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Translation abstract A modular precast segmental bridge with thermally formed CFRP reinforcement – modularisation approach and precast concrete productionModular construction enables the serial prefabrication of structural elements and transfers manufacturing processes from the construction site to the protected environment of a precast concrete factory. In serial production with sufficient quantities, rationalisation, digitalisation and automation of manufacturing processes becomes viable and economies of scale can be utilised. In the design realisation of modular building structures, the design engineer is faced with the challenge of arranging these into sensible modules and designing robust and durable joints. This article presents a modularisation approach based on the principles of precast segmental construction and discusses the design and precast segment production for an 8.10 m long test bridge. Non‐metallic reinforcement made of carbon fibre reinforced polymers (CFRP) is used in order to create particularly material‐efficient and thin‐walled concrete cross‐sections and to avoid the risk of reinforcement corrosion. The forming of the reinforcement elements, which is currently still a technical challenge in the application of CFRP‐reinforced concrete, was realised by using recently developed processes of thermal forming. With the realisation of a modular segmental bridge with thermally formed CFRP reinforcement, the authors aim to contribute to the development of technical solutions for modular construction and demonstrate new fields of application for non‐metallic reinforcements. [ABSTRACT FROM AUTHOR]

The bond behavior between reinforcement and concrete has a significant influence on the load‐bearing behavior and serviceability of the composite material. This paper focuses on the characterization of the bond behavior between fine‐grained concrete and mineral‐impregnated carbon‐fiber reinforcement. In this study, the influence of different bond lengths on local bond behavior was experimentally investigated. To predict the bond stress along the bond length, an analytical bond stress‐slip model was specified, and its model parameters were determined based on the experimental tests using an iterative approximation approach. Based on the defined bond stress‐slip model, a numerical bond model was developed and adjusted for the first time. A three‐dimensional (3D) finite element analysis (FEA) allows the simulation of the local bond stress along the bond length. Finally, the results of the 3D FEA were compared with the results of the experimental investigations to validate the developed numerical model. [ABSTRACT FROM AUTHOR]