A beam is part of the framing system for the floor of an office building. The floor is sub- jected to both dead loads and live loads. The maximum moment caused by the service dead load is 45 ft-kips, and the maximum moment for the service live load is 63 ft-kips (these moments occur at the same location on the beam and can therefore be combined). a. If load and resistance factor design is used, determine the maximum factored bending moment (required moment strength). What is the controlling AISC load combination? b. What is the required nominal moment strength for a resistance factor o of 0.90? c. If allowable strength design is used, determine the required moment strength. What is the controlling AISC load combination? d. What is the required nominal moment strength for a safety factor 2 of 1.67?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Repeat Problem 2-1 without the possibility of rain accumulation on the proof.
A beam is part of the framing system for the floor of an office building. The floor is sub-
jected to both dead loads and live loads. The maximum moment caused by the service
dead load is 45 ft-kips, and the maximum moment for the service live load is 63 ft-kips
(these moments occur at the same location on the beam and can therefore be combined).
a. If load and resistance factor design is used, determine the maximum factored
bending moment (required moment strength). What is the controlling AISC load
combination?
b. What is the required nominal moment strength for a resistance factor o of 0.90?
c. If allowable strength design is used, determine the required moment strength.
What is the controlling AISC load combination?
d. What is the required nominal moment strength for a safety factor 2 of 1.67?
A tension member must be designed for a service dead load of 18 kips and a service
live load of 2 kips.
a. If load and resistance factor design is used, determine the maximum factored load
Transcribed Image Text:Repeat Problem 2-1 without the possibility of rain accumulation on the proof. A beam is part of the framing system for the floor of an office building. The floor is sub- jected to both dead loads and live loads. The maximum moment caused by the service dead load is 45 ft-kips, and the maximum moment for the service live load is 63 ft-kips (these moments occur at the same location on the beam and can therefore be combined). a. If load and resistance factor design is used, determine the maximum factored bending moment (required moment strength). What is the controlling AISC load combination? b. What is the required nominal moment strength for a resistance factor o of 0.90? c. If allowable strength design is used, determine the required moment strength. What is the controlling AISC load combination? d. What is the required nominal moment strength for a safety factor 2 of 1.67? A tension member must be designed for a service dead load of 18 kips and a service live load of 2 kips. a. If load and resistance factor design is used, determine the maximum factored load
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