Pipe Bridge Design 2t1c5o
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Pipe Bridge Design
Pipe #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Diameter of Pipe (mm)
Thickness of Pipe (mm)
Diameter of Insulation (mm)
Unit Weight of Content (kg/cu.m)
Unit Weight of Insulation (kg/cu.m)
125 65 65 65 80 65 100 65 65 65 80 65 100
4 4 4 4 4 4 4 4 4 4 4 4 4
225 165 165 165 180 165 200 165 165 165 180 165 200
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314
Cross-Sectional Area (sq.mm)
Weight of Bridge (kN/m)
11200
1.21
Total Weight (kg/m)
Total Weight (kN/m)
15.56 5.53 5.53 5.53 7.51 5.53 10.69 5.53 5.53 5.53 7.51 5.53 10.69 0.00 0.00
0.152644147 0.054236308 0.054236308 0.054236308 0.073637545 0.054236308 0.104899204 0.054236308 0.054236308 0.054236308 0.073637545 0.054236308 0.104899204 0 0
0.94360811 Main Bar Dimensions (mm) Bridge Info
L
W
t
Number of Main Bars
75
75
10
8
Given: Bridge Post Spacing, L=
14.00
m
Total Weight, W= Factored Weight, Wu, (1.25 x W)=
2.15 2.69
kN/m kN/m
Ultimate Moment, Mu, (WuL^2/8)=
65.97
kN-m
Computations:
Design: Main Bars Angle Bar H= Angle Bar W= Angle Bar t= Number of Angle Bars= Total Cross Sectional Area= Moment of Inertia= Steel Yield Strength, Fy= Allowable Bending Stress, Fb, (0.6 Fy)= Allowable Deflection, L/360= Actual Bending Stress, fb, (MC/I)= Actual Deflection= Assessment on Bending Stress= Assessment on Deflection=
75 75 10 8 11200 36,773,333.33
mm mm mm pcs mm^2 mm^4
235 141 39
MPa MPa mm
134.551 7.033 ok ok
Mpa mm
Diagonal Angle/Flat Bar H= Angle Bar W= Angle Bar t= Cross-Sectional Area= Span of Diagonal = Maximum Tension/Compression=
50 50 5 475 1.344 1.810
Steel Yield Strength, Fy= Allowable Axial Stress, Fa, (0.6 Fy)=
235.000 141
MPa MPa
4 ok
MPa
8 75 75 10
pcs x x mm THK Angle Bar
Actual Axial Stress= Assessment on Axial Stress=
mm mm mm mm^2 m kN
Summary: For Main Bar, Use:
For Diagonal Bar, Use: 50.000 50.000 5.000
x mm THK
Pipe Bridge Design Given: Average weight of insulated pipes= Average weight of uninsulated pipes= Average Weight of Bridge=
0.292 0.125 0.679
Number of insulated pipes= Number of uninsulated pipes= Bridge Post Spacing, L=
1 1 11.00
Total Weight, W= Factored Weight, Wu, (1.5 x W)=
1.10 1.64
Ultimate Moment, Mu, (WuL^2/8)=
24.86
Computations:
Design: Main Bars Angle Bar H= Angle Bar W= Angle Bar t= Number of Angle Bars= Total Cross Sectional Area= Moment of Inertia= Steel Yield Strength, Fy= Allowable Bending Stress, Fb, (0.6 Fy)= Allowable Deflection, L/360=
50 50 6 8 4512 6,671,744.00 345 207 31
Actual Bending Stress, fb, (MC/I)= Actual Deflection= Assessment on Bending Stress= Assessment on Deflection=
186.293 9.017 ok ok
Angle/Flat Bar H= Angle Bar W= Angle Bar t= Cross-Sectional Area= Span of Diagonal = Maximum Tension/Compression=
50 0 5 225 1.344 1.104
Steel Yield Strength, Fy= Allowable Axial Stress, Fa, (0.6 Fy)=
248.000 149
Diagonal
Actual Axial Stress= Assessment on Axial Stress=
5 ok
Summary: For Main Bar, Use: 8 50 50 6 For Diagonal Bar, Use: 50.000 0.000 5.000
kN/m kN/m kN/m pcs pcs m
kN/m kN/m kN-m
mm mm mm pcs mm^2 mm^4 MPa MPa mm Mpa mm
mm mm mm mm^2 m kN MPa MPa MPa
pcs x x mm THK Angle Bar
