Answered: P= 22.5 kN| 1.5 m = 5.8 kN/m -L =5 m-

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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Question

A simple beam of length L 5 5 m carries a
uniform load of intensity q 5 5.8 kN/m and a concentrated
load 22.5 kN (see figure).
(a) Assuming σ_allow =110 MPa, calculate the
required section modulus S. Then select
the most economical wide-flange beam (W
shape) from Table F-1(b) in Appendix F, and recalculate S, taking into account the weight of
the beam. Select a new beam if necessary.
(b) Repeat part (a), but now assume that the design
requires that the W shape must be used in weak
axis bending (i.e., it must bend about the 2–2
(or y) axis of the cross section).

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