Construction joint reinforcing structure in reinforced concrete structure
By using side firmware composed of organ-like steel sheets and connecting plates and the middle reinforcement ribs in the reinforced concrete structure, the problem of insufficient strength and shear bearing capacity at the construction joints is solved, and the stability and safety of the structure are significantly improved. sex.
Patent Information
- Application Number
- CN202421015883.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The construction joints in existing reinforced concrete structures have poor strength and shear bearing capacity, which affects the safety of the concrete structure, especially when the gap position is poor due to design changes or extreme weather during construction.
Multiple steel bars of the same specifications are fixed in the construction joints, and reinforced by the side firmware composed of the organ-like steel sheet and the connecting plate. The connecting strength of the steel bars is improved by using the center reinforcement ribs and rotating plates, and the fixing sleeve is fixed by the fastening nuts. The ring is used to enhance the shear bearing capacity of the steel bars.
It effectively improves the strength and shear bearing capacity of the construction joints, and ensures the stability and safety of the reinforced concrete structure.
Smart Images
Figure CN222333350U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reinforced concrete structure reinforcement, in particular to a construction joint reinforcement structure in a reinforced concrete structure. Background Art
[0002] During the concrete pouring process, the concrete is poured in sections due to design requirements or construction needs, and the joint formed between the first and last poured concrete is the construction joint. The construction joint is not a real joint, but a weak defect surface formed at the connection between the first and last poured concrete. Its existence will reduce the tensile, shear, crack and impermeability properties of the concrete specimen. In general, the concrete of a construction section should be poured continuously to ensure the integrity of the concrete structure, but if the pouring area is too large, or in special construction procedures, such as semi-reverse construction, construction joints may be formed.
[0003] Although existing construction specifications have made provisions for the location of construction joints, requiring that construction joints should be placed at locations with less shear force as much as possible, temporary changes to design drawings are inevitable during the construction process. In the event of emergencies such as extreme weather, construction joints may be forced to be placed at locations with greater shear force, such as the ends of beams. The strength and shear bearing capacity of construction joints in existing reinforced concrete structures are poor, affecting the safety of concrete structures.
[0004] Therefore, it is necessary to provide a new construction joint reinforcement structure in reinforced concrete structure to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a construction joint reinforcement structure in a reinforced concrete structure.
[0006] The construction joint reinforcement structure in the reinforced concrete structure provided by the utility model comprises a steel bar and a construction joint, a plurality of steel bars of the same specification are fixedly embedded in the construction joint, and the plurality of steel bars of the same specification are arranged in parallel up and down:
[0007] The steel bars are provided with side fixtures, the side fixtures include accordion-shaped steel sheets, both ends of the accordion-shaped steel sheets are fixedly installed with integrally formed connecting plates, and each of the connecting plates is fixedly installed with a hooking arc sheet;
[0008] The side fixing members are provided with two groups, and a plurality of equally spaced middle connecting rods are fixedly mounted between the connecting plates in the two groups of side fixing members;
[0009] A central reinforcement rib is arranged between the side fixtures on the upper layer of steel bars and the side fixtures on the lower layer of steel bars.
[0010] Preferably, a threaded rod is fixedly mounted on the front end surface of the hook arc piece.
[0011] Preferably, the central reinforcement rib comprises a rotating plate, two rotating plates are provided, and the two rotating plates are distributed in an X shape and are rotatably connected by a pin shaft, and sleeve rings are fixedly installed at both ends of each rotating plate.
[0012] Preferably, the four collars in the central reinforcement rib are respectively sleeved on the threaded rods in the upper and lower side fasteners.
[0013] Preferably, a fastening nut for fastening the sleeve ring is sleeved on the threaded rod.
[0014] Preferably, the hook arc piece and the steel bar match each other.
