基于隔震设计简化算法对新型村镇隔震支座参数选取及隔震效果的分析

The analysis of the new isolation bearing of villages with parameter selection and isolating effect based on simplified calculation of isolation design

农村地区建构筑物抗震能力不足的问题较为突出,新型村镇用隔震支座为此提供了解决途径。在应用于农村地区的同时,需初步确定支座参数,快速判断该支座隔震效果。结合某农村2层砌体结构实际工程,基于《建筑抗震设计规范》(GB50011-2010)附录L所提出的隔震设计简化计算方法,逐步确定支座参数,分析设防地震及罕遇地震作用下支座隔震效果,得出支座水平刚度在参数中起控制作用、罕遇地震作用下减震效果良好等方面结论。

Although there is an outstanding problem that the seismic capacity is deficient in rural area,the new isolation bearing of villages can solve this problem.When it applied in rural area,the bearing parameters should be determined initially,and the isolating effect should be judged quickly.Therefore,the paper combined with real project which is masonry structures with two-layer in rural area,based on simplified calculation of isolation design from Code for seismic design of buildings,determined the bearing parameters gradually,and analyzed the isolating effect in design earthquake and rare earthquake.Finally,the paper obtained some conclusions such as that the key parameter of the isolation bearing is horizontal stiffness,and the isolating effect in rare earthquake is pretty good.