Study on concrete-filled stainless steel-carbon steel tubular (CFSCT) stub columns under compression

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• 作者：Xu Chang^a ; ^{changxu815@163.com} ; Zhong Liang Ru^a ; Wei Zhou^a ; Yong-Bin Zhang^b
• 关键词：Concrete-filled steel tube ; Stainless steel tubes ; lateral displacement ; Compression
• 刊名：Thin-Walled Structures
• 出版年：2013
• 出版时间：February, 2013
• 年：2013
• 卷：63
• 期：Complete
• 页码：125-133
• 全文大小：1326 K

文摘

A concrete-filled stainless steel-carbon steel tubular (CFSCT) column is introduced as a new form of composite member in this paper, which is believed to achieve higher corrosion resistance, higher bearing capacity and lower cost by combination the advantages of stainless steel and concrete filled steel tube (CFST) structure. A series of compression test was carried out on this newly proposed composite column. A modified stress-strain model for concrete core was proposed and then three-dimensional nonlinear finite-element (FE) models were established and verified with the experimental results. Close agreement was achieved between the test and numerical results in terms of load-deformation responses. A parametric study, including tube thickness, diameter and yield strength of carbon steel tube was also conducted to give a clear insight on the performance such composite columns.