A continuous expansion reinforcing tape structure for an ultra-long concrete structure

By setting connectors and water-stop steel plates in ultra-long concrete structures to form a cross-rigid support system, the problems of long construction period of expansion reinforcement strips and poor stability of the interface between new and old concrete in traditional ultra-long concrete structures are solved, achieving efficient interface connection and waterproofing effect.

CN224351426UActive Publication Date: 2026-06-12SHAANXI CONSTR ZHANGXIONG (TIBET) CONSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI CONSTR ZHANGXIONG (TIBET) CONSTR CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional ultra-long concrete expansion reinforcement strip structures suffer from problems such as long construction periods and poor stability and seepage prevention at the interface between new and old concrete.

Method used

The structure adopts an ultra-long continuous expansion reinforcement strip structure. By setting connectors at the interface of both ends of the expansion reinforcement section, including interface connecting steel plates and water-stop steel plates, and using connector positioning tie rods and compensation positioning tie rods, a cross rigid support system is formed. Combined with the longitudinal keel steel bars and main reinforcement bars, an outer constraint frame is constructed to enhance the interface connection and waterproof performance.

Benefits of technology

It effectively improves the shear strength and waterproof performance of the interface, avoids structural weakness and leakage, ensures the integrity and durability of the connection between the expansion reinforcement and the ultra-long structure, and solves the problem of long construction period.

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Abstract

This utility model relates to the field of continuous expansion reinforcement strip technology, specifically disclosing a continuous expansion reinforcement strip structure for ultra-long concrete structures. It includes an expansion reinforcement section, with connectors at both ends of the expansion reinforcement section that match the interface of the ultra-long structure. The connectors are equipped with connector positioning pullers and compensating positioning pullers. The interface connecting steel plate is made of corrugated steel plate, which improves the shear resistance and overall bonding strength of the interface, avoiding structural weakness caused by interface separation. The water-stop steel plate also uses a corrugated steel plate structure, significantly improving the waterproof performance at the connection between the expansion reinforcement section and the ultra-long structure. The connector positioning pullers and compensating positioning pullers are fixed through through holes, forming a cross-rigid support system, preventing surface cracking of the ultra-long structure due to uneven settlement. This solves the problems of long construction periods, poor stability at the interface between new and old concrete, and poor seepage prevention effects inherent in traditional ultra-long concrete expansion reinforcement strip structures.
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Description

Technical Field

[0001] This utility model belongs to the technical field of continuous expansion reinforcement strips, specifically, it relates to a continuous expansion reinforcement strip structure for ultra-long concrete structures. Background Technology

[0002] With the development of construction technology, ultra-long concrete structures are increasingly used in large-scale municipal facilities and industrial buildings. These structures often face two core challenges: structural displacement caused by uneven foundation settlement and stress concentration due to temperature gradients during the hardening process of large-volume concrete. Especially in the construction of structures with spans exceeding 60 meters, whether it's the cold joint interface formed by segmented casting or the weak zone created by interruptions in material supply during continuous casting, without precise control measures, penetrating cracks are highly likely to occur. These cracks not only compromise the structural integrity but also penetrate the waterproofing layer, creating leakage channels and exposing underground works to the risk of groundwater erosion, significantly reducing the service life of the structure.

[0003] While the commonly used expansion joints, post-cast strips, or reinforcement strips can partially alleviate stress concentration, they have significant technological defects: the rubber waterstops of expansion joints are prone to leakage points due to installation errors; post-cast strips often cause delays in formwork removal due to the retention of the support system, and steel reinforcement corrosion and construction debris are difficult to clean thoroughly; intermittent reinforcement strips create weak areas due to improper treatment of the interface between new and old concrete. More seriously, these processes require staged concrete pouring, which forces a longer closure time for the post-cast sections, not only interrupting critical construction paths but also creating honeycomb and voids at the interface due to insufficient vibration, making these areas prone to seepage.

