Thin Sandwich Elements Prestressed with CFRP Tendons

Von der Christine A., Bosbach S., Stark A., Schulze-Ardey J. P., Hegger J.

10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Turkey, 8 - 10 December 2021, vol.198, pp.351-362 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 198
  • Doi Number: 10.1007/978-3-030-88166-5_30
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.351-362
  • Keywords: Textile reinforced concrete, CFRP tendons, Prestressed concrete, Sandwich constructions, Textile connecting devices
  • Istanbul Technical University Affiliated: No

Abstract

Sandwich panels exhibit an attractive choice for modern building envelopes. Innovative high performance materials such as non-corrosive carbon reinforcement make it possible to produce elements with thin layers, which fulfil the requirements of sustainable and durable building envelopes. The application of two thin facings made of high performance concrete (HPC) and a core of polymeric rigid foam (PU) can highly enhance the load-bearing capacity of sandwich panels providing a low weight at the same time. In order to enable large facade elements or wide-span roof elements, an additional prestressing with CFRP (carbon fibre reinforced polymer) tendons is advantageous. These prestressed slender sandwich elements have a high potential for economic savings in terms of material and transport as well as reduced time efforts during mounting.