Steel-concrete composite beam cast-in-place bridge deck slab supporting device

Abstract

The utility model discloses a cast-in-place bridge deck slab supporting device for a steel-concrete composite beam. Comprising two oppositely-arranged main supporting beams, a plurality of bearing beams arranged between the two main supporting beams, and a plurality of mounting units which are arranged on the single main supporting beam, correspond to the bearing beams and are detachably connected with the ends of the bearing beams. The adjusting supporting units are arranged on the single main supporting beams, correspond to the bearing beams and are detachably connected with the middles of the bearing beams. The technical effect that the main supporting beam is detachably connected with the bearing beam is achieved through the structure of the mounting unit and the adjusting supporting unit, and the mounting unit and the adjusting supporting unit have the advantages of being capable of being prefabricated in a factory and installed on site, so that the work dismantling time is greatly shortened, and the dismantling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a steel-concrete composite beam cast-in-place bridge deck supporting device. Background Art

[0002] At present, with the continuous development of bridge construction technology, steel-concrete composite beams are more popular than traditional concrete structure bridges. Conventional steel-concrete composite beam cast-in-place bridge deck support devices are constructed using a steel pipe bracket with a buckle support system. This type of process has problems such as long construction time and high safety risks.

[0003] The document with the authorization announcement number CN210827114U discloses a steel-concrete composite beam cast-in-place bridge deck support device, including two parallel main support beams, a drag plate supporting the cast-in-place bridge deck, a square wood supported under the drag plate, an upper channel steel supported under the square wood, an adjustable height adjustment rod supported between the upper channel steel and the main support beam, a bottom channel steel welded to the main support beam below the adjustment rod, an opposing oblique rod supported between the bottom channel steel and the upper channel steel, and a steel bar head fixed to the upper channel steel. The device uses a rod body to form a structural frame to achieve the technical effect of effectively supporting the steel-concrete composite beam cast-in-place bridge deck.

[0004] However, the device still has the following defects: the device mostly uses a welded structure to complete the installation and support reinforcement of the bottom channel steel, requires on-site construction, and cannot meet the needs of rapid installation and dismantling. Utility Model Content

[0005] In view of the above-mentioned problems, the purpose of the utility model is to provide a steel-concrete composite beam cast-in-place bridge deck support device, which achieves the technical effect of detachable connection between the main support beam and the load-bearing beam through the structure of the installation unit and the adjustment support unit, and both the installation unit and the adjustment support unit have the characteristics of being prefabricated in the factory and installed on site, thereby greatly shortening the work dismantling time and improving the dismantling efficiency.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A steel-concrete composite beam cast-in-place bridge deck support device includes two oppositely arranged main support beams and a plurality of load-bearing beams arranged between the two main support beams, a plurality of installation units arranged on a single main support beam and corresponding to the load-bearing beam and detachably connected to the end of the load-bearing beam, and a plurality of adjustment support units arranged on a single main support beam and corresponding to the load-bearing beam and detachably connected to the middle of the load-bearing beam.

[0008] As a further preferred embodiment of the present invention, a single installation unit includes a bottom plate arranged at the lower end of the top plate of the main support beam, and a vertical plate arranged at the lower end of the bottom plate and parallel to the main support beam and detachably connected to the wing plate of the load-bearing beam.

[0009] As a further preferred embodiment of the present invention, the single adjustment support unit includes a hanging ear arranged at the side end of the main support beam, a lifting ear arranged at the lower end of the middle part of the load-bearing beam, and an adjustment rod connected to the hanging ear at one end and connected to the lifting ear at the other end.

[0010] As a further preferred embodiment of the present invention, the adjusting rod includes a first rod body having one end connected to the hanging ear, a second rod body having one end connected to the hanging ear, and an adjusting screw which is arranged between the first rod body and the second rod body and is threadedly connected to the first rod body and the second rod body at both ends so as to adjust the distance between the first rod body and the second rod body.

[0011] As a further preferred embodiment of the present invention, the adjusting rod further includes two adjusting nuts respectively arranged at the connection between the adjusting screw and the first rod body and the second rod body.

[0012] As a further preferred embodiment of the present invention, the axes of the first rod body, the second rod body and the adjusting screw are located on the same straight line.

[0013] As a further preferred embodiment of the present invention, the single mounting unit also includes a mounting block arranged at the lower end of the vertical plate away from the load-bearing beam, an internal threaded hole arranged in the mounting block and parallel to the vertical plate, a support plate arranged at the lower end of the mounting block and extending to the lower end of the load-bearing beam, and a threaded rod arranged on the support plate and connected to the internal threaded hole.

