Open AccessStudy on maintenance time based on deterioration prediction model of main girder
Author(s) -
Xiong Wu,
Miaomiao Fang,
Wei Saidong,
Jiaxin Liu,
Fan Sun
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/825/1/012021
Subject(s) - creep , girder , carbonation , cracking , shrinkage , bridge (graph theory) , structural engineering , computer science , civil engineering , engineering , environmental science , materials science , machine learning , medicine , chemical engineering , composite material
With the increasing number of bridges in Shanxi Province, the difficulty and complexity of bridge maintenance and management tasks have increased significantly. In this paper, based on the existing prediction model, combined with the characteristics of local heavy traffic and large temperature difference environment, the prediction model of concrete carbonation, girder cracking, prestress loss and concrete shrinkage and creep is established. According to the linear law of deterioration curve, the best maintenance time of girder suitable for local characteristics is determined, which can provide guidance for later maintenance management of bridge.