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a /./ _ , 4/ FE -.- LIABILITY: The City of Tigard, Oregon, or
its employees, shall not be responsible for
9\■ discrepancies which may appear hereon. •-
N APPROVED FOR CONSTRUCTION
CITY OF TIGARD
PERMIT NO _ _QOD'A- -oed21 DRESS 1 7`l0 S•+i i ' e.,, 6,7
•
BY _ DATE
._ -___
I.644 l rg- 213
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Structural Calculations
for
Miscellaneous Framing and Partial Lateral
New Roof Canopy Addition Only
Kovac Residence 9740 SW Riverwood Ln
Tigard, OR
Prepared for
Ralph Gomez Construction
LEI JOB NUMBER 2361
***Limitations***
Engineer was retained in limited capacity for this project. Design is based upon information
provided by the client, who is solely responsible for the accuracy of same. No responsibility and/or
liability is assumed by, or is to be assigned to the engineer for items beyond that shown on these
sheets. t Q- sheets total including this cover sheet.
��,_PROFF
�G G 4' Q�
14 12, .!.
cc
OREGON rb
15, r' tS
^/ J. ENS
E..1cf 3iVP6C 1
This Packet of Calculations is Null and Void if Signature above is not Original
Lee Engineering, Inc.
1300 John Adams St.
Oregon City, OR 97045
(503) 655 -1342 Fax (503) 655 -1360
FT = ft LB =1b K := 1000•LB IN := .0833333•FT K K
KSF := — KLF :_ — KSI :=
FT2 FT IN
PSI := KSI•.00I PSF := KSF•.001 KFT := K•FT E 29000•PSI PLF := KLF•.001
DESIGN CRITERIA
DESIGN CODE : 1997 UBC SBP : 1500 PSF (ASSUMED)
ROOF LL : 25PSF + DRIFTING ALLOWANCE EFP : 35 PCF (RET'G WALLS)
WIND DESIGN : VELOCITY = 80 MPH, EXPOSURE B
SEISMIC ZONE : 3
ROOF DEAD LOAD RFR := 3•PSF FRAMING
RPL := 2•PSF PLYWOOD
RRF := 6•PSF ROOFING
RME := 2•PSF MECH & ELECT
RMS := 2•PSF MISC
RCG := 0•PSF CEILING
RIN := 0•PSF INSULATION
ROOF DEAD LOAD RDL := RFR + RPL + RRF + RME + RMS + RCG + RIN
RDL = 15 .PSF
ROOF LIVE LOAD RLL := 25•PSF
ROOF TOTAL LOAD RTL := RDL + RLL RTL = 40.PSF
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
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LEE ENGINEERING, INC. (0 z \
MADE BY �� DATE SHT NO
1300 JOHN ADAMS ST. CLIENT C.v4Mf� FILE NO
OREGON CITY, OR 97045
(503) 655 -1342 FAX (503) 655 -1360 PROJECT ►JAG Pr-tiro' r ..j
1
PT := IL LB := IM K := 1000•LB IN :_ .0833333•FT KFT := K•FT
' K K K I.13 LB
KLF :_ -K KSI :_ — KSF := — PSI :_ — PSF :_ — E := 1600•KSI
FT IN 2 FT IN FT
WOOD JOIST DESIGN Fb := 0.875•KSI.1.2.1.15.1.15 Fv := 0.095•KSI.1.15 L := 10 FT
i
FDL := 0•PSF FLL := 0•PSF FTRIB := 0•FT W fdl := FDL•FTRIB W flu := FLL•FTRIB
RDL := 19.2•PSF RLL := 25•PSF TRIB := 2•FT W rdi RDL•TRIB W ruu := RLL-TRIB
Wdl`= Wrdl1- Wfdl P =0.0•K P 0.00•K P =P P =0°K
