CN216553125U - Accurate pre-buried auxiliary device of superimposed columns column base crab-bolt - Google Patents

Abstract

The application relates to an auxiliary device for accurate pre-embedding of superimposed column and column foot anchor bolts, and relates to the technical field of building construction. An anchor bolt hole for piercing the column foot anchor bolt is opened, and the angle steel bracket includes a plurality of vertical bars fixedly connected with the bottom reinforcement bars and a plurality of horizontal bars fixedly connected with the vertical bars at both ends. The present application uses the positioning plate and the angle steel bracket to limit and fix the anchor bolt of the column foot of the superimposed column, which improves the problem that the anchor bolt of the column foot of the CFST composite column will be offset during the concrete pouring process, and effectively improves the The installation accuracy of the foot anchors reduces the impact on the subsequent construction of stacked columns or steel columns. It ensures the progress of the project construction, reduces the cost of the project construction, and improves the stability and safety of the building structure.

Description

A kind of auxiliary device for accurate pre-embedding of superimposed column foot anchor bolts

technical field

The present application relates to the technical field of building construction, and in particular, to an auxiliary device for accurate pre-embedding of anchor bolts of superimposed columns and columns.

Background technique

The CFST superimposed column is referred to as the superimposed column, which is a column formed by superimposing the steel tube concrete in the middle of the section and the reinforced concrete outside the steel tube. The steel pipe can effectively restrain the radial deformation of the concrete inside and outside the steel pipe, and the concrete can effectively prevent the steel pipe from buckling inward or outward. It is suitable for engineering projects with limited section size and large column axial force.

Stacked columns are widely used in large buildings or super high-rise buildings. Generally, stacked columns use column anchors to achieve their own fixed support. The pre-embedded column anchors are used in many steel structures and super high-rise buildings. One of the important construction steps of superimposed columns.

The inventor found that in the process of concrete pouring and pre-embedding of the column anchor bolts, the impact and extrusion of the concrete often caused the offset of the column anchor bolts, which would affect the subsequent construction of stacked columns or steel columns. It not only delays the progress and cost of construction, but also affects the structural safety of the building.

Utility model content

In order to improve the problem that the anchor bolt of the column foot of the CFST composite column may be offset during the concrete pouring process, the present application provides an auxiliary device for accurate pre-embedding of the column foot anchor bolt of the composite column.

The accurate pre-embedding auxiliary device for a superimposed column foot anchor bolt provided by the present application adopts the following technical scheme:

An auxiliary device for accurate pre-embedding of superimposed column and column foot anchor bolts, comprising an angle steel bracket fixedly connected above the bottom reinforcement bars and a positioning plate fixedly connected to the angle steel bracket, the positioning plate is provided with a hole for passing through the column foot The anchor bolt hole of the anchor bolt, the angle steel bracket includes a plurality of vertical bars fixedly connected with the bottom reinforcement bars and a plurality of horizontal bars fixedly connected with the vertical bars at both ends.

By adopting the above technical solution, when the anchor bolts of the concrete composite columns are pre-buried, the angle steel brackets are hoisted to a predetermined position after the overall welding in the factory is completed. , and then pass the column foot anchor bolt through the anchor bolt hole, and fix the column foot anchor bolt with the positioning plate, and finally measure the position of the positioning plate, and fix the positioning plate with the angle steel bracket. In the present application, an angle steel bracket is fixed above the bottom steel bars, a positioning plate is installed on the angle steel bracket, and the anchor bolt of the column foot of the superimposed column is limited and fixed by the positioning plate and the angle steel bracket, thereby improving the column performance of the CFST superimposed column. The foot anchor bolt will be offset during the concrete pouring process, which effectively improves the installation accuracy of the column foot anchor bolt and reduces the impact on the subsequent construction of superimposed columns or steel columns. It ensures the progress of the project construction, reduces the cost of the project construction, and improves the stability and safety of the building structure.

Optionally, the number of the anchor bolt holes is set to be multiple, and they are evenly set on the positioning plate.

