Evaluación estructural de la superestructura de un puente existente tipo viga losa de hormigón armado en Ecuador
Date
Subject
Evaluación estructural
factor de capacidad
puente viga - losa
superestructura
Structural evaluation
beam – slab bridge
rating factor
superstructure
factor de capacidad
puente viga - losa
superestructura
Structural evaluation
beam – slab bridge
rating factor
superstructure
Language:
Journal Title
Journal ISSN
Volume Title
Publisher
Instituto Tecnológico de Santo Domingo (INTEC)
Este trabajo tiene como finalidad evaluar la superestructura del puente tipo viga – losa de hormigón armado sobre el río Soloma, situado en la provincia de Bolívar, Ecuador. El puente se encuentra conformado por un solo vano de 30 m de longitud, 10 m de ancho y 3 vigas longitudinales. La evaluación se realizó haciendo uso del “Manual for Bridge Evaluation” el cual pertenece a la normativa AASHTO, específicamente siguiendo la metodología “Load and Resistance Factor Rating” y aplicándolo a las condiciones y normativas actuales del Ecuador. Inicialmente, se realizan los cálculos para determinar las solicitaciones a las que está sujeto el puente haciendo uso de la AASHTO y la Norma Ecuatoriana de vialidad y utilizando los factores para las combinaciones de carga correspondientes a las condiciones del puente, con ello se comparan estos resultados con la resistencia real de los elementos dictaminado por los planos estructurales reales. Estos elementos en cuestión son: tablero, viga interior, vigas exteriores, diafragmas y voladizo. Posteriormente, se realiza una modelación del puente en el Software CSI Bridge para obtener un análisis más riguroso del comportamiento de la estructura ante las cargas, siguiendo las normas actuales. Una vez finalizada la modelación se presentan los resultados respectivos de momentos flectores y fuerzas cortantes en los elementos para obtener el factor de capacidad de carga “RF” y con ello analizar los puntos críticos del puente. Realizado los análisis y comparaciones se concluye que los únicos elementos que presentan deficiencias son las vigas.
The purpose of this work is to evaluate the superstructure of the reinforced concrete beam-slab type bridge over the Soloma River, located in the province of Bolívar, Ecuador. It consists of a single span of 30 meters in length, 10 meters in width, and 3 longitudinal beams. This evaluation is carried out using the “Manual for Bridge Evaluation” of the AASHTO standard, specifically following the “Load and Resistance Factor Rating” methodology and applying it to the current conditions in Ecuador. Initially, calculations are made to determine the demands on the bridge using the AASHTO standard and the Ecuadorian Road Standard and applying the load combination factors corresponding to the bridge conditions. These results are compared with the actual resistance of the elements as dictated by the actual structural plans. The elements in question include the slab, interior beam, exterior beams, diaphragms, and cantilever slab. Subsequently, a model of the bridge is created using the CSI Bridge software to obtain a more rigorous analysis of the structure's behavior under loads, following current standards. Once the modeling is completed, the respective results of bending moments and shear forces in the elements are obtained to determine the load rating factor “RF” and analyze the critical points of the bridge. After performing the analyses and comparisons, it is concluded that the only elements presenting issues are both the exterior and interior beams.
The purpose of this work is to evaluate the superstructure of the reinforced concrete beam-slab type bridge over the Soloma River, located in the province of Bolívar, Ecuador. It consists of a single span of 30 meters in length, 10 meters in width, and 3 longitudinal beams. This evaluation is carried out using the “Manual for Bridge Evaluation” of the AASHTO standard, specifically following the “Load and Resistance Factor Rating” methodology and applying it to the current conditions in Ecuador. Initially, calculations are made to determine the demands on the bridge using the AASHTO standard and the Ecuadorian Road Standard and applying the load combination factors corresponding to the bridge conditions. These results are compared with the actual resistance of the elements as dictated by the actual structural plans. The elements in question include the slab, interior beam, exterior beams, diaphragms, and cantilever slab. Subsequently, a model of the bridge is created using the CSI Bridge software to obtain a more rigorous analysis of the structure's behavior under loads, following current standards. Once the modeling is completed, the respective results of bending moments and shear forces in the elements are obtained to determine the load rating factor “RF” and analyze the critical points of the bridge. After performing the analyses and comparisons, it is concluded that the only elements presenting issues are both the exterior and interior beams.
Description
Type
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Art.
info:eu-repo/semantics/publishedVersion
Art.
Source
Science, Engineering and Applications; Vol. 7 No. 2 (2024): Science, Engineering and Applications; 47-83
Ciencia, Ingenierías y Aplicaciones; Vol. 7 Núm. 2 (2024): Ciencia, Ingenierías y Aplicaciones; 47-83
2636-2171
2636-218X
10.22206/cite.2024.v7i2
Ciencia, Ingenierías y Aplicaciones; Vol. 7 Núm. 2 (2024): Ciencia, Ingenierías y Aplicaciones; 47-83
2636-2171
2636-218X
10.22206/cite.2024.v7i2