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Parametric study and reliability-based evaluation of alternate load path design in reinforced concrete slabs

Didier Droogné (UGent) , Robby Caspeele (UGent) , Luc Taerwe (UGent) and Borja Herraiz
(2017) Engineering the Future. p.1106-1113
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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.
Keywords
Alternate load paths, membrane action, structural robustness, parametric study, reliability study, RC slabs

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Chicago
Droogné, Didier, Robby Caspeele, Luc Taerwe, and Borja Herraiz. 2017. “Parametric Study and Reliability-based Evaluation of Alternate Load Path Design in Reinforced Concrete Slabs.” In Engineering the Future, 1106–1113. Zürich, Switzerland: IABSE.
APA
Droogné, D., Caspeele, R., Taerwe, L., & Herraiz, B. (2017). Parametric study and reliability-based evaluation of alternate load path design in reinforced concrete slabs. Engineering the Future (pp. 1106–1113). Presented at the 39th IABSE Symposium - Engineering the Future, Zürich, Switzerland: IABSE.
Vancouver
1.
Droogné D, Caspeele R, Taerwe L, Herraiz B. Parametric study and reliability-based evaluation of alternate load path design in reinforced concrete slabs. Engineering the Future. Zürich, Switzerland: IABSE; 2017. p. 1106–13.
MLA
Droogné, Didier, Robby Caspeele, Luc Taerwe, et al. “Parametric Study and Reliability-based Evaluation of Alternate Load Path Design in Reinforced Concrete Slabs.” Engineering the Future. Zürich, Switzerland: IABSE, 2017. 1106–1113. Print.
@inproceedings{8533912,
  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.},
  author       = {Droogné, Didier and Caspeele, Robby and Taerwe, Luc and Herraiz, Borja},
  booktitle    = {Engineering the Future},
  isbn         = {978-3-85748-153-6},
  keywords     = {Alternate load paths,membrane action,structural robustness,parametric study,reliability study,RC slabs},
  language     = {eng},
  location     = {Vancouver, Canada},
  pages        = {1106--1113},
  publisher    = {IABSE},
  title        = {Parametric study and reliability-based evaluation of alternate load path design in reinforced concrete slabs},
  year         = {2017},
}