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New Bidirectional Heavy Device for Launching Bridges Based on Inverted Caterpillar Mechanism

[ Vol. 10 , Issue. 3 ]


Mar Alonso-Martinez*, Juan J. del Coz-Diaz, Daniel Castro-Fresno and Antonio Navarro-Manso   Pages 218 - 223 ( 6 )


Background: This patent is based on the combination of caterpillar mechanisms and conveyors. Caterpillar tracks support heavy loads and adapt this support according to the ground conditions. Conveyors displace distributed loads continuously and bidirectionally using the force of friction. This paper describes a revision of previous patents related to this innovative design.

Objective: This paper presents an innovative patent to continuously displace heavy structures safely. The mechanism was patented in 2011 as Spanish Patent ES2367737. The combination of these mechanisms provides the design of this patent to displace heavy structures continuously and bidirectionally, while adapting to the deflection of the structures.

Methods: The most important elements of this patent are detailed in the paper. The most innovative component is the load compensation system, which increases the safety of the displacement of heavy structures. This system controls the load applied on the mechanism, and the displacement can be stopped before the collapse of the heavy structure.

Results: An application of the patent for launching bridges using the Incremental Launching Method is presented. This mechanism is used to displace heavy structures using the force of friction.

Conclusion: The patented mechanism is an original contribution for the displacement of heavy structures continuously and bidirectionally. The patent can be used to launch bridges, improving the efficiency, sustainability, and safety of current systems.


Caterpillar mechanism, construction, conveyors, friction force, heavy structures, launching bridges.


Construction and Manufacturing Department, Polytechnique Engineering School, University of Oviedo, Campus de Viesques, Gijon, Asturias, Department of Construction and Manufacturing, EPI Gijon, University of Oviedo, 33204 Gijon, GITECO Research Group, ETSICCP, University of Cantabria, 39005 Santander, Department of Energy, University of Oviedo, 33204 Gijon

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