【摘要】 为简化现有地基动力阻抗分析和计算方法,采用埋入式基础的简化计算模型,推导了有利于工程推广应用的阻抗函数表达式,并借助Matlab软件对考虑土-结构动力相互作用时地基阻抗的振动特性进行了详细分析。研究表明:基础埋深比及土层的剪切波速、泊松比等参数对地基水平、摇摆及水平-摇摆耦合振动阻抗均有一定影响,且土层参数越小,埋深比越大,阻抗函数的变化就越显著。更多还原

【Abstract】 In order to simplify the present foundation dynamic impedance analysis and calculation methods,a simplified calculation model is used to deduce the impedance function expressions in this paper.With the help of Matlab software,the vibration characteristics of the foundation impedance are analyzed in detail considering soil-structural dynamic interaction.Results show that such parameters as the depth of foundation,the soil shear wave velocity,and Poisson’s ratio all have some effects on the impedance of rocking,horizontal and coupled horizontal-rocking vibrations,with the samller parameters of the soil,the bigger deepth of foundation and then the more striking changes of the impedence function.更多还原