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Report £7 (Y � �ksv swALIS Dan Nelson From: Josh Cabot <joshc@serapdx.com> Sent: Friday, December 11, 2015 4:30 PM To: Tom Rogers; David Stephenson Cc: Mark VanDomelen; Dan Nelson; 'Gretchen Hall'; 'Candace Sy' Subject: RE: Burnham and Ash Apartments This is wonderful news Tom. Thank you for the update. We will get the hardcopy drawings and calcs into the City on Monday. Best Regards, Josh Cabot, LEED AP azoic d: 503.445.7898 o: 503.1/15.7372 SERA sustainable design for the built environment serapdx.com From:Tom Rogers [mailto:rogerst@rosenet.net] Sent: Friday, December 11, 2015 11:21 AM To: David Stephenson <davids@serapdx.com>;Josh Cabot<ioshc@serapdx.com> Cc: 'Mark VanDomelen' <markv@tigard-or.gov>; dann@tigard-or.gov; 'Gretchen Hall' <Gretchen@catenaengineers.com>; 'Candace Sy' <Candace@catenaengineers.com> Subject: Burnham and Ash Apartments David/Josh The structural review for Building 1 is complete. Documents with all changes need to be compiled and submitted to the City. In addition to drawings,the submittal needs to include calculations that clearly show the end results of the analysis. If you have questions, let me know. Tom Rogers DISCLAIMER: This message and any attachments are intended for the sole use of the individual or entity to whom it is addressed. It may contain information that is privileged,confidential,and/or exempt from disclosure under applicable law. If you are not the intended recipient,you are hereby notified that you may not use,copy,disclose,or distribute this message or any information contained within,including any attachments.to anyone.If you have received this message in error,please immediately advise the sender and permanently delete the message and any attachments and destroy any printouts made. Although we have taken steps to ensure that our e-mail and attachments are free from viruses.the recipients should also ensure that they are virus free. • 1 EROGERS NGINEERING Structural Engineering•Building Design•Code Consulting■Inspection Services 558 S.E.Jackson St Roseburg,Oregon 97470 Ph: (541) 672-0315 Fax: (541)672-1787 roeerstt'a)rosenet net September 9, 2015 SERA Design &Architecture, Inc. Attn: David Stephenson 338 NW Fifth Ave. Portland, OR 97209 RE: Burnham& Ash Apartments,Tigard, OR Dear Mr. Stephenson, Rogers Engineering is providing structural plan review services for the City of Tigard. A preliminary review of the drawings for the above noted project has been completed. Additional information or clarification is needed for the following items in order to continue the review. Building 1 1. Provide information correlating the framing members in the RISA analysis with the drawings. OSSC Sec. 1603 2. Where does the RISA analysis specify material grades? OSSC Sec. 107.1 3. The RISA roof framing schematic on calculation page 6 appears to show transverse orientated trusses throughout the building. Clarify how this accommodates the hip roof framing. OSSC Sec. 1604 4. The RISA floor framing schematics appear to show smaller joist spacing in some locations. Provide clarification. OSSC Sec. 1604 5. Provide calculations for typical floor joists. OSSC Sec. 1604 - = 6. Calculation pages 54—55 appear to specify columns for each level. Where are columns for levels 2-4 specified on the plans? OSSC Sec. 107.1 7. Where is column 17 located? OSSC Sec. 107.1 8. The footing calculation(after page 55) specifies (4)#5 each way,whereas 3A/S501 shows (4)#4 bars. Provide clarification. OSSC Sec. 1604 9. Where are shear wall lengths specified in the calculations? OSSC Sec. 1604 10. The shear wall panel designations on page 83 are incomplete. Provide complete information. OSSC Sec. 107.1 11. Some shear walls have nail spacing omitted from the summary, for example WP690, WP692, WP989, etc. Provide complete information. OSSC Sec. 107.1 12. Level 1 shear walls 26, 27, 28, 69 and 70 on sheet SO11 do not appear to match the calculations. Provide clarification. OSSC Sec. 1604 13. Level 1 shear walls 37a, 37b, 40a and 40b on sheet S011 do not appear to match the calculations. Provide clarification. OSSC Sec. 1604 A Burnham &Ash Apartments September 9, 2015 Page 2 14. Shear wall tension loads for several walls on sheet SO11 do not match the calculations. For example,walls 38,41,42,43, etc. Provide revised calculations or plans. OSSC Sec. 1604 15. Calculation page 89 references wall WPI 197D for design loads. Where are the load results shown in the calculations? OSSC Sec. 1604 16. Calculation page 89 references wall WP1268A for loads at grid A. Clarify where the RISA calculations show this information. OSSC Sec. 1604 17. The shear wall length on calculation page 96 does not appear to match sheet S111. Provide clarification. OSSC Sec. 107.1 18. Provide footing calculations for bearing walls and show how loading is determined. OSSC Sec. 107.1 19.Provide footing calculations for concentrated loads and show how loading is determined. OSSC Sec. 107.1 20.Provide calculations for isolated columns. OSSC Sec. 107.1 21.Provide steel beam, column and connection calculations. OSSC Sec. 1604 22. Provide calculations for prefabricated balcony connections. OSSC Sec. 1604 Building 2 23. Clarify how calculation page 99 corresponds to the drawings. OSSC Sec. 107.1 24. Provide schematic drawings for each level with members identified that correspond to the calculations. Provide calculations for all members with loading clearly identified. OSSC Sec. 1604 25. Calculation pages 122-125 show wind 0 for load cases 1 &2 and wind 90 for cases 3 & 4. Provide clarification. OSSC Sec. 1609 26. Calculation page 130 notes a rigid diaphragm design. Clarify how this corresponds to ASCE 12.3.1.2. 27. Calculation page 130 appears to indicate all level 2 shear walls to be type 7,except walls 1 and 5. Walls 6 and C are shown as type 6 on sheet S221. Provide clarification. OSSC • Sec. 107.1 28. Calculation page 134 shows the length of shear wall B as 10 feet, wall E as 39 feet and wall H as 46 feet. This does not appear to match the drawings. Provide clarification. OSSC Sec. 1604 29. Calculation page 144 shows the length of shear wall B as 10 feet. This does not appear to match the drawings. Provide clarification. OSSC Sec. 1604 30. Where are shear wall calculations for level 3? OSSC Sec. 1604 31. The diaphragm loads on calculation page 150 do not appear to correspond to the shear wall design loads. Provide clarification. OSSC Sec. 1604 32. The diaphragm analysis on calculation pages 152 and 154 do not appear to account for openings in the diaphragm. Provide revised calculations. OSSC Sec. 1604 33. The overturning loads on calculation pages 156 and 158 do not appear to correspond with the shear wall loads. Provide clarification. OSSC Sec. 1604 34. Provide calculations for shear wall overturning and holdowns for all walls. OSSC Sec. 1604 Burnham&Ash Apartments September 9, 2015 Page 3 35.Provide calculations for the holdown embed shown in detail 2/S602. OSSC Sec, 1604 36. Provide footing calculations for bearing walls and show how loading is determined. OSSC Sec. 107.1 37. Provide footing calculations for concentrated loads and show how loading is determined. OSSC Sec, 107.1 38. Provide calculations for all columns. OSSC Sec. 107.1 General Comments 39. Provide a copy of the geotechnical report for review and our records. OSSC Sec. 1803 40. Provide calculations for all stair framing. OSSC Sec. 1604 41. Footing type 2 in detail 3B/S501 does not appear to have minimum reinforcing per ACI 5.10. Provide clarification. 42. Sheet S121, Grid G-15.8 references detail 6/S609 for a brick ledge. Provide clarification. OSSC Sec. 107.1 43. Sheet S122,Grid G.2-15.8 references detail 9/S609, which has been omitted. OSSC Sec. 107.1 44.Provide complete calculations for the private garage. OSSC Sec. 1604 In order to expedite the review,provide a written response indicating how each item is resolved and which drawing, detail or calculation contains the supplemental information as applicable. Should you have questions or need additional information,please contact me at your convenience. Referenced Codes OSSC 2014 Oregon Structural Specialty Code ASCE 7-10 Minimum Design Loads for Buildings and Other Structures ACI 318-11 Building Code Requirements for Structural Concrete Respectfully, 67;7)7,74 Tom Rogers, P.E. C: Mark VanDomelen, Building Official ROGERS ENGINEERING Structural Engineering■Building Design •Code Consulting■Inspection Services 558 S.E.Jackson St. Roseburg,Oregon 97470 Ph: (541) 672-0315 Fax: (541)672-1787 roRerstairosenet net October 21, 2015 SERA Design&Architecture, Inc. Attn: David Stephenson 338 NW Fifth Ave. Portland, OR 97209 RE: Burnham&Ash Apartments,Tigard,OR Dear Mr. Stephenson, Rogers Engineering has completed a review of the supplemental information and plan review response. Following is the status of comments from the September 9 review. Building 1 1. Provide information correlating the framing members in the RISA analysis with the drawings. OS SC Sec. 1603 Response: See attached RISA floor plans. 