Opposite-pulling device with concrete structure main reinforcement serving as side formwork and construction method

Abstract

The invention relates to a concrete structure main reinforcement and side mold opposite-pulling device which comprises a main reinforcement arranged between oppositely-arranged side molds. The two bolt connectors are in butt joint with the two ends of the main reinforcement correspondingly, and the two bolt connectors penetrate through the side formworks on the two sides correspondingly; the limiting pieces are arranged on the bolt connectors, and the limiting pieces abut against the inner side walls of the side molds; and the nuts are in threaded connection with the bolt connectors, and the nuts abut against the outer side walls of the side molds. According to the concrete structure main reinforcement and side formwork opposite-pulling device, the bolt connectors are arranged at the two ends of the main reinforcement to serve as the extension sections, the limiting pieces and the nuts are arranged on the bolt connectors, a limiting structure can be formed for the side formwork, it is guaranteed that the position of the side formwork does not deviate, the working efficiency is improved, the structural quality is guaranteed, and the construction cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a main reinforcement and side formwork pulling device for a concrete structure and a construction method. Background Art

[0002] In current construction, when reinforcing the side formwork of ultra-thick concrete structures, bolts are usually welded to the tied steel cage or the side formwork is fixed with tension bolts.

[0003] However, the construction of additional tension bolts is difficult, the operability is poor, the steel consumption is large, and the change in the reinforcement ratio of the concrete structure will lead to over-reinforced brittle cracks in the components. The method of welding bolts to the main reinforcement cage requires a huge number of welds, the quality is difficult to guarantee, and it is easy to produce a large amount of phosgene pollution. In addition, the compatibility of Class I bolts and Class III steel bars is poor, which can easily damage the reinforcement. The welding nodes are prone to distortion and deformation, resulting in poor reliability of the nodes, and the welding quality is difficult to guarantee. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a main reinforcement of a concrete structure that also serves as a side form tensioning device and a construction method, so as to solve the problems of the existing additional tensioning bolts being difficult to construct, poor operability, huge number of welds, and difficult to ensure quality.

[0005] The technical solution to achieve the above-mentioned purpose is: a main reinforcement of a concrete structure also serving as a side form tensioning device, comprising: a main reinforcement, which is arranged between oppositely arranged side forms; two bolt joints, which are respectively connected to the two ends of the main reinforcement, and the two bolt joints respectively pass through the side forms on both sides; a limiter, which is arranged on the bolt joint, and the limiter abuts against the inner wall of the side form; a nut, which is screwed on the bolt joint, and the nut abuts against the outer wall of the side form.

[0006] In a main reinforcement and side form tensioning device of a concrete structure of the present invention, bolt joints are arranged at both ends of the main reinforcement as extension sections, and limiting pieces and nuts are arranged on the bolt joints, so that a limiting structure can be formed for the side form, thereby ensuring the position of the side form and preventing it from shifting, thereby improving work efficiency, ensuring structural quality, and reducing construction costs.

[0007] A further improvement of the main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention is that a sleeve is provided at the joint between the bolt joint and the main reinforcement, and the sleeve is correspondingly threadedly connected to the bolt joint and the main reinforcement.

[0008] A further improvement of the main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention is that a first thread structure is arranged on the outer periphery of an end of one side of the bolt joint close to the main reinforcement.

[0009] A further improvement of the main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention is that both ends of the main reinforcement are arranged to form the first threaded structure.

[0010] A further improvement of the main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention is that a second thread structure is arranged on the outer periphery of the end of the other side away from the main reinforcement on the bolt joint.

[0011] A further improvement of the main reinforcement of a concrete structure also serving as a side form tensioning device of the present invention is that it also includes: a cover body, which is sleeved on the bolt joint, and the open end of the cover body abuts against the inner wall of the side form to form a cavity.

[0012] A further improvement of the main reinforcement and side form tensioning device of the concrete structure of the present invention is that the limiting member is placed in the cavity.

[0013] A further improvement of the main reinforcement of a concrete structure also serving as a side form tensioning device of the present invention is that an external support structure is arranged outside the side form, and the end of the bolt joint passes through the external support structure.

[0014] A further improvement of the main reinforcement of a concrete structure also serving as a side form tensioning device of the present invention is that a gasket is provided between the nut and the external supporting structure.

