摘要
通过对未设内隔板的方钢管混凝土柱-钢梁一般狗骨式节点有限元分析,提出方钢管混凝土柱-钢梁翼缘加强型狗骨式节点,并采用有限元软件ANSYS对方钢管混凝土柱-钢梁狗骨式节点进行非线性有限元分析。分析在低周反复荷载作用下,方钢管混凝土柱-钢梁狗骨式节点的抗震性能。结果表明:翼缘加强型狗骨式节点具有良好的延性和耗能能力,翼缘的加强使节点初始刚度增加明显。
Based on the FEM analysis of general dog-bone connections between concrete-filled square steel tube （no inner diaphragm） and steel beam, the dog-bone connections with beam flange strengthened between concretefilled square steel tube and steel beam are developed. The nonlinear FEM analysis is carried out using ANSYS and the seismic resistance of dog-bone connections is analyzed under the cyclic loading. It is found out that the dog-bone connections with beam flange strengthened have good ductility and energy dissipation behaviors, and the initial stiffness increase clearly.
出处
《钢结构》
2009年第5期24-27,70,共5页
Steel Construction
基金
江苏省普通高校自然科学研究计划资助项目(04KJB560049)
关键词
方钢管混凝土柱
狗骨式节点
低周反复荷载
抗震性能
concrete-filled square steel tubular column
dog-bone connections
cyclic loading
seismic resistance
