十字形加劲肋正方形钢箱截面短柱极限状态有限元分析研究  

FEM Analytical Study on Ultimate State of Square Steel Box-section Stub Column with Inner Cruciform Walls

作　　者：王占飞[1] 葛琳[1] 白利婷[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《北方交通》2013年第7期35-38,共4页Northern Communications

基　　金：国家科技支撑项目(2012BAJ13B05);住宅和城乡建设部(2010-K2-11)

摘　　要：采用具有十字形加劲肋的钢箱截面短柱作为分析对象,考虑组装时焊接影响,利用MARC软件进行了短柱压弯荷载作用下的FEM弹塑性分析。变化宽厚比及轴压比等参数,对分析模型的极限应变、应力分布及变形等极限状态进行了研究。结果表明:宽厚比及轴压比参数对短柱的最大承载力和极限状态有较大影响,宽厚比和轴压比参数较小的短柱具有较好的抗震性能。In this paper,considering to the welding affect when assembled,the elastio-plastic analysis of square steel box-section stub column is carried out by the finite element package MARC.Change the width-to thickness ratio parameter,axial load ratio parameter and others to study the ultimate strain,stress distribution,deformation and other ultimate state of the analytical model.The results shows that the width-to-thickness ratio parameter and axial load ratio parameter both have a great affect on the maximum bearing capacity and ultimate state of the stub column,and the stub column has better seismic performance when its width-to-thickness ratio parameter and axial load ratio parameter are smaller.

关 键 词：十字形加劲肋 箱型截面 钢桥墩 极限状态 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]