Blog

For reverse-curvature bending, maximum moment amplification occurs between the ends of the member.

Determine Cb for the member if the moments at the top and bottom are 290 ft-kip and 540 ft-kip, respectively.

An unbraced rigid frame depends on the transfer of moments at its joints for stability.

Compute the LRFD moment amplification factor B1 for the W18x65 made from ASTM A992 steel with L = 14 ft, P = 260 kip, M = 280 kip-ft, and Kx = Ky = 1.0. Bending is about the x axis. The member is part of a braced frame, and the given service loads are 30% dead load and 70% live load. The frame analysis was performed using the requirements for the approximate second-order analysis method meaning that a reduced stiffness was used.

Compute the value of Cm for a beam-column with a moment of 450 kip-ft at the top and a moment of 180 kip-ft at the bottom.

For reverse-curvature bending, maximum moment amplification occurs at the ends.

Determine Cb for the member if the moments at the top and bottom are 140 ft-kip and 430 ft-kip, respectively.

Determine Cb for the member if the moments at the top and bottom are 240 ft-kip and 520 ft-kip, respectively.

The depicted member would experience _______.

Compute the ASD elastic critical buckling strength, Pe1, for the W10x88 made from ASTM A992 steel with L = 12 ft, P = 300 kip, M = 200 kip-ft, and Kx = Ky = 1.0. Bending is about the x axis. The member is part of a braced frame, and the given service loads are 30% dead load and 70% live load. The frame analysis was performed consistent with the effective length method, so the flexural rigidity was unreduced.