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DYNAMIC TEST

The 3S'TECH team carried out the dynamic acquisition of a pedestrian walkway in Anglès, Girona, in collaboration with ABM Engineering. Fundamental action to check if the structure complies with the acceptance criteria, established by the GENERAL DIRECTORATE OF ROADS, and thus finalize the bridge execution project.

The study is formed in the first instance by a finite element modeling of the structure, where the range of accelerations and fundamental frequencies to be acquired experimentally is sought. The next step was the experimental dynamic acquisition on the structure.

The first acquisition was using the output only system, where in this case a vibration signal is induced by the passage of people through the structure, using different hypotheses, in which the number of people and the frequency are varied by the way The output signal is acquired with a monitoring system.

The second acquisition was made using the input/output system, where the vibration signal is induced using an instrumented impact hammer. The output vibration signal is collected using a series of triaxial accelerometers distributed throughout the structure, connected to an acquisition system.

Finally, a Results Report was issued according to the applicable regulations. Simulation for the "Dynamics" course of the AMADE Master's at the University of Girona.

Simulation for the «Dynamics» course of AMADE's master of the Universitat de Gironaa

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