Construction method for preset nut type steel-reinforced concrete compound pier template fixing device

Abstract

The invention discloses a preset nut type steel-reinforced concrete compound pier template fixing device and a construction method thereof. The fixing device mainly comprises a template, a nut, a screw rod, a PVC protecting pipe, an inner keel and an outer keel. The nut is welded on a steel column, the template surrounds the periphery of the steel column, the outer keel is arranged around the outer side of the template, the inner keel is arranged between the template and the outer keel, one end of the screw rod is connected with the nut by a thread, the PVC protecting pipe is sleeved on the screw rod, and the other end of the screw rod is fixed on the outer keel by a 3-shaped buckle. The invention has simple structure, low cost, and simple and convenient construction, solves the difficulty of fixing the steel-reinforced concrete compound pier template, is convenient for the field construction operation and lightens the workload and the labor intensity. The inner keel, the outer keel, the template and the screw rod can be repeatedly used so as to save the cost, ensure the construction safety of the template and improve the forming quality of the concrete column; meanwhile, the fixing device adopts common materials, thereby lowering the cost and being convenient for popularization and application.

Description

technical field [0001] The invention relates to a construction method of a formwork fixing device for a steel-concrete composite column, and belongs to the technical field of building construction. Background technique [0002] With the rapid development of urban construction, more and more super high-rise buildings have emerged in the city. In order to meet the requirements of height, space change and structural force, quite a few super high-rise buildings have adopted steel-concrete composite structures. The steel column is installed in the composite column, and the steel column cannot be perforated at will. When the formwork used to cast the column concrete is fixed, it is impossible to set the tension screw to bear the lateral pressure of the column formwork like the ordinary concrete column. It is labor-intensive and time-consuming to weld the half-stayed screw on the steel column to fix the formwork, and the screw cannot be used repeatedly. Therefore, it is of great p...

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Problems solved by technology

[0002]With the rapid development of urban construction, more and more super high-rise buildings have emerged in the city. In order to meet the requirements of height, space change and structural stress, quite Many super high-rise buildings adopt the steel-concrete composite structure. Since the steel-concrete composite columns are equipped with steel columns, the steel columns cannot be perforated at will. When the formwork for pouring column concrete is fixed, it is not possible to set tension screws like ordinary concrete columns. For the side pressure of the column formwork, the main method used before is to weld the double tension screw on the steel column at the construction site to fix the formwork. , and put forward a targeted construction method with very significant practical significance

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