Adjustable door type bent cap tensioning platform

Abstract

The utility model belongs to the technical field of cover beam tensioning construction, and discloses an adjustable door type cover beam tensioning platform which comprises a cantilever structure, a fixing structure and an operation platform, the cantilever structure comprises a plurality of first cantilever beams, and the first cantilever beams are arranged on the bottom side of a cover beam at intervals in the second horizontal direction; the fixing structure comprises a plurality of fixing frames arranged at intervals in the first horizontal direction, and each fixing frame is arranged on the outer side of the cover beam and the outer side of the cantilever structure in a sleeving mode so that the cantilever structure can be fixed to the cover beam. The fixing frame comprises two fixing beams and two fixing rods, the two fixing beams are arranged on the two sides of the cover beam at intervals in the vertical direction, the two connecting rods are arranged on the two sides of the cover beam at intervals in the second horizontal direction, and the connecting rods extend in the vertical direction and are arranged between the two fixing beams in the second horizontal direction and the vertical direction in a position-adjustable mode. The device can be suitable for cover beams of different models, is high in universality, not prone to overturning, high in safety and capable of being repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of cap beam tensioning construction technology, and in particular to an adjustable portal cap beam tensioning platform. Background Technology

[0002] With the development of infrastructure and the increase in the number of bridges being renovated and expanded, the application of portal girder is very common, and the tensioning operation of portal girder has become an important part of the construction process of portal girder.

[0003] The traditional portal girder tensioning platforms used in existing technologies employ ground-mounted supports and hanging baskets, which not only involve cumbersome construction processes, long dismantling and erection cycles, high labor intensity, and low construction efficiency, but also pose significant safety hazards. Furthermore, different tensioning platforms need to be built for different types of portal girder structures, easily leading to resource waste and impacting the construction progress. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable portal girder tensioning platform that is applicable to different types of portal girder and can effectively improve construction efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An adjustable portal girder tensioning platform is provided, comprising:

[0007] The cantilever structure includes a plurality of first cantilever beams, each of which extends along a first horizontal direction and extends to the outside of the cap beam, and the plurality of first cantilever beams are spaced apart along a second horizontal direction on the bottom side of the cap beam;

[0008] The fixed structure includes multiple fixed frames spaced apart along the first horizontal direction, each fixed frame being sleeved on the outside of the cap beam and the cantilever structure, the fixed frame comprising:

[0009] Two fixed beams are arranged vertically at intervals on both sides of the cap beam, and each fixed beam extends along the second horizontal direction;

[0010] Two connecting rods are spaced apart on both sides of the cover beam along the second horizontal direction, and each connecting rod extends along the vertical direction. The connecting rods are adjustable in position between the two fixed beams along both the second horizontal direction and the vertical direction.

[0011] The work platform is set on multiple first cantilever beams and is used to support the workers;

[0012] The first horizontal direction is perpendicular to the second horizontal direction.

[0013] As an optional solution for the adjustable portal girder tensioning platform, the fixed beam includes:

[0014] Two channel steels are spaced apart along the first horizontal direction, and each of the channel steels extends along the second horizontal direction. A clearance is provided between the two channel steels to allow the connecting rod to pass through.

[0015] Multiple connecting plates are spaced apart along the second horizontal direction, and each connecting plate is disposed between two channel steels for connecting the two channel steels;

[0016] Fasteners are threaded through the connecting rod, and a fastening hole is opened on one of the channel steels, and the fasteners are screwed into the fastening hole.

[0017] As an optional solution for the adjustable portal girder tensioning platform, the connecting rod is made of angle steel.

[0018] As an optional solution for the adjustable portal girder tensioning platform, the fixed frame further includes a reinforcing component, which includes:

[0019] Multiple precision-rolled threaded steel bars are spaced apart on both sides of the cap beam along the second horizontal direction. Each precision-rolled threaded steel bar extends along the vertical direction, and its two ends are respectively inserted into the two fixed beams.

[0020] Multiple gaskets are provided, with one gasket fitted onto the end of each of the precision-rolled threaded steel bars, and the gaskets abut against the fixed beam;

[0021] Multiple locking elements are provided, with one locking element fitted onto the end of each of the precision-rolled threaded steel bars, and the locking element abutting against the side of the gasket away from the fixed beam.

