Reliability-based optimisation design of post-tensioned concrete box girder bridges considering pitting corrosion attack
- Authors
- Van-Son Nguyen; Jeong, Min Chul; Han, Tong Seok; Kong, Jung Sik
- Issue Date
- 2013
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- reliability-based design optimisation; structural optimisation; pitting corrosion; structural reliability; prestressed concrete
- Citation
- STRUCTURE AND INFRASTRUCTURE ENGINEERING, v.9, no.1, pp.78 - 96
- Indexed
- SCIE
SCOPUS
- Journal Title
- STRUCTURE AND INFRASTRUCTURE ENGINEERING
- Volume
- 9
- Number
- 1
- Start Page
- 78
- End Page
- 96
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/106552
- DOI
- 10.1080/15732479.2010.524653
- ISSN
- 1573-2479
- Abstract
- Since the mid-twentieth century, prestressed concrete (PC) bridges have been significantly developed to become the most important type of bridge in the world. However, only a few studies have dealt with the reliability-based design optimisation (RBDO) of PC bridges despite the fact that RBDO demonstrates the real behaviour of structures. Moreover, the corrosion of post-tensioned tendon in PC bridges seriously caused sudden failures which have been recorded in the world. Since then, this study presents the probabilistic model and approach to formulate and analyse the RBDO of PC box girder bridges which consider the pitting corrosion phenomenon of shear, torsion reinforcements and post-tensioned tendon. A practical example of a typical PC box girder bridge is presented and discussed. Sensitive analyses are performed to evaluate the influence of ultimate target reliability index on the optimal solution. For the simple support PC box girder bridge, the ultimate target reliability index should be in the range of beta(ult): 3.5-5 in order to produce the optimal design.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.