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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
Study on Seismic Performance of Existing RC Frame Structure in Weizhou Town after Wenchuan Earthquake
Di Wu *
Key Laboratory of Earthquake Engineering and Applied Technique of Guangdong Province, Guangzhou University, Guangzhou, 510405
*Correspondence author
#Submitted by
Subject:
Funding:
Specialized Research Fund for the Doctoral Program of Higher Education(No.No.20094410120002), National Natural Science Foundation of China (No.No.51108105, 50908088, 90815027)
One building that is completed in 2006 in Weizhou Town (Wenchuan county), which is a typical local reinforcement concrete (RC) frame, is studied to review the safety levels of local RC frame building. The adopted assessment levels of earthquake ground motion is according to the earthquake fortification intensity in 2010 Chinese Code for Seismic Design of Buildings (CCSDB). By using nonlinear finite element method, probabilistic seismic demand model (PSDM) for the RC frame structures was built to assess the safety levels of the actual RC frames representative of design and construction practices in in Weizhou Town. The fragility curves for immediate occupancy, significant damage, and collapse prevention damage levels of the RC frame building are analyzed. Then the seismic fragility assessment of the RC frame is demonstrated on RC frames. The result reveals the safety levels of RC frame building in in Weizhou Town before the 2008 Wenchuan earthquake Mw7.9.