An assembled beam, plate and binding structure for reinforcing steel inside the assembled beam, plate
By fixing the reinforcing bars with limiting components and connectors, the problems of laborious and error-prone reinforcing bar binding in traditional prefabricated buildings are solved, achieving stable fixing of the reinforcing bars and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BUILDING MATERIALS TRADING GRP CO LTD
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-09
AI Technical Summary
In traditional prefabricated buildings, the binding of steel bars inside beams and slabs is laborious and prone to errors, affecting construction efficiency and building delivery time.
The steel bars are fixed by using limiting components and connectors, including a first connector and a limiting rod. The steel bars are stably fixed by sleeves and threaded connections, which reduces the time and error of stirrup binding.
It improves the stability of steel bars and construction efficiency, reduces labor intensity, reduces construction errors, and enhances construction efficiency.
Smart Images
Figure CN224338518U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated building technology, and in particular relates to a prefabricated beam and slab, and a binding structure for the internal steel bars of the prefabricated beam and slab. Background Technology
[0002] In prefabricated concrete frame structures, the binding structure of the internal reinforcement bars in beams and slabs often plays a decisive role in the structural performance of the prefabricated concrete frame structure, such as load-bearing capacity, structural stiffness, and seismic performance. It also profoundly influences the construction feasibility and methods of prefabricated concrete frame structures. With the continuous development of prefabricated buildings, the binding structure of the internal reinforcement bars in beams and slabs has been widely applied in various industries. In traditional construction, the internal reinforcement bars in beams and slabs are often tied together with stirrups using tie wire, and then the stirrups are wrapped in pairs with wire to prevent the reinforcement bars from shifting.
[0003] However, due to the large number of stirrups required, the time spent on formwork construction increased significantly. Furthermore, the lack of auxiliary tools during stirrup tying made it easy for errors to occur, resulting in considerable trouble when tying the stirrups and reinforcing bars. Moreover, the stiff binding wire made it difficult for workers to tie the stirrups, causing inconvenience and high work intensity, which affected the construction delivery schedule. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a prefabricated beam and slab and a binding structure for the internal steel bars of the prefabricated beam and slab, thereby solving the technical problems that binding stirrups is laborious, has high work intensity, and is prone to errors, thus affecting the construction delivery period.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0008] On one hand, this utility model embodiment provides a binding structure for internal reinforcing bars in prefabricated beams and slabs, including at least a limiting component. The limiting component includes a first connector and a limiting rod. The first connector includes a first sleeve and a second sleeve with their axes orthogonal to each other. The outer walls of the first sleeve and the second sleeve are connected to each other. The first sleeve is used to fit onto the reinforcing bar, and the second sleeve is used to fit onto the limiting rod. The limiting rod has a straight structure and is orthogonal to the reinforcing bar for connecting the reinforcing bar.
[0009] Furthermore, it also includes a second connector, which includes a third sleeve and a fourth sleeve arranged with their axes parallel, and a connecting column located between the third sleeve and the fourth sleeve for connecting the third sleeve and the fourth sleeve; the third sleeve and the fourth sleeve are used to respectively mount reinforcing bars.
[0010] Furthermore, a first set screw hole is provided on the side wall of the second sleeve, and multiple limit holes are provided on the limit rod. The multiple limit holes are arranged in a row on the limit rod. The diameter of the first set screw hole is the same as that of the limit holes. A thread is provided in the first set screw hole, and a set screw that matches it is provided in the first set screw hole.
[0011] Furthermore, multiple limiting holes are set in groups, and multiple limiting holes in each group are arranged at equal intervals.
[0012] Furthermore, a second set screw hole is provided on the side wall of the third sleeve, the second set screw hole has threads and is equipped with a set screw that matches it; a third set screw hole is provided on the side wall of the fourth sleeve, the third set screw hole has threads and is equipped with a set screw that matches it.
[0013] Furthermore, O-ring rubber pads are provided on both ends of the third and fourth sleeves.
[0014] Furthermore, the first and second connectors are made of 45# steel.
