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Assessment of current design guidelines for vertical ties in relation to progressive collapse of RC structures

Didier Droogné (UGent) , Wouter Botte (UGent) and Robby Caspeele (UGent)
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Abstract
Despite the recent amount of theoretical and technological developments, structural robustness is still an issue of controversy being underlined by several structural failures in the past. Current design codes point out different strategies, among which strategies to limit damages due to the collapse of a load-bearing member by applying prescriptive design and detailing mies. For example for consequence class 2 structures EN1991-1-7 defines a risk class CC2b for which also vertical ties are required. Flowever, the background of the design values of vertical ties in current codes is not clear and their adequacy should be validated. Moreover effects such as membrane action and Vierendeel action are important to consider when assessing structural robustness and are difficult to incorporate when applying only traditional design methodologies. To this extent a set of numerical simulations have been executed in this contribution in order to verify the Progressive collapse behaviour of RC frames including the response of the vertical ties in the columns.
Keywords
Structural robustness, reinforced concrete frames, progressive collapse, prescriptive tie forces

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MLA
Droogné, Didier, Wouter Botte, and Robby Caspeele. “Assessment of Current Design Guidelines for Vertical Ties in Relation to Progressive Collapse of RC Structures.” IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management. Zurich: IABSE, 2019. 226–235. Print.
APA
Droogné, D., Botte, W., & Caspeele, R. (2019). Assessment of current design guidelines for vertical ties in relation to progressive collapse of RC structures. IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management (pp. 226–235). Presented at the IABSE Symposium 2019 Guimarães, Zurich: IABSE.
Chicago author-date
Droogné, Didier, Wouter Botte, and Robby Caspeele. 2019. “Assessment of Current Design Guidelines for Vertical Ties in Relation to Progressive Collapse of RC Structures.” In IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management, 226–235. Zurich: IABSE.
Chicago author-date (all authors)
Droogné, Didier, Wouter Botte, and Robby Caspeele. 2019. “Assessment of Current Design Guidelines for Vertical Ties in Relation to Progressive Collapse of RC Structures.” In IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management, 226–235. Zurich: IABSE.
Vancouver
1.
Droogné D, Botte W, Caspeele R. Assessment of current design guidelines for vertical ties in relation to progressive collapse of RC structures. IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management. Zurich: IABSE; 2019. p. 226–35.
IEEE
[1]
D. Droogné, W. Botte, and R. Caspeele, “Assessment of current design guidelines for vertical ties in relation to progressive collapse of RC structures,” in IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management, Guimarães, 2019, pp. 226–235.
@inproceedings{8619369,
  abstract     = {Despite the recent amount of theoretical and technological developments, structural robustness is still an issue of controversy being underlined by several structural failures in the past. Current design codes point out different  strategies, among which strategies to limit damages due to the collapse of a load-bearing member by applying prescriptive design and detailing mies. For example for consequence class 2 structures EN1991-1-7 defines a risk class CC2b for which also vertical ties are required. Flowever, the background of the design values of vertical ties in current codes is not clear and their adequacy should be validated. Moreover effects such as membrane action and Vierendeel
action are important to consider when assessing structural robustness and are difficult to incorporate when applying only traditional design methodologies. To this extent a set of numerical simulations have been executed in this contribution in order to verify the Progressive collapse behaviour of RC frames including the response of the vertical ties in the columns.},
  author       = {Droogné, Didier and Botte, Wouter and Caspeele, Robby},
  booktitle    = {IABSE Symposium 2019 Guimarães : Towards a Resilient Built Environment - Risk and Asset Management},
  isbn         = {9783857481635},
  keywords     = {Structural robustness,reinforced concrete frames,progressive collapse,prescriptive tie forces},
  language     = {eng},
  location     = {Guimarães},
  pages        = {226--235},
  publisher    = {IABSE},
  title        = {Assessment of current design guidelines for vertical ties in relation to progressive collapse of RC structures},
  year         = {2019},
}