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観測された強震動に基づく中間層・多段免震建物の耐震安全性の検証に関する研究

基于实测强地震动验证中多层隔震建筑抗震安全性研究

基本信息

批准号：
20K04803
负责人：
池田雄一
金额：
$ 2.75万
依托单位：
Kochi National College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2020
资助国家：
日本
起止时间：
2020-04-01 至 2024-03-31
项目状态：
已结题

项目摘要

2011年東北地方太平洋沖地震及び2016年熊本地震以後、設計を上回る想定外の過大地震入力に対処するための解決方法として、中間階に免震層を設けた中間層免震建物と、次世代型の複数の免震層を有する多段免震建物が免震構造設計者の注目を集めている。基礎免震建物では、免震層の過大な変位応答の抑制対策や免震部材に生じる引き抜きや浮き上がりへの抑制対策は行われているものの、免震層が中間階に設置される中間層免震建物や免震層が複数（本研究では２つ）ある多段免震建物の免震層の最大変位応答量やアイソレータの引き抜き、引張面圧に関する研究は少ない現状にある。そこで国内外の主要な被害地震において実観測された強震動を用いた中間層免震建物及び多段免震建物の耐震性の検証を行うことが本研究の目的となっている。初年度は、高層基礎免震建物のアイソレータの引き抜きに関する安全性の確認を行い、アイソレータの引き抜きが大きくなる強震動を把握した。研究2年目は、基礎免震高層建物において、アイソレータに大きな引き抜きを生じさせ、且つ、免震層変位応答量が大きな強震動を抽出した。また、免震建物の振動模型による振動実験を行って、中間層免震建物の振動模型による地震時の地震応答性状を把握した。研究3年目は、免震建物の免震層変位応答量が大きくなることを防止するために、設計者・研究者が開発した各種ダンパーを付加した地震応答解析を行って、免震層変位応答量を確認した。2023年度は、これら強震動を、中間層免震建物及び多段免震建物に入力し、免震層の免震部材に大きな引張を生じさせる強震動の入力地震動特性と中間層免震建物及び多段免震建物の地震応答性状を把握し、強震動が中間層免震建物及び多段免震建物の免震層変位応答量やアイソレータの引張面圧に及ぼす影響について明示する。

After the 2011 North Pacific earthquake and the 2016 Kumamoto earthquake, the designer wants to determine how to solve the earthquake response method for large earthquakes, medium earthquake-free buildings, and next-generation complex earthquake-proof buildings with multi-segment earthquake-proof buildings. Basic shock-free buildings, shock-proof buildings, earthquake-proof buildings, multi-segment shock-proof buildings, multi-segment earthquake-proof buildings, multi-segment shock-proof buildings, multi-segment earthquake-proof buildings, multi-segment shock-proof buildings, multi-segment earthquake-proof buildings, multi-segment shock-proof buildings, multi- In this paper, we introduce the face-to-face research and study. The purpose of this study is to investigate the earthquake resistance of earthquake-free buildings and multi-segment earthquake-proof buildings in the middle of the earthquake-free buildings and multi-segment earthquake-proof buildings. At the beginning of the year, high-level earthquake-free buildings are required to ensure the safety and safety of earthquake-free buildings in the first year. The purpose of this study is to study the results of the study for 2 years, such as earthquake-free high-rise buildings, buildings and buildings. The vibration model of earthquake-proof and earthquake-proof buildings, the vibration model of earthquake-free buildings, and the vibration model of earthquake-free buildings, the vibration model of earthquake-proof and earthquake-proof building vibration models, the vibration models of earthquake-proof and earthquake-proof buildings, the vibration models of earthquake-proof and earthquake-proof buildings, and the vibration models of earthquake-proof and earthquake-proof buildings. In the study of earthquake-proof buildings for 3 years, earthquake-proof buildings, buildings, buildings In 2023, the input force of strong earthquake, medium and multi-section earthquake-proof buildings, earthquake-free materials of earthquake-proof buildings and multi-segment earthquake-proof buildings in 2023 are introduced into the earthquake dynamic characteristics of strong earthquake load, earthquake-resistant buildings and multi-segment earthquake-proof buildings. Earthquake-free buildings and multi-segment earthquake-proof buildings in strong earthquake motions. The position response of shock-proof buildings and multi-segment earthquake-proof buildings is very clear.