Browse > Article
http://dx.doi.org/10.7734/COSEIK.2022.35.3.149

System-Level Seismic Fragility Evaluation of Bridge Considering Aging Effects  

Kong, Sina (Department of Civil Engineering, Kangwon National University)
Moon, Jiho (Department of Civil Engineering, Kangwon National University)
Song, Jong-Keol (Department of Civil Engineering, Kangwon National University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.35, no.3, 2022 , pp. 149-158 More about this Journal
Abstract
As a bridge ages, its mechanical properties and structural performance deteriorate, degrading its seismic performance during a strong earthquake. In this study, the aging of piers and bridge bearings was quantified in several stages and reflected in the analysis model, enabling the evaluation of the member-level seismic fragility of these bearings. Moreover, by assuming that the failure mechanism of a bridge system is a series system, a method for evaluating the system-level seismic fragility based on the member-level seismic fragility analysis result is formulated and proposed. For piers with rubber and lead-rubber bearings (members vulnerable to aging effects), five quantitative degrees of aging (0, 5, 10, 25, and 40%) are assumed to evaluate the member-level seismic fragility. Then, based on the result, the system-level seismic fragility evaluation was implemented. The pier rather than the bridge bearing is observed to have a dominant effect on the system-level seismic fragility. This means that the seismic fragility of more vulnerable structural members has a dominant influence on the seismic fragility of the entire bridge system.
Keywords
system-level seismic fragility analysis; aging degree; damage state; bridge system;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Council, B.S.S (1997) NEHRP Guidelines and Commentary for the Seismic Rehabilitation of Buildings: FEMA 273-274. BSSC: Washington, D.C.
2 Moschonas, I.F., Kappos, A.J., Panetsos, P. Papadopoulos, V., Makarios, T., Thanopoulos, P. (2009) Seismic Fragility Curves for Greek Bridges: Methodology and Case Studies, Bull Earthq. Eng, 7, pp.439~468.   DOI
3 Shin S.B., Hong J.Y., Moon J.H., Song, J.K. (2020) Seismic Response Evaluation of Composite Steel-Concrete Box Girder Bridge according to Aging Effect of Piers, J. Comput. Struct. Eng. Inst. Korea, 33(5), pp.319~329.   DOI
4 Sun, C.H., Kim, I.H. (2021) Shear Characteristic Changes in Blended Rubber of Elastomeric Bearings due to Aging, J. Korean Soc. Hazard Mitig., 21(6), pp.247~255.   DOI
5 Constantinou, M.C., Tsopelas, P., Kasakanati, A., Wolff, E.D. (1999) Property Modification Factors for Seismic Isolation Bearings, Technical Report MCEER-99-0012, Multidisciplinary Center for Earthquake Engineering Research, University at Buffalo, State University of New York, Buffalo. NY.
6 American Association of State Highway and Transportation Officials (AASHTO) (1999) Guide Specifications for Seismic Isolation Design, Washington, D.C., p.47.
7 Mazzoni, S., McKenna. F., Scott, M.H., Fenves. G.L. (2007) OpenSees: Open System of Earthquake Engineering Simulation, Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA.
8 Cho, S.H., Chung, L., Roh, Y.S. (2005) Estimation of Rebar Corrosion Rate in Reinforced Concrete Structure, Corros. Rev., 23(4-6), pp.329~353.   DOI
9 Cornell, C.A., Jalayer, F., Hamburger, R.O., Foutch, D.A. (2002) Probabilistic Basis for 2000 SAC Federal Emergency Management Agency Steel Moment Frame Guidelines, J. Struct. Eng., 128(4), pp.526~533.   DOI
10 Jeong, Y.H., Song, J.K., Shin, S.B. (2019) Evaluation of Seismic Response Considering the Ageing Effect of Rubber and Lead-Rubber Bearings Applied to PSC Box Bridge, EESK J. Earthq. Eng., 23, pp.311~319.
11 Nielson, B.G., DesRoches, R. (2006) Seismic Fragility Methodology for Highway Bridges using a Component Level Approach, Earthq. Eng. & Struct. Dyn., 36(6), pp.823~839.   DOI
12 Nowak, A.S., Collins, K.R. (2012) Reliability of Structures, CRC Press, p.407.
13 Shin, S.B., Kong, S., Moon, J.H., Song, J.K. (2021). Seismic Fragility Evaluation of Bridges Considering Rebar Corrosion, J. Comput. Struct. Eng. Inst. Korea, 34(4), pp.231~241.   DOI
14 Shinozuka, M., Feng, M.Q, Lee, J., Naganuma, T. (2000) Statistical Analysis of Fragility Curves, J. Eng. Mech., 126(12), pp.1224~1231.   DOI