期刊
ENGINEERING STRUCTURES
卷 127, 期 -, 页码 388-401出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2016.08.060
关键词
Masonry arch bridges; Inverse analysis; Optimization; Genetic algorithm; Unilateral contact-friction
资金
- Spanish Ministry of Economy and Competitiveness through the project HERMES-S3D: Healthy and Efficient Routes in Massive Open-Data based Smart Cities [TIN2013-46801-C4-4-R]
In this paper a novel approach for the investigation of pathological problems in masonry arch bridges using inverse analysis procedures is proposed. A real case study located in Kakodiki village on the island of Crete (Greece) is considered for the application of the proposed computational scheme. The method uses the damaged condition of the bridge as starting point and seeks the potential load cases that led to its development. The damage identification is transformed into a parameter identification problem which is studied by comparing numerical predictions and existing damage pattern. A global optimization approach by means of a genetic algorithm is adopted within the inverse problem, aiming at adjusting the parameters of the mechanical model of the structure so that an error function that measures the differences between the real and the numerically predicted damage pattern is minimized. The outcome of the methodology might provide a valuable information regarding to the planning of maintenance actions as well as to the design of retrofitting measures. (C) 2016 Elsevier Ltd. All rights reserved.
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