[0022] As an optional solution for the adjustable portal girder tensioning platform, the working platform includes a support platform and a protective component. The support platform is mounted on multiple first cantilever beams, and the protective component is mounted on the support platform.

[0023] As an optional solution for the adjustable portal girder tensioning platform, the support platform includes a support frame and a support plate. The support frame is mounted on a plurality of first cantilever beams, and the support plate is mounted on the support frame.

[0024] As an optional solution for the adjustable portal girder tensioning platform, the support frame includes:

[0025] Multiple first poles are spaced apart along the first horizontal direction, each first pole extends along the second horizontal direction and is erected on multiple first cantilever beams;

[0026] Multiple second poles are spaced apart along the second horizontal direction, each second pole extending along the first horizontal direction and resting on multiple first poles;

[0027] The support plate is disposed on a plurality of the second rods.

[0028] As an optional solution for the adjustable portal girder tensioning platform, the protective components include:

[0029] Multiple guard bars are spaced apart circumferentially on the support platform, and each guard bar extends along the vertical direction;

[0030] A protective net is installed around the outside of the multiple protective poles.

[0031] As an optional solution for the adjustable portal girder tensioning platform, the protective net is provided with an entrance / exit on the side adjacent to the girder, and a protective door is rotatably provided at the entrance / exit.

[0032] As an optional solution for the adjustable portal girder tensioning platform, the cantilever structure further includes a plurality of second cantilever beams, each of which extends along the first horizontal direction and extends to the outside of the girder, and the plurality of second cantilever beams are spaced apart above the girder along the second horizontal direction.

[0033] The beneficial effects of this utility model are:

[0034] This utility model provides an adjustable portal girder tensioning platform, including a cantilever structure, a fixed structure, and a working platform. The cantilever structure includes multiple first cantilever beams, each extending along a first horizontal direction to the outside of the girder. These first cantilever beams are spaced apart along a second horizontal direction on the bottom side of the girder. The fixed structure includes multiple fixed frames spaced apart along the first horizontal direction. Each fixed frame is fitted onto the outside of the girder and the cantilever structure to fix the cantilever structure to the girder. Each fixed frame includes two fixed beams and two fixed rods. The two fixed beams are spaced apart vertically on both sides of the girder, each extending along a second horizontal direction. Two connecting rods are spaced apart along the second horizontal direction on both sides of the girder, each extending vertically. The connecting rods are adjustable in position between the two fixed beams along both the second horizontal and vertical directions to accommodate different girder models, offering high flexibility and versatility. Furthermore, this tensioning platform exhibits high stability, is not easily overturned, has high safety, and is reusable, thus reducing construction costs. Attached Figure Description

[0035] Figure 1 This is a front view of the adjustable portal girder tensioning platform provided in a specific embodiment of this utility model;

[0036] Figure 2 This is a side view of the adjustable portal girder tensioning platform provided in a specific embodiment of this utility model;

[0037] Figure 3 This is a top view of the adjustable portal girder tensioning platform provided in the specific embodiments of this utility model;

[0038] Figure 4 This is a structural schematic diagram of the connection between the connecting rod and the fixed beam provided in a specific embodiment of this utility model;

[0039] Figure 5 This is a schematic diagram of the structure of the reinforcing component provided in a specific embodiment of this utility model;

[0040] Figure 6 This is a schematic diagram of the protective components and canopy provided in a specific embodiment of this utility model.

[0041] In the picture:

[0042] 100. Cap beam; 101. Cap beam stop block; 200. Column;

[0043] 1. Cantilever structure; 11. First cantilever beam; 12. Second cantilever beam;

[0044] 2. Fixed structure; 21. Fixed frame;

[0045] 211. Fixed beam; 2111. Channel steel; 2112. Connecting plate;

[0046] 212. Connecting rod; 2121. Fastener;

[0047] 213. Reinforcing component; 2131. Precision rolled threaded steel bar; 2132. Gasket; 2133. Locking component;

[0048] 3. Operating platform;

[0049] 31. Support platform; 311. Support frame; 3111. First pole; 3112. Second pole; 312. Support plate;

