Structures Congress 2018
Multi-Scale Finite Element Model Development for Long-Term Condition Assessment of Vertical Lift Bridge
Publication: Structures Congress 2018: Bridges, Transportation Structures, and Nonbuilding Structures
ABSTRACT
Early stage objective information relating to the structural integrity of civil infrastructures such as bridges is critical for design verification and infrastructure management. Creating structural models validated with the collected structural response data from an instrumented bridge develops a comprehensive database for reliable performance prediction of the bridge under various environmental and traffic demands. In this paper, the newly reconstructed Memorial Bridge is considered as a case study to develop such a finite element (FE) model. The typical challenge associated with the bridge structural response is the behavior of the non-instrumented components which are addressed using a fully detailed three-dimensional finite element model, where all components are represented by shell elements. This detailed model is considered as a benchmark to assess a more efficient multi-scale model that uses a combination of shell and beam elements. This paper presents a comparison of the structural response of the multiple scale models and remarks on the accuracy of a full shell model and the practical application of a beam element model. This comparison includes computational effort consideration, an objective of the analysis.
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ACKNOWLEDGMENT
This material is based upon work partially supported by the National Science Foundation under Grant No. 1430260, FHWA AID: DEMO Program and funding from the NHDOT Research Advisory Council. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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Published In
Structures Congress 2018: Bridges, Transportation Structures, and Nonbuilding Structures
Pages: 90 - 99
Editor: James Gregory Soules, CB&I
ISBN (Online): 978-0-7844-8133-2
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Apr 17, 2018
Published in print: Apr 17, 2018
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