1.1 Calculation page A-25 specifies 10.75x24 at grid 16-G. Does not match the drawings. 1.2 Calculation page A-25 specifies 3.5x12 at grids B.5-15.3,-16.1, and-16.5. Does not match the drawings. 1.3 Calculation page A-25 specifies 3.5x12 at grid B-13.1. Does not match the drawings. - • 1:4-Calculation-page A-25 specifies 5.5x12-at grid D-15.-Does-not match-thee - - - - • drawings. 1.5 Calculation page A-25 specifies 2.5x6 at grid D-13.4. Does not match the drawings. 1.6 Calculation page A-25 specifies W30x108 at grid E.5-15.5. Does not match the drawings. 1.7 Calculation page A-25 specifies 3.5x18 at grid F.6-13.5 and G.3-13.5. Does not match the drawings., 1.8 The W24 beams on calculation page A-25,grid G-15.8 is not legible. 1.9 Calculation page A-25 specifies 5.5x34.5 at grid G-14. Does not match the drawings. 1.10 Provide calculations for the 8-3/4x24 at grid L-13 sheet S123. 1.11 Provide calculations for the 5-1/2x24 beams at grids K-14 and K.9-13.7 sheet S123. 1.12 Calculation page A-25 shows 3.5x12 beams at grids J-23.5 and J-26.6. Does not match the drawings. Burnham &Ash Apartments October 21,2015 Page 2 1.13 Calculation page A-25 shows 55x12 beams at grids J-21 and J-22. Does not match the drawings. 1.14 Calculation page A-25 shows a 3.5x12 beam at grid H.3-15.3. Does not match the drawings. 1.15 Calculation page A-26 shows 3.5x12 beams at grids B.5-15.3,B.5-16.1 and B.5-17.7. Does not match the drawings. 1.16 Calculation page A-26 shows 3.5x12 beams at grids F.4-13.5 and G.4-13.5. Does not match the drawings. 1.17 Calculation page A-26 shows 3.5x12 beams at grids 11.4-15.3 and K-13.3. Does not match the drawings. 1.18 Calculation page A-26 shows a 3.125x9 beam at grid K-28.1. Does not match the drawings. 1.19 Calculation page A-26 shows 3.5x12 beams at grids J-23.4, and J-26.1. Does not match the drawings. 1.20 Provide calculations for the 3-1/2x12 at grid 11.5,26 on sheet S132. 1.21 Calculation page A-26 shows 5.5x12 beams at grids J-21 and J-22. Does not match the drawings. 1.22 Provide calculations for the 5-1/2x12 beam at grid D.5, 15.9 on sheet S141. 1.23 Calculation page A-27shows 3.5x12 beams at grids B.5-15.3 and B.5-16.1. Does not match the drawings. 1.24 Calculation page A-27 shows two 5.5x12 beams at grid B-13.5. Does not match the drawings. 1.25 Calculation page A-27 shows glulam beams on grid 12.4-B to D.2. Does not match the drawings. 1.26 Calculation page A-27 shows 3.5x12 glulam beams on grids F.3-14,F.4-13.5 and G.4-13.5. Does not match the drawings. 1.27 Provide calculations for the 5-1/2x161/2 beams on grid 15.2,sheet 5143. 1.28 Calculation page A- 7 shows a 5.5x12 beam at grid G.2-15. Does not match the drawings. 1.29 Calculation page A-27 shows a 3.5x12 beam at grid J.5-123. Does not match the drawings. 1.30 The 5.5x12 on calculation page A-27 at grid J-15 is not specified on the drawings. 1.31 Calculation page A-27 shows a 3.5x12 beam at grids H.4-15.3 Does not match the drawings. 1.32 Calculation page A-27 shows 3.5x12 beams at grids K-25.2,J5-26.6,J.5-28, J-26.2, and J-23.4. Does not match the drawings. 1.33 Provide calculations for the 3-1/2x12 at grid H.5-26 on sheet 5142. 1.34 Calculation page A-25 shows 5.5x12 beams at grids J-21 and J-22. Does not match the drawings. 1.35 Sheets S151, S152 and S153 specify 4x8 headers U.N.O. This does not match calculation page A-28. Provide revised calculations or drawings. Burnham&Ash Apartments October 21, 2015 Page 3 1.36 Provide a schematic showing the location of beams specified on calculation page A-29. 1.37 Calculation page A-30 shows 10-3/4"wide beams. Provide clarification. 1.38 Provide a schematic with beams labeled and code check for the labeled beams. 2-3 Closed. 4. The RISA floor framing schematics appear to show smaller joist spacing in some locations. Provide clarification. OSSC Sec. 1604 Response: Floor joists are a bidder designed item. Review will be completed when deferred items provided. 5. Provide calculations for typical floor joists. OSSC Sec. 1604 Response: Floor joists are a bidder designed item. Review will be completed when deferred items provided. 6. Calculation pages 54-55 appear to specify columns for each level. Where are columns for levels 2-4 specified on the plans? OSSC Sec. 107.1 Response: Columns locations and sizes are specified at the foundation and continue up to the roof 6.1 Where are columns CS12, CS13,CS14,CS15,CS16 and CS19 specified on the plans? 6.2 Calculation page A-5 evaluates an 8x8 column. Where is the column specified in the plans? 6.3 Where.is the 6x10 on calculation page A-7 located? 6.4 Where is the 6x8 on calculation page A-10 located? 6.5 Clarify the location of CS22 on calculation page A-12. 6.6 Calculation pages A-18 and A-19 show columns for levels 3 and 4. The response indicates columns noted on the foundation plan continue to the roof. Provide clarification. 6.7 Calculation page A-20 specifies various steel columns. Provide a schematic showing location of the columns. 7-8 Closed. 8. Where are shear wall lengths specified in the calculations? OSSC Sec. 1604 Response:See attached calculations and updated detail 3A/S501. 8.1 Wall 1295 on calculation page 64 does not correspond to the wall location on sheet S141. Provide revised calculations. 8.2 RISA shows wall WP 1398C as 26 ft. length. Does not appear to match S141. 8.3 RISA shows wall WP 1219 as 8.6 ft. length. Does not appear to match S141. 8.4 RISA shows wall WP 1220 as 15.6 ft.length. Does not appear to match S141. 8.5 RISA shows wall WP 1221 as 18.1 ft.length. Does not appear to match S141. 8.6 RISA shows wall WP 1100A as 11.7 ft.length. Does not appear to match S141. 8.7 Where is the length of wall WP 1381B specified in the calculations? 8.8 Where is the wall length and nailing for WP237 shown in the calculations? 8.9 Walls WP 1107A and WP 1197C are not identified on sheet S143. Burnham &Ash Apartments October 21, 2015 Page 4 8.10 RISA shows wall WP 1244 as 22.4 ft. length. Does not appear to match S143. 8.11 RISA shows wall WP 1236 as 10 ft. length. Does not appear to match S143. 8.12 RISA shows wall WP 1192D as 19.5 ft. length. Does not appear to match S143. 8.13 RISA shows wall WP 1232 as 21 ft. length. Does not appear to match S143. 8.14 RISA shows wall WP 1373 as 16.9 ft. length. Does not appear to match S143. 8.15 RISA shows wall WP 1233 as 21 ft. length. Does not appear to match S143. 8.16 Provide calculations for shear walls on grid 13.4-KtoM on sheet S143. 8.17 RISA shows wall WP 1387 as 8.5 ft. length. Does not appear to match S142. 8.18 RISA shows wall WP 1414 as 24.8 ft. length. Does not appear to match S142. 8.19 RISA shows wall WP 1213 as 17.4 ft. length. Does not appear to match S142. 8.20 RISA shows wall WP 1113 as 10.8 ft. length. Does not appear to match 5142. 8.21 RISA shows wall WP 1194D as 17.5 ft.length.Does not appear to match S142. 8.22 RISA shows wall WP 1229 as 14.9 ft. length. Does not appear to match S142. 8.23 RISA shows wall WP 1382B as 23.4 ft.length. Does not appear to match S142. 8.24 RISA shows wall WP 1227 as 11 ft.length. Does not appear to match S142. 8.25 Wall WP 1126E on calculation page 65 does not correspond to the wall location on sheet S131. Provide revised calculations. 8.26 RISA shows wall REV WP 897 as 20.9 ft.length. Does not appear to match S131. 8.27 Where are calculations for walls WP 899 and WP 1300B on page 65? 8.28 RISA shows wall REV WP 1096 as 18.9 ft. length. Does not appear to match S131. 8.29 RISA shows wall REV WP 1098 as 19.1 ft length. Does not appear to match S131. 8.30 RISA shows wall REV WP 1103 as 15.6 ft.-length. Does not appear to thatch S131. 8.31 RISA shows wall REV WP 1105 as 18.1 ft. length. Does not appear to match S131. 