Answered: ed at the two vertical supports only.…

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 W18X 97 steel beam will carry the given loads shown in Figure 1. Using ASD with A-
36 steel (Fy = 250 MPa).

A. If the beam is laterally supported at the two vertical supports only.
a) What is the allowable bending stress in the beam in MPa?
b) What is the actual bending stress developed in the beam in MPa?
c) What is the actual shearing stress developed in the beam in MPa?

B. If the beam is laterally supported at the two vertical supports and at its mid-span.
a) What is the allowable bending stress in the beam in MPa?
b) What is the allowable shearing stress in the beam in MPa?
.
Neglect the effect of beam weight.

Properties of W18x97
A = 18387 mm? Ix = 728 x 10° mm
d = 472.19 mm Sx = 3081 x10 3 mm
tw = 13.59 mm
ly = 84 x 10 6 mm*
bi = 283.08 mm sy = 592 x 10° mm3
tr = 22.1 mm
30 kN/m
50 kN
4 m
4 m
80 kN / m
Figure 1
2m
8 m

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