[0015] On the other hand, this utility model embodiment also provides a prefabricated beam and slab, including a binding structure for the internal reinforcement of the prefabricated beam and slab, the beam and the slab, wherein multiple reinforcement bars are embedded in the beam and arranged in a rectangular shape along its cross section; multiple reinforcement bars are embedded in the slab and arranged in a rectangular shape along its cross section; the reinforcement bars located at the rectangular edge in the beam or slab are fixed by multiple limiting components, a first sleeve is sleeved on the outside of the reinforcement bars, and the limiting rod of the binding structure is connected to the multiple reinforcement bars on the outside of the reinforcement bars through multiple second sleeves.
[0016] Furthermore, two reinforcing bars are provided at the vertices of the rectangle in the beam or slab. Both reinforcing bars at the vertices of the rectangle are fixed by the second connector. The third and fourth sleeves are respectively fitted on the outside of the two reinforcing bars. At this time, the connecting column is located on the outside of the rectangle.
[0017] Furthermore, grouting material was injected into the first, third, and fourth casings.
[0018] (III) Beneficial Effects
[0019] The beneficial effects of this utility model are:
[0020] This utility model discloses a prefabricated beam and slab, and a binding structure for the internal reinforcement of prefabricated beams and slabs. Multiple rectangularly arranged reinforcing bars are embedded in the beam and slab, respectively. The reinforcing bars located at the edges of the rectangles in the beam or slab are fixed by multiple limiting components. Each limiting component includes a first connector and a limiting rod. The first connector includes a first sleeve and a second sleeve with orthogonal axes, connected at the middle of their outer walls. The limiting rod is a straight structure orthogonal to the reinforcing bars. During fixing, the first sleeve is fitted over the outside of the reinforcing bars, and the limiting rod connects to multiple reinforcing bars through multiple second sleeves on the outside of the reinforcing bars. Compared to existing technologies, the fixing method of the limiting components facilitates construction work, reduces errors, and significantly improves the stability of the internal reinforcement of beams and slabs. Simultaneously, the first connector significantly reduces the time spent connecting stirrups with wire, reducing workload and improving construction efficiency. Attached Figure Description
[0021] Figure 1 A schematic diagram of the binding structure of internal steel bars in prefabricated beams and slabs;
[0022] Figure 2 This is a structural schematic diagram of the first connector;
[0023] Figure 3 This is a schematic diagram of the limit rod structure;
[0024] Figure 4 This is a schematic diagram of the second connector.
[0025] [Explanation of Labels in the Attached Image]
[0026] 1: Limiting component; 11: First connector; 111: First sleeve; 112: Second sleeve; 1121: First set screw hole; 12: Limiting rod; 121: Limiting hole;
[0027] 2: Reinforcing steel bars;
[0028] 3: Second connector; 31: Third sleeve; 311: Second set screw hole; 32: Fourth sleeve; 321: Third set screw hole; 33: Connecting post. Detailed Implementation
[0029] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] like Figure 1As shown, this utility model provides a prefabricated beam and slab, including a binding structure for the internal reinforcement of the prefabricated beam and slab, the beam, and the slab. Multiple reinforcing bars 2 are embedded in the beam, arranged in a rectangular pattern along its cross-section. Multiple reinforcing bars 2 are also embedded in the slab, arranged in a rectangular pattern along its cross-section. Two reinforcing bars 2 are located at the vertices of the rectangles in the beam or slab.
[0031] Preferably, multiple reinforcing bars 2 located at the rectangular edges in the beam or slab are arranged at equal intervals, which makes it easier to install the tied structure.
[0032] like Figure 1-4 As shown, this utility model also provides a binding structure for the internal reinforcement of prefabricated beams and slabs, such as... Figure 1 As shown, it includes at least a limiting component 1 and a second connecting member 3. The limiting component 1 includes a first connecting member 11 and a limiting rod 12. Figure 1 , Figure 2 As shown, the first connector 11 includes a first sleeve 111 and a second sleeve 112 with their axes orthogonal to each other. The outer walls of the first sleeve 111 and the second sleeve 112 are connected to each other. The inner diameter of the first sleeve 111 is adapted to the diameter of the reinforcing bar 2 and is used to be sleeved on the reinforcing bar 2. The second sleeve 112 is used to sleeve the limiting rod 12.
[0033] like Figure 1 , Figure 3 As shown, the limiting rod 12 has a straight structure and is orthogonal to the reinforcing bar 2, used to connect the reinforcing bar 2. The limiting rod 12 is used to replace the stirrups in the prior art and is used to connect the reinforcing bars of the main reinforcing bars and the reinforcing bars of the compression zone concrete skeleton.
