Seismic damage analysis of industrial buildings in 2008 Wenchuan earthquake

Based on the damage field survey of the industrial buildings in Wenchuan earthquake,the typical building seismic damage characteristics of industrial structures were summarized and analysed.According to the damage phenomena,the following conclusions are drawn: usually,the main structures of industrial buildings suffered serious damage,in which the roof system were distorted and collapsed,the bent-frame columns were crushed and yielded,the bracing system was broken.When the main structures of industrial buildings suffered minor damage,the non-structural components were remarkbly damaged,including the end bays in the longitudinal direction,high gables,the cantilevered walls between two spans with different heights and the foundation.Then damage rules and reasons are summed up and damage characteristics and corresponding design and retrofitting suggestion are proposed.At the end of the paper,it is indicated that the seismic design of major structure and non-structural members of industrial buildings must fully comply with the seismic design code,seismic assessment and seismic strengthening should be carried out at regular intervals for the existing industrial buildings,which have served for a long time and whose fortification level does not meet the requirements.