Open AccessResearch on end location of 32m box girder in high-speed railway
Author(s) -
Xiao-Rui Du
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/676/1/012101
Subject(s) - camber (aerodynamics) , track (disk drive) , box girder , creep , structural engineering , girder , wavelet , filter (signal processing) , line (geometry) , computer science , railway line , engineering , mathematics , mechanical engineering , artificial intelligence , materials science , computer vision , geometry , civil engineering , composite material
The creep camber of 32m high-speed railway box girder causes periodic track longitudinal level irregularity, so it is necessary to strictly and accurately control the line change caused by creep to ensure the operation safety. The traditional analysis is mainly done by manual work. Based on the longitudinal level data of dynamic track inspection, this paper uses wavelet decomposition and moving-average filter to study the end location of box girder. the longitudinal level at the girder’s end can be extracted and the line state can be analyzed automatically. The results show that: compared with other time-frequency analysis methods, the proposed method can accurately locate the end of the box girder, and has good applicability.