a) If the beam is subjected to a simple compressive load of 25 kN in Y direction along its I- cross section. Calculate the resulting compressive stress,.. b) Calculate the magnitude of the second moment of area of the cross section about the axis that passes through the centroid... If the compressive load is removed, and the beam is put into pure bending about the yaxis by a moment of 20 kNm with the upper flange going into tension. Calculate the maximum tensile and compressive stresses,.. c) d) If the beam is now subject to both the bending and compressive loads simultaneously, calculate the new maximum tensile and compressive stresses and the location of the neutral axis,..

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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A bridge support beam has an L-shaped cross section as illustrated below, with a thickness of 15
mm along both the web and the two flanges.
Y
Centroid axis
X.
300mm
a)
If the beam is subjected to a simple compressive load of 25 kN in Y direction along its I-
cross section. Calculate the resulting compressive stress..
b)
Calculate the magnitude of the second moment of area of the cross section about the axis
that passes through the centroid,.
If the compressive load is removed, and the beam is put into pure bending about the yaxis by
c)
a moment of 20 kNm with the upper flange going into tension. Calculate the maximum tensile and
compressive stresses...
d)
If the beam is now subject to both the bending and compressive loads simultaneously,
calculate the new maximum tensile and compressive stresses and the location of the neutral axis..
300mm
Transcribed Image Text:A bridge support beam has an L-shaped cross section as illustrated below, with a thickness of 15 mm along both the web and the two flanges. Y Centroid axis X. 300mm a) If the beam is subjected to a simple compressive load of 25 kN in Y direction along its I- cross section. Calculate the resulting compressive stress.. b) Calculate the magnitude of the second moment of area of the cross section about the axis that passes through the centroid,. If the compressive load is removed, and the beam is put into pure bending about the yaxis by c) a moment of 20 kNm with the upper flange going into tension. Calculate the maximum tensile and compressive stresses... d) If the beam is now subject to both the bending and compressive loads simultaneously, calculate the new maximum tensile and compressive stresses and the location of the neutral axis.. 300mm
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