Investigation of partially isolated structure

最近记录的2011年3月11日东北地震的数据对从事高层建筑减震加固工程应用的土木工程师来说是一个震撼。这是因为，尽管分析前的预测具有很好的性能，但记录的数据显示的减振效果很小。本文研究了一种新型结构框架，该框架具有减震装置和叠层橡胶支座。分析研究阐明了叠层橡胶支座的要求规格，它与传统的基础隔震支座有很大不同。部分隔震框架结构装置的实现还需要进一步的研究。

The recent data recorded on the event of Tohoku Earthquake in March 11, 2011 have been recognized as a shock to the society of civil engineers who have worked with application of damping augmentation project for tall buildings. Because the recorded data showed little damping effect in spite of the excellent performance expected from the pre-analytical prediction. This research investigated a new structural frame with damping devices along with laminated rubber bearings. Analytical research clarified the required specification of laminated rubber bearings that are quite different from the conventional base isolation bearings. Further research is necessary for realizing the device for partially isolated frame structure.