Connecting joint of precast beam and precast column
By designing the connection nodes between prefabricated beams and prefabricated columns, the matching shape of the anchor head and the anchor joint groove is used to achieve a stable connection, which solves the problem of the inability to disassemble and reuse of existing concrete building components, improves construction efficiency and connection strength, and is environmentally friendly.
Patent Information
- Application Number
- CN202421439960.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The beam and column connection method of existing concrete buildings makes it impossible to disassemble and reuse the components, and the construction period is long and the environmental pollution is serious.
A connection node between prefabricated beam and prefabricated column is designed. By setting a connecting joint on the prefabricated column and prefabricated anchor head and reinforcement are embedded in the prefabricated beam, the matching shape of the anchor head and the anchor joint groove is used to achieve a stable connection between prefabricated beam and prefabricated column.
Repeated disassembly and multiple uses of prefabricated beams and prefabricated columns are realized, the construction process is simplified, wet work is reduced, connection strength and bending moment resistance are improved, and environmentally friendly.
Smart Images
Figure CN222649067U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of prefabricated buildings, and in particular to a connection node between a prefabricated beam and a prefabricated column. Background Art
[0002] At present, in order to meet the needs of production and manufacturing, there are a large number of temporary buildings. Temporary building structures are usually assembled from container structures or overlapped with color steel plates. They have poor sound insulation, weak structural bearing capacity and are prone to rust. Compared with concrete buildings, the living experience is poor.
[0003] The beam and column connections of conventional concrete buildings are generally connected by integral pouring of steel bars and concrete. After the beam and column steel bars are tied at the nodes, the concrete is poured. This method is to pour concrete on site, which involves a lot of wet work, requires a support system to be set up on site, has a long construction period, and after the concrete is poured, the components cannot be disassembled and reused.
[0004] The beam and column connections of conventional prefabricated buildings usually involve hoisting precast beams and overlapping the ends of the precast beams on top of precast columns, then pouring grouting material at the connection nodes formed between the precast beams and the precast columns to achieve a stable connection between the beams and columns. Similarly, the connection nodes formed by cast-in-place make it impossible to disassemble and reuse the beam and column structures. Utility Model Content
[0005] In order to improve the problem that beam and column components of concrete buildings are difficult to disassemble and reuse, the present application provides a connection node between a prefabricated beam and a prefabricated column.
[0006] The present application provides a connection node between a prefabricated beam and a prefabricated column, which adopts the following technical solution:
[0007] A connection node between a prefabricated beam and a prefabricated column, comprising a prefabricated column and a prefabricated beam overlapped on the prefabricated column, wherein a connection joint is arranged at the top of the prefabricated column;
[0008] A plurality of anchoring grooves are arranged around the connection joint, and an anchoring head is fixed to the end of the precast beam. The anchoring head is used to be inserted into the anchoring groove from the top end of the connection joint, and the anchoring head is horizontally limited in the anchoring groove.
[0009] Furthermore, the shapes of the anchor head and the anchor groove match each other, and when the anchor head is inserted into the anchor groove, the side walls of the anchor head are in contact with the side walls of the anchor groove.
[0010] Furthermore, the connection joint includes a bottom plate and a vertical plate group perpendicular to the bottom plate.
[0011] Furthermore, the base plate and the prefabricated columns are anchored by bolts.
[0012] Furthermore, a threaded sleeve is embedded in the prefabricated column, an anchor hole is opened on the base plate, and the bolts between the base plate and the prefabricated column pass through the anchor hole and are threadedly connected to the threaded sleeve.
[0013] Furthermore, the vertical plate group includes a square frame plate, and a first limiting vertical plate and a second limiting vertical plate are arranged on each side of the square frame plate. The distance between the first limiting vertical plate and the second limiting vertical plate on the same side gradually decreases in the direction away from the square frame plate, and the space between the first limiting vertical plate and the second limiting vertical plate on the same side forms an anchoring groove.
