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The various axial loads for a building column have been computed according to the applicable building code, with the following results: dead load =200k; load from roof=50k (roof live load); live load from floors (reduced as applicable for large floor area and multistory columns) =250k; compression wind=128k; tensile wind=104k; compression  earthquake=60k; and tensile earthquake=70k. Determine the critical design column load, Pu, using the LRFD load combinations.   LRFD: 1.) U=1.4D 2.) U=1.2D +1.6L + 0.5(Lr or S or R) 3.) U=1.2D + 1.6(Lr or S or R) + (L* or 0.5W) 4.) U= 1.2D + 1.0W + L* + 0.5 (Lr or S or R) 5.) U=1.2D + 1.0E + L* + 0.2(S) 6.) U= 0.9D + 1.0W 7.) U= 0.9D + 1.0E

The various axial loads for a building column have been computed according to the applicable building code, with the following results: dead load =200k; load from roof=50k (roof live load); live load from floors (reduced as applicable for large floor area and multistory columns) =250k; compression wind=128k; tensile wind=104k; compression  earthquake=60k; and tensile earthquake=70k. Determine the critical design column load, Pu, using the LRFD load combinations.   LRFD: 1.) U=1.4D 2.) U=1.2D +1.6L + 0.5(Lr or S or R) 3.) U=1.2D + 1.6(Lr or S or R) + (L* or 0.5W) 4.) U= 1.2D + 1.0W + L* + 0.5 (Lr or S or R) 5.) U=1.2D + 1.0E + L* + 0.2(S) 6.) U= 0.9D + 1.0W 7.) U= 0.9D + 1.0E

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The various axial loads for a building column have been computed according to the applicable building code, with the following results: dead load =200k; load from roof=50k (roof live load); live load from floors (reduced as applicable for large floor area and multistory columns) =250k; compression wind=128k; tensile wind=104k; compression  earthquake=60k; and tensile earthquake=70k. Determine the critical design column load, Pu, using the LRFD load combinations.

 

LRFD:

1.) U=1.4D

2.) U=1.2D +1.6L + 0.5(Lr or S or R)

3.) U=1.2D + 1.6(Lr or S or R) + (L* or 0.5W)

4.) U= 1.2D + 1.0W + L* + 0.5 (Lr or S or R)

5.) U=1.2D + 1.0E + L* + 0.2(S)

6.) U= 0.9D + 1.0W

7.) U= 0.9D + 1.0E

 

 

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