【摘要】 目前采用不同材料及构造工艺的装配式预制墙板层出不穷,然而相较于传统砌筑墙,具有更高强度与刚度的预制墙板对主体结构的受力影响,特别是地震作用下二者相互作用的影响,截至目前仍未定论。针对目前常用装配式预制墙板与主体结构的连接构造,结合既有墙板承载力及墙板与主体结构相互作用影响的研究,探讨了装配式预制墙板的设计方法。结果表明,装配式预制墙板的设计模式主要可归纳为:①完全避免墙板与主体结构相互作用;②完全考虑墙板参与结构抗震的贡献;③只考虑罕遇地震作用下墙板对结构的抗侧力贡献。设计模式①需采用较宽的拼缝,故易导致诸如防水嵌缝、建筑饰面的处理难以施工;设计模式②采用锚固构造使墙体与主体结构紧密连接,因而在中震下即令防水嵌缝破坏且维修不便;设计模式③在墙板与主体结构间采用柔性连接,一方面可满足中震以下工况中墙板与结构的协同变形,另一方面若设计参数选取得当在大震下墙板将以对角斜撑的受力模式增加结构整体的侧向刚度及抗震耗能性能,满足我国抗震规范的三水准设防要求,是推荐的设计方案。更多还原

【Abstract】 Nowadays many different materials and construction technologies are used for manufacture of prefabricated wall. However,the influence on the mechanical behaviors of main structure,caused by prefabricated wall panels,which are more rigid and stronger than traditional masonry walls,is still by now unresolved,especially not for seismic interactions between prefabricated walls and main structural members. In this paper,the design method of assembly prefabricated wall is studied in view of the commonly used joint details between prefabricated walls and main structural members combined with existing researches on the bearing capacity of prefabricated wall itself and interaction effect between them. According to the results,there are three main design modes for assembly prefabricated walls at present:① Totally avoiding the interaction between wall panels and main structural members;② Designing to make them tightly connected;③ Only allowing their interaction at the case of rare earthquake. In design mode ①,waterproof sealing and building facing are hard to conduct because of the demand on wide stitches between structural members and wall panels. In design mode ②,anchoring construction details are utilized to connect wall panels and structural members closely,thus makes waterproof sealing materials prone to damaged and hard to retrofit even at the case of medium earthquake. In design mode ③,flexible connections are used to make wall panels and structural members deform less interactively at the case of below intermediate earthquake,and the prefabricated wall panels will act as diagonal bracer at the case of rare earthquake to increase the overall stiffness and seismic energy consumption ability of the building. It satisfies the three-level anti-seismic design requirements of Chinese specifications so that is also recommended.更多还原