A composite beam consist of two timber joists 100 mm wide and 300 mm deep with a steel plate 200 mm deep and 15 mm thick placed symmetrically in between and clamped to them. Calculate the total moment of resistance of the section if the allowable stress in the joist is 9 N/mm2 assume Es- 20EW

A composite beam consist of two timber joists 100 mm wide and 300 mm deep with a steel plate 200 mm deep and 15 mm thick placed symmetrically in between and clamped to them. Calculate the total moment of resistance of the section if the allowable stress in the joist is 9 N/mm2 assume Es- 20EW

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter6: Stresses In Beams (advanced Topics)

Section: Chapter Questions

Problem 6.10.15P: The hollow box beam shown in the figure is subjected to a bending moment M of such magnitude that...

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Question

A composite beam consist of two timber joists 100 mm
wide and 300 mm deep with a steel plate 200 mm deep
and 15 mm thick placed symmetrically in between and
clamped to them. Calculate the total moment of
resistance of the section if the allowable stress in the
joist is 9 N/mm? assume Es - 20EW
9 Nimm
6 N/mm
100 15 100
120 N/mm
300
200
mm
mm
Stress distribution
Stress distribution for steel
for timber

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