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Preset nut type steel-reinforced concrete compound pier template fixing device and construction method thereof

A formwork fixing and concrete technology, which is used in formwork/formwork/work frame, on-site preparation of building components, construction, etc. It can solve problems such as the inability to pull the side pressure of the screw, the random perforation of the shaped steel column, and the inability of the screw to be used in turnover, etc. problems, to ensure the safety of formwork construction, save screw materials, and facilitate on-site construction operations.

Active Publication Date: 2009-09-23
JIANGSU HUAJIAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Preset nut type steel-reinforced concrete compound pier template fixing device and construction method thereof
  • Preset nut type steel-reinforced concrete compound pier template fixing device and construction method thereof
  • Preset nut type steel-reinforced concrete compound pier template fixing device and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The pre-installed nut type steel concrete composite column formwork fixing device in this example is used for the steel column as a round steel pipe, such as figure 1 As shown, the specific construction steps during construction are:

[0063] 1. The shaped steel column 6 is made of round steel pipe, and the nut 1 is made of an elongated nut. Position the nut 1 on the round steel pipe column and set out the wire. Welding personnel weld the nut in the direction of the column axis. The weld seam height is 4mm, and the position error is controlled within 3mm. . The gap between the nut 1 and the steel pipe wall is relatively large, and the welding seam height is 4mm.

[0064] 2. Before installing the formwork, screw the screw 2 into the nut 1 with a wrench, put the PVC pipe 7 on the screw 2, and adjust the direction.

[0065] 3. Determine the opening position of the formwork according to the position diagram of the steel pipe column nut, draw the opening diagram of the for...

Embodiment 2

[0069] The pre-installed nut type steel column concrete composite column template fixing device of this embodiment is used for H-shaped and cross-shaped steel columns, such as figure 2As shown, the basic structure is the same as that of Example 1, except that the preset nut 1 is pre-welded on the 6-column web of the shaped steel column. Before the formwork is installed, the screw 2 is screwed into the nut 1 with a wrench, and the screw 2 is covered with PVC. Pipe 7, install column formwork 3, inner keel wooden side 4, outer keel double steel pipe 5 successively again.

[0070] Except above-mentioned embodiment, the present invention also can be the concrete combination column formwork fixing of the shaped steel column of other structural forms, construction implementation.

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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 formwork fixing device for a steel-concrete composite column, and also relates to a construction method thereof, belonging 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. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G13/02
Inventor 吴碧桥朱学农唐兵王爱军张传捷
Owner JIANGSU HUAJIAN CONSTR
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