Specifications \O{ cc"".) \, ',, : ' CI NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919
MAY 21 2018
CITY OF TIGARD
BUILDING DIVISION N D31695
Thirsty Lion Patio
10205 SW Washington Square
Tigard, OR
STRUCTURAL CALCULATIONS
5/14/2018
4FZWCTUR,q Mark Santa Maria, SE
3EDPROF
���. F �,�01111 Project Engineer
15,386
'" Edwin T. Dean, PE, SE
OREGON
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NPrincipal-In-Charge
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EXPIRATION DATE: 12-31-19 4.....4;) LRS Architects
DIGITAL SIGNATURE: 5/15/18 ] Client
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THESE CALCULATIONS ARE VOID IF SIGNATURE IS NOT ORIGINAL
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 1
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Table of Contents
NARRATIVE DESCRIPTION 1
TYPICAL ROOF JOIST 2
PERIMETER GIRDER 1 4
PERIMETER GIRDER 2 5
PERIMETER GIRDER 3 6
PERIMETER GIRDER 4 7
RIDGE GIRDER 8
EXISTING HEADER AT RIDGE GIRDER 9
EXISTING HEADER AT WEST WINDOWS 13
EXISTING HEADER AT SOUTH WALL 15
SEISMIC DESIGN 17
EXISTING COLUMN CHECK 21
EXISTING POST BASE VERIFICATION 24
POST BASE MOMENT CONNECTION 25
NARRATIVE DESCRIPTION
The Thirsty Lion Patio is a roof expansion for an existing restaurant including new wood beams,joists, and connections replacing an
existing exterior trellis.
Existing trellis construction includes cantilever wood columns on concrete pedestals. Existing walls are typical wood framing.
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 2
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
TYPICAL ROOF JOIST
Dead Load (self wt+ misc),; DL= 12 psf
- 5 psf,wood decking
- 3 psf,4"rigid insulation
- 2 psf, misc
Snow Load,; SL=25 psf
Joist span maximum,; L=20.25 ft
Distributed load to joist @ 48"OC,; w= (DL+SL)x 48 in= 148.00 plf
Design moment,; Mx=w x L2/8=7586.16 lb ft
Design shear,; F=w x L/2=1498.50 lb
TRY 3 1/8"x 10 1/2" glu-lam beams @ 48"OC
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX=7586 lb ft
Design shear; F= 1499 lb
in I
0
-► 3.125"
Glulam section details
Net finished breadth of sections; b=3.125 in
Net finished depth of sections; d = 10.5 in
Number of sections in member; N = 1
Overall breadth of member; bb=N x b=3.125 in
Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Tension parallel to grain; Ft= 1100 lb/in2
Compression parallel to grain; Fc= 1650 lb/in2
Bending about X-X axis properties(loaded perpendicular to wide faces of laminations):
Positive bending; Fbx_pos= 2400 lb/in2
Negative bending; Fbx_neg= 1850 lb/in2
Compression perpendicular to grain; Fc_perp=650 lb/in2
Shear parallel to grain; Fv=265 lb/in2
Modulus of elasticity; E= 1800000 lb/in2
Modulus of elasticity, stability calculations; Emin=950000 lb/in2
Mean shear modulus; Gdef= E/16= 112500 lb/in2
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 3
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Bending about Y-Y axis properties(loaded parallel to wide faces of laminations):
Bending; Fby= 1450 Ib/int
Modulus of elasticity; stability calculations; Eymin=850000 lb/in2
Member details
Service condition; Dry
Load duration; Ten years
The beam is one of three or more repetitive members
Section properties
Cross sectional area of member; A= N x b x d=32.81 in2
Section modulus; SX=N x b x d2/6=57.42 in3
Sy=d x(N x b)2/6= 17.09 in3
Second moment of area; lX= N x b x d3/12=301.46 in4
ly=d x(N x b)3/12 =26.70 in4
Adjustment factors
Load duration factor-Table 2.3.2; CD= 1.00
Temperature factor-Table 2.3.3; Ct= 1.00
Flat use factor-Table 5A; Cfu= 1.16
Bearing area factor-c1.3.10.4; Cb= 1.00
Length of beam between points of zero moment; Lo=20.25 ft
For species other than Southern Pine; x= 10
Volume factor-eq.5.3-1; Cv=min((21 ft/Lor"x(12 in/drX x(5.125 in/b)1' , 1)= 1.00
Depth-to-breadth ratio; d/(N x b)=3.36
Effective laterally unsupported span length; le=20.25 ft
Slenderness ratio for bending members-eq.3.3-5; Rb='l[le x d/(N x b)2] = 16.164
Adjusted bending design value for bending; Fb*= Fbx_pos x CD x CMb x Ct x CG= 2400 Ib/int
Adjusted modulus of elasticity for member stability; Eymin'= Eymin x CME x Ct=850000 lb/in2
Critical buckling design value for bending; FbE= 1.2 x Eymin'/Rb2=3904 lb/in2
Beam stability factor-eq.3.3-6
CL=[1 +(FbE/Fb*)]/1.9-Al[([1 +(FbE/Fb*)]/1.9)2-(FbE/Fb*)/0.95]=0.94
Strength in bending-c1.3.3.1
Design bending stress; Fb'= Fbx_pos x CD x Ct x min(CL, Cv)x CG=2248 lb/in2
Actual bending stress; fb=MX/SX= 1585 lb/in2
fb/Fb=0.705
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, =Fv x CD x Ct= 265 lb/in2
Actual shear stress-eq.3.4-2; fv=3 x F/(2 x A)=69 lb/in2
