Damage mechanism ofbuildings subjectedto strongshaking considering non-linear dynamic soil-structure interaction

通过振动台试验和考虑基底滑移的非线性地震反应分析，提出了“基底滑移输入损失”和“响应折减系数”。在桩基情况下，通过2011年东北大地震的现场损毁建筑调查、微震测量和余震观测，研究了非线性动力土-结构相互作用的影响。对于桩基，数值分析和将影响引入设计技术将在今后进行更详细的讨论。

The effects of non-linear dynamic soil-structure interaction of spread foundations were discussed where "Input loss by base-slip" and "Response reduction factor " were proposed through shaking table tests and non-linear seismic response analysis considering base-slip of spread foundation. In case of pile foundations, the effects of non-linear dynamic soil-structure interaction were studied through field investigation of damaged buildings and microtremor measurements and aftershock observation of 2011 Tohoku Earthquake. In case of pile foundations, numerical analysis and introducing the effects into design technique will be discussed in more detail in the future.