The beam section shown is subjected to a bending moment of 65 k-ft. Use normal-weight concrete with compressive strength of 4000 psi. Assume the concrete is cracked. Determine: a) The location of the neutral axis. b) Cracked moment of inertia. c) The maximum bending stresses in concrete and steel. all ell all

Given the following properties of beam: b = 250 mm, d = 325 mm and h = 400 mm. a) Assuming the concrete is uncracked, compute the bending stresses (in MPa) in the extreme fibers of the beam at M = 100 kN-m. Blank 1 b) Determine the cracking moment (in kNm) for the section if f'c = 28 MPa. Blank 2 c) Compute the flexural stresses in the concrete and steel of the beam using the transformed-area method at M = 100 kN-m, n = 9 and reinforced with 5-16 mm diameter tension bars. Unit must be in MPa. fc = _Blank 3, fs =__________ Blank 4

AW18 x 40 standard steel shape is used to support the loads shown on the beam. Assume P = 25 kips, w = 3.6 kips/ft, LAB = 5.6 ft, LBC = 5.6 ft, and LcD = 16.8 ft. Determine the magnitude of the maximum bending stress in the beam. LAB Answer: Omax = i B LBC C ksi W LCD D ZOQ Q 214% TOP BARI ENG 11:41 am 35 28/04/2023 8 cores

The end block of a post-tensioned beam is 100 mm x 150 mm. A prestressing cable consisting of 7 wires of 6 mm dia strand and stressed to 800 MPa has to be anchored at the center of the block. The anchorage plate is 75 mm x 75 mm. If the concrete mix is M45 and the permissible bending stress in M. S. steel plate is 165 MPa, determine the thickness of the anchorage plate.

PROBLEM TO SOLVE: 600 mm 400 mm 6-25mm diam. 90 mm Using fc' = 28 MPa, Mmax = +320 kNm Determine the following: a. Cracking Moment (kNm) b. Compressive Stress felt by concrete (MPa) c. Tension Stress felt by the tension bars (MPa) d. Moment of Inertia under critical condition e. Demand Capacity Ratio of Concrete under Compression Stress f. Compression force on concrete (kN) g. Distance of the compression concrete force from the neutral axis (mm)