[0014] Furthermore, the vertical plate group also includes an outer frame plate, and the outer frame plate is used to connect the first limiting vertical plate on one side of the square frame plate and the second limiting vertical plate on the adjacent side.
[0015] Furthermore, the outer contour enclosed by the connecting joint is consistent with the outer contour of the prefabricated column.
[0016] Furthermore, each of the anchoring heads is anchored to the plate surface of the square frame plate by means of bolts.
[0017] Furthermore, a reinforcement member is embedded in the prefabricated beam, the reinforcement member and the anchor head are integrally formed, and the reinforcement member is fixed to the steel cage in the prefabricated beam.
[0018] In summary, the present application includes at least one of the following beneficial effects:
[0019] 1. The present application sets a connection joint above the prefabricated column, and embeds an anchor head in each prefabricated beam. When installing the prefabricated beam, the connection and installation between the prefabricated beam and the prefabricated column can be completed by simply inserting the anchor head at the end of the prefabricated beam into the anchor groove. When the prefabricated beam needs to be dismantled, the prefabricated beam can be hoisted upward until the anchor head is out of the anchor groove, thereby realizing repeated disassembly and multiple uses of the prefabricated beam and the prefabricated column;
[0020] 2. Anchoring the connection joints and prefabricated columns, as well as the connection joints and prefabricated beams, with bolts can improve the connection strength between the prefabricated columns and the connection joints, and between the prefabricated beams and the connection joints;
[0021] 3. By providing a reinforcement member integrally formed with the anchor head and pre-embedded in the prefabricated beam, the strength of the connection between the prefabricated beam and the prefabricated column to resist the bending moment can be strengthened. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a three-dimensional installation effect diagram of a connection node between a prefabricated beam and a prefabricated column in an embodiment of the present application;
[0023] Figure 2It is a top view of a connection node between a prefabricated beam and a prefabricated column in Example 1 of the present application;
[0024] Figure 3 It is a top view of a connection node between a prefabricated beam and a prefabricated column in Example 2 of the present application;
[0025] Figure 4 It is a front view cross-sectional view of a connection node between a precast beam and a precast column in Example 2 of the present application.
[0026] Explanation of the accompanying drawings: 1. Prefabricated column; 11. Anchor head; 12. Reinforcement; 2. Prefabricated beam; 3. Connection joint; 31. Anchor groove; 32. Base plate; 321. Anchor hole; 33. Vertical plate group; 331. Square frame plate; 332. First limit vertical plate; 333. Second limit vertical plate; 334. Outer frame plate; 4. Threaded sleeve. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-4 This application is described in further detail.
[0028] Example 1
[0029] The embodiment of the present application discloses a connection node between a prefabricated beam and a prefabricated column, referring to Figure 1 and Figure 2 A connection node between a prefabricated beam and a prefabricated column includes a prefabricated column 1 and a prefabricated beam 2 overlapped and installed above the prefabricated column 1. In the embodiment of the present application, four prefabricated beams 2 are arranged, which are overlapped on the four sides of the prefabricated column 1 respectively.
[0030] When the prefabricated column 1 is formed in the factory, a connection joint 3 is provided at the top of the prefabricated column 1; when the prefabricated beam 2 is formed in the factory, an anchor head 11 and a reinforcement member 12 are pre-embedded at the overlapped end of the prefabricated beam 2. The anchor head 11 and the reinforcement member 12 are integrally formed, the reinforcement member 12 is embedded in the prefabricated beam 2, and the anchor head 11 extends out of the end of the prefabricated beam 2. In order to improve the installation stability of the anchor head 11 and the reinforcement member 12, the reinforcement member 12 is fixed to the steel cage in the prefabricated beam 2 by welding, tying or sleeve connection.
[0031] The connection joint 3 includes a bottom plate 32 and a vertical plate group 33 . The bottom plate 32 is arranged in contact with the top surface of the prefabricated column 1 , and the vertical plate group 33 is arranged perpendicular to the plate surface of the bottom plate 32 .
