钢梁-圆钢管混凝土柱穿心连接抗震性能试验研究
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钱稼茹1，冯善文1，曹万林2，卢理杰3（1 清华大学土木工程安全与耐久教育部重点试验室， 北京 100084； 2 北京工业大学建筑工程学院，北京 100124； 3 北京京诚华宇建筑设计研究院有限公司， 北京 100053）［摘要］为研究钢梁圆钢管混凝土柱穿心连接的抗震性能，进行了3个大尺寸钢梁根部翼缘不处理的标准型、翼缘削弱型及翼缘扩大型节点试件的拟静力试验。试验结果表明：试件的破坏形态为钢梁根部坡口焊缝与钢管之间开裂，钢梁端部翼缘局部屈曲；钢梁悬臂端的极限位移角达004左右；钢梁固端弯矩悬臂端转角滞回曲线饱满；翼缘削弱型试件的极限承载力为标准型试件的78％。建议在抗震设计的建筑工程中，钢梁圆钢管混凝土柱可采用梁端部翼缘不处理的标准型穿心连接。［关键词］钢梁； 圆钢管混凝土柱； 梁柱穿心连接； 抗震性能； 拟静力试验中图分类号：TU317+.1文献标识码：A文章编号：1002848X(2013)12005705Test study on seismic behavior of through beam connections of steel beamsto circular concretefilled steel tube columnsQian Jiaru1, Feng Shanwen1, Cao Wanlin2, Lu Lijie3(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing100084, China;2 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;3 Beijing Jingcheng Huayu Architecture Design and Research Institute Co., Ltd., Beijing 100053, China)Abstract:To study seismic behavior of through beam connections of steel beams to circular concretefilled steel tube columns, quasistatic test of three largescale joint specimens with different steel beam flange were conducted. The test results indicate that: the failure modes of specimens are fracturing between the groove welds at the end of beam flange and the steel tube, and are local buckling of beam flanges; for all three specimens, the ultimate rotation at the cantilever end of steel beam reaches 004; the hysteretic loops of the steel beam fixed end momentcantilever end rotation are plump; the ultimate loadcarrying capacity of the flange weakened type specimen is 78% of that of the standard type specimen. It is recommended to use the standard type through beam connections of steel beams to circular concretefilled steel tube columns in the practice engineering projects.Keywords:steel beam; circular concretefilled steel tube column; through beam connection of beam to column; seismic behavior; quasistatic test*北京市科技计划重点项目(D09050600370000)，北京市教委科技计划重点项目(KZ200910005008)。作者简介：钱稼茹，教授, Email:qianjr@tsinghua.edu.cn。参考文献［1］JGJ 3—2010高层建筑混凝土结构技术规程［S］. 北京: 中国建筑工业出版社,2011.［2］陈鹃,王湛,袁继雄.加强环式钢管混凝土柱钢梁节点的刚性研究［J］.建筑结构学报,2004,25(4):4350.［3］苏恒强,蔡健,姚大鑫,等.钢管混凝土加强环式节点的试验研究［J］.华南理工大学学报：自然科学版, 2004, 32(1):8084.［4］PRION H G L, MCLELLAN A B. Connecting steel beams to concretefilled steel columns ［C］//Proc., ASCE Structures Congress on Composite Compression Members. New York, 1992: 918921.［5］ATOROD AZIZINAMINI, STEPHEN P SCHNEIDER. Moment connections to circular concretefilled steel tube columns［J］. Journal of Structural Engineering, ASCE, 2004, 130(2):213222.
