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A simply-supported rectangular beam with an 8 m span has a self-weight of 5.5 kN/m and an imposed load of 12 kN/m. In addition to this, the beam supports a brickwall with a thickness of 115 mm and a height of 3.2 m. Given: density of brick wall, ρbrickwall = 19 kN/m3 ; ? = 0.8; breadth of beam, b = 175 mm; concrete strength = 25 MPa; and fsy = 500 MPa. Assume the concrete cover is 30 mm and R10 shear links are used. a. Recommend a suitable depth for the beam and determine the area of reinforcement, Ast, according to minimum ductility requirements from AS3600 (ku = 0.36) by using N32 rebar. Detail the cross-section of the beam. b. Using the same beam dimensions from (a), design the steel requirement if N25 rebar is to be used instead. c. Based on your designs using N25 and N32 rebar, which rebar size would you recommend to the client? Justify your answer.

A simply-supported rectangular beam with an 8 m span has a self-weight of 5.5 kN/m and an imposed load of 12 kN/m. In addition to this, the beam supports a brickwall with a thickness of 115 mm and a height of 3.2 m. Given: density of brick wall, ρbrickwall = 19 kN/m3 ; ? = 0.8; breadth of beam, b = 175 mm; concrete strength = 25 MPa; and fsy = 500 MPa. Assume the concrete cover is 30 mm and R10 shear links are used. a. Recommend a suitable depth for the beam and determine the area of reinforcement, Ast, according to minimum ductility requirements from AS3600 (ku = 0.36) by using N32 rebar. Detail the cross-section of the beam. b. Using the same beam dimensions from (a), design the steel requirement if N25 rebar is to be used instead. c. Based on your designs using N25 and N32 rebar, which rebar size would you recommend to the client? Justify your answer.

Principles of Foundation Engineering (MindTap Course List)
Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN:9781305081550
Author:Braja M. Das
Publisher:Braja M. Das
Chapter14: Sheet-pile Walls
Section: Chapter Questions
Problem 14.11P
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A simply-supported rectangular beam with an 8 m span has a self-weight of 5.5 kN/m and an imposed load of 12 kN/m. In addition to this, the beam supports a brickwall with a thickness of 115 mm and a height of 3.2 m. Given: density of brick wall, ρbrickwall = 19 kN/m3 ; ? = 0.8; breadth of beam, b = 175 mm; concrete strength = 25 MPa; and fsy = 500 MPa. Assume the concrete cover is 30 mm and R10 shear links are used. a. Recommend a suitable depth for the beam and determine the area of reinforcement, Ast, according to minimum ductility requirements from AS3600 (ku = 0.36) by using N32 rebar. Detail the cross-section of the beam. b. Using the same beam dimensions from (a), design the steel requirement if N25 rebar is to be used instead. c. Based on your designs using N25 and N32 rebar, which rebar size would you recommend to the client? Justify your answer.
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