配置钢骨的异形柱框架边节点抗震性能试验研究  

Experimental Study on Seismic Performance of Specially Shaped Column Frame of Edge Joints Strengthened with Steel

作　　者：戎贤[1,2] 仉庆文[1,2] 赵玉婷[1,2] 

机构地区：[1]河北工业大学土木工程学院,天津300401 [2]河北省土木工程技术研究中心,天津300401

出　　处：《建筑科学》2014年第11期61-64,共4页Building Science

基　　金：河北省自然科学基金项目(E2011202013);河北省高等学校科学技术研究青年基金项目(Q2012083);河北省高等学校科学技术研究重点项目(ZD2010123)

摘　　要：框架节点处多数由于钢筋密集导致混凝土振捣不密实等结果,梁柱节点成为异形柱抗震的薄弱部位。本文通过拟静力试验对在节点核心区配置T型钢和槽型钢以及没有任何增强措施的3根异形柱边节点构件进行研究,对比分析这些构件如下的抗震性能:破坏特征、承载能力、滞回曲线及延性。研究结果表明:在节点核心区配置钢骨有助于提高节点的承载力、变形能力和延性性能,能够改善节点在强度及刚度等方面快速破坏的脆性方面的特征,有助于提高异形柱边节点的抗震能力。The concrete of frame joints usually can not be vibrated well because of the intensive steel bar in this position, so the beam-column joints easily become the weak parts of the specially shaped column frame in earthquake. Through a quasi - static test, a study of the joints of three kinds of specially shaped columns is carried out： the joints with T-shaped steel, the joints with channel-shaped steel and the joints without any strengthened method. Then, the joints＇ seismic properties such as the failure characteristics, carrying capacity, hysteresis loop and ductility are compared and analyzed. The results show that the joints core strengthened with steel improves the bearing capacity, deformation capacity and ductility performance. Besides, the strength and stiffness characteristics of the joints can be improved in the rapid destruction of brittleness aspects. In addition, the seismic capacity of the edge joints of specially shaped column frame can be also improved.

关 键 词：异形柱 边节点 钢骨 抗震性能 

分 类 号：TU375.303[建筑科学—结构工程]