(1 中国建筑标准设计研究院有限公司， 北京 100048； 2 清华大学土木工程系， 北京 100084)

［摘要］预制混凝土外挂墙板的板间接缝直接影响外挂墙板的抗震、抗风以及防水性能，目前国内缺乏相关设计指导文件，因此有必要对外挂墙板的板间接缝宽度开展相关的研究。首先结合国标上预制混凝土外挂墙板的性能目标研究了外挂墙板板间接缝宽度的计算方法；其次参考国外文献研究了温度作用下接缝两侧墙板的相对变形和计算用温差；再次研究了风荷载与地震作用下外挂墙板的变形特点，并根据变形特点研究了建筑各部位接缝两侧墙板的相对变形值；然后结合荷载规范研究了变形值的组合计算公式；接着参考国内外文献研究了接缝宽度及密封材料厚度的限值；最后给出了三个具体算例，得到了建筑角部平移式外挂墙板竖缝宽度容易超出限值的结论并给出了建筑角部局部配筋加强等建议。

［关键词］预制混凝土外挂墙板； 装配式建筑； 变形分析； 接缝宽度

中图分类号：TU375文献标识码：A文章编号：1002-848X(2019)11-0001-08

Research on seam width of precast concrete facade panel

Yu Yinquan1, Xiao Ming1,2, Wang Zan1, Xu Xiaotong1, Liu Jianfei1， Feng Haiyue1

(1 China Institute of Building Standard Design & Research， Beijing 100048， China；2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)

Abstract:Since the seam width of the facade panels directly affects the seismic, wind and water resistance of the facade panels, and there are few relevant design guidance files in China. Therefore, it is necessary to carry out relevant research on the seam widths of the facade panels. Firstly, the calculation method of indirect seam width of facade panels were studied from the consideration of the performance-based design goals in Chinese codes. Secondly, the relative deformation and temperature difference of facade panels on both sides of seams under temperature were studied by referring to foreign literatures. Thirdly, the deformation characteristics of facade panels on both sides of seams under wind load and earthquake load were studied, and the relative deformation values of facade panel on both sides of seams in different parts of buildings were studied according to the deformation characteristics. Fourthly, combined calculation formulas of deformation values were studied by referring to domestic and foreign literatures. Fifthly, the limit values of seam width and sealing material thickness were studied by referring to domestic and foreign literatures. Finally, three specific examples were given, and the conclusions are given that the vertical seam width of building corner translational facade panels is easy to exceed the limited value, and some suggestions for strengthening the local reinforcement of building corner are provided.

Keywords:precast concrete facade panel; assembled building; deformation analysis; seam width

作者简介：郁银泉，教授级高级工程师，一级注册结构工程师，Email: yuyq@cbs.com.cn。