Browse > Article
http://dx.doi.org/10.5762/KAIS.2016.17.5.325

Flood fragility analysis of bridge piers in consideration of debris impacts  

Kim, Hyunjun (School of Urban and Environmental Engineering, UNIST)
Sim, Sung-Han (School of Urban and Environmental Engineering, UNIST)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.5, 2016 , pp. 325-331 More about this Journal
Abstract
This research developed a flood fragility curve of bridges considering the debris impacts. Damage and failures of civil infrastructure due to natural disasters can cause casualties as well as social and economic losses. Fragility analysis is an effective tool to help better understand the vulnerability of a structure to possible extreme events, such as earthquakes and floods. In particular, flood-induced failures of bridges are relatively common in Korea, because of the mountainous regions and summer concentrated rainfall. The main failure reasons during floods are reported to be debris impact and scour; however, research regarding debris impacts is considered challenging due to various uncertainties that affect the failure probability. This study introduces a fragility analysis methodology for evaluating the structural vulnerability due to debris impacts during floods. The proposed method describes how the essential components in fragility analysis are considered, including limit-state function, intensity measure of the debris impact, and finite element model. A numerical example of the proposed fragility analysis is presented using a bridge pier system under a debris impact.
Keywords
Bridge; Debris Impact; Fragility Analysis; Pier;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 D. Mestrovic, D. Cizmar, L. Miculinic, "Reliability of concrete columns under vehicle impact," In Tenth International Conference on Structures Under Shock and Impact, pp. 157-165, May, 2008. DOI: http://dx.doi.org/10.2495/SU080161   DOI
2 T. Jankowiak, T. Lodygowski, "Identification of parameters of concrete damage plasticity constitutive model," Foundations of civil and environmental engineering, 6(1), pp. 53-69, June, 2005.
3 Y.-J. Lee, D. S. Moon, "A new methodology of the development of seismic fragility curves," Smart Structures and Systems, 14(5), pp. 847-867, November, 2014.   DOI
4 D. H. Lee, H. G. Hong, Y. S. Chung, "Seismic Performance based Fragility Analysis of Bridge Structure in terms of Soil Conditions," Korea Concrete Institute, pp. 73-76, May, 2008.
5 K. S. Kwak, J. H. Park, M. K. Chung, H. S. Woo, "Bridge Scour Prioritization and Management System (1)-System Development-," Korean Society of Civil Engineers, 26(2), pp. 187-195, March, 2006.
6 J. M. Jeon, J. K. Shin, J. Y. Shim, D. H. Lee, "Seismic Fragility Analysis of Reinforced Concrete Bridge Piers According to Damage State," Journal of the Korean Society of Civil Engineers, pp. 1695-1705, December, 2014.
7 K. Wardhana, F. C. Hadipriono, "Analysis of Recent Bridge Failures in the United States," Journal of Performance of Constructed Facilities, 17(3), pp. 144-150, August, 2003.   DOI
8 U. G. Yeo, J. G. Gang, "Field Investigation of Bridge Scours in Small and Medium Streams (1)," Journal of Korea Water Resources Association, 32(1), pp. 41-47, February, 1999.
9 G. G. Prasad, S. Banerjee, "The Impact of Flood-Induced Scour on Seismic Fragility Characteristics of Bridges," Journal of Earthquake Engineering, 17(6), pp. 803-828, January, 2013. DOI: http://dx.doi.org/10.1080/13632469.2013.771593   DOI
10 Y.-J. Lee, J. Song, "Finite-element-based system reliability analysis of fatigue-induced sequential failures," Reliability Engineering & System Safety, 108, pp. 131-141, December, 2012.   DOI
11 J. Lee, Y.-J. Lee, H. Kim, S.-H. Sim, J. M. Kim, "A new methodology development for flood fragility curve derivation considering structural deterioration for bridges," Smart Structures and Systems, 17(1), pp. 149-165, December, 2015.   DOI
12 A. M. Hasofer, N. C. Lind, "Exact and invariant second-moment code format," Journal of the Engineering Mechanics division, 100(1), pp. 111-121, 1974.