Theoretical assessment of progressive collapse capacity of reinforced concrete structures

Alogla, KD; Weekes, L; Augusthus Nelson, L

Abstract

The progressive collapse behaviour of reinforced concrete (RC) structures requires consideration of material and
geometric non-linearity, concrete crushing and rebar fracture. Compressive arch action (CAA) and catenary action
(CTA) are the main resisting mechanisms against progressive collapse following a column loss. Hence, many studies
have concentrated on the development of CAA and CTA in RC beams, but without considering the effect of bar
fracture and the reduction in beam effective depth due to concrete crushing. Taking these additional factors into
account, an analytical model to predict the structural behaviour of RC beams under a column removal scenario was
developed. The proposed model was evaluated and validated with the available experimental results. The evaluation
and validation indicate that the proposed model can provide a reliable assessment of RC beam capacity against
progressive collapse.

Citation

Alogla, K., Weekes, L., & Augusthus Nelson, L. (2017). Theoretical assessment of progressive collapse capacity of reinforced concrete structures. Magazine of Concrete Research, 69(3), 145-162. https://doi.org/10.1680/jmacr.16.00319

• Journal Article Type: Article
• Acceptance Date: Oct 5, 2016
• Online Publication Date: Nov 10, 2016
• Publication Date: Feb 1, 2017
• Deposit Date: Nov 28, 2016
• Publicly Available Date: Nov 28, 2016
• Journal: Magazine of Concrete Research
• Print ISSN: 0024-9831
• Electronic ISSN: 1751-763X
• Publisher: Thomas Telford
• Volume: 69
• Issue: 3
• Pages: 145-162
• DOI: https://doi.org/10.1680/jmacr.16.00319
• Publisher URL: http://dx.doi.org/10.1680/jmacr.16.00319
• Related Public URLs: http://www.icevirtuallibrary.com/doi/pdf/10.1680/jmacr.16.00319