5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


LOAD REDISTRIBUTION AMONG STEEL PIERS IN CONTINUOUS ELEVATED-GIRDER BRIDGES SUBJECTED TO MULTI-DIRECTIONAL SEISMIC ACCELERATIONS

 

Toru Okumura 1*, Yoshiaki Goto 1

1 Earthquake Engineering Research Center Inc., Miyazaki, Japan

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2 Nagoya institute of technology, Professor, Nagoya, Japan

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DOI:10.18057/ICASS2018.P.128

ABSTRACT:

To prevent the collapse of entire structures under mega earthquake ground motions that exceed the scale of design ground motion, the effect of load redistribution among the members of an elevated-girder bridge was investigated. Three types of ultimate states classified in terms of the levels of load redistribution were defined, and methods of evaluating the safety margin corresponding to each limit state were put forward. Based on a detailed numerical analysis, margins up to the respective ultimate states were determined. The numerical analysis shows that there exists a relatively significant margin between the safety limit state and the ultimate state of the entire bridge system. As such, it can be effective to adopt a strategy that can enhance the load redistribution capacity among members after the safety limit state is reached.

Keywords:

Elevated-girder bridge; Seismic design; Load redistribution; Limit state; Safety margin

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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