A root anchor and implementation method thereof

Abstract

The present invention discloses a root-type anchor and its realization method, comprising a first stressed steel bar, the outer side of the first stressed steel bar is sleeved with a first inner connecting sleeve, and the outer side of the first inner connecting sleeve is sleeved with a first additional outer anchor, and the first additional anchor bar is installed below the first stressed steel bar. The root-type anchor and its realization method have simple structure, are easy to mass produce, have low cost, and can be widely promoted and applied; the operation is simple and fast, which can improve the work efficiency of steel bar anchoring construction and reduce labor costs; the anti-cracking effect of the transverse steel bar in the anchoring area of ​​the component can be fully exerted, saving steel; the concrete in the anchoring area can fully exert the mechanical effect of the material, saving the amount of concrete, and conforming to the concept of green construction.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a root-type anchoring piece and a realization method thereof. Background Art

[0002] During the construction of building projects, concrete components usually need to be anchored and connected with steel bars at the nodes to achieve the overall formation of the structure. When the steel bar grade and concrete grade remain unchanged, the anchorage length of the steel bar is closely related to its diameter and surface roughness. Due to the size of the component, the steel bars at the interconnected parts of the components usually need to be bent and anchored or attached with anchor plates to meet the requirements of their mechanical properties. The traditional anchoring method is mainly based on straight or bent anchors, and large-diameter steel bars are mainly attached with anchor plates. These methods have the following defects: 1. The mechanical properties of straight anchors are clear, but they require a larger anchoring space, and the use of smaller components is more limited; 2. Both bent anchors and additional anchor plates have requirements for the length of the straight anchor section, and the use of plate components is also limited; 3. The current steel bar anchoring only considers the interaction between the anchored steel bar and concrete, and does not consider the beneficial role of the transverse steel bar in crack resistance, resulting in backward design methods, consumption of more labor and materials, and increased construction costs. In response to the above situation, we have introduced a root anchor and its implementation method. Summary of the invention

[0003] The object of the present invention is to provide a root anchor and a method for implementing the same, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a root-type anchor and its implementation method, comprising a first stressed steel bar, a first inner connecting sleeve is sleeved on the outer side of the first stressed steel bar, and a first additional outer anchor is sleeved on the outer side of the first inner connecting sleeve, a first additional anchor bar is installed below the first stressed steel bar, a second stressed steel bar is installed on the right side of the first stressed steel bar, a second inner connecting sleeve is sleeved on the outer side of the second stressed steel bar, and a second additional outer anchor is sleeved on the outer side of the second inner connecting sleeve, and the second stressed steel bar is sleeved on the outer side of the second stressed steel bar. A second additional anchor bar is installed at the bottom, a third stressed steel bar is installed on the right side of the second stressed steel bar, the outer side of the third stressed steel bar is sleeved with a third inner connecting sleeve, and the outer side of the third inner connecting sleeve is sleeved with a third additional outer anchor, a third additional anchor bar is installed at the bottom of the third stressed steel bar, a fourth stressed steel bar is installed on the right side of the third stressed steel bar, the outer side of the fourth stressed steel bar is sleeved with a fourth inner connecting sleeve, and the outer side of the fourth inner connecting sleeve is sleeved with a fourth additional outer anchor, and a fourth additional anchor bar is installed at the bottom of the fourth stressed steel bar.

[0005] Preferably, the first additional external anchoring piece includes a piece body, a hinge and an anchor root, the interior of the piece body is a cylindrical structure, and the inner side wall of the first inner connecting sleeve is a threaded structure, and the bottom of the piece body is connected by a hinge and an anchor root.

[0006] Preferably, the outer portion of the upper half of the first inner connecting sleeve is a threaded structure, the first inner connecting sleeve comprises a collar, and the outer middle portion of the first inner connecting sleeve is welded to the collar.

[0007] Preferably, the lower half of the first inner connecting sleeve is a pentagonal prism structure, and the upper half of the first inner connecting sleeve is threadedly connected to the main body of the first additional external anchor.

[0008] Preferably, the anchor roots are grouped into five pieces, and the main body of the fastener forms a rotating structure through hinges and the anchor roots, and the maximum angle formed between the main body of the fastener and the anchor roots is 60°.

[0009] Preferably, the first additional anchoring bar is a right-angle bent structure.

