Behaviors of recycled aggregate concrete-filled steel tubular columns under eccentric loadings

被引：39

作者：

Tam, Vivian W. Y. ^{[1
,2
,3
]}

Xiao, Jianzhuang ^{[1
]}

Liu, Sheng ^{[1
]}

Chen, Zixuan ^{[1
]}

机构：

[1] Tongji Univ, Dept Struct Engn, Shanghai 200092, Peoples R China

[2] Univ Western Sydney, Sch Comp Engn & Math, Locked Bag 1797, Penrith, NSW 2751, Australia

[3] Univ Western Sydney, Inst Infrastruct Engn, Locked Bag 1797, Penrith, NSW 2751, Australia

来源：

FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING | 2019年 / 13卷 / 03期

基金：

中国国家自然科学基金;

关键词：

concrete filled steel tubes; recycled aggregate concrete; columns; expansive agent; eccentric load; SHRINKAGE REDUCING ADMIXTURES; MECHANICAL-PROPERTIES; CREEP; DEFORMATION; PERFORMANCE; SHS;

D O I：

10.1007/s11709-018-0501-7

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The paper investigates the behaviors of recycled aggregate concrete-filled steel tubular (RACFST) columns under eccentric loadings with the incorporation of expansive agents. A total of 16 RACFST columns were tested in this study. The main parameters varied in this study are recycled coarse aggregate replacement percentages (0%, 30%, 50%, 70%, and 100%), expansive agent dosages (0%, 8%, and 15%) and an eccentric distance of compressive load from the center of the column (0 and 40 mm). Experimental results showed that the ultimate stresses of RACFST columns decreased with increasing recycled coarse aggregate replacement percentages but appropriate expansive agent dosages can reduce the decrement; the incorporation of expansive agent decreased the ultimate stresses of RACFST columns but an appropriate dosage can increase the deformation ability. The recycled coarse aggregate replacement percentages have limited influence on the ultimate stresses of the RACFST columns and has more effect than that of the normal aggregate concrete-filled steel tubular columns.

引用

页码：628 / 639

页数：12

共 35 条

[1] Influence of recycled aggregates on mechanical properties of HS/HPC [J].