Compute the ASD moment amplification factor B1 for the W10x88 made from ASTM A992 steel with L = 16 ft, P = 200 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 50% dead load and 50% 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 ASD moment amplification factor B1 for the W18x65 made from ASTM A992 steel with L = 13 ft, P = 280 kip, M = 230 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 40% dead load and 60% 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 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 LRFD moment amplification factor B1 for the W18x65 made from ASTM A992 steel with L = 16 ft, P = 230 kip, M = 220 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.

Which of the following is not a level of the spinal cord?

Determine Cb for the member if the moments at the top and bottom are 160 ft-kip and 450 ft-kip, respectively.

The depicted member would experience _______.

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.

Which of the following corresponds to the variable Pe1?

This technique involves determining the maximum bending moment through a first order analysis and then multiplying the result by an amplification factor to account for the secondary moment.