Fabricated bridge girder box structure

By designing the prefabricated bridge beam box structure and using elastic support components and other components, the problem of inability to lay geotextiles or films for maintenance under the shape limitation of box beams is solved, automatic support and water spray maintenance are achieved, and water and electricity costs are reduced.

CN222796175UActive Publication Date: 2025-04-25CHINA RAILWAY FIRST GRP SECOND ENG CO LTD
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Patent Information

Application Number
CN202420992480.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2025-04-25
Estimated Expiration
2034-05-09

AI Technical Summary

Technical Problem

Under the shape limitations of the box girder, geotextile or film cannot be laid on the inner top of the box girder for auxiliary maintenance, resulting in the need to turn on the spray device for long-term water and spray maintenance, which costs water and electricity, and increases costs.

Method used

A prefabricated bridge beam box structure is designed, including box beam assembly, sliding insertion block, elastic support assembly, position fixing assembly and driving assembly. Through the support rod and baffle of the elastic support assembly, auxiliary rotating ring and limit plate, threaded rotating rod and limit support rod, control rod and pull-up plate, automatic support and water spray maintenance of civil and wooden cloth or film are achieved.

Benefits of technology

Through the automatic recovery of the elastic support component, the civil and wooden cloth or film is always attached to the inner wall of the box girder, which achieves warmth and water spraying maintenance, avoids the water and electricity bills caused by long-term spraying and reduces maintenance costs.

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Abstract

The utility model provides an assembly type bridge girder box structure, belongs to the technical field of bridge construction, and aims to solve the problems that geotechnical cloth or a thin film cannot be laid on the top of the inner side of a box girder for auxiliary maintenance due to limitation of the shape of the box girder, a spraying device needs to be started for a long time for water spraying maintenance during maintenance, long-time spraying wastes water and electricity, and the maintenance cost is low. The device comprises a box girder assembly, the sliding insertion blocks are slidably inserted into the inner side of the box girder assembly. One end of the top of the elastic supporting assembly is slidably inserted into a groove of the sliding insertion block. The position fixing assembly is installed in the elastic supporting assembly. The driving assembly is in contact with the elastic supporting assembly; the inner supporting rods can play an auxiliary supporting role on the civil engineering cloth or the thin film, so that the civil engineering cloth or the thin film is attached to the inner wall of the box girder body all the time, warm keeping and water spraying maintenance are facilitated, and the elastic supporting assemblies are detachable and can be repeatedly used.
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Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and more specifically, particularly relates to an assembled bridge beam box structure. Background Art

[0002] A box girder is a type of beam in a bridge project. It is hollow inside and has flanges on both sides of the upper part. The box girder of a reinforced concrete structure is divided into prefabricated box girder and cast-in-place box girder. The box girder prefabricated in an independent site can be erected in combination with a bridge-erecting machine after the lower project is completed, which can speed up the project progress and save construction time. The box girder is mainly made of cast concrete. After the concrete is formed, it is also necessary to sprinkle water or maintain heat. Due to the shape of the box girder, geotextiles or films cannot be laid on the top of the inner side of the box girder for auxiliary maintenance. During maintenance, the spraying device needs to be turned on for a long time for spraying and curing. Long-term spraying consumes water and electricity, increasing costs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an assembled bridge beam box structure to solve the problem raised in the above background technology that due to the limitation of the box beam shape, geotextile or film cannot be laid on the inner top of the box beam for auxiliary maintenance. During maintenance, the spraying device needs to be turned on for a long time for water spraying maintenance, and long-term spraying wastes water and electricity, increasing costs.

[0004] The utility model is an assembled bridge beam box structure, which is achieved by the following specific technical means:

[0005] A prefabricated bridge beam box structure, comprising: a box beam assembly, a sliding block, an elastic support assembly, a position fixing assembly and a driving assembly; the sliding block is a T-shaped structure with a groove provided inside; the sliding block is slidably inserted into the inner side of the box beam assembly; the top end of the elastic support assembly is slidably inserted into the inside of the sliding block groove; the position fixing assembly is installed inside the elastic support assembly; the driving assembly is in contact with the elastic support assembly; the elastic support assembly comprises: a strut and a baffle; the strut is an L-shaped structure as a whole, and the top end of the strut is slidably inserted into the inside of the sliding block slot; the baffle is slidably installed inside the sliding block slot and is fixedly connected to the strut.

[0006] In at least some embodiments, the box beam assembly includes: a box beam body and a sliding groove; the box beam body as a whole is a square frame structure; the sliding groove is a T-shaped structure, the sliding groove is opened on the inner side of the box beam body, and the sliding plug is slidably inserted into the sliding groove.

[0007] In at least some embodiments, the elastic support assembly also includes: a spring, a limit plate and an auxiliary rotating ring; the spring is installed inside the groove of the sliding block and contacts with the baffle, and the spring can play the role of elastically supporting the strut; the number of limit plates is set to two groups, the limit plates are fixedly installed on the surface of the strut, and the limit plates can play the role of limiting the lateral sliding of the auxiliary rotating ring; the auxiliary rotating ring is rotatably installed on the surface of the strut, and the auxiliary rotating ring can play the role of auxiliary supporting civil engineering cloth or film.

