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7650 S.W.Beveland St. .
TM RIPPEY Tigard,Oregon 97223 : 2 9 ?r�2
Phone: (503)443-3900
...,, CONSULTING ENGINEERS Fax: 503 443-3700
STRUCTURAL CALCULATIONS
PROJECT: HUNTER-DAVISSON-EDWARD JONES
LOCATION: 12162 SW SCHOLLS FERRY RD.
TIGARD,OR
CLIENT: HUNTER-DAVISSON
DATE: JANUARY 21,2020
PROJECT NUMBER: 20003.02
PROJECT DESCRIPTION:
PROVIDE DETAILS AND CALCULATION FOR THE ANCHORAGE OF(1)REPLACEMENT
ROOFTOP AT THE ADDRESS ABOVE.
TABLE OF CONTENTS:
ITEM SHEET NUMBER
GENERAL NOTES N1
SITE PLAN SP1
DETAILS SK1-SK2
CALCULATIONS Cl-.C3
fi� f'gV
4'.;xkf 167
VALIDITY OF PERMIT
THE ISSUANCE OF A PERMITp Aq?
�,�,
BASED ON CONSTRUCTION ••..,� !'
DOCUMENTS AND OTHER f•;
DATA SHALL NOT PREVENT �_�,_,I�F,_; ..I„
THE CODE OFFICIAL FROM
REOFiER ORS. O CORRECTION C 105.4
GENERAL STRUCTURAL NOTES
CODE REQUIREMENTS:
CONFORM TO THE 2018 INTERNATIONAL BUILDING CODE AS AMENDED BY THE 2019 OREGON STRUCTURAL SPECIALTY
CODE,REFERENCED HEREAFTER AS IBC.
DESIGN CRITERIA:
ANALYSIS OF THE EXISTING STRUCTURE FOR GRAVITY LOADS IS NOT IN THE SCOPE OF CALCULATIONS. THE FOLLOWING
LOADS WERE USED FOR ANCHORAGE DESIGN:
ROOFTOP UNIT(UNIT+CURB ADAPTER):415 LBS(48VL-C360605)
BASIC WIND SPEED(3-SEC GUST,ULTIMATE):97 MPH
WIND EXPOSURE:B
SEISMIC IMPORTANCE FACTOR Ie: 1.0
SITE CLASS:D(ASSUMED)
SDS=0.685
EXISTING CONDITIONS:
THE CONTRACTOR SHALL FIELD VERIFY ALL EXISTING CONDITIONS,DIMENSIONS AND ELEVATIONS. THE CONTRACTOR
SHALL NOTIFY THE ARCHITECT/ENGINEER OF ANY DISCREPANCIES FROM CONDITIONS SHOWN ON THE DRAWINGS PRIOR
TO THE START OF THE WORK.
TEMPORARY CONDITIONS:
THE CONTRACTOR SHALL BE RESPONSIBLE FOR STRUCTURAL STABILITY OF THE NEW AND EXISTING STRUCTURES AND
WALLS DURING CONSTRUCTION. THE STRUCTURE SHOWN ON THE DRAWINGS HAS BEEN DESIGNED FOR STABILITY
UNDER THE FINAL CONFIGURATION ONLY.
CARPENTRY:
SAWN LUMBER DESIGN IS BASED ON THE NATIONAL DESIGN SPECIFICATION,LATEST EDITION. SAWN LUMBER SHALL
CONFORM TO WEST COAST LUMBER INSPECTION BUREAU OR WESTERN WOOD PRODUCTS ASSOCIATION GRADING RULES.
