a. If the beam shown is uncracked, calculate the stress in concrete at the top and bottom extreme fibers under a positive bending moment of 80k.ft.

Maximum strain in concrete taken for design is 0.0040 while strain in deformed bar is calculated with an offset at 0.0015. A beam has an effective depth of 550 mm and is reinforced with Fe415 steel. What would be the value of limiting neutral axis depth (in mm) for this beam?

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.