Device and method for plugging holes of leaking steel bars in high pier and large span prestressed T-beams

Abstract

The present invention discloses a device for plugging holes in leaking steel bars of high pier and large-span prestressed T-beams, comprising a butyl rubber member and a detachable metal fixing ring. The butyl rubber member is sleeved on the outside of the leaking steel bars. The detachable metal fixing ring is provided with a mounting hole, wherein a bolt is inserted through the mounting hole to seal and install the detachable metal fixing ring on a template. The detachable metal fixing ring comprises a semi-ring body 1 and a semi-ring body 2. The semi-ring body 1 is provided with a through hole 1, and the semi-ring body 2 is provided with an internal threaded hole 1 corresponding to the position of the through hole. The semi-ring body 1 and the semi-ring body 2 are connected by bolts, and the bolts pass through the through hole 1 and are connected to the internal threaded hole 1. After the detachable metal fixing ring is connected by bolts, the butyl rubber member is pressed and fixed to complete the plugging. The butyl rubber member, due to its excellent elasticity, can be partially elastically deformed after being sleeved on the outside of the leaking steel bars. The detachable metal fixing ring can be fixed to the template through the mounting hole, and the butyl rubber member is pressed and connected to complete the sealing effect at the hole of the leaking steel bars.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, in particular to a device and a method for plugging holes of leaking steel bars in high-pier and large-span prestressed T-beams. Background Art

[0002] The existing high piers and large-span prestressed T-beams are equipped with multiple exposed steel bars on the side. Since the exposed steel bars often require holes to be reserved in the sealing steel plates, and the diameter of the holes is generally larger than the diameter of the exposed steel bars, after the formwork is installed, there is a large gap between the exposed steel bars and the formwork that needs to be sealed. This is especially true for exposed steel bars with a thicker diameter (above Φ16mm), where the gap is even larger. Conventional sealing methods often use materials such as foam glue, double-sided tape, and geotextiles. However, these materials can easily fall off during the concrete pouring and vibration process, making it difficult to ensure the sealing effect. Poor sealing results in leakage and slurry leakage, which can easily lead to rough surfaces or honeycomb phenomena in the area. In particular, leakage and slurry leakage are serious for exposed steel bars with a thicker diameter (above Φ16mm). Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing thicker diameter leaking steel bars have poor sealing effect and easily cause slurry leakage and runaway.

[0004] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0005] A device for plugging holes in leaking steel bars of high pier and large-span prestressed T-beams comprises a butyl rubber part and a separate metal fixing ring. The butyl rubber part is sleeved on the outside of the leaking steel bars. The separate metal fixing ring is provided with a mounting hole. The mounting hole is suitable for passing bolts to seal the separate metal fixing ring on the template. The separate metal fixing ring comprises a semi-ring body 1 and a semi-ring body 2. The semi-ring body 1 is provided with a through hole 1, and the semi-ring body 2 is provided with an internal threaded hole 1 corresponding to the position of the through hole. The semi-ring body 1 and the semi-ring body 2 are connected by bolts, and the bolts pass through the through hole 1 and are connected to the internal threaded hole 1.

[0006] Specifically, the butyl rubber part is pressed and fixed by bolting the separate metal fixing ring to complete the sealing. The excellent elasticity of the butyl rubber part can cause partial elastic deformation after being put on the outside of the leaking steel bar. The separate metal fixing ring can be fixed on the template through the installation hole, and the butyl rubber part is pressed to complete the sealing effect at the leaking steel bar hole.

[0007] In a preferred embodiment, the butyl rubber component includes a main body and a through-hole structure. The main body is located between the separate metal fixing ring and the template. The through-hole structure is opened in the middle of the main body. The through-hole structure is a through hole or a chrysanthemum-shaped opening. The diameter of the through-hole structure is 3 to 5 mm smaller than the size of the exposed steel bar.

[0008] Preferably, a nylon sheet or a polytetrafluoroethylene sheet is provided on the side of the body opposite to the separate metal fixing ring. The use of the nylon sheet or the polytetrafluoroethylene sheet can reduce the change in the shape of the butyl rubber part when assembling the separate metal fixing part, thereby ensuring the sealing effect.

[0009] In a preferred embodiment, the mounting holes are provided on the semi-ring body 1 and the semi-ring body 2, and the mounting holes are rectangular holes or waist-shaped holes, and the mounting holes are arranged parallel to the axis of the internal threaded hole 1 / through hole 1.

