Estudio e implementación de puentes ABC en carreteras urbanas en Chile
Keywords:
Carreteras urbanas, Puentes, Prefabricados, Conexiones, Diseño EstructuralAbstract
In big cities the construction of road works generates more and more impact due to the interruption in crowded areas, therefore the main objective of the present work is to propose the ABC methodology in the design of road bridges in urban areas of great difficulty of location or in projects where a fast construction is required, by means of the application in a specific bridge in Chile. For this purpose, foreign standards related to ABC bridge design were studied and after a material selection, these standards were adapted to be applied in Chile, considering the seismic situation. ABC bridges are based on prefabricated elements which require connections that ensure a monolithic behavior. The connections between the deck with beams, column pile, column head and column foundation footing are mainly studied. The conventional design is compared with the ABC design for the same bridge. Excel spreadsheets and the SAP 2000 structural design program are used for this purpose. A study of the construction time is also carried out. It is obtained that the ABC design has a higher cost than the conventional design since it generates an increase in the dimensions of the elements. Regarding the construction time in the field, it is considerably less for the ABC design, so it is considered that the study fulfills the objective of presenting a new alternative for the construction of bridges in situations where the construction time in the field or the interference of the route are critical.
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Copyright (c) 2024 Joaquín Morales, Jose Luis Seguel
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