【摘要】 本文采用弹性半空间-集总参数法分析了5m×5m地震模拟振动台基础的动力反应,并且对集总参数的确定方法进行了较系统的研究。在承受动力的基础设计中,考虑基础-土的相互作用时尽量增大基础振动的辐射阻尼,可有效地减小基础的振动,避免无谓地增加基础质量。振动测试表明,本文的设计和分析方法是可靠的。更多还原

【Abstract】 The dynamic response of the foundation of a 5m × 5m vibrating table for simulating earthquake motion was analyzed by the method of elastic half space-lumped parameters while the method of determining lumped parameters was studied systematically at the same time. It was found that in the design of foundation under dynamic loading, the vibration of foundation could be decreased effectively by increasing the radiation damping of the vibration of foundation and it seemed that we can avoid to increase the mass of foundation in order to decrease the vibration of foundation. Vibration test showed that the present method of design and analysis can be considered to be reliable.更多还原