装配式混凝土剪力墙结构水平缝抗剪机理及承载力计算方法综述*
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（1 清华大学土木工程安全与耐久教育部重点实验室，北京 100084；2 清华大学建筑设计研究院有限公司，北京 100084）
［摘要］归纳了现有装配式混凝土剪力墙水平缝的连接方式和混凝土界面构造，综述了对界面抗剪机理的认识和国内外规范中的水平缝受剪承载力计算方法。通过对一座剪力墙结构中典型墙体水平缝受剪设计算例和对已有界面抗剪试验结果的计算分析，比较了既有典型计算公式间的差异。发现现行规范中的计算公式均基于剪切摩擦理论，大多来源于新旧混凝土叠合面抗剪试验研究成果，所有计算公式均保守估计了水平缝叠合面的受剪承载力，但其中一些公式对拼缝齿槽面的设计结果偏不安全。基于上述分析，建议对水平缝叠合面可采用《装配式混凝土结构技术规程》（JGJ 1—2014）中的公式进行计算，对于拼缝齿槽面可参照《装配式混凝土结构技术规程》（JGJ 1—2014）或《预制装配整体式房屋混凝土剪力墙结构技术规范》（DB23/T1400—2010）进行计算；建议对现有装配式混凝土剪力墙水平缝应根据界面类型做进一步系统的专门研究，考虑复合受力、材料性能、加载方式、轴向压力及总受剪承载力限值等因素的影响，提出能准确预测、简单方便的受剪承载力计算公式。［关键词］装配式; 剪力墙; 水平缝; 剪切摩擦; 受剪承载力中图分类号：TU973.16, TU973.2 文献标识码：A 文章编号：1002-848X(2015)12-0040-08Review of studies on shear resisting mechanisms and calculating formulas of shear resisting capacity of horizontal joints in fabricated reinforced concrete shear wall structuresZhao Zuozhou1, Zhou Jian1, Hou Jianqun2, Ren Baoshuang2(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing 100084, China; 2 Architectural Design and Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China)Abstract: Different detailing methods and concrete interfaces of horizontal joints in fabricated reinforced concrete shear wall structures have been summarized, and researches on shear resisting mechanisms and the available calculating formulas of shear resisting capacity have been reviewed. Typical formulas have been compared by a design example and analysis of shear resisting test results of concrete surface. The comparisons have revealed that the available formulas are mainly based on shearfriction theory and derived from the experiment results of the shear joint interface between the existing and the new concrete. The shear resisting capacities of the composite interface predicted based on the formulas are conservative. However, the shear resisting capacity of the horizontal joints with shear keys might be overestimated in some cases. The shear resisting capacity of the composite interface can be predicted by the formula in Technical specification for precast concrete structures（JGJ 1—2014）, the shear resisting capacity of joints with shear keys can be calculated by Technical specification for precast concrete structures（JGJ 1—2014）or Technical specification for concrete shear wall structure assembled with precast components（DB23/T1400—2010）. It has been proposed that a systematic study on shear behavior of horizontal joints of the existing fabricated reinforced concrete shear wall structures, and considering combined force condition，material property，limit of axial compression force and total shear resisting capacity should be carried out to get a reliable and friendly usable formula.Keywords:fabricated; shear wall; horizontal joint; shear friction; shear resisting capacity
*国家高技术研究发展计划（863计划）课题（编号2013AA041307），清华大学自主科研基金项目(2012THZ02-1)。作者简介：赵作周，博士，副教授，Email：zzzhao@tsinghua.edu.cn。