[0032] Furthermore, the vertical plate group 33 includes a square frame plate 331, and each side of the square frame plate 331 is provided with a first limiting vertical plate 332 and a second limiting vertical plate 333. The distance between the first limiting vertical plate 332 and the second limiting vertical plate 333 on the same side gradually decreases in the direction away from the square frame plate 331, and then an anchoring groove 31 is formed in the space between the first limiting vertical plate 332 and the second limiting vertical plate 333. When installing the prefabricated beam 2, the anchor head 11 is inserted into the anchoring groove 31, so that the connection between the prefabricated beam 2 and the prefabricated column 1 can be achieved.
[0033] The vertical plate group 33 also includes an outer frame plate 334, which is used to connect the first limiting vertical plate 332 on one side of the square frame plate 331 and the second limiting vertical plate 333 on the adjacent side, so that the connection joint 3 is surrounded by an integral frame form. In a preferred embodiment, the outer contour surrounded by the connection joint 3 is consistent with the outer contour of the prefabricated column 1, so that the surrounding side of the connection joint 3 does not protrude from the outer surface of the prefabricated column 1, nor is it recessed in the outer surface of the prefabricated column 1, and the building after assembly is more beautiful. It is particularly important to note that the connection joint 3 is an integrally formed structure, which is formed in the factory using a hot forging process, and there is no subsequent welding or fixing between the various components.
[0034] When installing the prefabricated beam 2 above the prefabricated column 1, firstly, the prefabricated beam 2 is hoisted above the connection joint 3 by the equipment, and the anchor head 11 is aligned with an anchor groove 31, and then the prefabricated beam 2 is lowered. The anchor head 11 can be inserted into the anchor groove 31 from above, and then a mortise and tenon connection is formed between the prefabricated beam 2 and the connection joint 3, so that the displacement of the prefabricated beam 2 in the horizontal direction is limited. At this point, the installation of one prefabricated beam 2 of the present application is completed. After the installation of the other three prefabricated beams 2 is carried out in the same way, the connection node between the beam of the present application and the prefabricated column 1 can be formed.
[0035] In a preferred embodiment, the shape of the anchor head 11 matches the shape of the anchor groove 31, so that after the anchor head 11 is installed in the anchor groove 31, the circumferential side walls of the anchor head 11 and the side walls of the anchor groove 31 are in contact with each other, thereby making the displacement space of the precast beam 2 in the horizontal direction smaller and more stable.
[0036] The connection method provided in this application adopts on-site assembly construction, which is simple to construct, economical and practical, and is conducive to improving labor productivity, shortening construction period, cost control and environmental protection.
[0037] The implementation principle of a connection node between a prefabricated beam and a prefabricated column in an embodiment of the present application is as follows: the core concept of the connection node design of the present application is to combine the traditional mortise and tenon structure assembly concept into concrete buildings, so that when forming a concrete building, a stable connection node can be formed at the connection between each component without grouting; at the same time, each concrete component can be prefabricated and processed in a factory and transported to the site for assembly and construction, and the components can be dismantled, replaced, and reused, forming a concrete temporary building construction system, which has the convenience of quick installation and disassembly of a steel structure temporary building, and also has the living comfort of a concrete building.
[0038] In addition, when the connection nodes of this application are constructed, there is no wet operation on site, which is clean and environmentally friendly, reducing pollution to the environment.
[0039] Example 2
[0040] The difference between Example 2 and Example 1 is that, referring to Figure 3 and Figure 4 A threaded sleeve 4 is embedded in the prefabricated column 1, and an anchoring hole 321 is opened on the base plate 32, so that the base plate 32 and the prefabricated column 1 are also anchored by bolts. The bolts pass through the anchoring hole 321 and are threadedly connected with the threaded sleeve 4 embedded in the prefabricated column 1.