[0010] The root anchor is implemented as follows:

[0011] A. The first inner connecting sleeve is inserted into the first stressed steel bar;

[0012] B. The first inner connecting sleeve is sleeved on the outside of the first stressed steel bar, and then the upper half of the first inner connecting sleeve is screwed together through the main body of the first additional external anchor;

[0013] C. The anchor root of the first additional external anchor is stretched open by the collar of the first inner connecting sleeve. Before the anchor root is fully expanded, the entire anchor should be placed inside the transverse steel bar network;

[0014] D. The lower half of the first inner connecting sleeve is sleeved with the first additional anchoring bar;

[0015] E. After the anchors are installed, pour the component concrete.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the root-type anchor and its implementation method are simple in structure, easy to mass produce, low in cost, and can be widely promoted and applied; the operation is simple and quick, which can improve the work efficiency of steel bar anchoring construction and reduce labor costs; the anti-cracking effect of the transverse steel bars in the anchoring area of ​​the component can be fully exerted, saving steel; the concrete in the anchoring area can fully exert the mechanical effect of the material, saving the amount of concrete, and complying with the concept of green construction; the anchoring space is greatly reduced, which is convenient for design optimization, indirectly reducing the amount of steel and concrete, and saving material costs. When the first additional external anchor is screwed together with the first inner connecting sleeve, the anchor root is supported by the bulging part in the middle of the first inner connecting sleeve to form an anchor root similar to the plant root system, which can diffuse the anchoring stress to the concrete in a larger area around it, fully exerting the mechanical properties of the material, and when the anchor root is not When the anchor bearing capacity requirement can be fully met, the first additional anchor bar can be provided at the lower end of the first inner connecting sleeve to make up for the insufficient anchor bearing capacity. The anchor bar is threadedly connected to the stressed longitudinal reinforcement through the first inner connecting sleeve, and then one end of the anchor root of the first additional external anchor piece that has been inserted into the stressed longitudinal reinforcement is screwed toward the end with a thread on the outer wall of the first inner connecting sleeve. During the screwing process, the anchor root is unfolded, and the unfolded anchor root is extended into the inner side of the transverse reinforcement grid of the component. After the concrete is poured, it works together with the concrete and the transverse reinforcement to achieve the purpose of anchoring the longitudinal reinforcement. Since the anchor stress is transferred to the concrete in a larger area around the anchor root, the space in the length direction of the anchor reinforcement is reduced, the anti-cracking effect of the transverse reinforcement is exerted, steel and concrete are saved, and conditions are provided for component design optimization. In addition, the installation operation of the anchor piece is simple, which speeds up the construction speed and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention when it is installed;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the first additional external anchoring piece of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the first inner connecting sleeve of the present invention;

[0021] Figure 5 This is a schematic diagram of the first additional anchor bar structure of the present invention.

[0022] In the figure: 1. first stressed steel bar; 2. first additional external anchoring piece; 201. anchor body; 202. hinge; 203. anchor root; 3. first inner connecting sleeve; 301. collar; 4. first additional anchoring bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The present invention provides a technical solution: a root anchor and a method for realizing the same, comprising a first stressed steel bar 1, a first inner connecting sleeve 3 is sleeved on the outer side of the first stressed steel bar 1, and a first additional outer anchor 2 is sleeved on the outer side of the first inner connecting sleeve 3, a first additional anchor bar 4 is installed below the first stressed steel bar 1, a second stressed steel bar 5 is installed on the right side of the first stressed steel bar 1, a second inner connecting sleeve 9 is sleeved on the outer side of the second stressed steel bar 5, and a second additional outer anchor 8 is sleeved on the outer side of the second inner connecting sleeve 9, and a second additional anchor bar 4 is installed below the second stressed steel bar 5. Reinforcing bar 10, a third stressed steel bar 6 is installed on the right side of the second stressed steel bar 5, a third inner connecting sleeve 12 is sleeved on the outer side of the third stressed steel bar 6, and a third additional outer anchor 11 is sleeved on the outer side of the third inner connecting sleeve 12, a third additional anchor bar 13 is installed below the third stressed steel bar 5, a fourth stressed steel bar 7 is installed on the right side of the third stressed steel bar 6, a fourth inner connecting sleeve 15 is sleeved on the outer side of the fourth stressed steel bar 7, and a fourth additional outer anchor 14 is sleeved on the outer side of the fourth inner connecting sleeve 15, and a fourth additional anchor bar 16 is installed below the fourth stressed steel bar 7.

[0025] The first additional external anchor 2 includes a main body 201, a hinge 202 and an anchor root 203. The interior of the main body 201 is a cylindrical structure, and the inner wall of the first inner connecting sleeve 3 is a threaded structure. The bottom of the main body 201 is connected by the hinge 202 and the anchor root 203.

[0026] The outer portion of the upper portion of the first inner connecting sleeve 3 is a threaded structure. The first inner connecting sleeve 3 includes a collar 301 , and the outer middle portion of the first inner connecting sleeve 3 is welded to the collar 301 .

