摘要
在对组合结构材料离心混凝土圆筒试块的抗压试验和钢板材的抗拉试验的基础上,进行了11个离心钢管混凝土弯扭构件的试验研究,研究了构件在弯扭组合作用下的工作性能与机理.并基于组成离心钢管混凝土的钢材与离心混凝土的本构关系,利用试验实测的参数,建立了有限元分析模型.考虑不同弯扭作用的加载路径,对弯扭构件进行了全过程分析.结果表明,试验与理论分析结果吻合良好.根据试验与理论计算结果,提出了离心钢管混凝土弯扭构件的承载力相关方程,可为工程设计提供理论依据.
Based on the material performance experiments of centrifuge concrete sample blocks and steel tubes, eleven members of centrifuge concrete filled-steel tubular （CCFT） subjected to bending-torsion were experimentally investigated to study the working performance and mechanism of CCFT. The finite element analysis （FEA） method was used to predict the performance of CCFT members subject to bending-torsion with measured parameters and the constitutive relationship of tubular and centrifuge concrete. The systematic analysis of CCFT bending-torsion member was performed considering different loading paths. The FEA model fitted the experimental results well. The interaction equation of bearing capacity of CCFT bending-torsion members was summarized for the engineering application.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第1期116-121,共6页
Journal of Zhejiang University：Engineering Science
关键词
离心钢管混凝土
弯扭
加载路径
有限元分析
相关方程
centrifuge concrete filled-steel tubular （CCFT）
bending-torsion
loading path
finite element analysis
interaction equation
作者简介
袁伟斌（1977-），男，浙江绍兴人，博士，主要从事钢-混凝土组合结构的研究．E-mail：yuanwh0201@sina．com.
通讯联系人：金伟良，男，教授，博导．E—mail：jinwl@zju．edu．cn
