EXPERIMENTAL STUDY ON BRACKET-TYPE JOINTS OF CONCRETE FILLED STEEL TUBULAR COLUMN AND SECTION-STEEL CONCRETE BEAM

Super high-rise steel structure building with concrete filled steel tubular column is a commonly used structure type.the beam connecting with concrete filled steel tubular column has several types,as steel beam,reinforced concrete beam,concrete beams,etc.There are less researches for joints between steel tubular concrete column and steel reinforced concrete beam.In this paper,the 1:2 scale experimental study for bracket-type joints of steel tubular concrete column and reinforced concrete beam was executed,at the same time these joints were designed by ANSYS finite element analysis software.Combined the experimental results with those of finite element analysis,the stress characteristics of these joints were also analyzed,the results showed that the joint had good ultimate bearing capacity and seismic performance.