[0010] In a preferred embodiment, the first and second semi-ring bodies are both provided with a semi-ring groove, the two semi-ring grooves forming a limiting groove, a fixing ring is installed in the limiting groove, a connecting hole is provided on the periphery of the fixing ring, the connecting hole is suitable for installing bolts to fix the fixing ring in the limiting groove, an extrusion ring is sleeved on the fixing ring, a filling cavity is provided between the extrusion ring and the inner side of the fixing ring, and a butyl rubber skin is installed in the filling cavity;

[0011] The extrusion ring is provided with a glue injection structure and an exhaust structure, the fixed ring is installed with an internal threaded hole 2, and the extrusion ring is provided with a through hole 2. The positions of the through hole 2 and the internal threaded hole 2 correspond to each other. The fixed ring and the extrusion ring are connected by bolts passing through the through hole 2 and the internal threaded hole 2, and the bolts are suitable for adjusting the distance between the fixed ring and the extrusion ring.

[0012] This structure is a special design made when the separate metal fixing ring cannot be accurately / uniformly pressed and fixed to the butyl rubber part on the outside of the leaking steel bar or the inner diameter of the separate metal fixing ring is larger than the leaking steel bar. The fixing ring is installed in the limiting groove on the separate metal fixing ring. A sealing ring is pre-installed in the limiting groove to ensure the sealing effect of the fixing ring and the separate metal fixing ring after installation. The through hole two and the internal threaded hole two are connected by bolts, so that the distance between the extrusion ring and the fixing ring is adjustable. The glue injection structure is used to inject glue into the filling cavity. The exhaust structure is suitable for exhausting air during glue injection. After glue injection, the exhaust structure is pushed into the extrusion ring and gradually enters the internal threaded hole three through bolts. The distance between the fixing ring and the extrusion ring is adjusted, so that the internally filled sealant squeezes the butyl rubber skin, forcing it to be pressed onto the leaking steel bar. At the same time, it can also squeeze the butyl rubber part sleeved on the outside of the leaking steel bar toward the side close to the formwork. When the concrete is poured and vibrated, it is not easy to cause leakage and slurry leakage.

[0013] In a preferred embodiment, the glue injection structure and the exhaust structure each comprise two symmetrically arranged PE membranes that are electrostatically attracted to each other. During glue injection, the two PE membranes of the exhaust structure are located outside the extrusion ring, while the two PE membranes of the glue injection structure are located inside the extrusion ring. After glue injection is completed, the two PE membranes of the exhaust structure are pushed into the extrusion ring.

[0014] Preferably, the extrusion ring is provided with a third internal threaded hole, which is located outside the glue injection structure and the exhaust structure. The third internal threaded hole is used to seal the exhaust structure and the glue injection structure with a short bolt.

[0015] In a preferred solution, when sealing a plurality of leaking steel bars, two adjacent separate metal fixing rings are connected by a connecting rod, which is a threaded rod with adjustable length.

[0016] The method for sealing the leaking steel bar plugging device of high pier column and large span prestressed T-beam is as follows:

[0017] Step 1: Device fabrication

[0018] An internal threaded hole 1 is formed on the semi-annular body 1, and a through hole 1 is formed on the semi-annular body 2. The through hole 1 and the internal threaded hole 1 are positioned correspondingly. Mounting holes are formed on the semi-annular body 1 and the semi-annular body 2. The mounting holes are rectangular holes or waist-shaped holes and are arranged parallel to the axis of the internal threaded hole 1 / through hole 1.

[0019] Open the internal threaded hole 2 and the connecting hole on the fixing ring, open the internal threaded hole 3 and the through hole 2 on the extrusion ring, install the exhaust structure and the glue injection structure at the root of the internal threaded hole 3, connect the through hole 2 and the internal threaded hole 2 through a bolt, and install butyl rubber skin in the filling cavity surrounded by the extrusion ring and the fixing ring;

[0020] Step 2: Butyl rubber parts installation

[0021] Put the butyl rubber parts through the penetrating structure and put them on the outside of the exposed steel bars, and move the butyl rubber parts until they are close to the formwork;

[0022] Step 3: Install the split metal fixing ring

[0023] Temporarily assembling the semi-ring body 1 and the semi-ring body 2 in a non-tight manner by means of bolts through the internal threaded hole 1 and the through hole 1;

[0024] Then, the first and second half ring bodies are loosely fastened to the template through the mounting holes;

[0025] Then, the semi-ring body 1 and the semi-ring body 2 are fastened and assembled by tightening bolts, and the semi-ring body 1 and the semi-ring body 2 are pressed and fixed on the deformed butyl rubber part on the outer side of the exposed steel bar;

[0026] Then tighten the bolts to fasten the main body of the semi-ring body 1 and the semi-ring body 2 to the template. At this time, the butyl rubber part is in a compressed state.

