Experimental investigation of flexural behavior of T-section concrete-filled steel tubular composite members

This paper puts forward a new type T-section concrete-filled steel tubular composite member which was welded directly by two rectangular steel tubes, presents an experimental study on flexural behavior of 20 T-section concrete-filled steel tubular composite members and studies their pure bending and compress-bending properties. The analysis is conducted about the effects of steel ratio, shear span ratio, section dimension and axial compression ratio etc, meanwhile the flexural behavior between the new type and the traditional T-section concrete-filled steel tubular composite member is compared.