Study on the Crack Shape of Concrete Exterior Beam-Column Joints Confined by Carbon Sheet Tube

카본 시트 튜브로 구속된 콘크리트 외부 보-기둥 접합부의 균열 양상에 대한 연구

The purpose of this study is to experimentally investigate the structural performance of concrete exterior beam-column joints confined by carbon sheet tube. Four specimens were produced with different numbers of carbon sheet and the other specimen was produced with reinforced concrete. A hydraulic dynamic actuator with 30tonf capacity was used to cyclic lateral loading test. The experimental results represent that the numbers of carbon sheet have an influence the load and displacement capacity. However, the bond length of carbon sheets for connecting beam and column has to be considered to improve the capacity of joint.