[0050] 32. Protective components; 321. Protective poles; 322. Protective netting; 3221. Protective doors;

[0051] 33. Ceiling. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0056] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0057] like Figures 1 to 6As shown, this embodiment provides an adjustable portal girder tensioning platform, including a cantilever structure 1, a fixed structure 2, and a working platform 3. The cantilever structure 1 includes a plurality of first cantilever beams 11, each of which extends along a first horizontal direction and extends to the outside of the girder 100. The plurality of first cantilever beams 11 are spaced apart along a second horizontal direction on the bottom side of the girder 100. The fixed structure 2 includes a plurality of fixed frames 21 spaced apart along the first horizontal direction. Each fixed frame 21 is fitted onto the outside of the girder 100 and the cantilever structure 1 to fix the cantilever structure 1 to the girder 100. The fixed frame 21 includes two fixed beams 211 and two fixed rods. The two fixed beams 211 are arranged vertically on both sides of the cap beam 100, and each fixed beam 211 extends along a second horizontal direction. The two connecting rods 212 are arranged horizontally on both sides of the cap beam 100, and each connecting rod 212 extends vertically. The connecting rods 212 are adjustable in position between the two fixed beams 211 in both the second horizontal and vertical directions to accommodate different models of cap beams 100, thus offering high flexibility and versatility. At the same time, the tensioning platform has high stability, is not easy to overturn, has high safety, and can be reused, which helps to reduce construction costs.

[0058] For example, in this embodiment, two fixed frames 21 are provided, the cap beam 100 is placed on the column 200, and the two fixed frames 21 are spaced apart on both sides of the column 200 along the first horizontal direction to ensure the stability of the cantilever structure 1.

[0059] Specifically, the cantilever structure 1 includes two first cantilever beams 11. These two first cantilever beams 11 abut against the bottom side of the cap beam 100 and also against the outer wall of the bottom column 200 of the cap beam 100. Along the second horizontal direction, the distance between each first cantilever beam 11 and the edge of the cap beam 100 is greater than 20 cm, further improving the stability of the cantilever structure 1 and thus ensuring the stability of the tensioning platform. For example, the first cantilever beam 11 is an I-beam, which is readily available and has good shear resistance.

[0060] Optionally, the cantilever structure 1 further includes a plurality of second cantilever beams 12, each extending along a first horizontal direction and reaching the outer side of the cap beam 100. The plurality of second cantilever beams 12 are spaced apart above the cap beam 100 along a second horizontal direction. A fixing beam 211 located above the cap beam 100 abuts against the upper part of the second cantilever beams 12, preventing the fixing beam 211 from directly abutting against the cap beam 100 and ensuring the integrity of the cap beam 100 surface. Specifically, one end of each second cantilever beam 12 abuts against the cap beam stop 101, and the other end extends to the outer side of the cap beam 100; furthermore, along the second horizontal direction, the distance between each second cantilever beam 12 and the edge of the cap beam 100 is greater than 20 cm. Exemplarily, two second cantilever beams 12 are also provided, and each second cantilever beam 12 is also an I-beam.

[0061] Optionally, the fixed beam 211 includes two channel steels 2111 and multiple connecting plates 2112. The two channel steels 2111 are spaced apart along a first horizontal direction, and each channel steel 2111 extends along a second horizontal direction. A clearance gap is provided between the two channel steels 2111 to allow the connecting rod 212 to pass through. The multiple connecting plates 2112 are spaced apart along the second horizontal direction, and each connecting plate 2112 is disposed between two channel steels 2111 for connecting the two channel steels 2111. A fastener 2121 passes through the connecting rod 212. One of the channel steels 2111 has a fastening hole, and the fastener 2121 is threaded into the fastening hole to achieve a detachable connection between the fastener 2121 and the fixed beam 211. The operation is simple and convenient, and the opening position of the fastening hole can be set as needed according to the size of the cap beam 100 to suit different models of cap beam 100. For example, the connecting plate 2112 is welded to the two channel steels 2111.

