Loading...
Plans (103) RECEIVED CT ENGINEERING INC AUG 3 2017 180 Nickerson St. CITY OF TIGARD Suite 302 BUILDING DIVISION Seattle,WA 98109 (206)285-4512(V) (206)285-0618(F) asolomon@ctengineering.com BULLETIN Date: July 27,2017 Number: CT-30 Project#: 15238 Project Name: River Terrace SF Attached: CT-30.1 to CT-30.3 Subject: Lot 8 (Plan 7B(R))—Added deck Drawings Affected: Description/Action: This bulletin provides response to RFI, design clarifications and/or variation requests for the `River Terrace SF' project located in Tigard, Oregon. Per attached plan and structural calculations, see added deck framing layout for Lot 8 (Plan 7B(R)) as requested by the Owner. PR° 14 • ,�F.��G N4,0 CITY OF TIGARD `� so • IE ED FOR CODE COMPLTANC 44: REV Approved: I OTC: [ EG��� Permit#: 1y11'j �a 1 C $a 3 22, F Address: ) 3 C�� b6,sh ,,.�.1 s,r ✓ �P�FS T. �FZ�� Suite#: 07/27/2017 B ` T j Date: •C-a CALL WITH ANY QUESTIONS Issued by: Arnold R. Solomon Date: July 27, 2017 Distribution: Contact Information: Chris Walther Polygon Northwest Company Alexia Fukui Milbrandt Architects R:\15238 River Terrace SF\Bulletins\15238_2017.07.27_CT3O_Lot 8(Plan 7B(R))-Added Deck.doc Structural Engineers elr' RIVER TERRACE SF: LOT 8 (PLAN 7B(R)) CT-30.1 22'_0" + 3'-10)x2 16'-3" 1'-10)x 1. 9 51.2 Pte_ (11J12, D14 3x1Yz BLOCK OUT e I SIHD14 ®STEM WALL TYP- I '^ 31fi" CONC. SLAB I OVER 4"FREE DRAINAGE MATERIAL I 14"I OVER COMPACTED FILL i 4—- .i 44ii—` Te w a VERIFY GARAGE SLAB HEIGHT Io: o r1 WITH GRADING PLAN © I�LF = N N NO W N 6 N I 'T oLL 6 w 2x10 D1 I,N V ' w Z Z N 640 IS'-1 lY2 I6'-0Y" '18'.. Io_..s a I 2 1 L-- t (7 11.v, F,, a'-o I-- I I B �I I I© ,�8x4-1� ABOVE I I n VARIES: MIN. 10 o L -3"FROM TOP OF 6.0 DIM. I ;7,6'z 1 I o,w —II ISTEM WALL 'oa d� P EM I IK 49 I HD744-- P4--11�" L111-- f E Up I 1— Z ---- B17 �,I(V STHD14 e 18x24 RAWL 2x4 PONY WALL I Iii(/" Y4 I SPACE CCESf'1 : AT HIGH FON. ►r I..._,..,--FIXTURE ABOVE I 6 3 '"IN. "d -."Z���`.. 18"x36"x10"FOOTING I� (2)#'4.(3)#4 di -214" 1 I. I'' :, m 'h _ N ENTIRE ENTIRE O pg SIDE P6 i I I I _t ia"x 91¢"LVt I' • O SIDE I P LI — I I®.Z CENTER U/WALL 0 I• . .—J 9•-8Y4" 14 ` 170 Iii-4 7 I 30"x30"x10" 1 660 7 to S6 56.0 I FOOTING W/ FINISHED FLOOR 56.0 n ® (3)#4 EA. WAY I AT+0'-0" I 1 I "i ••• PLAN 7B(R) FOUNDATION PLAN 1/4"-1'-0" AMERICAN MODERN 111 VER TERRACE SF: LOT 8 (PLAN 7B(R)) Title: Job# �� Dsgnr: Date: 3:59PM, 27 JUL 17CT-30.2 Description: Scope: Timber Beam & Joist Page 1 lot 8(plan 7b(r))_added deck_ct-30 bulletin. Description ADDED DECK(LOT 8- PLAN 7B(R)) Timber Member Information B1 B2 B3 Timber Section 2x8 4x8 2x8 Beam Width in 1.500 3.500 1.500 Beam Depth in 7.250 7.250 7.250 Le:Unbraced Length ft 0.00 0.00 0.00 Timber Grade Hem Fir,No.2 Douglas Fir- Hem Fir,No.2 Larch,No.2 Fb-Basic Allow psi 850.0 900.0 850.0 Fv-Basic Allow psi 150.0 180.0 150.0 Elastic