3) The simply supported beam with the cross-section as shown supports a total uniformly distributed load of 4P and 2P and concentrated load P as shown in the figure. Determine the maximum allowable value of P if the allowable flexural stresses are limited to 35 MPa in tension and 150 MPa in compression respectively. 1m P pist |_ D 175 B C 1m 200 4P 3m D 2P 1m E (Dimensions in mm)

3) The simply supported beam with the cross-section as shown supports a total uniformly distributed load of 4P and 2P and concentrated load P as shown in the figure. Determine the maximum allowable value of P if the allowable flexural stresses are limited to 35 MPa in tension and 150 MPa in compression respectively. 1m P pist |_ D 175 B C 1m 200 4P 3m D 2P 1m E (Dimensions in mm)

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

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Question

3) The simply supported beam with the cross-section as shown supports a
total uniformly distributed load of 4P and 2P and concentrated load
P as shown in the figure. Determine the maximum allowable value of P
if the allowable flexural stresses are limited to 35 MPa in tension
and 150 MPa in compression respectively.
1m
P
B
1m
IC
4P
3m
D
2P
1m
DE
U
175
200
(Dimensions in mm)

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Step 1: neutral axis from the bottom of crosssection

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Step 2: Moment of inertia of the cross section

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Step 3: support reactions

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Step 4: Bending moment diagram

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Step 5: Allowable value of P as per tension requirement

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Step 6 : value of P as per compression requirement

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Step 7: Allowable value of P

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