Affiliation:
1. The First People's Hospital of Lianyungang Lianyungang China
2. College of Civil Engineering and Architecture Guangxi University Nanning China
3. Key Laboratory of Disaster Prevention and Structure Safety of the Ministry of Education Guangxi University Nanning China
Abstract
AbstractThis paper presents an experimental study of recycled concrete‐filled steel tube (CFST) columns with reinforced concrete (RC) beam frames using recycled aggregate under cyclic loading. A 1/3‐scale model of a CFST column‐RC beam frame with 100% recycled coarse aggregate was tested, the failure process and mode were monitored, and the hysteresis and skeleton curves were obtained. The seismic performance indexes were analyzed based on the test data, including the seismic force, plastic hinge sequence, ductility coefficient, inter‐story drift, dissipation capacity, and stiffness degeneration. The general behavior of the CFST column‐RC beam frame is discussed and compared with that of a normal aggregate concrete‐RC frame structure. The test results demonstrate that CFST column‐RC beam frames with 100% recycled coarse aggregate exhibit remarkable seismic performance and can be applied and popularized for construction in aseismic regions.
Funder
National Natural Science Foundation of China
Specific Research Project of Guangxi for Research Bases and Talents