Technologien und Entwicklungen im Segmentbrückenbau.

Technologies and developments in precast segmental bridge construction Since the beginning of the European post‐war era, prestressed concrete bridges have been constructed from fully prefabricated superstructure segments without additional in‐situ concrete connections. This construction method, commonly known as precast segmental bridge construction, enables extremely economical and fast construction methods due to the minimisation of production steps on the construction site and is therefore now being used worldwide with increasing tendency. This article first examines the development and worldwide usage of precast segmental bridges based on an evaluation of an international database for engineering structures. Subsequently, certain key technologies in the production of precast segments, the structural design of joints and tendons, as well as erection methods of precast segmental bridges according to the current state of the art are presented. With a look at some recent research activities, the application of innovative construction materials such as high‐performance concrete and carbon fibre reinforced polymers in precast segmental construction and the resulting design possibilities are discussed. Finally, an outlook into a possible future of precast concrete construction in a digitalised construction industry is given on the basis of several approaches of the currently ongoing research programme SPP 2187. [ABSTRACT FROM AUTHOR]