Large bridging piece supporting structure

By combining the main beam, precast slab, support frame and cable tie beam, the problem of slow formwork installation speed of large cantilever structures is solved, and efficient and stable support effect is achieved.

CN223548941UActive Publication Date: 2025-11-14中交建筑集团西南建设有限公司
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Patent Information

Application Number
CN202423164452.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-21
Publication Date
2025-11-14
Estimated Expiration
2034-12-21

AI Technical Summary

Technical Problem

The existing large cantilever structure has a slow formwork installation process, requires a large number of workers with high experience, resulting in low construction efficiency.

Method used

The system adopts a combined structure of main beams, precast slabs, support frames, and diagonal bracing beams. Through the design of interlocking grooves, interlocking pins, threaded connections, and diagonal bracing beams, a stable support structure is formed, simplifying the installation process.

Benefits of technology

It improves the construction efficiency and installation convenience of large cantilever structures and enhances the stability of the supporting structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of buildings, in particular to a large bridging piece supporting structure which comprises a main body beam, prefabricated plates, bridging pieces, a supporting frame structure and a cable-stayed beam structure, the prefabricated plates are embedded in the top face and the bottom face of the main body beam, the bridging pieces are fixedly installed on the top faces of the prefabricated plates, and the supporting frame structure and the cable-stayed beam structure are arranged on the bottom face of the main body beam. The supporting frame structure is fixedly installed on the side wall face of the main body beam and fixedly installed between the prefabricated slabs, and the cable-stayed beam structure is installed between the end of the bridging piece and the bottom of the supporting frame structure. Prefabricated slab structures are embedded in the top face and the bottom face of the main body beam, supporting frames are fixedly installed on the side wall face of the main body beam, and supporting columns are connected between the supporting frames in a threaded mode. And the bottom surface of one end of the top beam is fixedly connected with the fixed seat on the top surface of the prefabricated slab through a cable-stayed beam. The whole supporting structure is high in stability and convenient to install.
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Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a large cantilever slab support structure. Background Technology

[0002] Large-span cantilever structures refer to buildings with very large spans. Examples include railway and highway bridges, stadiums, auditoriums, large auditoriums, railway stations, bus stations, large conference rooms, grand theaters, large cinemas, opera houses, large thin-shell buildings, reticulated shell buildings, urban elevated roads, cableways, and other road and bridge structures.

[0003] Before pouring concrete, large cantilever structures require formwork. Currently, wooden piles are used for support, and wooden boards and nails are used to nail the formwork together to form a pouring space for placing the steel reinforcement frame and pouring concrete. This method of formwork installation is slow, the work is complicated, requires multiple people to work together, and requires workers to have rich experience.

[0004] Therefore, there is an urgent need to design a large cantilever slab support structure. Precast slabs are embedded in the top and bottom surfaces of the main beam, and support frames are fixedly installed on the side walls of the main beam. Support columns are threadedly connected between the support frames. A cantilever slab is cast on top of the precast slab, and one end of the cantilever slab is fixedly connected to a fixed seat on the top surface of the precast slab via a diagonal tie beam. The entire support structure has high stability and is easy to install. Utility Model Content

[0005] To address the shortcomings of the existing technology, the present invention aims to provide a large cantilever slab support structure, comprising: a main beam, a precast slab, a cantilever slab, a support frame structure, and a tie beam structure. The precast slab is embedded in the top and bottom surfaces of the main beam. The cantilever slab is fixedly installed on the top surface of the precast slab. The support frame structure is fixedly installed on the side wall of the main beam. The support frame structure is fixedly installed between the precast slabs. The tie beam structure is installed between the end of the cantilever slab and the bottom of the support frame structure.

[0006] Furthermore, the main beam includes a beam body and a fitting groove, wherein the fitting groove is provided between the top and bottom surfaces of the beam body.

[0007] Furthermore, the precast slab includes: a precast slab body and a fitting pin, wherein the fitting pin is fixedly installed on the bottom surface of the precast slab, and the fitting pin cooperates with the fitting groove.

