Experiment on seismic performance of point contact multi-grid composite wall

In order to research the seismic performance of point contact multi-ribbed composite wall,a low-cycle reverse loading test of 1/2 scale point contact multi-ribbed composite wall was carried out.Based on the experimental study,the failure processes and main failure modes were studied and meanwhile the behavior of the wall was discussed,moreover the hysteretic behavior,load-carrying capacity,ductility,stiffness,energy dissipation were analyzed.The experimental data and the standard multi-ribbed composite wall test results were compared.The result indicates that compared to the standard multi-ribbed composite wall,the load-carrying capacity,ductility,and energy dissipation of the point contact multi-ribbed composite wall are lower,but because the interaction between different seismic lines is weak,the transfer line of force and distribution relation are clear,the calculation model of the wall at different stages is simple,the action of each seismic line is independent,and then the design of multi-ribbed structure can be controlled through accurate calculation to each seismic line.In addition,because of the separation between each seismic line,the component which is damaged in the earthquake can be replaced easily.