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一、框架的抗震变形验算我国抗震设计规范正在修订之中,在抗震设计方法上有若干重大修改,其中之一就是对高层与多层框架结构的抗震设计要进行抗震变形验算。从抗震设计的指导思想来看,进一步体现“小震不坏,大震不倒”的原则,实行“三水准、二阶段”的设计。第一水准是遭到常遇小震时建筑物不损坏,仍满足正常使用要求;第二水准是在基本烈度的地震作用下建
1. Seismic Deformation Checking of Frames Seismic design codes are being revised in China. There are several major changes in seismic design methods, one of which is to conduct seismic deformation checking on the seismic design of high-rise and multi-story frame structures. Judging from the guiding ideology of seismic design, it further embodies the principle of “small earthquakes are not bad, big earthquakes do not fall” and implements the design of “three levels and two stages”. The first level is that the building is not damaged when it encounters a small shock and meets the normal use requirements; the second level is built under the action of earthquakes with a basic intensity.