PRINCIPLES OF REINFORCED / PRE-STRESSED CONCRETEA reinforced concrete beam has total depth limited to 500 mm due to architectural clear floor height requirement. Effective concrete cover is 65 mm. f’c = 28 MPa and fy = 415 MPa. Total factored moment is 260 Kn-m.Determine the approximate/maximum required value of area of steel if the architect also wishes to have the smallest possible beam width. Design a singly reinforced, tension controlled section based on 2010 NSCP.If the width is 350 mm, determine the maximum number of 25 mm that can be used for a tension controlled, singly-reinforced section based on 2010 NSCP. A RC rectangular beam will be subjected to a factored moment of 240 Kn. Steel protective covering is 75 mm to the centroid of the steel group. f’c = 28 MPa, fy = 415 MPa. Assume bars to be placed in one layer only.Determine the beam dimensions using the maximum allowable reinforcement ratio for tension control.

Given; factored moment =240 Kn Steel protective covering =75 mm f’c = 28 MPa, fy = 415 MPa

Answered: PRINCIPLES OF REINFORCED / PRE-STRESSED…

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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PRINCIPLES OF REINFORCED / PRE-STRESSED CONCRETE

A reinforced concrete beam has total depth limited to 500 mm due to architectural clear floor height requirement. Effective concrete cover is 65 mm. f’c = 28 MPa and fy = 415 MPa. Total factored moment is 260 Kn-m.

Determine the approximate/maximum required value of area of steel if the architect also wishes to have the smallest possible beam width. Design a singly reinforced, tension controlled section based on 2010 NSCP.
If the width is 350 mm, determine the maximum number of 25 mm that can be used for a tension controlled, singly-reinforced section based on 2010 NSCP.

A RC rectangular beam will be subjected to a factored moment of 240 Kn. Steel protective covering is 75 mm to the centroid of the steel group. f’c = 28 MPa, fy = 415 MPa. Assume bars to be placed in one layer only.

Determine the beam dimensions using the maximum allowable reinforcement ratio for tension control.

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