fv/FJ=0.259
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 4
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
PERIMETER GIRDER 1
Girder span,; L=23.25 ft
Tributary width,; Trib= 18.83 ft/2=9.41 ft
Dead load,; DL= 12.00 psf
Snow load,; SL=25.00 psf
Design moment,; Mx=(DL+3 psf+ SL)x Trib x L2/8=25446.98 Ib_ft
Design shear,; F= R=(DL+3 psf+SL)x Trib x L/2=4377.98 lb
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; Mx=25447'bit
Design shear; F=4378 lb
Maximum reaction; R=4378 lb
Glulam section details
Net finished section breadth; b=5.5 in; Net finished section depth; d = 12 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Member details
Service condition; Dry
Length of bearing; Lb=4 in
Load duration; Ten years
Bearing perpendicular to grain-c1.3.10.2
Adjusted compression; Fc_perp'=650 lb/in2; Applied compression; fc_perp= 199 lb/in2
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb'= 2380 lb/in2; Actual bending stress; fb= 2313 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, = 265 lb/in2; Actual shear stress; fv=99 Ib/int
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
4 NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 5
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
PERIMETER GIRDER 2
Girder span,; L=21.33 ft
Tributary width,; Trib=20.25 ft/2 = 10.13 ft
Dead load,; DL= 12.00 psf
Snow load,; SL=25.00 psf
Design moment,; MX=(DL+3 psf+ SL)x Trib x L2/8= 23032.80 lb_ft
Design shear,; F=R= (DL+3 psf+SL)x Trib x L/2=4319.33 lb
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM) BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX=23033 Ib_ft
Design shear; F=4319 lb
Maximum reaction; R=4319 lb
Glulam section details
Net finished section breadth; b=5.5 in; Net finished section depth; d = 12 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Member details
Service condition; Dry
Length of bearing; Lb=4 in
Load duration; Ten years
Bearing perpendicular to grain-c1.3.10.2
Adjusted compression; Fc_perp'=650 lb/in2; Applied compression; fc_perp= 196 lb/in2
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fe=2380 lb/in2; Actual bending stress; fb= 2094 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; Fv.= 265 lb/in2; Actual shear stress; f„=98 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project. Job Ref.
NISHKIAN DEANThirsty Lion Patio 31680
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 6
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
PERIMETER GIRDER 3
Girder span,; L=22.42 ft
Tributary width varies,; Trib=23.25 ft/2 = 11.63 ft
Dead load,; DL= 12.00 psf
Snow load,; SL= 25.00 psf
Triangular load,; W=(DL+3 psf+SL)x(Trib)x L/2=5212.65 lb
Design moment,; MX=2 x W x L/(9 x-V(3))= 14994.12 lb_ft
Design shear,; F=R=2/3 x W=3475.10 lb
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM) BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX= 14994 Ib_ft
Design shear; F=3475 lb
Maximum reaction; R=3475 lb
Glulam section details
Net finished section breadth; b=5.5 in; Net finished section depth; d = 12 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Member details
Service condition; Dry
Length of bearing; Lb=4 in
Load duration; Ten years
Bearing perpendicular to grain -c1.3.10.2
Adjusted compression; Fc_perp=650 lb/in2; Applied compression; fc_perp= 158 lb/in2
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb'=2380 lb/in2; Actual bending stress; fb= 1363 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; Fv'=265 lb/in2; Actual shear stress; fv=79 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
NISHKIAN DEAN
• CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 7
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
PERIMETER GIRDER 4
Girder span,; L=23.25 ft
Tributary width varies,; Trib= 18.83 ft/2=9.41 ft
Dead load,; DL= 12.00 psf
Snow load,; SL=25.00 psf
Triangular load,; W=(DL+3 psf+SL)x(Trib)x L/2=4377.98 lb
Design moment,; Mx=2 x W x L/(9 x I(3))= 13059.40 lb_ft
Design shear,; F= R=2/3 x W=2918.65 lb
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN (NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX= 13059 lb_ft
Design shear; F=2919 lb
Maximum reaction; R=2919 lb
Glulam section details
Net finished section breadth; b=5_5 in; Net finished section depth; d = 12 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Member details
Service condition;
Length of bearing; Lb=4 in
Load duration; Ten years
Bearing perpendicular to grain-c1.3.10.2
Adjusted compression; Fc_perp'=650 lb/in2; Applied compression; fc_perp= 133 lb/in2
