5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


DISPLACEMENT AT GIRDER END OF LONG-SPAN RAILWAY STEEL BRIDGES AND PERFORMANCE REQUIREMENTS FOR BRIDGE EXPANSION JOINT

 

Hui GUO 1, 2*, Suoting HU 1, 2, Xiaoguang LIU 1, 2 and Pengfei SU 1

1 Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, China

E-mails: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

2 State Key Laboratory for Track Technology of High-Speed Railway, Beijing, China

DOI:10.18057/ICASS2018.P.035

ABSTRACT:

In-depth understanding of spatial displacement at girder end of long-span railway steel bridges is vital to the design of bridge expansion joint (BEJ). And the performance requirements for BEJ are directly related to the displacement characteristics. In this paper, three different bridge types and corresponding structural restraint system are considered. Results show that the longitudinal displacement at girder end is mainly influenced by bridge types, structural restraint system and effective temperature. In some cases, train loads, longitudinal wind loads, and braking force also have obvious contributions especially for the semi-floating system. Vertical rotation angle at girder end is largely decided by train loads, uneven foundation settlement and temperature. It is also influenced by arrangement of auxiliary piers. Transverse movement and its rotation angle are the key factors deciding the safety and ride comfort of running train at the region of girder end. Two types of BEJs for railway bridges are introduced. Performance requirements for BEJ are proposed according to analysis results.

Keywords:

Displacement; Girder end; Railway steel bridge; Bridge expansion joint (BEJ); Performance

Download PDF:

IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM Time's Up