[0034] like Figure 1 , Figure 4 As shown, the second connector 3 includes a third sleeve 31 and a fourth sleeve 32 arranged with their axes parallel, and a connecting post 33 located between the third sleeve 31 and the fourth sleeve 32 for connecting the third sleeve 31 and the fourth sleeve 32. The inner diameter of the third sleeve 31 and the fourth sleeve 32 is adapted to the diameter of the reinforcing bar 2 and is used to be sleeved on the reinforcing bar 2.
[0035] Preferably, the diameter of the connecting post 33 is the same as the outer diameter of the third sleeve 31 and the fourth sleeve 32, the central axis of the third sleeve 31 and the fourth sleeve 32 is parallel to the central axis of the connecting post 33, and the central axis of the third sleeve 31 and the fourth sleeve 32 is perpendicular to the plane containing the central axis of the connecting post 33.
[0036] When installing the tying structure, such as Figure 1As shown, the reinforcing bars 2 located at the rectangular edges in the beam or slab are fixed by multiple limiting components 1. Specifically, the first sleeve 111 is fitted onto the outside of the reinforcing bar 2, and the limiting rod 12 connects multiple reinforcing bars 2 to the outside of the reinforcing bar 2 through multiple second sleeves 112 to limit the reinforcing bar 2. Two reinforcing bars 2 located at the vertices of the rectangle in the beam or slab are fixed by the second connector 3, and the third sleeve 31 and the fourth sleeve 32 are respectively fitted onto the outside of the two reinforcing bars 2 to limit the reinforcing bars 2. At this time, the connecting column 33 is located outside the rectangle.
[0037] Furthermore, such as Figure 2 As shown, a first set screw hole 1121 is provided on the side wall of the second sleeve 112, correspondingly, as... Figure 3 As shown, the limiting rod 12 has multiple limiting holes 121 arranged in a row. The first set screw hole 1121 has the same diameter as the limiting hole 121, and the first set screw hole 1121 has threads and is fitted with a matching set screw. After tightening the set screw, the first connecting piece 11 is fixed to the limiting rod 12, eliminating the need for binding or welding and improving assembly efficiency.
[0038] Preferably, multiple limiting holes 121 are arranged in groups, and the multiple limiting holes 121 in each group are equidistant. The limiting holes 421 can be selected according to the distance between two adjacent reinforcing bars 2.
[0039] like Figure 4 As shown, the third sleeve 31 has a second set screw hole 311 on its side wall, with threads inside the second set screw hole 311 and a matching set screw. The fourth sleeve 32 has a third set screw hole 321 on its side wall, with threads inside the third set screw hole 321 and a matching set screw. Tightening the set screws in the second set screw hole 311 and the third set screw hole 321 fixes the second connector 3 to the reinforcing bar 2, eliminating the need for binding or welding and improving fixing efficiency.
[0040] Preferably, in order to increase the fixing strength between the first connector 11 and the second connector 3 and the reinforcing bar 2 embedded therein, after the first connector 11 and the second connector 3 are installed, grouting material is injected into the first sleeve 111, the third sleeve 31 and the fourth sleeve 32, which can increase the fixing strength of the first connector 11 and the second connector 3.
[0041] To prevent hard contact between the first connector 11 and the second connector 3, which would cause wear on both connectors, O-ring rubber pads (not shown in the figure) are provided on the end faces of the third sleeve 31 and the fourth sleeve 32. In this way, the first connector 11, which contacts the end face of the second connector 3, will form a soft connection with the second connector 3, thus protecting both of them.
[0042] Preferably, the first connector 11 and the second connector 3 are made of 45# steel. This satisfies the strength requirements without being affected by the chemical composition of the steel reinforcement.