[0015] A construction method for a main reinforcement of a concrete structure also serving as a side form tensioning device, comprising the following steps: providing a bolt joint, and using a threading machine to respectively form a first thread structure and a second thread structure at both ends of the bolt joint; connecting a limiter to the bolt joint; sleeve a cover body on the bolt joint, and move the cover body to be arranged adjacent to the limiter; using the threading machine to form the first thread structure at both ends of the main reinforcement; arranging one end of the bolt joint provided with the first thread structure and one end of the main reinforcement opposite to each other and screwing them into a sleeve; setting a side form, and passing the end of the bolt joint provided with the second thread structure through the side form; abutting the limiter against the cover body and the inner side wall of the side form; inserting a gasket from the end of the bolt joint provided with the second thread structure, and screwing it to the outside of the gasket with a nut; repeating the above operation at the other end of the main reinforcement to complete the side form tensioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of a main reinforcement of a concrete structure also serving as a side formwork tensioning device.

[0017] Figure 2 for Figure 1 A partial enlarged view of .

[0018] Figure 3The present invention is a flow chart of a construction method in which the main reinforcement of a concrete structure also serves as a side formwork tensioning device.

[0019] In the figure: 10, main reinforcement; 11, bolt joint; 12, limit piece; 13, nut; 14, sleeve; 15, first thread structure; 16, second thread structure; 17, cover; 18, gasket; 20, side mold. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figure 1 , showing a structural schematic diagram of a main reinforcement of a concrete structure also serving as a side form tensioning device of the present invention. The present invention provides a main reinforcement of a concrete structure also serving as a side form tensioning device, comprising: a main reinforcement 10, the main reinforcement 10 being arranged between oppositely arranged side forms 20.

[0022] Among them, a plurality of main reinforcements 10 are cross-connected vertically and horizontally to form a support network between the side molds 20, and the main reinforcements 10 vertically arranged to the side molds 20 are selected to be used for setting the tensioning device.

[0023] Two bolt joints 11 are respectively connected to two ends of the main reinforcement 10, and the two bolt joints 11 pass through the side molds 20 on both sides respectively.

[0024] The diameter of the bolt joint 11 is set to be consistent with the diameter of the main reinforcement 10, which is convenient for butt connection. The length of the bolt joint 11 is set according to the actual construction requirements and is not specifically limited here.

[0025] The limiting member 12 is disposed on the bolt joint 11 , and the limiting member 12 abuts against the inner wall of the side mold 20 .

[0026] Among them, the limiting member 12 in this embodiment can be a waste steel bar head in the construction site, and the limiting member 12 can be directly welded and fixed on the bolt joint 11 to limit the side mold 20.

[0027] In other embodiments, the limiting member 12 may also be a screw member, which is sleeved on the bolt joint 11 and screwed to the bolt joint 11 to facilitate adjustment of the position of the limiting member 12 .

[0028] The nut 13 is threadedly connected to the bolt joint 11 , and the nut 13 abuts against the outer side wall of the side mold 20 .

[0029] The nut 13 and the limiting member 12 on the same bolt joint 11 are arranged opposite to each other, and the nut 13 and the limiting member 12 are arranged on both sides of the side mold 20 .

[0030] See also Figure 1, showing a structural schematic diagram of a main reinforcement of a concrete structure also serving as a side form tensioning device of the present invention. The present invention provides a main reinforcement of a concrete structure also serving as a side form tensioning device, wherein a sleeve 14 is provided at the joint between the bolt joint 11 and the main reinforcement 10, and the sleeve 14 is correspondingly screwed to the bolt joint 11 and the main reinforcement 10.

[0031] The bolt joint 11 and the main reinforcement 10 are screwed and butted against each other in the sleeve 14 . The size of the sleeve 14 is set according to the size of the bolt joint 11 and the main reinforcement 10 , and is not specifically limited here.

[0032] See also Figure 2 , showing Figure 1 The present invention provides a main reinforcement of a concrete structure and also serves as a side formwork tensioning device, and a first thread structure 15 is arranged on the outer periphery of the end of one side of the bolt joint 11 close to the main reinforcement 10.

[0033] The first thread structure 15 corresponds to and matches the internal thread of the sleeve 14 and can be screwed together.

