Case Statistics of Instability Failure of Steel Bridges and Calculation Analysis of Typical Cases
This paper focuses on 44 cases of steel bridges damaged by instability at home and abroad, and analyzes the statistical characteristics of the bridges, from the causes of damage to the phase of failure, bridge type, and the span and the use of bridge. The results show that the large slenderness ratio is the primary cause of instability in steel bridges, accounting for about 79.5% of cases. Meanwhile, the instability of the construction process accounts for about 70.5% of cases, which is much higher than instability recorded in the service phase. In this paper, the typical cases of each type of instability are selected for finite element modeling analysis or discussion on a mechanical level to determine the failure mechanism of various steel bridges. Based on this, several engineering proposals are put forward, which aim to prevent the instability of steel bridges and have reference value for practical engineering.
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Supplemental Notes:
- © 2020 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Zhao, Jin-Kai
- Liu, Yong-Jian
- Zhang, Guo-Jing
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Conference:
- 20th COTA International Conference of Transportation Professionals
- Location: Xi’an , China
- Date: 2020-8-14 to 2020-8-16
- Publication Date: 2020-8
Language
- English
Media Info
- Media Type: Web
- Pagination: pp 1728-1740
- Monograph Title: CICTP 2020: Advanced Transportation Technologies and Development-Enhancing Connections
Subject/Index Terms
- TRT Terms: Bridge engineering; Calculation; Case studies; Failure analysis; Finite element method; Stability (Mechanics); Statistics; Steel bridges
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 01758714
- Record Type: Publication
- ISBN: 9780784482933
- Files: TRIS, ASCE
- Created Date: Nov 20 2020 11:07AM