A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND VIBRATION PREDICTION METHOD
PROBLEM TO BE SOLVED: To provide a ground vibration prediction method capable of calculating a ground vibration at any location around a viaduct on which a train travels by using a ground property and vibration acceleration at a pier base section.SOLUTION: A ground vibration at a target point is predicted through: a first process of performing ground structural analysis (modeling) on the basis of a result of ground investigation performed previously; a second process of performing pier modeling on the basis of a result of investigation of a form/shape of a pier and foundation to be a target; a third process of calculating an acceleration waveform propagating from each pier on the basis of acceleration of the pier by calculation using a ground model obtained in the first process and a pier model obtained in the second process; a fourth process of acquiring a sum of power from respective acceleration waveforms obtained in the three processes; and a fifth process of calculating a vibration level at the target point by using the sum of power obtained in the fourth process.SELECTED DRAWING: Figure 3
【課題】列車が走行する高架橋周辺の任意の地点の地盤振動を、地盤物性値、橋脚基部の振動加速度より求めることができる地盤振動予測方法を提供する。【解決手段】事前に行なった地盤調査の結果に基づいて地盤の構造解析（モデル化）を行う第１工程と、対象となる橋脚および基礎の形式、形状の調査の結果に基づいて橋脚のモデル化を行う第２工程と、橋脚の加速度に基づいて、前記第１工程で得られた地盤モデルおよび前記第２工程で得られた橋脚モデルを用いた計算により、各橋脚から伝播する加速度波形を算出する第３工程と、前記第３工程で得られたそれぞれの加速度波形からパワーの和を求める第４工程と、前記第４工程で得られたパワーの和を用いて着目点の振動レベルを算出する第５工程と、を経て着目点の地盤振動を予測するようにした。【選択図】図３
GROUND VIBRATION PREDICTION METHOD
PROBLEM TO BE SOLVED: To provide a ground vibration prediction method capable of calculating a ground vibration at any location around a viaduct on which a train travels by using a ground property and vibration acceleration at a pier base section.SOLUTION: A ground vibration at a target point is predicted through: a first process of performing ground structural analysis (modeling) on the basis of a result of ground investigation performed previously; a second process of performing pier modeling on the basis of a result of investigation of a form/shape of a pier and foundation to be a target; a third process of calculating an acceleration waveform propagating from each pier on the basis of acceleration of the pier by calculation using a ground model obtained in the first process and a pier model obtained in the second process; a fourth process of acquiring a sum of power from respective acceleration waveforms obtained in the three processes; and a fifth process of calculating a vibration level at the target point by using the sum of power obtained in the fourth process.SELECTED DRAWING: Figure 3
【課題】列車が走行する高架橋周辺の任意の地点の地盤振動を、地盤物性値、橋脚基部の振動加速度より求めることができる地盤振動予測方法を提供する。【解決手段】事前に行なった地盤調査の結果に基づいて地盤の構造解析（モデル化）を行う第１工程と、対象となる橋脚および基礎の形式、形状の調査の結果に基づいて橋脚のモデル化を行う第２工程と、橋脚の加速度に基づいて、前記第１工程で得られた地盤モデルおよび前記第２工程で得られた橋脚モデルを用いた計算により、各橋脚から伝播する加速度波形を算出する第３工程と、前記第３工程で得られたそれぞれの加速度波形からパワーの和を求める第４工程と、前記第４工程で得られたパワーの和を用いて着目点の振動レベルを算出する第５工程と、を経て着目点の地盤振動を予測するようにした。【選択図】図３
GROUND VIBRATION PREDICTION METHOD
地盤振動予測方法
KANEDA ATSUSHI (author) / TAKASAKI HIDEAKI (author) / IKEMOTO HIROFUMI (author) / ISHII TAKESHI (author) / SAITO KUNIO (author)
2017-03-09
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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