The utility model relates to a steel -pipe column especially relates to a major diameter thick -wall steel pipe post, belongs to the steel construction field. , which comprises a steel pip, the outerwall of steel pipe be equipped with concrete beam subassembly and steel corbel, the concrete beam subassembly include that a pair of concrete beam who presents lower extreme interval distribution indulges the muscle connecting plate, a pair of concrete beam indulge be equipped with between the muscle connecting plate with steel pipe fixed reinforcing bar roof beam cantilever beam section mutually,the upper portion of the reinforcing bar roof beam cantilever beam section concrete beam that is equipped with a plurality of looks interval distribution indulge the muscle and connect the riser. A method of major diameter thick -wall steel pipe post compact structure, the atress performance is outstanding, the preparation the science.