8.32 RISA shows wall REV WP 921 as 13.3 ft.length. Does not appear to match S133. 8.33 Shear walls at grid J-15.3 to 16.1 are not identified on sheet S133. 8.34 RISA shows wall WP 1127B as 22.4 ft. length. Does not appear to match S133. 8.35 RISA shows wall WP 1142A as 10 ft.length. Does not appear to match S133. 8.36 RISA shows wall REV WP 1033 as 19.5 ft. length. Does not appear to match S133. 8.37 RISA shows wall WP 1140 as 21 ft. length. Does not appear to match S133. 8.38 RISA shows wall WP 1192A as 16.9 ft. length. Does not appear to match S133. Burnham &Ash Apartments October 21, 2015 Page 5 8.39 RISA shows wall WP 1141A as 21 ft.length. Does not appear to match S133. 8.40 RISA shows wall WP 1197 as 8.5 ft. length. Does not appear to match 5132. 8.41 RISA shows wall WP 351 as 24.8 ft. length. Does not appear to match S132. 8.42 RISA shows wall REV WP 1084 as 17.4 ft.length. Does not appear to match S132. 8.43 RISA shows wall REV WP 1046 as 17.5 ft. length. Does not appear to match S132. 8.44 RISA shows wall REV WP 911 as 10.8 ft.length. Does not appear to match S132. 8.45 RISA shows wall WP 1196B as 7.4 ft. length. Does not appear to match S132. 8.46 RISA shows wall WP 1148 as 14.9 ft.length. Does not appear to match S132. 8.47 RISA shows wall WP 1380B as 23.4 ft.length. Does not appear to match S132. 8.48 RISA shows wall WP 152B as 11 ft.length. Does not appear to match S132. 8.49 Wall WP 872 on calculation page 66 does not correspond to the wall location on sheet S124. Provide revised calculations. 8.50 RISA shows wall WP 795 as 18.9 ft. length. Does not appear to match S124. 8.51 RISA shows wall WP 796 as 19.1 ft. length. Does not appear to match S124. 8.52 RISA shows wall WP 689 as 20.9 ft. length. Does not appear to match S124. 8:53 Calculations specify wall WP 784 with (2) 15/32 w/ 10d 4" o.c. Sheet S124 notes wall type 1 with sheathing on one side. 8.54 RISA shows wall WP 1289C as 9 ft. length. Does not appear to match S124. 8.55 RISA shows wall WP 799 as 18.1 ft. length. Does not appear to match S124. 8.56 RISA shows wall WP 798 as 15.6 ft.length. Does not appear to match S124. 8.57 Calculations specify wall WP 692 with (2) 15/32 w/ 10d 4"o.c. Sheet S126 notes wall type 6 with sheathing on one side. 8.58 RISA shows wall WP 706 as 13.3 ft.length. Does not appear to match S126. 8.59 RISA shows wall WP 813 as 10 ft. length. Does not appear°to match S126. 8.60 RISA shows wall WP 821 as 22.4 ft. length. Does not appear to match S126. 8.61 Walls WP 693 and WP 778 on grid J are not specified on sheet S126. 8.62 RISA shows wall WP 810 as 21 ft. length. Does not appear to match S126. 8.63 RISA shows wall WP 950 as 16.9 ft. length. Does not appear to match S126. 8.64 RISA shows wall WP 809 as 21 ft.length. Does not appear to match 5126. 8.65 RISA shows wall WP 773 as 19.5 ft.length. Does not appear to match S126. 8.66 Calculations specify wall WP 755 with (2) 15/32 w/10d 4"o.c. Sheet S125 notes wall type 1 with sheathing on one side. 8.67 RISA shows wall WP 963 as 8.5 ft.length. Does not appear to match S125. 8.68 RISA shows wall WP 989 as 24.8 ft. length. Does not appear to match S125. 8.69 RISA shows wall WP 961 as 7.4 ft. length. Does not appear to match S125. 8.70 RISA shows wall WP 699 as 10.8 ft.length. Does not appear to match S125. 8.71 RISA shows wall WP 775 as 17.5 ft. length.Does not appear to match S125. 8.72 RISA shows wall WP 806 as 14.9 ft. length. Does not appear to match S125. Burnham&Ash Apartments October 21, 2015 Page 6 8.73 RISA shows wall WP 1006 as 23.4 ft. length. Does not appear to match S125. 8.74 RISA shows wall WP 805 as 11 ft. length. Does not appear to match S125. 8.75 RISA shows wall WP 791 as 17.4 ft. length. Does not appear to match S125. 8.76 RISA shows wall WP 1229A as 15.1 ft.length. Does not appear to match 5111 8.77 RISA shows wall WP 1046 as 20.9 ft.length. Does not appear to match 5111. 8.78 Calculations specify wall WP 1342C with 10d 2"o.c. This does not match 5111. 8.79 RISA shows wall WP 1294A as 9 ft. length. Does not appear to match Sill. 8.80 RISA shows wall WP 1156C as 18.1 ft. length. Does not appear to match 5111. 8.81 RISA shows wall WP 1155B as 15.6 ft. length. Does not appear to match 5111. 8.82 RISA shows wall WP 1152C as 18.9 ft. length. Does not appear to match Sill. 8.83 RISA shows wall WP 1153C as 19.1 ft. length. Does not appear to match Sill. 8.84 Clarify the wall label for the wall at grid 15-G.4 to G.6. 8.85 RISA shows wall WP 1063 as 13.3 ft.length. Does not appear to match S113. 8.86 RISA shows wall WP 1170B as 10 ft. length. Does not appear to match 5113. 8.87 RISA shows wall WP 1178B as 22.4 ft. length. Does not appear to match S113. 8.88 Shear walls at grid J-15.3 to 16.2 are not identified on sheet S113. 8.89 RISA shows wall WP 1167A as 21 ft. length. Does not appear to match 5113. 8.90 RISA shows wall WP 1307A as 16.9 ft.length. Does not appear to match S113. 8.91_ RISA shows wall WP 1166B as 19.6 ft. length. Does not appear to match S113. 8.92 RISA shows wall WP 1130B as 19.5 ft. length. Does not appear to match 5113. 8.93 RISA shows wall WP 1320 as 8.5 ft. length. Does not appear to match 5112. 8.94 RISA shows wall WP 1346 as 24.8 ft.length. Does not appear to match 5112. 8.95 RISA shows wall WP 1148C as 17.4 ft. length. Does not appear to match S112. 8.96 RISA shows wall WP 1318 as 7.4 ft.length. Does not appear to match S112. 8.97 RISA shows wall WP 1056 as 10.8 ft. length. Does not appear to match 5112. 8.98 RISA shows wall WP 1132B as 17.5 ft.length. Does not appear to match S112. 8.99 RISA shows wall WP 1162D as 11 ft.length. Does not appear to match S112. 8.100 RISA shows wall WP 1363A as 23.4 ft.length. Does not appear to match S112. Burnham &Ash Apartments October 21, 2015 Page 7 8.101 RISA shows wall WP 1163B as 14.9 ft.length. Does not appear to match S112. 10-19 Closed. 20. Provide calculations for isolated columns. OSSC Sec. 107.1 Response: See attached RISA results and calculations. Calculation page A-16 specifies #4 ties 10" o.c. Where is this specified on the drawings? 21. Provide steel beam, column and connection calculations. OSSC Sec. 1604 Response: See attached RISA results and calculations. Clarify which pages include the connection calculations. 22. Provide calculations for prefabricated balcony connections. Response: See attached RISA results and calculations. Details on sheet S305 reference detail 14/S608. Provide clarification. Building 2 23. Closed. 24. Provide schematic drawings for each level with members identified that correspond to the calculations. Provide calculations for all members with loading clearly identified. OSSC Sec. 1604 Response: See attached RISA floor plans. 24.1 Calculation page A-117 specifies member M921 as 6-3/4x21. Sheet S220 shows a 6-3/4x18. Provide revised plans or calculations. 24.2 Calculation page A-120 specifies member M869 as 6-3/4x22-1/2. Sheet S220 shows 6-3/4x21. Provide revised plans or calculations. 24.3 Calculation page A-124 specifies member M860 as 6-3/4x21. Sheet S220 shows 6-3/4x18. Provide revised plans or calculations. 24.4 Provide a schematic showing the location of beam M927 (A-142),M34 (A- 145),M50(A-148),and M77 (A-153). 24.5 Calculation page A-161 appears to specify a PSL in lieu of the glulam evaluated. Sheet S230 shows a glulam at this location. Provide clarification. 24.6 Calculation page A-162 shows 3.5x12 headers. This does not appear to match the drawings. Provide clarification. 24.7 Provide a code check summary and schematic identifying the members. 25-26 Closed. 27. Calculation page 130 appears to indicate all level 2 shear walls to be type 7, except walls 1 and 5. Walls 6 and C are shown as type 6 on sheet S221. Provide clarification. OSSC Sec. 107.1 Response: See calculations attached v. #27.1-16) and updated plans for wall marks. Calculation page#27.1 shows wall D as 28 ft. length. Clarify how this corresponds to the drawings. • 28. Calculation page 134 shows the length of shear wall B as 10 feet, wall E as 39 feet and wall H as 46 feet. This does not appear to match the drawings. Provide clarification. OSSC Sec. 1604 Burnham &Ash Apartments October 21, 2015 Page 8 Response: See calculations attached(#27) and updated plans. Calculation page#27.1 shows wall H as 46 ft.length. Clary how this corresponds with the drawings. 29-37 Closed. 38. Provide calculations for all columns. OSSC Sec. 107.1 38.1 Calculation page A-100 shows a 6x6 column at grid 10.1-A.1. Provide clarification. 