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.
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)
关键词
十字形加劲肋
箱型截面
钢桥墩
极限状态
Inner cruciform walls
Box-section
Steel bridge pier
Ultimate state
