Sensitivity analysis of structures and environmental parameter for the speed limits of the car running on the corroded steel girder bridge over time
Tác giả: Trong-Ha Nguyen, Van-Long Phan, Xuan-Hieu Nguyen, Van-Mao Nguyen
Materials Today: Proceedings
Quyển: Vol 62 Trang: 3015-3021
Năm xuất bản: 1/2022
Tóm tắt
The speed limit is an important parameter in reducing traffic accidents and advancing traffic works life. The steel girder bridge is a structure widely used in road and rail traffic works. However, the steel girder bridge service life is highly dependent on loads, speed limit, and environmental parameters. This paper presents the sensitivity analysis of structural and environmental parameters for the speed limit of the car running on the corroded steel girder bridges over time. To achieve research objectives: An analytical model based on resonance theory has been built to determine the speed limits. The global sensitivity analysis method based on Sobol’s sensitivity indices with Monte-Carlo simulation was used to evaluate the effect of the parameters. Corrosion model and form corrosion of corroded steel girder bridge were used in the previous proposal. Finally, the effects of the structural and environmental parameters on the speed limits of the corroded steel girder bridge about 20-years, 30-years, 50-years, and 100- years has been presented.
Từ khóa
Sobol’s indicesSpeed limitsCorroded steel girderSensitivity analysisMonte-Carlo simulation
