Numerical Simulation on Collapse Behaviors of CTV Building Caused by the 2011 New Zealand Earthquake


In this study, we investigated the behaviors of the Canterbury Television (CTV) building which totally collapsed, with only the north-core wall remained standing, during the New Zealand earthquake that occurred on February 22, 2011. A seismic collapse analysis code for RC framed buildings developed using the ASI-Gauss technique is used to simulate the collapse phenomenon. A finite element model of the CTV building is constructed based upon the actual structural drawing of the building. The result of a static pushover analysis showed its unbalanced strengths toward the EW and NS directions due to its biased distribution of anti-seismic walls. Furthermore, the result of a dynamic collapse analysis showed a collapse behavior of the same feature with the investigation report, with a twist motion clearly observed around the elevator shaft connected at the north part of the building.

PDF file