[0004] Based on this, the present invention proposes a continuous expansion reinforcement strip structure for ultra-long concrete structures to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a continuous expansion reinforcement strip structure for ultra-long concrete structures, so as to solve the problems of long construction period, poor stability and seepage prevention effect at the interface between new and old concrete in traditional ultra-long concrete expansion reinforcement strip structures.

[0006] To achieve the above objectives, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A continuous expansion reinforcement strip structure for ultra-long concrete structures is integrally and continuously cast in the middle of an ultra-long structure. It includes an expansion reinforcement section located in the middle of the ultra-long structure. Connectors are provided at both ends of the expansion reinforcement section to match the interfaces of the ultra-long structure. Each connector is equipped with a connector positioning tie and a compensation positioning tie. The connector positioning tie penetrates the expansion reinforcement section and extends to the inner side of the ultra-long structure, connecting to the compensation section concrete on its adjacent interface side. The compensation positioning tie penetrates the connector, with one end connected to the expansion reinforcement section and the other end connected to the compensation section concrete of the ultra-long structure.

[0008] In a preferred embodiment, the connector includes an interface connecting steel plate and a water-stop steel plate that are interconnected; the interface connecting steel plate is disposed between the interface of the expansion reinforcement and the extra-long structure, and is connected to both the expansion reinforcement and the extra-long structure; the water-stop steel plate is symmetrically distributed on both sides of the interface connecting steel plate, located in the middle of the interface connecting steel plate, and is perpendicular to the interface connecting steel plate.

[0009] In a preferred embodiment, the interface connecting steel plate is a corrugated steel plate, and a plurality of first interlocking protrusions and first engaging grooves are provided on the surface of the interface connecting steel plate.

[0010] In a preferred embodiment, the first engagement protrusion and the first engagement groove are arranged alternately along the height direction of the interface connecting steel plate.

[0011] In a preferred embodiment, the interface connecting steel plate is provided with a plurality of through holes evenly distributed along its length, and the through holes are matched with the connector positioning pull and the compensation positioning pull.

[0012] In a preferred embodiment, the waterstop steel plate is a corrugated steel plate, and a plurality of second engaging grooves and second engaging protrusions are provided on the surface of the waterstop steel plate.

[0013] In a preferred embodiment, the second engaging groove and the second engaging protrusion are arranged alternately along the horizontal direction of the waterstop steel plate.

[0014] In a preferred embodiment, the connector positioning tie includes a positioning bar and an anchoring bar; the positioning bar is a threaded bar that passes through the through hole, and a plurality of first positioning nuts are threadedly connected to the surface of the positioning bar, the first positioning nuts being located on both sides of the interface connecting steel plate; the anchoring bar is inclinedly arranged at both ends of the positioning bar to form a dovetail-shaped anchoring end structure.

[0015] In a preferred embodiment, the compensation positioning tie includes a tie bar, which is a threaded steel bar that passes through the through hole, and a plurality of second positioning nuts and anchor blocks are threadedly connected to the surface of the tie bar; the second positioning nuts are symmetrically arranged on the tie bar and are respectively located on both sides of the interface connecting steel plate; the anchor blocks are threadedly connected to both ends of the tie bar and are anchored in the expansion reinforcement on both sides of the connector and in the inner concrete of the extra-long structure after pouring.

[0016] In a preferred embodiment, the continuous expansion reinforcement strip structure of the ultra-long concrete structure further includes longitudinal reinforcing bars, which are arranged in the outer area of ​​the concrete of the expansion reinforcement section and the compensation section of the ultra-long structure, and the longitudinal direction of the longitudinal reinforcing bars is consistent with the overall extension direction of the structure and is reliably connected to the main reinforcement.

