All Chapters Covered
SOLUTIONS
, Solutions Manual
to Structural Loads
2012 IBC and ASCE/SEI 7-10
This Solutions Manual was developed as a companion to the Structural Loads: 2012 IBC and
ASCE/SEI 7-10 textbook. To increase understanding of this material and for its most
effective use, readers should study the Structural Loads textbook and reference the
material as they read through this Solutions Manual.
To order additional copies of the Structural Loads textbook, click here.
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, CHAPTER 2
Load Combinations
2.1. Determine the strength design load combinations for a reinforced concrete
beam on a typical floor of a multistory residential building using the nominal
bending moments in Table 2.11. All bending moments are in foot-kips. Assume
the live load on the floor is less than 100 psf.
Table 2.11 Design Data for Problem 2.1
External Negative Positive Interior Negative
Dead load, D –13.3 43.9 –53.2
Live load, L –12.9 42.5 –51.6
SOLUTION
Table P2.1 Summary of Load Combinations Using Strength Design for Beam in
Problem 2.1
Load Combination
IBC Equation No. Equation Exterior Interior
Positive
Negativ Negativ
e e
16-1 1.4D –18.6 61.5 –74.5
16-2 1.2D + 1.6L –36.6 120.7 –146.4
16-3, 16-4, 16-5 1.2D + 0.5L –22.4 73.9 –89.6
16-6, 16-7 0.9D –12.0 39.5 –47.9
2.2. Determine the strength design load combinations for a steel beam that is part of
an ordinary moment frame in an office building using the nominal bending
moments and shear forces in Table 2.12. All bending moments are in foot-kips
and all shear forces are in kips. Assume the live load on the floor is less than
100 psf.
Table 2.12 Design Data for Problem 2.2
Bending Moment Shear Force
Support Midspan Support
Dead load, D –57.6 41.1 11.8
Live load, L –22.5 16.2 4.6
Wind, W 54.0 --- 4.8
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, 2 Solutions Manual to Structural Loads
SOLUTION
Table P2.2 Summary of Load Combinations Using Strength Design for Beam in
Problem 2.2
Load Combination
IBC
Equation Bending Moment Shear Force
Equatio
n No. Support Midspan Support
16-1 1.4D –80.6 57.5 16.5
16-2 1.2D + 1.6L –105.1 75.2 21.5
1.2D + 0.5L –80.4 57.4 16.5
16-3 1.2D + 0.5W –42.1 49.3 11.8
1.2D – 0.5W –96.1 49.3 16.6
1.2D + 1.0W + 0.5L –26.4 57.4 11.7
16-4
1.2D – 1.0W + 0.5L –134.4 57.4 21.3
16-5 1.2D + 0.5L –80.4 57.4 16.5
0.9D + 1.0W 2.2 37.0 5.8
16-6
0.9D – 1.0W –105.8 37.0 15.4
16-7 0.9D –51.8 37.0 10.6
2.3. Given the information in Problem 2.2, determine the basic allowable stress
design load combinations.
SOLUTION
Table P2.3 Summary of Load Combinations Using Basic Allowable Stress Design for
Beam in Problem 2.3
Load Combination
IBC
Equation Bending Moment Shear Force
Equatio
n No. Support Midspan Support
16-8, 16-10 D –57.6 41.1 11.8
16-9 D +L –80.1 57.3 16.4
16-11, 16-14 D + 0.75L –74.5 53.3 15.3
D + 0.6W –25.2 41.1 8.9
16-12
D – 0.6W –90.0 41.1 14.7
D + 0.75(0.6W) + 0.75L –50.2 53.3 13.1
16-13
D – 0.75(0.6W) + 0.75L –98.8 53.3 17.4
0.6D + 0.6W –2.2 24.7 4.2
16-15
0.6D – 0.6W –67.0 24.7 10.0
16-16 0.6D –34.6 24.7 7.1
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SOLUTIONS
, Solutions Manual
to Structural Loads
2012 IBC and ASCE/SEI 7-10
This Solutions Manual was developed as a companion to the Structural Loads: 2012 IBC and
ASCE/SEI 7-10 textbook. To increase understanding of this material and for its most
effective use, readers should study the Structural Loads textbook and reference the
material as they read through this Solutions Manual.
