Condition-assessment-based finite element modeling of long-span bridge by mixed dimensional coupling method
Chan, Tommy H.T., Yu, Yang, Wong, K.Y., & Li, Z.X. (2008) Condition-assessment-based finite element modeling of long-span bridge by mixed dimensional coupling method. In Gao, Jinji, Lee, Jay, Ni, Jun, Ma, Lin, & Mathew, Joseph (Eds.) 3rd World Congress on Engineering Asset Management and Intelligent Maintenance Systems Conference (WCEAM-IMS 2008): Engineering Asset Management – A Foundation for Sustainable Development, 27–30 October 2008, Beijing, China.
Visual inspection has showed distinct limitations in practical application in condition assessment procedure of large civil infrastructures. The real condition of structure thus greatly depends on an accurate finite element model considering initial defects and deteriorating progress. For the purpose of fatigue damage evaluation of these structures, usually a global structural analysis using a global FE model is first conducted to determine the critical locations, based on which local analysis is then carried out to obtain the hot-spot stress distribution that is commonly considered as the fundamental information for the condition assessment. Since the structural characteristics behaved at the different scales, a mixed dimensional coupling method is obviously necessary and implemented by merging typical detailed joint geometry model into the global model so that the hot-spot stress could be directly output through a single step of analysis. As a case study, a multi-scale model of Tsing Ma Bridge (TMB) is then developed by aforementioned coupling method. The comparison of dynamic characteristics and static responses in term of first few natural frequencies and vertical displacement influence line data respectively between the calculated results and monitoring data indicated that the mixed dimensional coupling method adopted in this paper is convenient and appropriate, and even reliable and accurate for the purpose of condition assessment of long-span bridge structures. The accumulative fatigue damage due to the typhoon York showed that it is much severer than that caused by normal traffic loading, which indicated more attentions should be made after these ultimate events occurred.
Impact and interest:
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Conference Paper|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2008 Springer|
|Copyright Statement:||This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink. http://www.springerlink.com SpringerLink|
|Deposited On:||10 Dec 2008 08:24|
|Last Modified:||29 Feb 2012 23:52|
Repository Staff Only: item control page