Experimental study on collapse modes of reinforced concrete wallboards under earthquake action

Abstract

The collapse modes of reinforced concrete (RC) wallboards directly affect the living space and the escape time for people during the damage of an RC shear wall structure under the impact of a strong earthquake. To summarize all the possible collapse modes of RC wallboards based on the existing theoretical studies related to the seismic collapse of RC wallboards, six corresponding indoor RC wallboard model structures were designed on a scale of 1:4. These structures were subject to a full-process low-cycle horizontal load test to emphasize the failure process and verify the theoretical collapse modes of each test model. The experimental results are consistent with the findings from relevant theoretical studies and also enrich the collapse mechanism of RC wallboards, thus providing a valuable reference for designs that can withstand seismic impacts.

Keywords

• reinforced concrete wallboard
• strong earthquake action
• collapse mode
• experimental study
• low-cycle horizontal load test