【摘要】 为了深入研究端板连接节点的抗震性能及其影响因素，建立9组有限元模型并与试验结果进行对比验证，研究了轴压比、柱腹板厚度、梁翼缘厚度和端板厚度等参数对端板连接节点抗震性能的影响。结果表明：端板连接节点具有良好的抗震性能,延性系数和能量耗散系数均满足要求；增大柱腹板厚度是提升节点抗震性能最有效的方式,可以显著提高节点的刚度、极限承载力和耗能能力；适当增大梁翼缘厚度和端板厚度也能够提高节点的抗震性能；而轴压比的增大会导致节点延性降低，因此设计时应注意控制轴压比不宜过大。更多还原

【Abstract】 To thorough investigate the seismic performance of end-plate connections and their influencing factors,nine sets of finite element models were established and validated against experimental results. The study examined the effects of parameters induding axial compression ratio,column web thickness,beam flange thickness,and end-plate thickness on the seismic performance of end-plate connections. The results indicated that endplate connections possess excellent seismic performance,with both ductility coefficient and energy dissipation coefficient meeting the speafied requirements. Increasing the column web thickness was dentified as the most effective way to enhance the seismic performance of the connections,significantly enhancing their stiffness,ultimate bearing capacity,and energy dissipation ability. Appropriately increasing the thicknesses of the beam flange and the end plate also improved the seismic performance. However,an increase in the axial compression ratio resulted a reduction in ductility;therefore,it is essential to control the axial compression ratio below specified limits during design.更多还原