Frame- Shear Wall Structure Seismic Performance Evaluation Based On The Full Probability Theory

Recently, based on the total probability theory of a new generation of seismic performance evaluation method has made great development in the world,some advanced countries has started to used for this specific seismic performance evaluation method of the building. The seismic performance evaluation method is more scientific and reasonable than the existing method. Studying a new generation of seismic behavior evaluation methods by the total probability theory, and and applied to the seismic performance assessmengt of buildings. It has good theoretical significance and practical value to mitigate the earthquake disaster and improve the seismic performance of structures.Based on the framework of seismic performance evaluation process in the FEMA P-58 combining with the characteristics of China’s building structure and specification requirements, and based on the seismic performance of the total probability evaluation ideas for a individual building. Using the finite element analysis software(PERFORM 3D) and seismic performance assessment analysis software(PACT) analyse and evaluate the vulnerability of building by The Incremental Dynamic Analysis(IDA) method. Useing Intensity-based assessments and Time-based assessments methods, on the one hand, to get the two economic performance evaluation indexes that are the earthquake intensity loss ratio and the seismic damage loss ratio distribution on the basis of the overall structure of seismic vulnerability; On the other hand, to get the building performance probability distributions included Casualties, restoration and reconstruction cost and the break period.The author puts forward the suitable seismic performance evaluation methods for our country by combining FEMA P-58 assessment framework in this article, China’s actual situations, standards and literature. Information database about a component vulnerability grouping and building personnel occupancy flow model is established for imporving the further study on seismic performance evaluation of buildings in our country.