[0017] Compared with the prior art, this utility model provides a continuous expansion reinforcement strip structure for ultra-long concrete structures, which has the following beneficial effects:

[0018] 1. The interface connecting steel plate adopts a corrugated steel plate structure. The first interlocking protrusion and the first interlocking groove are set on the surface of the interface connecting steel plate. Through mechanical interlocking, it forms a tight connection with the expansion reinforcement and the concrete of the ultra-long structure, which effectively improves the shear resistance and overall bonding strength of the interface and avoids the structural weakness caused by interface separation.

[0019] 2. By using a corrugated steel plate structure for the water-stop steel plate, and setting a second interlocking groove and a second interlocking protrusion on the surface, the three-dimensional interlocking structure extends the water seepage path. Combined with its vertical arrangement with the interface connecting steel plate, a double water-blocking barrier is formed, which significantly improves the waterproof performance at the connection between the expansion reinforcement and the ultra-long structure, and avoids the reduction in structural durability caused by leakage.

[0020] 3. The connecting positioning tie and the compensating positioning tie are fixed through the through holes to form a cross rigid support system. The positioning nuts and anchoring structure can effectively resist radial deformation during concrete pouring and solidification, and disperse stress through the synergistic effect of multiple tie members, avoiding surface cracking of ultra-long structures caused by uneven settlement.

[0021] 4. The longitudinal reinforcing bars are connected to the main reinforcement bars of the ultra-long structure, forming an external constraint frame. This not only enhances the lateral stiffness of the interface between the expansion reinforcement and the ultra-long structure, but also disperses the lateral pressure during concrete pouring, ensuring the stability of the interface during pouring and the collaborative working ability of the structure after pouring. This solves the problems of long construction period, poor stability at the interface between new and old concrete, and poor seepage prevention effect of traditional ultra-long concrete expansion reinforcement structures. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the continuous expansion reinforcement strip structure of the ultra-long concrete structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the connector of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the positioning pull member of the connector of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the compensation and positioning pull member of this utility model.

[0027] [Explanation of Key Component Symbols]

[0028] 1. Expansion reinforcement section; 2. Extra-long structure; 3. Connector; 31. Interface connecting steel plate; 32. Water-stop steel plate; 33. First interlocking protrusion; 34. First interlocking groove; 35. Through hole; 36. Second interlocking groove; 37. Second interlocking protrusion; 4. Connector positioning tie; 41. Positioning bar; 42. Anchoring bar; 43. First positioning nut; 5. Main bar; 6. Longitudinal keel bar; 7. Compensating positioning tie; 71. Tie bar; 72. Second positioning nut; 73. Anchor block. Detailed Implementation

[0029] The structure of this ultra-long concrete continuous expansion reinforcement strip structure will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] The following is combined with Figures 1 to 4 This invention describes the structure of the continuous expansion reinforcement strip structure for ultra-long concrete structures.

[0035] A continuous expansion reinforcement strip structure for ultra-long concrete structures is integrally and continuously cast in the middle of an ultra-long structure 2. It includes an expansion reinforcement section 1 set in the middle of the ultra-long structure 2. Connectors 3 are provided at both ends of the expansion reinforcement section 1 to cooperate with the interface of the ultra-long structure 2. The connection between the expansion reinforcement section 1 and the interface of the ultra-long structure 2 is realized through the connectors 3. The connector 3 is also equipped with a connector positioning tie 4 and a compensation positioning tie 7. The connector positioning tie 4 penetrates the expansion reinforcement part 1 and extends to the inner side of the ultra-long structure 2 to connect with the compensation part concrete on the side of its adjacent interface. This is used to achieve an effective connection between the main body of the expansion reinforcement part 1 and the connector 3 and the ultra-long structure 2 to resist radial deformation. The compensation positioning tie 7 penetrates the connector 3, with one end connected to the expansion reinforcement part 1 and the other end connected to the compensation part concrete of the ultra-long structure 2. By strengthening the connection between the concrete of the expansion reinforcement part 1 and the compensation part concrete of the ultra-long structure 2, and with the setting of multiple compensation positioning tie 7, the integrity of the connection between the expansion reinforcement part 1 and the ultra-long structure 2 can be guaranteed after the concrete solidifies, effectively avoiding the problem of surface cracking of the ultra-long structure 2 caused by uneven settlement.

