Desarrollo de nuevas formas parametrizadas para pasarelas eficientes y elegantes

The purpose of this thesis is to propose a methodology for single-span, pedestrian bridges, based on specific conditions, using an attractive design.This thesis explains the design and geometric formulation of three types of pedestrian bridges, namely Von Mises, Monocontentio and Bicontentio. Their designs are based on five basic principles: (1) integration into the geometry of the environment; (2) permanent search for simplicity; (3) design based on a geometry that emanates from structural behavior; (4) uniform shapes; and (5) enduring details.

The silhouette of the Von Mises bridge is inspired by the Von Mises criterion graph, corresponding to a simply-supported beam.The Monocontentio prototype is inspired by the bending moment diagram of a beam fixed at one end and simply supported at the other end. The Bicontentio bridge is inspired by the bending moment diagram of a beam fixed at both ends.

This thesis includes a formulation methodology that defines mathematical expressions that govern the main dimensions and thickness of a pedestrian bridge, depending on its respective width and span. A comparative analysis demonstrates the efficiency of these three particular prototypes, due to their variable depth, adapted to the internal forces, and due to fix the structure in abutments. Likewise, this paper analyses and links the design and engineering with the aesthetic expression of the bridges. The author has used this design philosophy in thirty bridge projects over the last 25 years, and such philosophy may be applied in a systematic way by other professionals.

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