夏  林，  沈  淳
    （中建国际（深圳）设计顾问有限公司，上海 200235）

[摘要] 作为结构薄弱部位的连接楼板在承受竖向荷载的同时，也承担着传递水平荷载作用到抗侧力体系上，已有研究表明，目前的简化设计方法不能准确地应用于复杂结构的薄弱连接楼板设计。本文采用分块刚性模型，利用时程分析法得到薄弱连接楼板内力，并进行了中震下薄弱连接楼板的抗震性能分析及结构设计，对可能影响结构内力的楼板厚度、材料强度、板带宽度进行参数分析，最后给出设计建议，为进一步研究地震作用下复杂楼板内力分布提供一定的参考借鉴价值。
[关键词] 时程分析；弱连接楼板；分块刚性
中图分类号：TU375.2  文献标识码：A  文章编号：1002-848X(2011) Sl-0116-04

Seismic performance analysis of weak-linking RC slab
Xia Lin, Shen Chun
( China Construction Design International,  Shanghai 200235,  China)

Abstract: As the weak part of one structure, the linking RC slab are bearing the vertical load, at the same time, the horizontal force is also distributed to the lateral-resisting system through the slab. In normal design process, the slab acted as rigid member in structure. However, researchers have observed tlus simplistic design methods provide a poor representation of the true structural response in some cases. This research investigated the intemal forces of concrete floor diaphragms in buildings using response spectrum method and time-history dynamic response analyses. Compared two methods, time history response analysis was recommended using in the complex floor diaphragms design. Furthermore, the factors affected the intemal force distribution were discussed.  Based on these studies, the design suggestions are given. Tlus research could aid the improvement of seismic floor diaphragm design in future.
Keywords: time-history dynamic response analyses; weak-linking RC slab; partial-rigid diaphragm