METHOD OF MANUFACTURING CONCRETE-FILLED STEEL TUBE, CONCRETE-FILLED STEEL TUBE, PRESSURE DEVICE, AND CONCRETE LEAKAGE RESTRICTOR

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a concrete-filled steel tube, which enables the pressurized concrete-filled steel tube to be manufactured by simple operations, the concrete-filled steel tube, a pressure device, and a concrete leakage restrictor.SOLUTION: A method of manufacturing a concrete-filled steel tube includes the steps of: infilling concrete 2 into a steel-pipe column 1; connecting a pressure device 3 to an upper part of the steel-pipe column 1; and pressurizing a top surface part of the concrete 2, which is infilled into the steel-pipe column 1 and which has fluidity, by the pressure device 3.SELECTED DRAWING: Figure 1