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地盤及び構造物の地震時応答特性抽出のための水平アレー型微動観測システムの開発

提取地面和结构地震响应特征的水平阵式微震观测系统研制

基本信息

批准号：
05650454
负责人：
神山眞
金额：
$ 1.09万
依托单位：
Tohoku Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至无数据
项目状态：
已结题

项目摘要

地盤及び構造物の地震時応答特性抽出のためのアレー型微動観測システムを開発し、その有効性を確認するのが本研究の目的であるが、この目的に沿い以下の研究を実施した。1 アレー型微動観測を行なう上で問題となるケーブル展開の煩雑さを解消する無線伝送装置を試作した。この無線伝送装置は微動計からのアナログデータをAD変換し、モデム、無線機を経由させた後、微弱電波を搬送する送信機とこの逆のプロセスを経てノート型パソコンをコンソールとした記録装置にデジタルデータを記録させる受信機から構成されている。2 試作した無線伝送システムの信頼性を確認するため有線方式と無線方式の同時観測を実施した。この同時観測は無線装置における微弱電波の伝送性能を調査するため種々の障害物を設置して試行した。その結果、障害物のない水平距離では300メートル程度まで有効であることがわかった。また、4階建の建物内の鉛直アレーでもかなり正確にデータ伝送が行なわれることを確認した。3 本無線システムによる微動アレー観測結果と地震観測を行なっている建物の地震応答特性を比較した。その結果、微動による周波数応答関数は地震動の周波数応答関数と良く一致することが知れた。ただし、地震動の周波数応答関数には固有周期の増加が認められた。4 ローカルサイト効果の抽出を対象として地震動と微動における表層地盤の影響の度合いを検討した。特に、地震動では半経験的モデルに基づき強震記録の統計解析を行ない、表層地盤の最大地動に対する影響を定量的に明らかにし、それらの影響が微動の周波数特性と一定の関係を有することを確認した。

The earthquake response characteristics of the earth and the earth are extracted from the earthquake response characteristics of the earth and the earth creature. the purpose of this study is to make sure that the purpose of this study is related to the following research objectives. The main contents of this paper are as follows: (1) the remote micro-mobile communication system is used to solve the problem. The wireless delivery device is installed. The wireless transmission device is connected to the microphone, the radio, the radio, the AD, the radio, the wireless, the radio, the receiver, the receiver. 2 make sure that the wired mode is connected and the wired mode is not available at the same time. At the same time, check the performance of wireless devices to improve the performance of weak airwaves, and set up a variety of barrier devices. The result of the test, the horizontal distance of the barrier and the level of the barrier is not as high as 300%. In the building, please make sure that it is correct to send it to the bank and make sure that it is confirmed. 3. The characteristics of the earthquake response of buildings are compared in terms of the characteristics of the earthquake response. The results of the test, the number of weekly waves of micro-motion, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of micro-motion, the number of weekly waves of micro-motion, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number of weekly waves of earthquake activity, the number The number of cycles of earthquake activity, the number of cycles, the number of natural cycles, plus the number of cycles. 4. The results show that the information on the earthquake micro-motion table is in line with that of the earthquake. Statistical analysis of earthquake records on the basis of statistical analysis of earthquake records on the basis of earthquake activity and earthquake activity statistics and analysis of strong earthquake records on the basis of statistics and analysis on the statistics and analysis of strong earthquake records, the quantitative indication of the characteristics of the maximum ground motion data on the ground and on the ground, which indicates that the characteristics of the cycle number of micro-motion signals must be confirmed.