TITLE:
Unsymmetrical Fibre-Reinforced Plastics for the Production of Curved Textile Reinforced Concrete Elements
AUTHORS:
Henrik L. Funke, Sandra Gelbrich, Andreas Ehrlich, Lars Ulke-Winter, Lothar Kroll
KEYWORDS:
Anisotropic Formworks, Textile-Reinforced Concrete, Fibre-Reinforced Plastics, Curved Concrete
JOURNAL NAME:
Open Journal of Composite Materials,
Vol.4 No.4,
October
24,
2014
ABSTRACT: A new constructive and technological approach was developed for the
efficient production of large-dimensioned, curved freeform formworks, which allow the manufacturing of
single and double-curved textile reinforced concrete elements. The approach is
based on a flexible, multi-layered formwork system, which consists of
glass-fibre reinforced plastic (GFRP). Using the unusual structural behavior caused
by anisotropy, these GFRP formwork elements permit a specific adjustment of
defined curvature. The system design of the developed GFRP formwork and the
concrete-lightweight-elements with stabilized spacer fabric was examined
exhaustively. Prototypical curved freeform surfaces with different curvature
radii were designed, numerically computed and produced. Furthermore, the fabric’s
contour accuracy of the fabric was verified, and its integration was adjusted
to loads.