[0008] Furthermore, the support frame structure includes: a mounting plate, a tension seat, a connecting beam, a threaded sleeve, and a support column. A main screw is fixedly installed on the threaded side wall of the mounting plate, the tension seat is fixedly installed on the side wall of the mounting plate, the connecting beam is installed between the tension seats, a threaded sleeve is fixedly installed at the end of the connecting beam, and the support column is threadedly connected to the inner diameter surface of the threaded sleeve.

[0009] Furthermore, the top and bottom surfaces of the support column are respectively threaded with threaded seats.

[0010] Furthermore, the inclined beam structure includes: an inclined beam and a cantilever plate seat, wherein the inclined beam is connected between the cantilever plate seat and the threaded seat, and the inclined beam, the support column, and the cantilever plate form a right triangle.

[0011] Beneficial effects:

[0012] This utility model provides a large cantilever slab support structure, in which precast slab structures are embedded in the top and bottom surfaces of the main beam, and support frames are fixedly installed on the side walls of the main beam. Support columns are threadedly connected between the support frames. A cantilever slab is cast on the top surface of the precast slab, and the bottom surface of one end of the cantilever slab is fixedly connected to a fixed seat on the top surface of the precast slab by a diagonal tie beam. The entire support structure has high stability and is easy to install. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a large cantilever support structure according to the present invention;

[0014] Figure 2 This is a schematic diagram of the support frame structure of a large cantilever support structure according to the present invention.

[0015] The markings in the diagram are: 1-Main beam, 2-Precast slab, 3-Cantilever slab, 4-Support frame structure, 5-Cable tie beam structure, 11-Beam body, 12-Matching groove, 21-Precast slab body, 22-Matching pin, 41-Mounting plate, 42-Tension seat, 43-Connecting beam, 44-Threaded sleeve, 45-Support column, 46-Main body pin, 47-Threaded seat, 51-Cable tie beam, 52-Cantilever slab seat. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] As shown in the figure, this utility model discloses a large cantilever slab support structure, including: a main beam 1, a precast slab 2, a cantilever slab 3, a support frame structure 4, and a diagonal tie beam structure 5. The precast slab 2 is embedded in the top and bottom surfaces of the main beam 1. The cantilever slab 3 is fixedly installed on the top surface of the precast slab 2. The support frame structure 4 is fixedly installed on the side wall of the main beam 1. The support frame structure 4 is fixedly installed between the precast slabs 2. The diagonal tie beam structure 5 is installed between the end of the cantilever slab 3 and the bottom of the support frame structure 4.

[0018] In this embodiment, the main beam 1 includes a beam body 11 and a fitting groove 12, wherein the fitting groove 12 is provided between the top and bottom surfaces of the beam body 11.

[0019] In this embodiment, the precast slab 2 includes a precast slab body 21 and a fitting pin 22. The fitting pin 22 is fixedly installed on the bottom surface of the precast slab 2, and the fitting pin 22 cooperates with the fitting groove 12.

[0020] In this embodiment, the support frame structure 4 includes: a mounting plate 41, a tension seat 42, a connecting beam 43, a threaded sleeve 44, and a support column 45. A main screw pin 46 is fixedly installed on the threaded side wall of the mounting plate 41. The tension seat 42 is fixedly installed on the side wall of the mounting plate 41. The connecting beam 43 is installed between the tension seats 42. A threaded sleeve 44 is fixedly installed at the end of the connecting beam 43. The support column 45 is threadedly connected to the inner diameter surface of the threaded sleeve 44.

[0021] In this embodiment, the top and bottom surfaces of the support column 45 are respectively threaded with threaded seats 47.

[0022] In this embodiment, the inclined beam structure 5 includes: an inclined beam 51 and a cantilever plate seat 52. The inclined beam 51 is connected between the cantilever plate seat 52 and the threaded seat 47. The inclined beam 51, the support column 45, and the cantilever plate 3 form a right triangle.

[0023] Working principle:

[0024] First, a main beam 1 is provided, which consists of a beam body 11 and fitting grooves 12. Fitting grooves 12 are respectively provided on the top and bottom surfaces of the beam body 11. Precast slab 2 structures are fixedly installed on the top and bottom surfaces of the beam body 11.

[0025] The precast slab 2 structure consists of a precast slab body 21 and a fitting pin 22. The fitting pin 22 is fixedly installed on the bottom surface of the precast slab body 21. The fitting pin 22 cooperates with the fitting groove 12 and is inserted into the fitting groove 12.

