Reinforcing and repairing structure for concrete construction joint
By installing supports, support rods, and a cross-shaped mesh of horizontal and vertical reinforcement at the concrete construction joint, combined with the subsequent pouring of concrete, the problem of easy cracking in traditional repair methods is solved, and a more efficient joint repair effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional methods of repairing concrete construction joints are prone to cracking again when subjected to loads, resulting in low repair efficiency.
Two rows of supports are bolted together, with support rods and horizontal and vertical reinforcement bars arranged in a cross pattern to form a mesh structure. The supports are locked in place by support blocks and tie rods, and combined with the post-poured concrete to form a reinforced concrete consolidation body, thereby enhancing the strength and stability of the construction joint.
It improves the strength and stability of concrete construction joints, enhances the repair effect, and prevents the recurrence of cracks.
Smart Images

Figure CN224149228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a reinforcement and repair structure for concrete construction joints. Background Technology
[0002] During the concrete pouring process, if the concrete is poured in sections due to design requirements or construction needs, the joint formed between the concrete poured one after the other is called a construction joint. A construction joint is not a real crack, but a weak and defective surface formed at the connection between the concrete poured one after the other. Its existence will reduce the tensile, shear, crack, and impermeability properties of the concrete specimen. Under normal circumstances, the concrete of a construction section should be poured continuously to ensure the integrity of the concrete structure. However, if the pouring area is too large, or under special construction procedures, such as semi-reverse construction, a construction joint may be formed.
[0003] Traditional methods for repairing cracks in concrete structures typically involve simply injecting epoxy resin into the crack to repair it. However, when the area around the crack is subjected to load again and the concrete structure is stretched, the crack will reopen. This repair method is inefficient. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, a reinforcement and repair structure for concrete construction joints is provided to solve the problem that concrete construction joints are prone to cracking again under load after being repaired using traditional concrete structure crack repair methods.
[0005] To achieve the above objectives, a reinforcement and repair structure for concrete construction joints is provided, comprising:
[0006] Two rows of supports are bolted to the concrete structure, and the two rows of supports are respectively set on opposite sides of the construction joint of the concrete structure;
[0007] Support rods, one support rod is installed on each row of supports;
[0008] Multiple horizontal ribs, the two ends of which are respectively connected to the support rods on the two rows of supports, and the multiple horizontal ribs are spaced apart along the length direction of the support rods;
[0009] Multiple longitudinal bars are provided, which are arranged to intersect with the transverse bars. The longitudinal bars are connected to the multiple transverse bars, and the multiple longitudinal bars are spaced apart along the length direction of the transverse bars.
[0010] Furthermore, a support block is embedded between two adjacent transverse ribs. One side of the support block is installed on the longitudinal rib, and a counter-pressure flange is formed on the other side of the support block away from the longitudinal rib. The counter-pressure flange presses against the side of the transverse rib away from the longitudinal rib.
[0011] Furthermore, the longitudinal rib has a strip-shaped through hole, which is arranged along the length of the longitudinal rib. A tie rod is connected to one side of the support block. The tie rod is movably inserted through the strip-shaped through hole. The end of the tie rod away from the support block extends to the side of the longitudinal rib away from the transverse rib and is fitted with a pressing member. The pressing member presses against one side of the longitudinal rib.
[0012] Furthermore, one end of the pull rod is formed with an external thread, and the pressing member has a threaded hole, and the pull rod is screwed into the threaded hole of the pressing member.
[0013] Furthermore, the concrete structure has two parallel grooves and a connecting groove. The two parallel grooves are respectively located on opposite sides of the construction joint, and the connecting groove connects the two parallel grooves and runs across the construction joint. The two rows of supports are respectively installed in the two parallel grooves, and the multiple transverse reinforcing bars are arranged in the connecting groove. The parallel grooves and the connecting groove are filled with post-cast concrete, which covers the supports, the support rods, the transverse reinforcing bars, and the longitudinal reinforcing bars.