By adopting the above technical solution, by setting the anchor bolt holes in multiples, it is convenient to use a plurality of column foot anchor bolts to pass through the anchor bolt holes to be fixedly connected with the positioning plate, and further improve the fixing of the positioning plate and the angle steel bracket to the superimposed column Limit effect.

Optionally, the number of the positioning plates is set to at least two, and the axes of the plurality of positioning plates are arranged to overlap.

By adopting the above technical scheme, by setting the number of positioning plates to at least two, the plurality of positioning plates jointly limit and fix the column foot anchor bolts of the superimposed column, thereby improving the position limit of the column foot anchor bolts by the angle steel bracket and the positioning plate. The fixed stability reduces the risk of damage to the positioning plate due to excessive external force during the pouring process.

Optionally, the angle steel bracket further includes a plurality of diagonal braces, one end of any of the diagonal braces is fixedly connected to the vertical rod, and the other end is fixedly connected to the horizontal rod on the top of the vertical rod.

By adopting the above technical solution, the diagonal braces limit and fix the vertical rod and the horizontal rod at the top of the angle steel bracket, improve the stability of the connection between the vertical rod and the horizontal rod, improve the overall strength of the angle steel support, and reduce the risk of deformation of the angle steel support.

Optionally, the angle steel bracket further includes a plurality of scissor braces formed by intersecting two channel steels, and the ends of the scissor braces are fixedly connected to two adjacent vertical rods.

By adopting the above technical solution, the scissors brace is fixedly connected between two adjacent vertical bars of the angle steel bracket, and a triangle is formed between the scissors brace and the two vertical bars, and the stability of the triangle is used to improve the overall strength of the angle steel bracket, thereby improving its Fixed effect on overlapping columns.

Optionally, the angle steel bracket further includes a plurality of support channel steels, two ends of the support channel steel are respectively fixedly connected to the cross bar, and the positioning plate is fixedly connected to the support channel steel.

By adopting the above technical scheme, by arranging the support channel steel between the two horizontal bars, the positioning plate realizes the fixed connection between itself and the angle steel bracket through the support channel steel, and the support channel steel increases the connection between the positioning plate and the angle steel bracket. The connection contact area improves the stability of the connection between the positioning plate and the angle steel bracket, and reduces the risk of the positioning plate being detached from the angle steel bracket due to the action of the superimposed column.

Optionally, the support channel steel is connected to the positioning plate by welding.

By adopting the above technical solution, the support channel steel and the positioning plate are fixedly connected by welding, and the welding connection method makes the connection between the positioning plate and the paper support channel steel more simple and convenient, without the need for other additional fixing tools. The fixing of the positioning plate is realized, and the installation efficiency of the positioning plate on the support channel steel is improved.

Optionally, the bottom end of the vertical rod is fixedly connected with a column foot bottom plate, and the end surface of the column foot bottom plate away from the vertical rod is fixedly connected with the bottom reinforcement.

By adopting the above technical solution, by installing the column foot bottom plate above the bottom reinforcement bars, the column foot bottom plate increases the contact area between itself and the vertical rod. Improve the stability of the connection between the vertical pole and the bottom reinforcement.

To sum up, the present application includes at least one of the following beneficial technical effects:

In the present application, an angle steel bracket is fixed above the bottom steel bars, a positioning plate is installed on the angle steel bracket, and the anchor bolt of the column foot of the superimposed column is limited and fixed by the positioning plate and the angle steel bracket, thereby improving the column performance of the CFST superimposed column. The foot anchor bolt will be offset during the concrete pouring process, which effectively improves the installation accuracy of the column foot anchor bolt and reduces the impact on the subsequent construction of superimposed columns or steel columns. It ensures the progress of the project construction, reduces the cost of the project construction, and improves the stability and safety of the building structure;

