A rectangular beam has a width of 300 mm and an effective depth to the centroid of the tension reinforcement of 500 mm. The tension reinforcement consist of 6-25 mm ø bars placed in two rows. Compression reinforcement consisting of 2-25 mm ø bars placed 62.5 mm from the compression face of the beam.f’c= 27.58 MPa, fy= 413.7 MPa. a)Determine the depth of the compression block b)Determine the maximum steel ratio c)Determine the design moment capacity of the beam

A rectangular concrete beam is 12 in. wide and has an effective depth (d) of 18 in. Compression steel is located 2.5 in. from the compression face of the beam and is two No. 8 bars. Calculate the design moment capacity of the beam, for f'c = 4,000 psi and fy = 60,000 psi. Solve for the following tension reinforcement amounts: a b C Three No. 10 bars in one layer Four No. 10 bars in two layers (Two No. 10 bars in each layer) Six No. 9 bars in two layers (Three No. 9 bars in each layer)

The concrete column is reinforced using four steelreinforcing rods, each having a diameter of 25 mm.Determine the stress in the concrete and the steel if thecolumn is subjected to an axialload of 1200 kN. Est = 200 GPa,Ec = 25 GPa.

The hollow core panel is made from plain stone concrete. Determine the dead weight of the panel in kips. The holes each have a diameter of 5 inches. The unit weight of concrete is 144 lb/ft³. 10 in. | -12 in 12 in 12 in 12 in 12 in 12 in. 12 ft

A rectangular reinforced concrete beam exposed to earth has a total depth of 600 mm and a width o 350 mm. It is reinforced with 3- 22 mm diameter bar (fy' = 315 MPa) in compression and 5 - 25 mm diameter bar in tension (fy= 345 MPa). fc' = 28 MPa a. determine the effective depth of the beam b. determine the depth of compression block c. check if steel yields for both tension and compression reinforcement d. determine the ultimate capacity of the beam

A reinforced concrete T-beam has the following properties: flange width, b = 1370 mm; flange thickness, tf = 130 mm, width bw = 300 mm, effective depth, d = 610 mm, As = 2950 mm², f’c = 28 MPa, fy = 414 MPa.   1. Which of the following most nearly gives the depth of the compression block of from the top of the beam?  a. 37.5 mm b. 95.5 mm c. 45.8 mm d. 115.4 mm 2. Which of the following most nearly gives the total compressive force in concrete?  a. 1380 kN b. 1220 kN c. 1840 kN d. 1540 kN 3. Which of the following most nearly gives the ultimate moment capacity of the section in kN-m?  a. 450 b. 550 c. 750 d. 650

The column is constructed from high-strength concrete and eight A992 steel reinforcing rods. The column is subjected to an axial force of P=210 kip. Each rod has a diameter of 1 in.in. For A992 steel, Est=29.0(103)ksi, and for high-strength concrete, Ec=4.20(103)ksi. Determine the average normal stress in the concrete and in each rod. (Please type answer no write by hend)