[0036] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the connector 3 includes a welded interface connecting steel plate 31 and a water-stop steel plate 32. The interface connecting steel plate 31 is positioned between the interface of the expansion reinforcement 1 and the extra-long structure 2, and remains connected to both. Through effective interlocking between its plate surface and the concrete, it ensures a reliable connection between the interface of the expansion reinforcement 1 and the extra-long structure 2 after pouring, avoiding structural weakness caused by interface separation. The water-stop steel plate 32 is symmetrically distributed on both sides of the interface connecting steel plate 31, located in the middle of its plate surface, and perpendicular to the interface connecting steel plate 31. This arrangement allows two water-stop zones perpendicular to the concrete of both sections to be formed in the connection area between the expansion reinforcement 1 and the extra-long structure 2 after pouring. Through the steel plate's blocking and extension path design, the waterproof performance of the interface is effectively improved, avoiding structural durability reduction caused by water seepage.

[0037] Specifically, such as Figure 2 As shown, the interface connecting steel plate 31 is a corrugated steel plate, and a plurality of first interlocking protrusions 33 and first engaging grooves 34 are alternately arranged on the surface of the interface connecting steel plate 31. The first interlocking protrusions 33 protrude from the steel plate surface in an array, while the first engaging grooves 34 are correspondingly recessed into the steel plate surface. The two are arranged alternately along the height direction of the steel plate, forming a surface morphology with a three-dimensional interlocking function. This design allows the interface connecting steel plate 31 to form a tight connection with the concrete on both sides through mechanical interlocking when embedded at the interface between the expansion reinforcement 1 and the ultra-long structure 2.

[0038] Specifically, both the first interlocking protrusion 33 and the first interlocking groove 34 are in direct contact with the interface concrete of the expansion reinforcement 1 and the ultra-long structure 2. Through the encapsulation effect during concrete pouring, a staggered fit structure is formed: the protrusion is embedded in the concrete to enhance shear resistance, while the groove is filled with concrete to form an overall embedded effect. This structure can effectively improve the bonding strength between the interface connecting steel plate 31 and the concrete interfaces on both sides, avoiding connection failure caused by interface slippage, thereby ensuring the overall load-bearing performance of the interface between the expansion reinforcement 1 and the ultra-long structure 2.

[0039] More specifically, a plurality of through holes 35 are evenly distributed along the length of the steel plate 31 at the interface. These through holes 35 are matched with the connecting positioning tie 4 and the compensating positioning tie 7, providing a through channel for both through the mechanical connection, and also providing a concrete flow channel (the connecting positioning tie 4 and the compensating positioning tie 7 are arranged according to actual needs, and there may be through holes 35 without the connecting positioning tie 4 and the compensating positioning tie 7 installed to form a concrete flow channel), ensuring the compaction effect of the concrete on both sides during vibration. The diameter and spacing of the through holes 35 are optimized to ensure that the connecting positioning tie 4 and the compensating positioning tie 7 can be smoothly installed, and the constraint effect of the steel plate on the tie enhances the stability of the overall structure, avoiding connection failure caused by the displacement of the tie before pouring.

[0040] Specifically, at the interface between the expansion reinforcement 1 and the extra-long structure 2, the connecting positioning tie 4 and the compensating positioning tie 7 form an interlaced fixing structure through the through hole 35: the connecting positioning tie 4 penetrates the expansion reinforcement 1 and extends to the inside of the extra-long structure 2, while the compensating positioning tie 7 penetrates the connecting piece 3 and connects the concrete of the compensating parts on both sides. This design can build a rigid support system at the interface before pouring, and through the synergistic effect of the tie and the steel plate, effectively constrains the interface deformation during the concrete pouring process, providing a reliable guarantee for the subsequent integral molding of concrete and stress transfer.

