钢管混凝土柱-环梁节点受力分析  

MECHANICAL BEHAVIOR OF CONCRETE FILLED STEEL COLUMN RC-RING BEAM JOINT

作　　者：杨维国[1] 赵雅[1] 陈丹[1] 刘武华[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《低温建筑技术》2010年第11期40-43,共4页Low Temperature Architecture Technology

摘　　要：为了了解钢管混凝土柱-钢筋混凝土环梁节点的受力性能,使用通用有限元软件对此种节点进行了静载和低周反复荷载作用下的非线性有限元分析。分析结果给出了节点裂缝发展情况、破坏形态、梁端弯矩转角滞回曲线。结果表明:钢管混凝土柱-钢筋混凝土环梁节点能够实现"强连接、弱构件"的抗震设计概念。基于分析结果对此节点设计提出以框架梁轴线为中心±25°环梁范围内箍筋加密的建议。In order to know the behavior of the concrete filled steel tube column-RC-ring beam joint,we analyzed the joint under static loading and low-cycle reversal loading by the finite element software.The simulative results include the crack propagation,failure patterns as well as the moment-rotation hysteresis loops.The test results reveal that it is obvious that the seismic design concepts of the strong connect-weak element has been achieved.Based on the research conclusion in the paper,the suggestion that intensifying stirrup of RC-ring plus or minus 20 degrees of frame beam axis was proposed.The research may be referred by correlative practical engineering.

关 键 词：钢管混凝土柱 钢筋混凝土环梁 有限元 破坏形态 

分 类 号：TU375[建筑科学—结构工程]