[0015] Compared with the related art, the construction joint reinforcement structure in the reinforced concrete structure provided by the utility model has the following beneficial effects:
[0016] The utility model hooks two hook arc pieces on the front side of the side fixtures on the upper front steel bars, subsequently stretches the side fixtures so that the accordion-shaped steel sheets are stretched until the two hook arc pieces on the rear side of the side fixtures are hooked on the upper rear steel bars, and then releases the side fixtures. At this time, under the action of the elastic restoring force of the accordion-shaped steel sheets, the side fixtures are firmly hooked on the front and rear steel bars of the upper layer, thereby strengthening the strength of the construction joint in all directions, and subsequently the four sleeve rings in the central reinforcement bar are respectively sleeved on the threaded rods in the upper and lower side fixtures and then tightened with fastening nuts, so that the two groups of side fixtures in the upper steel bars and the two groups of side fixtures in the lower steel bars are fixedly connected to each other, and the strength of the upper and lower steel bars can be improved through the central reinforcement bar, thereby improving the strength and shear bearing capacity of the reinforced concrete construction joint structure, and ensuring the stability and safety of the reinforced concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a construction joint reinforcement structure in a reinforced concrete structure provided by the utility model;
[0018] Figure 2 for Figure 1 The structural schematic diagram of the construction joint shown;
[0019] Figure 3 for Figure 1 A schematic diagram of the installation structure of the middle reinforcement rib on the side fastener is shown;
[0020] Figure 4 for Figure 3 The structural diagram of the side firmware shown;
[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the reinforcement rib shown.
[0022] Numbers in the figure: 100, steel bar; 200, construction joint; 1, side fasteners; 11, accordion-shaped steel sheet; 12, connecting plate; 13, hook arc piece; 14, threaded rod; 2, center link rod; 3, center link reinforcement rib; 31, rotating plate; 32, sleeve ring; 4, fastening nut. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0025] See also Figures 1 to 5 The embodiment of the utility model provides a construction joint reinforcement structure in a reinforced concrete structure, and the construction joint reinforcement structure in the reinforced concrete structure includes: a steel bar 100, a construction joint 200, a side fixture 1 and a central reinforcement rib 3, and a plurality of the steel bars 100 with the same specifications are fixedly embedded in the construction joint 200, and the plurality of the steel bars 100 with the same specifications are arranged in parallel up and down.
[0026] In the embodiments of the present invention, please refer to Figure 1 , Figure 3 and Figure 4 The steel bar 100 is provided with a side fixture 1, specifically, the side fixture 1 includes an accordion-shaped steel sheet 11, both ends of the accordion-shaped steel sheet 11 are fixedly installed with an integrally formed connecting plate 12, and each connecting plate 12 is fixedly installed with a hooking arc piece 13, the hooking arc piece 13 matches the steel bar 100, and two groups of the side fixtures 1 are provided, and a plurality of equidistantly distributed middle connecting rods 2 are fixedly installed between the connecting plates 12 in the two groups of the side fixtures 1, and a threaded rod 14 is fixedly installed on the front end surface of the hooking arc piece 13.
[0027] It should be noted that: when reinforcing the construction joint in the reinforced concrete structure, the two hooking arc pieces 13 on the front side of the side fixture 1 are hooked on the upper front steel bar 100, and then the side fixture 1 is stretched so that the accordion-shaped steel sheet 11 is stretched until the two hooking arc pieces 13 on the rear side of the side fixture 1 are hooked on the upper rear steel bar 100, and then the side fixture 1 is released. At this time, under the action of the elastic restoring force of the accordion-shaped steel sheet 11, the side fixture 1 is firmly hooked on the upper front and rear steel bars 100, and then two groups of side fixtures 1 connected by the middle connecting rod 2 are installed on the lower steel bar 100 in the same way, so that the strength of the construction joint 200 can be strengthened in all directions.
[0028] In the embodiments of the present invention, please refer to Figure 1 , Figure 3 and Figure 5 A central reinforcement rib 3 is arranged between the side fixtures 1 on the upper layer of the steel bar 100 and the side fixtures 1 on the lower layer of the steel bar 100, and the central reinforcement rib 3 includes a rotating plate 31, two rotating plates 31 are provided, and the two rotating plates 31 are distributed in an X shape and are rotatably connected by a pin shaft, and a sleeve ring 32 is fixedly installed at both ends of each rotating plate 31, and the four sleeve rings in the central reinforcement rib 3 are respectively sleeved on the threaded rods 14 in the upper and lower side fixtures 1, and the threaded rods 14 are sleeved with fastening nuts 4 for fastening the sleeve rings 32.
