Connecting structure of precast beam and column
By adopting a staggered distribution of vertical and transverse steel bars in the connecting structure between prefabricated beams and columns, the problem of insufficient stability caused by uneven steel bars is solved, and the stability of the beams and the safety of the building are improved.
Patent Information
- Application Number
- CN202422223767.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the existing connecting structure between prefabricated beams and columns, the steel bars are unevenly distributed, resulting in insufficient stability of lateral support and are prone to inclination or breaking during long-term use, affecting building safety.
The connecting structure is adopted with vertical and transverse steel bars interlaced, and through the joint interface mounting and the steel bar combination fixing, the steel bars are ensured to be stable and fixed in three different directions, increasing the stability of the beam.
Improves the stability of the beams, prevents tilt or breakage, and enhances the safety performance of the building.
Smart Images
Figure CN223074934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a connection structure between a precast beam and a column. Background Technique
[0002] With the widespread application of prefabricated buildings, the development of the construction industry occupies an important position in the national economic development. The development and application of prefabricated buildings have promoted the innovative development of the construction industry, facilitated the application of new technologies and new materials, and at the same time influenced the future development trend of the construction industry. Compared with traditional buildings, prefabricated buildings have significant advantages. They can not only meet the living needs but also meet the requirements of energy conservation and environmental protection, and have good environmental, economic, and social benefits.
[0003] In the connection structure between a precast beam and a column of the prior art, in the pouring groove, the steel bars are not cross-distributed in three directions, resulting in insufficient stability of the lateral support. After long-term use, the cross beam and the connecting part of the main body are prone to downward inclination or fracture, affecting the safety of the building. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a connection structure between a precast beam and a column, so as to solve the problem that in the connection structure between a precast beam and a column of the prior art, in the pouring groove, the steel bars are not cross-distributed in three directions, resulting in insufficient stability of the lateral support. After long-term use, the cross beam and the connecting part of the main body are prone to downward inclination or fracture, affecting the safety of the building, which is mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A connection structure between a precast beam and a column, including a column body and a cross beam. The column body includes a connection column head, the connection column head is square, and a downward groove is provided at the top. Each side wall of the connection column head is provided with a channel extending outward, and the channel is communicated with the groove of the connection column head. An interface installation part is installed at the outer channel opening, and the connection column head is connected to the cross beam through the interface installation part provided with a cross beam connecting part. An internal steel bar assembly is arranged inside the groove of the connection column head. The internal steel bar assembly includes vertical steel bars and horizontal steel bars. The vertical steel bars are fixed at the bottom of the groove of the connection column head, and both ends of the horizontal steel bars are fixed on two corresponding groups of interface installation parts.
[0006] Preferably, the internal steel bar assembly further includes a steel bar combination fixing part. Both the vertical steel bars and the horizontal steel bars are formed by arranging multiple steel bars at equal distances. The vertical steel bars and the horizontal steel bars are respectively fixed into a whole by the steel bar combination fixing part.
[0007] Preferably, the interface mounting member is inserted and connected to the channel of the connection column head. The interface mounting member includes a convex block, which is located at one end of the interface mounting member facing the inside of the groove of the connection column head, and the outer diameter of the convex block is smaller than the inner diameter of the channel of the connection column head.
[0008] Preferably, the interface mounting member further includes an inner connecting block, the outer diameter of which matches the inner diameter of the channel of the connection column head, and a rubber ring is arranged on the outer side of the inner connecting block for sealing.
[0009] Preferably, reinforcing bar limiting holes are arranged on the vertical surface of the convex block, and reinforcing bar limiting holes are arranged at the bottom of the groove of the connection column head. Both ends of the horizontal reinforcing bar are inserted into the positions of the reinforcing bar limiting holes of the corresponding two groups of convex blocks, and the bottom of the vertical reinforcing bar is inserted into the position of the reinforcing bar limiting hole at the bottom of the groove of the connection column head.
[0010] Preferably, the reinforcing bar limiting holes are not located at the center of the height of the vertical surface of the convex block. The installation directions of the interface mounting members on the side surfaces of adjacent connection column heads are opposite up and down, and the reinforcing bar limiting holes on the convex blocks of adjacent two groups of interface mounting members are not at the same height.
