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 50×100×350 mm and 50×350×350 mm were fabricated. The steel fiber reinforced concrete specimens showed much enhanced resistance on two-way punching of static and impact loads. Also, the FRP strengthening system provided the outstanding performance under punching resistance. Because of large tensile strength and toughness of ultra high performance concrete (UHPC) in itself, the UHPC specimens retrofitted with FRP showed marginally enhanced strength and energy dissipating capacity.
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