Fundamental study of functionality evaluation of base-isolated buildings under vertical motions

竖向运动下基础隔震建筑功能评价基础研究

• 批准号: 24860010
• 负责人: FURUKAWA Sachi
• 金额: $ 2万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-08-31 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24860010/
• 关键词: 免震; 鉛直動; 機能保持性能; 床振動; 機能保持; 鉛直応答; 常時微動計測

According to results of collecting on-site records, full-scale shaking table tests and analytical simulation of base-isolated buildings, the followings are found to be major conclusions: (1) According to on-site records, the vertical floor acceleration amplification may exceed 6. (2) According to on-site records, major amplification in the vertical direction of base-isolated buildings is due to a superstructure rather than a base isolation layer. (3) The trend of the vertical dynamic response characteristics of base-isolated buildings can be represented by the combinations of the natural frequencies of the base isolation layer, the columns and the slab. (4) The vertical floor response becomes larger for the low-rise buildings when the natural frequencies of the slab and the base isolation layer are close to each other. On the other hand, the vertical floor response becomes larger for the mid-to-high-rise buildings when the natural frequency of the slab is the smallest among three.

根据现场记录、实足振动台试验和基础隔震建筑分析模拟的结果，主要结论如下：（1）根据现场记录，楼层竖向加速度放大可能超过6。（2）根据现场记录，基础隔震建筑竖向加速度放大主要是由上部结构而非基础隔震层造成的。 (3)基础隔震建筑竖向动力响应特性的变化趋势可以通过基础隔震层、柱、板的固有频率组合来表征。 (4) 对于低层建筑，当楼板与基础隔震层的固有频率接近时，楼板竖向响应变大。另一方面，对于中高层建筑，当板的固有频率是三者中最小的时，竖向楼层响应变得更大。

项目成果

46棟の観測記録に基づく免震建物の鉛直床加速度応答特性の把握

基于46座建筑的观测记录了解隔震建筑竖向楼层加速度响应特性

• 发表时间: 2014
• 作者: 古川幸

Contribution of Base Isolation Response of Base-isolated buildings

基础隔震建筑物基础隔震响应的贡献

• 发表时间: 2014
• 作者: Shejuan Xie;Zhenmao Chen;Li Wang;Toshiyuki Takagi and Tetsuya Uchimoto;S. Furukawa and E. Sato
• 通讯作者: S. Furukawa and E. Sato

４６棟の観測記録に基づく免震建物の鉛直床加速度応答特性の把握

基于46座建筑的观测记录了解隔震建筑竖向楼层加速度响应特性

• 作者: M.B.Jungfleisch;T.An;K.Ando;Y.Kajiwara;K.Uchida;V.I.Vasyuchka;A.V.Chumak;A.A.Serga;E.Saitoh;and B.Hillebrands;古川 幸
• 通讯作者: 古川 幸

Comparison of Vertical Dynamic Response Characteristics of Two Base-isolated Buildings based on Full-scale Shaking Table Test

基于全尺寸振动台试验的两座基础隔震建筑竖向动力响应特性比较

• 发表时间: 2013
• 作者: Furukawa;S.;Sasaki;T.;Sato;E.;Okazaki;T. and Ryan;K. L.
• 通讯作者: K. L.