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Please complete the 3 design problems. Problem 1. Select the lightest W12 section available to support...
Select the lightest C section that will safely support the service tensile loads PD = 50 k and PL = 65 k. The member is to be 14 ft long and is assumed to have two lines of holes for 4-in bolts in the web. Assume that there are at least three holes in each line 3-in on center. Use A36 steel. Neglect block shear.
Problem 3: Design of Steel Beam for Bending with Varying Unbraced Lengths Select the lightest A992 steel W-shape for the beam shown below using LRFD. Only consider design (neglect shear a bracing situations: a. Continuous lateral support of the compression flange b. Lateral support at beam ends and at the point of the concentrated load c. Lateral support only at beam ends PD = 10k PL-20k WD-3.33 k/ft w, = 6.67 k/ft 10' 20' 30'
Problem 4 Select a C10 shape to be used as a 14 ft long tension member that will safely support the service loads: PD = 25 k, PL = 80 k, and Ps = 40 k (snow). The connection is through the web with two lines of three 4-in Ø bolts 3-in on center. Use A36 steel. Neglect block shear.
Problem 1 (100 pts) Select the lightest W24 beam section with Fy = 50 ksi using LRFD for the following span and loading. The unbraced length of the compression flange is 30 ft (Lb = 30'). Consider Cb > 1. The given dead load does not include beam weight. Verify that the selected beam has adequate shear strength. Maximum allowable deflection due to live load is L720. Maximum allowable deflection due to total load is L/360. WD = 1.2 k/ft...