a. Determine the elastic section modulus, Sx. b. Determine the plastic section modulus, Zx. c. Determine the compactness of the section.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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1. A built-up section is to be used as a girder. It is simply supported over a span of
9 meters and laterally supported at supports and midspan.
Use Fy=345 MPa and Cb=1.0
Properties of the section:
A=13,780 mm?
d=450 mm
tw=10 mm
br=300 mm
tr=16 mm
= 192.97 mm
ry= mm
L=513.12x10° mm
ly=72.30x10° mm
a. Determine the elastic section modulus, Sx.
b. Determine the plastic section modulus, Zx.
c. Determine the compactness of the section.
Transcribed Image Text:1. A built-up section is to be used as a girder. It is simply supported over a span of 9 meters and laterally supported at supports and midspan. Use Fy=345 MPa and Cb=1.0 Properties of the section: A=13,780 mm? d=450 mm tw=10 mm br=300 mm tr=16 mm = 192.97 mm ry= mm L=513.12x10° mm ly=72.30x10° mm a. Determine the elastic section modulus, Sx. b. Determine the plastic section modulus, Zx. c. Determine the compactness of the section.
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