Textile Reinforced Concrete – Realization in applications
Textile Reinforced Concrete (TRC) is a composite material made of open-meshed textile structures and a fine-grained concrete. Comparable to steel reinforcement the textile fabric bears the tensile forces released by the cracking of the concrete. Only a minimal concrete cover is required for the bond of the textile fabrics. Thus, the application of TRC leads to the design of filigree and lightweight concrete structures with high durability and high quality surfaces. In recent years, TRC has been successfully employed for the production of ventilated facade systems. Current investigations enlarge the application range of TRC to facade systems with large spans and load-bearing structures. In this paper, the investigations on self-supporting and structural sandwich panels regarding production methods, results of bending and shear tests, tests on sound insulation and fire resistance as well as first prototypes of slender frames and shell elements are presented.
Structure construction/rhombic lattice structures : Bar nets of textile reinforced concrete
For several years, the novel composite material oftextile reinforced concrete has been researched and developed within the framework of both collaborative research centers SFB 528 (Technical University of Dresden) as well as SFB 532 (RWTH Aachen University). After some applications in the field of building facades, now the first structure constructions of textile reinforced concrete are introduced. At the example of rhombic lattice structure, all development steps from the design to the assembly of a prototype are presented.
Tragverhalten von textilbewehrtem Beton
Das Tragverhalten von textilbewehrtem Beton ähnelt dem von Stahlbeton, wird aber deutlicher durch den Verbund der textilen Bewehrung mit dem Feinbeton geprägt. Neben dem Materialverhalten werden deshalb das Rißbildungsverhalten, die Bruchtragfähigkeit, das Verformungsverhalten und die Dauerhaftigkeit gezielt untersucht. Mit den daraus abgeleiteten Nachweiskonzepten und Bemessungsmodellen wurden bereits erste Anwendungen realisiert. Im Beitrag werden die wesentlichen hierzu vorliegenden Ergebnisse zusammenfassend dargestellt.