Experimental research and finite element analysis on anti-wind bearing capacity of ECC large-hollow rate wallboard

Abstract This paper investigated the wind resistance of high-toughness cement-based composite (ECC) wall panels with large hollow rates. Two large hollow wall panels were prepared for the test, one was a ribbed large hollow rate wall panel, and the other was an integral cavity large hollow rate wall panel. The test variable was whether there were ribs inside the wall panel. The test results showed that the flexural performance and crack resistance of ribbed wall panel were better than non-ribbed wall panel, which wan increased by 70 % and 47 %, respectively. In terms of resistance to deformation, ribbed wall panel also performed better, which was particularly evident in the cracking stage. Perform finite element analysis on the test process of two wall panels. There was a good correlation between the test results and the finite element results. Models of wall panel with different parameters included the height of rid and the thickness of wallboard were also established. Through experiments and finite element analysis, it was concluded that the two large hollow rate wall panels have reliable wind resistance and can be used as the enclosure structure of 200 m high-rise buildings. The ribbed large hollow rate wall panels can be applied to higher load requirements in the engineering environment.