扫描手机二维码

欢迎您的访问
您是第 位访客

开通时间:..

最后更新时间:..

  • 杨有福 ( 教授 )

    的个人主页 http://faculty.dlut.edu.cn/ceyoufuyang/zh_CN/index.htm

  •   教授   博士生导师   硕士生导师
论文成果 当前位置: 中文主页 >> 科学研究 >> 论文成果
Tests and numerical simulation of rectangular RACFST stub columns under concentric compression

点击次数:
论文类型:期刊论文
第一作者:杨有福
通讯作者:Hou, Chao,Liu, Min
发表时间:2021-01-10
发表刊物:STRUCTURES
卷号:27
页面范围:396-410
ISSN号:2352-0124
关键字:Recycled aggregate concrete filled steel tube (RACFST); Rectangular section; Stub columns; Concentric compression; Tests; Numerical simulation; Simplified formulae
摘要:Tests and numerical simulation of rectangular recycled aggregate concrete filled steel tube (RACFST) stub columns under concentric compression are carried out. Eighteen specimens, including 12 RACFST specimens and 6 concrete filled steel tube (CFST) specimens as reference, with varied width-to-thickness ratio (B/t), depth-to-width ratio (beta) and recycled coarse aggregate replacement ratio (r) are tested. The test results show that rectangular RACFST stub column specimens have similar failure pattern as their counterparts. However, the bearing capacity and the composite elastic modulus of RACFST specimens are lower than those of CFST ones while they both decrease with higher r. Moreover, the specimens with larger B/t and beta possess a smaller ductility index. Numerical simulation of rectangular RACFST stub columns under concentric compression is executed using a finite element analysis (FEA) model developed based on the ABAQUS software, and the predicted results are verified by the experimental observations. The mechanism of concentrically loaded rectangular RACFST stub columns is further revealed by the FEA model. Finally, simplified formulae for the bearing capacity of rectangular RACFST stub columns are proposed, with the comparison between simplified and experimental results showing that the simplified model is a good predictor.

 

辽ICP备05001357号 地址:中国·辽宁省大连市甘井子区凌工路2号 邮编:116024
版权所有:大连理工大学