Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica
In the present work two methods for structural safety evaluation are applied (load rating and reliability index) on the same bridge which was applied a diagnostic load test with two different configurations of truck’s position. The aim is to compare the results and discuss about the limitations of e...
| Autor Principal: | Bolaños-Ávila, Darnel G. |
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| Formato: | Artículo |
| Idioma: | Español |
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Editorial Tecnológica de Costa Rica (entidad editora)
2019
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| Acceso en línea: |
https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4479 https://hdl.handle.net/2238/11974 |
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RepoTEC11974 |
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RepoTEC119742020-09-25T23:12:37Z Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica Comparación entre el índice de confiabilidad y capacidad de carga para la evaluación de seguridad estructural en puentes utilizando pruebas de carga de diagnóstico: Caso de estudio en Costa Rica Bolaños-Ávila, Darnel G. Load rating reliability index structural reliability diagnostic load test bridge Capacidad de carga índice de confiabilidad confiabilidad estructural prueba de carga de diagnóstico puente In the present work two methods for structural safety evaluation are applied (load rating and reliability index) on the same bridge which was applied a diagnostic load test with two different configurations of truck’s position. The aim is to compare the results and discuss about the limitations of each one and finally recommend cases where each method is more useful. Likewise accentuate the benefits of using load test for bridge condition evaluation with respect to the methodology that is in use in Costa Rica. The methods were evaluated for failure of flexure on the prestressed concrete beams. Besides it was developed a bridge model in the software CSi Bridge 2017® to compare the expected results with the obtained in the load test. The results show that the bridge has differences between the theoretical and real deformations, due to the stiffness of non-structural elements. The bridge has an excellent condition according to both methods. It concludes that the reliability index is better for structural safety evaluation, for its correlations for each bridge. En el presente trabajo se aplican dos métodos de evaluación de seguridad estructural (capacidad de carga e índice de confiabilidad) sobre el mismo puente al cual se le aplicó una prueba de carga de diagnóstico con dos configuraciones de posición de los camiones. El objetivo es comparar los resultados y, discutir acerca de las limitaciones de cada uno y finalmente recomendar casos donde cada método es más útil. Asimismo, recalcar el beneficio que se pueden obtener al emplear las pruebas de carga para la evaluación de la condición de los puentes con respecto a la metodología que se usa en Costa Rica. Los métodos son evaluados por falla a flexión en las vigas de concreto presforzado. Además se desarrolló un modelo del puente en el software CSi Bridge 2017® para comparar los resultados esperados con los obtenidos en la prueba de carga. Los resultados demuestran que el puente tiene marcadas diferencias entre las deformaciones teóricas y las reales, debido a la rigidez de elementos no estructurales. El puente se encuentra en condición excelente, según ambos métodos. Se concluye que para la evaluación de seguridad estructural, el índice de confiabilidad es el más indicado por las correlaciones intrínsecas para cada puente. 2019-07-26 2020-09-25T23:12:37Z 2020-09-25T23:12:37Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4479 10.18845/tm.v32i3.4479 https://hdl.handle.net/2238/11974 spa https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4479/4075 https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4479/4260 application/pdf text/html Editorial Tecnológica de Costa Rica (entidad editora) Tecnología en marcha Journal; 2019: Vol. 32, Núm. 3: Julio-Setiembre 2019; Pág. 55-65 Revista Tecnología en Marcha; 2019: Vol. 32, Núm. 3: Julio-Setiembre 2019; Pág. 55-65 2215-3241 0379-3982 |
| institution |
Tecnológico de Costa Rica |
| collection |
Repositorio TEC |
| language |
Español |
| topic |
Load rating reliability index structural reliability diagnostic load test bridge Capacidad de carga índice de confiabilidad confiabilidad estructural prueba de carga de diagnóstico puente |
| spellingShingle |
Load rating reliability index structural reliability diagnostic load test bridge Capacidad de carga índice de confiabilidad confiabilidad estructural prueba de carga de diagnóstico puente Bolaños-Ávila, Darnel G. Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| description |
In the present work two methods for structural safety evaluation are applied (load rating and reliability index) on the same bridge which was applied a diagnostic load test with two different configurations of truck’s position. The aim is to compare the results and discuss about the limitations of each one and finally recommend cases where each method is more useful. Likewise accentuate the benefits of using load test for bridge condition evaluation with respect to the methodology that is in use in Costa Rica. The methods were evaluated for failure of flexure on the prestressed concrete beams. Besides it was developed a bridge model in the software CSi Bridge 2017® to compare the expected results with the obtained in the load test. The results show that the bridge has differences between the theoretical and real deformations, due to the stiffness of non-structural elements. The bridge has an excellent condition according to both methods. It concludes that the reliability index is better for structural safety evaluation, for its correlations for each bridge. |
| format |
Artículo |
| author |
Bolaños-Ávila, Darnel G. |
| author_sort |
Bolaños-Ávila, Darnel G. |
| title |
Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| title_short |
Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| title_full |
Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| title_fullStr |
Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| title_full_unstemmed |
Comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: Case of study in Costa Rica |
| title_sort |
comparison between reliability index and load rating for evaluation of structural security of bridges using diagnostic load tests: case of study in costa rica |
| publisher |
Editorial Tecnológica de Costa Rica (entidad editora) |
| publishDate |
2019 |
| url |
https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4479 https://hdl.handle.net/2238/11974 |
| _version_ |
1796142479544680448 |
| score |
12.231669 |