Andrei Firus studied civil engineering at the University "Politehnica" Timisoara, Romania and at the HTWG Konstanz - University of Applied Sciences, Konstanz, Germany. Between 2015 and 2021, he completed his PhD in structural dynamics at the Institute of Structural Mechanics and Design (Prof. Dr.-Ing. Jens Schneider), Technical University of Darmstadt, Germany. In 2020, he co-founded iSEA Tec GmbH in Friedrichshafen, Germany. Since then, he has been managing director of the company, which is active in the fields of structural design of lightweight structures, structural dynamics as well as monitoring and condition assessment of existing structures.

• Introduction.- Force identification methods – state of the art and research.- Fundamentals of bridge dynamics under moving loads.- Introduction to inverse problems.- Formulation of an inverse problem for moving force identification.- Numerical validation with simulated measurement data.- Experimental validation: railway bridge in operation.- Experimental validation: pedestrian bridge.- Conclusion and outlook.