[0034] See also Figure 1 , showing a structural schematic diagram of a main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention. The present invention provides a main reinforcement of a concrete structure also serving as a side formwork tensioning device, wherein both ends of the main reinforcement 10 are configured as a first threaded structure 15.

[0035] The two ends of the main reinforcement 10 are respectively connected to the corresponding bolt joints 11 in the sleeve 14 , and the first threaded structure 15 is matched with the internal thread of the sleeve 14 .

[0036] See also Figure 2 , showing Figure 1 The present invention provides a main reinforcement of a concrete structure that also serves as a side formwork tensioning device, and a second thread structure 16 is arranged on the outer periphery of the other end of the bolt joint 11 away from the main reinforcement 10.

[0037] The second thread structure 16 corresponds to and matches the internal thread of the nut 13 and are threadedly connected to each other.

[0038] See also Figure 2 , showing Figure 1 The present invention provides a main reinforcement of a concrete structure and a side form tensioning device, which also includes: a cover body 17, the cover body 17 is sleeved on the bolt joint 11, and the open end of the cover body 17 is against the inner wall of the side form 20 to form a cavity.

[0039] The cover 17 is a bowl-shaped structure, and can be made of plastic or steel, without specific limitation, and can be selected according to actual construction. The opening of the cover 17 on the side against the side mold 20 is wider, and the farther away from the side mold 20, the narrower the opening.

[0040] See also Figure 2 , showing Figure 1 The present invention provides a main reinforcement of a concrete structure also serving as a side formwork tensioning device, wherein a limiting member 12 is placed in the cavity.

[0041] The limiting member 12 and the cover body 17 are both arranged against the inner wall of the side form 20 . When pouring concrete, the cavity formed by the cover body 17 can protect the limiting member 12 .

[0042] The present invention provides a main reinforcement of a concrete structure also serving as a side form tensioning device. An external supporting structure is arranged outside the side form 20, and the end of a bolt joint 11 passes through the external supporting structure.

[0043] The end of the bolt joint 11 extends to the outside of the outer supporting structure, which is convenient for construction workers to position on the outside of the side form 20.

[0044] In this embodiment, through holes are provided on the side mold 20 corresponding to the through bolt joints 11. When setting the external support structure, care should be taken to avoid the through holes to prevent the through holes from being blocked and affecting the setting of the bolt ends.

[0045] See also Figure 2 , showing Figure 1 The present invention provides a main reinforcement of a concrete structure which also serves as a side formwork tensioning device, and a gasket 18 is provided between the nut 13 and the external support structure.

[0046] The gasket 18 may be a steel gasket 18, or angle steel at the construction site may be directly used, and no specific limitation is made here.

[0047] See also Figure 3 , showing a flow chart of a construction method of a main reinforcement of a concrete structure also serving as a side formwork tensioning device of the present invention. The present invention provides a construction method of a main reinforcement of a concrete structure also serving as a side formwork tensioning device, comprising the following steps:

[0048] Execute step S210: provide a bolt joint 11, and respectively form a first thread structure 15 and a second thread structure 16 at two ends of the bolt joint 11 by using a threading machine.

[0049] The first thread structure 15 corresponds to and matches the internal thread of the sleeve 14 , and the second thread structure 16 corresponds to and matches the internal thread of the nut 13 . Then, step S220 is performed.

[0050] Execute step S220: connect the limiting member 12 to the bolt joint 11.

[0051] Among them, the waste steel bar head can be directly welded on the bolt joint 11 to form a limiting structure, or it can be screwed with screws, which is convenient for adjusting and moving according to the position of the side form 20. It is selected according to the actual construction and is not specifically limited here. Then, execute step S230.

[0052] Execute step S230 : sleeve the cover body 17 on the bolt joint 11 , and move the cover body 17 to be adjacent to the limiting member 12 .

[0053] The cover body 17 is disposed to surround the outer periphery of the stopper 12 , and then step S240 is performed.

[0054] Execute step S240: use a threading machine to form a first thread structure 15 at both ends of the main reinforcement 10.

[0055] The first thread structure 15 is provided so that the end of the main reinforcement 10 can be screwed with the sleeve 14. Then, step S250 is performed.

