Stress-strain relationship of recycled self-compacting concrete filled steel tubular column subjected to eccentric compression

作     者：Feng YU Cheng QIN Shilong WANG Junjie JIANG Yuan FANG Feng YU;Cheng QIN;Shilong WANG;Junjie JIANG;Yuan FANG

作者机构：College of Civil EngineeringAnhui University of TechnologyMa'anshan 243002China 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2020年第14卷第3期

页      面：760-772页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：Supported by the National Natural Science Foundation of China(Grant Nos.51578001,51608003,and 51878002) Natural Science Foundation granted by Department of Education,Anhui Province(No.KJ2015ZD10) Key Research and Development Plan of Anhui Province(No.1704a0802131) the Outstanding Young Talent Support Program of Anhui Province(No.gxyqZD2016072) This work was also supported by the Graduate Innovation Research Foundation granted by Anhui University of Technology(Nos.2016097,2016094) 

主　　题：concrete flleld circular steel tubular columns recycled self-compacting concrete eccentric compression recycled coarse aggregate replacement ratio stress-strain relationship 

摘      要：As a typical compression member,the concrete-filled steel tube has been widely used in civil engineering ***,little research on recycled self-compacting concrete flled circular steel tubular(RSCCFCST)columns subjected to eccentric load was *** this study,21 specimens were designed and experimental studies on the stress-strain relationship of were carried out to study the mechanical *** coarse aggregate replacement ratio,concrete strength grade,length to diameter ratio and eccentric distance of specimens were considered as the main experimental parameters to carry out eccentric compression *** corresponding stress-strain relationship curves were used to analyze the influence of concerned parameters on ecentric load-bearing capacity of RSCCFCST *** experimental results show that the strain of the eccentric compression stress-strain curves increase with the increase of recycled coarse aggregate replacement ratio and concrete strength *** increase of eccentric distance,the ductility of specimens increases while the bearing capacity ***,a phenomenological model of RSCCFCST columns is proposed,which exhibits versatile ability to capture the process during *** present study is expected to further understanding the behaviors and to provide guidance of RSCCFCST columns in design and engineering applications.