A prefabricated column reserved steel bar positioning device

Abstract

The utility model discloses a prefabricated column reserved steel bar positioning device, which is arranged on the reserved steel bar at the upper end of the prefabricated column structure, and includes a first positioning device and a second positioning device. The first positioning device is arranged below the second positioning device. The first positioning device includes a steel bar frame composed of steel bars, and the edges of the steel bar frame form steel bar positioning holes. The second positioning device includes a hollow steel plate and a hollow bolt. Sliding grooves are evenly opened on the hollow steel plate. Some hollow bolts are vertically penetrated in the sliding grooves, and the remaining hollow bolts directly pass through the hollow steel plate vertically. The lower end of the hollow bolt is limited by a nut. The positions of the steel bar positioning hole and the hollow bolt correspond to the positions of the reserved steel bars respectively. The reserved steel bars pass through the steel bar positioning hole and the hollow bolt in sequence to achieve positioning. The utility model is provided with two positioning devices for positioning, which effectively controls the positioning accuracy of the reserved steel bars of the prefabricated column, and greatly improves the success rate of the one-time installation of the prefabricated column.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a prefabricated column reserved steel bar positioning device. Background Art

[0002] The precast column hoisting is to lift the precast column by hoisting equipment, drop the precast column to the predetermined installation position, insert the grouting sleeve at the bottom of the precast column into the reserved steel bars at the installation position one by one, and then fix the bottom of the precast column by grouting. However, during the construction of cast-in-place structural floor slabs, the reserved steel bars of the precast column are often easily affected by the interference of steel bar binding and concrete pouring, resulting in the deviation of the reserved steel bars of the precast column and the inaccurate spacing of the reserved steel bars.

[0003] In this case, it is particularly important to accurately control the positioning of the reserved steel bars of the prefabricated columns to ensure the success rate of the subsequent prefabricated columns being installed in one go. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a device for positioning reserved steel bars of prefabricated columns.

[0005] The specific technical solutions are as follows:

[0006] A prefabricated column reserved steel bar positioning device is arranged on the reserved steel bar at the upper end of the prefabricated column structure, and includes a first positioning device and a second positioning device. The first positioning device is arranged below the second positioning device. The first positioning device includes a steel bar frame composed of steel bars, and the edges of the steel bar frame form steel bar positioning holes. The second positioning device includes a hollow steel plate and a hollow bolt. Sliding grooves are evenly opened on the hollow steel plate. Some hollow bolts are vertically penetrated in the sliding grooves, and the remaining hollow bolts directly and vertically pass through the hollow steel plate. The lower end of the hollow bolt is limited by a nut. The positions of the steel bar positioning hole and the hollow bolt correspond to the positions of the reserved steel bars respectively. The reserved steel bars pass through the steel bar positioning hole and the hollow bolt in turn to achieve positioning.

[0007] Furthermore, the first positioning device is arranged in the cast-in-place structure at the top of the prefabricated column structure, and the second positioning device is arranged at the upper end of the reserved steel bars.

[0008] Furthermore, the thickness of the hollow steel plate is 5 mm, the steel bar positioning hole is square, and the hole diameter of the hollow bolt is 2 mm larger than the reserved steel bar diameter.

[0009] Furthermore, longitudinal reinforcement is provided inside the prefabricated column structure, and a grouting sleeve for inserting a reserved reinforcement of another prefabricated column structure is provided at the bottom of the longitudinal reinforcement.

[0010] Further, the bottom of the grouting sleeve is flush with the bottom of the prefabricated column structure.

[0011] The beneficial effects of the utility model are:

[0012] 1) The utility model is provided with two positioning devices for positioning, which effectively controls the positioning accuracy of the reserved steel bars of the prefabricated columns and greatly improves the success rate of the one-time installation of the prefabricated columns;

[0013] 2) The hollow bolt of the second positioning device of the utility model can slide, so that the positioning device can be used for positioning different prefabricated columns, which effectively improves its applicability and has good economic effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the first positioning device of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the second positioning device of the utility model.

[0017] In the figure: 1. prefabricated column structure; 11. reserved steel bars; 12. cast-in-place structure; 13. longitudinal bars; 14. grouting sleeve; 2. first positioning device; 21. steel bar frame; 211. steel bar positioning hole; 3. second positioning device; 31. hollow steel plate; 311. sliding groove; 32. hollow bolt. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the drawings in the specification, but the protection scope of the utility model is not limited thereto.

[0019] like Figure 2 As shown, the first positioning device 2 includes a steel bar frame 21 formed of steel bars, and a plurality of steel bar positioning holes 211 are evenly formed on the edges of the steel bar frame 21, and the steel bar positioning holes 211 are square.