[0014] As a further preferred embodiment of the present invention, the single installation unit further comprises a fastening plate which is arranged at the upper end of the support plate and is located on the side of the wing plate of the load-bearing beam away from the vertical plate.

[0015] As a further preferred embodiment of the present invention, the single installation unit also includes an internal threaded channel arranged in the support plate and perpendicular to the main support beam, and a supporting external threaded rod threadedly connected to the internal threaded channel and connected to the main support beam at one end.

[0016] As a further preferred embodiment of the present invention, the fastening plate has a bent plate for squeezing the wing plate of the load-bearing beam.

[0017] As a further preferred embodiment of the present invention, an extension plate is provided at the end of the supporting outer screw rod close to the main supporting beam, and a resistance-enhancing layer is provided on the surface of the extension plate.

[0018] As a further preferred embodiment of the present invention, a limiting plate is provided at the end of the supporting outer screw away from the main supporting beam.

[0019] As a further preferred embodiment of the present invention, the vertical plate is connected to the wing plate of the load-bearing beam by bolts.

[0020] As a further preferred embodiment of the present invention, a plurality of longitudinal ribs distributed at intervals are provided at the lower end of the load-bearing beam.

[0021] As a further preferred embodiment of the present invention, a plurality of adjustment blocks distributed at intervals are provided at the upper end of the load-bearing beam, and a template is provided on the adjustment block.

[0022] In summary, the utility model has the following beneficial effects:

[0023] The supporting device provided by the utility model achieves the technical effect of detachable connection between the main supporting beam and the load-bearing beam through the structure of the installation unit and the adjustable support unit, and both the installation unit and the adjustable support unit have the characteristics of being prefabricated in the factory and installed on site, thereby greatly shortening the work dismantling time and improving the dismantling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a schematic diagram of the structure of the utility model at the main viewing angle.

[0025] Attached Figure 2 It is a schematic diagram of the structure of the utility model from a side view angle.

[0026] Attached Figure 3 It is a structural schematic diagram of a local structure B of the utility model.

[0027] Attached Figure 4 It is a schematic diagram of the structure of the utility model from a top view.

[0028] Attached Figure 5 It is a structural schematic diagram of the local structure A of the utility model.

[0029] Attached Figure 6 This is another structural schematic diagram of the local structure B of the utility model.

[0030] Description of the drawings: main support beam 1, load-bearing beam 2, mounting unit 3, adjustment support unit 4, adjustment block 5, template 6;

[0031] Bolt 201, longitudinal rib 202;

[0032] Bottom plate 301, vertical plate 302, mounting block 303, internal thread hole 304, support plate 305, threaded rod 306, fastening plate 307, internal thread hole 308, supporting external thread rod 309, bending plate 310;

[0033] Extension plate 309a, resistance increasing layer 309b, limiting plate 309c;

[0034] Hanging ear 401, lifting ear 402, adjusting rod 403;

[0035] A first rod body 403a, a second rod body 403b, an adjusting screw rod 403c, and an adjusting nut 403d. DETAILED DESCRIPTION

[0036] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0037] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] As attached Figures 1 to 5 As shown, the present embodiment provides a steel-concrete composite beam cast-in-place bridge deck supporting device, comprising two relatively arranged main support beams 1 and a plurality of load-bearing beams 2 arranged between the two main support beams 1, a plurality of installation units 3 arranged on the single main support beam 1 and corresponding to the load-bearing beam 2 and detachably connected to the end of the load-bearing beam 2, and a plurality of adjustment support units 4 arranged on the single main support beam 1 and corresponding to the load-bearing beam 2 and detachably connected to the middle of the load-bearing beam 2.

[0041] It is understandable that, in addition to the above structure, the support device provided in this embodiment also includes a plurality of longitudinal ribs 202 arranged at intervals at the lower end of the load-bearing beam 2, a plurality of adjustment blocks 5 arranged at intervals at the upper end of the load-bearing beam 2, and a template 6 arranged on the adjustment block 5. The above structure and construction process are both prior art, so they are not described in detail in this embodiment.

[0042] In this embodiment, a single installation unit 3 includes a bottom plate 301 disposed at the lower end of the top plate of the main support beam 1, and a vertical plate 302 disposed at the lower end of the bottom plate 301 and arranged parallel to the main support beam 1 and detachably connected to the wing plate of the load-bearing beam 2. More preferably, the vertical plate 302 is connected to the wing plate of the load-bearing beam 2 by bolts 201.

