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在汶川地震后的震害统计中发现,倒塌并造成人员伤亡的主要是多层砌体结构,因此对多层砌体结构进行动力分析研究,了解多层砌体结构在地震作用下的破坏过程成为一件有意义和有必要的工作。结合汶川地震,阐述多层砌体结构在地震作用下的破坏特征,研究如何通过数值模拟得到能反映多层砌体结构在地震作用下的开裂压碎情况的破坏过程。通过有限元软件ANSYS,探讨了多层砌体结构动力分析中的有限元建模分析方法,提出运用砌体等效体积单元,建立多层砌体结构的方法能有效模拟在地震作用下多层砌体结构随着时间历程的发展而产生的开裂压碎等破坏过程,为多层砌体结构的模拟分析提供技术支持。
After the Wenchuan earthquake earthquake damage statistics found that the collapse and cause casualties are mainly multi-story masonry structure, so the multi-story masonry structure dynamic analysis to understand the multi-story masonry structure under the action of the earthquake damage Become a meaningful and necessary job. Combined with the Wenchuan earthquake, the failure characteristics of multi-story masonry structures under earthquake action are expounded, and the failure process that can reflect the cracking and crushing of multi-story masonry structures under earthquake action is studied through numerical simulation. Through the finite element software ANSYS, the finite element modeling and analysis method in multi-story masonry structure dynamic analysis is discussed. The method of building masonry equivalent volume element and building multi-story masonry structure can effectively simulate the multi-layer masonry structure under multi- Masonry structure with the development of the course of time caused by cracking and crushing failure process for multi-story masonry structure simulation analysis and provide technical support.