The corridors in school buildings often use single span frame structures,but there is less quantita-tive evaluation criterion of the seismic collapse resistance of single span frame structures.17 corridor frame mod-els were designed according to the Code for Seismic Design of Buildings(GB 50011-2010),and the collapse vulnerability analysis based on dynamic incremental analysis method was conducted.The collapse probability and safety reserve coefficient were used to quantitatively evaluate the seismic collapse resistance of each model.The results showed that in this case,the single span frame structure had a higher redundancy in collapse resist-ance compared to the double span frame structure.The Class B single storey single span frame structure could improve the seismic collapse resistance by improving seismic measures or earthquake actions by one seismic in-tensity,making the probability of structural collapse within an acceptable range.Moreover,improving seismic actions could better enhance the seismic collapse resistance than improving seismic measures.Improving the seismic performance of frame beams produced little effect on the seismic collapse resistance,while improving the seismic performance of frame columns could greatly improve the seismic collapse resistance.Evaluating the cost of normalized safety reserve coefficient,improving the seismic performance of frame columns were more econom-ical than improving structural seismic measures by raising one seismic intensity.
Single span frame structureVulnerability analysisSeismic collapse resistanceSeismic measuresSeismic performance
万方数据
维普
