平面凹凸不规则高层结构弱连接楼盖在水平地震作用下的抗震设计方法  

Seismic design method for weakly connected diaphragm of high⁃rise structure with concave convex irregular plane under horizontal earthquake action

作　　者：魏琏 罗嘉骏 王森 WEI Lian;LUO Jiajun;WANG Sen(Shenzhen Li Peng Engineering Research Structural Design Co.,Ltd,Shenzhen 518034,China)

机构地区：[1]深圳力鹏工程研究结构设计事务所有限公司,深圳518034

出　　处：《建筑结构》2023年第22期12-19,11,共9页Building Structure

摘　　要：一般建筑平面饱满规则时,楼盖设计主要由竖向荷载起控制作用,现行规范缺乏针对楼盖在水平地震作用下的内力计算方法和相应构造设计的规定。但是对于平面凹凸不规则结构的弱连接楼盖,水平地震作用可能会对楼盖配筋设计起到控制作用。通过总结已取得设计经验和研究成果,从弱连接楼盖面内实际受力出发,提出了弱连接楼盖面内受力抗震性能目标的相关建议,初步列出了弱连接楼盖一些基本构造要求,提出一个较为完整的弱连接楼盖的抗震设计方法。结果表明:该方法具有较可靠的理论基础和较清楚的物理概念,且考虑了双向地震等不利因素的影响,可更好满足结构抗震安全性的要求,可以在设计中推广使用。When the general building plane is full,the floor design is mainly controlled by vertical load,and the current code lacks methods for the internal force calculation method and the corresponding structural design for the floor under the horizontal earthquake.However,for the weakly connected diaphragm with concave convex irregular plane,the horizontal earthquake action may play a controlling role in the design of the floor reinforcement.Based on the design experience and research results obtained,some suggestions on the seismic performance target of weakly connected diaphragm were put forward,some basic structural requirements of weak connection diaphragm were listed,and a relatively complete seismic design method of weakly connected diaphragm were put forward.The results show that the method has a reliable theoretical basis and a clear physical concept,and takes into account the adverse factors such as bidirectional earthquake,which can better meet the requirements of seismic safety of structures,and can be widely used in design.

关 键 词：平面凹凸不规则 弱连接楼盖 水平地震作用 抗侧性能 受力特性 抗震设计方法 楼盖中面应力 顶部加强区 

分 类 号：TU318[建筑科学—结构工程]