[0062] Specifically, multiple fasteners 2121 are threaded onto the connecting rod 212, and multiple fastening holes are correspondingly provided on the channel steel 2111. The multiple fasteners 2121 are threaded into the multiple fastening holes one by one to further improve the connection stability between the connecting rod 212 and the fixed beam 211. For example, the fasteners 2121 are bolts, and the fastening holes are threaded holes.

[0063] Furthermore, the connecting rod 212 is made of angle steel, which is not only easy to obtain but also has good shear resistance. For example, the angle steel is 5×5cm.

[0064] Optionally, the fixed frame 21 further includes a reinforcing component 213, which includes multiple threaded steel bars 2131, multiple gaskets 2132, and multiple locking elements 2133. Two threaded steel bars 2131 are spaced apart on both sides of the cap beam 100 along the second horizontal direction. Each threaded steel bar 2131 extends vertically, and its two ends are respectively inserted into the two fixed beams 211. Each end of the threaded steel bar 2131 is fitted with a gasket 2132 and a locking element 2133. The gasket 2132 abuts against the fixed beam 211, and the locking element 2133 abuts against the side of the gasket 2132 away from the fixed beam 211 to fix the threaded steel bar 2131 vertically. This method can be applied to different types of cap beams 100 and can improve the overall tensile strength of the tensioning platform, ensuring the safety of the tensioning platform. Specifically, the locking element 2133 is a nut commonly used in the art. Exemplarily, in this embodiment, two precision-rolled threaded steel bars 2131 are provided, and four washers 2132 and four locking elements 2133 are provided.

[0065] Optionally, the work platform 3 includes a support platform 31 and a protective component 32. The support platform 31 is mounted on a plurality of first cantilever beams 11, and the protective component 32 is mounted on the support platform 31 to prevent workers from falling from the support platform 31 and to ensure the safety of workers.

[0066] Furthermore, the support platform 31 includes a support frame 311 and a support plate 312. The support frame 311 is mounted on a plurality of first cantilever beams 11, and the support plate 312 is mounted on the support frame 311. It has good load-bearing capacity, and the materials are simple and readily available, making it economical.

[0067] Furthermore, the support frame 311 includes a plurality of first rods 3111 and a plurality of second rods 3112. The plurality of first rods 3111 are spaced apart along a first horizontal direction, and each first rod 3111 extends along a second horizontal direction and is supported on a plurality of first cantilever beams 11. The plurality of second rods 3112 are spaced apart along the second horizontal direction, and each second rod 3112 extends along the first horizontal direction and is supported on a plurality of first rods 3111. The support plate 312 is disposed on a plurality of second rods 3112. That is, the plurality of first rods 3111 and the plurality of second rods 3112 form a grid, which is lightweight and has a strong load-bearing capacity. Specifically, in this embodiment, the first rods 3111 are I-beams, the second rods 3112 are square timber, and the support plate 312 is bamboo plywood.

[0068] Optionally, the protective component 32 includes a protective net 322 and multiple protective rods 321. The multiple protective rods 321 are circumferentially spaced on the support platform 31, and each protective rod 321 extends vertically. The protective net 322 surrounds the outside of the multiple protective rods 321, and the materials are simple and readily available. Specifically, there are four protective rods 321, which are commonly used steel pipes in the art; the protective net 322 is C-shaped and is made of wire mesh.

[0069] Furthermore, an entrance / exit is provided on the side of the protective net 322 adjacent to the cap beam 100, and a protective door 3221 is rotatably provided at the entrance / exit to facilitate the entry and exit of the tensioning platform for workers.

[0070] Specifically, the work platform 3 also includes a canopy 33, which is vertically spaced on the support platform 31 and mounted on multiple guardrails 321, providing shade and rain protection for workers and improving their comfort.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adjustable portal girder tensioning platform, characterized in that, include: The cantilever structure (1) includes a plurality of first cantilever beams (11), each of the first cantilever beams (11) extending along a first horizontal direction and extending to the outside of the cap beam (100), and the plurality of first cantilever beams (11) are spaced apart along a second horizontal direction on the bottom side of the cap beam (100); The fixed structure (2) includes a plurality of fixed frames (21) spaced apart along the first horizontal direction. Each fixed frame (21) is fitted onto the outside of the cap beam (100) and the cantilever structure (1). The fixed frame (21) includes: Two fixed beams (211) are arranged vertically at intervals on both sides of the cap beam (100), and each fixed beam (211) extends along the second horizontal direction; Two connecting rods (212) are spaced apart on both sides of the cover beam (100) along the second horizontal direction. Each connecting rod (212) extends along the vertical direction. The connecting rods (212) are arbitrarily connected between the two fixed beams (211) along both the second horizontal direction and the vertical direction. The work platform (3) is set on multiple first cantilever beams (11) and is used to support workers; The first horizontal direction is perpendicular to the second horizontal direction.

