Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Towards material-adapted structural forms for composite fibre materials
The use of composite fibre materials for civil engineering structures experienced its first peak in the 1950's and 60's. Today's increased use of composite fibre materials is partly attributed to the development of the pultrusion process, a special technique that allows for the production of composite fibre elements in shapes commonly used in steel or aluminium constructions. The pedestrian bridge in Pontresina (CH), constructed in 1997 in collaboration with the Swiss Federal Institute of Technology Zurich, was a first step towards a material-adapted connection technique for composite fibre materials. The truss bridge has two spans of 12.50 m and a width of 1.50 m. It is used only during the winter and remove in spring. The bridge is composed of composite fibre elements. The matrix used for the elements consists of an isophtalacid-polyester. The matrix is strengthened with fibres made of E-glass. The connections in one of the bridge spans were bolted conventionally. Connections in the second span, however, were glued with a two component epoxy resin based glue. For anisotropic composite materials gluing is a more material-adapted connection technique than bolting. Another step towards material-adapted connection techniques for composite materials was made during the construction of the 5-storey 'Eyecatcher' at Swiss Building Fair 1999 in Basel. The 15 m tall Eyecatcher is composed of glass fibre reinforced polyester building elements. The primary load-carrying structure of the Eyecatcher consists of three parallel trapezoidal frames connected by wooden decks. The structural joints in the frames are bolted in order to facilitate dismantling of the structure after its first use. Furthermore, facade elements made of glass fibre reinforced polyester is presented. When considering past developments of (now) traditional materials, another one or two decades must pass until these new building methods will have been matured.
Towards material-adapted structural forms for composite fibre materials
The use of composite fibre materials for civil engineering structures experienced its first peak in the 1950's and 60's. Today's increased use of composite fibre materials is partly attributed to the development of the pultrusion process, a special technique that allows for the production of composite fibre elements in shapes commonly used in steel or aluminium constructions. The pedestrian bridge in Pontresina (CH), constructed in 1997 in collaboration with the Swiss Federal Institute of Technology Zurich, was a first step towards a material-adapted connection technique for composite fibre materials. The truss bridge has two spans of 12.50 m and a width of 1.50 m. It is used only during the winter and remove in spring. The bridge is composed of composite fibre elements. The matrix used for the elements consists of an isophtalacid-polyester. The matrix is strengthened with fibres made of E-glass. The connections in one of the bridge spans were bolted conventionally. Connections in the second span, however, were glued with a two component epoxy resin based glue. For anisotropic composite materials gluing is a more material-adapted connection technique than bolting. Another step towards material-adapted connection techniques for composite materials was made during the construction of the 5-storey 'Eyecatcher' at Swiss Building Fair 1999 in Basel. The 15 m tall Eyecatcher is composed of glass fibre reinforced polyester building elements. The primary load-carrying structure of the Eyecatcher consists of three parallel trapezoidal frames connected by wooden decks. The structural joints in the frames are bolted in order to facilitate dismantling of the structure after its first use. Furthermore, facade elements made of glass fibre reinforced polyester is presented. When considering past developments of (now) traditional materials, another one or two decades must pass until these new building methods will have been matured.
Towards material-adapted structural forms for composite fibre materials
Auf dem Weg zu materialgerechten Baustrukturformen für Faserverbundwerkstoffe
Keller, T. (Autor:in)
Techtextil, Techtextil Symposium, 8 ; 5 ; 1-6
1999
6 Seiten, 4 Quellen
Aufsatz (Konferenz)
Englisch
Towards Structural Forms for Composite Fibre Materials
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