COMPRESSION TESTS OF SHORT WELDED I-SECTIONS

COMPRESSION TESTS OF SHORT WELDED I-SECTIONS - Printable Version

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COMPRESSION TESTS OF SHORT WELDED I-SECTIONS - asim99 - 04-03-2013

The local buckling and post-local buckling behavior of short length
I-section columns fabricated by welding high tensile steel plate is described. Six
sections of three different section geometries were tested to destruction by loading
between rigid end plattens mounted on freely rotating bearings in a
compression testing machine. Accurate measurements of welding residual strains
and geometric imperfections were taken prior to testing and are presented in
the paper. Comparisons of the test local buckling loads are made with a finite
strip buckling analysis including welding residual strain. Comparisons of the
measured axial stiffnesses and stress distributions were made with a nonlinear
finite strip analysis, which includes geometric imperfections and welding residual
strain. The test loads are compared with those based on the Winter effective
width formulas.

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