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb'=2380 lb/in2; Actual bending stress; fb= 1187 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, =265 lb/in2; Actual shear stress; f„=66 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
NI $ HKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 8
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
RIDGE GIRDER
Girder span,; L= I((23.25 ft)2+(22.42 ft)2)=32.30 ft
Tributary width varies(add both sides),; Trib=(18.83 ft+20.25 ft)/2= 19.54 ft
Dead load,; DL= 12.00 psf
Snow load,; SL= 25.00 psf
Triangular load,; W=(DL+3 psf+SL)x(Trib)x L/2= 12622.41 lb
Design moment,; Mx=2 x W x L/(9 x I(3))= 52306.64 lb_ft
Design shear,; F= R=2/3 x W=8414.94 lb
STRUCTURAL GLUED LAMINATED TIMBER(GLULAM) BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX=52307 lb_ft
Design shear; F=8415 lb
Maximum reaction; R=8415 lb
Glulam section details
Net finished section breadth; b=6.75 in; Net finished section depth; d= 18 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 DF/DF
Member details
Service condition; Dir
Length of bearing; Lb=4 in
Load duration; Ten years
Bearing perpendicular to grain-c1.3.10.2
Adjusted compression; Fc_perP=650 lb/in2; Applied compression; fc_perp=312 lb/in2
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb=2112 lb/in2; Actual bending stress; fb= 1722 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F,;=265 lb/in2; Actual shear stress; f„= 104 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
NISHKIAN DEAN
• CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 9
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
EXISTING HEADER AT RIDGE GIRDER
Dead load,; DL= 12.00 psf
Snow load,; SL= 25.00 psf
Existing beam span,; Le=21.5 ft
Existing beam tributary,; Tribe=6.5 ft
Girder span,; L9=1i((23.25 ft)2+(22.42 ft)2)=32.30 ft
Tributary width varies(add both sides),; Trib= (18.83 ft+20.25 ft)/2= 19.54 ft
Triangular load,; W=(DL+3 psf+SL)x(Trib)x Lg/2= 12622.41 lb
Ridge beam reaction at header,; V=2/3 x W=8414.94 lb
Existing beam reaction at header,; Ve= Le x Tribe x(DL+3 psf+SL)=5590.00 lb
Header span,; L=7.66 ft
Design moment,; MX=(V+Ve)x L/4=26819.46 lb_ft
Design shear,; F= R=(V+Ve)/2=7002.47 lb
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX=26819 lb_ft
Design shear; F= 7002 lb
Maximum reaction; R=7002 lb
I
c•1
I C
� IVII III I
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F4-4.5"-
14-4"_o{
Sawn lumber section details
Nominal breadth of sections; boom= 2 in
Dressed breadth of sections; b= 1.5 in
Nominal depth of sections; doom= 12 in
Dressed depth of sections; d = 11.25 in
Number of sections in member; N =3
Overall breadth of member; bb=N x b=4_5 in
Species,grade and size classification; Douglas Fir-Larch, No.1 &Btr grade, 2"&wider
Bending parallel to grain; Fb= 1200 lb/in2
Tension parallel to grain; Ft=800 lb/in2
Compression parallel to grain; Fc= 1550 lb/in2
Compression perpendicular to grain; Fc_perp=625 lb/in2
Project Job Ref.
NISHKIAN DEAN
• CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 10
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Shear parallel to grain; F9= 180 lb/in2
Modulus of elasticity; E= 1800000 lb/in2
Modulus of elasticity, stability calculations; Emin=660000 lb/in2
Mean shear modulus; Gdef= E/16= 112500 lb/in2
Member details
Service condition;
Length of bearing; Lb=4 in
Load duration; Ten years
Section properties
Cross sectional area of member; A= N x b x d =50.62 in2
Section modulus; Sx=N x b x d2/6=94.92 in3
Sy=d x(N x b)2/6=37.97 in3
Second moment of area; lX= N x b x d3/12=533.94 in4
ly=d x(N x b)3/12=85.43 in4
Adjustment factors
Load duration factor-Table 2.3.2; CD= 1.00
Temperature factor-Table 2.3.3; Ct= 1.00
Size factor for bending-Table 4A; CFb= 1.00
Size factor for tension-Table 4A; CFt= 1.00
Size factor for compression-Table 4A; CFC= 1.00
Flat use factor-Table 4A; Cfu= 1.20
Incising factor for modulus of elasticity-Table 4.3.8
CiE= 1.00
Incising factor for bending, shear,tension&compression-Table 4.3.8
Ci= 1.00
Incising factor for perpendicular compression-Table 4.3.8
Cic_perp= 1.00
Repetitive member factor-c1.4.3.9; Cr= 1.15
Bearing area factor-c1.3.10.4; Cb= 1.00
Depth-to-breadth ratio; dnom/(N x bnom)=2.00
-Beam is fully restrained
Beam stability factor-c1.3.3.3; CL= 1.00
Bearing perpendicular to grain-cI.3.10.2
Design compression perpendicular to grain; Fc_perp'=Fc_perp x Ct x Ci x Cb=625 lb/in2
Applied compression stress perpendicular to grain; fc_perp= R/(N x b x Lb)=389 lb/in2
fc_perp/Fc_perP=0.622
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb'= Fb x CD x Ct x CL X CFb x Ci x Cr= 1380 lb/in2
Actual bending stress; fb=MX/SX=3391 lb/in2
fb/Fb=2.457
Project Job Ref.
