콘크리트충전 강합성교각의 구조적 거동에 관한 연구 = The Study on the Structural Behavior of Concrete-filled Composite Piers

다국어 초록 (Multilingual Abstract)

The concrete-filled composite column can be adopted to assure mainly large energy-absorption capacity and enhancement of strength and stiffness due to mutual confinement between the steel plate and filled-in concrete when it is used as bridge piers. Moreover, the use of partially concrete-filled composite piers offer reduction of the weight of the pier itself and reducing construction time. In this study, a set of tests has been conducted on long columns subjected to constant axial load and cyclic lateral load. The width-thickness ratio, slenderness ratio, filled-in concrete length and lateral load history were taken as main test parameters.
The optimum filled-in concrete length has been proposed. Ductility index estimated for the seismic design showed that the composite piers could be used as a very efficient earthquake-resistant structural member.