Uncertainty in Building Inspection and Diagnosis: A Probabilistic Model Quantification
| Autor: | Inês Flores-Colen, Clara Pereira, Jorge de Brito, Claudia Pio Ferreira, José Dinis Silvestre, Ana Maria Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
façade renders
Technology Computer science Bayesian network Conditional probability Statistical model Sample (statistics) Building and Construction Geotechnical Engineering and Engineering Geology computer.software_genre Computer Science Applications building inspection and diagnosis Bayesian networks A priori and a posteriori General Materials Science Facade Data mining Sensitivity (control systems) Building inspection uncertainty computer Civil and Structural Engineering |
| Zdroj: | Infrastructures, Vol 6, Iss 124, p 124 (2021) Infrastructures Volume 6 Issue 9 |
| ISSN: | 2412-3811 |
| Popis: | In the field of building inspection and diagnosis, uncertainty is common and surveyors are aware of it, although it is not easily measured. This research proposes a model to quantify uncertainty based on the inspection of rendered façades. A Bayesian network is developed, considering three levels of variables: characteristics of the building, façade and exposure conditions causes of defects and defects. To compute conditional probabilities, the results of an inspection campaign from the literature are used. Then, the proposed model is validated and verified using inspection results from another sample, the combination of a strength-of-influence diagram and sensitivity analysis and the application of the model to a case study. Results show that the probabilities computed by the model are a reasonable representation of the hesitancy in decision making during the diagnosis process based only on visual observation. For instance, design and execution errors show lower probabilities due to not being verifiable a posteriori without detailed documentation. The proposed model may be extended and replicated for other building materials in the future, as it may be a useful tool to improve the perception of uncertainty in a key stage of building maintenance or rehabilitation. |
| Databáze: | OpenAIRE |
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