W 11' W rill W fll M addl := 0•KFT V add! := 0•.K
2
a: =OFT b: =OFT M D ' = Wd1L W t!• = W dl + W t1= 0.0880KLF
8
W t 1•L 2 P T •a•(b) W t 1•L P T •b
M t1 :_ + + M addl M ti = 1.105 .KFT R :_ + + V addl R = 0.442.K
8 L 2 L
M tltl
S REQD • Fb REQD RE D = 9.549 °IN
V:= R- Wt1.7.25•IN A RE D V 3 2
Q A R EQD =5.3350IN 2
TRY 2 X S = 13.1 A = 10.8 I := 47.6•IN
CHECK DEFLECTIONS
M tl •8 5•W t u•L 4
EQUIV UNIF TOTAL LOAD = W t1 := L2
DEFL ti 384 E I DEFL = 0.26116103 .IN
M D •8 5•W dl•L
EQUIV UNIF DEAD LOAD = W dl := DEFL dl :_
L 2 384•E•I DEFL du = 0.11344551 SIN
DEFL 11 := DEFL t! - DEFL d! DEFL 11 = 0.14771551 .IN
ALLOW DEFL (LIVE LOAD) = L = 0.4 .IN OKAY
300
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page 3
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
FT := IL LB := 1M K := 1000-LB IN := .0833333 -FT KFT := K•FT
KLF := K KSI := K KSF := K PSI := LB PSF LB E := 1600 KSI —
FT IN FT IN FT
WOOD BEAM DESIGN Fb := 0.875•KSI.1.1.1.15•I.0 Fv := 0.095•KSI.1.15 L := 10 DiJILI
l
FDL := 0•PSF FLL := 0•PSF FTRIB := 0-FT W fdi := FDL•FTRIB W fi := FLL•FTRIB
RDL := 19.2•PSF RLL := 25•PSF TRIB := 7.5-FT W rdl := RDL•TRIB W rit := RLL-TRIB
Wdl:= Wrdl+Wfdl P =0.0•K P 0.00•K PT: =PD +PL P =O ^K
W 11 := W rll +W fll
M addl := 0•KFT V addl := 04(
2
M : =Wd1L W tl = W dl + Wt1=
W tI •L 2 P T •a•(b) W t l•L P T •b
M t1 •_ + + M addl M ti = 4.144 oKFT R :_ + + V addl R = 1.657.K
8 L 2 L
M tltl
S REQD :
Q Fb REQD RE D = 44.924 =IN
V:= R- W A ID D _ V 3 ARE D=18.49�IN
Q Fv 2 Q
TRY 4 X 12 S = 73.8 A =39.4 I:= 415.3•IN
CHECK DEFLECTIONS
M t 1.8 5•W t1•L
EQUIV UNIF TOTAL LOAD = W tl := L DEFL ti 384•E•I DEFL t 1 = 0.112249564N
M D.8 5•W d1.1 4 EQUIV UNIF DEAD LOAD = W dl := L2 DEFL d1 384 E I DEFL d1 = 0.04875999.IN
• DEFL 11 := DEFL t1 - DEFL dl DEFL 11 = 0.06348957 .IN
ALLOW DEFL (LIVE LOAD) = K = 0.4oIN OKAY
300
LEE ENGINEERING, INC. /�_
client: RALPH GOMEZ CONSTRUCTION page 4
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
FT := I L LB := 1M K := 1000•LB IN := .0833333 .FT KFT := K•FT
KLF := I L KSI := I L KSF := K PSI := — LB PSF := L E := 1600•KSI
FT IN Z FT IN FT
WOOD BEAM DESIGN Fb := 0.875•KSI.1.1.1.15.1.0 Fv := 0.095•KSI•1.15 L := 10 FT
FDL := 0•PSF FLL := 0•PSF FTRIB := 0•FT W fdl := FDL•FTRIB W flu := FLL•FTRIB
RDL := 19.2•PSF RLL := 25•PSF TRIB := 10•FT W rdl := RDL•TRIB W rll := RLL•TRIB
WdI: =Wrdl+Wfdl P =0.0•K P 0.00•K P =P P =O °K
W 11 := W rill W flI
M addl 0 KFT V addl := 0•K
z
W
M D := 8
a := 0•FT b := 0•FT W tl := W dl + W 11 W t1 = 0.442 oKLF
8
W tl• P T •a•(b ) W tl'L P T •b
M tl + + M addl M ti = 5.525 0KFT R :_ + + V addl R = 2.21 .K
