Abstract
Shells are elegant and efficient structures, but also expensive to construct and therefore very few are being built currently. This paper will present a procedure to produce shells made of ultra-high performance fibre reinforced concrete (UHPFRC). Deformation is used to turn plane elements into shells. This paper will also address sandwich-elements with UHPFRC top layers which increase the stability of shells under compression and allow the incorporation of the required heat insulation. Finally, the application for the roof of a research heat storage-unit at the University of Stuttgart will be presented. It covers an area of about 10 × 12 m, has a rise of about 1.50 m and consists of sandwich elements out of UHPFRC. In order to reduce the cost for formwork the sandwich elements will be cast in plane and deformed into shape after the hardening of the concrete. Then the different elements will be fixed at the supports. This construction method may only be used with very thin and ductile concrete elements; further prerequisites are the fine structure of the material and high strength. This method allows for the construction of curved shell structures at relatively low cost and hopefully will further promote the construction of concrete shells.
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References
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© 2007 Springer-Verlag Berlin Heidelberg
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Lichtenfels, A. (2007). Ultra-high performance concrete for the roof of a research hot water storage. In: Grosse, C.U. (eds) Advances in Construction Materials 2007. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72448-3_6
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DOI: https://doi.org/10.1007/978-3-540-72448-3_6
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