38.2 Calculation page A-100 shows column CS43_1 as 10x10 and calculation page A-103 shows a 5.5x10. Sheet S210 appears to show a 6x8 at this location. Provide clarification. 38.3 Where is the 8x12 on calculation page A-105 located? 38.4 Provide a schematic showing the location of columns on calculation pages A114 and A-115. General Comments 39. Provide a copy of the geotechnical report for review and our records. OSSC Sec. 1803 Response: Owner to provide. The geotechnical report was not provided. 40-44 Closed. In order to expedite the review,provide a written response indicating how each item is resolved and which drawing,detail or calculation contains the supplemental information as applicable. Should you have questions or need additional information,please contact me at your convenience. Referenced Codes OSSC 2014 Oregon Structural Specialty Code ASCE 7-10 Minimum Design Loads for Buildings and Other'Structures ACI 318-11 Building Code Requirements for Structural Concrete Respectfully, Tom Rogers, P.E. C: Mark VanDomelen, Building Official ARCHITECTURE _ '.• 470, Memorandum ItRRi,OES N �(�� P ANNINQ? �' � RR�0E5�IG,�N, Date September 2,2015 Project Name Burnham&Ash Apartments Project Number 1503004 Attention John Wolff, Deputy Fire Marshal II Address Tualatin Valley Fire&Rescue 11945 SW 70th Avenue,Tigard, OR 97223 From Josh Cabot SERA Architects Subject Alternative Means&Methods Request for Building 1 Exterior Access In accordance with Section 104.9 of the 2014 Oregon Fire Code,we are requesting an alternative means of access for reaching the entire perimeter of Building 1. As dictated by OFC 503.1.1,access roads shall be within 150 feet of all portions of the exterior wall of the first floor of a building. However,due to the shape of the building footprint as well as the surrounding topography and sensitive land conditions,providing access to the courtyard side of the building with an access road is not feasible. Because of these site conditions along with the fact that Building 1 is provided with an automatic fire sprinkler system compliant with OFC 903,this building meets the Exception which allows the Fire Code Official to modify this requirement per Conditions 1 and 2 of OFC 503.1.1. This AM&M proposes an alternative pair of strategies that we believe meets this requirement without compromising safety or responsiveness in the event of an emergency. PROJECT INFORMATION Project: Burnham&Ash Apartments Building 1: 12850 SW Ash Avenue (Tax Lot Map&ID: 2S102AD 02800,02900,03000) Tigard,OR 97223 Contact Person: Josh Cabot SERA Architects 338 NW 5th Avenue Portland,OR 97209 joshc(a,serapdx.com 503-445-7898 Owner Info: Premium Property—Tigard LLC ATTN: Chris Nelson b_ 1015 NW 11",Ave. Portland, OR 97209 503-226-1972 338 NW 5TH AVENUE PORTLAND OR 97209 t 503.445.7372 F 503.445.7395 SERAPDk.COM PROPOSAL There are two main strategies we propose to employ as an alternative: 1) Expand the trailhead west of Building 1 to accommodate emergency response vehicles(not aerial apparatus vehicles however);and 2) Provide a horizontal standpipe connection within the courtyard to be used by emergency responders on foot. To improve access to the west face of Building 1,we have worked in tandem with the City of Tigard to redevelop the trailhead for the Fanno Creek Trail at the end of Ash Avenue,such that it can provide at least limited access to TVF&R response vehicles. The trail at this location is bounded on the east by an existing vegetated stormwater facility and to the west by a grove of trees that topographically slopes down and away from the trail. With all of this in mind,we have provided an expanded trail that is paved in asphalt to a 12'-0"width with an additional 4'-0"gravel shoulder located immediately to the west. Any further widening of this trail would require tree removal and/or a complete redevelopment of the public stormwater facility. Based on initial conversations with TVF&R,it sounds like a 16-0"trail width,though not ideal,will be sufficient.This expanded trail,which can serve as a fire access lane,will be paved to support not less than 12,500 pounds point load(wheel load)and 75,000 pounds live load(gross vehicle weight). The length of this lane has been set to ensure access to within 150 feet of the end of the west wing of Building 1. A public hydrant located at the termination of Ash Avenue, NW of Building 1,is located within 100 feet of this fire lane. In order to ensure access to the more difficult inner courtyard area,we propose adding a buried horizontal standpipe feeding from the vertical standpipe located in the building's west stair,Stair 1W(S103). This standpipe connection will be located adjacent to the private pedestrian path that extends from the Fanno Creek Trail,just south of Building l's west wing, inward to the courtyard's amenity space. The position of this standpipe connection has been set to ensure 150 foot access to all of the exterior walls that border the courtyard. This standpipe will likely be a dry system due to concerns of freezing. Note that there is one area of wall at the far south end of Building l's east wing,which due to extreme topography adjacent to the building,will be better accessed from the main parking lot east of Building 1. This area is well within 150 feet of the main aerial apparatus road and turnaround that runs to the east of Building 1. Taken as a whole,we feel these two strategies will ensure all portions of the ground floor of Building 1 are accessible by emergency responders within easy connection distance of fire suppression water. Please do not hesitate to contact me with any questions or concerns as you review this request. We look forward to your response. Thank You, TUALATIN VALLEY FIRE&RESCUE 4 APPROVED CONDITIONALLY APPROVED 0 Josh Cabot.LEED AP 13D-FC APPROVAL OF PLANS IS NOT AN APPROVALOF OMISSIONS OR OVERSIGHTS, SERA Design and Architecture,Inc. SE ATTR H- joshc@serapdx.com1' LETTER 0 d:503.445.7898 `�' t qa10-15 o:503.445.7372 P S EXAMi DATE Enclosed: 2015-09.02 Annotated A051 Site Plan cc: Gary Pagenstecher,City of Tigard Planning;Mark VanDomelen,City of Tigard Building Dept; David Stephenson, SERA Architects Alternative Means&Methods Request for Building 1 Access to Tualatin Valley Fire&Rescue,September 2,2015 Page 2 of 2 Is I SERA eternal,..ea/saner.of ta/meea to al. I ——— -___ for emergency responsereM1.keuess I F / 5 • / a- y ® I IACMIEC URE 1 USW Deg..PUNNING IMEIa0R CF5GN CCC / __ m h —. E y > tiiiiiuI � ' — 411%11440"Th res04% • � ii' f i � j —�; m OF+ - ' _ ....id-- - r. IT 11 14 • 4/'• - •) (i) ro.T.,m1116i 7:Z17 4a- , rii.i.,_' . • " ' " -- - -a y r - /��r / L')'.. 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SITE PLAN m k.......,.....'11,-, In A051 Memorandum �` ARCHITECTURE ' S emorandum t*,,a����"� a,,., URBAN DESIGN PLANNING 444 .. 3. ; • INTERIOR DESIGN: 2 Date September 2, 2015 Project Name Burnham &Ash Apartments Project Number 1503004 Attention John Wolff, Deputy Fire Marshal II Address Tualatin Valley Fire& Rescue 11945 SW 70th Avenue, Tigard, OR 97223 From Josh Cabot SERA Architects Subject Response to TVF&R Conditions of Approval Please accept this memorandum as a cumulative response to the Conditions of Approval sent on June 26, 2015. We have paraphrased your conditions and itemized our responses below, according to the numbering established in the TVF&R Conditions of Approval. In addition, applicable exhibits have been attached herein to demonstrate compliance with these conditions: 1) Buildings exceeding 30 feet in height or three stories in height shall have at least two separate means of fire apparatus access(OFC D104). Additional access road needed to access the west side of Building#1. Fire apparatus must be suitable for fire apparatus to be able to reach within 150 feet of the furthest portion of the building. A modified fire apparatus lane is now proposed west of Building 1 that will act normally as a widened portion of the Fanno Creek trailhead where it meets Ash Avenue. This fire lane will be paved 12'-0"wide with a 4'-0" gravel shoulder and will extend to within 150'-0"of the end of Building l's west wing. Although this fire lane will not meet the aerial apparatus width requirements,it will meet the loading criteria of 12,500 lb.point load and 75,000 lb. live load. Based on conversations