Proposal of earthquake resistance evaluation index in high rise building to huge long-period ground motions and of vibration control repair design technique

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420574
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/Materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Sato Daiki 東京工業大学, 科学技術創成研究院, 准教授 (40447561)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 超高層建物 / 長周期地震動 / 制振改修 / 時刻歴応答解析 / 制振ダンパー / 長時間繰返し / 性能低下

Outline of Final Research Achievements

In the present study, it has aimed to evaluate damage and the damage situation when a huge long-period ground motion acts on the high rise building, and to propose the damage reduction measures with a vibration control device.
The accumulation plastic strain magnification and the experimental methodology of the edge of the beam were investigated. The vibration control reinforcement that partially established the oil damper and the steel-made damper in the lower layer part was proposed. A high vibration control performance was confirmed from the response analysis results. An analytical model considering the performance decrease index of the vibration control damper by the repetition for a long time was built. The response considering the performance decrease by the seismic response analysis was evaluated. The response considering the performance decrease by using the response analysis results was evaluated.

Free Research Field

建築構造・材料