等宽T型方管节点静力工作性能与设计

STATIC BEHAVIOR AND DESIGN OF FULL-WIDTH T-TYPE RHS JOINTS

采用非线性有限元分析方法研究了等宽T型方管节点的破坏模式 ,各几何参数及弦杆所受轴压荷载对节点性能的影响。将新修订的《钢结构设计规范》 (GB5 0 0 17-2 0 0 3 )中等宽T型方管节点的设计公式与国外普遍采用的设计公式、有限元计算结果及实验结果进行了比较。结果表明 ,我国钢结构设计规范给出的设计公式是合理可行的。

The failure modes of full-width T-type RHS joints subject to static loading and the influences of geometrical parameters and load on the chord on their behaviors are studied by use of nonlinear finite element method in this paper. The design formula of full-width T-type RHS joints adopted by the new design specification of steel structures (GB50017-2003) is compared with the experimental data, the design formula used widely in foreign countries and the calculating results of nonlinear finite element. The results show that the design formula proposed by the design specification of steel structures in our country is reasonable and viable.