TU Darmstadt Humvib-bridge: investigation of the human-structure interaction on a full-scale experimental pedestrian bridge

Abstract

The simulation of the human-induced vibrations of lightweight footbridges is in general a complex problem where the dynamics of the pedestrian system meet the structural dynamics of the bridge. However, standard methods for numerical analysis of pedestrian bridges deal with this issue by using simplified approaches. The structure is mostly represented either by discretized multi-mass systems or through a formulation in modal coordinates, while the excitation is typically described by a moving load. The positive effects of the interaction between the two systems (pedestrian and structure) are usually completely neglected. This paper, which is partially extracted from an actual research report of the Institute of Structural Mechanics and Design (TU Darmstadt), presents an experimental set-up developed for investigations of the human-structure interaction (HSI), as well as results of the preliminary investigations carried out in the same context.