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Detailing Technique to Enhance Resistance of RC Structures Against Progressive Collapse
Extreme events can potentially cause serve damage to structural systems, being one of the most concerning the local failure of primary vertical load bearing elements, since it can trigger a progressive collapse. Considering the risk of progressive collapse of framed RC structures, this paper presents the results of a numerical study carried out to analyze the effect of an innovative and inexpensive detailing technique to improve the performance of catenary action. The proposed technique consists of adding an additional layer of continuous longitudinal reinforcement placed in the core of the cross section of beams and girders. For the exact position of the additional reinforcement, three different heights were considered: 0.3, 0.5 and 0.7 of the beam’s depth. For this purpose, a numerical model was built using the ATENA 2D software. Results of an experimental campaign, consisting of loading tests of double span beams, were used for calibration purposes. Obtained results show that the maximum load carrying capacity of specimens was improved in 34%, 50% and 84%, in relation to the reference specimen, by introducing the additional layer of reinforcement at 0.3, 0.5 and 0.7 of the beam’s depth, respectively.
Detailing Technique to Enhance Resistance of RC Structures Against Progressive Collapse
Extreme events can potentially cause serve damage to structural systems, being one of the most concerning the local failure of primary vertical load bearing elements, since it can trigger a progressive collapse. Considering the risk of progressive collapse of framed RC structures, this paper presents the results of a numerical study carried out to analyze the effect of an innovative and inexpensive detailing technique to improve the performance of catenary action. The proposed technique consists of adding an additional layer of continuous longitudinal reinforcement placed in the core of the cross section of beams and girders. For the exact position of the additional reinforcement, three different heights were considered: 0.3, 0.5 and 0.7 of the beam’s depth. For this purpose, a numerical model was built using the ATENA 2D software. Results of an experimental campaign, consisting of loading tests of double span beams, were used for calibration purposes. Obtained results show that the maximum load carrying capacity of specimens was improved in 34%, 50% and 84%, in relation to the reference specimen, by introducing the additional layer of reinforcement at 0.3, 0.5 and 0.7 of the beam’s depth, respectively.
Detailing Technique to Enhance Resistance of RC Structures Against Progressive Collapse
Lecture Notes in Civil Engineering
Ilki, Alper (editor) / Çavunt, Derya (editor) / Çavunt, Yavuz Selim (editor) / Ghaderi, Peiman (author) / Cvaco, Eduardo (author) / Lucio, Valter (author) / Julio, Eduardo (author)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
2023-06-03
10 pages
Article/Chapter (Book)
Electronic Resource
English
Special Detailing Techniques to Improve Structural Resistance against Progressive Collapse
| Online Contents | 2014
Special Detailing Techniques to Improve Structural Resistance against Progressive Collapse
| British Library Online Contents | 2014
Progressive collapse of structures
| TIBKAT | 2009