

RCC Structures Design - Engineering
Q1: P is the prestressed force applied to the tendon of a rectangular prestressed beam whose area of cross section is A and sectional modulus is Z. The maximum stress f in the beam, subjected to a maximum bending moment M, isA ![]() B ![]() C ![]() D ![]() E ![]() ANS:C - To calculate the maximum stress (f) in a prestressed beam subjected to a maximum bending moment (M), we need to consider both the effects of prestress force (P) and the external bending moment (M). The maximum stress in the beam can be determined using the flexure formula for a rectangular beam: f=ZM Where:
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