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http://dx.doi.org/10.4334/JKCI.2011.23.1.031

Flexural and Punching Behaviors of Concrete Strengthening with FRP Sheets and Steel Fibers under Low-Velocity Impact Loading  

Min, Kyung-Hwan (School of Civil, Environmental and Architectural Engineering, Korea University)
Shin, Hyun-Oh (School of Civil, Environmental and Architectural Engineering, Korea University)
Yoo, Doo-Yeol (School of Civil, Environmental and Architectural Engineering, Korea University)
Yoon, Young-Soo (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Journal of the Korea Concrete Institute / v.23, no.1, 2011 , pp. 31-38 More about this Journal
Abstract
In this study, in order to observe the behaviors of fiber reinforced polymer (FRP) strengthened and steel fiber reinforced concrete specimens for impact and static loads, flexural and punching tests were performed. For the one-way flexural and two-way punching tests, concrete specimens with the dimensions of $50{\times}100{\times}350$ mm and $50{\times}350{\times}350$ mm were fabricated, respectively. The steel fiber reinforced concrete specimens showed much enhanced resistance on two-way punching of static and impact loads. In addition the FRP strengthening system provided the outstanding performance under a punching load. Because of a large tensile strength and toughness of ultra high performance concrete (UHPC), the UHPC specimens retrofitted with FRP showed marginally enhanced strength and energy dissipating capacity.
Keywords
low-velocity impact loading; punching; FRP sheet; steel fiber reinforced concrete; ultra high performance concrete;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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