CN222771340U - Steel box girder construction protection shed - Google Patents
Steel box girder construction protection shed Download PDFInfo
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- CN222771340U CN222771340U CN202421517214.1U CN202421517214U CN222771340U CN 222771340 U CN222771340 U CN 222771340U CN 202421517214 U CN202421517214 U CN 202421517214U CN 222771340 U CN222771340 U CN 222771340U
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- box girder
- steel box
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- truss
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Abstract
本实用新型公开了一种钢箱梁施工防护棚，包括钢箱梁施工防护棚，所述钢箱梁施工防护棚包括防护平台、悬吊件和防护栏；所述悬吊件将防护平台吊装在钢箱梁的底面，所述防护栏装配在防护平台顶面的边缘，以使得防护栏高于防护平台形成对防护平台的隔挡；所述悬吊件的顶部向上凸出于钢箱梁的顶面形成防护段，在钢箱梁延伸方向相邻的防护段之间通过横隔连接，以使得横隔与防护段形成位于钢箱梁顶面的防护构造；能够弥补梁底作业难以施工的需求，并保证梁底作业的安全性。
The utility model discloses a steel box girder construction protection shed, comprising a steel box girder construction protection shed, the steel box girder construction protection shed comprising a protection platform, a suspension member and a protection rail; the suspension member suspends the protection platform on the bottom surface of the steel box girder, the protection rail is assembled on the edge of the top surface of the protection platform, so that the protection rail is higher than the protection platform to form a partition for the protection platform; the top of the suspension member protrudes upward from the top surface of the steel box girder to form a protection section, and the adjacent protection sections in the extension direction of the steel box girder are connected by a transverse partition, so that the transverse partition and the protection section form a protection structure located on the top surface of the steel box girder; the demand for difficult construction of beam bottom operations can be compensated, and the safety of beam bottom operations can be ensured.
Description
Technical Field
The utility model relates to the field of steel box girder bottom construction, in particular to a steel box girder construction protection shed.
Background
With the development of urban construction, the steel box girder bridge is increasingly widely used. In the construction of main cities, particularly at the junction of a ramp between a main road and a secondary road, a steel box girder bridge is often adopted as a transition section for connection, and the bridge structure is mostly a special-shaped box structure, namely a big-end-variable cross section structure form. However, after the urban overhead steel box girder bridge is installed in place, the problem of how to perform girder bottom operation becomes a technical problem which is expected to be solved by the person skilled in the art.
Therefore, a steel box girder construction protection shed is needed, which can make up the requirement that the girder bottom operation is difficult to construct and ensure the safety of the girder bottom operation.
Disclosure of utility model
In view of the above, the utility model aims to overcome the defects in the prior art, provide a steel box girder construction protection shed, and can make up the requirement that the girder bottom operation is difficult to construct and ensure the safety of the girder bottom operation.
The steel box girder construction protection shed comprises a steel box girder construction protection shed, wherein the steel box girder construction protection shed comprises a protection platform, a suspension piece and a protection fence;
The protective rail is assembled at the edge of the top surface of the protective platform, so that the protective rail is higher than the protective platform to form a barrier for the protective platform;
The top of the suspension piece protrudes upwards from the top surface of the steel box girder to form a protection section, and the adjacent protection sections in the extending direction of the steel box girder are connected through a transverse diaphragm, so that the transverse diaphragm and the protection section form a protection structure positioned on the top surface of the steel box girder.
Further, the protection platform comprises a bottom plate and a protection layer arranged on the top surface of the bottom plate, and the protection layer comprises fireproof asbestos.
Further, the protection platform further comprises a truss for supporting the bottom plate, the truss is fixed with the bottom plate through a truss connecting assembly, and the truss is in a plurality of groups.
Further, the truss is a sheet truss, and the truss connecting assembly comprises angle steel, truss connecting steel plates and connecting bolts I;
The angle steel is fixed by a connected steel plate between adjacent sheet trusses, and the truss connection steel plate spans the upper chord members of the sheet trusses and connects the angle steel positioned on two sides of the upper chord members through connecting bolts I.
The hanging pieces are arranged at the top of the truss and are fixed by the hanging piece connecting assembly, the hanging pieces which are consistent in number with the truss and are assembled in a one-to-one correspondence mode are a group of hanging rows, and the hanging rows are two groups arranged in the width direction of the steel box girder.
Further, the hanging piece connecting component comprises an inclined stay bar, a hanging connecting steel plate and a connecting bolt II;
The diagonal brace connects the suspension piece and the truss upper chord, and a triangle structure is formed by the diagonal brace, the suspension piece and the truss upper chord.
Further, the bottom of the suspension piece is connected with the upper chord through a suspension connection steel plate, and the connection surface of the suspension connection steel plate, which spans the upper chord, and the suspension piece is fixed through a connection bolt II.
Further, the suspension piece is fixed at the inner side of the periphery of the bottom plate along the width direction of the steel box girder, the guard rail is assembled at the periphery of the bottom plate along the width direction of the steel box girder, and a channel along the length direction of the steel box girder is formed between the guard rail and the suspension piece.
Further, a hanging grabbing plate is fixed at the upper position of the middle of the hanging piece through a bolt III, and the hanging piece is hung on the steel box girder through the hanging grabbing plate.
