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提出利用槽形钢折板补强H型钢梁-H型钢柱的偏心节点,并研究了该偏心节点的力学性能。提出偏心节点的节点域承载力计算方法,分析中考虑了由于梁偏心引起的附加扭矩的影响。同时进行了T字形梁柱构件的循环荷载试验,验证偏心节点的滞回性能。试验结果表明,节点具有良好的延性和耗能性能,节点域承载力计算公式具有良好的精度。以十字形梁柱构件为模型,进行非线性有限元数值分析,考察槽形钢折板的厚度对偏心节点域变形和承载力的影响。
The eccentric node of H-beam-H beam was reinforced by slotted steel plate, and the mechanical properties of the eccentric node were studied. The calculation method of node bearing capacity of eccentric node is proposed. The influence of additional torque due to eccentricity of beam is considered in the analysis. At the same time, the cyclic loading test of T-shaped beam and column members was carried out to verify the hysteretic behavior of eccentric joints. The experimental results show that the joints have good ductility and energy dissipation performance, and the formulas for calculating bearing capacity of joints have good accuracy. The cross-shaped beam and column members are used as a model to analyze the influence of the thickness of slotted steel plate on the deformation and bearing capacity of the eccentric node by nonlinear finite element numerical analysis.