建筑结构的抗震性能主要依赖于结构本身吸收地震能量的能力.钢筋混凝土结构一般具有较大的非弹性变形,是延性的;但如设计不当,也可能是脆性的.图1为二个具有相同强度的梁,由于混凝土截面配筋量和配置方法不同,其变形能力差别很大. The seismic performance of a building structure depends mainly on the ability of the structure itself to absorb seismic energy. Reinforced concrete structures generally have large non-elastic deformations and are ductile; but if not properly designed, they may also be brittle. Figure 1 is two with the same The strength of the beam, due to the amount of reinforcement in the concrete section and the configuration method is different, its deformation ability is very different.