[0011] Preferably, a steel corbel is arranged at the bottom of the channel of the connection column head. One end of the steel corbel is fixed to the side surface of the connection column head, and the other end is fixed to the bottom of the channel of the connection column head. The interface mounting member further includes an outer plate, the outer diameter of which is unified with the outer diameter of the channel of the connection column head, and the bottom of the outer plate abuts against the top of the steel corbel.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] Through the arrangement of the vertical reinforcing bar and the horizontal reinforcing bar, the four groups of interface mounting members on the periphery of the connection column head can fix the horizontal reinforcing bars in two directions. Together with the vertical reinforcing bar, a total of three reinforcing bar combinations in different directions are provided. During installation, first insert the combined vertical reinforcing bar into the reinforcing bar limiting hole at the bottom of the groove of the connection column head, and then install the interface mounting member with the fixed horizontal reinforcing bar at the channel opening on the side surface of the connection column head. The other end of the horizontal reinforcing bar passes through the inside of the groove of the connection column head and is inserted into the position of the reinforcing bar limiting hole of the interface mounting member installed on the corresponding side. The installation method of the interface mounting member and the horizontal reinforcing bar in the other direction is the same. The reinforcing bars are interlaced with each other. Compared with the conventional structure with only vertical reinforcing bars, the horizontal support is more firm, which can improve the stability of the cross beam after pouring, make it not easy to tilt downward or break, and improve the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic side view structure diagram of the overall connection of the beam and column nodes of the present utility model.
[0015] Figure 2Schematic diagram of the connection column head structure of the present utility model.
[0016] Figure 3 Schematic diagram of the fixed position structure of the built-in steel bar assembly of the present utility model.
[0017] Figure 4 Schematic diagram of the built-in steel bar assembly of the present utility model.
[0018] Figure 5 Schematic diagram of the vertical steel bar grouping structure of the present utility model.
[0019] Figure 6 Schematic diagram of the horizontal steel bar grouping structure of the present utility model.
[0020] Figure 7 Schematic diagram of the convex block direction of the interface installation part of the present utility model.
[0021] Figure 8 Schematic diagram of the outer plate direction of the interface installation part of the present utility model.
[0022] Figure 9 Schematic diagram of the interface installation part with a crossbeam connecting piece of the present utility model.
[0023] Figure 10 Schematic diagram of the installation position of the steel corbel of the present utility model.
[0024] In the figure: 1. Column body; 11. Column body; 12. Connection column head; 2. Steel corbel; 3. Interface installation part; 31. Outer plate; 32. Inner connection block; 321. Rubber ring; 33. Convex block; 4. Crossbeam connecting piece; 5. Crossbeam; 6. Steel bar limiting hole; 7. Built-in steel bar assembly; 71. Vertical steel bar; 72. Horizontal steel bar; 73. Steel bar combination fixing piece. Detailed implementation manners
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] An embodiment provided by the present utility model: As Figure 1 shown, a connection structure between a precast beam and a column, as Figure 1 shown, includes a column body 1, a steel corbel 2, an interface installation part 3, a crossbeam connecting piece 4, a crossbeam 5, a steel bar limiting hole 6, and a built-in steel bar assembly 7.
[0027] AsFigure 1 and Figure 2 As shown in Figure 2 , the column 1 includes a connecting column head 12. The connecting column head 12 is square, and there is a downward groove at the top. Each side wall of the connecting column head 12 is provided with a channel extending outward. The channel communicates with the groove of the connecting column head 12. The connecting interface fitting 3 is installed at the outer channel opening. The connecting interface fitting 3 can be connected to the cross beam 5 through the cross beam connecting piece 4. An internal steel bar assembly 7 is arranged inside the groove of the connecting column head 12. For the completed joint, concrete is poured into the groove of the connecting column head 12, evenly filling the space between the inside of the connecting column head 12 and the connecting interface fitting 3, wrapping the internal steel bar assembly 7. After the concrete dries, the connection between the beam and the column is completed.
[0028] As Figure 3 and Figure 4 shown in Figure 4 , the internal steel bar assembly 7 includes vertical steel bars 71, horizontal steel bars 72 and steel bar combination fixing pieces 73. The vertical steel bars 71 are fixed at the bottom of the groove of the connecting column head 12. The two ends of the horizontal steel bars 72 are fixed on two corresponding groups of connecting interface fittings 3. The four groups of connecting interface fittings 3 on the peripheral side of the connecting column head 12 can fix the horizontal steel bars 72 in two directions. Together with the vertical steel bars 71, there are three different directions of steel bar combinations. The steel bars are staggered with each other. Compared with the previous structure with only vertical steel bars, the lateral support is more firm, which can improve the stability of the cross beam 5 after pouring, making it not easy to tilt downward or break, and improving the safety performance.
