Structural Reliability of the Tampico Bridge under Wind Loading
A highway bridge located inTampico, on the east coast of Mexico, isanalyzed to determine its structural reliabilityagainst wind loading. The inherent variabilitiesof the random wind force and of themechanical properties of steel constitutethe aleatory uncertainty; this contributes tothe probability...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | México |
| Institución: | Universidad Autónoma del Estado de México |
| Repositorio: | Redalyc-UAEMEX |
| OAI Identifier: | oai:redalyc.org:10415207 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=10415207 |
| Access Level: | acceso abierto |
| Palabra clave: | Multidisciplinarias (Ciencias Sociales) cycle cost wind loading expected life optimal design Bridge reliability |
| Sumario: | A highway bridge located inTampico, on the east coast of Mexico, isanalyzed to determine its structural reliabilityagainst wind loading. The inherent variabilitiesof the random wind force and of themechanical properties of steel constitutethe aleatory uncertainty; this contributes tothe probability of failure of the steel girder.The idealization of the loading and of thebridge structure, and the analysis of thestructural response to wind loading, contributeto additional uncertainty of the epistemictype, which leads to a range of possible(or distribution of) failure probabilities. Thedesign with the minimum expected life-cyclecost is the optimal design. However, for thisoptimal design, the 90% value (or the meanplus one standard deviation value) of thecorresponding failure probability or safetyindex may be selected for a risk-aversivedesign. The proposed criteria constitute a newapproach to make conservative decisions andinvolve the epistemic uncertainty on the bridgedesign and assessment process |
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