Note: Use load factors of 1.0 for D and L for this problem. The beam shown below is made from a homogeneous linear-elastic material. Neglecting the contribution of reinforcing steel, calculate stresses in the top and bottom fibers of the beam for the section of maximum moment (follow common bending theory assumptions from strength of materials). Compute the internal compression and tension force (force couple) acting in this section and their location. Compare the maximum tensile stress found for this beam with the tension strength of concrete (modulus of rupture - see Materials handout). Use fe= 4000 psi. Would the beam be expected to crack at the section of maximum moment? w, =0.8 kip/ft 21.5" 3-# 8 ... 2.5" 12" 20' - 0" Cross Section

Note: Use load factors of 1.0 for D and L for this problem. The beam shown below is made from a homogeneous linear-elastic material. Neglecting the contribution of reinforcing steel, calculate stresses in the top and bottom fibers of the beam for the section of maximum moment (follow common bending theory assumptions from strength of materials). Compute the internal compression and tension force (force couple) acting in this section and their location. Compare the maximum tensile stress found for this beam with the tension strength of concrete (modulus of rupture - see Materials handout). Use fe= 4000 psi. Would the beam be expected to crack at the section of maximum moment? w, =0.8 kip/ft 21.5" 3-# 8 ... 2.5" 12" 20' - 0" Cross Section

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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