By setting a plurality of anchor bolt holes, it is convenient to use a plurality of column foot anchor bolts to be fixedly connected to the positioning plate through the anchor bolt holes, and further improve the fixing and limiting effect of the positioning plate and the angle steel bracket on the superimposed column;

By fixing the scissor brace between two adjacent vertical bars of the angle steel bracket, a triangle is formed between the scissors brace and the two vertical bars, and the stability of the triangle is used to improve the overall strength of the angle steel bracket, thereby improving its fixation to the superimposed column Effect.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

Description of reference numerals: 1. Angle steel bracket; 11. Vertical rod; 12. Cross rod; 13. Diagonal support; 14. Scissor support; 15. Support channel steel; 2. Positioning plate; 3. Anchor bolt hole; 4. Column base plate.

Detailed ways

The present application will be further described in detail below with reference to FIG. 1 .

The embodiment of the present application discloses an auxiliary device for accurate pre-embedding of a superimposed column foot anchor bolt.

Referring to FIG. 1, an auxiliary device for accurate pre-embedding of superimposed column foot anchor bolts includes a column foot bottom plate 4 welded and connected to the bottom steel bar, an angle steel bracket 1 welded and connected to the column foot bottom plate 4 away from the end face of the bottom steel bar, and fixed on the angle steel. Positioning plate 2 above bracket 1.

In the embodiment of the present application, the number of the column bases 4 is 4, and the shape is a cube, the connection line between two adjacent column bases 4 forms a square, and the four column bases 4 are respectively located at the corners of the square, and are bound together. When the bottom steel bar is used, spot welding and reinforce the steel bar in and near the support leg area, and then weld the four column foot bottom plates 4 on the bottom steel bar. The bottom plate 4 of the column foot increases the welding area between the angle steel bracket 1 and the bottom steel bar, and improves the stability of the connection between the angle steel support 1 and the bottom steel bar.

The angle steel bracket 1 includes four vertical rods 11 welded and connected to the end face of the column base plate 4 away from the bottom steel bar, a horizontal rod 12 and a scissor brace 14 connected between two adjacent vertical rods 11, and a horizontal rod 12 and vertical rods 11. between the diagonal braces 13. The number of the vertical bars 11 is the same as the number of the column bases 4, which are 4; the two ends of the horizontal bars 12 are respectively welded and connected with the two adjacent vertical bars 11. Preferably, the number of the horizontal bars 12 is set to 16, And four are a group, which are divided into four layers and evenly arranged at the top and middle positions of the vertical rods 11 .

In the embodiment of the present application, the number of diagonal braces 13 is set to four, one end of the diagonal brace 13 is welded to the vertical rod 11 , and the other end is welded to the horizontal rod 12 at the top of the vertical rod 11 . The plurality of diagonal braces 13 act together on the vertical rod 11 and the horizontal rod 12 , which improves the stability of the connection between the vertical rod 11 and the horizontal rod 12 , that is, improves the stability of the angle steel bracket 1 . The number of scissor braces 14 is set to 8, and 4 are in a group, which are divided into two layers and welded on the vertical rod 11. The multi-layer cross bars 12 in the middle of the 11 are arranged at intervals. The scissors brace 14 further improves the stability of the angle steel bracket 1 .

Two support channel steels 15 are welded and connected to any two layers of horizontal bars 12 near the top of the vertical bar 11, and the support channel steel 15 is welded and connected with a positioning plate 2, and the support channel steel 15 increases the positioning plate 2. The welding area between the angle steel and the angle steel improves the fixing effect of the angle steel bracket 1 to the support channel steel 15 . The shape of the positioning plate is a circular ring, the number of positioning plates 2 is set to at least two, and the axes of the two positioning plates 2 are mutually overlapped and vertically arranged. Preferably, the number of positioning plates 2 is set to two, and a plurality of positioning plates 2 The stability of the positioning plate 2 for fixing and limiting the position of the stacking column is improved. The positioning plate 2 is provided with a plurality of anchor bolt holes 3, and the column foot anchor bolts are inserted into the anchor bolt holes 3. Preferably, the number of anchor bolt holes 3 on any positioning plate 2 is set to 16, and the number of anchor bolt holes 3 on the positioning plate 2 is set to 16. 2 is evenly arranged, and a plurality of anchor holes 3 are convenient for the positioning plate 2 to be inserted and fixed with more column foot anchor bolts, which improves the limiting and fixing effect of the positioning plate 2 on the superimposed column through the column foot anchor bolts. The positioning plate 2 and the angle steel bracket 1 are used to limit and fix the column foot anchor bolts of the superimposed column, which effectively improves the installation accuracy of the column foot anchor bolts and improves the concrete pouring process of the column foot anchor bolts of the CFST superimposed column. There will be an offset problem.

