传统风格钢筋混凝土梁-柱节点抗剪机理分析与抗剪承载力计算*
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（1 西安建筑科技大学土木工程学院， 西安 710055；2 华南理工大学亚热带建筑科学国家重点实验室， 广州 510640)［摘要］结合传统风格钢筋混凝土梁-柱中节点的低周反复荷载试验结果，分析了传统风格钢筋混凝土梁-柱节点的受力机理及影响节点抗剪承载力的主要因素。结果表明：传统风格钢筋混凝土梁-柱节点受力机理及抗剪承载力与常规梁柱节点有显著区别，其开裂荷载及抗剪承载能力大小主要取决于下核心区强度；节点抗剪承载力主要影响因素为混凝土强度、节点体积配箍率、轴向力及上、下梁间距。基于抗剪机理分析及主要影响因素分析，提出了传统风格钢筋混凝土梁-柱节点的开裂荷载和抗剪承载力的计算公式，根据试验结果确定了相关系数。研究成果可为该类结构的工程实践提供参考。［关键词］传统风格现代建筑; 钢筋混凝土梁-柱节点; 抗剪机理; 开裂荷载; 抗剪承载力中图分类号：TU375.4 文献标识码：A 文章编号：1002848X(2014)19-0081-06Shear mechanism analysis and shear capacity calculation of the RC column-beam joint built in traditional styleXie Qifang1,2 , Li Peng1, Wang Long1, Sui Yan1(1 School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China; 2 State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China)Abstract:The mechanical behavior and the main factors of the shear capacity of the RC column-beam joint built in traditional style were analyzed based on the results of low cyclic loading test conducted on the RC column-beam joint built in traditional style. The results show that the mechanical behavior and shear capacity of the RC column-beam joint built in traditional style have significant difference with that of the ordinary beam-column joint. The crack load and shear capacity of the RC column-beam joint built in traditional style mainly depend on the strength of the lower core. The main factors of the shear capacity are the concrete strength, stirrup volume ratio of the joint, axial load and the space between up and low beams. Based on the shear mechanism and the main factors of shear capacity analysis, the formulas for crack load and shear capacity of the RC column-beam joint built in traditional style were put forward, and the correlation coefficients were determined according to the test results. The research results can provide reference for engineering practice of this kind of structure.Keywords:modern architecture built in traditional style; RC beam-column joint; shear mechanism; crack load; shear capacity*国家自然科学基金项目（51208411），陕西省青年科技新星项目（2013KJXX-56），亚热带建筑科学国家重点实验室开放课题（2014KA05），西安市科技计划项目（CX1262④）。作者简介：谢启芳，博士，副教授，Email：nacy.xie@163.com。参考文献［1］张兰香. YJGF 47—2002大型仿古建筑混凝土结构构架施工工法［J］. 施工技术, 2005, 34(3): 80-83.［2］谢永良. 钢筋混凝土仿古建筑结构施工技术［J］. 建筑施工, 2005, 27(10):57-60.［3］张明. 九华山回香阁万佛塔结构动力分析［D］. 太原：太原理工大学, 2005.［4］张宣关，薛永武，武云飞. 法门寺合十舍利塔钢骨结构施工应力测试与研究［J］.施工技术, 2010, 39(S1): 266-269.［5］王宏旭，周华新，董欢涛，等. 天人长安塔钢混组合结构应用技术［J］. 施工技术, 2011, 40(2):31-33.［6］王其均. 中国建筑图解词典［M］. 北京：机械工业出版社，2006.［7］框架节点专题研究组.低周反复荷载作用下钢筋混凝土框架梁柱节点核心区的受力性能［J］.建筑结构，1983，13（6）：14-19.［8］白国良，李红星，朱佳宁. 钢筋混凝土框架异型节点抗震性能试验研究［J］. 建筑结构学报, 2004, 25(4): 8-14.［9］赵鸿铁.钢筋混凝土梁柱节点的抗裂性［J］. 建筑结构学报, 1990, 11 (12):38-48.［10］刘瑛, 马乐为. 七个足尺加固节点的抗裂强度试验分析［J］. 工业建筑, 1999, 29(6):55-57.［11］薛伟辰，刘文如.钢筋混凝土圆柱节点抗裂度和抗剪强度计算［J］.四川建筑科学研究，1996,22(4)：2-7.［12］郑七振，魏林. 钢纤维混凝土框架节点抗剪承载力的试验研究与机理分析［J］.土木工程学报，2005, 38(9): 89-93.［13］马克俭，柳炳康，黄慎江. 钢筋混凝土框架梁柱偏心节点抗剪承载力计算［J］. 工程力学，1999,16(A02):37-42.［14］唐九如.钢筋混凝土框架节点抗震［M］. 南京：东南大学出版社，1989.
