Nonlinear analysis of elliptical concrete-filled stainless steel tubular short columns under axial compression

被引：26

作者：

Ahmed, Mizan ^{[1
]}

Ci, Junchang ^{[2
]}

Yan, Xi-Feng ^{[3
]}

Chen, Shicai ^{[2
]}

机构：

[1] Victoria Univ, Coll Engn & Sci, POB 14428, Melbourne, Vic 8001, Australia

[2] Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China

[3] Kanagawa Univ, Dept Architecture & Bldg Engn, Yokohama, Kanagawa 2218686, Japan

来源：

STRUCTURES | 2021年 / 32卷

关键词：

Concrete-filled steel tubes; Elliptical cross-section; Stainless steel; Composite columns; Nonlinear analysis; STRESS-STRAIN MODEL; STUB COLUMNS; HOLLOW SECTIONS; BEHAVIOR; DESIGN; RANGE; TESTS;

D O I：

10.1016/j.istruc.2021.03.095

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Elliptical concrete-filled stainless steel tubular (CFSST) columns are high-performance composite columns that have the enormous potentiality to be used in composite construction in the near future. However, to date, limited studies on the performance analysis of such columns under axial compression have been performed taking into account the accurate material laws of stainless steel and the confined concrete. This paper presents a mathematical model to investigate the axial performance of elliptical CFSST short columns. Accurate material laws of stainless steel and the confined concrete are incorporated in the numerical modeling to capture their true performance. Independent test results are utilized to validate the accuracy of the mathematical predictions. A parameter study is performed to study the important column parameters on their axial performance. The investigations of the accuracy of the existing design models for CFST columns in designing axially loaded elliptical CFSST columns are performed with the test and numerical predictions.

引用

页码：1374 / 1385

页数：12

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