Seismic Behaviour of Semi-Rigid Joints to Concrete Filled Steel Tubular Columns
This paper discussed the results of experiments on bolted moment connection joints of square or circular concrete filled steel tubular (CFST) columns and H-shaped steel beam using high-strength blind bolts under cyclic loading. The objective of this work was to study the seismic performance of the blind bolted flush endplate connections to CFST columns. The test parameters varied were the column section type and the thickness of the endplate. The feasibility of the proposed beam-column connection is successfully verified by the experiments. The test results showed that under cyclic loading the tested specimens displayed large rotation ductility capacities and could satisfy the request of the structural seismic design. When subjected to cyclic loading, most of failure modes of the tested joints are similar to those under monotonic loading. Moreover, the energy dissipation of the type joints is influenced by the column section type and the thickness of the endplate.
Jingsi Huo, Yan Xiao, Zongjin Li and Shuaib Ahmad
J.F. Wang and L. H. Han, "Seismic Behaviour of Semi-Rigid Joints to Concrete Filled Steel Tubular Columns", Key Engineering Materials, Vols. 400-402, pp. 693-699, 2009