[0043] Working principle: When installing the binding structure in beams and slabs, firstly, a first connector 11 is installed on the outside of each reinforcing bar 2, ensuring all first connectors 11 are at the same height. Each reinforcing bar 2 is then inserted into the first sleeve 111 of its corresponding first connector 11. Next, a limiting rod 12 is simultaneously inserted into the second sleeve 112 of the first connector 11 located on the same side of the rectangle. A set screw is used to fix the first set screw hole 1121 to the corresponding limiting hole 121. Then, second connectors 3 are installed on two reinforcing bars 2 located at the vertices of the rectangle at the same height. The two reinforcing bars at the vertices are then inserted into the third sleeve 31 and fourth sleeve 32 of the same second connector 3, respectively. Set screws are used to fix the second set screw hole 311 on the third sleeve 31 and the third set screw hole 321 on the fourth sleeve 32. Finally, grout is injected into the first sleeve 111, third sleeve 31, and fourth sleeve 32, thus completing the fixing of the reinforcing bars 2 at the same height. By doing so, the reinforcing bar 2 can be fixed at different heights.
[0044] Using the fixing method for the binding structure of internal steel bars in prefabricated beams and slabs, steel bars of any length can be fixed to meet different working conditions.
[0045] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A binding structure for internal reinforcing bars in prefabricated beams and slabs, characterized in that, It includes at least a limiting component (1), which includes a first connector (11) and a limiting rod (12). The first connector (11) includes a first sleeve (111) and a second sleeve (112) with their axes orthogonal to each other. The outer walls of the first sleeve (111) and the second sleeve (112) are connected to each other. The first sleeve (111) is used to fit onto the reinforcing bar (2), and the second sleeve (112) is used to fit onto the limiting rod (12). The limiting rod (12) has a straight structure and is orthogonal to the reinforcing bar (2) for connecting the reinforcing bar (2).
2. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 1, characterized in that, It also includes a second connector (3), which includes a third sleeve (31) and a fourth sleeve (32) arranged with their axes parallel to each other, and a connecting post (33) located between the third sleeve (31) and the fourth sleeve (32) for connecting the third sleeve (31) and the fourth sleeve (32). The third sleeve (31) and the fourth sleeve (32) are used to respectively sleeve the reinforcing bar (2).
3. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 1, characterized in that, The second sleeve (112) has a first set screw hole (1121) on its side wall. The limiting rod (12) has multiple limiting holes (121) arranged in a row on the limiting rod (12). The diameter of the first set screw hole (1121) is the same as that of the limiting hole (121). The first set screw hole (1121) has threads and is equipped with a matching set screw.
4. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 3, characterized in that, Multiple limiting holes (121) are arranged in groups, and multiple limiting holes (121) in each group are arranged at equal intervals.
5. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 2, characterized in that, The third sleeve (31) has a second set screw hole (311) on its side wall. The second set screw hole (311) has a thread and a set screw that matches it. The fourth sleeve (32) has a third set screw hole (321) on its side wall. The third set screw hole (321) has threads and is equipped with a set screw that is compatible with it.
6. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 2, characterized in that, O-ring rubber pads are provided on both ends of the third sleeve (31) and the fourth sleeve (32).
7. The binding structure for internal reinforcement of prefabricated beams and slabs according to claim 2, characterized in that, The first connector (11) and the second connector (3) are made of No. 45 steel.
8. A prefabricated beam or slab, characterized in that, Includes the binding structure for internal reinforcement of prefabricated beams and slabs as described in any one of claims 1-7, the beams and slabs having a plurality of steel bars (2) embedded therein, the plurality of steel bars (2) being arranged in a rectangular manner along the cross section of the beam; The plate is embedded with a plurality of steel bars (2), and the plurality of steel bars (2) are arranged in a rectangular shape along the cross section of the plate; The steel bars (2) located at the rectangular edge in the beam or the slab are fixed by a plurality of limiting components (1), the first sleeve (111) is sleeved on the outside of the steel bars (2), and the limiting rod (12) of the binding structure is connected to a plurality of steel bars (2) on the outside of the steel bars (2) through a plurality of second sleeves (112).
9. The prefabricated beams and slabs according to claim 8, characterized in that, Two steel bars (2) are provided at the vertices of the rectangle in the beam or the slab. Both steel bars (2) at the vertices of the rectangle in the beam or the slab are fixed by the second connector (3). The third sleeve (31) and the fourth sleeve (32) are respectively sleeved on the outside of the two steel bars (2). At this time, the connecting column (33) is located on the outside of the rectangle.
10. The prefabricated beams and slabs according to claim 8, characterized in that, Grouting material is injected into the first sleeve (111), the third sleeve (31) and the fourth sleeve (32).