Design Study for textile reinforced concrete bridges (D836)
Allgemeine Angaben:
- Diplomarbeit Nr. D836
- Bearbeiter: Juan Chen
- Verantwortl. Hochschullehrer: Univ.-Prof. Dr.-Ing. Manfred Curbach
- Betreuer: Dirk Jesse, Steffen Marx
- Bearbeitungszeitraum: 07/2007 - 12/2007
Zielstellung
Concrete provides a brought variety of construction and design possibilities. The low tensile capacity of concrete is taken by reinforcement of steel, short fibers or textile fabrics. Textile reinforced concrete (TRC) is a high performance composite in which technical textiles made of high performance fibers are embedded in a fine-grained concrete matrix. Because of the corrosion resistance of the textile materials, thick concrete covers as known in ordinary reinforced concrete are no longer needed.
Slender new concrete elements in extend concrete application to completely new fields and gives architects and engineers more design possibilities.
In the summer of 2006, visitors to a regional horticultural show in Oschatz (Germany), have walked on a world novelty when they crossed one of the three bridges over the river Döllnitz. The structure ist made of textile reinforced concrete, in which concrete is strengthened by several textile layers instead of steel.
Design, reinforcement concept, production, approval tests and numerical simulations considering uncertain data are demonstrated for the first bridge made of textile reinforced concrete. It is shown that application of this new, sophisticated composite material is already possible, although more research is needed.
In the Masterthesis design concepts of lightweight structures should be studied and extended to its application on TRC-bridges. Different bridge concepts should be taken into consideration. Starting with a literature study on lightweight structures, possible types of structures are to systemise. Static systems, cross sections and nodal solutions should be detailed and roughly calculated.
Finally design studies demonstrate possible solutions.