with TVF&R, this fire lane will be used for response vehicles other than the aerial apparatus,since the aerial apparatus road that already meets the standard is located on the east side of Building 1. Please see the corresponding A051 site plan, enclosed herein as Exhibit A. Unfortunately,because of the long wings and deep courtyard created by Building 1's shape,this additional access lane will still not quite be able to meet the 150 foot access standard deep into the courtyard (OFC 503.1.1). Because of this,we are submitting an Alternative Means& Methods request in tandem with this response. This AM&M proposes to add a horizontal standpipe in the Building 1 courtyard fed by Building 1's fire suppression system,and accessible by a pedestrian path. The location of this standpipe will allow the 150 foot standard to be met alternatively, such that although a fire apparatus won't be able to access this deep part of the courtyard,all faces of the building will be able to be accessed by firefighters. Please find this corresponding AM&M enclosed herein at Exhibit B. 2) Buildings with a vertical distance between the grade plane and the highest roof surface that exceeds 30 feet in height shall be provided with a fire apparatus road constructed for use by the aerial apparatus with an 338 NW 5TH AVENUE PORTLAND OR 97209 T 503.445.7372 F 503.445.7395 SERAPDX.COM unobstructed driving surface width of not less than 26 feet...[The heights of both Building 1 and 2] requires these additional aerial fire apparatus requirements. Since Burnham &Ash contains 165 dwelling units with both buildings fully sprinklered per OFC 903,this development meets the exception listed under OFC D106: "Projects having up to 200 dwelling units may have a single approved fire apparatus road when all buildings, including nonresidential occupancies, are equipped throughout with an approved automatic sprinkler system in accordance with section 903.3.1.1, 903.3.1.2." This access road has the required hammerhead turnaround and measures 26 feet clear along its width,with the exception of one location,where a wall providing protection for a horizontal egress path extends 10 inches into the 26 foot clear width. See the Annotated A051 Site Plan,enclosed as Exhibit A. In addition to the one aerial apparatus road provided on the east side of Building 1,an additional fire lane is provided directly west of Building 1 (detailed in the response to Condition#1 above). Building 2 has available aerial apparatus access on both the south and west sides, as well as on the north (Burnham Street)side if need be. 3) At least one of the required aerial access routes shall be located within a minimum of 15 feet and a maximum of 30 feet from the building, and shall be positioned parallel to one entire side of the building. The side of the building on which the aerial access road is positioned shall be approved by the fire code official. Overhead utility and power lines shall not be located over the aerial access road or between the aerial access road and the building. (D105.3, D105.4) All roads available for aerial apparatus use meet this distance criteria. The alternative fire lane planned for the west side of Building 1, which is being design for response vehicle access but not aerial apparatus access, will be located within 40 feet of the west face of Building 1 and within 150 feet of the entirety of Building l's west façade. Building 2's aerial apparatus access will also meet this distance criteria. It is proposed that on-street parking will still be allowed around parts of the south and west sides of Building 2, except at locations of hydrants,the Building 2 FDC, and access driveways. However the distance criteria of at least 15 feet will be met. 4) Where fire apparatus roadways are not of sufficient width to accommodate parked vehicles and 20 feet of unobstructed driving surface, "No Parking"signs shall be installed on one or both sides of the roadway and in turnarounds as needed. Signs shall read"NO PARKING-FIRE LANE"and shall be installed with a clear space above grade level of 7 feet. Signs shall be 12 inches wide by 18 inches high and shall have red letters on a white reflective background. (OFC D103.6) At Building 1,the aerial apparatus road on the east side will have parking stalls oriented perpendicular to the flow the access road, so it is assumed that "No Parking" signs will not be necessary except at areas where curbing exists parallel to the road and at the hammerhead turnaround at the south end of the property. See the attached A051 Site Plan with annotations showing"No Parking"signage. At Building l's alternate fire lane on the west side,trail signage and bollards will be used to ensure no one parks along or in front of the trailhead. Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 2 of 8 • "No Parking"signs are not expected to be used at Building 2; parking control will be achieved through the use of painted curbs instead. 5) Where required,fire apparatus access roadway curbs shall be painted red (or as approved)and marked "NO PARKING FIRE LANE" at 25 foot intervals. Lettering shall have a stroke of not less than one inch wide by six inches high. Lettering shall be white on red background (or as approved). (OFC 503.3) Curbing at fire hydrants and at areas of"No Parking" per Response#4 above will receive painted red curb as described above. 6) Where a fire hydrant is located on a fire apparatus access road,the minimum road width shall be 26 feet and shall extend 20 feet before and after the point of the hydrant. (OFC D103.1) All hydrants(both public and private)have a 26 foot wide roadway that extends 20 feet before and after the hydrant. One public hydrant located at the NE corner of Building 1, near the intersection of Ash Avenue and the future Right-of-Way that separates the buildings, is located near a curb extension which reduces the roadway to a 20 foot width for a small length. These curb extensions do meet TVF&R clearance criteria for aerial apparatus vehicles. 7) Fire apparatus access roads shall be of an all-weather surface that is easily distinguishable from the surrounding area and is capable of supporting not less than 12,500 pounds point load (wheel load)and 75,000 pounds live load (gross vehicle weight). Documentation from a registered engineer that the final construction is in accordance with approved plans or the requirements of the Fire Code may be requested. (OFC 503.2.3) All fire apparatus access roads have pavement profiles with supporting subgrades to accommodate this loading. These profiles have been designed by GeoDesign Inc.,the development's geotechnical engineer, and have been coordinated with HHPR, Inc.,the development's civil engineer. 8) The inside turning radius and outside turning radius shall be not less than 28 feet and 48 feet respectively, measured from the same center point. (OFC 503.2.4 &D103.3) All turning radii have been coordinated to meet this criteria for fire access roads, lanes and turnarounds. 9) Portions of aerial apparatus roads that will be used for aerial operations shall be as flat as possible. Front to rear and side to side maximum slope shall not exceed 10%. All paved areas are graded at or below a 2%slope. The main aerial apparatus road east of Building 1 slopes downward to the south at approximately 1%. 10) Approved fire apparatus access roadways shall be installed and operational prior to any combustible construction or storage of combustible materials on the site.Temporary address signage shall also be provided during construction. (OFC 3309 and 3310.1) Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 3 of 8 This requirement has been made clear to JBA, LLC,the General Contractor for this development. All hydrants will be operational in addition to the installation of the fire apparatus roadways and temporary address signage prior to storage of combustible materials on site. 11) Shall be prohibited unless approved by the Fire Code Official. (OFC 503.4.1) Curb extensions have been added at the intersection of Ash Avenue and the future Right-of-Way that separates the buildings. The radii have been coordinated between TVF&R requirements and City of Tigard Engineering standards to ensure functionality. 