A flat roof is subject to the following uniformly distribute…

A flat roof is subject to the following uniformly distributed loads: a dead load of 32 psf (pounds per square foot of roof surface), a roof live load of 14 psf, a snow load of 15 psf, and a wind load of 19 psf downward. If LRFD is used, what is the required nominal strength of the member for a resistance factor φ of 0.75?

A column in a building is subjected to the following load ef…

A column in a building is subjected to the following load effects. If LRFD is used, what is the required nominal strength of the column for a resistance factor φ of 0.50?6 kips compression from dead load7 kips compression from roof live load5 kips compression from snow9 kips compression from rain accumulated on the roof8 kips compression from wind