[0027] A sealing ring is installed in the limiting groove surrounded by the semi-ring grooves of the semi-ring body 1 and the semi-ring body 2, and the fixing ring is crimped and fixed to the separate metal fixing ring by passing bolts through the connecting holes on the fixing ring;

[0028] Step 4: Glue injection

[0029] The internal threaded hole 3 at the glue injection structure is connected to a glue injection pipe to inject glue into the filling cavity between the extrusion ring and the fixed ring. During the glue injection, the two PE diaphragms of the exhaust structure are located outside the second body. When the glue is injected, sealant is discharged from the two PE diaphragms of the exhaust structure.

[0030] Install a short bolt through the internal threaded hole 3 at the injection structure. First, discharge the sealant from the two PE diaphragms of the exhaust structure, then push it back into the filling cavity in the extrusion ring. Apply sealant to the internal threaded hole 3 at the exhaust structure and seal it with the short bolt.

[0031] Step 5: Gluing

[0032] Immediately after the glue injection is completed, adjust the bolt on the extrusion ring to gradually enter the internal threaded hole three, and adjust the distance between the extrusion ring and the fixed ring to gradually decrease, so that the internal sealant squeezes the butyl rubber skin to press the outside of the exposed steel bar and squeezes the butyl rubber part to the side close to the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0034] Figure 2 This is a front view of the overall structure of an embodiment of the present invention;

[0035] Figure 3 This is a front view of the detachable metal fixing ring of the present invention;

[0036] Figure 4 This is a cross-section of the connection between the extrusion ring and the fixing ring of the present invention. Figure 1 ;

[0037] Figure 5 This is a cross-section of the connection between the extrusion ring and the fixing ring of the present invention. Figure 2 ;

[0038] Figure 6 This is a cross-sectional view of the connection between the extrusion ring and the fixing ring after filling with glue;

[0039] Figure 7 This is a front view of the overall structure of an embodiment of the present invention;

[0040] Figure 8 It is a front view of the butyl rubber component of the present invention;

[0041] Figure 9 is a cross-sectional view of a butyl rubber member of the present invention;

[0042] Figure 10 This is a distribution diagram of the sealing devices for multiple leaking steel bars of the present invention.

[0043] In the figure: 10, butyl rubber part; 11, main body; 12, through-hole structure; 20, separate metal fixing ring; 21, mounting hole; 22, semi-ring body 1; 23, semi-ring body 2; 24, internal threaded hole 1; 25, through hole 1; 26, semi-ring groove; 27, fixing ring; 271, internal threaded hole 2; 28, connecting hole; 29, extrusion ring; 291, through hole 2; 292, internal threaded hole 3; 210, butyl rubber skin; 30, glue injection structure; 40, exhaust structure; 50, connecting rod. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0046] Example 1, as Figure 1 、 Figure 8 、 Figure 9 As shown, a device for plugging holes in leaking steel bars of high pier and large-span prestressed T-beams comprises a butyl rubber member 10 and a separate metal fixing ring 20. The butyl rubber member 10 is sleeved on the outside of the leaking steel bars. The separate metal fixing ring 20 is provided with a mounting hole 21. The mounting hole 21 is suitable for passing bolts to seal and install the separate metal fixing ring 20 on the template. The separate metal fixing ring 20 comprises a semi-ring body 1 22 and a semi-ring body 2 23. The semi-ring body 1 22 is provided with a through hole 1 25, and the semi-ring body 2 23 is provided with an internal threaded hole 1 24 corresponding to the position of the through hole. The semi-ring body 1 22 and the semi-ring body 2 23 are connected by bolts, and the bolts pass through the through hole 1 25 and are connected to the internal threaded hole 1 24.

[0047] like Figure 8 As shown, the butyl rubber component 10 includes a main body 11 and a through structure 12. The main body 11 is located between the separate metal fixing ring 20 and the template. The through structure 12 is opened in the middle of the main body 11. The through structure 12 is a through hole or a chrysanthemum-shaped opening. The diameter of the through structure 12 is 3 to 5 mm smaller than the size of the exposed steel bar.

