摘要
对隔震系统中的地下室柱进行设计时,为保证隔震建筑的安全性和耐久性,对地下室柱建立有限元模型进行应力分析,是相对准确地确定柱内力以优化设计的重要保证。利用有限元软件建立了基础隔震系统中地下室悬臂柱的有限元实体模型,分析结果表明:悬臂柱截面应力在是否考虑P—Δ效应前后有了明显的变化;在考虑结构的P—Δ效应后,截面的正应力和最大主应力都有明显增长,并且截面的部分节点出现较大的拉应力。
In order to ensure the security and durability of the isolation system in the design process,stress analysis of the basement cantilever column of isolation system through the establishment of FEM model is put out,which guarantees the stress of column to optimize the design.The solid model of the basement cantilever column is built up using the finite element software.The result shows that： the stress of the cantilever column varies much when taking into considering P—Δ effects.If the P—Δ effects is taken into account,the normal stress and the principal stress of the section increase obviously,and major tensile stress of several joints appears.
出处
《山东建筑大学学报》
2010年第3期320-323,共4页
Journal of Shandong Jianzhu University
关键词
隔震结构
悬臂柱
P—Δ效应
有限元
响应对比
应力
isolation structure
cantilever column
P—Δ effect
finite element
response contrast
stress
