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Development of extremely thin prefabricated concrete façade elements

 Development of extremely thin prefabricated concrete façade elements
Author(s): ORCID,
Presented at IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, published in , pp. 2155-2163
DOI: 10.2749/stockholm.2016.2163
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Story-high, prefabricated concrete façade elements with 6-8 cm thick outer layers were frequently used in building construction in the 1960/70s. In current construction and rehabilitation, they are...
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Bibliographic Details

Author(s): ORCID (Institute of Construction and Environmental Technologies iTEC, School of Engineering and Architecture Fribourg HEIA-FR, University of Applied Sciences of Western Switzerland HES-SO)
(Project development, Element AG, Tafers, CH)
Medium: conference paper
Language(s): English
Conference: IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016
Published in:
Page(s): 2155-2163 Total no. of pages: 9
Page(s): 2155-2163
Total no. of pages: 9
Year: 2016
DOI: 10.2749/stockholm.2016.2163
Abstract:

Story-high, prefabricated concrete façade elements with 6-8 cm thick outer layers were frequently used in building construction in the 1960/70s. In current construction and rehabilitation, they are much thicker (12-15 cm) or economically non-competitive, due to significantly increased concrete cover or the required use of stainless steel reinforcement, respectively, for durability. Additionally, these elements are placed further away from the support structure, owing to significantly increased requirement in thermal insulation. The outer shell of a façade element of the late 1960s was 4-8 cm away from the support structure while today, it is placed at a distance of 16-32 cm. The potential of replacing steel bars in prefabricated concrete façade elements by non-metallic glass-fiber reinforced polymer (GFRP) reinforcement was explored experimentally in a collaborative research project, targeting 5 cm thin elements and also requiring to test an associated new anchor system.

Keywords:
failure mode reinforced concrete conceptual design prefabrication wind loads composites full-scale testing façade elements deflection limits anchor systems