[0056] Execute step S250: arrange one end of the bolt joint 11 provided with the first thread structure 15 and one end of the main reinforcement 10 opposite to each other and screw them into the sleeve 14 .

[0057] The bolt joint 11 and the main reinforcement 10 are screwed together through the sleeve 14 to form a whole, which is easy to operate and requires little work. Then, step S260 is executed.

[0058] Execute step S260: set the side mold 20, and pass the end of the second thread structure 16 on the bolt joint 11 through the side mold 20.

[0059] Among them, a through hole needs to be opened before the side form 20 is set up. In order to facilitate the end of the bolt joint 11 to pass through the side form 20 through the through hole on the side form 20, the construction efficiency can be improved. Then, step S270 is executed.

[0060] Execute step S270: abut the limiting member 12 against the cover body 17 and the inner wall of the side mold 20 .

[0061] The limiting member 12 is used to limit the inner side of the side mold 20, and then step S280 is executed.

[0062] Execute step S280: insert the gasket 18 through the end of the second thread structure 16 on the bolt joint 11, and screw the nut 13 to the outer side of the gasket 18.

[0063] Among them, the gasket 18 and the nut 13 are used to apply force to limit the side mold 20 from the outside, which can ensure that the position of the side mold 20 does not shift. Then, step S290 is executed.

[0064] Execute step S290: repeat the above operation at the other end of the main reinforcement 10 to complete the pulling of the side mold 20.

[0065] Among them, bolt joints 11 are arranged at both ends of the main reinforcement 10 to form a symmetrical structure, which is convenient for the pulling operation of the side mold 20.

[0066] The present invention is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various changes to the present invention according to the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be the scope defined by the attached claims.

Claims

1. A main reinforcement of a concrete structure also serves as a side form tensioning device, characterized in that: include: Main reinforcement, the main reinforcement is arranged between the oppositely arranged side forms; Two bolt joints, the two bolt joints are respectively connected to two ends of the main reinforcement, and the two bolt joints pass through the side molds on both sides respectively; A limiting member, wherein the limiting member is arranged on the bolt joint and abuts against the inner side wall of the side mold; A nut is threaded onto the bolt joint, and the nut abuts against the outer side wall of the side mold.

2. The main reinforcement of a concrete structure also serves as a side form tensioning device according to claim 1, characterized in that: A sleeve is provided at the joint between the bolt joint and the main reinforcement, and the sleeve is correspondingly threadedly connected to the bolt joint and the main reinforcement.

3. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 2, characterized in that: A first thread structure is arranged on the outer periphery of an end of the bolt joint close to the main reinforcement.

4. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 3, characterized in that: Both ends of the main rib are configured to form the first thread structure.

5. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 1, characterized in that: A second thread structure is arranged on the outer periphery of the end of the bolt joint on the other side away from the main reinforcement.

6. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 1, characterized in that: Also includes: The cover body is sleeved on the bolt joint, and the opening end of the cover body abuts against the inner wall of the side mold to form a cavity.

7. A main reinforcement of a concrete structure also serving as a side formwork tensioning device according to claim 6, characterized in that: The limiting member is placed in the cavity.

8. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 1, characterized in that: An external supporting structure is arranged outside the side mold, and the end of the bolt joint passes through the external supporting structure.

9. The main reinforcement of a concrete structure also serves as a side formwork tensioning device according to claim 8, characterized in that: A gasket is provided between the nut and the outer supporting structure.

10. A construction method for a concrete structure main reinforcement also serving as a side formwork tensioning device, characterized in that: The steps include: Providing a bolt joint, and using a threading machine to respectively form a first thread structure and a second thread structure at both ends of the bolt joint; Connecting a limiter to the bolt joint; Sleeve the cover body on the bolt joint, and move the cover body to be adjacent to the limiting member; Using the threading machine to form the first thread structure at both ends of the main reinforcement; The end of the bolt joint provided with the first thread structure and the end of the main reinforcement are arranged opposite to each other and screwed into the sleeve; Setting a side mold, and passing the end of the bolt joint provided with the second thread structure through the side mold; The limiting member is abutted against the cover body and the inner side wall of the side mold; Inserting a gasket through the end of the bolt joint where the second thread structure is provided, and screwing the gasket to the outer side of the gasket with a nut; Repeat the above operation at the other end of the main reinforcement to complete the side form pulling.

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