采用新型节点的屈曲约束支撑混凝土框架有限元分析  

FINITE ELEMENT ANALYSIS OF CONCRETE FRAME WITH BUCKLING RESTRAINED BRACES USING A NEW TYPE OF JOINT

作　　者：宋永丰[1] 李帼昌[1] 杨志坚[1] 李嘉奇[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《工业建筑》2017年第3期12-17,共6页Industrial Construction

基　　金：国家自然科学基金项目(51178276);辽宁省高等学校创新团队支持计划课题(LT2014012);沈阳市科学技术计划项目(F16-076-8-00)

摘　　要：设计了一种屈曲约束支撑与混凝土框架连接的T型连接节点,采用有限元分析软件ABAQUS建立有限元模型,并利用试验结果验证了有限元分析结果的准确性。在此基础上,考察了采用屈曲约束支撑混凝土框架与无支撑混凝土框架的受力状况以及新型连接节点的工作性能。分析结果表明:新型T型钢锚固型连接节点稳定可靠,传力明确;屈曲约束支撑能显著改善混凝土框架的受力状况和工作性能,提高混凝土框架的抗侧刚度、承载能力和耗能能力等。A kind of T steel anchoring connection joint of buckling restrained brace and concrete frame was designed.ABAQUS finite element analysis software was used to set up FE models. The accuracy of the finite element analysis results was verified by the experimental results. Then the behavior of the BRBF and concrete frame without brace as well as the working performance of the connection joint were investigated. The analysis results showed that the T steel anchoring connection joint was stable and reliable,the transmission of load was clear as well; BRB could significantly improve the behavior,working performance,and also improve the lateral stiffness,bearing capacity and energy dissipation capacity of concrete frame.

关 键 词：屈曲约束支撑 连接节点 抗侧刚度 承载能力 

分 类 号：TU375.4[建筑科学—结构工程] TU352.11