立式钢制圆柱储罐的动提离控制
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摘要
针对浮放立式储罐地震响应及提离效应 ,考虑基础与土壤的相互作用 ,研究了减小地震响应、降低提离的控制方法 ,建立了控制体系的力学分析模型 ,并给出了运动分析方程 .对实际应用的系列浮顶罐进行了数值仿真计算 ,探讨了控制体系基频和阻尼比对减震效果的影响 ,附加减震装置刚度的最佳基频段为 0 .5～ 3 .0rad/s ,阻尼比宜取 0 .1～ 0 .
The paper deals with the earthquake response and uplift effect on unanchored stand tank. The interaction between foundation and soil is considered, control study to diminish earthquake response and reduce uplift is made. The mechanical analysis model of control system is established, and movement equations are given. Simulation calculations are made to a series floating\|peak tanks in service. The effects of basic frequency and damp ratio are discussed. The damping effects are good when ω =0.5～3.0 rad/s, ξ =0.1～0.4.
The paper deals with the earthquake response and uplift effect on unanchored stand tank. The interaction between foundation and soil is considered, control study to diminish earthquake response and reduce uplift is made. The mechanical analysis model of control system is established, and movement equations are given. Simulation calculations are made to a series floating\|peak tanks in service. The effects of basic frequency and damp ratio are discussed. The damping effects are good when ω =0.5～3.0 rad/s, ξ =0.1～0.4.
引文
[1] HarounMA ,WajdiAI .Parametricstudyofseismicsoi tankinteraction .Ⅰ :horizontalexcitation[J] .Journalofstructuralengineering ,1992 ,118(3 ) :783～ 797.
[2 ] 孙建刚 .弹性圆柱钢制储液容器橡胶基底隔震分析模型 [J] .大庆石油学院学报 ,1998,2 2 (3 ) :91～ 95
[2 ] 孙建刚 .弹性圆柱钢制储液容器橡胶基底隔震分析模型 [J] .大庆石油学院学报 ,1998,2 2 (3 ) :91～ 95
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