Assembly type prefabricated beam column connecting structure
Through the design of the grouting chamber shell and connecting ribs, the problem of difficult alignment of prefabricated beams and columns is solved, and a construction method with fast and accurate alignment and no support is achieved, which significantly shortens the construction period.
Patent Information
- Application Number
- CN202422446258.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-10
AI Technical Summary
It is difficult to accurately align traditional prefabricated beams and columns when connected, and it is difficult to operate and requires an additional support system to be built, resulting in a long construction period.
The grouting chamber shell, connecting ribs and calibration frame structure is adopted to accurately align the prefabricated beams with prefabricated columns through the limiting plate and the chute guide holes, and the additional support system for the prefabricated beams is cancelled.
It realizes rapid and accurate alignment of prefabricated beams and prefabricated columns, simplifies operating procedures, saves labor, and significantly shortens construction period.
Smart Images
Figure CN223151339U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction, and particularly relates to a connecting structure for assembled precast beams and columns. Background Art
[0002] An assembled building is a fast and efficient building method, and its core lies in the standardized and modular design of components. In an assembled building, the connection of precast beams and columns is a key assembled component, which plays an important role in the stability, safety and durability of the building structure.
[0003] At present, the connecting ends of traditional precast beams and columns will extend steel bars during prefabrication. During connection, first set up the positions of the precast beam and the precast column, then tie the steel bars of the precast beam and the precast column together with steel wires or iron wires, and finally pour in the joint area. This method is an effective connection method. However, when setting up the precast beam and the precast column, the precast beam is usually hoisted, which is not easy to control the precise alignment of the precast beam and the precast column, with a large operation difficulty. Moreover, an additional support system for the precast beam needs to be built, resulting in a large labor intensity and a long construction period.
[0004] Therefore, it is necessary to provide an improved technical solution for the deficiencies of the above-mentioned existing technologies. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the problems that the connection of traditional precast beams and columns is not easy to control the precise alignment of the precast beam and the precast column, with a large operation difficulty, and an additional support system for the precast beam needs to be built, resulting in a large labor intensity and a long construction period, and to provide a connecting structure for assembled precast beams and columns.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] An assembled precast beam-column connection structure, comprising: a grouting cavity shell, connecting bars, and an alignment frame. The grouting cavity shell is placed at the connection end of the precast column. The top of the grouting cavity shell is closed and the bottom is open. A hole for the steel bars at the connection end of the precast column to pass through is reserved around the top of the grouting cavity shell, and a grouting hole is provided in the center. A pair of limiting plates are vertically arranged in the middle of the inner side wall of the grouting cavity shell. The two limiting plates are arranged at intervals face to face. A sliding groove is provided on the side wall of the grouting cavity shell corresponding to the interval between the two limiting plates. The connecting bar includes: a main board and a sub-board. The outer end of the main board is integrally cast with the connection end of the precast beam. The sub-board is centrally arranged at the inner end of the main board. The back of the sub-board is flush with the end of the limiting plate away from the grouting cavity shell. The connection end of the precast beam is flush with the outer side wall of the grouting cavity shell, so that the inner end of the main board is inserted into the sliding groove and between the adjacent two limiting plates from bottom to top. The alignment frame includes: angle plates and C-shaped plates. At least four angle plates and C-shaped plates are provided and are all arranged at intervals along the circumferential direction. The angle plates are butted at the bottom edge of the grouting cavity shell. A pair of extension plates are provided at the opening of the C-shaped plate. The ends of the two extension plates away from the C-shaped plate are respectively vertically butted against the inner sides of the adjacent two angle plates close to each other, so that a guiding hole for the inner end of the main board to pass through up and down is formed between the C-shaped opening of the C-shaped plate, the adjacent two extension plates, and the angle plates.
[0008] In the assembled precast beam-column connection structure as described above, preferably, the top end of the limiting plate is not higher than the inner top wall of the grouting cavity shell, and the bottom end of the limiting plate is flush with the bottom end of the grouting cavity shell.
