支管偏心对插板连接管节点承载力的影响分析  

Effect Analysis of Eccentricity on Ultimate Strength of Tube-gusset Plate Connections

作　　者：吴静[1] 

机构地区：[1]中国电力科学研究院,北京100055

出　　处：《特种结构》2009年第3期54-57,共4页Special Structures

摘　　要：通过有限元数值分析方法,开展了不同支管偏心距及主管径厚比对插板连接管节点极限承载力的影响研究。负偏心越大,节点承载能力随之增强,节点板材料也越经济;同时需留意,负偏心并不一定总是有利的。总之,偏心距及主管径厚比的影响应在工程设计中加以合理、有效的利用。Bused on methods of finite element numerical analysis, several finite element models about different parameters are calculated, including the eccentricity of bracing members and ratios of diameter and thickness for chords. Corresponding effects on ultimate strength of tube-gusset plate connections are concluded. With the increment of eccentricity, the ultimate strength of tube-gusset plate connections is enhanced and the size of gusset plate is reduced. Simultaneously it should be paid attention that the eccentricity is not always advantageous. In conclusion, effects of the eccentricity of bracing members and ratios of diameter and thickness for chords on ultimate strength of tube-gusset plate connections should be utilized appropriately and effectively.

关 键 词：管节点 插板连接 偏心 极限承载力 

分 类 号：TU392.3[建筑科学—结构工程]