x mm THK
Pipe #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Diameter of Pipe (mm)
Thickness of Pipe (mm)
Diameter of Insulation (mm)
Unit Weight of Content (kg/cu.m)
Unit Weight of Insulation (kg/cu.m)
125 65 65 65 80 65 100 65 65 65 80 65 100
4 4 4 4 4 4 4 4 4 4 4 4 4
225 165 165 165 180 165 200 165 165 165 180 165 200
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314 1314
Cross-Sectional Area (sq.mm)
Weight of Bridge (kN/m)
11200
1.21
Total Weight (kg/m)
Total Weight (kN/m)
15.56 5.53 5.53 5.53 7.51 5.53 10.69 5.53 5.53 5.53 7.51 5.53 10.69 0.00 0.00
0.152644147 0.054236308 0.054236308 0.054236308 0.073637545 0.054236308 0.104899204 0.054236308 0.054236308 0.054236308 0.073637545 0.054236308 0.104899204 0 0
0.94360811 Main Bar Dimensions (mm) Bridge Info
L
W
t
Number of Main Bars
75
75
10
8
Given: Bridge Post Spacing, L=
14.00
m
Total Weight, W= Factored Weight, Wu, (1.25 x W)=
2.15 2.69
kN/m kN/m
Ultimate Moment, Mu, (WuL^2/8)=
65.97
kN-m
Computations:
Design: Main Bars Angle Bar H= Angle Bar W= Angle Bar t= Number of Angle Bars= Total Cross Sectional Area= Moment of Inertia= Steel Yield Strength, Fy= Allowable Bending Stress, Fb, (0.6 Fy)= Allowable Deflection, L/360= Actual Bending Stress, fb, (MC/I)= Actual Deflection= Assessment on Bending Stress= Assessment on Deflection=
75 75 10 8 11200 36,773,333.33
mm mm mm pcs mm^2 mm^4
235 141 39
MPa MPa mm
134.551 7.033 ok ok
Mpa mm
Diagonal Angle/Flat Bar H= Angle Bar W= Angle Bar t= Cross-Sectional Area= Span of Diagonal = Maximum Tension/Compression=
50 50 5 475 1.344 1.810
Steel Yield Strength, Fy= Allowable Axial Stress, Fa, (0.6 Fy)=
235.000 141
MPa MPa
4 ok
MPa
8 75 75 10
pcs x x mm THK Angle Bar
Actual Axial Stress= Assessment on Axial Stress=
mm mm mm mm^2 m kN
Summary: For Main Bar, Use:
For Diagonal Bar, Use: 50.000 50.000 5.000
x mm THK
Pipe Bridge Design Given: Average weight of insulated pipes= Average weight of uninsulated pipes= Average Weight of Bridge=
0.292 0.125 0.679
Number of insulated pipes= Number of uninsulated pipes= Bridge Post Spacing, L=
1 1 11.00
Total Weight, W= Factored Weight, Wu, (1.5 x W)=
1.10 1.64
Ultimate Moment, Mu, (WuL^2/8)=
24.86
Computations:
Design: Main Bars Angle Bar H= Angle Bar W= Angle Bar t= Number of Angle Bars= Total Cross Sectional Area= Moment of Inertia= Steel Yield Strength, Fy= Allowable Bending Stress, Fb, (0.6 Fy)= Allowable Deflection, L/360=
50 50 6 8 4512 6,671,744.00 345 207 31
Actual Bending Stress, fb, (MC/I)= Actual Deflection= Assessment on Bending Stress= Assessment on Deflection=
186.293 9.017 ok ok
Angle/Flat Bar H= Angle Bar W= Angle Bar t= Cross-Sectional Area= Span of Diagonal = Maximum Tension/Compression=
50 0 5 225 1.344 1.104
Steel Yield Strength, Fy= Allowable Axial Stress, Fa, (0.6 Fy)=
248.000 149
Diagonal
Actual Axial Stress= Assessment on Axial Stress=
5 ok
Summary: For Main Bar, Use: 8 50 50 6 For Diagonal Bar, Use: 50.000 0.000 5.000
kN/m kN/m kN/m pcs pcs m
kN/m kN/m kN-m
mm mm mm pcs mm^2 mm^4 MPa MPa mm Mpa mm
mm mm mm mm^2 m kN MPa MPa MPa
pcs x x mm THK Angle Bar
x mm THK
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