[0043] In this embodiment, the single adjustable support unit 4 includes a hanging ear 401 arranged at the side end of the main support beam 1, a lifting ear 402 arranged at the lower end of the middle part of the load-bearing beam 2, and an adjusting rod 403 connected to the hanging ear 401 at one end and connected to the lifting ear 402 at the other end.

[0044] As a further preferred embodiment of the present invention, the adjusting rod 403 includes a first rod body 403a having one end connected to the hanging ear 401, a second rod body 403b having one end connected to the hanging ear 402, and an adjusting screw 403c which is arranged between the first rod body 403a and the second rod body 403b and is threadedly connected to the first rod body 403a and the second rod body 403b at both ends so as to adjust the distance between the first rod body 403a and the second rod body 403b. The adjusting rod 403 also includes two adjusting nuts 403d which are respectively arranged at the connection between the adjusting screw 403c and the first rod body 403a and the second rod body 403b.

[0045] It should be noted that the axes of the first rod body 403a, the second rod body 403b, and the adjusting screw 403c are located on the same straight line to ensure the support strength, and the connections between the first rod body 403a, the second rod body 403b and the hanging ear 401 and the hanging ear 402 are all detachable connections, and are further preferably bolted. The adjusting nut 403d is prefabricated on the ends of the first rod body 403a and the second rod body 403b, and matches with the internal threaded channels set inside the two rod bodies. The distance between the first rod body 403a and the second rod body 403b can be adjusted by rotating the adjusting screw 403c. The advantage of such a setting is that the structures such as the first rod body 403a, the second rod body 403b, the adjusting screw 403c, and the adjusting nut 403d can all be prefabricated in the factory, and only the installation with the hanging ear 401 and the hanging ear 402 needs to be completed on site, which greatly improves the efficiency of installation and disassembly.

[0046] When the supporting device provided in this embodiment is implemented, the load-bearing beam 2 is first installed, fixed to the mounting unit 3, and then the adjusting support unit 4 is installed, and finally the adjusting block 5 and the template 6 are placed. When dismantling, the adjusting support unit 4 is first dismantled, and then the connection between the mounting unit 3 and the load-bearing beam 2 is released to dismantle the load-bearing beam 2 and the adjusting block 5, and finally the template 6 is dismantled. Since the mounting unit 3 and the adjusting support unit 4 are both prefabricated in the factory and installed on site, the time for work dismantling is greatly shortened and the dismantling efficiency is improved.

[0047] Example 2

[0048] This embodiment optimizes the structure of the installation unit 3 based on the embodiment 1, as shown in the attached Figure 6 As shown, the details are as follows:

[0049] The single installation unit 3 further includes a mounting block 303 disposed at the lower end of the vertical plate 302 away from the load-bearing beam 2, an internal threaded hole 304 disposed in the mounting block 303 and parallel to the vertical plate 302, a support plate 305 disposed at the lower end of the mounting block 303 and extending to the lower end of the end of the load-bearing beam 2, and a threaded rod 306 disposed on the support plate 305 and connected to the internal threaded hole 304. The support plate 305 can be provided to lift up and support the load-bearing beam 2, share the force of the vertical plate 302, and improve the strength and stability of the structure; the threaded rod 306 is provided to make the support plate 305 detachable to avoid interfering with the installation of the load-bearing beam 2, and to make the support plate 305 adjustable in height in the vertical direction to ensure that the support rod 305 plays the role of supporting the load-bearing beam 2.

[0050] As a further preference of this embodiment, the single installation unit 3 further comprises a fastening plate 307 arranged at the upper end of the support plate 305 and located on the side of the wing plate of the load-bearing beam 2 away from the vertical plate 302. Further preferably, the fastening plate 307 has a bending plate 310 for squeezing the wing plate of the load-bearing beam 2. The fastening plate 307 plays the role of clamping the wing plate of the load-bearing beam 2 together with the vertical plate 302, and the special shape of the bending plate 310 enables the steel plate to have deformation recovery ability, thereby playing the role of fully clamping the wing plate of the load-bearing beam 2 and ensuring the stability of the load-bearing beam 2.

[0051] As a further preferred embodiment of the present invention, the single installation unit 3 further includes an internal threaded hole 308 disposed in the support plate 305 and perpendicular to the main support beam 1, and a supporting external threaded rod 309 which is screwed to the internal threaded hole 308 and one end of which is connected to the main support beam 1. The supporting external threaded rod 309 can be rotated to abut against the side of the main support beam 1, thereby further sharing the force of the support plate 305 and improving the strength and stability of the structure as a whole. At the same time, the supporting external threaded rod 309 can also play a role in positioning and installing the load-bearing beam 2.

