A rectangular reinforced concrete beam with width of 300mm andeffective depth of 600mm is reinforced with 4D32mm RSB. Using working stressanalysis for cracked sections, find the maximum stress of concrete and steel, if thesection is subjected to a moment equal to 90 kN-m. Use 8 as the modular ratio of thebeam.

`Given data: b = 300mm d = 600mm m = 8 M = 90 kN-m =90 x 106 N-mm Ast = 4×π4322=3217 mm2

Answered: A rectangular reinforced concrete beam…

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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Problem: A rectangular reinforced concrete beam with width of 300mm and effective depth of 600mm is reinforced with 4D32mm RSB. Using working stress analysis for cracked sections, find the maximum stress of concrete and steel, if the section is subjected to a moment equal to 90 kN-m. Use 8 as the modular ratio of the beam
A rectangular concrete beam has a width of 290 mm and an effective depth of 550 mm. The beam is used to carry a factored moment load of 460 kN-m. Assume fc 21 MPa and fy 276 MPa, reduction factor d= 0.9. Determine the maximum tension steel area for singly reinforced concrete.
Given that a simple span beam has concentrated load of 50KN acting at midspan and that the allowable shear stress of the material is 1 48MPa determine the computed depth of the span of the beam is 4 m and the width is 100mm
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a reinforced concrete beam, having a width of 200mm and an effective depth of 350mm, is reinforced at the tension side only by 2-16mm diamter bar. if reinf. steel strength is 275 Mpa and specified compressive strength of concrete is 24Mpa, a. compute the ultimate moment capacity of the beam
A 6-m simply supported parabolic beam having a width of 400 mm and height of 500 mm is reinforced with 4-32 mm Ø placed 100 mm from the bottom of the beam. Use f'c=27 MPa and fy=270 MPa. 1. Calculate the depth of compressive force on concrete 2. Determine the safe concentrated live load that can be placed at midspan of the beam.
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A rectangular concrete beam has a width of 290 mm and an effective depth of 550 mm. The beam is used to carry a factored moment load of 460 kN-m. Assume fc = 21 MPa and fy = 276 MPa, reduction factor d= 0.9. Determine the required tension steel area for singly reinforced concrete.
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The continuous beam shown has a compact section with a design strength ϕbMp of 1040 k-ft. Use plastic analysis to find the collapse load Pu in [kip]. Assume continuous lateral support
Pr - An applied load of 3.5 kN m2 is to be accommodated by a composite floor that consists of a 150 mm thick reinforced concrete slab supported by steel beams that span 5 m and are spaced at 3 m centres. Calculate the design loads on a typical internal beam using the assumption that the unit mass of the steel beams is 50 kg m1.
A rectangular beam with limited size of 300mm is to be designed for an ultimate moment of 550 kN·m with f’c = 28 MPa and fy = 420 MPa. The effective depth of the tension bars is 500 mm and 70 mm for compression bars. 13. Determine the the maximum tensile steel ratio if the tensile steel strain will not be less than 0.005 for a more ductile failure.

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