Analysis of RC structures subjected to seismic loads vary greatly around the world, from simplified static models to more advanced methods, which take account of real dynamic loads and the nonlinear response of structures. As a recent theory, lumped damage mechanics apply the concepts of damage mechanics and the classic fracture in plastic hinges for nonlinear analysis of RC structures. Therefore, this research analysed the behaviour of RC dual system structures designed according to Brazilian Standards Codes, that did not consider the recommendations of NBR 15421, under seven real seismic loads, with magnitude units in Richter scale (ML). It was concluded that all structures regardless of structural system and number of storeys might suffer severe values of structural damage when subjected to earthquake magnitudes equal or greater than 5.0 ML. Besides that, even for earthquake magnitudes above 3.0 ML, in most of structures, the interstorey drift ratio was not in requirements with international standard codes, causing cracking in nonstructural elements and demanding higher repair costs.

从简化的静态模型到更高级的方法，考虑到真实的动态载荷和结构的非线性响应，全世界承受地震载荷的RC结构的分析差异很大。作为一种最新理论，集总损伤力学将损伤力学的概念和塑料铰链中的经典断裂应用于RC结构的非线性分析。因此，本研究分析了根据巴西标准规范设计的RC双系统结构的性能，该结构未考虑NBR 15421的建议，在7个实际地震荷载下，其震级单位为里氏标度（ML）。得出的结论是，当地震级别等于或大于5.0 ML时，无论结构体系和层数如何，所有结构都可能遭受严重的结构破坏。