Parametric study and reliability-based evaluation of alternate load path design in reinforced concrete slabs
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Bibliographic Details
| Author(s): |
Didier Droogné
(Ghent University, Ghent, Belgium)
Robby Caspeele 
(Ghent University, Ghent, Belgium)
Luc Taerwe (Ghent University, Ghent, Belgium) Borja Herraiz (Dr. Lüchinger + Meyer Bauingenieure AG, Zürich, Switzerland) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 1106-1113 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.1106 | ||||
| Abstract: |
In normal design situations, RC slabs are in general designed using small deformation theories while taking into account linear elastic behaviour. However as indicated by previous large structural failures the importance of considering the behaviour of RC slabs at large deformations is as important. Based on multiple experimental studies it is clear that RC slabs can develop alternate load paths and consequently generate a significant strength reserve by membrane action once large deformations occur due to the removal of a load-bearing element. This strength reserve is of major importance as this could result in an important increase of the structural robustness for RC buildings. In this contribution a parametric study with a numerical model is performed to investigate the design possibilities on membrane action in RC slabs. Next the reliability of the developed membrane action and alternate load path is calculated for a reference case which is subjected to the removal of a central support considering the static and pseudo-static behaviour. |
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| Keywords: |
membrane action structural robustness parametric study alternate load path reliability study RC slabs
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