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Effects of Core Concrete on the Buckling Behavior of Ultra-High Strength Reinforcement Bars

 Effects of Core Concrete on the Buckling Behavior of Ultra-High Strength Reinforcement Bars
Auteur(s): , , ,
Présenté pendant IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019, publié dans , pp. 2083-2088
DOI: 10.2749/newyork.2019.2083
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The buckling of reinforcement bars, which may result in abrupt load-capacity degradation of reinforced concrete (RC) components, is definitely a critical issue in structures exposed to severe earth...
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Détails bibliographiques

Auteur(s): (Department of Architecture, Kobe University)
(Department of Bridge Engineering, Southwest Jiatong University)
(Department of Architecture, Kobe University)
(Department of Architecture, Kobe University)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019
Publié dans:
Page(s): 2083-2088 Nombre total de pages (du PDF): 6
Page(s): 2083-2088
Nombre total de pages (du PDF): 6
DOI: 10.2749/newyork.2019.2083
Abstrait:

The buckling of reinforcement bars, which may result in abrupt load-capacity degradation of reinforced concrete (RC) components, is definitely a critical issue in structures exposed to severe earthquakes. In the present study, six square RC columns were fabricated and tested under monotonic compression to investigate the influence of the core concrete on the buckling-resistant behavior of ultra-high strength reinforcement bars. All columns had a 150-mm square section and were 300 mm in height. The spacing of lateral hoops was selected as 50 mm (40), 75 mm (60), and 100 mm (80), respectively. The experimental results indicated that the core concrete strongly affected the buckling of ultra-high strength reinforcement bars and should be carefully considered in the seismic design of RC components reinforced by the ultra-high strength bars.