【摘要】 根据基础振动弹性半空间理论,推演明置基础竖向振动复合集总参数模型。通过采用不同尺寸的块体模型基础,在明置和埋置情况下施加初速度,使基础发生自由振动,将实验结果与采用基础竖向振动复合集总参数模型的计算结果进行比较。研究结果表明:实验结果与计算结果相吻合。利用该模型可以计算均质半空间上块体基础在竖向扰力作用下任意频率、任意形状(不包括环型)的明置和埋置基础的动力响应。更多还原

【Abstract】 A new vertical composite lumped parameter model(CLPM) of surface foundation was established based on the theory of foundation oscillation on a elastic half-space.Free vibration of differently shaped lumped foundations perturbed by the initial velocity was achieved in case of surface and embedment.The results of the experiment and the theory of CLPM were compared.The results show that they are in accordance with each other.CLPM can be used to compute dynamic response of arbitrarily shaped surface and embedment lumped foundations harmonically vertical oscillating on a homogeneous half-space.更多还原