Holes should only be placed in a beam web at sections of _______ .

Using ASD, determine the nominal flexural strength of a W12x58 beam made from A992 steel that has lateral support at 30-ft intervals. Assume Cb = 1.0.

Using LRFD, determine the nominal flexural strength of a W14x53 beam made from A992 steel that has lateral support at 20-ft intervals. Assume Cb = 1.0.

Using LRFD, determine the design shear strength of a W18x50 made from A992 steel.

Determine the nominal shear strength of a W16x36 of A36 steel.

Using LRFD, determine the nominal flexural strength of a W16x45 beam made from A992 steel that has lateral support at 4-ft intervals. Assume Cb = 1.0.

Pick the lightest W-shape with an unbraced length of 19 ft that can support a bending moment of 1,080 kip-ft (LRFD).

Determine the maximum deflection for a W14x90 beam made of A572 Grade 42 steel. Let w = 560 lb/ft and L = 24 ft. Ignore the weight of the beam.

Determine the magnitude of the largest shear force (consider both positive and negative peaks). Use a = 16 ft, b = 6 ft, and w = 10 kips/ft. The reaction forces for this beam are Ay = 68.75 kips and By = 151.25 kips.

Determine the limiting laterally unbraced length for the limit state of yielding, Lp, for a W6x20 with a simple span of 6 ft if lateral bracing for the compression flanges is provided at the ends only. Use Fy = 80 ksi.