Blog

A column in a building is subjected to the following load effects. If LRFD is used, what is the value of required strength, Ru?11 kips compression from dead load5 kips compression from roof live load9 kips compression from snow6 kips compression from wind

For ASD, the safety factor for fracture is larger than the safety factor for yielding.

A 1.15 in. x 11.2 in. plate is connected to a gusset with eight 1 in. bolts. Standard sizing is used for the bolt holes. What is the gross area of the plate?

A 0.54 in. x 9.3 in. plate is connected to a gusset with six 1-1/4 in. bolts. Standard sizing is used for the bolt holes. What is the net area of the plate?

Cold-formed steel has reduced ductility compared to hot-rolled steel.

Rain loads are not part of the ASD load combinations.

The symbol S represents _______.

A 3/4 in. x 10.0 in. plate is connected to a gusset with six 1-1/4 in. bolts. Standard sizing is used for the bolt holes. The steel is ASTM A572 Grade 60: Fy = 60 ksi, Fu = 75 ksi. Assume that Ae = An. Compute the allowable strength for ASD.

A 0.85 in. x 6.9 in. plate is connected to a gusset with four 1/2 in. bolts. Standard sizing is used for the bolt holes. What is the net area of the plate?

A 3/4 in. x 6 in. plate must resist a service dead load of 25 kips and a service live load of 40 kips in tension. The plate is connected to a gusset with four 1/2 in. bolts. Standard sizing is used for the bolt holes. The steel is ASTM A572 Grade 42: Fy = 42 ksi, Fu = 60 ksi. Assume that Ae = An. Using LRFD, does the plate have enough strength?