Detachable positioning tool suitable for prefabricated column steel bars

Abstract

The utility model provides a detachable positioning tool suitable for prefabricated column steel bars. The detachable positioning tool comprises a first steel plate, a second steel plate, bolts, nuts, clamping rings and positioning steel bars. A frame-shaped structure is defined by the two first steel plates and the two second steel plates; bolt holes are formed in the two ends of the first steel plate and the two ends of the second steel plate, bolts penetrate through the bolt holes and are fastened through nuts, a plurality of clamping grooves arranged at intervals are formed in the inner side edges, close to the prefabricated column, of the first steel plate and the second steel plate, and the clamping grooves are matched with the positioning steel bars to position the prefabricated column steel bars. According to the positioning tool, the structural style of split design is adopted, the positioning tool is split into the four positioning steel plates, the positioning steel plates are connected through the bolts, mounting and dismounting are convenient, the workload of workers is small, deformation is not prone to occurring in the construction process, tool protection is convenient, and the cyclic utilization rate is high. And on the other hand, the tool is small in steel consumption and high in utilization rate, and the engineering cost can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a detachable positioning tool suitable for prefabricated column reinforcement bars. Background Art

[0002] Prefabricated concrete frame structure refers to the prefabricated concrete columns, beams, slabs and other components connected by reliable connection methods, and formed into an overall prefabricated concrete frame structure with on-site post-cast concrete and cement-based grouting materials. The connection nodes of the prefabricated concrete frame structure mainly include column-column nodes, beam-column nodes and beam-beam nodes. Among them, the column-column node is related to the seismic performance and anti-collapse capacity of the overall structure. It is the last line of defense of the frame structure under the action of earthquake loads and is extremely important.

[0003] The connection between precast columns is usually achieved by grouting sleeves. The grouting sleeves are pre-buried at the bottom of the upper precast column. The steel bars of the lower precast column extend above the cast-in-place layer of the floor slab. The reserved length ensures the anchorage length of the steel bars in the grouting sleeves plus the width of the joints under the precast column. During on-site installation, the lower protruding steel bars are fixed by positioning steel plates and other devices, so that the lower protruding steel bars correspond to the sleeve positions of the upper precast column one by one.

[0004] However, the existing integral positioning steel plates for the extended steel bars of prefabricated columns have the following main disadvantages: 1. The integral positioning steel plates are difficult to install and remove. When the steel bars are offset, the integral positioning steel plates are difficult to install and remove, and workers need to use great effort to knock them in, which is a lot of work for the workers. 2. The integral positioning steel plates are easy to deform and have a low recycling rate. The existing integral positioning steel plates are easy to deform during the installation and removal process. Once deformation occurs, the existing positioning steel plates need to be scrapped; 3. The integral positioning steel plates use a large amount of steel, and the project cost is high. Utility Model Content

[0005] The utility model aims to provide a detachable positioning tool for prefabricated column reinforcement, which can solve the problems of difficult installation and disassembly, low recycling rate and high engineering cost of existing integral positioning steel plates.

[0006] The utility model is implemented as follows: a detachable positioning tool for prefabricated column reinforcement, comprising a No. 1 steel plate, a No. 2 steel plate, bolts, nuts, clamping rings and positioning reinforcement; two pieces of the No. 1 steel plates arranged opposite to each other and two pieces of the No. 2 steel plates arranged opposite to each other jointly form a frame structure whose shape matches the outer contour of the cross section of the prefabricated column; bolt holes are provided at both ends of the No. 1 steel plate and the No. 2 steel plate, the bolts are passed through the bolt holes and are fastened by the nuts, and a plurality of slots arranged at intervals are provided on the inner side edges of the No. 1 steel plate and the No. 2 steel plate near the prefabricated column for the prefabricated column reinforcement to pass vertically; the clamping rings are fixed on the top surfaces of the ends of the No. 1 steel plate and the No. 2 steel plate, the positioning reinforcement is located on the inner side of the clamping grooves and is used to limit the prefabricated column reinforcement, and the two ends of the positioning reinforcement are respectively passed through the clamping rings located on the opposite sides of the frame structure.

[0007] As a further preferred embodiment, the length directions of the two No. 1 steel plates are parallel to each other, the length directions of the two No. 2 steel plates are parallel to each other, and the length directions of the No. 1 steel plate and the No. 2 steel plate are perpendicular to each other.

[0008] As a further preferred embodiment, the end of the No. 1 steel plate is overlapped on the top surface of the end of the No. 2 steel plate.

