A Review of Research on Recycled Aggregate Concrete Filled Steel Tube
Xu Guo *
School of Civil Engineering and Transportation, North China University of Water Resources and Hydropower, Zhengzhou, Henan-450045, China.
*Author to whom correspondence should be addressed.
Abstract
Recycled aggregate concrete filled steel tube as a new combined structural form, can effectively improve the inherent defects of recycled aggregate concrete. Existing studies are mainly theoretical analysis, experimental research and numerical simulation to investigate the mechanical properties and deformation capacity of recycled aggregate concrete filled steel tube columns. Based on the review of the current research status of recycled aggregate concrete filled steel tube columns in recent years, the basic mechanical properties, durability, seismic performance, fire and high temperature resistance of recycled aggregate concrete filled steel tube are described, and suggestions are made for future research directions.
Keywords: Recycled concrete, recycled aggregate concrete filled steel tube, properties, review