[0048] A nylon sheet or a polytetrafluoroethylene sheet is provided on one side of the body 11 opposite to the separate metal fixing ring 20 .

[0049] The mounting hole 21 is provided on the semi-ring body 1 22 and the semi-ring body 2 23 , and the mounting hole 21 is a rectangular hole or a waist-shaped hole. The mounting hole 21 is arranged parallel to the axis of the internal threaded hole 1 24 / the through hole 1 25 .

[0050] In this embodiment, the separate metal fixing ring 20 is the same size as or slightly larger than the exposed steel bar (the inner diameter is 1 to 2 mm larger than the diameter of the exposed steel bar). Specifically: after the template is installed, the butyl rubber part 10 is installed on the outside of the exposed steel bar. The butyl rubber part 10 is installed on the outside of the exposed steel bar through the through structure 12, and the main body 11 is pushed to fit the template surface. The semi-ring body 1 22 and the semi-ring body 2 23 are non-tightened and assembled through the bolts, the internal threaded hole 1 24, and the through hole 1 25 and installed on the outside of the exposed steel bar. Then, the semi-ring body 1 22 and the semi-ring body 2 23 are non-tightened and installed on the template surface through the installation hole 21. By gradually inserting the bolts into the internal threaded hole 1 24, the butyl rubber part 10 is sealed on the outside of the exposed steel bar. Finally, the semi-ring body 1 22 and the semi-ring body 2 23 are fastened together by the bolts at the installation hole 21 to press the butyl rubber part 10 on the template surface to ensure the sealing effect at the exposed steel bar.

[0051] Example 2: Based on the above example, the following improvements are made: Figures 1 to 6 As shown, the semi-ring body 1 22 and the semi-ring body 2 23 are both provided with a semi-ring groove 26. The two semi-ring grooves 26 form a limiting groove. A fixing ring 27 is installed in the limiting groove. The fixing ring 27 is provided with a connecting hole 28 on the periphery. The connecting hole 28 is suitable for installing bolts to fix the fixing ring 27 in the limiting groove. An extrusion ring 29 is sleeved on the fixing ring 27. A filling cavity is surrounded by the extrusion ring 29 and the inner side of the fixing ring 27. A butyl rubber skin 210 is installed in the filling cavity.

[0052] The extrusion ring 29 is provided with a glue injection structure 30 and an exhaust structure 40, the fixed ring 27 is installed with an internal threaded hole 271, and the extrusion ring 29 is provided with a through hole 291. The positions of the through hole 291 and the internal threaded hole 271 correspond to each other. The fixed ring 27 and the extrusion ring 29 are connected by bolts passing through the through hole 291 and the internal threaded hole 271, and the bolts are suitable for adjusting the distance between the fixed ring 27 and the extrusion ring 29.

[0053] The glue injection structure 30 and the exhaust structure 40 each include two symmetrically arranged PE membranes that are attracted to each other by electrostatic force.

[0054] The extrusion ring 29 is provided with a third internal threaded hole 292 , which is located outside the glue injection structure 30 and the exhaust structure 40 .

[0055] The center of the extrusion ring 29 is eccentrically provided with a hole whose diameter is the same as the size of the exposed steel bar. The two can rotate relative to each other. The hole in the middle of the fixing ring 27 is larger than the size of the exposed steel bar.

[0056] This embodiment is suitable for when the separate metal fixing ring 20 cannot be accurately / uniformly crimped and fixed to the butyl rubber part 10 on the outside of the exposed steel bar or the inner diameter of the separate metal fixing ring 20 is larger than the diameter of the exposed steel bar. Specifically, a semi-annular groove 26 is added to the side of the separate metal fixing ring 20 facing away from the template, and a fixing ring 27 is installed in the semi-annular groove 26 through bolts and connecting holes 28. The fixing ring 27 and the extrusion ring 29 are connected by bolts, the second internal threaded hole 271 and the second through hole 291, and the inner diameter is installed with a butyl rubber skin 210. When in use, after the fixing ring 27 is fixed, glue is injected into the extrusion ring 29 through the glue injection tube connected to the glue injection structure 30 through the internal threaded hole 392, and the exhaust structure 40 At this time, the outside of the extrusion ring 29 is suitable for exhaust treatment during glue injection. After the glue injection is completed, it is installed in the internal threaded hole three 292 at the glue injection structure 30 through short bolts. After the glue injection, the exhaust structure 40 is squeezed or pressed into the inside of the extrusion ring 29, and sealant is applied to the internal threaded hole three 292 there and sealed with a short bolt. By adjusting the bolt gradually, it enters the internal threaded hole three 292, which will reduce the distance between the extrusion ring 29 and the fixed ring 27. It is implemented before the sealant solidifies, extruding the butyl rubber skin 210 and pressing it to the outside of the exposed steel bar. At the same time, the unevenly pressed butyl rubber part 10 will be squeezed to the side close to the template. After the sealant is completely solidified, the concrete pouring process is carried out.

