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2020 | OriginalPaper | Buchkapitel

Potential Approaches for Reinforcing Complex Concrete Structures with Integrated Flexible Formwork

verfasst von : Minu Lee, Jaime Mata-Falcón, Mariana Popescu, Philippe Block, Walter Kaufmann

Erschienen in: Second RILEM International Conference on Concrete and Digital Fabrication

Verlag: Springer International Publishing

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Abstract

Conventional construction of doubly-curved concrete structures is a time-, labour- and cost-intensive process. Flexible formworks have already been identified as a possible solution to produce such structures more efficiently. The KnitCrete technology developed at ETH Zurich uses 3D weft-knitted fabrics as stay-in-place formwork, which deliver multiple advantages over woven textiles due to their wider range of feasible geometries and possibility to include features and local material properties. The textile is initially coated with a fast-setting high-strength cement paste. The stiffened membrane is stable enough to serve as formwork for the final concrete layer. This paper discusses potential reinforcing strategies to guarantee structural safety and serviceability in KnitCrete structures. Possible approaches range from the use of the textile as a stay-in-place formwork as well as final reinforcement (by utilising high-strength fibrous materials such as aramid, glass or carbon fibre) to the implementation of geometric features, such as channels within the textile to guide conventional reinforcement or post-tensioning tendons. The feasibility and efficiency of the proposed reinforcement strategies have to be experimentally verified, for which a systematic methodology is proposed. Preliminary analyses of the experimental campaign show the beneficial effect of the knitted reinforcement on the cracking behaviour of the textile-concrete composite material. Additional research is needed to exploit the potential of possible hybrid solutions using short steel fibres, post-tensioning or linear steel or glass fibre reinforcement.
Literatur
1.
Zurück zum Zitat Lilienthal, L.W.G.: Fireproof Ceiling. US619769 (1899) Lilienthal, L.W.G.: Fireproof Ceiling. US619769 (1899)
2.
Zurück zum Zitat Farrar, D.: Construction of Roofs, Floors, Ceilings, and the Like. US2096629 (1937) Farrar, D.: Construction of Roofs, Floors, Ceilings, and the Like. US2096629 (1937)
3.
Zurück zum Zitat West, M.: The Fabric Formwork Book: Methods for Building New Architectural and Structural Forms in Concrete. Routledge, London, New York (2017) West, M.: The Fabric Formwork Book: Methods for Building New Architectural and Structural Forms in Concrete. Routledge, London, New York (2017)
10.
Zurück zum Zitat Wangler, T., Lloret, E., Reiter, L., Hack, N., Gramazio, F., Kohler, M., et al.: Digital concrete: opportunities and challenges. RILEM Tech. Lett. 1, 67–75 (2016) CrossRef Wangler, T., Lloret, E., Reiter, L., Hack, N., Gramazio, F., Kohler, M., et al.: Digital concrete: opportunities and challenges. RILEM Tech. Lett. 1, 67–75 (2016) CrossRef
14.
Zurück zum Zitat Steinle, A., Bachmann, H., Tillmann, M.: Bauen mit Betonfertigteilen im Hochbau. In: Bergmeister, K., Fingerloos, F., Wörner, J.-D. (eds.) Beton-Kalender 2016, pp. 237–467. Wilhelm Ernst & Sohn, Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin (2016). https://​doi.​org/​10.​1002/​9783433603413.​ch3 Steinle, A., Bachmann, H., Tillmann, M.: Bauen mit Betonfertigteilen im Hochbau. In: Bergmeister, K., Fingerloos, F., Wörner, J.-D. (eds.) Beton-Kalender 2016, pp. 237–467. Wilhelm Ernst & Sohn, Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin (2016). https://​doi.​org/​10.​1002/​9783433603413.​ch3
17.
Zurück zum Zitat Peled, A., Mobasher, B., Bentur, A.: Textile Reinforced Concrete. CRC Press, Taylor & Francis Group, Boca Raton (2017) CrossRef Peled, A., Mobasher, B., Bentur, A.: Textile Reinforced Concrete. CRC Press, Taylor & Francis Group, Boca Raton (2017) CrossRef
19.
Zurück zum Zitat Fernàndez Ruiz, M., Muttoni, A.: Building in a lighter and more sustainable manner: textile reinforced concrete for thin structural elements. Cemsuisse (2017) Fernàndez Ruiz, M., Muttoni, A.: Building in a lighter and more sustainable manner: textile reinforced concrete for thin structural elements. Cemsuisse (2017)
20.
Zurück zum Zitat Alvarez, M.: Einfluss des Verbundverhaltens auf das Verformungsvermögen von Stahlbeton, vol. 236. Birkhäuser, Basel (1998) Alvarez, M.: Einfluss des Verbundverhaltens auf das Verformungsvermögen von Stahlbeton, vol. 236. Birkhäuser, Basel (1998)
21.
Zurück zum Zitat Mata-Falcón, J., Bischof, P., Kaufmann, W.: Exploiting the potential of digital fabrication for sustainable and economic concrete structures. In: Wangler, T., Flatt, R.J. (eds.) First RILEM International Conference on Concrete and Digital Fabrication – Digital Concrete 2018, vol. 19, pp. 157–166. Springer, Cham (2019). https://​doi.​org/​10.​1007/​978-3-319-99519-9_​14 Mata-Falcón, J., Bischof, P., Kaufmann, W.: Exploiting the potential of digital fabrication for sustainable and economic concrete structures. In: Wangler, T., Flatt, R.J. (eds.) First RILEM International Conference on Concrete and Digital Fabrication – Digital Concrete 2018, vol. 19, pp. 157–166. Springer, Cham (2019). https://​doi.​org/​10.​1007/​978-3-319-99519-9_​14
24.
Zurück zum Zitat Marti, P., Alvarez, M., Kaufmann, W., Sigrist, V.: Tension chord model for structural concrete. Struct. Eng. Int. 8, 287–298 (1998) CrossRef Marti, P., Alvarez, M., Kaufmann, W., Sigrist, V.: Tension chord model for structural concrete. Struct. Eng. Int. 8, 287–298 (1998) CrossRef
Metadaten
Titel
Potential Approaches for Reinforcing Complex Concrete Structures with Integrated Flexible Formwork
verfasst von
Minu Lee
Jaime Mata-Falcón
Mariana Popescu
Philippe Block
Walter Kaufmann
Copyright-Jahr
2020
DOI
https://doi.org/10.1007/978-3-030-49916-7_67

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