A normal-weight plain concrete beam is 6 in. x 12 in. is simply supported on a span of 4 ft and is subjected to a midspan concentrated load of 4500 lb. Assume f’c = 3,000 psi, and concrete unit weight is 150 lb/cf. Calculate the maximum concrete tensile stress using both methods, and compare it with the value for modulus of rupture (fr) using the ACIrecommended value based on f’c.

A normal-weight plain concrete beam is 6 in. x 12 in. is simply supported on a span of 4 ft and is subjected to a midspan concentrated load of 4500 lb. Assume f’c = 3,000 psi, and concrete unit weight is 150 lb/cf. Calculate the maximum concrete tensile stress using both methods, and compare it with the value for modulus of rupture (fr) using the ACIrecommended value based on f’c.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter5: Beams

Section: Chapter Questions

Problem 5.4.2P

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