Author: Anonymous

Determine Cb for the member if the moments at the top and bottom are 100 ft-kip and 550 ft-kip, respectively.

Using ASD, determine whether the following member satisfies the appropriate AISC interaction equation. Do not consider moment amplification. The loads are 50% dead and 50% live load. Bending is about the x-axis.Given:    W14x82, A992    Applied axial compression force = 280 kip    Applied constant bending moment = 180 ft-kip    L = 15 ft    pin-pin connected    laterally braced at ends    Kx = Ky = 1    Cb = 1

Microglia

Determine Cb for the member if the moments at the top and bottom are 270 ft-kip and 460 ft-kip, respectively.

Neurotransmission in the sympathetic nervous system is:

Compute the LRFD moment amplification factor B1 for the W18x65 made from ASTM A992 steel with L = 14 ft, P = 300 kip, M = 210 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 consistent with the effective length method, so the flexural rigidity was unreduced.

Compute the value of Cm for a beam-column with a moment of 420 kip-ft at the top and a moment of 220 kip-ft at the bottom.

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

Where does the maximum moment amplification occur for single-curvature bending?

Compute the LRFD elastic critical buckling strength, Pe1, for the W8x58 made from ASTM A992 steel with L = 15 ft, P = 490 kip, M = 240 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.