Anti-seismic Property of Recycled Concrete Middle-high-rise Shear Wall

H. Liu†*, Z. Tan†, ‡, & B. Yoshioka§

†Nanyang Institute of Technology, Nanyang 473000, China
‡Wuhan University of Technology, Wuhan 430070, §ChinaUniversity Sao Judas Tadeu, Sao Paulo, Brazil 

ABSTRACT: In order to study the different recycled fine aggregate content of concrete and anti-seismic property of reinforcement ratio shear wall, the thesis conducts seven low frequency cyclic loading experiments with 1.5 shear span ratio. Based on the experiments, the thesis analyses the bearing capacity, ductility, rigidity as well as its degenerative process, hysteretic characteristics, energy dissipation and failure mechanism. The experiments show that: compared to the normal concrete high-rise shear wall, the anti-seismic property of recycled concrete high-rise shear wall is little poorer; with the increase of amount of recycled aggregate, the anti-seismic property of recycled concrete high-rise shear wall is decline; with the increase of reinforcement ratio, bearing capacity, ductility and energy dissipation of recycled concrete high-rise shear wall will be improved; with the increase of axial compression ratio, bearing capacity of recycled concrete high-rise shear wall will be increased and the elastic-plastic deformability will be decreased. Through the rational design, the recycled concrete high-rise shear wall can meet the seismic requirement of multilayer shear wall house construction.

Keywords: Recycled concrete; Reinforcement ratio; Axial compression ratio; Middle high rise shear wall; Anti-seismic property; Experimental study.