华侨大学叶勇--中文主页-- Behaviour of concrete-filled steel tubes with concrete imperfection under axial tension

叶勇(土木工程系副主任)

学位：工学博士学位
职称：教授

硕士生导师

学位：工学博士学位
办公地点：土木学科实验大楼505办公室
电子邮箱：
职务：土木工程系副主任

学科：结构工程

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Behaviour of concrete-filled steel tubes with concrete imperfection under axial tension

点击次数：

发表刊物：

Magazine of Concrete Research

摘要：

In concrete-filled steel tubes (CFSTs), a gap between the steel tube and the core concrete can exist due to inappropriate construction, which will result in a change in the load-carrying capacity of the member. To assess the change in tensile strength, the tensile behaviour of circular CFST members with small gaps was investigated. To this end, a finite-element model was established and validated. Two types of gaps were considered in the analysis – a circular-segment gap and a circumferential gap. The full-range mechanical behaviour of CFST tensile members with a gap was evaluated. CFST members with and without a gap were compared in terms of their failure pattern, load–deformation response, composite action and ultimate strength. A parametric study was also performed and simplified formulae for calculating the tensile strength of CFST members with gaps were developed. It was found that the tensile strength of a CFST member with a gap decreases due to reduced composite action. The tensile strength of CFST members with gaps can be assessed reasonably well using the proposed method.

论文类型：

期刊论文

页面范围：

2021,73(14):743-756

是否译文：

否

收录刊物：

SCI

第一作者：

叶勇

合写作者：

刘小娟,郭子雄

通讯作者：

李威

附件：

Ye et al (2021)-Behaviour of concrete-filled steel tubes with concrete imperfection under axial tension.pdf

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个人简介

叶勇，博士，教授，硕士研究生导师。现任华侨大学土木工程学院土木工程系副主任、现代组合结构和抗震防灾创新团队党支部书记。

从事结构工程方向的教学与研究工作，主持国家自然科学基金项目2项(面上、青年各1项)、福建省自然科学基金面上项目2项、中国博士后科学基金项目1项、福建省高校青年自然基金重点项目1项等科研项目。在国内外主流学术期刊及会议上发表论文近100篇，其中SCI、EI收录50余篇，1篇论文获英国土木工程师协会(ICE)年度出版奖。