[0008] In at least some embodiments, the position fixing assembly includes: a threaded rotating rod and a limiting support rod; one end of the threaded rotating rod is rotated and inserted into the support rod groove; the limiting support rod is fixedly installed in the support rod groove, and the limiting support rod can limit the rotation of the push plate.

[0009] In at least some embodiments, the position fixing component also includes: a push plate and a fixed insert rod; the push plate is slidably installed inside the support rod slide groove and is slidably connected to the limiting support rod, the middle part of the push plate is threadedly connected to the threaded rotating rod, and the rotation of the threaded rotating rod can control the push plate to slide; one end of the fixed insert rod is slidably inserted into the support rod groove and fixedly connected to the push plate.

[0010] In at least some embodiments, the driving assembly includes: a control rod and a pull plate; the control rod is a rectangular parallelepiped structure; the pull plate is a trapezoidal structure as a whole, the middle of the pull plate is fixedly connected to the control rod, and one side of the pull plate is fixedly connected to the earthwork cloth or film.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model is provided with an elastic support component inside, and an elastic sliding support rod is provided inside the elastic support component. When the civil cloth is placed, the support rod can automatically return to its original position due to the push of the spring, and plays an auxiliary supporting role for the civil cloth or the film, so that the civil cloth or the film is always in contact with the inner wall of the box beam body, which is convenient for warming and water spraying maintenance. The elastic support component is detachable and can be reused. A position fixing component is also provided inside the device to avoid the problem of the elastic support component sliding due to force when the civil cloth is laid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main body structure of the utility model when viewed from above.

[0014] Figure 2 It is a schematic diagram of the enlarged structure of the A part of the utility model.

[0015] Figure 3 It is a bottom view structural schematic diagram of a box beam assembly of the utility model.

[0016] Figure 4 It is a schematic cross-sectional structure diagram of the elastic support assembly of the utility model.

[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the position fixing component of the utility model.

[0018] Figure 6 It is a schematic diagram of the axial side view of the driving component of the utility model.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Box beam assembly; 101. Box beam body; 102. Sliding groove; 2. Sliding plug; 3. Elastic support assembly; 301. Support rod; 302. Baffle; 303. Spring; 304. Limit plate; 305. Auxiliary rotating ring; 4. Position fixing assembly; 401. Threaded rotating rod; 402. Limit support rod; 403. Push plate; 404. Fixed plug; 5. Driving assembly; 501. Control rod; 502. Pull plate. DETAILED DESCRIPTION

[0021] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples. Example

[0022] As attached Figure 1 To Attachment Figure 6 As shown:

[0023] The utility model provides an assembled bridge beam box structure, comprising: a box beam component 1, a sliding block 2, an elastic support component 3, a position fixing component 4 and a driving component 5; the sliding block 2 is a T-shaped structure with a groove provided inside as a whole; the sliding block 2 is slidably inserted on the inner side of the box beam component 1; the top end of the elastic support component 3 is slidably inserted into the groove of the sliding block 2; the position fixing component 4 is installed inside the elastic support component 3; the driving component 5 is in contact with the elastic support component 3; the elastic support component 3 comprises: a strut 301 and a baffle 302; the strut 301 is an L-shaped structure as a whole, and the top end of the strut 301 is slidably inserted into the sliding groove of the sliding block 2; the baffle 302 is slidably installed in the sliding groove of the sliding block 2 and is fixedly connected to the strut 301.

[0024] like Figure 3 As shown, the box beam assembly 1 includes: a box beam body 101 and a sliding groove 102; the box beam body 101 is a square frame structure as a whole; the sliding groove 102 is a T-shaped structure, the sliding groove 102 is opened on the inner side of the box beam body 101, and the sliding plug 2 is slidably inserted into the sliding groove 102.

[0025] like Figure 4As shown, the elastic support component 3 also includes: a spring 303, a limit plate 304 and an auxiliary rotating ring 305; the spring 303 is installed inside the groove of the sliding block 2 and contacts with the baffle 302, and the spring 303 can play the role of elastically supporting the strut 301; the limit plates 304 are set in two groups, and the limit plates 304 are fixedly installed on the surface of the strut 301, and the limit plates 304 can play the role of limiting the lateral sliding of the auxiliary rotating ring 305; the auxiliary rotating ring 305 is rotatably installed on the surface of the strut 301, and the auxiliary rotating ring 305 can play the role of auxiliary supporting civil engineering cloth or film.

[0026] like Figure 5 As shown, the position fixing component 4 includes: a threaded rotating rod 401 and a limiting support rod 402; one end of the threaded rotating rod 401 is rotated and inserted into the groove of the support rod 301; the limiting support rod 402 is fixedly installed in the groove of the support rod 301, and the limiting support rod 402 can limit the rotation of the push plate 403.