UNLESS NOTED OTHERWISE ALL LUMBER SHALL BE 19%AT TIME OF FABRICATION AND DRIED TO A MAXIMUM OF 15%
BEFORE INSTALLATION OF GYP.BOARD AND VERIFIED BY THE GENERAL CONTRACTOR. GRADES SHALL BE AS FOLLOWS
UNLESS NOTED OTHERWISE ON THE PLANS: r
FRAMING ELEMENT SPECIES&GRADE
POSTS AND BEAMS 4x OR SMALLER D.F.#2 OR BETTER
PLATES AND SILLS D.F.#3 OR BETTER(KILN-DRIED)
BLOCKING D.F.STANDARD OR BETTER
FRAMING ACCESSORIES AND STRUCTURAL FASTENERS SHALL BE MANUFACTURED BY SIMPSON STRONG-TIE COMPANY
(OR ENGINEER APPROVED EQUAL)AND OF THE SIZE AND TYPE SHOWN ON THE DRAWINGS AND ATTACHED PER
MANUFACTURER'S REQUIREMENTS AND RECOMMENDATIONS UNLESS NOTED OTHERWISE. HANGERS NOT SHOWN SHALL
BE SIMPSON HU OF SIZE RECOMMENDED FOR MEMBER. ALL FRAMING NAILS SHALL BE COMMON NAILS. NO BOX NAILS
ALLOWED. FASTENERS AND ACCESSORIES IN CONTACT WITH PRESERVATIVE TREATED WOOD MUST BE HOT DIPPED
GALVANIZED OR HAVE ZMAX COATING. ALL FASTENERS IN CONTACT WITH FIRE RETARDANT LUMBER MUST BE HOT-
DIPPED GALVANIZED. DO NOT INSTALL 0.148"x 1 1/2"NAILS IN HANGERS UNLESS SPECIFICALLY NOTED ON THE K.,
DETAILS. Pr .
TM RIPPEY €�r �
.t Y 1 r1 Consulting Engineers By: KJ "'T7aTt "'`
7650 SW Beveland Street HUNTER-DAVISSON Chic By: Date:
Suite 100 12162 SW SCHOLLS FERRY
Tigard,Oregon 97223 Job#: 20003.02
Phone:(503)443-3900 Sheet: NI Of:
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ADDRESS: 12162 SW SCROLLS FERRY RD. RTU-1 (3T UNIT)
TIGARD, OR 97223 MODEL: 48VL-C360605
UNIT WGT: 349 LBS. A
CURB WGT: 66 LBS.
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�/ NOTES: ALL FLASHING AND WATERPROOFING BY OTHERS. i +. ' ,A cY':'•ar
- EXACT LOCATION PER MECHANICAL DRAWINGS. �, 1 ``•�"+`
(E) 2x6 MIN. FLAT
BLOCK ALIGNED
W/ EDGE OF (E) /V
CURB, TYP.
SLOT (E) PLYWOOD TO (E)ATTACH
INSTALL TENSION STRAP. CUR,B TO (E)
LOCATE (2) STRAPS PLYWOOD WITH'SIMPSON 'A35'
CLIPS. " PAN HEAD
EACH LONG SIDE SCREWS(6)INTO#6x1/2 PLYWOOD AND
MINIMUM OF 2' 0"APART. (6) CO SMS SCREWS INTO
CURB. (1) EACH SIDE. (4) TOTAL.
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RTU (BY OTHERS).
APPROXIMATE LOCATION OF (E) 36" OPEN WEB
DUCTS SHOWN. VERIFY EDGE WOOD CHORD TRUSSES
ALIGN WITH (E)TRUSSES. @ 2' 8"O/C, TYP.
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ROOF FRAMING PLAN VIEW
SKI
11V1 RIPPEY BY KJ DATE
CONSUMING ENGINEERS HUNTER-DAVISSON EDWARD JONES CHKBY DATE
7650 S,W. Beveland St,Suite 100 12162 SW SCHOLLS Joa No 20003.02
Tigard,Oregon 97223
Phone (S03) 443-3900 --- SHEET SK1 OF
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CLIP
LOCATION, TYP. 3E,t
NEW RTLI
EQ. SPACEID
PLAN NEW MECH. soTN TYP.UNIT. 'IC RIF(
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16 GA.CLIP
N.T.s.
16 GA.CLIP W/(8)#10x3/4"
GALVANIZED TEK SCREWS,
- ----------
(4)CLIPS REQ'D.SEE 1 '
DETAIL"A"(PLAN VIEW)
FOR CLIP LOCATION.
IV
NEW CURB ADAPTOR
#12 x 3"GALVANIZED TEK \ , (DESIGN BY OTHERS)
SCREWS @ 2'-0"0/C.AND
6"FROM ENDS.(4)MIN.
PER SIDE,TYP. 1 .
EXISTING CURB
- TO REMAIN.
FLASHING AND INSULATION
NOT SHOWN FOR CLARITY. SIMPSON'LSTA9'WITH(3)#10
SCREWS TO(E)CURB AND(3)
CHORTOP1 1/2"NAILS (E)JOIST
CHOR .CHORD,D WRAP STRAP PERAAROUND PLAN.(E)
(E)ROOF SHEATHING.