IU NISHKIAN DEAN
•
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 11
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
FAIL-Design bending stress is less than actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F,;=F„x CD x Ct x C;= 180 lb/in2
Actual shear stress-eq.3.4-2; f„=3 x F/(2 x A)= 207 lb/in2
f„/F = 1.153
FAIL-Design shear stress is less than actual shear stress
• Member fails in flexure, use 5'/x16 glu-lam for replacement header:
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD MEMBER
DESIGNSTRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN (NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; Mx=26819 lb_ft
Design shear; F=7002 lb
Maximum reaction; R=7002 lb
\ /
\
//
►
Glulam section details
Net finished breadth of sections; b=5_5 in
Net finished depth of sections; d = 15 in
Number of sections in member; N = 1
Overall breadth of member; bb= N x b=5.5 in
Alignment of laminations; Horizontal
Stress class; 24F-V4 SP/SP
Tension parallel to grain; Ft=975,lb/in2
Compression parallel to grain; Fc= 1350 lb/in2
Bending about X-X axis properties(loaded perpendicular to wide faces of laminations):
Positive bending; Fbx_pos=2400 lb/in2
Negative bending; Fbx_neg= 1650 lb/in2
Compression perpendicular to grain; Fc_perp=740 lb/in2
Shear parallel to grain; F = 210 lb/in2
Modulus of elasticity; E= 1700000 lb/in2
Modulus of elasticity, stability calculations; Emin=900000 lb/in2
Mean shear modulus; Gdef= E/16= 106250 lb/in2
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 12
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Bending about Y-Y axis properties(loaded parallel to wide faces of laminations):
Bending; Fby= 1350 lb/in2
Modulus of elasticity; stability calculations; Eymin=790000 lb/in2
Member details
Service condition; Dr1C
Length of bearing; Lb=4 in
Load duration; Ten years
Section properties
Cross sectional area of member; A= N x b x d=82.50 in2
Section modulus; SX= N x b x d2/6= 206.25 in3
Sy=d x(N x b)2/6=75.62 in3
Second moment of area; lX= N x b x d3/12= 1546.88 in4
ly=d x(N x b)3/12=207.97 in4
Adjustment factors
Load duration factor-Table 2.3.2; CD= 1.00
Temperature factor-Table 2.3.3; Ct= 1.00
Flat use factor-Table 5A; Cfu= 1.07
Bearing area factor-c1.3.10.4; Cb= 1.00
Length of beam between points of zero moment; Lo=9.667 ft
For Southern Pine; x=20
Volume factor-eq.5.3-1; Cv=min((21 ft/Lo)v"x(12 in/d)'/X x(5.125 in/ 1)= 1.00
Depth-to-breadth ratio; d/(N x b)=2.73
-Beam is fully restrained
Beam stability factor-c1.3.3.3; CL= 1.00
Bearing perpendicular to grain-c1.3.10.2
Design compression perpendicular to grain; Fc_perp'=Fc_perp X Ct X Cb=740 lb/in2
Applied compression stress perpendicular to grain; fc_perp= R/(N x b x Lb)=318 lb/in2
fc_perp/Fc_perp=0.430
PASS-Design compressive stress exceeds applied compressive stress at bearing
Strength in bending-c1.3.3.1
Design bending stress; Fb= Fbx_pos x CD x Ct x min(CL, Cv)x Cc= 2400 lb/in2
Actual bending stress; fb= MX/SX= 1560 lb/in2
fb/FI;=0.650
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, = Fv x CD x Ct=210 lb/in2
Actual shear stress-eq.3.4-2; fv=3 x F/(2 x A)= 127 lb/in2
fv/Fv'=0.606
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
0> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 13
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
EXISTING HEADER AT WEST WINDOWS
Dead load,; DL= 12.00 psf
Snow load,; SL= 25.00 psf
Existing beam span,; Le=23.25 ft
Existing beam tributary,; Tribe=8 ft
New framing span,; Lnew=20.625 ft
Tributary width,; Trib=4 ft
New beam reaction at header,; V=Trib x Lnew x(DL+3 psf+SL)=3300.00 lb
Existing beam reaction at header,; Ve= Le x Tribe x(DL+3 psf+SL)=7440.00 lb
Header length,; L=6.16 ft
Design moment,; MX=VxL/4+Vex(L-2ft)x2ft/L = 15130.83 lb_ft
Design shear,; F=V/2+Vex2ft/L=4065.58lb
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; Mx= 15131 lb ft
Design shear; F=4066 lb
T t
c I
N y j
\\,/.117 1
4.5"►I
Sawn lumber section details
Nominal breadth; bnom=2 in; Dressed breadth; b= 1_5 in
Nominal depth; dnom= 12 in; Dressed depth; d = 11.25 in
Number of sections; N =3; Breadth of member; bb=4_5 in
Lumber grading; No.1 &Btr Douglas Fir-Larch
Member details
Service condition; Qy
Load duration; Ten years
Strength in bending-c1.3.3.1
Design bending stress; Fe= 1380 lb/in2; Actual bending stress; fb= 1913 lb/in2
FAIL-Design bending stress is less than actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; Fv'= 180 lb/in2; Actual shear stress; fv= 120 lb/in2
Project Job Ref.
