A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR INSPECTING STRUCTURAL PERFORMANCE OF RAILROAD BRIDGE
PROBLEM TO BE SOLVED: To provide a method for inspecting the structural performance of a railroad bridge, the method allowing a desirable evaluation and inspection of the structural performance of a bridge, using observation data of the acceleration response of the bridge when a train is running.SOLUTION: A theoretical analysis model of a dynamic response of a railroad bridge when a train is running is formulated on the assumption that a train is a moving load row and a bridge is a simple beam. Further, the acceleration of the bridge when a train is running is measured, and an unknown parameter of the theoretical analysis model is determined by a vibration characteristic determination method on the assumption that the acceleration remaining waveform of the bridge after a train has passed is a free vibration waveform, and an unknown parameter is estimated from the acceleration data by a reverse analysis method.SELECTED DRAWING: Figure 9
【課題】列車走行時の橋梁の加速度応答の観測データを用いて、橋梁の構造性能を好適に調査、評価することを可能にする鉄道橋の構造性能調査方法を提供する。【解決手段】列車を移動荷重列とし、橋梁を単純梁として列車走行時の鉄道橋の動的応答の理論解析モデルを定式化し、且つ、列車走行時の橋梁の加速度を測定し、列車通過後の橋梁の加速度残存波形を自由振動波形とみなして振動特性同定法で理論解析モデルの未知のパラメータを同定するとともに、加速度データから未知のパラメータを逆解析法によって推計するようにした。【選択図】図９
METHOD FOR INSPECTING STRUCTURAL PERFORMANCE OF RAILROAD BRIDGE
PROBLEM TO BE SOLVED: To provide a method for inspecting the structural performance of a railroad bridge, the method allowing a desirable evaluation and inspection of the structural performance of a bridge, using observation data of the acceleration response of the bridge when a train is running.SOLUTION: A theoretical analysis model of a dynamic response of a railroad bridge when a train is running is formulated on the assumption that a train is a moving load row and a bridge is a simple beam. Further, the acceleration of the bridge when a train is running is measured, and an unknown parameter of the theoretical analysis model is determined by a vibration characteristic determination method on the assumption that the acceleration remaining waveform of the bridge after a train has passed is a free vibration waveform, and an unknown parameter is estimated from the acceleration data by a reverse analysis method.SELECTED DRAWING: Figure 9
【課題】列車走行時の橋梁の加速度応答の観測データを用いて、橋梁の構造性能を好適に調査、評価することを可能にする鉄道橋の構造性能調査方法を提供する。【解決手段】列車を移動荷重列とし、橋梁を単純梁として列車走行時の鉄道橋の動的応答の理論解析モデルを定式化し、且つ、列車走行時の橋梁の加速度を測定し、列車通過後の橋梁の加速度残存波形を自由振動波形とみなして振動特性同定法で理論解析モデルの未知のパラメータを同定するとともに、加速度データから未知のパラメータを逆解析法によって推計するようにした。【選択図】図９
METHOD FOR INSPECTING STRUCTURAL PERFORMANCE OF RAILROAD BRIDGE
鉄道橋の構造性能調査方法
MATSUOKA KOTA (author)
2018-03-01
Patent
Electronic Resource
Japanese
| Online Contents | 1996
| British Library Online Contents | 1996