SEISMIC PERFORMANCES OF SINGLE-STORY INDUSTRIAL FACTORY BUILDINGS UNDER ELASTIC STRUCTURE DESIGN

Standard for Seismic Design of Industrial Buildings is being compiled, in which the structural categories are divided into three categories: plastic structure, elastic-plastic structure and elastic structure. Moreover, the structural performance coefficient q used in all kinds of types is proposed to adjust the seismic effect combination. For elastic structures, it is proposed that the performance coefficient q=2.0 and q_h=2.5 can be used for seismic calculation. In this study, the existing single-story single-span and multi-span bent structure were taken as examples and considered as elastic structure, the plane calculation model was established by using the improved PKPM software. The seismic effect was calculated under different fortification intensities. Under the intensity when the stress ratio of the column exceeded 1.0 for the first time, the elastic-plastic time history analysis of large earthquakes was carried out. It was clarified that the single-story industrial factory building would not collapse in large earthquakes on the premise of meeting the requirements of elastic structure design.