[0029] As Figure 5 and Figure 6 shown in Figure 6 , both the vertical steel bars 71 and the horizontal steel bars 72 are formed by arranging multiple steel bars at equal distances. The vertical steel bars 71 and the horizontal steel bars 72 are respectively fixed into a whole by the steel bar combination fixing pieces 73. Before installation, first use the steel bar combination fixing pieces 73 to combine the required number of vertical steel bars 71 and horizontal steel bars 72 into a whole. On the one hand, the setting of the steel bar combination fixing pieces 73 facilitates the direct fixing operation of the whole. On the other hand, since the positions where the steel bar combination fixing pieces 73 fix the steel bars correspond to the steel bar limit holes 6, therefore, the vertical steel bars 71 and the horizontal steel bars 72 can be accurately positioned at the positions to be installed, improving the installation efficiency.
[0030] As Figure 3 and Figure 7As shown, the mouthpiece mounting member 3 includes a convex block 33. The convex block 33 is located at one end of the mouthpiece mounting member 3 facing the inside of the groove of the connecting column head 12. A steel bar limiting hole 6 is provided on the vertical surface of the convex block 33, and a steel bar limiting hole 6 is provided at the bottom of the groove of the connecting column head 12. Multiple groups of steel bar limiting holes 6 are provided on both the bottom of the groove of the connecting column head 12 and the vertical surface of the convex block 33. The steel bar limiting holes 6 on the vertical surface of the convex block 33 correspond to the horizontal steel bars 72 one by one, and the steel bar limiting holes 6 at the bottom of the groove of the connecting column head 12 correspond to the vertical steel bars 71 one by one. The mouthpiece mounting member 3 is inserted and connected to the channel of the connecting column head 12. Both ends of the horizontal steel bar 72 are inserted into the positions of the steel bar limiting holes 6 of the corresponding two groups of convex blocks 33, and the bottom of the vertical steel bar 71 is inserted into the position of the steel bar limiting hole 6 at the bottom of the groove of the connecting column head 12. When installing this device, first insert the combined vertical steel bars 71 into the steel bar limiting holes 6 at the bottom of the groove of the connecting column head 12. Then install the mouthpiece mounting member 3 with the horizontal steel bars 72 fixed at the channel opening on the side of the connecting column head 12. The other end of the horizontal steel bar 72 passes through the inside of the groove of the connecting column head 12 and is inserted into the position of the steel bar limiting hole 6 of the mouthpiece mounting member 3 installed on the corresponding side. The installation methods of the mouthpiece mounting member 3 and the horizontal steel bar 72 in the other direction are the same.
[0031] The steel bar limiting hole 6 is not located at the height center of the vertical surface of the convex block 33. The installation directions of the mouthpiece mounting members 3 on the adjacent sides of the connecting column head 12 are opposite up and down, and the steel bar limiting holes 6 on the convex blocks 33 of the adjacent two groups of mouthpiece mounting members 3 are not at the same height. Due to the setting of the distribution height of the steel bar limiting holes 6 on the convex block 33, the actual steel bar limiting holes 6 of the mouthpiece mounting member 3 that fixes the two cross-directional horizontal steel bars 72 are not interfered, so that the heights of the two cross-directional horizontal steel bars 72 can be staggered. The horizontal steel bars 72 in different directions cross into a mesh shape, which is also convenient for installation.
[0032] The outer diameter of the convex block 33 is smaller than the inner diameter of the channel of the connecting column head 12. There is a gap between the outside of the convex block 33 and the channel of the connecting column head 12, and the gap communicates with the groove of the connecting column head 12. During pouring, the concrete fills the gap between the outside of the convex block 33 and the channel of the connecting column head 12, increasing the area where the concrete connects the mouthpiece mounting member 3. At the same time, the convex block 33 is filled with concrete up, down, left, and right, effectively preventing the mouthpiece mounting member 3 from loosening, strengthening the horizontal firmness of the mouthpiece mounting member 3, and making this structure safer in building use.
[0033] As Figure 8As shown, the connection port mounting member 3 further includes an inner connection block 32. The outer diameter of the inner connection block 32 matches the inner diameter of the channel of the connection column head 12. A rubber ring 321 is provided on the outer side of the inner connection block 32. The inner connection block 32 is stuck at the channel position of the connection column head 12. After the connection port mounting member 3 is installed and before the concrete is poured, the connection port mounting member 3 can be stably fixed at the channel opening, so as to remain horizontal after pouring, thereby making the connected cross beam 5 perpendicular to the column body 1. The rubber ring 321 on the outer side of the inner connection block 32 seals the connection between the connection port mounting member 3 and the connection column head 12, preventing overflow during concrete pouring.