[0041] Specifically, such as Figure 2 As shown, the waterstop steel plate 32 is a corrugated steel plate, and a plurality of second engaging grooves 36 and second engaging protrusions 37 are alternately arranged on the surface of the waterstop steel plate 32. The second engaging protrusions 37 protrude from the surface of the steel plate in an array, while the second engaging grooves 36 are correspondingly recessed into the surface of the steel plate. The two are arranged alternately along the horizontal direction of the steel plate to form a surface morphology with a three-dimensional interlocking function. This corrugated structure and the concave-convex matching design enable the waterstop steel plate 32 to form a tight connection with the concrete on both sides of the interface between the expansion reinforcement part 1 and the ultra-long structure 2 through mechanical interlocking.

[0042] Specifically, the second interlocking protrusion 37, embedded within the concrete, enhances shear resistance, while the second interlocking groove 36, filled with concrete, forms an overall embedding effect. Together, they improve the bond strength between the waterstop steel plate 32 and the concrete interface. This three-dimensional interlocking structure not only strengthens the connection reliability of the waterstop steel plate 32 but also effectively blocks water penetration by extending the seepage path, thus simultaneously ensuring the water-stopping performance and structural integrity at the connection between the expansion reinforcement 1 and the ultra-long structure 2.

[0043] In a preferred embodiment, such as Figure 1 and Figure 3 As shown, the connecting positioning tie 4 includes a positioning rib 41 and an anchoring rib 42. The positioning rib 41 is a threaded steel bar that passes through the through hole 35 on the interface connecting steel plate 31. Its surface is provided with an external thread structure, and it is equipped with several first positioning nuts 43. During installation, the first positioning nuts 43 are screwed onto the positioning rib 41 by threads and are located on both sides of the interface connecting steel plate 31. Through the abutment action with the surface of the steel plate, the positioning rib 41 is axially positioned to ensure that it maintains a stable spatial position before pouring. The anchoring rib 42 is inclinedly welded to both ends of the positioning rib 41 to form a dovetail-shaped anchoring end structure. This inclined setting makes the anchoring rib 42 and the positioning rib 41 together form a three-dimensional anchoring system. After the concrete is poured, the dovetail-shaped structure can form a tight embedding with the surrounding concrete through mechanical interlocking, effectively improving the pull-out resistance of the positioning rib 41. Meanwhile, the inclination angle of the anchoring steel bar 42 has been optimized to further disperse the interface stress, enhance the connection reliability at the interface between the expansion reinforcement 1 and the ultra-long structure 2, and avoid structural separation problems caused by loosening of the tie members.

[0044] In a preferred embodiment, such as Figure 1 and Figure 4As shown, the compensation positioning tie 7 includes a tie bar 71, which is a threaded steel bar that passes through the through hole 35. The tie bar 71 has an external thread structure on its surface and is equipped with several second positioning nuts 72 and anchor blocks 73. The second positioning nuts 72 are symmetrically screwed onto the tie bar 71, located on both sides of the interface connecting steel plate 31. Through contact with the surface of the steel plate, they achieve precise axial positioning of the tie bar 71, ensuring it maintains a stable spatial position before pouring and avoiding connection failure due to displacement. The anchor blocks 73 are threaded to both ends of the tie bar 71, and after concrete pouring, the anchor blocks 73 are anchored in the expansion reinforcement 1 on both sides of the connector 3 and in the inner concrete of the extra-long structure 2, forming a stable three-dimensional anchoring structure. Through the mechanical interlocking of the anchor block 73 with the concrete, the pull-out resistance of the tie bar 71 can be significantly improved. At the same time, through the synergistic effect of the tie bar 71 and the interface connecting steel plate 31, the connection reliability of the interface between the expansion reinforcement 1 and the ultra-long structure 2 is further strengthened, effectively resisting the interface separation trend during the concrete solidification process and ensuring the integrity of the structure.

