Steel pipe concrete pillar concrete jacking pouring device and construction technique thereof

Abstract

The invention relates to a steel pipe concrete pillar concrete jacking pouring device and a construction technique thereof. The device comprises a horizontal conveying pipe, and the horizontal conveying pipe is connected with a vertical conveying pipe arranged in a steel pipe pillar through a connecting elbow; a central axis of the vertical conveying pipe is overlapped with the central axis of the steel pipe pillar; a horizontal end opening of the connecting elbow is extended out at the outside of the steel pipe pillar and connected with the horizontal conveying pipe together through a plug board valve; a vertical end opening of the connecting elbow is arranged at inside of the steel pipe pillar and connected with the bottom part of the vertical conveying pipe; the connecting elbow is connected with the steel pipe pillar together, the top part of the steel pipe pillar is provided with an overflow pipe; the horizontal conveying pipe, the connecting elbow and the vertical conveying pipe are connected mutually and formed to be a sealed and leakage-free delivery channel. The conveying channel formed by the horizontal conveying pipe, the connecting elbow and the vertical conveying pipe can bear big pumping impact. The device can effectively reduce and even avoid uncompact concrete in the steel pipe pillar, thereby greatly improving the construction efficiency.

Description

technical field [0001] The invention belongs to the technical field of concrete jacking and pouring, and in particular relates to a concrete jacking and pouring device for steel pipe concrete columns and a construction process thereof. Background technique [0002] In industrial construction, especially in the construction of large-scale industrial plants, more and more concrete-filled steel tube column structures are used to replace traditional steel column structures. Compared with steel column structures, steel tube column concrete structures maintain similar self-weight and bearing capacity Under the same conditions, steel is greatly saved, which is in line with the national energy-saving and emission-reduction policy; compared with ordinary reinforced concrete structures, the steel pipe column concrete structure occupies less space and its own weight is smaller under the condition of maintaining similar steel consumption or the same bearing capacity. , effectively reduc...

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Problems solved by technology

[0003] However, in the current concrete jacking and pouring construction process of steel pipe concrete columns, because the inner diameter of the steel pipe column is much larger than the inner diameter of the pouring pipe, the concrete entering the steel pipe column from the pouring pipe often suffers due to the decrease of the flow velocity and the flow direction. Inconsistencies can easily cause the concrete in the steel pipe column to not be compacted. When this happens, it is often time-consuming and laborious to reinforce, which not only increases the workload, but also increases the difficulty of construction.

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