[0034] As Figure 9 shown, the connection port mounting members 3 installed on the four sides of the connection column head 12 are divided into two types. One is the connection port mounting member 3 with a cross beam connecting member 4, and the other is the connection port mounting member 3 without a cross beam connecting member 4. Different connection port mounting members 3 are selected according to the direction of connecting the cross beam 5 at this node position. Install the connection port mounting member 3 with a cross beam connecting member 4 in the direction where the cross beam 5 needs to be connected, and install the connection port mounting member 3 without a cross beam connecting member 4 in the direction where the cross beam 5 does not need to be connected. The connection port mounting member 3 includes an outer plate 31. The cross beam connecting member 4 is welded to the outer plate 31. The connection column head 12 connects the cross beam 5 through the connection port mounting member 3 provided with the cross beam connecting member 4. The cross beam 5 is inserted into the cross beam connecting member 4 and fixedly connected by screws.
[0035] As Figure 10 shown, a steel corbel 2 is provided at the bottom of the channel of the connection column head 12. One end of the steel corbel 2 is fixed to the side of the connection column head 12, and the other end is fixed to the bottom of the channel of the connection column head 12. The outer diameter of the outer plate 31 is unified with the outer diameter of the channel of the connection column head 12. The bottom of the outer plate 31 abuts against the top of the steel corbel 2. After pouring, the steel corbel 2 is installed at the bottom of each connection port mounting member 3. The steel corbel 2 can support the connection port mounting member 3 and keep the connection port mounting member 3 and the cross beam 5 horizontal.
[0036] The above are only embodiments of the present invention. Common knowledge such as specific structures and characteristics known in the solution is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A connecting structure between a precast beam and a column, comprising a column body (1) and a cross beam (5), characterized in that: The column body (1) includes a connecting column head (12). The connecting column head (12) is square, and a downward groove is provided at the top. Each side wall of the connecting column head (12) is provided with a channel extending outward, and the channel communicates with the groove of the connecting column head (12). The interface installation part (3) is installed at the outer channel opening. The connecting column head (12) is connected to the cross beam (5) through the interface installation part (3) provided with a cross beam connecting part (4). An internal steel bar assembly (7) is arranged inside the groove of the connecting column head (12). The internal steel bar assembly (7) includes vertical steel bars (71) and horizontal steel bars (72). The vertical steel bars (71) are fixed at the bottom of the groove of the connecting column head (12), and both ends of the horizontal steel bars (72) are fixed on two corresponding groups of interface installation parts (3).
2. The connecting structure between a precast beam and a column according to claim 1, characterized in that: The internal steel bar assembly (7) further includes a steel bar combination fixing part (73). Both the vertical steel bars (71) and the horizontal steel bars (72) are formed by arranging multiple steel bars at equal distances. The vertical steel bars (71) and the horizontal steel bars (72) are respectively fixed into a whole by the steel bar combination fixing part (73).
3. The connecting structure between a precast beam and a column according to claim 1, characterized in that: The interface installation part (3) is inserted and connected in the channel of the connecting column head (12). The interface installation part (3) includes a convex block (33). The convex block (33) is located at one end of the interface installation part (3) facing the inside of the groove of the connecting column head (12). The outer diameter of the convex block (33) is smaller than the inner diameter of the channel of the connecting column head (12).
4. The connection structure between a precast beam and a column according to claim 3, characterized in that: The interface installation part (3) further includes an inner connecting block (32). The outer diameter of the inner connecting block (32) matches the inner diameter of the channel of the connecting column head (12). A rubber ring (321) is arranged on the outer side of the inner connecting block (32).
5. The connection structure between a precast beam and a column according to claim 3, characterized in that: Reinforcing bar limiting holes (6) are arranged on the vertical surface of the convex block (33). Reinforcing bar limiting holes (6) are arranged at the bottom of the groove of the connecting column head (12). Both ends of the horizontal steel bar (72) are inserted at the positions of the reinforcing bar limiting holes (6) of two corresponding groups of convex blocks (33), and the bottom of the vertical steel bar (71) is inserted at the position of the reinforcing bar limiting hole (6) at the bottom of the groove of the connecting column head (12).
6. The connecting structure between a precast beam and a column according to claim 5, characterized in that: The reinforcing bar limiting holes (6) are not located at the center of the height of the vertical surface of the convex block (33). The installation directions of the interface installation parts (3) on the side surfaces of adjacent connecting column heads (12) are opposite up and down, and the reinforcing bar limiting holes (6) on the convex blocks (33) of two adjacent groups of interface installation parts (3) are not at the same height.
7. A connecting structure between a precast beam and a column according to claim 1, characterized in that: A steel corbel (2) is arranged at the bottom of the channel of the connecting column head (12). One end of the steel corbel (2) is fixed on the side surface of the connecting column head (12), and the other end is fixed at the bottom of the channel of the connecting column head (12). The interface installation part (3) further includes an outer plate (31). The outer diameter of the outer plate (31) is unified with the outer diameter of the channel of the connecting column head (12). The bottom of the outer plate (31) abuts against the top of the steel corbel (2).