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我们知道,现行规范是从力的单一指标来设计结构抗震的。但是,实际震害和试验数据都表明,结构在地震中所承受的地震力和在试验中所具有的抗侧力,均比规范计算的地震荷载大得多,而且随着结构类型的不同而有所变化,这是因为各类结构在大地震或大推力作用时都会发生显著的应力超限。具有较大抗变形能力的结构(如钢筋混凝土结构等),可能在大地震中能抵御比
We know that the current specification is designed from the single indicator of strength to design structural earthquake resistance. However, actual seismic damage and experimental data show that both the seismic forces experienced by the structure in the earthquake and the lateral forces encountered in the test are much larger than the seismic load calculated by the standard, and with the different types of structures The change is due to the fact that all types of structures will experience significant stress overruns during large earthquakes or high thrust forces. Structures with large deformation resistance (such as reinforced concrete structures, etc.) may be able to resist