期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 126, 期 -, 页码 641-660出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.09.063
关键词
Recycled coarse aggregate (RCA); Natural aggregate concrete (NAC).; Recycled aggregate concrete (RAC); Concrete-filled steel tubes; Bond behavior; Cyclic performance
资金
- National Natural Science Foundation of China [51578163]
- Study Abroad Program for Excellent Ph.D. Students of Guangxi Zhuang Autonomous Region
- Innovation Project of Guangxi Graduate Education [YCBZ2014007]
This paper presents a summary review of research performed on the mechanical behavior of concrete filled steel tube members and frames made from recycled aggregate concrete (RAC). The paper begins with an introduction of some research progress made on the bond behavior between RAC and steel tubes. Discussion is then turned to the static behavior of recycled aggregate concrete-filled steel tube (RACFST) members, including the flexural performance of beams, concentric and eccentric load carrying capacities of stub columns and long-term performance of columns. Research findings on the performance of RACFST columns and RACFST plane frame under cyclic loads are then presented. The paper concludes with a presentation of a prediction model for the strength of RACFST by considering whether the recycled coarse aggregates have been pre-wetted or not before fabrication of the structural members. Based on these research results, it can be concluded that with proper design and construction, the application of RAC as a structural material in concrete-filled steel tube structures is feasible and safe. (C) 2016 Elsevier Ltd. All rights reserved.
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