The bottom frame structure design method and example analysis本文将剖析底框结构这类作为我国现阶段经济条件下出现的特有结构形成的原因,以及分析底框结构在实际的运用过程中存在的优点以及缺点。结合汶川地震典型工程震害案例,简要分析了建筑物破坏以及倒塌的原因,说明了我国现行《建筑抗震设计规范》的合理性,总结了结构抗震概念设计、结构抗震设计和工程质量管理等方面的经验和教训,为建筑结构抗震设计与理论完善提供参考。This article will analyze the reasons for the formation of the bottom frame structure as the current economic condition of China's unique structure, and the advantage of bottom frame structure exists in the actual application process as well as the disadvantages. Combined with the typical engineering damage case of Wenchuan earthquake, a brief analysis of the building damage and collapse, illustrates the rationality of the current "code for seismic design of buildings", summarizes the structure seismic design concept, structure seismic design and engineering quality management and other aspects of the experience and lessons, provide a reference for the design and theory of aseismic building structure improvement.全文简述了底框结构的地震震害特点,论述了抗震设计中有关概念设计和计算分析的要求,针对该类结构的工程设计,结合设计实践,运用PKPM软件建立底框结构计算模型对设计要点进行分析。This paper describes the earthquake damage characteristics of bottom frame structure, discusses the requirements of the relevant concept design and calculation analysis of the seismic design, the structure design, combining with the design practice, using PKPM software to build the bottom frame structure on the design key points of calculation model.