[0009] As a further preferred embodiment, the detachable positioning tool of the utility model further includes a gasket, on which a through hole is provided for the bolt to pass through, and the gasket is sandwiched between the No. 1 steel plate and the nut.

[0010] As a further preferred solution, the clamping ring is a U-shaped clamping ring, and the diameter of the positioning steel bar matches the inner ring diameter of the clamping ring.

[0011] As a further preferred solution, the shape of the slot matches the shape of the prefabricated column reinforcement, and the slot width of the slot is slightly larger than the diameter of the prefabricated column reinforcement.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The detachable positioning tool provided by the utility model is used to position the reinforcement of the prefabricated column when connecting the upper and lower sections of the prefabricated column, and includes a No. 1 steel plate, a No. 2 steel plate, bolts, nuts, a clamping ring and positioning reinforcement; bolt holes are provided at both ends of the No. 1 steel plate and the No. 2 steel plate, and a plurality of slots arranged at intervals are provided on the inner side edges of the No. 1 steel plate and the No. 2 steel plate near the prefabricated column. During the construction process, the adjacent No. 1 steel plate and the No. 2 steel plate are first assembled according to the reinforcement positioning measurement line, and one corner is fixed with bolts and nuts, and then another parallel No. 1 steel plate and No. 2 steel plate are further assembled, and the four corners are fixed with bolts and nuts; then the positioning reinforcement is inserted into the clamping ring to ensure that the protruding reinforcement of the prefabricated column enters the interior of the clamping groove; finally, concrete is poured, and after the concrete is formed, the bolts are loosened, and the positioning reinforcement, No. 1 steel plate and No. 2 steel plate can be pulled out in turn.

[0014] It can be seen that the positioning tool of the utility model adopts a split design structure to split the positioning tool into four positioning steel plates, each positioning steel plate is connected by bolts, which is convenient to install and disassemble, with a small workload for workers, and is not easy to deform during the construction process. The tool is easy to protect and has a high recycling rate. On the other hand, the tool of the utility model uses a small amount of steel and has a high utilization rate, which can effectively reduce the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a detachable positioning tool provided in an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 The schematic diagram of the exploded structure of the detachable positioning tool shown;

[0017] Figure 3 yes Figure 1 A top view of the detachable positioning tool shown;

[0018] Figure 4 It is an application Figure 1 The schematic diagram shown is a schematic diagram of the detachable positioning tool for positioning the prefabricated column reinforcement. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] The connection between prefabricated columns is usually achieved by grouting sleeves. During on-site installation, the lower protruding steel bars are fixed by positioning steel plates and other devices, so that the lower protruding steel bars correspond to the sleeve positions of the upper prefabricated columns. The existing prefabricated column protruding steel bars are positioned by integral positioning steel plates, which have the problems of difficult installation and disassembly, low recycling rate and high engineering cost.

[0022] In order to solve the above technical problems, this embodiment provides a detachable positioning tool suitable for prefabricated column reinforcement, such as Figures 1 to 3 As shown, the detachable positioning tool 100 includes a No. 1 steel plate 1, a No. 2 steel plate 2, bolts 3, nuts 4, a retaining ring 5 and a positioning steel bar 6.

[0023] Two oppositely arranged No. 1 steel plates 1 and two oppositely arranged No. 2 steel plates 2 together form a frame structure (such as Figure 4 As shown). The joint of the No. 1 steel plate 1 and the No. 2 steel plate 2 is stacked up and down, that is, the end of the No. 1 steel plate 1 is overlapped on the top surface of the end of the No. 2 steel plate 2. Bolt holes 7 are provided at both ends of the No. 1 steel plate 1 and the No. 2 steel plate 2. Bolts 3 are inserted into the bolt holes 7 and fastened by nuts 4. The No. 1 steel plate 1 and the No. 2 steel plate 2 are respectively provided with a plurality of slots 8 arranged at intervals on the inner side edges close to the prefabricated column 200 for the prefabricated column reinforcement 201 to pass vertically.

[0024] Specifically, a clamping ring 5 is fixed on the top surface of the end of the No. 1 steel plate 1 and the No. 2 steel plate 2. The positioning steel bar 6 is located on the inner side of the clamping groove 8 and is used to limit the prefabricated column steel bar 201. The two ends of the positioning steel bar 6 are respectively inserted into the clamping rings 5 ​​located on the opposite sides of the frame structure. In this embodiment, steel bars with a diameter of 20 mm are selected as the positioning steel bars 6.