To order additional copies of the Structural Loads textbook, click here.
@@
SeSiesimiciiicsiosloaltaiotinon
sm
, CHAPTER 2
Load Combinations
2.1. Determine the strength design load combinations for a reinforced concrete
beam on a typical floor of a multistory residential building using the nominal
bending moments in Table 2.11. All bending moments are in foot-kips. Assume
the live load on the floor is less than 100 psf.
Table 2.11 Design Data for Problem 2.1
External Negative Positive Interior Negative
Dead load, D –13.3 43.9 –53.2
Live load, L –12.9 42.5 –51.6
SOLUTION
Table P2.1 Summary of Load Combinations Using Strength Design for Beam in
Problem 2.1
Load Combination
IBC Equation No. Equation Exterior Interior
Positive
Negativ Negativ
e e
16-1 1.4D –18.6 61.5 –74.5
16-2 1.2D + 1.6L –36.6 120.7 –146.4
16-3, 16-4, 16-5 1.2D + 0.5L –22.4 73.9 –89.6
16-6, 16-7 0.9D –12.0 39.5 –47.9
2.2. Determine the strength design load combinations for a steel beam that is part of
an ordinary moment frame in an office building using the nominal bending
moments and shear forces in Table 2.12. All bending moments are in foot-kips
and all shear forces are in kips. Assume the live load on the floor is less than
100 psf.
Table 2.12 Design Data for Problem 2.2
Bending Moment Shear Force
Support Midspan Support
Dead load, D –57.6 41.1 11.8
Live load, L –22.5 16.2 4.6
Wind, W 54.0 --- 4.8
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, 2 Solutions Manual to Structural Loads
SOLUTION
Table P2.2 Summary of Load Combinations Using Strength Design for Beam in
Problem 2.2
Load Combination
IBC
Equation Bending Moment Shear Force
Equatio
n No. Support Midspan Support
16-1 1.4D –80.6 57.5 16.5
16-2 1.2D + 1.6L –105.1 75.2 21.5
1.2D + 0.5L –80.4 57.4 16.5
16-3 1.2D + 0.5W –42.1 49.3 11.8
1.2D – 0.5W –96.1 49.3 16.6
1.2D + 1.0W + 0.5L –26.4 57.4 11.7
16-4
1.2D – 1.0W + 0.5L –134.4 57.4 21.3
16-5 1.2D + 0.5L –80.4 57.4 16.5
0.9D + 1.0W 2.2 37.0 5.8
16-6
0.9D – 1.0W –105.8 37.0 15.4
16-7 0.9D –51.8 37.0 10.6
2.3. Given the information in Problem 2.2, determine the basic allowable stress
design load combinations.
SOLUTION
Table P2.3 Summary of Load Combinations Using Basic Allowable Stress Design for
Beam in Problem 2.3
Load Combination
IBC
Equation Bending Moment Shear Force
Equatio
n No. Support Midspan Support
16-8, 16-10 D –57.6 41.1 11.8
16-9 D +L –80.1 57.3 16.4
16-11, 16-14 D + 0.75L –74.5 53.3 15.3
D + 0.6W –25.2 41.1 8.9
16-12
D – 0.6W –90.0 41.1 14.7
D + 0.75(0.6W) + 0.75L –50.2 53.3 13.1
16-13
D – 0.75(0.6W) + 0.75L –98.8 53.3 17.4
0.6D + 0.6W –2.2 24.7 4.2
16-15
0.6D – 0.6W –67.0 24.7 10.0
16-16 0.6D –34.6 24.7 7.1
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