A prefabricated concrete octagonal column assembly device and its installation method

Abstract

The invention relates to the technical field of assembling a large prefabricated member, and particularly relates to a prefabricated concrete octagonal column assembling device and discloses an assembling method of a prefabricated concrete octagonal column. The assembling method comprises the following steps: a. setting up a measurement control frame at the outer periphery of an octagonal column embedded part; b. setting up a support frame connected with a scaffold; c. prefabricating the prefabricated concrete octagonal column; d. hoisting the prefabricated concrete octagonal column; and e. controlling the perpendicularity of the prefabricated concrete octagonal column. The problem that the centrifugal prefabricated concrete column cannot be embedded and hoisted can be effectively solved, and a clasp and foot pads can be repeatedly utilized; and the use amount of cranes can be saved, the site limiting problem for positioning cables can be avoided, the hoisting accuracy can be improved, the problem existing in traditional construction can be effectively solved, the assembling efficiency can be improved, the construction period can be shortened, and the construction cost can be saved.

Description

technical field [0001] The invention relates to the technical field of installation of large prefabricated components, in particular to an assembly device for a precast concrete octagonal column, and discloses an installation method for a precast concrete octagonal column. Background technique [0002] For the installation of super-long and super-large precast concrete columns, the existing construction technology is to hoist by pre-embedded lifting points on the precast concrete columns, and use two cranes to lift at both ends at the same time for components with high protection requirements to avoid damaging the column when one end touches the ground foot. Verticality control is carried out during the installation process using the cable wind rope. To lengthen the components, reserve a section of space between the two components, and then use cast-in-place concrete to pour the reserved area, so that the various components are connected. The embedded parts of the foundati...

AI Technical Summary

Problems solved by technology

[0005] 2. Lifting point design: The traditional method uses embedded lifting rings, which are quick to set up and easy to operate, but for prestressed centrifugal prefabricated components, it is impossible to place embedded lifting rings and lifting lugs;

[0006] 3. Lifting method: Lifting from one end is easy to damage the column foot, and lifting with double cranes takes up a lot of space and high mechanical costs;

[0007] 4. Adjust the verticality control with the cable wind rope: the operation is simple and effective, but it is necessary to set the pulling node on the existing structure, and some projects do not have the conditions

And because the components are super long, a larger site is required to ensure the angle of the cable wind rope

The cable wind rope is easy to conflict with the overall scaffolding or other components, which will affect the force of the cable wind rope at the slightest level, and seriously affect the safety of the overall scaffolding;

[0008] 5. The traditional method of component connection needs to set the connection head at the node of the beam and column

For components with no beam-column joints in the middle and the surface of the prefabricated component directly used as a decorative surface, the traditional connection method cannot solve this problem.

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