[0009] Preferably, a reinforcing plate parallel to the sub-board is provided in the middle of the main board;
[0010] The size of the reinforcing plate fits the connection end of the precast beam, so that the reinforcing plate is butted against the connection end of the precast beam.
[0011] Preferably, the connecting bar as a whole is in a cross shape.
[0012] Preferably, an end plate is further included. A hole for the steel bars at the connection end of the precast column to pass through is reserved around the end plate, so that the end plate is butted against the connection end of the precast column.
[0013] Preferably, a sunken groove is provided on the upper surface of the end plate to place the alignment frame;
[0014] The top of the alignment frame is flush with the upper plate surface of the end plate.
[0015] Preferably, the outer dimension of the alignment frame fits the outer dimension of the end plate.
[0016] Preferably, the height of the sub-board and the main board is equal to the height of the alignment frame plus the height of the limiting plate.
[0017] Beneficial effects: The utility model abandons the traditional connection method of precast beams and columns. During the erection of precast beams and precast columns, the precast beams and precast columns can be quickly and accurately aligned. The operation process is simple, and there is no need to additionally erect a support system to support the precast beams, saving labor and significantly shortening the construction period. Description of the drawings
[0018] The specification drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. Among them:
[0019] Figure 1 It is a schematic diagram of the actual application of the utility model;
[0020] Figure 2 It is a schematic diagram of the cooperation between the connecting rib structure of the utility model and the precast beam;
[0021] Figure 3 It is an internal schematic diagram of the grouting cavity shell structure of the utility model;
[0022] Figure 4 It is an overall schematic diagram of the alignment frame structure of the utility model;
[0023] Figure 5 It is a schematic diagram of the cooperation between the end plate structure of the utility model and the precast column structure;
[0024] Figure 6 It is a schematic diagram of the cooperation between the end plate and the alignment frame structure of the utility model;
[0025] Figure 7 It is a schematic diagram of the cooperation between the connecting rib and the limiting plate structure of the utility model.
[0026] In the figure: 1. Grouting cavity shell; 2. Grouting hole; 3. Limiting plate; 4. Sliding groove; 5. Main board; 6. Sub-board; 7. Angle board; 8. C-shaped board; 9. Extension board; 10. Guide hole; 11. Reinforcing board; 12. End plate; 13. Sunk groove. Detailed implementation manners
[0027] Next, the technical solutions in the embodiments of the utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the utility model.
[0028] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected" and "connected to" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0029] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.
[0030] Embodiment. This embodiment aims to provide an assembled precast beam-column connection structure, and its main function is reflected in that it can quickly and accurately align the precast beam and the precast column to reduce the operation difficulty, and there is no need to additionally build a support system for the precast beam.
[0031] Refer to Figure 1 、 Figure 3 and Figure 5 , including: a grouting cavity shell 1, connecting bars, an alignment frame, and an end plate 12. The grouting cavity shell 1 is placed at the connection end of the precast column, that is, the top end. The top end of the grouting cavity shell 1 is closed and the bottom end is open. Holes for the steel bars at the connection end of the precast column to pass through are reserved at the four corners around the top end of the grouting cavity shell 1. At the same time, a grouting hole 2 is provided in the middle. The grouting cavity shell 1 is not higher than the steel bars at the connection end of the precast column, so as to continue to connect the precast column above the grouting cavity shell 1; on the middle parts of the four inner side walls of the grouting cavity shell 1, pairs of limiting plates 3 are vertically welded. Adjacent two limiting plates 3 are arranged at intervals face to face, and a sliding groove 4 is opened on the side wall of the grouting cavity shell 1 corresponding to the interval between the two limiting plates 3. The top end of the limiting plate 3 is not higher than the inner top wall of the grouting cavity shell 1 to ensure that the limiting plate 3 can be completely buried after the grouting cavity shell 1 is filled with slurry. The bottom end of the limiting plate 3 is flush with the bottom end of the grouting cavity shell 1 to ensure the stability of the connection at the bottom end of the grouting cavity shell 1.