8 L 2 L
S RE D - M tl S REQD = 59.898.IN 3
Q Fb
V:= R- W A ) D •- v 3 AREQD= 24.654oIN
Q Fv 2
TRY 4 X 12 S = 73.8 A = 39.4 1:= 415.3-1N 4
CHECK DEFLECTIONS
M t l•8 5•W ti -L 4
EQUIV UNIF TOTAL LOAD = W t l :- DEFL
L2 ti 384E I DEFL = 0.14966608.IN
M D •8 5•W dl •L 4
EQUIV UNIF DEAD LOAD = W dl := L2 DEFL dl = 384-E-1 DEFL dl = 0.06501332.IN
DEFL 11 := DEFL ti - DEFL di DEFL 11 = 0.08465276 .IN
ALLOW DEFL (LIVE LOAD) = L = 0.4 =IN OKAY
300
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page 5
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
FT := IL LB := 1M K := 1000•LB IN := .0833333•FT KFT := K-FT
KLF := K KSI := K KSF := K PSI := L$ PSF := LB E := 1600•KSI
FT IN FT IN FT
I
WOOD BEAM DESIGN Fb := 2.4•KSI.I.0.1.15.1.O Fv := 0.165•KSI.1.15 L := 20 FT
f
FDL := 0•PSF FLL := 0•PSF FTRIB := 0-FT W fdl := FDL•FTRIB W fll := FLL•FTRIB
RDL := 19.2•PSF RLL := 25-PSF TRIB := 2-FT W rdl := RDL•TRIB W di := RLL•TRIB
Wdl'=Wrdl +Wfdl P =1.6•K P =2.2•K P =PD +P P =3.8.K
W Il : =W rll +W fll
M addl := "(FT V add! C1' K
2
W L
a := 10•FT b := 10•FT
M D:- 8 W tl := W dl + W II W ti = 0.088 oKLF
W t1 L P r a b
2 )
M tl .- + + M addl M ti = 23.42 .KFT R := W WI- L+ P T b+ V addl R = 2.784.K
8 L 2 L
S RE D= M tl S RE D = 101.82601N
Q Fb Q
V:= R- W A QD:= V 3 A REQD = 21.3094N 2
Fv 2
TRY 5.125 X 12 GL S = 123 A = 61 I := 723•IN
CHECK DEFLECTIONS
M 5•W
EQUIV UNIF TOTAL LOAD = W :- DEFL :_
tl - L2 ti 384 E I DEFL ti = 1.4576781 0IN
M D.8 5•W dl•L
EQUIV UNIF DEAD LOAD = W dl : - DEFL
L 2 di = 384 E •I DEFLdI = 0.11950222.IN
DEFL 11 := DEFL t i - DEFL dl DEFL 11 = 1.338175884N
ALLOW DEFL (LIVE LOAD) = I— = 1.333334IN OKAY
180
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page Co
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
•
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LEE ENGINEERING, INC. MADE BY DATE 41 SHTNO 7
1300 JOHN ADAMS ST. CLIENT �rowr- 111 FILE NO l_
OREGON CITY, OR 97045
Vge
(503) 655 -1342 FAX (503) 655 -1360 PROJECT 494046'
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LEE ENGINEERING, INC. MADE BY 5J - DATE SHTNO 6
1300 JOHN ADAMS ST. CLIENT FILE NO
OREGON CITY, OR 97045
` (503) 655 -1342 FAX (503) 655 -1360 PROJECT
FTEft LB -lb K:= 1000•LB IN:_.0833333.FT K K K
KSF :_ — KLF := — KSI :_
FT2 FT IN
PSI := KSI .00I PSF := KSF -.001 KFT := K -FT E := 29000.PSI PLF := KLF -.001
DESIGN CRITERIA
DESIGN CODE : 1997 UBC SBP : 1500 PSF (ASSUMED)
ROOF LL : 25PSF + DRIFTING ALLOWANCE EFP : 35 PCF (RET'G WALLS)
WIND DESIGN : VELOCITY = 80 MPH, EXPOSURE B
SEISMIC ZONE : 3
ROOF DEAD LOAD RFR := 3•PSF FRAMING