12) The requirements for firefighting water supplies may be modified as approved by the fire code official where any of the following apply: (OFC 507.5.1 Exceptions) 1) Buildings are equipped throughout with an approved automatic fire sprinkler system (the approval of this alternate method of construction shall be accomplished in accordance with the provisions of ORS 455.610(5)). 2)There are not more than three Group R-3 or Group U occupancies. Both Buildings 1 and 2 are equipped with automatic fire sprinkler systems per OFC 903 and therefore meet Exception 1. We are not aware of any firefighting water supply modifications that will be needed. 13) The minimum fire flow and flow duration for buildings other than one-and two-family dwellings shall be determined in accordance with residual pressure(OFC Appendix B Table B105.2).The required fire flow for a building shall not exceed the available GPM in the water delivery system at 20 psi. Based on fire worksheets submitted with the development's Building Permit Application,the required fire flow for Building 1 (after occupancy hazard adjustments)is 5,103GPM. With the 75%reduction of fire flow due to the presence of an automatic fire sprinkler system,the available fire flow to the building must meet the minimum requirement of 1,500GPM. See Exhibit C—Required Fire Flow Worksheets. The required fire flow for Building 2 (after occupancy hazard adjustments) is 2,699GPM. With the 75% reduction of fire flow due to the presence of an automatic fire sprinkler system,the available fire flow to the building must meet the minimum requirement of 1,500GPM. See Exhibit C—Required Fire Flow Worksheets. Hydrant flow testing in the area has shown an available flow of 1,610GPM @ 20PSI=12,112GPM,with static pressure of 104PSI and residual of 94PSI. See Exhibit D—Hydrant Flow Test Record. 14) Applicants shall provide documentation of a fire hydrant flow test or flow test modeling of water availability from the local water purveyor if the project includes a new structure or increase in the floor area of an existing structure.Tests shall be conducted from a fire hydrant within 400 feet for commercial projects, or 600 feet for residential development. Flow tests will be accepted if they were performed within 5 years as long as no adverse modifications have been made to the supply system.Water availability information may not be required to be submitted for every project. (OFC Appendix B) See Exhibit D—Hydrant Flow Test Record which demonstrates compliance. Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 4 of 8 15) Approved firefighting water supplies shall be installed and operational prior to any combustible construction or storage of combustible materials on the site. (OFC 3312.1) This requirement has been made clear to JBA, LLC,the General Contractor for this development. All hydrants will be operational prior to storage of combustible materials on site. 16) Where a portion of the building is more than 400 feet from a hydrant on a fire apparatus access road, as measured in an approved route around the exterior of the building, on-site fire hydrants and mains shall be provided. In order to show compliance with this requirement, a private hydrant is proposed at the south end of the Building 1 parking lot. See Exhibit A—Annotated A051 Site Plan. All other areas comply. 17) The minimum number and distribution of fire hydrants available to a building shall not be less than that listed in (OFC Table C105.1) Per OFC Table C105.1, Building l's required fire flow of 5,103GPM dictates that 5-6 hydrants be provided. This development proposes 4 public hydrants, 1 private hydrant, and 1 horizontal standpipe system (per the Building 1 Access AM&M attached herein as Exhibit B). Per OFC Table C105.1, Building 1's required fire flow of 2,699GPM dictates that 3 hydrants be provided. This development proposes 3 public hydrants(per the Building 1 Access AM&M attached herein as Exhibit B)with a fourth hydrant located within distance limitations east of Building 1 along the new right-of-way. 18) Hydrants that are up to 600 feet away from the nearest point of a subject building that is protected with fire sprinklers may contribute to the required number of hydrants. (OFC 507.5.1) All of the hydrants listed under Response #17 above meet this 600 foot criteria since both buildings are protected with automatic fire sprinkler systems. 19) Private fire hydrants shall be painted red in color. (OFC 507) The private hydrant in the Building 1 parking lot will be painted red as required. 20) Fire hydrants shall be located not more than 15 feet from an approved fire apparatus access roadway unless approved by the fire code official. (OFC C102.1) All hydrants meet this distance criteria. 21) Where a fire hydrant is located on a fire apparatus access road,the minimum road width shall be 26 feet, exclusive of shoulders. (OFC D103.1) Please see the response to Condition#6 above. Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 5 of 8 22) Fire hydrant locations shall be identified by the installation of blue reflective markers. They shall be located adjacent and to the side of the center line of the access roadway that the fire hydrant is located on. In the case that there is no center line,then assume a center line and place the reflectors accordingly. (OFC 507) Reflectors identifying fire hydrant locations will be installed as dictated above. 23) Where fire hydrants are subject to impact by a motor vehicle,guard posts, bollards or other approved means of protection shall be provided. (OFC 507.5.6&OFC 312) All public hydrants have been placed within the furnishing zone on sidewalks and the private hydrant for Building 1 has been placed within a landscaped island within the parking lot. No additional bollards or other protective measures are proposed. 24) A 3 foot clear space shall be provided around the circumference of fire hydrants. (OFC 507.5.5) This required 3 foot clear space will be provided. 25) A fire hydrant shall be located within 100 feet of a fire department connection (FDC)or as approved. Fire hydrants and FDC's shall be located on the same side of the fire apparatus access roadway or drive aisle. (OFC 912& NFPA 13) •Fire department connections(FDCs)shall normally be located remotely and outside of the fall-line of the building when required. FDCs may be mounted on the building they serve,when approved. • FDCs shall be plumbed on the system side of the check valve when sprinklers are served by underground lines also serving private fire hydrants(as diagramed below). Submit for approval for wall mounted FDC as requested in e-mail dating March 30, 2015. The FDC for Building 1 will be located within a landscaped island on the system side of the double check valve since it is likely the private hydrant will be installed on the same line serving the building's fire sprinklers. A public hydrant has been strategically placed nearby within the sidewalk, as recommended by TVF&R. The FDC for Building 2 is proposed to be located on the exterior face of the building,outside of the Water Room. A public hydrant is also located nearby on the sidewalk without any drive aisle obstructions. Please see the Annotated A051 Site Plan,enclosed herein as Exhibit A. 26) A Knox Box for building access is required for this building. Please contact the Fire Marshal's Office for an order form and instructions regarding installation and placement. (OFC 506.1) A Knox Box will be wall-mounted at the main entrances of both Building 1 and Building 2. The Contractor will pursue ordering through the Fire Marshal's Office. Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 6 of 8 27) Rooms containing controls to fire suppression and detection equipment shall be identified as"Fire Control Room." Signage shall have letters with a minimum of 4 inches high with a minimum stroke width of 1/2 inch, and be plainly legible, and contrast with its background. (OFC 509.1) All rooms containing fire suppression/detection controls will be identified with signage as "Fire Control Room". Currently, this signage is anticipated at the Building 1 and 2 water and ground floor electrical rooms. 