土木工程学院

International Symposium on Innovation & Sustainability of Structures in Civil Engineering

中文关键字：方钢管混凝土；边柱；内隔板式节点；试验研究；抗震性能，英文关键字：Concrete-filled steel square tube, Edge column, In

A total of three interior diaphragm connections which have only three of the edges welded to the tubes for concrete filled square steel tube with different axial compression force ratios had been tested under low-cyclic reversed loading at the end of column to research the failure modes, ductility, energy dissipation behavior. The experimental results demonstrated that the vertical force on the side of the interior diaphragm welded to the column flange was about one third of that on the other side. When the displacement of the top of column was approximate 70mm, the local buckling of the beam flanges occurred where the interior diaphragm was welded to the column flanges. The study results indicated that all specimens had very good ductility and energy dissipation capacity. The story angle drift ductility ratios are μ=3.40~3.45, the elastic and elasto-plastic story angular drift are φy=0.0075~0.0083rad and φu=0.0279~0.0286rad respectively, and the equivalent viscous damping coefficients are he=0.426~0.462, which met the requirements of the current code for seismic design of buildings. The interior diaphragm connection, which has only three of the edges welded to the tubes, can be used for edge column connections.

王先铁

周观根

haojiping,wangxiantie

Journal paper

卷：2

期：

页：1385~1390

no

2009-11-01