[0045] In a preferred embodiment, such as Figure 1 As shown, the continuous expansion reinforcement strip structure of the ultra-long concrete structure also includes longitudinal reinforcing bars 6. These longitudinal reinforcing bars 6, as key supporting components, are arranged on the outer side of the concrete of the expansion reinforcement section 1 and the compensation section of the ultra-long structure 2. Their longitudinal direction is consistent with the overall extension direction of the structure. Through reliable connection with the main reinforcing bars 5 of the ultra-long structure 2, a stable reinforcing steel skeleton system is formed, providing basic support for the interface stability between the expansion reinforcement section 1 and the ultra-long structure 2 during the pouring process.

[0046] Specifically, the longitudinal reinforcing bars 6 are connected to the main reinforcing bars 5 (i.e., the original longitudinal reinforcing bars of the ultra-long structure 2) by binding or welding to form an outer restraint frame. This connection method not only enhances the lateral stiffness of the interface between the expansion reinforcement 1 and the ultra-long structure 2, but also effectively disperses the lateral pressure during concrete pouring, avoiding interface deformation caused by the expansion of the concrete in the expansion reinforcement 1, thereby ensuring the overall stability and structural synergy of the expansion reinforcement 1 and the ultra-long structure 2 after pouring.

[0047] The construction process of the ultra-long concrete continuous expansion reinforcement strip structure described in this utility model is as follows:

[0048] First, at the location of the expansion reinforcement 1 in the middle of the super-long structure 2, install the connector 3, which is composed of an interface connecting steel plate 31 and a water-stop steel plate 32 welded together. The interface connecting steel plate 31 is a corrugated steel plate with a first interlocking protrusion 33, a first interlocking groove 34 and a through hole 35. The water-stop steel plate 32 is a corrugated steel plate with a second interlocking groove 36 and a second interlocking protrusion 37. Then, install the connector positioning tie 4 (including positioning bar 41, first positioning nut 43 and anchoring bar 42) and the compensation positioning tie 7 (including tie bar 71, second positioning nut 72 and anchoring block 73), and fix and adjust the position through the through hole 35. Then, install the longitudinal keel steel bar 6 and connect it with the main bar 5 of the super-long structure 2 to form the outer support frame. Finally, set up the formwork and pour the concrete of the expansion reinforcement 1 and the compensation part of the super-long structure 2 simultaneously. After the integral molding is completed, curing is carried out.

[0049] The working principle of the ultra-long concrete structure with continuous expansion reinforcement strip described in this utility model is as follows:

[0050] The connector 3 forms a mechanical interlock with the concrete on both sides through the corrugated surface and interlocking structure (first interlocking protrusion 33, first interlocking groove 34) of the interface connecting steel plate 31. The corrugated structure and interlocking structure (second interlocking groove 36, second interlocking protrusion 37) of the water-stop steel plate 32 achieves water stop by extending the seepage path. The connector positioning tie 4 and the compensation positioning tie 7 enhance the interface shear and pull-out resistance through the positioning nuts (first positioning nut 43, second positioning nut 72) and the anchoring structure (anchoring steel bar 42, anchoring block 73), resisting radial deformation and uneven settlement. After the longitudinal keel steel bar 6 is connected to the main reinforcement 5 of the ultra-long structure 2, it forms an outer constraint frame, disperses the lateral pressure of pouring and improves the overall stability. Finally, the synergistic effect of each component ensures the integrity and durability of the connection between the expansion reinforcement part 1 and the ultra-long structure 2.