[0057] Example 3: Based on the above example, the following improvements are made: Figure 10 As shown, when sealing multiple leaking steel bars, two adjacent separate metal fixing rings 20 are connected by a connecting rod 50, and the connecting rod 50 is a threaded rod with adjustable length.

[0058] Example 4 is different from Example 2 in that Figure 7 As shown, the hole in the middle of the extrusion ring 29 that passes through the exposed steel bar is eccentrically arranged, and the outer periphery of the fixing ring 27 is provided with a connecting ear, and the connecting ear is provided with a connecting hole 28. The overall structure of the connecting hole 28 is a waist-shaped structure.

[0059] The difference between this embodiment and embodiment 2 is that the extrusion ring 29 is eccentrically arranged and the hole diameter is the same as the size of the exposed steel bar and can rotate relative to each other. The fixing ring 27 can rotate relative to the separate metal fixing ring 20 to adjust the central eccentric hole of the extrusion ring 29 to adapt to the exposed steel bar, ensuring that the inner diameter of the eccentric hole and the outer diameter of the exposed steel bar are adapted. This can prevent the separate metal fixing ring 20 from being easily offset when the butyl rubber part 10 is not accurately / uniformly fixed, that is, when the separate metal fixing ring 20 is implemented in embodiment 1, when the assembly is tightened, resulting in eccentricity between the separate metal fixing ring 20 and the exposed steel bar. The eccentricity is eliminated by rotating at an appropriate angle relative to the separate rotating ring through the eccentric hole in the middle of the extrusion ring 29.

[0060] The method for sealing the leaking steel bar plugging device of high pier column and large span prestressed T-beam is as follows:

[0061] Step 1: Device fabrication

[0062] An internal threaded hole 24 is formed on the semi-annular body 1, and a through hole 25 is formed on the semi-annular body 23. The through hole 25 and the internal threaded hole 24 are located in corresponding positions. Mounting holes 21 are formed on the semi-annular body 1 22 and the semi-annular body 23. The mounting holes 21 are rectangular holes or waist-shaped holes and are arranged parallel to the axis of the internal threaded hole 24 / through hole 25.

[0063] A second internal threaded hole 271 and a connecting hole 28 are provided on the fixing ring 27, and a third internal threaded hole 292 and a second through hole 291 are provided on the extrusion ring 29. An exhaust structure 40 and a glue injection structure 30 are installed at the root of the third internal threaded hole 292. Bolts are passed through the second through hole 291 and the second internal threaded hole 271 to connect them. A butyl rubber skin 210 is installed in the filling cavity enclosed by the extrusion ring 29 and the fixing ring 27.

[0064] Step 2: Install the butyl rubber part 10

[0065] Put the butyl rubber part 10 through the penetrating structure 12 and put it on the outside of the exposed steel bar, and move the butyl rubber part 10 to be close to the formwork;

[0066] Step 3: Install the separate metal fixing ring 20

[0067] Temporarily assemble the semi-ring body 1 22 and the semi-ring body 2 23 in a non-tight manner by means of bolts through the internal threaded hole 1 24 and the through hole 1 25;

[0068] Then, first loosely fasten the semi-ring body 1 22 and the semi-ring body 2 23 to the template through the mounting hole 21;

[0069] Then, the semi-ring body 1 22 and the semi-ring body 2 23 are fastened and assembled by tightening bolts and pressed and fixed onto the deformed butyl rubber member 10 on the outside of the exposed steel bar;

[0070] Then tighten the bolts to fasten the main bodies 11 of the semi-ring body 1 22 and the semi-ring body 2 23 to the template. At this time, the butyl rubber member 10 is in a compressed state.

