Experimental Study on Dynamic Performance of Mid-Rise Recycled Aggregate Concrete Shear Wall on the Shaking Table

Abstract

To ascertain the dynamic performance of recycled aggregate concrete (RAC) shear walls, four 1/3 scale models, including three mid-rise shear walls with reinforcement ratio 0.25% but different recycled aggregate replacement rate, and one with reinforcement ratio 0.46% and 100% recycled coarse and fine aggregate, were tested on the shaking table. The testing process included elastic, cracking, and failure stage of the models. Dynamic characteristic and dynamic response of models at different stages were studied and the comparison between failure patterns of 4 models was also made. The shaking table test results show that the seismic performance of RAC mid-rise shear wall becomes worse with the increase of the recycled aggregate replacement. And the seismic performance of 100% recycled aggregate concrete shear wall gets a little higher with the increase of the reinforcement ratio.

Test and Numerical Simulation Investigation on Seismic Performance of Different Types of Expansive Polystyrene Granule Cement Latticed Concrete Walls

“…Based on the existing pseudo-static tests, Asadi et al [ 27 ] conducted a finite element simulation analysis on the seismic performance of a screen-grid insulating concrete form (SGICF) wall. Further considering the sustainable development of building materials and the recycling of construction waste, Cao’s research team [ 28 , 29 , 30 ] conducted a serial pseudo-static test to analyze recycled concrete shear walls with thermal insulation blocks of single-row steel reinforcement and a specially shaped frame suitable for rural buildings, and they found that the system had good seismic performance. Cao et al [ 31 ] conducted cyclic lateral loading on steel tubular rein-forced latticed concrete walls with different aspect ratios to explore the seismic performance and optimal design of the walls.…”

Experimental Study on Punching Performance of Recycled Aggregate Concrete Thin Wallboard with Single-Layer Reinforcement

“…This is mainly due to the lower strength of RAC compared to ordinary concrete. Seismic performance tests of low, medium, and high shear walls of recycled coarse and fine aggregate concrete were performed by Cao and Zhang [19][20][21][22][23], showing that the bearing capacity, stiffness, ductility, and energy dissipation capacity of recycled coarse aggregate concrete shear walls are slightly worse than those of ordinary concrete shear walls. Again, with the increase of recycled aggregate replacement in the mixture, the bearing capacity and ductility of the recycled aggregate concrete shear wall decreases, although the seismic performance of the recycled concrete shear walls does meet the needs of structural design.…”