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rom the centroid of the tension steel. 28 MPa and steel yield strength is fy aximum moment due to the factored Following most nearly gives the least

rom the centroid of the tension steel. 28 MPa and steel yield strength is fy aximum moment due to the factored Following most nearly gives the least

Structural Analysis
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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A rectangular reinforced concrete beam having a single span of 4.50m carries a service dead load of 20 kN/m and a service live load of 35 kN/m all throughout its length. Steel covering is 75 mm measured from the centroid of the tension steel. Concrete strength is f'c = 28 MPa and steel yield strength is fy = 415 MPa. a. What is the maximum moment due to the factored loads? b. Which of the following most nearly gives the least dimensions of the beam using the maximum allowable reinforcement ratio? i. 200 x 450 mm ii. 200 x 475 mm iii. 225 x 450 mm iv. 225 x 475 mm c. What is the steel area using the dimensions obtained above?
Transcribed Image Text:A rectangular reinforced concrete beam having a single span of 4.50m carries a service dead load of 20 kN/m and a service live load of 35 kN/m all throughout its length. Steel covering is 75 mm measured from the centroid of the tension steel. Concrete strength is f'c = 28 MPa and steel yield strength is fy = 415 MPa. a. What is the maximum moment due to the factored loads? b. Which of the following most nearly gives the least dimensions of the beam using the maximum allowable reinforcement ratio? i. 200 x 450 mm ii. 200 x 475 mm iii. 225 x 450 mm iv. 225 x 475 mm c. What is the steel area using the dimensions obtained above?
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