[0051] It should be noted that the expansion reinforcement 1 is a structure formed by pouring expansion concrete, which serves to compensate for the shrinkage deformation of the concrete during the solidification process.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A continuous expansion reinforcing belt structure for an ultra-long concrete structure, integrally continuously cast in the middle of an ultra-long structure (2), characterized by, The structure includes an expansion reinforcement section (1) located in the middle of the super-long structure (2). Connectors (3) are provided at both ends of the expansion reinforcement section (1) to match the interfaces of the super-long structure (2). Connectors (3) are equipped with connector positioning pullers (4) and compensation positioning pullers (7). Connectors (4) penetrate the expansion reinforcement section (1) and extend to the inner side of the super-long structure (2) to connect with the compensation section concrete on the side adjacent to the interface. Compensation positioning pullers (7) penetrate the connector (3), with one end connected to the expansion reinforcement section (1) and the other end connected to the compensation section concrete of the super-long structure (2).

2. A continuous expansion reinforcing tape structure for an ultra-long concrete structure according to claim 1, wherein The connector (3) includes an interface connecting steel plate (31) and a water-stop steel plate (32) that are connected to each other; the interface connecting steel plate (31) is disposed between the interface of the expansion reinforcement (1) and the extra-long structure (2), and is connected to both the expansion reinforcement (1) and the extra-long structure (2); the water-stop steel plate (32) is symmetrically distributed on both sides of the interface connecting steel plate (31), located in the middle of the surface of the interface connecting steel plate (31), and is perpendicular to the interface connecting steel plate (31).

3. A continuous expansion reinforcing tape structure for an ultra-long concrete structure according to claim 2, wherein The interface connecting steel plate (31) is a corrugated steel plate, and a plurality of first interlocking protrusions (33) and first engaging grooves (34) are provided on the surface of the interface connecting steel plate (31).

4. A continuous expansion reinforcing tape structure for an ultra-long concrete structure according to claim 3, wherein The first engagement protrusion (33) and the first engagement groove (34) are arranged alternately along the height direction of the interface connecting steel plate (31).

5. The continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 3, characterized in that, The interface connecting steel plate (31) is provided with a plurality of through holes (35) evenly distributed along its length direction. The through holes (35) are matched with the connecting positioning pull (4) and the compensation positioning pull (7).

6. The continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 2, characterized in that, The waterstop steel plate (32) is a corrugated steel plate, and a number of second engaging grooves (36) and second engaging protrusions (37) are provided on the surface of the waterstop steel plate (32).

7. The continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 6, characterized in that, The second engaging groove (36) and the second engaging protrusion (37) are arranged alternately along the horizontal direction of the waterstop steel plate (32).

8. The continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 5, characterized in that, The connecting positioning puller (4) includes a positioning bar (41) and an anchoring bar (42); the positioning bar (41) is a threaded bar that passes through the through hole (35), and a plurality of first positioning nuts (43) are threadedly connected to the surface of the positioning bar (41), the first positioning nuts (43) being located on both sides of the interface connecting steel plate (31); the anchoring bar (42) is inclinedly arranged at both ends of the positioning bar (41) to form a dovetail-shaped anchoring end structure.

9. A continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 5, characterized in that, The compensation positioning tie (7) includes a tie bar (71), which is a threaded steel bar that passes through the through hole (35), and several second positioning nuts (72) and anchor blocks (73) are threadedly connected to the surface of the tie bar (71); the second positioning nuts (72) are symmetrically arranged on the tie bar (71) and located on both sides of the interface connecting steel plate (31); the anchor blocks (73) are threadedly connected to both ends of the tie bar (71) and are anchored in the expansion reinforcement part (1) on both sides of the connector (3) and the inner concrete of the extra-long structure (2) after pouring.

10. The continuous expansion reinforcement strip structure for ultra-long concrete structures as described in claim 1, characterized in that, The continuous expansion reinforcement strip structure of the ultra-long concrete structure also includes longitudinal keel steel bars (6), which are arranged on the outer side of the concrete of the expansion reinforcement part (1) and the compensation part of the ultra-long structure (2), and the longitudinal direction of the longitudinal keel steel bars (6) is consistent with the overall extension direction of the structure, and is reliably connected to the main reinforcement (5).