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A column in a building is subjected to the following load effects:9 kips compression from dead load5 kips compression from roof live load6 kips compression from snow7 kips compression from 3 inches of rain accumulated on the roof8 kips compression from wind

Repeat Problem 2-1 without the possibility of rain accumulation on the roof.

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?

b. What is the required design strength of the column?

c. What is the required nominal strength of the column for a resistance factor of 0.90

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?

e. What is the required nominal strength of the column for a safety factor of 1.67?

Fig: 1