RPL := 2•PSF PLYWOOD
RRF := 6•PSF ROOFING
RME := 2•PSF MECH & ELECT
RMS := 2•PSF MISC
RCG := 0•PSF CEILING
RIN := 0•PSF INSULATION
ROOF DEAD LOAD RDL := RFR + RPL + RRF + RME + RMS + RCG + RIN
RDL = 15 .PSF
ROOF LIVE LOAD RLL := 25•PSF
ROOF TOTAL LOAD RTL := RDL + RLL RTL = 40 oPSF
LEE ENGINEERING, INC. p
client: RALPH GOMEZ CONSTRUCTION page
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
DETERMINE WT OF STRUCTURE
RF DL RDL•17•FT•20•FT RF DL =5.1 <K
WT TOTAL DL
WT TOTAL = 5.1.K
SEISMIC FORCE SHEAR WALL BUILDING (PLYWD)
Soil Type: Sd
STATIC FORCE PROCEDURE W WT TOTAL
C v := 0.54 1997 UBC TABLE 16 -R R := 5.5 1997 UBC TABLE 16 -N OR 16 -P
I := 1.0 1997 UBC TABLE 16 -k C t := 0.02 1997 UBC SECTION 1630.2.2
h n := 23 FT HEIGHT OF BUILDING C a := 0.36 1997 UBC TABLE 16 -Q
3
T:= [C
T = 0.559 •
Base Shear
C v •I
V - V = 896.464 lb
R•T
Base Shear Need Not Exceed
2.5•C a •I
V 1 := •W V 1 = 834.545 1b
R
The Total Design Base Shear Shall Not Be Less Than
V 0.11•C V 201.96 lb
SIMPLIFIED DESIGN BASE SHEAR
3.0•C a
V:= •W V=1.001°K
R
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page (
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
•
WIND FORCES
UTILIZE METHOD 2 (UBC) FOR DETERMINING WIND FORCES
Ce 1 5 := 0.62 Cq 15 := 0.8 + 0.5 (LEEWARD + WINDWARD)
Ce 20 := 0.67 Cq 1 8:= 0.8+0.5
Qs := 16.4-PSF I := 1.0
Ce 2 5 := 0.72 Cq 20 := 1.3
Ce 30 := 0.76 Cq 25 := 1.3
C q 30 := 1.3
Pw 15 '= Ce 15 15 -Qs•I Pw 15 = 13.218•PSF
Pw 18 := Ce 20• 18 -Qs•I Pw 18 = 14.284oPSF BASIC WIND FORCE
Pw 20 '= Ce 20• 20'Qs•I Pw 20 = 14.284oPSF
Pw 25 := Ce 25' 25'Qs•I Pw 25 = 15.35•PSF
Pw 30 := Ce 30' 30'Qs •I Pw 30 = 16.203 oPSF
DETERMINE WIND SAIL (TRANSVERSE)
WINDSAIL 8 := 0•FT•0•FT
WINDSAIL 20 := 0•FT•0•FT
WINDSAIL 15 := 0•FT•0•FT
WINDSAIL 25 •= 5•FT•14•FT
WINDSAIL 18 := 1 •FT• 14•FT
WINDSAIL 30 := 2•FT• 14•FT
WINDLD 15 := WINDSAIL 15-Pw 15 WINDLD 18 := WINDSAIL 18•Pw 18 WINDLD 25 := WINDSAIL 25 •Pw 2
WINDLD 2 := WINDSAIL 20 20 WINDLD 3 0 := WINDSAIL 30' 30
WINDFORCE := WINDLD 15 + WINDLD 18 + WINDLD 20 + WINDLD 25 + WINDLD 30
WINDFORCE = 1.728.K
WIND CONTROLS LATERAL LOAD DESIGN IN TRANSVERSE DIRECTION WINDFORCE =1.728.K
SEISMIC CONTROLS LATERAL LOAD DESIGN IN LONGITUDINAL DIRECTION V = 0.835•K
LEE ENGINEERING, INC.
client: RALPH GOMEZ CONSTRUCTION page , I
project: KOVAC RESIDENCE ADDITION. job no. 2361
9740 SW RIVERWOOD LN TIGARD, OR by: SJE date 04JUN00
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LEE ENGINEERING, INC. MADE BY �t - DATE �4 SHT NO ��
1300 JOHN ADAMS ST. CLIENT C�naW E� FILE NO 74.,1 OREGON CITY, OR 97045
(503) 655 1 342 FAX (503) 655-1360 PROJECT LLOV S J