2. The adjustable portal girder tensioning platform according to claim 1, characterized in that, The fixed beam (211) includes: Two channel steels (2111) are spaced apart along the first horizontal direction, and each of the channel steels (2111) extends along the second horizontal direction. A clearance is provided between the two channel steels (2111) to allow the connecting rod (212) to pass through. Multiple connecting plates (2112) are spaced apart along the second horizontal direction, and each connecting plate (2112) is disposed between two channel steels (2111) for connecting the two channel steels (2111); Fasteners (2121) are threaded through the connecting rod (212), and a fastening hole is opened on one of the channel steels (2111), and the fasteners (2121) are screwed into the fastening holes.

3. The adjustable portal girder tensioning platform according to claim 2, characterized in that, The connecting rod (212) is an angle steel.

4. The adjustable portal girder tensioning platform according to claim 1, characterized in that, The fixed frame (21) further includes a reinforcing component (213), the reinforcing component (213) comprising: Multiple precision-rolled threaded steel bars (2131) are spaced apart on both sides of the cap beam (100) along the second horizontal direction. Each precision-rolled threaded steel bar (2131) extends along the vertical direction, and the two ends of the precision-rolled threaded steel bar (2131) are respectively inserted into the two fixed beams (211). Multiple gaskets (2132), each of the ends of the precision-rolled threaded steel bars (2131) is fitted with one of the gaskets (2132), and the gaskets (2132) abut against the fixed beam (211); Multiple locking elements (2133) are provided, with each of the fine-rolled threaded steel bars (2131) having one of the locking elements (2133) fitted at its end, and the locking element (2133) abutting against the side of the gasket (2132) away from the fixed beam (211).

5. The adjustable portal girder tensioning platform according to claim 1, characterized in that, The working platform (3) includes a support platform (31) and a protective component (32). The support platform (31) is mounted on a plurality of first cantilever beams (11), and the protective component (32) is mounted on the support platform (31).

6. The adjustable portal girder tensioning platform according to claim 5, characterized in that, The support platform (31) includes a support frame (311) and a support plate (312). The support frame (311) is disposed on a plurality of first cantilever beams (11), and the support plate (312) is disposed on the support frame (311).

7. The adjustable portal girder tensioning platform according to claim 6, characterized in that, The support frame (311) includes: Multiple first poles (3111) are spaced apart along the first horizontal direction, each first pole (3111) extends along the second horizontal direction and is erected on multiple first cantilever beams (11); Multiple second poles (3112) are spaced apart along the second horizontal direction, each second pole (3112) extends along the first horizontal direction and rests on multiple first poles (3111); The support plate (312) is disposed on a plurality of second rods (3112).

8. The adjustable portal girder tensioning platform according to claim 5, characterized in that, The protective component (32) includes: Multiple guard rods (321) are spaced apart circumferentially on the support platform (31), and each guard rod (321) extends along the vertical direction; A protective net (322) is installed around the outside of the plurality of protective poles (321).

9. The adjustable portal girder tensioning platform according to claim 8, characterized in that, An entrance / exit is provided on the side of the protective net (322) adjacent to the cover beam (100), and a protective door (3221) is rotatably provided at the entrance / exit.

10. The adjustable portal girder tensioning platform according to any one of claims 1-9, characterized in that, The cantilever structure (1) further includes a plurality of second cantilever beams (12), each of the second cantilever beams (12) extending along the first horizontal direction and extending to the outside of the cap beam (100), and the plurality of second cantilever beams (12) are spaced apart above the cap beam (100) along the second horizontal direction.

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