(E)CURB CENTERED(E)
STRUCTURAL MEMBER.
SLOT ROOF SHT'G AT STRAPS.
DO NOT OVERCUT.
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7650 SW Beveland,Suite 100
Tigard,Oregon 97223 12162 SW SCROLLS JOB NO 20003.02
Phone:(503)443-3900
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CONSULTING ENGINEERS
CHK BY DATE
7650 S.W.Bevel and St,Suite 100
JOB No
Tigard,Oregon 97223 2(�i1+��•p2
Phone(503) 443-3900 SHEET eA of
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Wind and Seismic Loads on Mechanical Unit
Worksheet Calculates the wind and seismic forces for a rooftop mounted mechanical unit based
on the ASCE 7-16.Hold down forces are calculated based on 0.6D+(0.6W or 0.7E) load cases.
Wind and Seismic Loads on Mechanical Unit
Windspeed:= 97mph
Exposure:_ "B"
Vasd 1111
o" (Is wind speed ASD?)
Seismic Parameters
SDS:_ .685
ap := 2.5
:= 6.0 RP
IE:= 1.0
Building Dimensions
Category:= "II"
Roof Elevation:= 25ft Building_Width:= 80ft Building_Depth:= 40ft
Mechanical Unit Dimensions
Displacement:_ 'Tan Unit" 3 T Unit
Weight:= 4151b
UnitHeight := 51.75in
Width:= 32.625in
Length:= 48in
Curb:= 23in
Curb Width:= 30.375in (Dimension for Calculating Overturning Uplift)
SUMMARY(ALL VALUES AREASD) Method Used= "ASCE 7-16-Section 29.5.1"
D=415 lb " WWindUpliftASD= 146 lb
Displacement= "Fan Unit" 1 (From ACSE 29.5-3)
Q, EASD=991b
hscismic=4.073 ft ib WWindASD =4231b
(From ACSE 29.5-2)
h 3.115ft X=2,531ft
Wind=
TWindTotalASD =470 lb
Notes: TseismicASD=36 lb
1.Positive sign convention shoran.Negative values indicate opposite direction
2.X equals the width between attachment points for overturning Elf
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. TMIIIPPEY BY S 1W1 V DATE1/2P/2,020
CONSULTING ENGINEERS -HUNTERDAVISSON - EDWARD JONES• • _ CHlC BY DATE
7.650 S.W. Bevel and St, Suite 100 12162 SW SCHOLLS JOB NO 20003.02
Tigard, Oregon 97223 /'
Phone(503)443-3900 SHEET '_ OF
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RE SIGNS
MATERIAL:18 ga.GAL STEEL REV. ECOt DESCRIPTION DATE APPROVED
Attn: L.VL 1 INITIAL DRAWING 2/14/IS CKK
1 112"ADDED TO EXISTING CURB O.D. ;T-
1"DUCT INSULATION(R VALUE 3.65) Tag:
GASKET PROVIDED 1MTN CURB ►�� i
Approval:'.I1 1 TP' L.'I� 1N AIR
TURN
33 13l18"
DNI,
21/4"+ Ir ..1 h-21/4" I ��
'f SUPPLY
a "y� , Rib
AIR
17 5/6" 45 15ti6" �F
43 11/16"
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INSULATED
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18 5/16" RETURN SUPPLY
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30 5/8
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CURB SHOWN IS CDI STANDARD CONFIGURATION CDI RESERVES THE RIGHT TO CHANGE I TRIBUTION INC ....n.,m' ems i5 °"`"`W`
LAYOUT WITHOUT NOTIFICATION.IF CURB IS NEEDED IN A DIFFERENT CONFIGURATION APPROVAL Of MYSTST.imTnl611,w..wc. °^'" 1-4015-4021-FULL ADAPTER
CDI MUST BE NOTIFIED PRIOR TO PLACING AN ORDER. A«"""'Ps RESERVED0161EKSPMS OM.O w,.o a,A..Oa.n.1
OPERATIONAL HEIGHT OF CDI ADAPTER IS 3"LESS THAN OVERALL CURB HEIGHT es
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.,CJRES CURB_ADAPYGR S11-XXXX-XXXX_CUR6fDAPTERS/14XXX-XXXX_CARRIER1