文献类型：期刊文献

英文题名：Behavior of thin-walled dodecagonal section double skin concrete-filled steel tubes under bending

作者：Chen, Ju[1];Wang, Jun[1];Xie, Fang[2];Jin, Wei-liang[1]

机构：[1]Zhejiang Univ, Dept Civil Engn, Hangzhou, Zhejiang, Peoples R China;[2]Shaoxing Univ, Yuanpei Coll, Shaoxing, Zhejiang, Peoples R China

年份：2016

卷号：98

起止页码：293

外文期刊名：THIN-WALLED STRUCTURES

收录：SCI-EXPANDED(收录号：WOS:000366767300006)、、EI(收录号：20154301430455)、Scopus(收录号：2-s2.0-84945236994)、WOS

基金：The research work described in this paper was supported by National Key Technology R&D Program (2011BAJ09B03) and Public Projects of Zhejiang Province (2015C33005).

语种：英文

外文关键词：Bending; Concrete-filled steel tube; Dodecagonal section; Double skin

外文摘要：The behavior of thin-walled dodecagonal section double skin concrete-filled steel tubes under bending was studied in this paper. Both experimental investigation and finite element analysis (FEA) were carried out. A total of 7 specimens were tested with the beam length of 2000 mm. The width to thickness ratio of the outer steel tube ranged from 75 to 133. The load-displacement curves, failure mode and ultimate capacity of test specimens were obtained. A finite element model was developed for the thin-walled dodecagonal section double skin concrete-filled steel tube subjected to bending. The FEA results were verified against the test results and parametric study was conducted using the verified model. In addition, the suitability of Han's method, Uenaka's method and proposed method for thin-walled circular section double skin concrete-filled steel tubes subjected to bending was also evaluated. (C) 2015 Elsevier Ltd. All rights reserved.