[0029] It should be noted that: subsequently, the four rings in the central reinforcement rib 3 are respectively sleeved on the threaded rods 14 in the upper and lower side fixtures 1 and then fastened with the fastening nuts 4, so that the two groups of side fixtures 1 in the upper steel bars 100 and the two groups of side fixtures 1 in the lower steel bars 100 are fixedly connected to each other. The central reinforcement rib 3 can improve the strength of the upper and lower layers of steel bars 100, improve the strength and shear bearing capacity of the structure at the reinforced concrete construction joint 200, and ensure the stability and safety of the reinforced concrete structure.
[0030] The working principle of the construction joint reinforcement structure in the reinforced concrete structure provided by the utility model is as follows:
[0031] When reinforcing the construction joint in the reinforced concrete structure, the two hooking arc pieces 13 on the front side of the side fixture 1 are hooked on the upper front steel bar 100, and then the side fixture 1 is stretched so that the accordion-shaped steel sheet 11 is stretched until the two hooking arc pieces 13 on the rear side of the side fixture 1 are hooked on the upper rear steel bar 100, and then the side fixture 1 is released. At this time, under the action of the elastic restoring force of the accordion-shaped steel sheet 11, the side fixture 1 is firmly hooked on the upper front and rear steel bars 100, and then two sets of side fixtures 1 connected by the middle link rod 2 are installed on the lower steel bar 100 in the same way. Therefore, the strength of the construction joint 200 can be strengthened in all directions, and subsequently the four rings in the central reinforcement rib 3 are respectively sleeved on the threaded rods 14 in the upper and lower side fixtures 1 and fastened with the fastening nuts 4, so that the two groups of side fixtures 1 in the upper steel bars 100 and the two groups of side fixtures 1 in the lower steel bars 100 are fixedly connected to each other. The central reinforcement rib 3 can improve the strength of the upper and lower layers of steel bars 100, thereby improving the strength and shear bearing capacity of the structure at the reinforced concrete construction joint 200, and ensuring the stability and safety of the reinforced concrete structure.
[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A construction joint reinforcement structure in a reinforced concrete structure, comprising a steel bar (100) and a construction joint (200), wherein a plurality of the steel bars (100) of the same specification are fixedly embedded in the construction joint (200), and the plurality of the steel bars (100) of the same specification are arranged in parallel up and down, characterized in that: A side fixture (1) is mounted on the steel bar (100), the side fixture (1) comprising an accordion-shaped steel sheet (11), both ends of the accordion-shaped steel sheet (11) are fixedly mounted with an integrally formed connecting plate (12), and each connecting plate (12) is fixedly mounted with a hooking arc plate (13); Two groups of the side fixing members (1) are provided, and a plurality of equally spaced middle connecting rods (2) are fixedly mounted between the connecting plates (12) in the two groups of the side fixing members (1); A central reinforcing rib (3) is provided between the side fixing members (1) on the upper layer of the steel bars (100) and the side fixing members (1) on the lower layer of the steel bars (100).
2. The construction joint reinforcement structure in a reinforced concrete structure according to claim 1, characterized in that: A threaded rod (14) is fixedly mounted on the front end surface of the hook arc piece (13).
3. The construction joint reinforcement structure in a reinforced concrete structure according to claim 2, characterized in that: The central reinforcement rib (3) comprises a rotating plate (31), two rotating plates (31) are provided, and the two rotating plates (31) are distributed in an X shape and are rotatably connected via a pin shaft, and sleeve rings (32) are fixedly mounted at both ends of each rotating plate (31).
4. The construction joint reinforcement structure in a reinforced concrete structure according to claim 3, characterized in that: The four sleeves in the central reinforcing rib (3) are respectively sleeved on the threaded rods (14) in the upper and lower side fasteners (1).
5. The construction joint reinforcement structure in a reinforced concrete structure according to claim 4, characterized in that: The threaded rod (14) is sleeved with a fastening nut (4) for fastening the sleeve ring (32).
6. The construction joint reinforcement structure in a reinforced concrete structure according to claim 1, characterized in that: The hook arc piece (13) and the steel bar (100) match each other.