For this exercise consider the single-bay building framing plan shown below. The thickness of the one- way slab spanning between the beams has been determined to be five inches. • • Interior beam design: Assume all beams are simple span and design the typical interior floor beams for moment. Design the beams as rectangular sections. Edge girder: Assume the edge girders are simple span and design the girders for moment. Design the girders as rectangular sections. Use a design (unfactored) live load of 80 pounds per square foot. Include the weight of the slab, beams, and girders in the dead load plus include an additional 10 pounds per square foot of superimposed dead load (weight of ceiling, lights, mechanical ducts, and floor finish). Assume the width of the interior beams is twelve inches. The columns are 15" x 15" and the width of the beams and girders framing to the columns will be the same width as the columns (that is, fifteen inches). Use f'c = 4 ksi and fy = 60 ksi. Include a sketch describing the final beam and girder sections. On your sketch, be sure to indicate - but do not design - the shear reinforcement (that is, the stirrups). edge girder (typ. of 2) 35'-0 edge beam (typ. of 2) 4 spaces @ 8'-0" = 32'-0 Interior beam (typ. of 3) 15"x15" column below (typ. of 4)

A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The beams are spaced at 7 feet 6 inches, and the span length is 30 feet. The superimposed loads are as follows: construction load = 20 psf, partition load = 10 psf, weight of ceiling and light fixtures = 5 psf, and live load = 60 psf, A992 steel is used, and fc=4 ksi. Determine whether the flexural strength is adequate. a. Use LRFD. b. Use ASD.

If the soil-bearing pressure is 1500 psf and the concrete has a strength of 2500 psi, what size pier is needed to support a load of 4600 lb?

Use the composite beam tables and select a W-shape and stud anchors for the following conditions: Span length = 18 6 Beam spacing = 9 ft Total slab thickness = 51 2 in. (the slab and deck combination weighs 57 psf). Lightweight concrete with a unit weight of 115 pcf is used Construction load = 20 psf Partition load = 20 psf Live load = 225 psf Fy=50 ksi and fc=4 ksi A cross section of the formed steel deck is shown in Figure P9.8-9. The maximum live-load deflection cannot exceed L/360 (use a lower-bound moment of inertia). a. Use LRFD. b. User ASD.