[0014] The beneficial effects of this utility model are as follows: the reinforcement and repair structure for concrete construction joints of this utility model involves installing multiple supports onto the concrete structure using bolts. Before installing the support rods on each row of supports, the transverse reinforcement bars are installed onto the support rods using arc-shaped plates, and then the longitudinal reinforcement bars are attached to one side of the multiple transverse reinforcement bars. Support blocks are embedded between adjacent transverse reinforcement bars, and the tie rods on the support blocks extend through strip-shaped holes to the outside of the longitudinal reinforcement bars and are locked to the longitudinal reinforcement bars by pressing members. In this way, the transverse and longitudinal reinforcement bars form a mesh structure, thereby improving the strength and stability of the concrete construction joint and achieving a better repair effect. Attached Figure Description
[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0016] Figure 1 This is a schematic diagram of the reinforcement and repair structure for concrete construction joints according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the support block in an embodiment of the present invention.
[0018] Figure label:
[0019] Support 1, Bolt 11, Support rod 2, Horizontal rib 3, Longitudinal rib 4, Support block 5, Counter-pressure flange 51, Tie rod 52, Pressing component 53. Detailed Implementation
[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] Reference Figure 1 and Figure 2 As shown, this utility model provides a reinforcement and repair structure for concrete construction joints, including: a support 1, a support rod 2, a transverse bar 3, and a longitudinal bar 4.
[0023] In this embodiment, there are multiple supports 1. These supports 1 are arranged in two rows. Each support 1 is installed on the concrete structure using bolts 11. The two rows of supports 1 are respectively located on opposite sides of the construction joint in the concrete structure. One row of supports 1 is provided on each side of the construction joint. Multiple supports 1 in each row are spaced apart along the length of the construction joint.
[0024] Each row of supports 1 is equipped with a support rod 2. The support rods 2 on both rows of supports 1 are arranged in the same direction. In this embodiment, a collar is formed on the upper part of the support 1. The support rod 2 passes through the collar.
[0025] There are multiple horizontal reinforcing bars 3. The two ends of each horizontal reinforcing bar 3 are connected to the support rods 2 on the two rows of supports 1. The multiple horizontal reinforcing bars 3 are spaced apart along the length of the support rods 2.
[0026] In this embodiment, each end of the transverse rib 3 is formed with two arc-shaped plates. The inner arc surfaces of the two arc-shaped plates are arranged opposite each other. A through hole is formed between the two arc-shaped plates. The support rod 2 passes through the through hole.
[0027] The curved plate has two opposite ends in its arc direction. One end of the curved plate is connected to the transverse rib 3. The other end of the curved plate has an ear plate. The ear plates of the two curved plates are connected together by bolts 11.
[0028] There are multiple longitudinal bars 4. The longitudinal bars 4 are arranged intersecting with the transverse bars 3. The longitudinal bars 4 are connected to multiple transverse bars 3. The multiple longitudinal bars 4 are spaced apart along the length of the transverse bars 3.
[0029] In this embodiment, the longitudinal reinforcement 4 is attached to one side of the multiple transverse reinforcements 3.
[0030] The support block 5 is embedded between two adjacent transverse reinforcements 3. One side of the support block 5 is installed on one side of the longitudinal reinforcement 4. A counter-pressure flange 51 is formed on the other side of the support block 5 away from the longitudinal reinforcement 4. The counter-pressure flange 51 presses against the side of the transverse reinforcement 3 away from the longitudinal reinforcement 4.
[0031] In a preferred embodiment, the longitudinal rib 4 has a strip-shaped through hole. The strip-shaped through hole is arranged along the length direction of the longitudinal rib 4. A tie rod 52 is connected to one side of the support block 5. The tie rod 52 is movably inserted through the strip-shaped through hole. The end of the tie rod 52 away from the support block 5 extends to the outside of the side of the longitudinal rib 4 away from the transverse rib 3. A pressing member 53 is installed at one end of the tie rod 52. The pressing member 53 presses against one side of the longitudinal rib 4.
[0032] In this embodiment, one end of the pull rod 52 has an external thread. The pressing member 53 has a threaded hole. The pull rod 52 is screwed into the threaded hole of the pressing member 53.