28) New and existing buildings shall have approved address numbers, building numbers or approved building identification placed in a position that is plainly visible from the street or road fronting the property.The numbers shall contrast with their background. Where required by the fire code official,address numbers shall be required in additional approved locations to facilitate emergency response. Numbers shall be a minimum of 4 inches high with a minimum stroke width of 0.5 inches. Addressing has been coordinated with City of Tigard and will be prominently displayed at both buildings per the criteria set forth above. Building 1 is currently planned to have one main address with sub-units assigned based on the apartments within;therefore one address will be displayed at the main entry. Building 2 will have one main address with sub-units assigned based on the apartments within;therefore one main building address will be displayed at the primary entry. Each of the two retail spaces will also receive an address located on the building near their street entrances. 29) The Oregon Fire Code (OFC) requires that certain newly constructed buildings have approved levels of emergency radio signal strength per OFC 510.2(relative to existing levels of public radio coverage available at the exterior). Where the design of the building reduces the level of coverage inside of the building below minimum performance levels, a distributed antenna system,signal booster,or other method approved by TVF&R and Washington County Consolidated Communications Agency shall be provided. The following building types shall require Emergency Radio Coverage testing prior to Certificate-of-Occupancy: 1.Any building with one or more basements or below grade building levels. 2.Any underground building 3.Any building more than 5 stories in height. 4.Any building 50,000 square feet or larger. Based on the criteria above,Building 1 will be equipped with a DAS backbone installed during construction, including a 2 hour fire rated shaft with an attached control room central to the building. See Exhibit E—A101-A114 Building Floor Plans for reference. Horizontal conduits will be run within the ceilings of each corridor to facilitate horizontal distribution of the system. Upon substantial completion, if wireless testing determines that a full DAS system will need to be installed,the Contractor will provide the required system. Due to the wood construction of the building and the • general low-profile of the surrounding buildings, it is likely this DAS will not be necessary. Building 2 does not meet the criteria that requires a DAS. Also, based on its wood construction and surroundings,wireless connectivity is not expected to be an issue. Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 7 of 8 A number of other minor changes have also occurred to the design since our initial Land Use package was submitted in April 2015. These changes are noted below,along with references to any pertinent exhibits that show these changes: • Increased amount of housing units from 164 to 165, which still complies with the required density computations detailed in 18.715. In tandem with this,the amount of parking spaces has increased from the minimum required 168 to 169. • Many of the balconies have been removed(mainly on the east face of Building l's east wing and on the east face of Building 2). Private roof decks have been provided on the fourth level of Building 1 on the north and west sides. • The site plan has been revised with curb extensions added at the new intersection of Ash Avenue and the street to-be-named that is to run between Buildings 1 and 2.This has been depicted on the A051 Site Plan enclosed herein as Exhibit B. • A fire lane designed for Tualatin Valley Fire & Rescue's (TVF&R's) small and medium vehicles has been developed at the trailhead into Fanno Creek Park,immediately west of Building 1. This fire lane will be 12'-0"wide with a 4'-0"gravel shoulder. This fire lane satisfies TVF&R's requirement to gain access to within 150'-0"of the west facade of Building 1. Further investigation and design will continue to cohesively blend TVF&R's access needs with the refined development of the trailhead, the nearby public stormwater facility, and the surrounding trees and landscape. All of this has been depicted on the A051 Site Plan enclosed herein as Exhibit A. Best Regards, Please do not hesitate to contact me with any questions or concerns as you review this request. Thank You, 9..LCE-15 Josh Cabot, LEED AP BD+C joshc@serapdx.com d:503.445.7898 o:503.445.7372 Enclosures: Exhibit A—Annotated A051 Site Plan Exhibit B—Alternative Means & Methods for Building 1 Exterior Access Exhibit C—Required Fire Flow Worksheets Exhibit D—Hydrant Flow Test Record • Exhibit E—A101-A114 Building Floor Plans • cc: Gary Pagenstecher, City of Tigard Planning; Mark VanDomelen, City of Tigard Building Dept; David Stephenson, SERA Architects Response to Tualatin Valley Fire&Rescue Conditions of Approval,September 2,2015 Page 8 of 8 BUILDING 1 y i �` I t��..� r ii•1 t Y 4 Tualatin Valley Fire & Rescue f P Tualatin Valley Fire Flow and Hydrant Worksheet Fire & Rescue North Operating Center Central Operating Center South Operating Center 20665 SW Blanton Street 11945 SW 70th Avenue 8445 SW Elligsen Road Aloha,OR 97007 Tigard,OR 97223 Wilsonville OR 97070 Phone:503-259-1400 Phone: 503-649-8577 Phone: 503-259-1500 Fax:503-259-1224 Fax: 503-642-4814 Fax: 503-259-1520 Fire Flow and Hydrant Worksheet This worksheet is required to be submitted to and approved by the Authority Having Jurisdiction(AHJ)before any permits for new building construction, building expansion or fire hydrants will be issued by any building department within the TVF&R District. For assistance completing this form,see the Fire Flow and Hydrant Worksheet Instructions or call the Operating Center nearest you. SECTION 1 -Preparer Information a. Preparer Name: Josh Cabot Date: 6/26/2015 Phone: 503-445-7898 Fax: E-mail: joshc@serapdx.com b. Architect/Engineer of Record: Kurt Schultz Phone: 503-445-7372 Fax:I 1 E-mail: kurts@serapdx.com SECTION 2-General Building Information a. Project Name: Burnham &Ash Apartments-BLDG 1 Project Address: SW Ash Ave& Burnham St City:ITigard County:IWashington Zip: 97223 b. Construction Type: Type IV and V-A C. Total Bldg Area: 135,455 sq ft(as defined by the OSSC) Total Fire Area: 142,132 sq ft(as defined by the OFC) Bldg Fire Flow: 6750 GPM(base amount without adjustment for occupancy hazard classification) d. Describe Fire Area: (if more than one fire area,include an 8 1/2 x 11 or 11 x 17 drawing indicating the various fire areas) A single fire area is proposed contained by the exterior walls. The occupancies do not exceed the OSSC allowable area for Type VA construction. e. Type of Occupancy or Use of Building: IR-2 (Apartments), Accessory B, S-1 & S-2 Page 1 Revised: October 2011 Fire Flow and Hydrant Worksheet(continued) ' SECTION 3-Occupancy Hazard a. Percentage of Occupancy Hazard Classifications (see Worksheet Instructions-tables 1 and 2) Occupancy Hazard Classification Fire Area Total Fire Area Percent of Fire Area Light Hazard 133625 SF / 142,132 SF x 100 = 94.01 % Ordinary Hazard Grp 1 8507 SF / 142,132 SF x 100 = 5.99 % Ordinary Hazard Grp 2 (HPCS I & II) 0 SF / 142,132 SF x 100 = 0 Extra Hazard Grp 1 (HPCS III) 0 SF / 142,132 SF x 100 = 0 % Extra Hazard Grp 2 (HPCS IV& HH) 0 SF / 142,132 SF x 100 = 0 % Total must equal 100% 100 % b. Calculated Fire Flow Occupancy Hazard Classification Factor Fire Area Fire Flow Bldg Fire Flow Light Hazard 0.75 x 94 % x 6750 GPM = 4759 GPM Ordinary Hazard Grp 1 0.85 x 6 % x 6750 GPM = 344 GPM Ordinary Hazard Grp 2 1 x 0 % x 6750 GPM = 0 GPM Extra Hazard Grp 1 1.15 x 0 % x 6750 GPM = 0 GPM Extra Hazard Grp 2 1.25 x 0 % x 6750 GPM = 0 GPM c. Required Fire Flow with Occupancy Hazard Adjustment 5103 GPM SECTION 4-Minimum Number of Fire Hydrants Required Refer to Table C105.1 below(2010 OR Fire Code, Appendix C)for the minimum number of hydrants required. Required Fire Flow: 5103 GPM TABLE C105.1 NUMBER AND DISTRIBUTION OF FIRE HYDRANTS FIRE-FLOW REQUIREMENT MINIMUM NUMBER (gpm) OF HYDRANTS 1,750 or less I 2.000-2,250 2 2,500 3 3.000 3 3,500-4,000 4 4,500-5,00(1 5 ' 5.500 6 6,000 6 6,500-7.000 7 7,500 or more I 8 or more Page 2 Revised: October 2011 Fire Flow and Hydrant Worksheet(continued) SECTION 5-Reduction of Fire Flow Reduced by 75%for an approved automatic sprinkler system, installed in accordance with NFPA 13 or NFPA 13R (choose multiplier 0.25 in Section 6). SECTION 6-Required Fire Flow Fire Flow: 5103 GPM x 0.25 1500 GPM (Min.=1500,Max.