Reliability analysis of bridge failure due to floods
Journal
Life Cycle of Structural Systems Design Assessment Maintenance and Management Proceedings of the 4th International Symposium on Life Cycle Civil Engineering Ialcce 2014
Series/Report No.
Life Cycle of Structural Systems Design Assessment Maintenance and Management Proceedings of the 4th International Symposium on Life Cycle Civil Engineering Ialcce 2014
Part Of
Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
Start Page
1629
End Page
1635
ISBN (of the container)
9780429227196
DOI (of the container)
https://doi.org/10.1201/b17618
ISBN
[9781138001206]
Date Issued
2015-01-01
Author(s)
Abstract
Bridge Safety evaluation involves many uncertainties, such as the hydrodynamic drag force (demand) and the structural strength (capacity). Reliability analysis is necessary to provide a more precise safety index. Many factors have impact on the flood-resistant reliability of a bridge, such as the presence of a dam in the upstream direction and having protective facilities on the river bank or bed. Among all of the potential influencing factors, the reliability of the bridge itself plays a key role. Thus, this study aims to analyze the system reliability of a selected bridge that includes five limit states and that has random variables for the water surface elevation, water velocity, local scour depth, soil property and wind load. Monte Carlo Simulation (MCS) using a response surface built by a Least Square Support Vector Machine (LS-SVM) is proposed to enhance the efficiency. The accuracy and variation of our solutions were confirmed by direct MCS to ensure the applicability of the proposed approach.
Subjects
Bridges
Drag
Floods
Intelligent systems
Life cycle
Monte Carlo methods
Reliability analysis
Rivers
Safety engineering
Scour
Support vector machines
SDGs
Publisher
CRC Press
Type
conference paper