[0033] In a preferred embodiment, the concrete structure includes two parallel groove segments and a connecting groove segment. The two parallel groove segments are respectively located on opposite sides of the construction joint. The connecting groove segment connects the two parallel groove segments and traverses the construction joint. The two parallel groove segments and the connecting groove segment form an I-shaped groove.
[0034] Two rows of supports 1 are installed in two parallel groove sections. Support rods 2 are installed along the entire length of the parallel groove sections. The length of support rods 2 is adapted to the length of the parallel groove sections. Multiple transverse reinforcing bars 3 are installed in the connecting groove section. The parallel groove sections and the connecting groove section are filled with post-cast concrete. The post-cast concrete covers the supports 1, support rods 2, transverse reinforcing bars 3, and longitudinal reinforcing bars 4.
[0035] The connecting groove is centrally located in the middle of the parallel groove. The width of the connecting groove is less than the length of the parallel groove. After the post-cast concrete is poured into the I-shaped groove, it solidifies to form a dumbbell-shaped reinforced concrete solidified body.
[0036] In use, multiple supports are bolted to the bottom of two parallel groove sections. Before installing the support rods on each row of supports, the transverse reinforcements are installed on the support rods using curved plates, and then the longitudinal reinforcements are attached to one side of the transverse reinforcements. Support blocks are embedded between adjacent transverse reinforcements, with tie rods on the support blocks extending through strip holes to the outside of the longitudinal reinforcements and locked to the longitudinal reinforcements by clamping members. In this way, the transverse and longitudinal reinforcements form a mesh structure, thereby improving the strength and stability of the concrete construction joint and providing better repair results.
[0037] On the other hand, by creating I-shaped grooves in the concrete structure and pouring post-cast concrete, the repair quality of concrete construction joints can be improved.
[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A reinforcing repair structure for a concrete construction joint, characterized by, include: Two rows of supports are bolted to the concrete structure, and the two rows of supports are respectively set on opposite sides of the construction joint of the concrete structure; Support rods, one support rod is installed on each row of supports; Multiple horizontal ribs, the two ends of which are respectively connected to the support rods on the two rows of supports, and the multiple horizontal ribs are spaced apart along the length direction of the support rods; Multiple longitudinal bars are provided, which are arranged to intersect with the transverse bars. The longitudinal bars are connected to the multiple transverse bars, and the multiple longitudinal bars are spaced apart along the length direction of the transverse bars.
2. The reinforced repair structure of a concrete construction joint according to claim 1, characterized in that, A support block is embedded between two adjacent transverse ribs. One side of the support block is installed on the longitudinal rib, and a counter-pressure flange is formed on the other side of the support block away from the longitudinal rib. The counter-pressure flange presses against the side of the transverse rib away from the longitudinal rib.
3. The reinforced repair structure of a concrete construction joint according to claim 2, characterized in that, The longitudinal rib has a strip-shaped through hole, which is arranged along the length of the longitudinal rib. A tie rod is connected to one side of the support block. The tie rod is movably inserted through the strip-shaped through hole. The end of the tie rod away from the support block extends to the side of the longitudinal rib away from the transverse rib and is fitted with a pressing member. The pressing member presses against one side of the longitudinal rib.
4. The reinforced repair structure of a concrete construction joint according to claim 3, characterized in that, One end of the pull rod has an external thread, and the pressing member has a threaded hole. The pull rod is screwed into the threaded hole of the pressing member.
5. The reinforced repair structure of a concrete construction joint according to claim 1, characterized by, The concrete structure has two parallel grooves and a connecting groove. The two parallel grooves are respectively located on opposite sides of the construction joint. The connecting groove connects the two parallel grooves and runs across the construction joint. The two rows of supports are respectively installed in the two parallel grooves. The multiple transverse reinforcing bars are located in the connecting groove. The parallel grooves and the connecting groove are filled with post-cast concrete, which covers the supports, the support rods, the transverse reinforcing bars, and the longitudinal reinforcing bars.