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A platform for research: civil engineering, architecture and urbanism
SOUNDNESS EVALUATION METHOD FOR BRIDGE PIERS AND VIADUCTS
To provide a soundness evaluation method for bridge piers and viaducts that makes it possible to easily evaluate the soundness with high reliability based on an impact vibration test result.SOLUTION: A soundness evaluation method for bridge piers and viaducts based on results of impact vibration tests includes: a step S2 of identifying the natural frequency and damping constant from the results of the impact vibration tests of an object to be evaluated; a step S3 of extracting data associated with bridge piers and viaducts similar to the object to be evaluated from a database in which the natural frequencies and damping constants of multiple bridge piers and viaducts are stored; a step S4 of creating respective histograms for the natural frequency and damping constant based on the extracted bridge pier and viaduct data; and steps S5, S6 of evaluating the soundness by comparing the natural frequency and damping constant of the object to be evaluated with the results based on the histograms.SELECTED DRAWING: Figure 1
【課題】衝撃振動試験結果に基づいて信頼性の高い健全度の評価を簡単に行うことが可能となる橋脚・高架橋の健全度の評価方法を提供する。【解決手段】衝撃振動試験結果に基づいて行われる橋脚・高架橋の健全度の評価方法である。そして、評価対象体の衝撃振動試験の結果から固有振動数及び減衰定数を同定するステップＳ２と、複数の橋脚・高架橋の固有振動数及び減衰定数が記録されたデータベースの中から評価対象体に類似する橋脚・高架橋のデータを抽出するステップＳ３と、抽出された橋脚・高架橋のデータに基づいて、固有振動数と減衰定数のヒストグラムをそれぞれ作成するステップＳ４と、評価対象体の固有振動数及び減衰定数をヒストグラムに基づいた結果とそれぞれ比較することで健全度を評価するステップＳ５，Ｓ６とを備えている。【選択図】図１
SOUNDNESS EVALUATION METHOD FOR BRIDGE PIERS AND VIADUCTS
To provide a soundness evaluation method for bridge piers and viaducts that makes it possible to easily evaluate the soundness with high reliability based on an impact vibration test result.SOLUTION: A soundness evaluation method for bridge piers and viaducts based on results of impact vibration tests includes: a step S2 of identifying the natural frequency and damping constant from the results of the impact vibration tests of an object to be evaluated; a step S3 of extracting data associated with bridge piers and viaducts similar to the object to be evaluated from a database in which the natural frequencies and damping constants of multiple bridge piers and viaducts are stored; a step S4 of creating respective histograms for the natural frequency and damping constant based on the extracted bridge pier and viaduct data; and steps S5, S6 of evaluating the soundness by comparing the natural frequency and damping constant of the object to be evaluated with the results based on the histograms.SELECTED DRAWING: Figure 1
【課題】衝撃振動試験結果に基づいて信頼性の高い健全度の評価を簡単に行うことが可能となる橋脚・高架橋の健全度の評価方法を提供する。【解決手段】衝撃振動試験結果に基づいて行われる橋脚・高架橋の健全度の評価方法である。そして、評価対象体の衝撃振動試験の結果から固有振動数及び減衰定数を同定するステップＳ２と、複数の橋脚・高架橋の固有振動数及び減衰定数が記録されたデータベースの中から評価対象体に類似する橋脚・高架橋のデータを抽出するステップＳ３と、抽出された橋脚・高架橋のデータに基づいて、固有振動数と減衰定数のヒストグラムをそれぞれ作成するステップＳ４と、評価対象体の固有振動数及び減衰定数をヒストグラムに基づいた結果とそれぞれ比較することで健全度を評価するステップＳ５，Ｓ６とを備えている。【選択図】図１
SOUNDNESS EVALUATION METHOD FOR BRIDGE PIERS AND VIADUCTS
橋脚・高架橋の健全度の評価方法
SANAGAWA TAISUKE (author)
2021-09-16
Patent
Electronic Resource
Japanese
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