An Experimental Study on the Structural Capacity of Carbon Tube Beams According to the Existence of Corrugation

내부의 주름설치에 따른 탄소섬유튜브 보의 성능에 대한 실험적 연구

An experimental investigation was conducted to estimate the flexural behavior of circular concrete beams confined by carbon sheet tube under the loading and unloading cycles. Six specimens were produced with different layers of carbon sheets and with or without corrugations inside of tubes. The experimental results represented that the load and displacement capacity are increased in the specimens which have increased layers of tube and have installed corrugations inside of tubes. In order to obtain enough capacity, tubes have to keep tubes at proper layers but it can not affect positively more than certain layers to increase the layers of tube. Therefore, appropriate estimation of structural member is needed to obtain enough capacity and displacement by means of proper carbon sheet direction and layers of tube.