Analysis on Building Damages in the Wenchuan Earthquake and Discussions on Some Problems of Seismic Resistance of Buildings

Combining with numerous firsthand materials collecting on site after the Wenchuan earthquake,damages of the buildings with brick-timber structure,brick-masonry structure,RC frame structure and steel structure were expounded.The damage forms and aspects of each were summarized and the damage mechanisms were discussed.Then the problems of seismic design need to be improved in future were pointed out.Because buildings of schools and buildings at countryside built by the residents themselves were destroyed most severely in the earthquake,they were analyzed in emphasizes.Finally,some problems of earthquake resistance and disaster mitigation of buildings in pan,siting,construction and fitments and problems of seismic retrofit of buildings were proposed.