The implementation principle of an auxiliary device for accurate pre-embedding of superimposed column foot anchor bolts in the embodiment of the present application is as follows: when pre-embedding the column foot anchor bolts in concrete, the column foot bottom plate 4 is welded on the top of the bottom steel bars, and then the The factory-welded angle steel bracket 1 is hoisted to a suitable position, and then the vertical rod 11 of the angle steel bracket 1 is welded to the column base plate 4, and the anchor bolt is passed through the anchor bolt hole 3 opened on the positioning plate 2, and is connected with the positioning plate. The plate 2 is welded and connected, and finally the anchor bolts are measured with a total station, and then the positioning plate 2 and the support channel steel 15 are welded and fixed.

By arranging the angle steel bracket 1 above the bottom steel bars, using the diagonal brace 13 and the scissor brace 14 to reinforce the angle steel bracket 1 itself, and using the column base plate 4 to reinforce the connection between the angle steel bracket 1 and the bottom steel bar, the stability of the angle steel bracket 1 is improved. A plurality of positioning plates 2 are welded on the angle steel bracket 1 to limit the position of the column foot anchor bolts of the superimposed column, which improves the installation accuracy of the column foot anchor bolts, and at the same time improves the position of the column foot anchor bolts of the CFST superimposed column. Offset problems can occur during concrete pouring.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (8)

1. The utility model provides an accurate pre-buried auxiliary device of superimposed column base crab-bolt which characterized in that: angle iron bracket (1) and fixed connection including fixed connection in bottom reinforcing bar top are in locating plate (2) on angle iron bracket (1), offer anchor bolt hole (3) that are used for wearing to establish column base crab-bolt on locating plate (2), angle iron bracket (1) include with bottom reinforcing bar fixed connection many montants (11) and both ends with montant (11) fixed connection's many horizontal poles (12).

2. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the number of the anchor bolt holes (3) is set to be a plurality of, and the anchor bolt holes are uniformly arranged on the positioning plate (2).

3. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the number of the positioning plates (2) is at least two, and the axes of the positioning plates (2) are overlapped.

4. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the angle iron bracket (1) further comprises a plurality of inclined struts (13), one end of each inclined strut (13) is fixedly connected to the corresponding vertical rod (11), and the other end of each inclined strut is fixedly connected to the corresponding cross rod (12) at the top of the corresponding vertical rod (11).

5. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the angle iron bracket (1) further comprises a plurality of cross braces (14) formed by intersecting two channel steels, and the end parts of the cross braces (14) are fixedly connected with two adjacent vertical rods (11).

6. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the angle iron bracket (1) further comprises a plurality of supporting channel steels (15), two ends of each supporting channel steel (15) are fixedly connected with the cross rod (12), and the positioning plate (2) is fixedly connected with the supporting channel steels (15).

7. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 6 characterized in that: the supporting bracket channel steel (15) is connected with the positioning plate (2) in a welding mode.

8. The accurate pre-buried auxiliary device of a coincide post column base crab-bolt of claim 1 which characterized in that: the bottom end of the vertical rod (11) is fixedly connected with a column base bottom plate (4), and the end face of the vertical rod (11) is far away from the column base bottom plate (4) and is fixedly connected with a bottom layer steel bar.

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