Steel column internal flow stopping device for concrete-filled steel tube jacking and using method thereof

Abstract

The invention discloses a steel column internal flow stopping device for concrete-filled steel tube jacking and a using method thereof. The steel column internal flow stopping device comprises a flowstopping plate attached to the inner wall of a steel column, wherein lubricating sealing layers are arranged on the flow stopping plate and the inner wall of the steel column; a flow stopping plate through hole is formed in the flow stopping plate; two positioning nuts are fixed to the side, close to the lubricating sealing layers, of the flow stopping plate; the positioning nuts are clamped in long circular holes formed in the steel column; bolt rods with the length larger than the wall thickness of the steel column are screwed in the positioning nuts; the bolt rods extend to the outer side of the steel column through the long circular holes; adjusting nuts are further installed on the bolt rods positioned on the outer side of the steel column; the outer diameter of the adjusting nuts islarger than the width of the long circular holes; and the flow stopping plate is fixed to the inner wall of the steel column through the cooperation of the adjusting nuts and the bolt rods so as to limit free sliding of the flow stopping plate. The device is simple, convenient to operate and low in cost, after the bolt rods and the adjusting nuts are jacked, the adjusting nuts are tightened, and when the long circular holes are subjected to repair welding, the adjusting nuts can be detached and can be repeatedly used for other parts of engineering.

Description

technical field [0001] The invention relates to the technical field of steel pipe concrete jacking construction, in particular to a steel column inner flow stop device for jacking up steel pipe concrete and a method for using the same. Background technique [0002] Concrete-filled steel pipe refers to the structural member formed by filling concrete in the steel pipe, and the steel pipe and its core concrete can bear the external load together. , The concrete-filled steel tube concrete jacking construction process is a concrete vibration-free construction method that uses the pumping pressure of the concrete delivery pump to pour self-compacting concrete from the bottom of the steel column until the entire steel column is filled. In recent years, with the continuous acceleration of my country's urbanization process and the continuous improvement of its international status, various large-scale international conferences and business exchange activities have been registered in...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to provide a steel column internal flow stop device for concrete-filled steel tube jacking and its use method, to solve the working efficiency of the ram type, wedge type, and hoop type in the traditional construction technology. Low cost, large mechanical investment and high risk factor

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