【摘要】 基于对分层土条件下的土-群桩基础动力阻抗函数的求解,采用常数阻抗法结合子结构方法对体育馆看台进行了考虑土-桩-结构相互作用的地震响应分析.结果表明:由于地震波频谱特性的差别,体育馆看台结构在不同地震波作用下的最大位移、最大加速度等响应有所差别,EL-Centro波与人工波接近,TAR_TARZANA波作用下响应略小;三层看台的地震响应总体上较一层看台响应有明显的放大.更多还原

【Abstract】 Based on the solution to the dynamic impedance functions of pile-soil foundations under the conditions of layered soil,it studies the earthquake response of stadium stands with pile-soil structure interaction by combining the constant impedance method with the substructure method via finite element time-history analysis.The finite element calculation results show that the maximum displacement and maximum acceleration response of the stadium stands under the action of different seismic waves are different due to the differences in the frequency spectrum characteristics of the seismic waves.The maximum displacement and maximum acceleration response of the stadium stands under the action of EL-Centro wave and artificial wave are close;the response under the action of TAR_TARZANA wave is slightly smaller,compared with the results of EL-Centro wave and artificial wave.Moreover,under the action of the three seismic waves mentioned above,the seismic response of the upper stand is obviously larger than that of the lower stand.更多还原