Steel pipe concrete assembling type building concrete pouring device and pouring method thereof

Abstract

The invention aims at disclosing a steel pipe concrete assembling type building concrete pouring device and a pouring method thereof. The device comprises a column (1), exhaust holes (11) and a grouting opening (12) are formed in the column (1), the exhaust holes (11) are a plurality of through holes distributed in the column (1), the grouting opening (12) is a concrete input opening formed in the middle or the upper middle of the column (1), and a material guiding device (2) is arranged on the grouting opening (12) and is used for guiding concrete into the column (1) from the grouting opening (12); according to the device, high-speed pouring and quality monitoring can be achieved, air gaps are prevented from occurring, placement of concrete can pass through complex internal components and beam and column connecting portion partitions, during construction, a structural frame can achieve continuous work, is separated from concrete pouring, and does not affect each other, and the reliable guarantee is provided for safety and construction speed of steel pipe concrete buildings.

Description

Technical field [0001] The invention relates to a steel structure building equipment, in particular to a concrete pouring device for building columns and a pouring method thereof. Background technique [0002] Concrete-filled steel tube prefabricated buildings, especially light steel concrete structure building materials, can save about 30% of steel under the same conditions in the field of construction. They are collectively referred to as light steel structure buildings in the industry, and their structural applications have strong fire resistance, and It can improve the bearing capacity of buildings and can also be assembled at the factory production site. Therefore, it is widely used and is the main development direction of the future construction industrialization. At present, three methods are used for pouring concrete in steel pipes: pumping jacking pouring method, high-position drop without vibration method and vertical manual pouring method. The jack-up method is to inj...

AI Technical Summary

Problems solved by technology

The jacking method injects concrete into the lower opening of the steel pipe, and relies on the pressure of the delivery pump to lift the concrete to an appropriate height. This method is only suitable for steel pipes with thick walls and no components inside the pipe. Deformation; both the high-level drop method and the manual pouring method are poured downward from the top of the steel pipe. The high-level drop method has requirements for the drop height, construction environment and inner diameter of the steel pipe, and the construction quality varies with conditions; the manual pouring method is when pouring When it reaches a height of 2 meters, it will enter the vibration process and alternate construction. This method is very slow, has many artificial factors, and the quality depends on the experience of the workers.

The construction quality and speed of the above methods are difficult to improve

Due to the thin wall of the steel pipe concrete prefabricated building, in order to improve the mechanical strength, many internal components are added and there are many intersections. The traditional jacking method and the throwing method cannot be used. Only the manual pouring and tamping method can be used. The construction quality and speed harder to guarantee

In particular, the existing three methods can only assemble the frame layer by layer, and then pour concrete. When the construction of this layer is completed, the next layer can be assembled. The frame and concrete construction cannot be separated, and the structural frame assembly construction cannot be continuously operated.

The main reasons for these problems are as follows: First, the compactness of the concrete poured in the steel pipe cannot be observed, and the resulting voids can neither be seen nor measured. Based on experience in construction, the concrete can only be detected by a combination of ultrasonic instruments and manual knocking after it has solidified. , and remedies after finding the problem; second, the additional components inside the steel pipe will produce barriers when pouring concrete, and gaps are prone to appear at the joint parts; The concrete produces gaps and the combination is not dense. When the diameter of the column steel pipe is relatively small, the concrete cannot pass through the joint to reach the adjacent layer

The construction can only be done layer by layer. After the concrete pouring of the lower layer is completed, the columns, beams, floors, etc. of the upper layer can be installed. The construction speed is very slow, which affects the construction cost, and the quality is difficult to guarantee, which is likely to cause construction safety problems. Therefore, , resulting in the concrete-filled steel tube building not being able to achieve its due economic benefits and use effects

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