[0032] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 7, the connecting rib includes: a main board 5 and a secondary board 6. The outer end of the main board 5 is integrally cast with the connecting end of the precast beam. The secondary board 6 is centered and welded to the inner end of the main board 5. The back surface of the secondary board 6 is flush with the end of the limiting plate 3 away from the grouting cavity shell 1, and the connecting end of the precast beam is flush with the outer side wall of the grouting cavity shell 1, so that the inner end of the main board 5 is inserted into the chute 4 and between two adjacent limiting plates 3 from bottom to top.
[0033] Refer to Figure 2 、 Figure 3 and Figure 4 , the alignment frame includes: angle plates 7 and C-shaped plates 8. There are four angle plates 7 and C-shaped plates 8 respectively, and they are all distributed at intervals along the circumferential direction. The four angle plates 7 are respectively welded and butted at the four corners of the bottom surface of the grouting cavity shell 1. A pair of symmetric extension plates 9 are fixed at the opening of the C-shaped plate 8 by welding or bolts. When using bolts for fixation, it is necessary to ensure that the bolt heads do not protrude, so as not to interfere with the assembly of other components. The ends of the two extension plates 9 away from the C-shaped plate 8 are respectively vertically welded and butted to the inner sides of the adjacent ends of two adjacent angle plates 7, so that a guiding hole 10 for the inner end of the main board 5 to pass up and down is formed between the C-shaped opening of the C-shaped plate 8, the adjacent two extension plates 9 and the angle plates 7. The guiding hole 10 is T-shaped to adapt to the inner end of the main board 5 welded with the secondary board 6; through the alignment frame, the connecting end of the precast beam and the connecting end of the precast column can be quickly and accurately aligned.
[0034] Refer to Figure 5 and Figure 6 , holes are reserved around the end plate 12 for the steel bars of the connecting end of the precast column to pass through, so that the end plate 12 can be placed at the connecting end of the precast column, and then the end plate 12 can be fixed and butted with the precast column using bolts. A sunken groove 13 is provided on the upper surface of the end plate 12 to place the alignment frame, and the top of the alignment frame is flush with the upper plate surface of the end plate 12. The sunken groove 13 also has a limiting effect on the alignment frame, so as to prevent all the stresses applied to the grouting cavity shell 1 in the early stage of grouting from being absorbed by the steel bars of the connecting end of the precast column. Among them, the outer dimensions of the alignment frame match the outer dimensions of the end plate 12 to adapt to the shape of the precast column.
[0035] In this embodiment, a reinforcing plate 11 parallel to the secondary board 6 is welded in the middle of the main board 5. The size of the reinforcing plate 11 matches the connecting end of the precast beam, so that the reinforcing plate 11 is fixed and butted at the connecting end of the precast beam by bolts. The connecting strength of the connecting end of the precast beam can be effectively enhanced through the reinforcing plate 11, and the overall connecting rib is in a cross shape through the reinforcing plate 11. Due to the internal space limitation of the grouting cavity shell 1 on the secondary board 6, its length must be shorter than that of the reinforcing plate 11.
[0036] In this embodiment, the heights of the secondary board 6 and the main board 5 are equal to the height of the alignment frame plus the limiting plate 3, making the overall connection structure of this connection compact and avoiding the phenomenon of grout leakage.
[0037] During actual use, first weld the alignment frame to the bottom end of the grouting cavity shell 1, vertically assemble the precast column onto the designated base, place the end plate 12 at the connection end (i.e., the top end) of the precast column. Next, pre-place the inner end of the connecting reinforcement at the connection end of the precast beam onto the connection end of the precast column. Next, align the holes on the grouting cavity shell 1 with the reinforcement bars (usually straight bars) at the connection end of the precast column, and gradually lower the grouting cavity shell 1. When the alignment frame at the bottom end of the grouting cavity shell 1 contacts the inner end of the connecting reinforcement, adjust the position of the inner end of the connecting reinforcement by moving the precast beam until the inner end of the connecting reinforcement enters the T-shaped guiding hole 10 of the alignment frame, then it can be confirmed that the connection end of the precast beam and the connection end of the precast column are in a precisely aligned state. Next, gradually lower the grouting cavity shell 1. During this period, the inner end of the connecting reinforcement will gradually insert between two adjacent limiting plates 3 and the corresponding sliding grooves 4 until the alignment frame falls into the sunk groove 13 on the upper surface of the end plate 12. At this time, the connection end of the precast beam is in a supported state, and there is no need to additionally build a support system under the precast beam. Workers can grout into the grouting cavity shell 1 through the grouting hole 2 until the slurry surface is flush with the top of the grouting cavity shell 1.