[0071] Install a sealing ring in the limiting groove surrounded by the semi-ring groove 26 of the semi-ring body 1 22 and the semi-ring body 2 23, and press the fixing ring 27 to fix it on the separate metal fixing ring 20 by passing the bolt through the connecting hole 28 on the fixing ring 27;

[0072] Step 4: Glue injection

[0073] The internal threaded hole 3 292 at the glue injection structure 30 is connected to a glue injection pipe to inject glue into the filling cavity between the extrusion ring 29 and the fixing ring 27. During the glue injection, the two PE diaphragms of the exhaust structure 40 are located outside the second body 11. When the glue is injected, the sealant is discharged from the two PE diaphragms of the exhaust structure 40.

[0074] Install a short bolt through the third internal threaded hole 292 at the glue injection structure 30, first discharge the sealant from the two PE diaphragms of the exhaust structure 40, then push it back into the filling cavity in the extrusion ring 29, apply sealant to the third internal threaded hole 292 at the exhaust structure 40 and seal it with the short bolt;

[0075] Step 5: Gluing

[0076] Immediately after the glue injection is completed, the bolts on the extrusion ring 29 are adjusted to gradually enter the internal threaded hole 3 292, and the distance between the extrusion ring 29 and the fixing ring 27 is adjusted to gradually decrease, so that the internal sealant squeezes the butyl rubber skin 210 to press against the outside of the exposed steel bar and squeezes the butyl rubber part 10 toward the side close to the template.

[0077] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A device for plugging holes in high pier and large span prestressed T-beams with exposed steel bars, characterized in that: The invention comprises a butyl rubber part (10) and a detachable metal fixing ring (20), wherein the butyl rubber part (10) is sleeved on the outside of the exposed steel bar, and the detachable metal fixing ring (20) is provided with a mounting hole (21), wherein the mounting hole (21) is suitable for passing a bolt to seal the detachable metal fixing ring (20) on the template, and the detachable metal fixing ring (20) comprises a semi-ring body (22) and a semi-ring body (23), wherein the semi-ring body (22) is provided with a through hole (25), and the semi-ring body (23) is provided with an internal threaded hole (24) corresponding to the position of the through hole, and the semi-ring body (22) and the semi-ring body (23) are connected by a bolt, and the bolt passes through the through hole (25) and is connected with the internal threaded hole (24); The butyl rubber component (10) comprises a body (11) and a through-structure (12), wherein the body (11) is located between the separate metal fixing ring (20) and the template, and the through-structure (12) is opened in the middle of the body (11); The semi-ring body 1 (22) and the semi-ring body 2 (23) are both provided with a semi-ring groove (26), the two semi-ring grooves (26) forming a limiting groove, a fixing ring (27) is installed in the limiting groove, a connecting hole (28) is provided on the periphery of the fixing ring (27), the connecting hole (28) is suitable for installing bolts to fix the fixing ring (27) in the limiting groove, an extrusion ring (29) is sleeved on the fixing ring (27), a filling cavity is provided between the extrusion ring (29) and the inner side of the fixing ring (27), and a butyl rubber skin (210) is installed in the filling cavity; The extrusion ring (29) is provided with a glue injection structure (30) and an exhaust structure (40), the fixed ring (27) is provided with a second internal threaded hole (271), the extrusion ring (29) is provided with a second through hole (291), the second through hole (291) and the second internal threaded hole (271) are positioned correspondingly, the fixed ring (27) and the extrusion ring (29) are connected by bolts passing through the second through hole (291) and the second internal threaded hole (271), and the bolts are suitable for adjusting the distance between the fixed ring (27) and the extrusion ring (29).

2. The device for plugging holes of leaking steel bars in high pier and long-span prestressed T-beams according to claim 1 is characterized in that: The penetration structure (12) is a through hole or a chrysanthemum-shaped opening, and the diameter of the penetration structure (12) is 3 to 5 mm smaller than the size of the exposed steel bar.

3. The device for plugging holes of leaking steel bars in high pier and long span prestressed T-beams according to claim 2 is characterized in that: A nylon sheet or a polytetrafluoroethylene sheet is provided on one side of the body (11) opposite to the separate metal fixing ring (20).

4. The device for plugging holes of leaking steel bars in high pier and long span prestressed T-beams according to claim 1 is characterized in that: The mounting hole (21) is arranged on the semi-ring body 1 (22) and the semi-ring body 2 (23), and the mounting hole (21) is a rectangular hole or a waist-shaped hole. The mounting hole (21) is arranged parallel to the axis of the internal threaded hole 1 (24) / through hole 1 (25).