[0027] like Figure 5 As shown, the position fixing component 4 also includes: a push plate 403 and a fixed insert rod 404; the push plate 403 is slidably installed inside the slide groove of the support rod 301 and is slidably connected to the limiting support rod 402, the middle part of the push plate 403 is threadedly connected to the threaded rotating rod 401, and the rotation of the threaded rotating rod 401 can control the push plate 403 to slide; one end of the fixed insert rod 404 is slidably inserted into the groove of the support rod 301 and is fixedly connected to the push plate 403.

[0028] like Figure 6 As shown, the driving assembly 5 includes: a control rod 501 and a pull plate 502; the control rod 501 is a rectangular parallelepiped structure; the pull plate 502 is a trapezoidal structure as a whole, the middle part of the pull plate 502 is fixedly connected to the control rod 501, and one side of the pull plate 502 is fixedly connected to the civil engineering cloth or film.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In the present invention, when in use, align the sliding plug block 2 with the sliding groove 102 and insert it. After controlling the elastic support component 3 to slide to a suitable position, rotate the threaded rotating rod 401. The thread on the surface of the threaded rotating rod 401 will push the push plate 403 to slide. The push plate 403 will not rotate due to the limit of the limit support rod 402, but will slide along the inner sliding groove of the support rod 301. The push plate 403 pushes the fixed plug rod 404 to slide and contact the inside of the beam body 101, thereby fixing the position of the elastic support component 3. After the elastic support component 3 is installed, fix the civil engineering cloth on the pull plate On one side of 502, the civil engineering cloth or film is pulled to slide by the pull plate 502. Since the pull plate 502 is a trapezoidal structure, the pull plate 502 slides and is inserted into the gap between the auxiliary rotating ring 305 and the inner wall of the box beam body 101. The inclined surface of the pull plate 502 will push the auxiliary rotating ring 305 and the support rod 301 to slide downward, and the spring 303 is forced to shrink. The pull plate 502 passes through the auxiliary rotating ring 305, and the civil engineering cloth at the rear end of the pull plate 502 is auxiliary supported by the auxiliary rotating ring 305. Water can be directly sprayed on the surface of the civil engineering cloth, which plays a role in heat preservation and continuous maintenance of the box beam body 101.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An assembled bridge beam box structure, comprising: A box beam assembly (1), a sliding block (2), an elastic support assembly (3), a position fixing assembly (4) and a driving assembly (5); the sliding block (2) is a T-shaped structure with a groove provided inside; the sliding block (2) is slidably inserted inside the box beam assembly (1); the top end of the elastic support assembly (3) is slidably inserted into the groove of the sliding block (2); the position fixing assembly (4) is installed inside the elastic support assembly (3); the driving assembly (5) is in contact with the elastic support assembly (3); the elastic support assembly (3) comprises: a support rod (301) and a baffle (302); the support rod (301) is an L-shaped structure, the top end of the support rod (301) is slidably inserted into the groove of the sliding block (2); the baffle (302) is slidably installed inside the groove of the sliding block (2) and is fixedly connected to the support rod (301).

2. According to claim 1, the assembled bridge beam box structure is characterized in that: The box beam assembly (1) comprises: a box beam body (101) and a sliding groove (102); the box beam body (101) is a square frame structure as a whole; the sliding groove (102) is a T-shaped structure, the sliding groove (102) is arranged on the inner side of the box beam body (101), and the sliding insert (2) is slidably inserted into the sliding groove (102).

3. According to claim 1, the assembled bridge beam box structure is characterized in that: The elastic support assembly (3) further comprises: a spring (303), a limit plate (304) and an auxiliary rotating ring (305); the spring (303) is installed inside the groove of the sliding plug (2) and contacts the baffle (302); the limit plates (304) are provided in two groups, and the limit plates (304) are fixedly installed on the surface of the support rod (301); and the auxiliary rotating ring (305) is rotatably installed on the surface of the support rod (301).

4. The assembled bridge beam box structure according to claim 1 is characterized in that: The position fixing assembly (4) comprises: a threaded rotating rod (401) and a limiting support rod (402); one end of the threaded rotating rod (401) is rotated and inserted into the groove of the support rod (301); and the limiting support rod (402) is fixedly installed in the groove of the support rod (301).

5. The assembled bridge beam box structure according to claim 4 is characterized in that: The position fixing assembly (4) further comprises: a push plate (403) and a fixed insert rod (404); the push plate (403) is slidably mounted inside the slide groove of the support rod (301) and is slidably connected to the limit support rod (402), and the middle portion of the push plate (403) is threadedly connected to the threaded rotating rod (401); one end of the fixed insert rod (404) is slidably inserted into the groove of the support rod (301) and is fixedly connected to the push plate (403).

6. The assembled bridge beam box structure according to claim 1, characterized in that: The driving assembly (5) comprises: a control rod (501) and a pull plate (502); the control rod (501) is a rectangular parallelepiped structure; the pull plate (502) is a trapezoidal structure as a whole, the middle of the pull plate (502) is fixedly connected to the control rod (501), and one side of the pull plate (502) is fixedly connected to the earthwork cloth or film.