Browse > Article
http://dx.doi.org/10.7782/JKSR.2016.19.2.187

Flexural Reliability Assessment of PSC-I Girder Rail Bridge Under Operation  

Kim, Ki Hyun (Korea Railroad Research Institute)
Yeo, Inho (Korea Railroad Research Institute)
Sim, Hyoung-Bo (Incheon National University)
Publication Information
Journal of the Korean Society for Railway / v.19, no.2, 2016 , pp. 187-194 More about this Journal
Abstract
It is necessary to determine reliability indexes of existing railway bridges prior to setting up a proper target reliability index that can be used to introduce a reliability based limit state design method to design practice. Reliability is evaluated for a six PSC-I girder railway bridge, which is one of many representative types of double-track railway bridges. The reliability assessment is carried out for an edge girder subjected to bending moment. In the assessment, the flexural resistance and the fixed-load effect were obtained using existing statistical values from previous research on the introduction of limit state design to road bridge design. On the other hand, the live-load effect was determined using statistical values obtained from field measurement for the Joong-ang corridor, on which heavy freight trains are frequently passing. The reliability assessment is performed by AFOSM(Advanced First Order Second Moment method) for the limit state equation, and a sensitivity analysis for the reliability is performed for each factor of the load and resistance effects.
Keywords
Limit state design method; Reliability analysis; Railway bridge; Field measurement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Korea Rail Network Authority (2013) Railroad Design Standard, KRNA, ISBN 978-89-97477-12-8 93530.
2 Ministry of Land, Infrastructure and Transportation (2012) Road Bridge Design Standard (Limit State Design method), Korea Road & Transportation Association.
3 prEN 1991 (1991) Eurocode 1: Actions on structures-Part2: Traffic loads on bridges, European Committee for Standardization, Brussels.
4 A. Haldar, S. Mahadevan (2000) Probability, Reliability, and Statistical Methods in Engineering Design, John Wiley & Sons New York/Chichester, UK, 2000.
5 Korea Rail Network Authority (2011) Design Report for Joong-ang Corridor, KRNA.
6 B. Ellingwood, T.V. Galambos, J.G. MacGregor, C.A. Cornell (1980) Development of a Probability Based Load Criterion for American National Standard A58, NBS Special Publication 577, Washington, DC: National Bureau of Standards.
7 S.W. Tabsh, A.S. Nowak (1991) Reliability of Highway Girder Bridges, Journal of Structural Engineering, 117(8), pp. 2372-2388.   DOI
8 A.S. Nowak, M.M. Szerszen (2003) Calibration of Design Code for Buildings (ACI 318): Part 1 & Part 2, V.100, No. 3.
9 E.S. Hwang, I. Paik (2007) Basic Theory of Reliability and Reliability-Based Design Code, Korea Bridge Design & Engineering Research Center.
10 D.K. Shin, C.Y. Kim, I. Paik (2006) Reliability Analysis of Composite Girder Designed by LRFD Method for Positive Flexure, Journal of the Korean Society of Civil engineers, 26(3A), pp. 539-546.
11 I.Paik, H.J. Sang (2011) Reliability Analysis of Concrete Road Bridge Designed with Different Resistance Factor Format, Journal of the Korean Society of Road Engineering, 13(2), pp. 147-157.