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(Solved): A column in a building is subjected to the following load effects: 7 kips compression from dead load ...
A column in a building is subjected to the following load effects:
7 kips compression from dead load
5 kips compression from roof live load
6 kips compression from snow
7 kips compression from 3 inches of rain accumulated on the roof
8 kips compression from wind
a. If load and resistance factor design is used, determine the factored load (required strength) to be used in the design of the column. Which AISC load combination controls?
What is the value of required strength?
(Express your answer to three significant figures.)
R_(u)=, kips
b. What is the required design strength of the column?
(Express your answer to three significant figures.)
\phi R_(n)=, kips
c. What is the required nominal strength of the column for a resistance factor \phi of 0.90 ?
(Express your answer to three significant figures.)
R_(n)=, kips
d. If allowable strength design is used, determine the required load capacity (required strength) to be used in the design of the column. Which AISC load combination controls?
What is the value of required strength?
(Express your answer to three significant figures.)
R_(a)=, kips
e. What is the required nominal strength of the column for a safety factor \Omega of 1.67 ?
(Express your answer to three significant figures.)
R_(n)=, kips