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《建筑抗震设计规范》中规定框架结构在地震作用下应形成“强柱弱梁”的延性破坏机制,而各国震害表明,带填充墙的框架结构大多发生了层间机构破坏、短柱破坏等非延性破坏方式,因此填充墙对钢筋混凝土框架结构抗震性能的影响应当受到重视。介绍了实际震害中填充墙框架结构破坏形态,总结了各国规范对填充墙的考虑,归纳分析了填充墙框架的试验、数值分析及计算模型等相应的研究成果,并提出了研究方向。
The code for seismic design of buildings stipulates that the frame structure should form a ductile failure mechanism of “strong column and weak beam” under the action of an earthquake. However, the earthquake damage in various countries indicates that most of the frame structures with infill walls are damaged by the inter-layer mechanism and short Column failure and other non-ductile failure modes, the influence of infilled walls on the seismic performance of reinforced concrete frame structures should be taken seriously. This paper introduces the failure modes of infilled wall frame in actual earthquake damage, summarizes the consideration of infilled wall in different countries, summarizes the corresponding research results of the infilled wall frame experiment, numerical analysis and calculation model, and puts forward the research direction.