NISHKIAN DEAN
• CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean •
1022 SW Salmon Street Suite 300 Structural Calculations 14
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
PASS-Design shear stress exceeds actual shear stress
Member fails in flexure, use 5%x12 glu-lam for replacement header:
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN (NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX= 15131 Ib_ft
Design shear; F=4066 lb
(V \
Glulam section details
Net finished section breadth; b=5_5 in; Net finished section depth; d = 12 in
Number of sections; N = 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 SP/SP
Member details
Service condition; Dry
Load duration; Ten years
Strength in bending-c1.3.3.1
Design bending stress; Fb=2392 lb/in2; Actual bending stress; fb= 1376 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, =210 lb/in2; Actual shear stress; fv=92 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
c> NISHKIAN DEANThirsty Lion Patio 31680
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 15
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
EXISTING HEADER AT SOUTH WALL
Dead load,; DL= 12.00 psf
Snow load,; SL=25.00 psf
New framing span,; Lnew= 19.16 ft
Tributary width,; Trib=4 ft
New beam reaction at header,; V=Trib X Lnew x(DL+3 psf+SL)=3065.60 lb
Header length,; L= 11.5 ft
Design moment,; MX=2.5 ft x(DL+3 psf+SL)x L2/8+0.5 x V x L = 19280.32 lb_ft
Design shear,; F=2.5ftx(DL+3psf+SL)xL/2+ 1.5xV=5173.40lb
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL WOOD MEMBER
DESIGNSTRUCTURAL WOOD BEAM DESIGN (NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX= 19280 Ib_ft
Design shear; F= 5173 lb
in
14-4.5"
Sawn lumber section details
Nominal breadth; boom= 2 in; Dressed breadth; b= 1_5 in
Nominal depth; dnom= 12 in; Dressed depth; d= 11.25 in
Number of sections; N =3; Breadth of member; bb=4_5 in
Lumber grading; No.1 &Btr Douglas Fir-Larch
Member details
Service condition; Dir
Load duration; Ten years
Strength in bending-c1.3.3.1
Design bending stress; Fb'= 1380 lb/in2; Actual bending stress; fb= 2437 lb/in2
FAIL-Design bending stress is less than actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F,;= 180 lb/in2; Actual shear stress; f„= 153 lb/in2
PASS-Design shear stress exceeds actual shear stress
• Header fails in bending, use 5'/"x 12"glu-lam
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 16
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
STRUCTURAL WOOD MEMBER DESIGNSTRUCTURAL GLUED LAMINATED TIMBER(GLULAM)BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2012 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; MX= 19280 lb ft
Design shear; F=5173 lb
Glulam section details
Net finished section breadth; b=5_5 in; Net finished section depth; d = 12 in
Number of sections; N= 1; Alignment of laminations; Horizontal
Stress class; 24F-V4 SP/SP
Member details
Service condition; Dry
Load duration; Ten years
Strength in bending-c1.3.3.1
Design bending stress; Fb=2381 lb/in2; Actual bending stress; fb= 1753 lb/in2
PASS-Design bending stress exceeds actual bending stress
Strength in shear parallel to grain-c1.3.4.1
Design shear stress; F, = 210 lb/in2; Actual shear stress; f9= 118 lb/in2
PASS-Design shear stress exceeds actual shear stress
Project Job Ref.
c> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 18
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Area of existing roof,; Aexisting= 1670 ft2
Area of patio roof,; Apatio= 1390 ftz
Building perpendicular wall length,; Lwall= 108.5 ft x 2=217.00 ft
Wall tributary height,; hwaii= 14 ft/2+3 ft= 10.00 ft
Perpendicular wall weight,; Wwall=Lwall x hwall x 10 psf= 21700.00 lb
Dead load to roof,; DL= 12.00 psf
Seismic mass(include 3 psf for framing),; W=(Aexisting+Apatio)x(DL+3 psf)+Wwall =67600.00 lb
Diaphragm average height,; hn= 14 ft
SEISMIC FORCES(ASCE 7-10)
Tedds calculation version 3.0.10
Site parameters
Site class; D
Mapped acceleration parameters(Section 11.4.1)
at short period; Ss=0.977
at 1 sec period; Si =0.425
Site coefficient;;;at short period (Table 11.4-1); Fa= 1.109
at 1 sec period (Table 11.4-2); F = 1.575
Spectral response acceleration parameters
at short period (Eq. 11.4-1); SMS= Fa X Ss= 1.084
at 1 sec period (Eq. 11.4-2); SMI = Fv x Si =0.669
Design spectral acceleration parameters(Sect 11.4.4)
at short period (Eq. 11.4-3); SDs= 2/3 x SMS=0.722
at 1 sec period (Eq. 11.4-4); SD1 =2/3x SM1 =0.446
Seismic design category
Risk category(Table 1.5-1); II
Seismic design category based on short period response acceleration(Table 11.6-1)
D
Seismic design category based on 1 sec period response acceleration (Table 11.6-2)
D
Seismic design category; D