[0041] Furthermore, a through hole is opened in the middle of the anchor head 11, and anchor holes are opened on the side walls where the anchor head 11 and the square frame plate 331 are attached. Anchor holes are opened on each side wall of the square frame plate 331. The anchor holes on the anchor head 11 and the square frame plate 331 are not shown in the figure. After the precast beam 2 is hoisted to the anchor head 11 and inserted into the anchoring groove 31, the anchor hole 321 on the anchor head 11 and the anchor hole 321 on the square frame plate 331 are aligned, and high-strength bolts are passed through the two aligned anchor holes 321 and tightened with nuts, thereby achieving further fixation between the anchor head 11 and the square frame plate 331, and improving the connection stability between the precast beam 2 and the connecting joint 3.
[0042] Embodiment 2 of the present application can further enhance the connection stability and connection strength between the prefabricated column 1 and the connection joint 3, and between the prefabricated beam 2 and the connection joint 3 by installing bolts between the prefabricated column 1 and the connection joint 3, and by installing bolts between the anchor head 11 and the connection joint 3. In the later disassembly process, the disassembly can be completed by only loosening the nuts, which is convenient and quick.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A connection node between a prefabricated beam and a prefabricated column, characterized in that: It comprises a prefabricated column (1) and a prefabricated beam (2) overlapped on the prefabricated column (1), wherein the top end of the prefabricated column (1) is provided with a connecting joint (3); A plurality of anchor grooves (31) are arranged on the peripheral side of the connection joint (3); an anchor head (11) is fixed to the end of the prefabricated beam (2); the anchor head (11) is used to be inserted into the anchor groove (31) from the top end of the connection joint (3), and the anchor head (11) is horizontally limited in the anchor groove (31).
2. The connection node between a prefabricated beam and a prefabricated column according to claim 1, characterized in that: The shapes of the anchor head (11) and the anchor groove (31) match each other; when the anchor head (11) is inserted into the anchor groove (31), the side walls of the anchor head (11) are in contact with the side walls of the anchor groove (31).
3. The connection node between a prefabricated beam and a prefabricated column according to claim 1, characterized in that: The connection joint (3) comprises a bottom plate (32) and a vertical plate group (33) perpendicular to the bottom plate (32).
4. The connection node between a prefabricated beam and a prefabricated column according to claim 3, characterized in that: The base plate (32) and the prefabricated column (1) are anchored by bolts.
5. The connection node between a prefabricated beam and a prefabricated column according to claim 3, characterized in that: A threaded sleeve (4) is pre-buried in the prefabricated column (1), an anchor hole (321) is opened on the base plate (32), and a bolt between the base plate (32) and the prefabricated column (1) passes through the anchor hole (321) and is threadedly connected to the threaded sleeve (4).
6. The connection node between a prefabricated beam and a prefabricated column according to claim 3, characterized in that: The vertical plate group (33) comprises a square frame plate (331), and each side of the square frame plate (331) is provided with a first limiting vertical plate (332) and a second limiting vertical plate (333), and the spacing between the first limiting vertical plate (332) and the second limiting vertical plate (333) on the same side gradually decreases in the direction away from the square frame plate (331), and the space between the first limiting vertical plate (332) and the second limiting vertical plate (333) on the same side forms an anchoring groove (31).
7. The connection node between a prefabricated beam and a prefabricated column according to claim 5, characterized in that: The vertical plate group (33) further comprises an outer frame plate (334), wherein the outer frame plate (334) is used to connect a first position-limiting vertical plate (332) on one side of the square frame plate (331) and a second position-limiting vertical plate (333) on an adjacent side.
8. A connection node between a prefabricated beam and a prefabricated column according to any one of claims 1 to 7, characterized in that: The outer contour enclosed by the connection joint (3) is consistent with the outer contour of the prefabricated column (1).
9. A connection node between a prefabricated beam and a prefabricated column according to any one of claims 6 or 7, characterized in that: Each of the anchoring heads (11) is anchored to the plate surface of the square frame plate (331) via bolts.
10. A connection node between a prefabricated beam and a prefabricated column according to any one of claims 1 to 7, characterized in that: A reinforcing member (12) is also pre-buried in the prefabricated beam (2); the reinforcing member (12) and the anchor head (11) are integrally formed; and the reinforcing member (12) is fixed to the steel cage in the prefabricated beam (2).