Evaluación teórica y experimental de la tecnología sensado de forma aplicada en tableros de puentes y forjados prefabricados.

Abstract

[ES] Este trabajo de fin de máster tiene como objetivo aplicar la tecnología de sensores de forma a dos tipologías diferentes de tableros de puentes, específicamente celosía metálica y viga artesa, así como a un forjado prefabricado.

El enfoque principal consiste en obtener la reconstrucción de forma a partir de las deformaciones unitarias medidas experimentalmente en diferentes casos de estudio. Luego, se comparan las flechas obtenidas en los ensayos con los resultados teóricos, con el fin de evaluar la viabilidad de aplicar esta tecnología a las estructuras analizadas.

A continuación, se realizan comparaciones entre los resultados de flechas obtenidos en los ensayos experimentales y los resultados obtenidos mediante modelos numéricos. Esto permite verificar el correcto funcionamiento de los modelos y, posteriormente, evaluar su aplicación en diferentes casos de carga, lo que amplía el alcance de la investigación.

[EN] This master's thesis aims to apply the shape sensing technology to two different types of bridge decks, specifically steel truss and trough beam, as well as to a prefabricated slab.

The main approach consists in obtaining the shape reconstruction from experimentally measured unit deflections in different case studies. Then, the deflections obtained in the tests are compared with the theoretical results, in order to evaluate the feasibility of applying this technology to the analyzed structures.

Then, comparisons are made between the deflection results obtained in the experimental tests and the results obtained by means of numerical models. This allows to verify the correct performance of the models and, subsequently, to evaluate their application in different load cases, which broadens the scope of the research.

The results indicate that the shape reconstruction behaves adequately; however, it is observed that it is influenced by different monitoring conditions, such as the number and location of the analyzed sections, as well as the location and magnitude of the applied forces.

In summary, this master's thesis demonstrates the applicability of shape sensor technology in various types of bridge decks and precast slabs. In addition, it highlights relevant considerations to ensure accurate measurements, such as the proper selection of the cross-sections to be analyzed and the correct location of the sensors according to the applied forces.