[0052] As a further preferred embodiment of the present invention, an extension plate 309a is provided at the end of the supporting outer screw rod 309 close to the main supporting beam 1, a resistance increasing layer 309b is provided on the surface of the extension plate 309a, and a limiting plate 309c is provided at the end of the supporting outer screw rod 309 away from the main supporting beam 1. The extension plate 309a is used to increase the connection area between the supporting outer threaded rod 309 and the side of the main supporting beam 1 to reduce the pressure, the resistance increasing layer 309b can be made of a material with a large friction coefficient such as rubber, or a pattern that increases the friction coefficient can be provided on the surface of the extension plate, which is mainly used to prevent the supporting outer threaded rod 309 from slipping, and the limiting plate 309c is used to prevent the supporting outer threaded rod 309 from falling off from the inner threaded channel 308.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A steel-concrete composite beam cast-in-place bridge deck support device, comprising two main support beams (1) arranged opposite to each other and a plurality of load-bearing beams (2) arranged between the two main support beams (1), characterized in that: It also comprises a plurality of mounting units (3) arranged on the single main support beam (1) and corresponding to the load-bearing beam (2) and detachably connected to the end of the load-bearing beam (2), and a plurality of adjustment support units (4) arranged on the single main support beam (1) and corresponding to the load-bearing beam (2) and detachably connected to the middle of the load-bearing beam (2).

2. A cast-in-place steel-concrete composite beam bridge deck support device according to claim 1, characterized in that: A single installation unit (3) comprises a bottom plate (301) arranged at the lower end of the top plate of the main support beam (1), and a vertical plate (302) arranged at the lower end of the bottom plate (301), arranged parallel to the main support beam (1) and detachably connected to the wing plate of the load-bearing beam (2).

3. The cast-in-place bridge deck support device of steel-concrete composite beam according to claim 1, characterized in that: The single adjustable support unit (4) comprises a hanging ear (401) arranged at the side end of the main support beam (1), a lifting ear (402) arranged at the lower end of the middle part of the load-bearing beam (2), and an adjusting rod (403) having one end connected to the hanging ear (401) and the other end connected to the lifting ear (402).

4. The cast-in-place bridge deck support device for steel-concrete composite beams according to claim 3 is characterized in that: The adjusting rod (403) comprises a first rod body (403a) having one end connected to the hanging ear (401), a second rod body (403b) having one end connected to the hanging ear (402), and an adjusting screw (403c) arranged between the first rod body (403a) and the second rod body (403b) and having two ends respectively threadedly connected to the first rod body (403a) and the second rod body (403b) so as to adjust the distance between the first rod body (403a) and the second rod body (403b).

5. The cast-in-situ bridge deck support device for steel-concrete composite beams according to claim 4 is characterized in that: The adjusting rod (403) further comprises two adjusting nuts (403d) respectively arranged at the connection between the adjusting screw rod (403c) and the first rod body (403a) and the second rod body (403b).

6. The cast-in-situ bridge deck support device for steel-concrete composite beams according to claim 4, characterized in that: The axes of the first rod body (403a), the second rod body (403b) and the adjusting screw rod (403c) are located on the same straight line.

7. The cast-in-situ bridge deck support device of steel-concrete composite beam according to claim 2, characterized in that: The single mounting unit (3) further comprises a mounting block (303) arranged at the lower end of a side of the vertical plate (302) away from the load-bearing beam (2), an internal threaded hole (304) arranged in the mounting block (303) and arranged parallel to the vertical plate (302), a support plate (305) arranged at the lower end of the mounting block (303) and extending to the lower end of the end of the load-bearing beam (2), and a threaded rod (306) arranged on the support plate (305) and connected to the internal threaded hole (304).

8. The cast-in-situ bridge deck supporting device for steel-concrete composite beams according to claim 7, characterized in that: The single installation unit (3) further comprises a fastening plate (307) arranged at the upper end of the support plate (305) and located on the side of the wing plate of the load-bearing beam (2) away from the vertical plate (302).

9. The cast-in-situ bridge deck support device of steel-concrete composite beam according to claim 7, characterized in that: The single installation unit (3) further comprises an internal threaded hole (308) arranged in the support plate (305) and perpendicular to the main support beam (1), and a supporting external threaded rod (309) threadedly connected to the internal threaded hole (308) and having one end connected to the main support beam (1).

10. The cast-in-situ bridge deck support device of steel-concrete composite beam according to claim 8, characterized in that: The fastening plate (307) has a bent plate (310) for pressing the wing plate of the load-bearing beam (2).

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