For the cross section shown below, the material and sectional properties are given as follows: Determine the modular ratio. The concrete modulus of elasticity can be estimated by  [psi] where  must be in unit psi. (b) Draw the transformed section. (C) Show that the cross-section is elastic and does not have cracks when a bending moment of 1,000 kips-in is applied. Also, given the bending moment, find the maximum stress in concrete and steel. The neutral axis is at 11.05 in. from the top surface, and the moment of inertia around the neutral axis is 26676 in4.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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For the cross section shown below, the material and sectional properties are given as follows:

Determine the modular ratio. The concrete modulus of elasticity can be estimated by  [psi] where  must be in unit psi.

(b) Draw the transformed section.

(C) Show that the cross-section is elastic and does not have cracks when a bending moment of 1,000 kips-in is applied.

Also, given the bending moment, find the maximum stress in concrete and steel.

The neutral axis is at 11.05 in. from the top surface, and the moment of inertia around the neutral axis is 26676 in4.

For the cross section shown below, the material and sectional properties are given as follows:
b
T
d ¹2 in.
I typ
T
fé = 4ksi, fy = 60 ksi,
E = 29000000-psi,
Tensile strength of concrete is 500 psi.
T
h
b = 30 in,
d = 20 in,
Four No. 8 bars used for reinforcement.
concrete cover depth 1.5in.
(a) Determine the modular ratio. The concrete modulus of elasticity can be estimated by
57000√ √ [psi] where fe must be in unit psi.
(b) Draw the transformed section.
(C) Show that the cross-section is elastic and does not have cracks when a bending moment of
1,000 kips-in is applied.
Also, given the bending moment, find the maximum stress in concrete and steel.
The neutral axis is at 11.05 in. from the top surface, and the moment of inertia around the neutral
axis is 26676 in¹.
Transcribed Image Text:For the cross section shown below, the material and sectional properties are given as follows: b T d ¹2 in. I typ T fé = 4ksi, fy = 60 ksi, E = 29000000-psi, Tensile strength of concrete is 500 psi. T h b = 30 in, d = 20 in, Four No. 8 bars used for reinforcement. concrete cover depth 1.5in. (a) Determine the modular ratio. The concrete modulus of elasticity can be estimated by 57000√ √ [psi] where fe must be in unit psi. (b) Draw the transformed section. (C) Show that the cross-section is elastic and does not have cracks when a bending moment of 1,000 kips-in is applied. Also, given the bending moment, find the maximum stress in concrete and steel. The neutral axis is at 11.05 in. from the top surface, and the moment of inertia around the neutral axis is 26676 in¹.
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