修复后方钢管柱与H型钢梁全螺栓双夹板连接节点抗震性能试验研究  

Experimental study on seismic performance of H-section beam to square steel pipe column bolted double-splint connection after reparation

作　　者：刘学春[1,2] 崔小雄 张爱林[2] 詹欣欣[1] 徐路 商子轩[1] LIU Xuechun;CUI Xiaoxiong;ZHANG Ailin;ZHAN Xinxin;XU Lu;SHANG Zixuan(Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structures,Beijing University of Technology,Beijing 100124,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京工业大学北京市高层和大跨度预应力钢结构工程技术研究中心,北京100124 [2]北京建筑大学北京未来城市设计高精尖创新中心,北京100044

出　　处：《建筑结构学报》2018年第11期39-47,共9页Journal of Building Structures

基　　金：国家重点研发计划(2016YFC0701503);国家自然科学基金项目(51678010);北京市自然科学基金项目(8172009)

摘　　要：针对震后易于修复的装配式钢结构方钢管柱与H型钢梁全螺栓双夹板连接节点,已有拟静力试验表明该节点具有良好的抗震性能。为验证节点震后的修复能力,并获得节点修复后的抗震性能,对已进行过拟静力试验至破坏后的6个方钢管柱与H型钢梁全螺栓双夹板连接节点进行简单修复,即更换新螺栓并施加预紧力,再次进行拟静力试验研究。获得了修复后节点的滞回性能、骨架曲线、延性和破坏模式等抗震性能,并与原节点试验结果进行了对比分析,研究表明节点在进行简单修复后,滑移长度有所增大,强化阶段耗能能力稍有降低,但其仍具有较高的承载能力、塑性变形和耗能能力,且节点转动能力增强,其极限转角可以达到0.09 rad,满足抗震要求。This paper presents a kind of assembled steel structure with H-section beam to square steel pipe column bolted double-splint connection, which is easy to be repaired after earthquake. The existing research shows that the connection has good seismic performance. In order to verify the reparability of the connection after earthquake, and get the seismic performance after repairing of the connection, this research has carried out six groups of quasi-static tests on H-section beam to square steel pipe column bolted double-splint connections which were simply repaired after damage by replacing the bolts with new ones and applying pretension force. The hysteretie performance, skeleton curve, ductility and failure mode of the repaired connections were obtained, and the results were compared with the original connections. The results show that the slip length has increased after being simply repaired, and the capacity of energy dissipation in hardening stage is slightly lower, but still has better bearing capacity, deformation capacity and energy dissipation capacity. The rotation ability of the connection is also enhanced, whose limit angle has reached 0.09 tad, meeting seismic requirements.

关 键 词：梁柱连接 螺栓装配节点 可修复 拟静力试验 接触面滑移 抗震性能 

分 类 号：TU391[建筑科学—结构工程] TU317.1