[0025] In some preferred embodiments, the length directions of the two first steel plates 1 are parallel to each other, the length directions of the two second steel plates 2 are parallel to each other, and the length directions of the first steel plate 1 and the second steel plate 2 are perpendicular to each other. Through the above design, the frame structure can form a rectangular frame, which is particularly suitable for positioning the square prefabricated column reinforcement 201.

[0026] In some preferred embodiments, the positioning tool further includes a gasket 9, which is provided with a through hole for the bolt 3 to pass through, and the gasket 9 is sandwiched between the No. 1 steel plate 1 and the nut 4; by adding the gasket 9, the nut 4 can be prevented from loosening, and the structural stability of the positioning tool can be improved. Specifically, the clamping ring 5 is a U-shaped clamping ring, the diameter of the positioning steel bar 6 matches the inner ring diameter of the clamping ring 5, and the clamping ring 5 can be fixed on the top surface of the end of the No. 1 steel plate 1 by welding.

[0027] In some preferred embodiments, the shape of the slot 8 matches the shape of the prefabricated column reinforcement 201 , and the slot width of the slot 8 is slightly larger than the diameter of the prefabricated column reinforcement 201 , so that the prefabricated column reinforcement 201 can pass through the slot 8 smoothly.

[0028] During the construction process, first assemble the adjacent No. 1 steel plate 1 and No. 2 steel plate 2 according to the steel bar positioning measurement line, and fix one corner with bolts 3 and nuts 4, and then further assemble another parallel No. 1 steel plate 1 and No. 2 steel plate 2, and fix the four corners with bolts 3 and nuts 4; then insert the positioning steel bar 6 into the clamping ring 5 to ensure that the prefabricated column steel bar 201 enters the inside of the clamping groove 8; finally, pour the concrete, and after the concrete is formed, loosen the bolt 3, and the positioning steel bar 6, No. 1 steel plate 1 and No. 2 steel plate 2 can be pulled out in turn.

[0029] In summary, the positioning tooling of this embodiment adopts a split design structure to split the positioning tooling into four positioning steel plates, each of which is connected by bolts, which is convenient to install and disassemble, with a small workload for workers, and is not easy to deform during the construction process. The tooling is easy to protect and has a high recycling rate. On the other hand, the tooling of this embodiment uses a small amount of steel and has a high utilization rate, which can effectively reduce engineering costs.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable positioning tool suitable for prefabricated column reinforcement, characterized in that: It includes a No. 1 steel plate, a No. 2 steel plate, bolts, nuts, clamping rings and positioning steel bars; the two No. 1 steel plates arranged opposite to each other and the two No. 2 steel plates arranged opposite to each other together form a frame structure whose shape matches the outer contour of the cross-section of the prefabricated column; bolt holes are provided at both ends of the No. 1 steel plate and the No. 2 steel plate, the bolts are passed through the bolt holes and fastened by the nuts, and the No. 1 steel plate and the No. 2 steel plate are provided with a plurality of spaced-apart clamping grooves near the inner side edges of the prefabricated column for the prefabricated column steel bars to pass vertically; the clamping rings are fixed on the top surfaces of the ends of the No. 1 steel plate and the No. 2 steel plate, the positioning steel bars are located on the inner sides of the clamping grooves and are used to limit the prefabricated column steel bars, and the two ends of the positioning steel bars are respectively passed through the clamping rings located on the opposite sides of the frame structure.

2. The detachable positioning tool according to claim 1, characterized in that: The length directions of the two No. 1 steel plates are parallel to each other, the length directions of the two No. 2 steel plates are parallel to each other, and the length directions of the No. 1 steel plate and the No. 2 steel plate are perpendicular to each other.

3. The detachable positioning tool according to claim 1, characterized in that: The end of the No. 1 steel plate is overlapped on the top surface of the end of the No. 2 steel plate.

4. The detachable positioning tool according to claim 3, characterized in that: It also includes a gasket, which is provided with a through hole for the bolt to pass through, and the gasket is sandwiched between the No. 1 steel plate and the nut.

5. The detachable positioning tool according to claim 1, characterized in that: The clamping ring is a U-shaped clamping ring, and the diameter of the positioning steel bar matches the inner ring diameter of the clamping ring.

6. The detachable positioning tool according to claim 1, characterized in that: The shape of the clamping groove matches the shape of the prefabricated column reinforcement, and the groove width of the clamping groove is slightly larger than the diameter of the prefabricated column reinforcement.

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