Modulus ksi 1,300.0 1,600.0 1,300.0 Load Duration Factor 1.000 1.000 1.000 Member Type Sawn Sawn Sawn Repetitive Status Repetitive No No Center Span Data Span ft 4.00 9.00 4.00 Dead Load #/ft 13.00 20.00 7.00 Live Load #/ft 80.00 120.00 40.00 Dead Load #/ft 15.00 Live Load #/ft 90.00 Start ft End ft 4.000 Cantilever Span Span ft 3.00 Uniform Dead Load #/ft 20.00 Uniform Live Load #/ft 120.00 Results Ratio= 0.1448 0.4592 0.2722 Mmax @ Center in-k 2.23 16.47 3.65 @ X= ft 2.00 4.43 2.00 Mmax @ Cantilever in-k 0.00 -7.56 0.00 fb:Actual psi 169.9 537.3 277.6 Fb:Allowable psi 1,173.0 1,170.0 1,020.0 Bending OK Bending OK Bending OK fv:Actual psi 18.1 36.6 29.5 Fv:Allowable psi 150.0 180.0 150.0 Shear OK Shear OK Shear OK Reactions @ Left End DL lbs 26.00 80.00 44.00 LL lbs 160.00 540.00 260.00 Max.DL+LL lbs 186.00 620.00 304.00 @ Right End DL lbs 26.00 160.00 44.00 LL lbs 160.00 960.00 260.00 Max.DL+LL lbs 186.00 1,120.00 304.00 Deflections Ratio OK Deflection OK Deflection OK Center DL Defl in -0.001 -0.012 -0.002 L/Defl Ratio 39,696.7 8,845.6 23,457.1 Center LL Defl in -0.007 -0.100 -0.012 L/Defl Ratio 6,450.7 1,084.2 3,969.7 Center Total Defl in -0.009 -0.112 -0.014 Location ft 2.000 4.464 2.000 L/Defl Ratio 5,549.0 966.1 3,395.1 CT-30.2a Title: Job# ER TERRACE SF: LOT 8 (PLAN 7B(R)) Dsgnr: Date: 3:59PM, 27 JUL 17 Description: Scope: Timber Beam & Joist Page 2 lot 8(plan 7b(r)) added deck et-30 bulletin. Description ADDED DECK(LOT 8-PLAN 7B(R)) Cantilever DL Defl in 0.008 Cantilever LL Defl in 0.047 Total Cant.Defl in 0.055 L/Defl Ratio 1,304.6 Title: Job# CT-30.3 RIVER TERRACE SF: LOT 8 (PLAN 7B(R)) Dsgnr: Date: 4:03PM, 27 JUL 17 Description: Scope: Page 1 Square Footing Design lot 8(plan 7b(r))_addeddeck_ct-3o bulletin. Description TYP FTG General Information Dead Load 0.200 k Footing Dimension 1.500 ft Live Load 1.000 k Thickness 10.00 in Short Term Load 0.000 k #of Bars 2 Bar Size 4 Seismic Zone 3 Rebar Cover 3.250 Overburden Weight 0.000 psf f c 2,500.0 psi Concrete Weight 150.00 pcf FY 60,000.0 psi LL&ST Act Separately Load Duration Factor 1.000 Column Dimension 5.50 in Allowable Soil Bearing 2,000.00 psf Reinforcing Rebar Requirement Actual Rebar"d"depth used 6.500 in As to USE per foot of Width 0.216 in2 200/Fy 0.0033 Total As Req'd 0.324 in2 As Req'd by Analysis 0.0000 in2 Min Allow%Reinf 0.0014 Min.Reinf%to Req'd 0.0014% Summary Footing OK 1.50ft square x 10.0in thick with 2-#4 bars Max.Static Soil Pressure 658.33 psf Vu:Actual One-Way 0.00 psi Allow Static Soil Pressure 2,000.00 psf Vn*Phi:Allow One-Way 85.00 psi Max.Short Term Soil Pressure 213.89 psf Vu:Actual Two-Way 4.23 psi Allow Short Term Soil Pressure 2,000.00 psf Vn*Phi:Allow Two-Way 170.00 psi Alternate Rebar Selections... Mu :Actual 0.14 k-ft/ft 2 #4's 2 #5's 1 #6's Mn*Phi:Capacity 7.42 k-ft/ft 1 #7's 1 #8's 1 #9's 1 #10's