Increasing robustness of reinforced concrete structures under column loss scenario

Said Elkholy, Bilal El-Ariss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents a simple technique to enhance robustness of reinforced concrete (RC) plane frames to progressive collapse under column loss scenario. The response of the enhanced/mitigated RC frames is analyzed using fiber force-based finite element analysis and applying displacement-controlled nonlinear static pushdown at the location of failed column. The technique involves addition of external unbounded steel cables to the continuous beam in each floor at anchorage and deviator locations. The cables transfer the loads above the failed column to the anchorages and deviators that are assumed to perform as rigid arms, which in turn redistribute the loads to adjacent columns. The numerical model computes the frame progressive collapse robustness using push-down analysis to simulate a column elimination and estimate the effects of cable catenary action on the frame. Two-dimensional RC frame of six stories and four bays was adopted in the study. The numerical results demonstrate the prospect of increasing robustness of RC frames to progressive collapse using presented technique.

Original languageEnglish
Title of host publicationISEC 2017 - 9th International Structural Engineering and Construction Conference
Subtitle of host publicationResilient Structures and Sustainable Construction
EditorsEugenio Pellicer, Jose M. Adam, Victor Yepes, Amarjit Singh, Siamak Yazdani
PublisherISEC Press
ISBN (Electronic)9780996043748
DOIs
Publication statusPublished - 2017
Event9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction, ISEC 2017 - Valencia, Spain
Duration: Jul 24 2017Jul 29 2017

Publication series

NameISEC 2017 - 9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction

Other

Other9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction, ISEC 2017
Country/TerritorySpain
CityValencia
Period7/24/177/29/17

Keywords

  • Cable deviators
  • Catenary action.
  • External unbounded steel cables
  • Fiber element approach
  • Progressive collapse
  • RC plane frames

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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