Theoretical study on the post-local buckling of steel plates in concrete-filled box columns

被引：107

作者：

Liang, QQ

Uy, B

机构：

[1] Victoria Univ Technol, Sch Built Environm, Melbourne, Vic 8001, Australia

[2] Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia

来源：

COMPUTERS & STRUCTURES | 2000年 / 75卷 / 05期

关键词：

composite columns; concrete; effective width; finite element analysis; post-local buckling; steel plates;

D O I：

10.1016/S0045-7949(99)00104-2

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper presents a theoretical study on the post-local buckling behaviour of steel plates in welded steel box columns filled with concrete, by using the finite element method. The effects of various geometric imperfections, residual stresses and width-to-thickness ratios on the post-local buckling characteristics of steel plates in composite columns are investigated. A novel method is developed for evaluating the initial local buckling loads and post-local buckling reserve strength of steel plates with imperfections associated with a theoretical analysis. Two effective width formulas are proposed for the design of clamped steel plates restrained by concrete and are employed in the ultimate strength calculation of short concrete-filled steel box columns. The proposed design models are compared with existing experimental results with a good agreement. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：479 / 490

页数：12

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