沉箱码头动力响应分析及结构抗震计算  

Dynamic Response Analysis and Structural Anti-seismic Calculation of Caisson Quay Wall

作　　者：王松 喻泽红[2] 张兴华[2] 戴必辉[2] 

机构地区：[1]营口港务集团有限公司,辽宁营口115007 [2]长沙理工大学水利(河海)工程学院

出　　处：《水电能源科学》2010年第9期82-85,共4页Water Resources and Power

摘　　要：本文针对神户沉箱码头利用有限元软件ANSYS构建了三维计算模型,分析了沉箱码头的结构自振特性并计算了阻尼值。在elecentro波、kobe波、emc波三种地震波激励条件下,采用现行规范拟静力分析法和瞬态动力时程分析法计算了沉箱码头的应力应变情况、沉箱后壁加速度分布系数、地震惯性力标准值、地震动水压力标准值并做了结构抗震验算,同时也对比分析了两种方法计算结果的差异,可为现行规范的修改提供参考依据。Finite element software ANSYS is used to establish three-dimensional calculation model of Kobe caisson quay wall.The natural vibration characteristics are analyzed and the damping value is calculated.Under the conditions of three different seismic waves,that involves elecentro wave,kobe wave and emc wave,the standard quasi-static analysis and transient dynamic time-histories analysis methods are applied to calculate stress and strain of caisson quay wall,acceleration distribution coefficient of the back wall,standard values of seismic inertia force and hydrodynamic pressure.The structural anti-seismic is also checked.The results with two methods are contrastive analysis,which provides reference for modifying the current technical specifications.

关 键 词：沉箱码头 动力响应分析 结构自振特性 抗震计算 Analysis 现行规范 动力时程分析法 速度分布系数 三维计算模型 地震动水压力 标准值 有限元软件 地震惯性力 应力应变 力分析法 抗震验算 计算结果 激励条件 对比分析 参考依据 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程] TV7[水利工程—水利水电工程]