Design the reinforcement of a rectangular beam to resist a dead load moment of 200 kN.m(including its own weight) and a live load moment of 300 kN.m. The beam is limited in size to 350 mm by 600mm overall depth. Steel covering (from centroid of bars to outermost fiber is 100 mm for both tension and compression reinforcement. Use fc' = 27.5 MPa, fy = 414 MPa and 20mm bars.

Design the reinforcement of a rectangular beam to resist a dead load moment of 200 kN.m(including its own weight) and a live load moment of 300 kN.m. The beam is limited in size to 350 mm by 600mm overall depth. Steel covering (from centroid of bars to outermost fiber is 100 mm for both tension and compression reinforcement. Use fc' = 27.5 MPa, fy = 414 MPa and 20mm bars.

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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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

A. As'= 7 of 20mm and As=14 of 20mm
B. As' = 9 of 20mm and As=18 of 20mm
C. As'= 5 of 20mm and As=10 of 20mm
D. As' = 3 of 20mm and As=6 of 20mm

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Design the reinforcement of a rectangular beam to resist a dead load
moment of 200 kN.m(including its own weight) and a live load
moment of 300 kN.m. The beam is limited in size to 350 mm by
600mm overall depth. Steel covering (from centroid of bars to
outermost fiber is 100 mm for both tension and compression
reinforcement. Use fc' = 27.5 MPa, fy = 414 MPa and 20mm bars.

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