=3000) SECTION 7-Available Fire Flow to the Building Manually enter available fire flow here. Please attach documentation of the flow test that was conducted. It must include date, time and location of static/residual and flow hydrants, as well as the tester's name, phone number and address. Test Results: 1500 GPM Page 3 Revised: October 2011 HYDRANT FLOW REQUEST FORM fa PROJECT: TIGARD FIRE STATION ADDRESS: 8935 SW BURNHAM ST TIGARD OR CROSS STREET: FLOW HYDRANT LOCATION: NE CORNER OF FIRE STATION STATIC: 104 RESIDUAL: 92 GPM: 1610 @ 20 PSI = 12,112 GPM DATED: 09.18.14 12:30 PM MONITOR HYDRANT LOCATION: NW CORNER OF FIRE STATION STATIC: 104 RESIDUAL: 102 GPM: DATED: 09.18.14 . • ' . .. . .. , . / / / J 49,65, 02A0222 02A0221---- — ----------------6" DIP it Monitor H /ydrant \ • FIowHydrmt A, • / / / / / / ' // , / 02• I 0;02A0209 / r 7 , \ 02A0218f 02A02 '`s N a /134 02A 07 s'ir / 7 vr- 8_935) 0 02A0214 0210 02A02174:96, \\CI ......,3 \ •50`, t.S1 7 ..../' O., /4 \ Feet 0 63 WIES1111111 4\ HYDRANT FLOW REQUEST FORM PROJECT: TIGARD FIRE STATION ADDRESS: 8935 SW BURNHAM ST TIGARD OR CROSS STREET: FLOW HYDRANT LOCATION: NE CORNER OF FIRE STATION STATIC: 104 RESIDUAL: 92 GPM: 1610 @20 PSI = 12,112 GPM DATED: 09.18.14 12:30 PM MONITOR HYDRANT LOCATION: NW CORNER OF FIRE STATION STATIC: 104 RESIDUAL: 102 GPM: DATED: 09.18.14 Fire Marshal's Offices r North Division South Division East Division f 4755 SW Griffith Dr. 7401 SW Washo Court 320 Warner Milne Rd • ' I h` f Beaverton, OR 97076 Tualatin, OR 97062 PO Box 351 (503)526-2469 (503)612-7000 Oregon City, OR 97045 Fax (503)526-2538 Fax (503)612-7003 (503)652-1365 Fax (503)657-791 Page 1 oft Building Survey Report FMZ : (to be filled out by TVF&R) Code Edition: 2014 OSSC / 201 1:*-0,,. Name of Facility: Burnham & Ash Apartments /11.0 Name of Building: Buildinif2 C> 'Y _ -29/5 Address: 12900 SW Ash Avenuevi-��<D/ f l�4.9/04, Tia Owner:Premium Property - T[gard LLC Telephone No. ( 503) 226-1972 Architect: SERA Desn and Architectures Inc. Telephone No. ( 503) 445-7898 Architect Address: 338 NW 5th Avenue, Portland, OR 97209 ITEM COMM DESCRIPTION 1. Occupancy Type M, R-2, S-2 Use Multi-Family Capacity 26 Units • 2. Construction Type Type VA Construction - Fully Sprinklered Year Built 3. Area(Sq.Ft.) Total 38,192 SF Largest Floor 11,931 SF Basement No 4. Stories No. 4 stories Height 45'-0" High Rise ElY ©N 5 a. Exterior Wall Construction Wood-Framed with Brick/Fiber Cement Cladding, 1 HR Fire Rating from unit interior where more than 10'-0"from property line b. Opening Protection As required by code, based on proximity to property line and percentage by facade-please see drawings 6. Interior Wall Construction Wood-Framed, 1HR demising walls, 1/2HR corridor walls,corridor enclosures rated for smoke 7. Floor Construction Gyperete over plywood sheathing and wood TJI joists/beams in units, gyperete over sheating and 3"car decking in corridors, car decking at roof decks 8. Roof Construction Wooden roof trusses with fire-rated plywood sheating, rigid polyiso insulation and TPO roof membrane 9. Attic Draft Stops No. 5/8" Plywood 10a. Occ.Sep.Wall Construction No. 1 Hour w/sprinkler system-see assembly 63 b. Opening Protection Penetrations sealed to resist passage of smoke and fire 11a. Area Sep.Wall Construction No. b. Opening Protection 12a. Smoke Barrier Wall Construction No.No separate smoke bar4r assembly b. Opening Protection 13a. Corridor Wall Construction 1/2HR Fire Rated, 2x6 stud wall with plywood sheathing for shear, (1) layer cf 5/8"GWB over resilient channel on one side, (2) layers 5/8"GWB other side b. Opening Protection 20min rated doors at corridor walls TYP 14a. Corridor Ceiling Construction Rated for smoke with(1) layer of 5/8"GWB suspended from structure above b. Opening Protection Penetrations sealed to resist passage of smoke 15a. Shafts No. Type 2HR Rated b. Opening Protection 90min rated openings into shafts and terminating rooms: i.e. ground floor trash room Building Survey Report FMZ : (to be filled out by TVF&R) Name of Facility: Burnham & Ash Apartments ITEM COMM. DESCRIPTION 16a. Stair Enclosure No. 2 2HR Rated b. Opening Protection 17: Stairs No. • 18. Ramps` .• No. 19. Interior Finish Class Room C Corridor C Exit Enclosure C 20. -. Exits No. Total Width See drawing sheets G004-G006 21. Exit Hardware Type See drawing sheet A911 22a. Exit Signs/Illumination See drawing sheets G004-G006 b. Emergency Lighting 23. Auto Sprinkler Coverage Fully sprinklered, FDC located at ground floor water room (Room#107)fronting Ash Court R.O.W. 24. Standpipe Class/Locations Located at Stairs 1 E and 1W 25. Fire Alarm Type/Coverage TBD 26. Heating,Ventilation&Air Conditioning Type TBD Fuel 27. Electrical Installation TBD 28. Stage/Platform N/A 29. Hazardous Area N/A 30. Other Comments: Alternate Materials&Methods TVF&R Use Only Inspected By: Date No.Attachments Reviewed By: I Date Updated i , • Fire Marshal's Offices 11 North Division South Division East Division l• 4755 SW Griffith Dr. 7401 SW Washo Court 320 Warner Milne Rd Beaverton, OR 97076 Tualatin, OR 97062 PO Box 351 (503)526-2469 (503)612-7000 Oregon City, OR 97045 Fax (503)526-2538 Fax (503)612-7003 (503)652-1365 Fax (503)657-791 Page 1 of 2 Building Survey Report FMZ : (to be filled out by TVF&R) Code Edition: 2014 OSSC / 20111_6 .C Name of Facility: Burnham & Ash Apartments 'V Buildin 1 JUNG Name of Building: 2_01/5 Address: 12800 SW Ash Avenue BUILD] TIO ;:I}_ Owner:Premium Property - Ti_gard LLC Telephone No. ( 503) 226-1972 Architect: SERA Design and Architecture, Inc. Telephone No. ( 503) 445-7898 Architect Address: 338 NW 5th Avenue, Portland, OR 97209 ITEM COMM DESCRIPTION 1. Occupancy Type A-3, B, R-2, S-2 IUse Multi-Family Capacity 139 Units 2. Construction Type Type VA Construction - Fully Sprinklered Year Built 3. Area(Sq.Ft.) Total 142,132 SF Largest Floor35,534 SF Basement No 4. Stories No. 4 stories Height 45'-0" High Rise ElY ®N 5 a. Exterior Wall Construction Wood-Framed with Brick/Fiber Cement Cladding, 1 HR Fire Rating from unit interior where more than 10'-0"from property line b. Opening Protection As required by code, based on proximity to property line and percentage by facade-please see drawings 6. Interior Wall Construction Wood-Framed, 1 HR demising walls, 1/2HR corridor walls, corridor enclosures rated for smoke 7. Floor Construction Gyperete over plywood sheathing and wood TJI joists/beams in units, gyperete over sheating and 3"car deckingin corridors, car deckinq at roof decks 8. Roof Construction Wooden roof trusses with fire-raed plywood sheating, rigid polyiso insulation and TPO roof membrane 9. Attic Draft Stops No. 5/8" Plywood 10a. Occ.Sep.Wall Construction No.1 Hour w/sprinker system-see assembly 63 b. Opening Protection Penetrations sealed to resist passage of smoke and fire 1 la. Area Sep.Wall Construction No. b. Opening Protection 12a. Smoke Barrier Wall Construction No. b. Opening Protection 13a. Corridor Wall Construction 1/2HR Fire Rated, 2x6 stud wall with plywood sheathing for shear, (1) layer o' 5/8"GWB over resilient channel on one side, (2) layers 5/8"GWB other side b. Opening Protection 20min rated doors at corridor walls TYP 14a. Corridor Ceiling Construction Rated for smoke with(1) layer of 5/8"GWB suspended from structure above b. Opening Protection Penetrations sealed to resist passage of smoke 15a. Shafts No. 5 IType 2HR Rated b. Opening Protection 90min rated openings into shafts and terminating rooms: i.e.ground floor trash room Building Survey Report FMZ : (to be filled out by TVF&R) Name of Facility: Burnham & Ash Apartments ITEM COMM. DESCRIPTION 16a. Stair Enclosure No. 3 I 2HR Rated b. Opening Protection 17. Stairs No. 18. Ramps No. 19. Interior Finish Class • Room C Corridor C Exit Enclosure C 20. Exits No. Total Width See drawing sheets G004-G006 21. Exit Hardware Type See drawing sheet A91 1 22a. Exit Signs/Illumination See drawing sheets G004-G006 b. Emergency Lighting 23. Auto Sprinkler Coverage Fully sprinklered, FDC located at ground floor water room (Room#107)fronting Ash Court R.O.W. 24. Standpipe Class/Locations Located at Stairs 1 E and 1W 25. Fire Alarm Type/Coverage TBD 26. Heating,Ventilation&Air Conditioning Type TBD Fuel 27. Electrical Installation TBD 28. Stage/Platform N/A 29. Hazardous Area N/A 30. Other Comments: In tandem with Building 1,there will be a separate structure housing (8) individual private garages for tenants. 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