[0027] The lower half of the first inner connecting sleeve 3 is a pentagonal prism structure, and the upper half of the first inner connecting sleeve 3 is threadedly connected to the anchor body 201 of the first additional outer anchor 2 .

[0028] The anchor roots 203 are grouped into five pieces, and the main body 201 of the fastener forms a rotating structure through the hinge 202 and the anchor roots 203, and the maximum angle formed between the main body 201 of the fastener and the anchor roots 203 is 60 degrees.

[0029] The first additional anchoring bar 4 is a right-angle bent structure.

[0030] The root anchor is implemented as follows:

[0031] A. The first inner connecting sleeve 3 is inserted into the first stressed steel bar 1;

[0032] B. The first inner connecting sleeve 3 is sleeved on the outside of the first stressed steel bar 1, and then the upper part of the first inner connecting sleeve 3 is screwed together through the main body 201 of the first additional external anchor 2;

[0033] C. The anchor root 203 of the first additional external anchor 2 is stretched open by the collar 301 of the first inner connecting sleeve 3. Before the anchor root 203 is fully unfolded, the entire anchor should be placed inside the transverse steel bar network;

[0034] D. The lower half of the first inner connecting sleeve 3 is sleeved with the first additional anchoring bar 4;

[0035] E. After the anchors are installed, pour the component concrete.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A root anchor, comprising a first stress-bearing steel bar (1), characterized in that: The first stress-bearing steel bar (1) is sleeved with a first inner connecting sleeve (3) on its outer side, and a first additional outer anchoring piece (2) is sleeved with the outer side of the first inner connecting sleeve (3); a first additional anchoring bar (4) is installed below the first stress-bearing steel bar (1); a second stress-bearing steel bar (5) is installed on the right side of the first stress-bearing steel bar (1); a second inner connecting sleeve (9) is sleeved with the outer side of the second stress-bearing steel bar (5), and a second additional outer anchoring piece (8) is sleeved with the outer side of the second inner connecting sleeve (9); a second additional anchoring bar (10) is installed below the second stress-bearing steel bar (5); and a second stress-bearing steel bar (5) is installed on the right side of the second stress-bearing steel bar (5). A third stressed steel bar (6), wherein the outer side of the third stressed steel bar (6) is sleeved with a third inner connecting sleeve (12), and the outer side of the third inner connecting sleeve (12) is sleeved with a third additional outer anchoring piece (11), a third additional anchoring bar (13) is installed below the third stressed steel bar (6), a fourth stressed steel bar (7) is installed on the right side of the third stressed steel bar (6), the outer side of the fourth stressed steel bar (7) is sleeved with a fourth inner connecting sleeve (15), and the outer side of the fourth inner connecting sleeve (15) is sleeved with a fourth additional outer anchoring piece (14), and a fourth additional anchoring bar (16) is installed below the fourth stressed steel bar (7); The first additional external anchoring member (2) comprises a member body (201), a hinge (202) and an anchor root (203); the interior of the member body (201) is a cylindrical structure, and the inner wall of the first inner connecting sleeve (3) is a threaded structure; the lower part of the member body (201) is connected to the anchor root (203) via the hinge (202); The outer portion of the upper half of the first inner connecting sleeve (3) is a threaded structure, the first inner connecting sleeve (3) comprises a collar (301), and the outer middle portion of the first inner connecting sleeve (3) is welded to the collar (301); The lower half of the first inner connecting sleeve (3) is a pentagonal prism structure, and the upper half of the first inner connecting sleeve (3) is threadedly connected to the fixing body (201) of the first additional outer anchoring piece (2); The anchor roots (203) are grouped into five pieces each, and the main body (201) of the fastener forms a rotating structure through the hinge (202) and the anchor roots (203), and the maximum angle formed between the main body (201) of the fastener and the anchor roots (203) is 60°.

2. A root anchor according to claim 1, characterized in that: The first additional anchoring bar (4) is a right-angled bent structure.

3. A method for implementing a root anchor according to any one of claims 1-2, characterized in that: The root anchor implementation method is as follows: A. The first inner connecting sleeve (3) is inserted into the first stress-bearing steel bar (1); B. The first inner connecting sleeve (3) is sleeved on the outside of the first stressed steel bar (1), and then the upper part of the first inner connecting sleeve (3) is screwed together through the fixing body (201) of the first additional outer anchoring piece (2); C. The anchor root (203) of the first additional external anchor (2) is stretched open by the collar (301) of the first inner connecting sleeve (3), and before the anchor root (203) is fully expanded, the entire anchor must be placed inside the transverse steel bar network; D. The lower half of the first inner connecting sleeve (3) is sleeved with the first additional anchoring rib (4); E. After the anchors are installed, pour the component concrete.

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