5. The device for plugging holes of leaking steel bars in high pier and long span prestressed T-beams according to claim 1 is characterized in that: The glue injection structure (30) and the exhaust structure (40) both comprise two symmetrically arranged PE membranes that are mutually attracted by electrostatic force.

6. The device for plugging holes of leaking steel bars in high pier and long span prestressed T-beams according to claim 5, characterized in that: The extrusion ring (29) is provided with a third internal threaded hole (292), and the third internal threaded hole (292) is located outside the glue injection structure (30) and the exhaust structure (40).

7. The device for plugging holes of leaking steel bars in high pier and long span prestressed T-beams according to claim 6 is characterized in that: When sealing a plurality of leaking steel bars, two adjacent separate metal fixing rings (20) are connected via a connecting rod (50), and the connecting rod (50) is a threaded rod with adjustable length.

8. A method for sealing a leaking steel bar hole in a high pier column and long-span prestressed T-beam according to claim 6, characterized in that: The blocking steps are as follows: Step 1: Device fabrication An internal threaded hole (24) is provided on the semi-annular body (22), and a through hole (25) is provided on the semi-annular body (23), wherein the through hole (25) and the internal threaded hole (24) are positioned correspondingly, and mounting holes (21) are provided on the semi-annular body (22) and the semi-annular body (23), wherein the mounting holes (21) are rectangular holes or waist-shaped holes and are arranged parallel to the axis of the internal threaded hole (24) / through hole (25); A second internal threaded hole (271) and a connecting hole (28) are provided on the fixing ring (27), a third internal threaded hole (292) and a second through hole (291) are provided on the extrusion ring (29), and an exhaust structure (40) and a glue injection structure (30) are installed at the root of the third internal threaded hole (292), and the second through hole (291) and the second internal threaded hole (271) are connected by bolts passing through them, and a butyl rubber skin (210) is installed in the filling cavity enclosed by the extrusion ring (29) and the fixing ring (27); Step 2: Installation of butyl rubber parts (10) The butyl rubber member (10) is placed on the outside of the exposed steel bar through the through-structure (12), and the butyl rubber member (10) is moved to be closely attached to the template; Step 3: Install the split metal fixing ring (20) Temporarily non-tightening the semi-ring body 1 (22) and the semi-ring body 2 (23) by bolts through the internal threaded hole 1 (24) and the through hole 1 (25); Then, the semi-ring body 1 (22) and the semi-ring body 2 (23) are first loosely fastened to the template through the mounting hole (21); Then, the semi-ring body 1 (22) and the semi-ring body 2 (23) are fastened and assembled by tightening bolts, and are pressed and fixedly sleeved on the deformed butyl rubber member (10) on the outer side of the exposed steel bar; Then tighten the bolts to fasten the main bodies (11) of the semi-ring body 1 (22) and the semi-ring body 2 (23) to the template, and the butyl rubber member (10) is now in a compressed state; A sealing ring is installed in the limiting groove surrounded by the semi-ring groove (26) of the semi-ring body 1 (22) and the semi-ring body 2 (23), and the fixing ring (27) is crimped and fixed to the separate metal fixing ring (20) by passing a bolt through the connecting hole (28) on the fixing ring (27); Step 4: Glue injection The third internal threaded hole (292) at the glue injection structure (30) is connected to a glue injection tube to inject glue into the filling cavity between the extrusion ring (29) and the fixed ring (27). During the glue injection, the two PE diaphragms of the exhaust structure (40) are located outside the second body (11). When the glue is injected into the two PE diaphragms of the exhaust structure (40), sealant is discharged; Install a short bolt through the third internal threaded hole (292) at the glue injection structure (30), first discharge the sealant from the two PE diaphragms of the exhaust structure (40), then push it into the filling cavity in the extrusion ring (29) in the reverse direction, apply sealant to the third internal threaded hole (292) at the exhaust structure (40) and seal it with the short bolt; Step 5: Gluing After the injection is completed, the bolts on the extrusion ring (29) are adjusted to gradually enter the inner threaded hole 3 (292), and the spacing between the extrusion ring (29) and the fixing ring (27) is adjusted to gradually decrease, so that the internal sealant squeezes the butyl rubber skin (210) and presses it against the outside of the exposed steel bar and squeezes the butyl rubber member (10) toward the side close to the template.

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