Browse > Article
http://dx.doi.org/10.7735/ksmte.2016.25.6.471

Lightweight Design of a Modular Bridge for Railway Infrastructure Systems  

Im, Jae Moon (Graduate school of Department of Mechanical Engineering, Hanbat National University)
Shin, Kwang Bok (Department of Mechanical Engineering, Hanbat National University)
Park, Jae Hyun (Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.25, no.6, 2016 , pp. 471-478 More about this Journal
Abstract
This paper describes a method to design a lightweight modular bridge for a railway infrastructure system. A lightweight design was achieved using the material selection method. Aluminum extrusions and honeycomb sandwich composites were selected as the best materials to reduce the weight of the upper structure of a conventional modular bridge made of carbon-steel material. The structural integrity of the lightweight modular bridge was evaluated under vertical and wind loads. The twisting and bending natural frequencies were also evaluated to investigate its dynamic characteristics. The results showed that the structural integrity and natural frequencies of the lightweight modular bridge, made of aluminum extrusion and sandwich composites, satisfied the design requirements. Moreover, it was found that the weight of the conventional modular bridge made of carbon steel could be reduced by a maximum of 47% using lightweight materials.
Keywords
Modular bridge; Lightweight design; Structure integrity; Railway infrastructure system;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Kang S. G., Shin, K. B., Park, k. J., Lee, E. K., Yoon, I. R., 2014, A Study on the Weight-Reduction Design of High-Speed Maglev Carbody made of Aluminum Extrusion and Sandwich Composite Roof Trans. Korean Soc. Mech. Eng. A, 38:10 1093-1100.   DOI
2 Jang, H. J., Shin, K. B., Ko, H. Y., 2012, A Study on the Lightweight Design of Hybrid Modular Carbody Structures Made of Sandwich Composites and Aluminum Extrusions Using Optimum Analysis Method Trans. Korean Soc. Mech. Eng. A, 36:11 1335-1343.   DOI
3 Kim, J. H., Shin, K. B., Hwang, T. K., 2014, Progressive Failure Analysis of Adhesive Joints of Filament-Wound Composite Pressure Vessel Trans. Korean Soc. Mech. Eng. A, 38:11 1265-1272.   DOI
4 Lee, P. G., Park, C. H., Jung, E. J., 2013, R&D in Modular Bridges, Journal of the Korea Concrete Institute, 25:2 16-20.
5 Lee, J. M., Lee, S. Y., Song, J. J., Park, K. H., 2015, Static Load Test on Flexural Strength and Crack Serviceability of Longitudinal Joint for the Slab-type Precast Modular Bridges, Journal of the Korea Concrete Institute, 27:2 137-145.   DOI
6 Lee, S. Y., 2011, Major Differences between the Precast and Modular Bridges, Journal of the Korean Society of Civil Engineers, 59:11 90-91.
7 Zhang, D. D., Zhao, Q., Huang, Y., Li, F., Chen, H., Miao, D., 2014, Flexural Properties of a Lighetweight Hybrid FRP-Aluminum Modular Space Truss Bridge System, Composite Structure, 108:1 600-615.   DOI
8 Joo, B. C., Song, J. J., Lee, S. Y., 2013, Flexural & Fatigue Evaluation of Link Slab for Continuous Girder-type Precast Modular Bridge, Journal of the Korea Concrete Institute, 25:5 517-528.   DOI
9 Ministry of Land, Infrastructure and Transport, 2015, Railway Safety Law,, Rep. of Korea.
10 Korea Rail Network Authority 2013, Standard of Railway Design (Roadbed), 11-B551219-000022-01, Rep. of Korea.
11 Ministry of Land, Infrastructure and Transport, 2012, Standard of Highway Bridge Design, 11-1611000-002161-14, Rep. of Korea.
12 Jang, H. J., Shin, K. B., Ko, H. Y., Ko, T. H., 2010, A Study on the Standardized Finite Element Models for Car body Structures of Railway Vehicle Made of Sandwich Composite, Journal of the Korean Society for Railway, 13:4 382-388.
13 Ko, H. Y., Shin, K. B., Jeong, J. C., 2009, A Study on the Comparison of Structural Performance Test and Analysis for Design Verification of Bimodal Tram Vehicle Made of Sandwich Composites Journal of the Korean Society for Railway, 12:4 518-525.