The building damages in Wenchuan earthquake were serious and must be reflected rationally.This paper focuses on the damage investigation of masonry structures designed and built according the code

the reason analyses of severe damages in the masonry structures

and the suggestions on the mitigation of damages of similar structures in future earthquakes.At the same time

this paper also discusses the application of precast slabs in seismic zones

points out that the government should not limit the use of precast slabs.Finally

the paper recommends applying new structural systems of integral prefabricated buildings with better economy

quicker construction

and more reliability in structural functioning.