A rectangular beam has the dimensions (see Figure) b- 12 in, h- 20 in, and d- 17 in. and is reinforced with three No. 9 (No. 29) bars so that As 3.00 in?. The concrete compressive strength fe is 4000 psi, and the tensile strength n bending (modulus of rupture) is 475 psi. The yield point of the steel f, is 60,000 psi. Determine the stress in the steel caused by a bending moment M- 10 ft-kips. 9-6.78 in, I-4067 in, Es- 29000000, E- 3600000 LI7 in. 20 in. 3 89 bars A,-3.00 in.) 3 in. 12 in.- Select one: a. 2525 psi b. 2412 psi C. 2615 psi d. 2817 nsi

A rectangular beam has the dimensions (see Figure) b- 12 in, h- 20 in, and d- 17 in. and is reinforced with three No. 9 (No. 29) bars so that As 3.00 in?. The concrete compressive strength fe is 4000 psi, and the tensile strength n bending (modulus of rupture) is 475 psi. The yield point of the steel f, is 60,000 psi. Determine the stress in the steel caused by a bending moment M- 10 ft-kips. 9-6.78 in, I-4067 in, Es- 29000000, E- 3600000 LI7 in. 20 in. 3 89 bars A,-3.00 in.) 3 in. 12 in.- Select one: a. 2525 psi b. 2412 psi C. 2615 psi d. 2817 nsi

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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