[0020] like Figure 3 As shown, the second positioning device 3 includes a hollow steel plate 31 which is square as a whole and a plurality of hollow bolts 32. Two sliding grooves 311 are evenly arranged on the four edges of the hollow steel plate 31. Some of the hollow bolts 32 are vertically inserted into the sliding grooves 311. The hollow bolts 32 can slide in the sliding grooves 311 and are limited by nuts. The remaining hollow bolts 32 directly and vertically pass through the hollow steel plate 31 and are arranged at the four corners of the hollow steel plate 31. They are also limited by nuts. The thickness of the hollow steel plate 31 is 5 mm, and the aperture of the hollow bolts 32 is 2 mm larger than the diameter of the reserved steel bar 11.

[0021] like Figure 1 As shown, a prefabricated column reserved steel bar positioning device is arranged on the reserved steel bar 11 at the upper end of the prefabricated column structure 1, including Figure 2The first positioning device 2 and Figure 3 The second positioning device 3 is provided, the first positioning device 2 is provided below the second positioning device 3, the first positioning device 2 is provided in the cast-in-place structure 12 at the top of the prefabricated column structure 1, the second positioning device 3 is provided at the upper end of the reserved steel bar 11, the positions of the steel bar positioning hole 211 and the hollow bolt 32 respectively correspond to the positions of the reserved steel bar 11, the reserved steel bar 11 passes through the steel bar positioning hole 211 and the hollow bolt 32 in sequence to achieve positioning, the interior of the prefabricated column structure 1 is provided with a longitudinal reinforcement 13, the bottom of the longitudinal reinforcement 13 is provided with a grouting sleeve 14 for inserting the reserved steel bar 11 of another prefabricated column structure 1, and the bottom of the grouting sleeve 14 is flush with the bottom of the prefabricated column structure 1.

[0022] The construction steps are as follows: make the first positioning device 2 and the second positioning device 3, hoist the prefabricated column structure 1 according to the design drawings, set up the formwork, install the formwork, hoist the prefabricated composite plate, and then install the first positioning device 2, so that the reserved steel bar 11 passes through the steel bar positioning hole 211, adjust the positioning of the reserved steel bar 11 according to the prefabricated column deepening drawing, install the second positioning device 3, adjust the position of the hollow bolt 32 in the sliding groove 311 according to the position of the reserved steel bar 11, and limit it with a nut so that the reserved steel bar 11 passes through the hollow bolt 32, tie the beam and slab steel bars, and then pour concrete. The first positioning device 2 is poured into the cast-in-place structure 12. After the concrete solidifies, the second positioning device 3 is removed, and then the grouting sleeve 14 of the other prefabricated column structure 1 is sleeved on the reserved steel bar 11 below.

Claims

1. A prefabricated column reserved steel bar positioning device, characterized in that: The invention is arranged on a reserved steel bar (11) at the upper end of a prefabricated column structure (1), and comprises a first positioning device (2) and a second positioning device (3). The first positioning device (2) is arranged below the second positioning device (3). The first positioning device (2) comprises a steel bar frame (21) composed of steel bars. The steel bar frame (21) has steel bar positioning holes (211) formed on the edges thereof. The second positioning device (3) comprises a hollow steel plate (31) and a hollow bolt (32). The hollow steel plate (31) is evenly provided with sliding grooves (311). Some of the hollow bolts (32) are vertically inserted into the sliding grooves (311). The remaining hollow bolts (32) directly vertically penetrate the hollow steel plate (31). The lower end of the hollow bolt (32) is limited by a nut. The positions of the steel bar positioning holes (211) and the hollow bolts (32) respectively correspond to the positions of the reserved steel bars (11). The reserved steel bars (11) are positioned by passing through the steel bar positioning holes (211) and the hollow bolts (32) in sequence.

2. A prefabricated column reserved steel bar positioning device as claimed in claim 1, characterized in that: The first positioning device (2) is arranged in the cast-in-place structure (12) at the top of the prefabricated column structure (1), and the second positioning device (3) is arranged at the upper end of the reserved steel bar (11).

3. A prefabricated column reserved steel bar positioning device as claimed in claim 1, characterized in that: The thickness of the hollow steel plate (31) is 5 mm, the steel bar positioning hole (211) is square, and the hole diameter of the hollow bolt (32) is 2 mm larger than the diameter of the reserved steel bar (11).

4. A prefabricated column reserved steel bar positioning device as claimed in claim 1, characterized in that: A longitudinal reinforcement (13) is provided inside the prefabricated column structure (1), and a grouting sleeve (14) for inserting a reserved reinforcement (11) of another prefabricated column structure (1) is provided at the bottom of the longitudinal reinforcement (13).

5. A prefabricated column reserved steel bar positioning device as claimed in claim 4, characterized in that: The bottom of the grouting sleeve (14) is flush with the bottom of the prefabricated column structure (1).

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