Answered: 7500 lb 18,500 ft-lb -3 ft→ 125 lb/ft A…

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 wood beam AB on simple supports with span
length equal to 10 ft is subjected to a uniform load of
intensity 125 lb/ft acting along the entire length of the
beam, a concentrated load of magnitude 7500 lb acting at
a point 3 ft from the right-hand support, and a moment
at A of 18,500 ft-lb (see figure). The allowable stresses in
bending and shear, respectively, are 2250 psi and 160 psi.
(a) From the table in Appendix G, select the lightest
beam that will support the loads (disregard the
weight of the beam).
(b) Taking into account the weight of the beam
(weight density = 35 lb/ft³ ), verify that the
selected beam is satisfactory, or if it is not, select
a new beam.

7500 lb
18,500 ft-lb
-3 ft→
125 lb/ft
A
B
10 ft-

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