Investigation of partially isolated structure

2011年3月11日发生的东北大地震的最新数据，对从事高层建筑减震工程应用的土木工程师来说，是一个巨大的冲击。因为记录的数据显示，尽管从预分析预测预期的优异性能，阻尼效应很小。本研究探讨一种新型结构框架，其结构沿着设置阻尼装置，并设置叠层橡胶垫。分析研究阐明了叠层橡胶支座所需的规格，这与传统的基础隔震支座有很大的不同。为实现部分隔震框架结构的隔震装置，还需进一步研究。

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.