Chapter 7, Problem 7.16PFS

Determine the factored axial load for the short, spirally reinforced circular column according to NSCP/ACI Code limitations. Assume the following: f’c=27.6 MPa, fy= 420 MPa, and D= 350 mm. Use 8- D28

Design a round spiral column to support an axial dead load of 500 KN and an axial live load of 650 KN. Assume that 3% longitudinal steel is desired, f'c = 35 MPa and fy = 420 MPa. Use 16 mm diameter main reinforcement. determine the spacing of 10 mm spiral (fy = 275 MPa) with 30 mm steel covering.

8) The nominal axial strength of an axially loaded reinforced concrete tied column is 0.80[0.85f'cAg + As(fy - 0.85f'c)]  True  False

Design a square base plate with A36 steel for a W10 x 60 column with a service dead load of 175 k and a service live load of 275 k.The concrete 28-day strength, f'c, is 3000 psi.The base plate rests on a 12 ft 0 in x 12 ft 0 in concrete footing. Use the LRFD and ASD design methods.

Design a rectangular reinforced beam that is simply supported with a span of 15 ft. The beam is to carry a service dead load of 1.27 k/ft and service live load of 2.15 k/ft. Use fy = 60,000 psi and f’c = 4,000 psi and Wu=1.2DL + 1.6LL. Sketch the beam section.

The uniformly distributed live load on the floor plan in Figure P2.4 is 60 lb/ft2 . Establish the loading for mem- bers (a) floor beam B3, (b) floor beam B4, (c) girder G3, and girder G4. Consider the live load reduction if permit- ted by the ASCE standard.

A rectangular beam is 16 in. wide and has an effective depth of 26 inches. The beam contains NO. 3 stirrups at 13 in. Calculate nominal shear capacity of the section.  f'c=4000 psi, fy=60,000 PSi.

Design a square tied short column to carry an axial dead load of 180 k (800 KN) and an axial live load of 160 k (712 kN). Determine the required ties and draw the cross-section showing the bar arrangement. Use f = 5 ksi (35 MPa), fy = 60 ksi (420 MPa), and a steel percentage of 3 percent.

An eight meter simply supported beam carries a superimposed dead load of 6kN/m and aservice live load of 15kN/m. The beam has a width and total depth of 400mm and 550mm respectively.It is reinforced with five diameter 25mm bars and 10mm stirrups. Material properties are fc'=27.60MPaand fy=421.60MPa. 1 Using the detailed calculation of Vc, determine the nominal shear strength of concrete at 0.60m from the support.   a 133.3220 kN b 153.6610 kN c 180.3630 kN d 110.5770 kN   2 Using the detailed calculation of Vc, determine the shear carried by stirrups at 0.90m from the support. *   a 53.7734 kN b 65.4637kN c 58.3913 kN d 67.2129 kN