Local and Overall Buckling of Welded Box Columns

by Tsutomu Usami, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Nagoya Univ., Nagoya, Japan,
Yushsi Fukumoto, (M.ASCE), Prof. of Civ. Engrg.; Nagoya Univ., Nagoya, Japan,

Serial Information: Journal of the Structural Division, 1982, Vol. 108, Issue 3, Pg. 525-542

Document Type: Journal Paper


An experimental study is presented on the local and overall interaction buckling strength of welded built-up box columns made of high strength steel. A total of twenty-seven box columns with large width-thickness ratios were tested to failure, of which twenty-four columns were centrally loaded and the rest eccentrically loaded. Based on the test results, an empirical design formula is presented to predict the interaction buckling strength. Further, a discussion of an economical way of proportioning box sections is presented.

Subject Headings: Buckling | Welding | Box columns | Structural strength | High-strength steel | Steel columns | Failure loads | Load tests

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