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1. Compute the design and allowable compressive strength of a 12 meter built-up column composed of a steel plate with an attached channel section on each side. The web of both channel bars are welded to the steel plate, with their local x-axes coinciding with that of the steel plate. The thickness of the plate is 6 mm, with its width equal to the depth of the larger channel section. Assume that the column has fixed ends and is supported about the weaker at middle thirds, and about the stronger axis at mid-height. Assume all steel used are A36 steel.

1. Compute the design and allowable compressive strength of a 12 meter built-up column composed of a steel plate with an attached channel section on each side. The web of both channel bars are welded to the steel plate, with their local x-axes coinciding with that of the steel plate. The thickness of the plate is 6 mm, with its width equal to the depth of the larger channel section. Assume that the column has fixed ends and is supported about the weaker at middle thirds, and about the stronger axis at mid-height. Assume all steel used are A36 steel.

Structural Analysis
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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1. Compute the design and allowable compressive strength of a 12 meter built-up column composed of a steel plate with an attached channel section on each side. The web of both channel bars are welded to the steel plate, with their local x-axes coinciding with that of the steel plate. The thickness of the plate is 6 mm, with its width equal to the depth of the larger channel section. Assume that the column has fixed ends and is supported about the weaker at middle thirds, and about the stronger axis at mid-height. Assume all steel used are A36 steel. Properties of the Channel Sections C310 x 31 A d b t Ix ly 3930 mm² 305 mm 7.16 mm 74.7 mm 12.7 mm 53.7 x 10 mm 1.61 x 10 mm C 250 x 23 A d tw b t lx ly 2900 mm² 254 mm 6.10 mm 66 mm 11.1 mm 28.1 x 10 mm 0.949 x 10 mm
Transcribed Image Text:1. Compute the design and allowable compressive strength of a 12 meter built-up column composed of a steel plate with an attached channel section on each side. The web of both channel bars are welded to the steel plate, with their local x-axes coinciding with that of the steel plate. The thickness of the plate is 6 mm, with its width equal to the depth of the larger channel section. Assume that the column has fixed ends and is supported about the weaker at middle thirds, and about the stronger axis at mid-height. Assume all steel used are A36 steel. Properties of the Channel Sections C310 x 31 A d b t Ix ly 3930 mm² 305 mm 7.16 mm 74.7 mm 12.7 mm 53.7 x 10 mm 1.61 x 10 mm C 250 x 23 A d tw b t lx ly 2900 mm² 254 mm 6.10 mm 66 mm 11.1 mm 28.1 x 10 mm 0.949 x 10 mm
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