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A new mitigation scheme to resist progressive collapse of RC structures

Alogla, KD, Weekes, L and Augusthus Nelson, L 2016, 'A new mitigation scheme to resist progressive collapse of RC structures' , Construction and Building Materials, 125 (30) , pp. 533-545.

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Abstract

Reinforced concrete structures may be vulnerable to progressive collapse due to lack of sufficient continuous reinforcement. In most guidelines, general structural integrity requirements to reduce progressive collapse have been introduced, but the design of structures against progressive collapse has not been a major consideration. A mitigation scheme is proposed to increase resistance against progressive collapse. This involves the provision of additional reinforcement bars in the mid-layer of reinforced concrete beams. In the research reported here, four specimens were designed and tested subject to quasi-static loading conditions for a column removal scenario. One test specimen was made with conventional steel reinforcement and three specimens were made with additional steel reinforcement at the mid depth of the beam. The quasi-static behaviour of the test specimens were converted to a dynamic representation using an energy balance approach to obtain the progressive collapse load. Test results show that the proposed scheme significantly improves the ductility and collapse load of concrete beams subject to a column removal scenario.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Construction and Building Materials
Publisher: Elsevier
ISSN: 0950-0618
Related URLs:
Funders: Iraqi cultural attaché in London-UK
Depositing User: L Augusthus Nelson
Date Deposited: 31 Aug 2016 14:54
Last Modified: 31 Aug 2016 14:54
URI: http://usir.salford.ac.uk/id/eprint/40028

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