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http://dx.doi.org/10.5762/KAIS.2013.14.12.6542

The Characteristics of Curvature Ductility Factor of Reinforced Concrete Hollow Section Beams  

Lee, Hyung-Joon (Dept. of Civil and Environmental Engineering, Hanbat National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.12, 2013 , pp. 6542-6549 More about this Journal
Abstract
In highly elevated piers and long span beams, a hollow section is often used to reduce the self-weight and increase the flexural rigidity of members. Numerical analysis was conducted to obtain the moment-curvature curves and curvature ductility factor for the RC hollow section beams under a range of hollow portion sizes and reinforcement conditions in the upper flange and web. The curvature ductility factor was constantly maintained until the hollow portion size($b_i/b_o/h_i/h_o$) was less than or equal to 0.5. The curvature ductility factor decreased sharply if ($b_i/b_o/h_i/h_o$) was 0.7 or more. The curvature ductility factor of the beam decreased if reinforcement was provided in the web of the RC hollow section beam. To obtain the same level of the ductility factor as the singly reinforced section, the reinforcement should be provided in the upper flange as much as the web reinforcement.
Keywords
Ductility factor; Numerical analysis; RC hollow section beam; Reinforcement condition;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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