Approximate fundamental period
Height above base to highest level of building; hn= 14 ft
From Table 12.8-2:
Structure type; All other systems
Building period parameter Ct; Ct=0.02
Building period parameter x; x=0.75
Approximate fundamental period (Eq 12.8-7); Ta=Ct X(hn)x x 1 sec/(1ft)x=0.145 sec
Building fundamental period (Sect 12.8.2); T=Ta=0.145 sec
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 19
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Long-period transition period; TL= 12 sec
Seismic response coefficient
Seismic force-resisting system(Table 12.2-1); A. Bearing_Wall_Systems
15. Light-frame(wood)walls sheathed with wood structural panels
Response modification factor(Table 12.2-1); R=6.5
Seismic importance factor(Table 1.5-2); Ie= 1.000
Seismic response coefficient(Sect 12.8.1.1)
Calculated (Eq 12.8-2); Cs_caic=SDs/(R/Ie)=0.1111
Maximum (Eq 12.8-3); Cs_max=SDI I(T x(R/le))=0.4743
Minimum (Eq 12.8-5); Cs_m�n=max(0.044 X SDS X le,0.01)=0.0318
Seismic response coefficient; Cs=0.1111
Seismic base shear(Sect 12.8.1)
Effective seismic weight of the structure; W=67.6 kips
Seismic response coefficient; Cs=0.1111
Seismic base shear(Eq 12.8-1); V=Cs x W=7.5 kips
Total diaphragm area,; Alia=Apatio+Aexisting=3060.00 ft2
Total diaphragm length,; L= 129.625 ft
Distributed N-S load to diaphragm-see following page for dimensions
68'-1"diaphragm width,; v, =68.08 ft x V/Atha=167.16 plf
62'-6"diaphragm width,; v2=62.50 ft x V/Adia=153.46 plf
84'-0"diaphragm width,; v3=84.00 ft x V/Adia=206.25 plf
46'-5"diaphragm width,; va=46.42 ft x V/Adia= 113.98 plf
Description Reactions - Consistent _.....
Thirsty Lion - roof diaphragm distribution
8,Units
8,Properties
X= 0; E= 1600; 1 = 1083.54;
Moment Releases
}Supports
X 0; Disp= 0;
X = 25.25; Disp= 0;
X =63.875; Disp= 0;
i... X 108.125; Disp=0;
X= 129.625; Disp= 0; 1 1 1 ? 1
Springs 1691.058 4611.038 7990.625 7656.128 176.789
Point Loads
,-Uniform Loads
XStart= 0; XEnd= 21.33; UStart= -167; UEnd= -167; /PLF
XStart = 21.33; XEnd= 66.16; UStart = -154; UEnd= -154; /PLF
XStart= 66.16; XEnd = 110.42; UStart =-206; UEnd = -206; /PLF
XStart= 110.42; XEnd= 129.625; UStart = -114; UEnd=-114; /PLF
Reaction at shear walls along gridline E,; VE=7656 lb
ASD shear at walls,; VASD=VEX0.61(5.16ftx2)=445.12plf
Hold down force required,; T=vaso x hn=6231.63 lb
Existing wall construction is 15/32"sheathing with 10d nails @ 4":
Wall capacity,; vwaii=920 plf/2=460.00 plf;
Existing holddown(Simpson HD7A)capacity,; THD7A=8950 Ib; >T, PASS;
Project Job Ref.
(> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 20
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
21'-4" 44'-10" 44'-3 1/2" 18'-10"
/ / / / /
li
c<Oj
(;w
CO I
4
r coco #
ii �
GO I 11
CI S •1
it,
II li
IE I f'
Il I—
I
ll S
�
ti, = Iinko
,,, w
w... I
0I
.„-j.€
25'-2 3/8" 35'4 3/4" 47'-2 3/4" 21'-5 3/4"
/ / / /
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 21
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
EXISTING COLUMN CHECK
Assume tributary lateral load at exterior line of patio in N-S direction is resisted by three(3)cantilever wood columns:
Lateral load per column,; Vcoi=V/Ada x(9.42 ft x 46.42 ft)/3=357.90 lb
Height at top of column,; H = 10.42 ft
Load factor for seismic reduction,; LF=6.5/1.5=4.33
ASD moment at each column,; Mx=0.6 x Vcoi x H x LF=9.70 kip_ft
Tributary area to column,; Trib= (22.42 ft+21.33 ft)x 20.25 ft/4=221.48 ft2
Maximum dead load reaction at edge column,; P=(DL+3 psf)x Trib=3322.27 lb
STRUCTURAL WOOD BEAM DESIGN(NDS)
In accordance with the ANSI/AF&PA NDS-2015 using the ASD method
TEDDS calculation version 1.7.02
Analysis results
Design moment in major axis; Mx=9696 Ib_ft
Design axial compression; P=3322 lb
Sawn lumber section details
Nominal breadth of sections; bnom= 10 in
Rough-sawn breadth of sections; b=9.625 in
Nominal depth of sections; dnom= 10 in
Rough-sawn depth of sections; d =9.625 in
Number of sections in member; N = 1
Overall breadth of member; bb= N x b=9.625 in
Species,grade and size classification; Western Cedars, No.1 grade, Posts and timbers
Bending parallel to grain; Fb=875 lb/in2
Tension parallel to grain; Ft=600 lb/in2
Compression parallel to grain; Fo=800 lb/in2
Compression perpendicular to grain; Fc_perp=425 lb/in2
Shear parallel to grain; F„= 140 lb/in2
Modulus of elasticity; E= 1000000 lb/in2
Modulus of elasticity, stability calculations; Emin=370000 lb/in2
Mean shear modulus; Gdef= E/16=62500 lb/in2
Member details
Service condition; Dir C
Load duration; Ten minutes
Unbraced length in x-axis; Lx= 10.25 ft
Effective length factor in x-axis; Kx=2_1
Effective length in x-axis; Lex=Lx x Kx=21.525 ft
Unbraced length in y-axis; Ly= 10.25 ft
Project Job Ref.
NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 22
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Effective length factor in y-axis; Ky=2_1
Effective length in y-axis; Ley=Ly x Ky=21.525 ft
Section properties
Cross sectional area of member; A= N x b x d=92.64 in2
Section modulus; S,1= N x b x d2/6= 148.61 in3
Sy=d x(N x b)2/6= 148.61 in3
Second moment of area; lX= Nxbxd3/12=715.19in4
ly=d x(N x b)3/12=715.19 in4
Adjustment factors
Load duration factor-Table 2.3.2; CD= 1.60
Temperature factor-Table 2.3.3; Ct= 1.00
Size factor for bending-Table 4D; CFb= 1.00
Size factor for tension-Table 4D; Cn= 1.00
Size factor for compression-Table 4D; CFC= 1.00
Flat use factor-Table 4D; Cfu= 1.00
Incising factor for modulus of elasticity-Table 4.3.8
CiE= 1.00
Incising factor for bending,shear,tension&compression-Table 4.3.8
Ci= 1.00
Incising factor for perpendicular compression-Table 4.3.8
Cic_perp=1.00
Repetitive member factor-c1.4.3.9; Cr= 1.00
Bearing area factor-c1.3.10.4; Cb= 1.00
Adjusted modulus of elasticity for column stability; Emin'= Emin x CME x Ct x CiE=370000 lb/in2
Reference compression design value; Fc*=Fc x CD x CMC x Ct x CFc x Ci= 1280 lb/in2
Critical buckling design value for compression; FCE=0.822 x Emin'/(Lex/d)2=422 lb/in2
c=0.80
Column stability factor-eq.3.7-1
Cp= (1 +(FcE/Fc*))/(2 x c)-I[((1 +(FcE/Fc*))/(2 x c))2-(FcE/Fc*)/c]=0.30
Depth-to-breadth ratio; dnom/(N x bnom)= 1.00
-Beam is fully restrained
Beam stability factor-c1.3.3.3; CL= 1.00
Strength in bending-c1.3.3.1
Design bending stress; Fe= Fb X CD X Ct X CL X CFb x Ci x Cr=1400 lb/in2
Actual bending stress; fb=MX/Sx=783 lb/in2
fb/Fb=0.559
PASS-Design bending stress exceeds actual bending stress
Strength in compression parallel to grain-c1.3.6.3
Design compressive stress; Fe'= Fc x CD x Ci x CFC x Ci x Cp=388 lb/in2
Applied compressive stress; fC=P/A=36 lb/in2
fc/Fe'=0.092
PASS-Design compressive stress exceeds applied compressive stress
Project Job Ref.
c> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 23
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Bending and axial compression-c1.3.9.2
Critical buckling design value about x-x axis; FcE1 =0.822 X Emin/(Lex/d)2=422 lb/int
Bending and compression check-eq.3.9-3; [fc/Fc]2+fb1 /(Fb1'x[1 -(fc/FcE1)])=0.620; < 1
PASS-Combined compressive and bending stresses are within permissible limits
Project Job Ref.
> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
1022 SW Salmon Street Suite 300 Structural Calculations 24
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
EXISTING POST BASE VERIFICATION
The existing post base connection uses two 3/16"x 6"x 1'-2"side plates welded to a base plate mounted on a reinforced
concrete pier.At a minimum two additional side plates will be required for moment resistance in the perpendicular direction.
Design moment at base of column,; MX=9696.19 lb_ft
Moment arm between plates,; b=9.625 in + .1875 in=9.81 in
Design force required for moment connection,; P=MX/b= 11857.76 lb
EXISTING PLATE IN TENSION
Yield strength of plate,; Fy=36 ksi
Tensile strength of plate,; F.=58 ksi
Thickness of existing plate,; tp_e= .1875 in
Width of existing plate,; bp_e=6 in
Area of gross section,; Ag_e=tp_e x bp_e= 1.12 in2
Safety factor for yielding,; Qty= 1.67
Allowable tensile yielding strength (gross section),; Pny= Fy x Ag_e/Qty= 24251.50 Ib; P„ > , PASS;
Safety factor for rupture,; Qtr=2.00
Area of net section,; An_e=tp_e X(bp_e—0.625 in—0.0625 in)= 1.00 in2
[5/8"bolts]
Allowable tensile rupture strength (net section),; Pnr= Fu x An_e/Qtr=28886.72 Ib; Pnr>P__ _PASS;
EXISTING WELD STRENGTH
Length of weld,; L=6 in
Weld size(16ths),; D=3
Weld material strength,; FExx=70 ksi
Safety Factor for weld,; S2W=2.00
Available weld shear strength,; Rn=0.60 x FExx x 0.707 x(D/16)x 1 in x L x 1.5/Q =25054.31 lb
(1.5 factor for transversly-loaded weld); R�>P, PASS;
BOLT SHEAR
Nominal shear stress,; Fnv=27 ksi
Area of bolt,; Ab= (0.625 in)2 x n/4=0.31 in2
Safety factor for bolt shear,; S2v=2.00
Allowable shear strength x 2 bolts,; Rn= Fnv x Ab x 2/52v=8283.50 Ib; RR„<P�FAIL;
BOLT BEARING
Clear distance between hole and edge of plate,; le=2 in—(0.625 in +0.0625in)/2 = 1.66 in
Safety factor for bolt bearing,; Qbrg=2.00
Allowable bearing strength,; Rn= 1.2 x ID x tp_e x Fu/S2brg= 10807.03 Ib; R5<P,FAIL;
• Existing bolts are not acceptable for moment connection
• Remove existing side plates and replace per the following calculation
Project Job Ref.
