Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/45836
Título: | Comparison of stochastic prediction models based on visual inspections of bridge decks |
Autor(es): | Zambon, I. Vidovic, A. Strauss, A. Matos, José C. Amado, J. |
Palavras-chave: | Stochastic prediction models Markov process Gamma process Bridge management system Condition rating Visual inspection |
Data: | 2017 |
Editora: | Taylor and Francis |
Revista: | Journal of Civil Engineering and Management |
Resumo(s): | Due to a considerable amount of information required to support the decision-making processes, an increasing number of infrastructure owners use computerized management systems. Bridges, being complex and having significant impact on society, have often been the foundation for the development of these systems. In order to manage bridges effectively, condition prediction models are incorporated to the core of decision-making processes. Many of developed and applied stochastic prediction models show certain limitations. The impact of these limitations on deterioration predictions cannot be objectively evaluated without direct comparison of prediction results. Hence, several stochastic prediction models based on condition ratings obtained from visual inspections of bridge decks are compared in this article. Models are described and implemented on the data of around 1100 reinforced concrete bridge decks from the ‘Infraestruturas de Portugal’, a state owned Portuguese general concessionaire for roadways and railways. The statistical analysis of different models revealed significant deviations, particularly in higher condition ratings. Results indicate limited prediction capability of a simple homogeneous Markov chain model when compared with time- and space-continuous models, such as the gamma process model. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/45836 |
DOI: | 10.3846/13923730.2017.1323795 |
ISSN: | 1392-3730 |
e-ISSN: | 1822-3605 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Zambon et al. - COMPARISON OF STOCHASTIC PREDICTION MODELS BASED ON VISUAL INSPECTIONS OF BRIDGE DECKS.pdf Acesso restrito! | 1,02 MB | Adobe PDF | Ver/Abrir |