钢结构端板连接节点抗震性能影响因素研究

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【中图分类号】：TU391 【文献标志码】：A 【文章编号】：1008-3197（2025）04-45-06

【DOI编码】：10.3969/j.issn.1008-3197.2025.04.011

The Influencing Factors of the Seismic Performance of End-plate Connections inSteel Structure

XIN Ningning'，WANG Guohui¹，WANG Kehan2，LI Zhenyu²，GUO Huaxin¹，MA Yan¹，LIU Liangjun¹，RONG Bin² （1.ChinaOth MetalurgcalGoupCorporationLimited，Shijiazuang19o，China;.ScholofchitetureadCivilEngiing， Tianjin University，Tianjin30o072，China）

【Abstract】：To thorough investigate the seismic performance ofend-plate connections and their influencing factors，nine sets of finiteelement models were established and validated against experimental results.The study examined the effects of parameters induding axial compresson 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 meting the speafied requirements.Increasing the column web thickness was dentified as the most effective way to enhance theseismic performance of the connections，significantly enhancing their stifness， ultimate bearing capacity，and energy dissipation ability.Appropriately increasing the thicknesses of the beam flange and the end plate also improved theseismic performance.However，an increase in the axial compression ratio resulted areduction in ductility；therefore，it is essential to control theaxialcompression ratio below specified limits during design.

【Key words】： prefabricated stel structure;end-plate connections;beam-column connections;seismic performance

装配式钢结构因轻量化、便捷施工、低污染、可回收利用、宽敞活动空间、强适应性和良好抗震性等综合优势，成为绿色建筑形式之一。（剩余4950字）