(t> N I S H K I A N DEANThirsty Lion Patio 31680
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 25
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
POST BASE MOMENT CONNECTION
The new post base connection uses four 1/4"x 6"x 1'-2"side plates welded to a base plate mounted on a reinforced
concrete pier.
Design moment at base of column,; MX=9696.19 Ib_ft
Moment arm between plates,; b=9.625 in+0.25 in=9.88 in
Design force required for moment connection,; P= MX/b= 11782.71 lb
PLATE IN TENSION
Yield strength of plate,; Fy=36 ksi
Tensile strength of plate,; Fu=58 ksi •
Thickness of plate,; tp= .25 in
Width of plate,; by=6 in
Area of gross section,; Ag=tp x by= 1.50 in2
Safety factor for yielding,; Qty= 1.67
Allowable tensile yielding strength (gross section),; Pny= Fy x Ag/Qty=32335.33 lb; P.,,,>P,PASS;
Safety factor for rupture,; Qtr=2.00
Area of net section,; An=tp x(bp—1 in—0.0625 in)= 1.23 in2
[assume 1"bolts]
Allowable tensile rupture strength (net section),; Pnr= Fu X An/52tr=35796.88 Ib; Pnr>P, PASS;
WELD STRENGTH
Length of weld,; L=6 in
Weld size(16ths),; D=3
Weld material strength,; FExx=70 ksi
Safety Factor for weld,; S2W=2.00
Available weld shear strength,; Rn=0.60 x FExx x 0.707 x(D/16)x 1 in x L x 1.5/Qw= 25054.31 lb
(1.5 factor for transversly-loaded weld); Rn>P,PASS;
BOLT SHEAR
Nominal shear stress,; Fnv=27 ksi
Area of bolt,; Ab=(1 in)2 x 1t/4=0.79 in2
Safety factor for bolt shear,; 52v=2.00
Allowable shear strength x 2 bolts,; Rn= Fnv x Ab x 2/52v=21205.75 Ib; Rn>P, PASS;
BOLT BEARING
Clear distance between hole and edge of plate,; lc=2.5 in—(1 in +0.0625in)/2= 1.97 in
Safety factor for bolt bearing,; Obrg=2.00
Allowable bearing strength,; Rn= 1.2 x Ic x tp x F„/Qbrg= 17128.13 Ib; Rn>P,PASS;
• See calculation on following page for single-shear bolt capacity at 10x10 cedar post
fie
Project Job Ref.
(I> NISHKIAN DEAN
CONSULTING AND STRUCTURAL ENGINEERS SINCE 1919 Thirsty Lion Patio 31680
Section Sheet no./rev.
Nishkian Dean
Structural Calculations 26
1022 SW Salmon Street Suite 300
Portland,OR 97205 Calc.by Date Chk'd by Date App'd by Date
MS 9/15/2017
Connection Calculator
Design Method Allowable Stress Design (ASD)
Connection Type Lateral loading sir
Fastener Type I Bolt
Loading Scenarioll Single Shear-Wood Main Member V
Main Member Type] Western Cedars V
Main Member ThieknessI 9.5 in. v
Main Member Member:Angle of Load to Gram'lo
Side Member Type Steel
Side Member Thickness 1/4 in. V
Side Member:Angie of Load to Grain
Fastener Diameter( i in.
Load Duration Factor! C_D 1.6 V
Wet service Factor c_ot 1.0
Temperature Factors C t = 1.0 V
Connection Yield Modes
b. 15390 lbs.
Is 8700 lbs.
TI 6996 lbs.
Him
8402 lbs.
Ills 1 3947 lbs.
IV 5387 lbs.
Adjusted ASD Capacity i13947 lbs. 1
• Bolt bending yield strength of 45,000 psi is assumed.
• The Adjusted ASD Capacity is only applicable for bolts with adequate end distance,
edge distance and spacing per NDS chapter II,
• ASTM A36 Steel is assumed for steel side members 1i4 in.thick, and ASTM A653
tirade 33 Steel is assumed for steel side members less than 1/4 in. thick.
Total bolts required,; P/3947 lb=2.99;, USE 4 BOLTS