Solutions Manual to Structural Load Determination 2018 and 2021 IBC and ASCESEI 7-16 by Fanella

AllChaptersCovered
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SOLUTIONS

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StructuralLoads
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2012IBCandASCE/SEI7-10 n n n n




This Solutions Manual was developed as a companion to the Structural Loads: 2012 IBC and
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ASCE/SEI 7-10 textbook. To increase understanding of this material and for its most effective
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use, readers should study the Structural Loads textbook and reference the material as they
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read through this Solutions Manual.
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ToorderadditionalcopiesoftheStructuralLoadstextbook, click here.
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, CHAPTER 2
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LoadCombinations n




2.1. Determine the strength design load combinations for a reinforced concrete beam on a typical
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floor of a multistory residential building using the nominal bending moments in Table 2.11.
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All bending moments are in foot-kips. Assume the live load on the floor is less than 100 psf.
n n n n n n n n n n n n n n n n n n




Table 2.11 Design Data for Problem 2.1
n n n n n n




External Negative n Positive Interior Negative n




Dead load, D n n –13.3 43.9 –53.2
Live load, L n n –12.9 42.5 –51.6


SOLUTION

Table P2.1 Summary of Load Combinations Using Strength Design for Beam in Problem
n n n n n n n n n n n n




2.1 n




Load Combination n




IBC Equation No. Equation Exterior Interior
Positive
n n




Negativ
n Negativ
n




e e
16-1 1.4D –18.6 61.5 –74.5
16-2 1.2D + 1.6L n n –36.6 120.7 –146.4
16-3, 16-4, 16-5 n n 1.2D + 0.5L n n –22.4 73.9 –89.6
16-6, 16-7 n 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
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moment frame in an office building using the nominal bending moments and shear forces in
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Table 2.12. All bending moments are in foot-kips and all shear forces are in kips. Assume the
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live load on the floor is less than 100 psf.
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Table 2.12 Design Data for Problem 2.2
n n n n n n




Bending Moment n Shear Force n




Support Midspan Support
Dead load, D n n –57.6 41.1 11.8
Live load, L n n –22.5 16.2 4.6
Wind, W n  54.0
n ---  4.8
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, 2 Solutions Manual to Structural Loads
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SOLUTION

Table P2.2 Summary of Load Combinations Using Strength Design for Beam in Problem
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2.2 n




Load Combination n



IBC Equation
Equation Bending Moment Shear Force
n




No.
n n

n


Support Midspan Support
16-1 1.4D –80.6 57.5 16.5
16-2 1.2D + 1.6L n n –105.1 75.2 21.5
1.2D + 0.5L n n –80.4 57.4 16.5
16-3 1.2D + 0.5W n n –42.1 49.3 11.8
1.2D – 0.5W n n –96.1 49.3 16.6
1.2D + 1.0W + 0.5L
n n n n –26.4 57.4 11.7
16-4
1.2D – 1.0W + 0.5L
n n n n –134.4 57.4 21.3
16-5 1.2D + 0.5L n n –80.4 57.4 16.5
0.9D + 1.0W n n 2.2 37.0 5.8
16-6
0.9D – 1.0W n n –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
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combinations.
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SOLUTION

Table P2.3 SummaryofLoadCombinations Using BasicAllowable StressDesign for Beam
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in Problem 2.3 n n n




Load Combination n



IBC Equation
Equation Bending Moment Shear Force
n




No.
n n

n


Support Midspan Support
16-8, 16-10 n D –57.6 41.1 11.8
16-9 D+L
n n –80.1 57.3 16.4
16-11, 16-14 n D + 0.75L
n n –74.5 53.3 15.3
D + 0.6W
n n –25.2 41.1 8.9
16-12
D – 0.6W
n n –90.0 41.1 14.7
D + 0.75(0.6W) + 0.75L
n n n n –50.2 53.3 13.1
16-13
D – 0.75(0.6W) + 0.75L
n n n n –98.8 53.3 17.4
0.6D + 0.6W n n –2.2 24.7 4.2
16-15
0.6D – 0.6W n n –67.0 24.7 10.0
16-16 0.6D –34.6 24.7 7.1




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