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钢框架翼缘削弱型和扩翼型节点受力性能研究
引用本文:王燕,郁有升,王悦,刘秀丽.钢框架翼缘削弱型和扩翼型节点受力性能研究[J].力学与实践,2010,32(1):46-53.
作者姓名:王燕  郁有升  王悦  刘秀丽
作者单位:青岛建筑工程学院土木工程系 青岛理工大学
基金项目:国家自然科学基金(50778092);;山东省自然科学基金(Y2006F10)资助项目
摘    要:采用翼缘削弱型节点及扩翼型节点可以使塑性铰外移,缓解梁柱节点连接处应力集中,避免在焊接热影响区发生脆性破坏.针对削弱型节点、扩翼型和普通刚性节点进行了数值分析,结果表明:削弱型节点由于梁翼缘削弱,导致节点承载力降低,扩翼型节点增加了梁端翼缘板宽度,承载力高于削弱型节点和普通刚性节点.通过计算模型分析了节点的设计参数,并给出节点设计参数取值范围,为钢框架节点抗震设计提供理论分析依据.

关 键 词:塑性铰  翼缘削弱型节点  扩翼型节点  有限元分析  
收稿时间:2009-06-05

THE MECHANICAL BEHAVIOR OF NODES OF REDUCED BEAM SECTION AND WIDENED BEAM SECTION IN STEEL FRAMES
WANG Yan , YU Yousheng , WANG yue , LIU Xiuli.THE MECHANICAL BEHAVIOR OF NODES OF REDUCED BEAM SECTION AND WIDENED BEAM SECTION IN STEEL FRAMES[J].Mechanics and Engineering,2010,32(1):46-53.
Authors:WANG Yan  YU Yousheng  WANG yue  LIU Xiuli
Affiliation:*/a>;2;Department of Civil Engineering/a>;Qingdao Technological University/a>;Qingdao 266033/a>;China;Shandong Pharmaceutical Industry Designing Institute/a>;Shanghai Branch/a>;Shanghai 200060/a>;China
Abstract:Both nodes of reduced beam section and widened beam section can make the plastic hinge shift away from the beam and column interface to relieve the stress concentration in the connections,to avoid brittle fracture in weld.3-D finite element models were used to analyze the mechanical properties of nodes of reduced beam section and widened beam section and ordinary nodes using ANSYS.The analysis results show that the bearing capacity of nodes of the reduced beam section is reduced due to weakened beam flanges...
Keywords:steel frame  relocation of plastic hinge  finite element analysis  design parameters  
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