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A platform for research: civil engineering, architecture and urbanism
CALCULATION METHOD OF RAIL-GENERATED STRESS
To provide a method for calculating rail-generated stress capable of accurately calculating rail-generated stress at an arbitrary position by inputting a floating amount of a floating pillow obtained from track inspection data or the like and an unevenness amount of a top surface of a rail.SOLUTION: There is provided a method for calculating rail-generated stress, which calculates the stress generated in a rail. The method includes steps of in a numerical analysis model of a rail track on which the rail is laid, setting the unevenness wavelength of an unevenness generated on the top surface of the rail S2, setting a plurality of continuous numbers of floating sleepers for each amount of unevenness using the numerical analysis model, and performing the analysis S3, determining a relation between the stress value of the continuous number of floating for which the rail-generated stress is the maximum and the amount of flotation of the floating sleepers for each amount of unevenness from the analysis result, and determining stress estimation means for deriving the rail-generated stress from the amount of flotation and the amount of unevenness based on the relation between the stress values of the plurality of unevenness amounts and the amount of flotation S5.SELECTED DRAWING: Figure 1
【課題】軌道検測データなどから得られる浮きまくらぎの浮き量とレールの頭頂面の凹凸量とを入力することで、任意の位置のレール発生応力を精度よく算定することができるレール発生応力の算出方法を提供する。【解決手段】レールに発生する応力を算定するレール発生応力の算出方法である。そして、レールが敷設された軌道の数値解析モデルに、レールの頭頂面に生じる凹凸の凹凸波長を設定するステップＳ２と、数値解析モデルを使って、凹凸量毎に、浮きまくらぎの浮き連続数を複数設定して解析を行うステップＳ３と、解析結果の中から、レール発生応力が最大となる浮き連続数の応力値と浮きまくらぎの浮き量との関係を、凹凸量毎に求めるステップと、複数の凹凸量の応力値と浮き量との関係に基づいて、浮き量及び凹凸量からレール発生応力を導く応力推定手段を求めるステップＳ５とを備えている。【選択図】図１
CALCULATION METHOD OF RAIL-GENERATED STRESS
To provide a method for calculating rail-generated stress capable of accurately calculating rail-generated stress at an arbitrary position by inputting a floating amount of a floating pillow obtained from track inspection data or the like and an unevenness amount of a top surface of a rail.SOLUTION: There is provided a method for calculating rail-generated stress, which calculates the stress generated in a rail. The method includes steps of in a numerical analysis model of a rail track on which the rail is laid, setting the unevenness wavelength of an unevenness generated on the top surface of the rail S2, setting a plurality of continuous numbers of floating sleepers for each amount of unevenness using the numerical analysis model, and performing the analysis S3, determining a relation between the stress value of the continuous number of floating for which the rail-generated stress is the maximum and the amount of flotation of the floating sleepers for each amount of unevenness from the analysis result, and determining stress estimation means for deriving the rail-generated stress from the amount of flotation and the amount of unevenness based on the relation between the stress values of the plurality of unevenness amounts and the amount of flotation S5.SELECTED DRAWING: Figure 1
【課題】軌道検測データなどから得られる浮きまくらぎの浮き量とレールの頭頂面の凹凸量とを入力することで、任意の位置のレール発生応力を精度よく算定することができるレール発生応力の算出方法を提供する。【解決手段】レールに発生する応力を算定するレール発生応力の算出方法である。そして、レールが敷設された軌道の数値解析モデルに、レールの頭頂面に生じる凹凸の凹凸波長を設定するステップＳ２と、数値解析モデルを使って、凹凸量毎に、浮きまくらぎの浮き連続数を複数設定して解析を行うステップＳ３と、解析結果の中から、レール発生応力が最大となる浮き連続数の応力値と浮きまくらぎの浮き量との関係を、凹凸量毎に求めるステップと、複数の凹凸量の応力値と浮き量との関係に基づいて、浮き量及び凹凸量からレール発生応力を導く応力推定手段を求めるステップＳ５とを備えている。【選択図】図１
CALCULATION METHOD OF RAIL-GENERATED STRESS
レール発生応力の算出方法
AIZAWA HIROYUKI (author) / HOSODA MITSURU (author)
2023-12-25
Patent
Electronic Resource
Japanese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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