A simply supported reinforced concrete beam carries a uniformly distributed load of 2 kN/m on a span of 4 m. The beam has a rectangular cross section 250 mm wide by 150 mm deep, with three 20 mm diameter steel bars placed 60 mm from the bottom of the beam, as shown below. The moduli of elasticity for the concrete and steel are 5 GPa and 200 GPa, respectively. Determine the average tensile stress in the steel and he maximum compressive stress in the concrete at the section of maximum bending moment. 450 mm 250 mm 60 mm
A simply supported reinforced concrete beam carries a uniformly distributed load of 2 kN/m on a span of 4 m. The beam has a rectangular cross section 250 mm wide by 150 mm deep, with three 20 mm diameter steel bars placed 60 mm from the bottom of the beam, as shown below. The moduli of elasticity for the concrete and steel are 5 GPa and 200 GPa, respectively. Determine the average tensile stress in the steel and he maximum compressive stress in the concrete at the section of maximum bending moment. 450 mm 250 mm 60 mm
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:A simply supported reinforced concrete beam carries a uniformly distributed load of
12 kN/m on a span of 4 m. The beam has a rectangular cross section 250 mm wide by
450 mm deep, with three 20 mm diameter steel bars placed 60 mm from the bottom
of the beam, as shown below. The moduli of elasticity for the concrete and steel are
15 GPa and 200 GPa, respectively. Determine the average tensile stress in the steel and
the maximum compressive stress in the concrete at the section of maximum bending
moment.
450 mm
250 mm
60 mm
Expert Solution
Step 1 Given
The uniformly distributed load is .
The length of the span is .
The modulus of elasticity of the concrete is
The modulus of elasticity of the steel is .
The diameter of the steel bar is .
The width is .
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