EXPERIMENTAL STUDY ON THE SEISMIC BEHAVIOR OF RECYCLED CONCRETE FRAME-SHEAR-WALL STRUCTURE

A series of research on aseismic behavior of the recycled concrete structure was carried out by the authors. In this paper, a low-cycle loading experiment for two 1/2.5 scale frame-shear-wall structures was carried out, one of the specimens was made out of recycled concrete, the first floor of the other was made out of natural concrete and the second floor was made out of recycled concrete. The failure feature, hysteretic property, ductility, stiffness and energy dissipation of the two specimens were analyzed. On the basis of experiments, an elastoplastic finite element analysis was carried out; the simulation results were in good agreement with those of being measured. Test and analysis results show that, the recycled concrete frame- shear-wall structure has the similar load-carrying capacity, stiffness attenuation, elastoplastic displacement capacity, energy dissipation capacity, yield mechanism and failure feature with that of a frame-shear-wall structure of which the first floor being made out of natural concrete and the second floor being made out of recycled concrete. Through rational designing, the multilayer building or the upside of high-rise building being made out of recycled concrete could meet the aseismic design requirements in the region of which the aseismic fortification intensity is 8.