Flood fragility analysis of instream bridges

Touhid Ahamed; Jaeho Shim; Hongki Jo; Jennifer Duan

doi:10.1117/12.2296782

Flood fragility analysis of instream bridges

Touhid Ahamed, Jaeho Shim, Hongki Jo, Jennifer Duan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Flood scour is one of the major causes of bridge failures in the United States. Flood fragility curves can be used as an objective tool to assess the risk of a bridge to exceed some limit-states for a given flood. Despite the method's extensive use in seismic reliability analysis for civil infrastructures, the approach has rarely been utilized in evaluation of scour critical bridges. Flood fragility analysis of a instream bridge structure has been analyzed using first order reliability method. A MATLAB-based code has been developed to perform the analysis combining the first order reliability analysis tool of FERUM (Finite Element Reliability Analysis using MATLAB) and finite element structural analysis code ABAQUS. The developed code passes information back and forth between FERUM and ABAQUS in the iterative process to progress the analysis. Moreover, the code is capable of simulating scour depth, corresponding change in foundation parameter, variable limit-state for given inputs, which are realized by generating new finite element structural model each time FERUM calls ABAQUS. The proposed automated procedure has been demonstrated by deriving fragility curves, due to flood induced scour and stream water pressure, for a real bridge.

Original language	English (US)
Title of host publication	Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018
Editors	Kon-Well Wang, Hoon Sohn, Jerome P. Lynch
Publisher	SPIE
ISBN (Electronic)	9781510616929
DOIs	https://doi.org/10.1117/12.2296782
State	Published - 2018
Event	Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018 - Denver, United States Duration: Mar 5 2018 → Mar 8 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10598
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018
Country/Territory	United States
City	Denver
Period	3/5/18 → 3/8/18

Keywords

FERUM
Fragility curve
first order reliability analysis
flood
scour

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2296782

Cite this

Ahamed, T., Shim, J., Jo, H., & Duan, J. (2018). Flood fragility analysis of instream bridges. In K-W. Wang, H. Sohn, & J. P. Lynch (Eds.), Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018 Article 1059826 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10598). SPIE. https://doi.org/10.1117/12.2296782

Flood fragility analysis of instream bridges. / Ahamed, Touhid; Shim, Jaeho; Jo, Hongki et al.
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018. ed. / Kon-Well Wang; Hoon Sohn; Jerome P. Lynch. SPIE, 2018. 1059826 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10598).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ahamed, T, Shim, J, Jo, H & Duan, J 2018, Flood fragility analysis of instream bridges. in K-W Wang, H Sohn & JP Lynch (eds), Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018., 1059826, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10598, SPIE, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, Denver, United States, 3/5/18. https://doi.org/10.1117/12.2296782

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abstract = "Flood scour is one of the major causes of bridge failures in the United States. Flood fragility curves can be used as an objective tool to assess the risk of a bridge to exceed some limit-states for a given flood. Despite the method's extensive use in seismic reliability analysis for civil infrastructures, the approach has rarely been utilized in evaluation of scour critical bridges. Flood fragility analysis of a instream bridge structure has been analyzed using first order reliability method. A MATLAB-based code has been developed to perform the analysis combining the first order reliability analysis tool of FERUM (Finite Element Reliability Analysis using MATLAB) and finite element structural analysis code ABAQUS. The developed code passes information back and forth between FERUM and ABAQUS in the iterative process to progress the analysis. Moreover, the code is capable of simulating scour depth, corresponding change in foundation parameter, variable limit-state for given inputs, which are realized by generating new finite element structural model each time FERUM calls ABAQUS. The proposed automated procedure has been demonstrated by deriving fragility curves, due to flood induced scour and stream water pressure, for a real bridge.",

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Flood fragility analysis of instream bridges

Abstract

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Keywords

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