Hysteretic performance of column-footing joints with steel composite hollow RC columns under cyclic load

Abstract

For structures such as buildings and bridges to have good performance, it is necessary for them to have suitable column-footing joints. A steel composite hollow RC column, which is a composite element, has an inner tube in the hollow section, and so it needs new types of connecting methods for the column-footing joint part. In this paper, three cases of new types of connecting methods have been proposed. They were evaluated through experimental and FE analysis studies. In addition, after a good connecting method for such column-footing joints was selected, it was then applied to large-scale test specimens, and its performance was verified and further evaluated.