A reinforced concrete cantilever beam has a span of 5m. It supports a factored load of 60kN/m applied 150mm off the centerline of the cross-section of the beam. It has a width of 400mm and an effective depth of 600mm with a total height of 700mm. It is reinforced in tension with 4-20mm diameter bars and 2-16mm diameter bars for compression. Design the beam for shear and torsional web reinforcements using 12mm diameter bars and design also the additional longitudinal reinforcement for torsion. Neglect the weight of the beam. Use NSCP 2010 and simplified analysis for nominal shear strength of concrete. Draw the section of the beam along with the shear and longitudinal reinforcements. Use 16mm diameter bars for middle longitudinal torsional reinforcements. f'c 21 MPa; fy= 275 MPa

A reinforced concrete cantilever beam has a span of 5m. It supports a factored load of 60kN/m applied 150mm off the centerline of the cross-section of the beam. It has a width of 400mm and an effective depth of 600mm with a total height of 700mm. It is reinforced in tension with 4-20mm diameter bars and 2-16mm diameter bars for compression. Design the beam for shear and torsional web reinforcements using 12mm diameter bars and design also the additional longitudinal reinforcement for torsion. Neglect the weight of the beam. Use NSCP 2010 and simplified analysis for nominal shear strength of concrete. Draw the section of the beam along with the shear and longitudinal reinforcements. Use 16mm diameter bars for middle longitudinal torsional reinforcements. f'c 21 MPa; fy= 275 MPa

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

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

1. What is the spacing of the torsional and shear web reinforcements?

2. What is the governing additional longitudinal reinforcements for torsion?

A reinforced concrete cantilever beam has a span of 5m. It supports a factored load of 60kN/m applied 150mm off the centerline of the cross-section of the beam. It has a
width of 400mm and an effective depth of 600mm with a total height of 700mm. It is reinforced in tension with 4-20mm diameter bars and 2-16mm diameter bars for
compression. Design the beam for shear and torsional web reinforcements using 12mm diameter bars and design also the additional longitudinal reinforcement for torsion.
Neglect the weight of the beam. Use NSCP 2010 and simplified analysis for nominal shear strength of concrete. Draw the section of the beam along with the shear and
longitudinal reinforcements. Use 16mm diameter bars for middle longitudinal torsional reinforcements.
f'c = 21 MPa; fy = 275 MPa

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