[0026] The support frame structure 4 is fixedly installed on the side wall of the main beam 1. The support frame structure 4 consists of a mounting plate 41, a tension seat 42, a connecting beam 43, a threaded sleeve 44, and a support column 45. A main body pin 46 is fixedly installed on the side wall of the mounting plate 41, and the main body pin 46 is threaded into the side wall of the main beam 1. A tension seat 42 is fixedly installed on the other side of the mounting plate 41, and a connecting beam 43 is fixedly installed between the tension seats 42. A threaded sleeve 44 is fixedly installed at the end of the connecting beam 43, and the support column 45 is threaded into the threaded sleeve 44.

[0027] Among them, the top and bottom surfaces of the support column 45 are respectively connected to threaded seats 47, and the threaded seats 47 are fixedly installed on the top and bottom surfaces of the precast slab 21.

[0028] The cable-stayed beam structure 5 consists of a cable-stayed beam 51 and a cantilever plate seat 52. The cantilever plate seat 52 is fixedly installed on the bottom end of the cantilever plate 3, and the cable-stayed beam 51 connects the cantilever plate seat 52 and the threaded seat 47. The cable-stayed beam 51, the support column 45, and the cantilever plate 3 form a right-angled triangle.

[0029] The entire cantilever slab 3 is supported by the precast slab 2, while the areas where the cantilever slab 3 and the precast slab 2 do not contact are supported by the support frame structure 4. The ends of the cantilever slab 3 are supported by the inclined tie beam structure 5. The strength of the support structure of the cantilever slab 3 is ensured by the above three support structures.

[0030] This utility model provides a large cantilever slab support structure. Precast slabs 2 are embedded in the top and bottom surfaces of the main beam 1. Support frames are fixedly installed on the side walls of the main beam 1, and support columns 45 are threadedly connected between the support frames. A cantilever slab 3 is cast on the top surface of the precast slab 2, and one end of the bottom surface of the cantilever slab 3 is fixedly connected to a fixed seat on the top surface of the precast slab 2 by a diagonal tie beam 51. The entire support structure has high stability and is easy to install.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large cantilever slab support structure, comprising: The main beam (1), precast slab (2), cantilever slab (3), support frame structure (4) and diagonal tie beam structure (5) are characterized in that the precast slab (2) is embedded in the top and bottom surfaces of the main beam (1), the cantilever slab (3) is fixedly installed on the top surface of the precast slab (2), the support frame structure (4) is fixedly installed on the side wall of the main beam (1), the support frame structure (4) is fixedly installed between the precast slabs (2), and the diagonal tie beam structure (5) is installed between the end of the cantilever slab (3) and the bottom of the support frame structure (4).

2. The large cantilever support structure according to claim 1, characterized in that, The main beam (1) includes a beam body (11) and a fitting groove (12), wherein the fitting groove (12) is provided between the top and bottom surfaces of the beam body (11).

3. A large cantilever support structure according to claim 2, characterized in that, The precast slab (2) includes a precast slab body (21) and a fitting pin (22). The fitting pin (22) is fixedly installed on the bottom surface of the precast slab (2), and the fitting pin (22) cooperates with the fitting groove (12).

4. A large cantilever support structure according to claim 3, characterized in that, The support frame structure (4) includes: a mounting plate (41), a tension seat (42), a connecting beam (43), a threaded sleeve (44), and a support column (45). The mounting plate (41) has a main screw pin (46) fixedly installed on the threaded side wall. The tension seat (42) is fixedly installed on the side wall of the mounting plate (41). The connecting beam (43) is installed between the tension seats (42). The threaded sleeve (44) is fixedly installed at the end of the connecting beam (43). The support column (45) is threadedly connected to the inner diameter surface of the threaded sleeve (44).

5. A large cantilever support structure according to claim 4, characterized in that, The top and bottom surfaces of the support column (45) are respectively threaded with threaded seats (47).

6. A large cantilever support structure according to claim 5, characterized in that, The inclined beam structure (5) includes: an inclined beam (51) and a cantilever plate seat (52). The inclined beam (51) is connected between the cantilever plate seat (52) and the threaded seat (47). The inclined beam (51), the support column (45), and the cantilever plate (3) form a right triangle.