[0038] The connection structure provided in this embodiment abandons the traditional connection method of precast beams and columns. During the construction of precast beams and columns, it can quickly and precisely align the precast beam and the precast column. The operation process is simple, and there is no need to additionally build a support system to support the precast beam, saving labor and significantly shortening the construction period.
[0039] It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.
[0040] The above are only the preferred embodiments of the present invention, and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.
Claims
1. An assembled precast beam-column connection structure, characterized in that, Including: A grouting cavity shell is placed at the connecting end of the precast column. The top of the grouting cavity shell is closed and the bottom is open. Holes for the steel bars at the connecting end of the precast column to pass through are reserved around the top of the grouting cavity shell, and a grouting hole is provided in the center. A pair of limiting plates are vertically provided in the middle of the inner side wall of the grouting cavity shell. The two limiting plates are arranged at intervals face to face. A sliding groove is provided on the side wall of the grouting cavity shell corresponding to the interval between the two limiting plates; A connecting bar, including: a main board and a secondary board. The outer end of the main board is integrally cast with the connecting end of the precast beam. The secondary board is centrally arranged at the inner end of the main board. The back surface of the secondary board is flush with the end of the limiting plate away from the grouting cavity shell. The connecting end of the precast beam is flush with the outer side wall of the grouting cavity shell, so that the inner end of the main board is inserted into the sliding groove and between the two adjacent limiting plates from bottom to top; An alignment frame, including: angle plates and C-shaped plates. At least four angle plates and C-shaped plates are provided and are all distributed at intervals along the circumferential direction. The angle plates are butted at the bottom edge of the grouting cavity shell. A pair of extension plates are provided at the opening of the C-shaped plate. The ends of the two extension plates away from the C-shaped plate are respectively vertically butted against the inner sides of the adjacent ends of the two adjacent angle plates, so that a guiding hole for the inner end of the main board to pass through up and down is formed between the C-shaped opening of the C-shaped plate, the two adjacent extension plates and the angle plates.
2. The prefabricated beam-column connection structure according to claim 1, characterized in that The top end of the limiting plate is not higher than the inner top wall of the grouting cavity shell, and the bottom end of the limiting plate is flush with the bottom end of the grouting cavity shell.
3. The prefabricated beam-column connection structure according to claim 1, wherein, A reinforcing plate parallel to the secondary board is provided in the middle of the main board; The size of the reinforcing plate fits the connecting end of the precast beam, so that the reinforcing plate is butted against the connecting end of the precast beam.
4. The prefabricated beam-column connection structure according to claim 3, characterized in that, The connecting bar is in a cross shape as a whole.
5. The prefabricated precast beam-column connection structure according to claim 1, characterized in that, It also includes an end plate. Holes for the steel bars at the connecting end of the precast column to pass through are reserved around the end plate, so that the end plate is butted against the connecting end of the precast column.
6. The prefabricated precast beam-column connection structure according to claim 5, characterized in that, A sunken groove is provided on the upper surface of the end plate to place the alignment frame; The top of the alignment frame is flush with the upper plate surface of the end plate.
7. The prefabricated precast beam-column connection structure according to claim 6, characterized in that, The outer dimension of the alignment frame fits the outer dimension of the end plate.
8. The prefabricated precast beam-column connection structure according to claim 1, characterized in that, The height of the secondary board and the main board is equal to the height of the alignment frame plus the limiting plate.