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Title:

Experimental and Numerical Analysis of a Protective Course Used on Railway Steel Bridge

Accession Number:

01372702

Record Type:

Component

Abstract:

In order to improve the service safety and the service life of the railway bridge, this paper proposes an epoxy asphalt concrete protective course (EACPC) for the railway steel bridge deck. Firstly, the strength performances of the epoxy asphalt concrete (EAC) were tested through a laboratory experimental program, during which the compressive strength, bending strength and the indirect tensile strength were tested at varying temperatures and compared with the C50 cement concrete. The results show that EAC has good strength performance and cracking resistance, and the greatest bending strength can be nearly 3 times larger than that of PCC. Secondly, the cooperative performances of the EAC were evaluated by the abrasion resistance test and the linear contraction coefficient test. The results show that the EACPC has good cooperative performance with the ballast layer and the steel deck, and performs well under both construction load and thermal load. Finally, a numerical analysis of a typical railway steel bridge deck system was conducted, and the dynamic response of EACPC under trainload was investigated through a finite element model. The results also show that the strength of EAC can meet the requirements of the protective course well, and EAC cooperates well with the steel deck. Thus, it could be indicated that EAC is a good material for protective course of railway bridge deck.

Supplemental Notes:

This paper was sponsored by TRB committee AR050 Railroad Track Structure System Design

Monograph Accession #:

01362476

Report/Paper Numbers:

12-2770

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Qian, Zhendong
Chen, Leilei

Pagination:

13p

Publication Date:

2012

Conference:

Transportation Research Board 91st Annual Meeting

Location: Washington DC, United States
Date: 2012-1-22 to 2012-1-26
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Bridges and other structures; Materials; Railroads; I22: Design of Pavements, Railways and Guideways; I24: Design of Bridges and Retaining Walls; I31: Bituminous Binders and Materials

Source Data:

Transportation Research Board Annual Meeting 2012 Paper #12-2770

Files:

TRIS, TRB

Created Date:

Feb 8 2012 5:12PM