Nonlinear finite-element analysis for hysteretic behavior of ECC-encased CFST columns

被引：36

作者：

Cai, Jingming ^{[1
,2
]}

Pan, Jinlong ^{[1
]}

Tan, Jiawei ^{[2
]}

Vandevyvere, Brecht ^{[2
]}

机构：

[1] Southeast Univ, Key Lab Concrete & Prestressed Concrete Struct, Minist Educ, Nanjing 210018, Peoples R China

[2] Katholieke Univ Leuven, Dept Civil Engn, Brugge, Belgium

来源：

STRUCTURES | 2020年 / 25卷

关键词：

ECC; Composite column; Finite element analysis; Cyclic loading; STEEL TUBES; CONCRETE; PERFORMANCE; COMPRESSION;

D O I：

10.1016/j.istruc.2020.03.036

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, the hysteretic behavior of engineered cementitious composite (ECC)-encased concrete filled steel tube (CFST) was analyzed based on ABAQUS/standard solver. The concrete damage plasticity model for ECC material under reversed cyclic loading was proposed and the finite-element analysis (FEA) model was established with the consideration of different constitutive models. The accuracy of proposed FEA model was verified with the experimental results. The failure mechanism and processes of ECC-encased CFST under reversed cyclic loading were investigated. It was found that the ECC component was effective to increase the post-peak ductility and energy-dissipating capacity of the composite column. Based on the proposed FE model, a parameter analysis was conducted to discuss the influences of different material strength and sectional dimensions. The hysteresis model of ECC-encased CFST columns under reversed cyclic loading was also proposed and verified with the experimental results.

引用

页码：670 / 682

页数：13

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