The construction method for the steel box girder construction protection shed has the beneficial effects that the construction protection shed is used for bridge construction crossing existing vehicles or pedestrian traffic lines, the dilemma that the steel box girder cannot be subjected to girder bottom operation after being installed in a narrow-space limited area is effectively solved, and the construction protection shed is suspended below the steel box girder bridge deck because the construction protection shed is suspended on the steel box girder bridge deck, so that the normal traffic of vehicles or pedestrians under the bridge is not influenced, the bridge bottom operation such as under-bridge welding, bolt connection and anti-corrosion coating can be performed along with the installation progress of the steel box girder bridge, and the construction protection shed for the suspended steel box girder has the advantages of stable and reliable structure, convenience in assembly and disassembly, and good economic effect.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the utility model in the direction A-A of FIG. 1;
FIG. 3 is a schematic view of the bottom structure of the present utility model;
fig. 4 is a schematic structural view of the truss connection steel plate connection angle steel of the present utility model.
Detailed Description
Fig. 1 is a schematic view of the construction of the present utility model, and as shown in the drawing, the steel box girder construction protection shed in the present embodiment includes a protection platform, a suspension member 5 and a protection fence 8;
The suspension piece 5 is used for suspending the protection platform on the bottom surface of the steel box girder 001, the space between the top surface of the protection platform and the bottom surface of the steel box girder forms a construction space, and the top surface of the protection platform is used as a construction site;
In the construction management process of the urban overhead steel box girder bridge, the safety belt bolting protection measures are required for always strong overhead operation, a reliable operation platform and a critical operation, but the conditions cannot be met in the construction site due to the fact that the site or the environmental condition is limited, the construction is generally lifting or hanging, and personnel move frequently in the construction process, so that operators can not carry safety belts on the sides and can not be correctly fixed for use, and further extremely high safety risks are generated.
Therefore, in the scheme, the guard rail 8 is assembled at the edge of the top surface of the protection platform, so that the guard rail 8 is higher than the protection platform to form a barrier for the protection platform, and the guard rail 8 is provided with a safety belt hanging rod or rope with a through length in the length direction of the steel box girder 001, so that the safety of high-altitude operation is improved;
The construction method for constructing the protection shed by using the suspended steel box girder is applied to bridge construction crossing existing vehicles or pedestrian traffic lines, effectively solves the dilemma that the steel box girder 001 in a narrow-space limited area cannot be subjected to girder bottom operation after being installed, and can be used for carrying out bridge bottom operation such as under-bridge welding, bolting and anti-corrosion coating along with the installation progress of a steel box girder 001 bridge because the suspended steel box girder is hung on a steel box girder 001 bridge deck, is convenient to disassemble and assemble, has good economic effect, and can solve the problem of construction operation platform and the problem of bolting safety belts for edge operation.
The method also comprises the following construction steps:
S1, abutting two adjacent steel box girders 001 to finish the abutting construction;
s2, assembling a steel box girder on the ground to construct a protective shed;
S3, construction protection for hoisting steel box girders the shed is protected to the bottom surface of the steel box girder;
S4, hoisting the steel box girder construction protection shed on the steel box girder 001;
s5, operating the bottom surface of the steel box girder;
s6, assembling the next section of steel box girder 001 on the previous section of steel box girder 001;
S7, moving a steel box girder construction protection shed to a position to be constructed of the steel box girder 001;
s8, operating the bottom surface of the steel box girder;
s9, repeating the steps S6-S8 until the construction of the overhead steel box girder is completed;
S10, removing the steel box girder construction protection shed.
By adopting the mode of gradually assembling the steel box girder 001, the structural reliability of the steel box girder 001 bridge body can be improved, the condition that the end node structure of a long cantilever is unstable is avoided, along with the assembly of the steel box girder 001 bridge body, the auxiliary construction of the bottom of the steel box girder 001 is also completed, the construction time is greatly saved, the construction period is shortened, the scheme is also suitable for the construction of the bottom surface of a small-span steel box girder 001 bridge, namely, the steel box girder 001 is integrally assembled in the butt joint way in the extending direction, and the steel box girder construction protection shed of the scheme is uniformly arranged, so that the construction of the bottom surface of the steel box girder can be met, the ground traffic is not influenced, and the space utilization rate is high;
Of course, when the bottom surface of the variable cross-section steel box girder is constructed, under the condition of small variable cross-section width, the hanging component hung on the 001 bridge deck of the steel box girder can be prolonged, under the condition of large variable cross-section width, as the scheme belongs to an assembled structure, the bottom protection platform is increased or reduced to meet the construction standard of the bottom surface of the steel box girder, the structural reliability of the construction protection shed for hoisting the steel box girder is improved, and the operation safety of workers is improved.
In this embodiment, the protection platform includes bottom plate 1 and the inoxidizing coating that sets up at bottom plate 1 top surface, bottom plate 1 includes the plank, possesses the material light, does benefit to the advantage of construction, the inoxidizing coating includes fire prevention asbestos, promotes the construction security, and especially the dropping of solder can not destroy the protection platform, ensures that the operating personnel walks and prevents that welding spatter etc. from dropping and hurting the people, and the construction security is guaranteed, and it is formed that bottom plate 1 and inoxidizing coating are the polymerization of segmentation in this scheme of understanding, do benefit to the transportation and install and remove, accord with the portability of assembled construction.
In this embodiment, the protection platform further includes a truss 2 supporting the bottom plate 1, where the bottom plate 1 covers the truss 2, the truss 2 is fixed to the bottom plate 1 by a truss 2 connection assembly, and the truss 2 is a plurality of groups;
The truss 2 coupling assembling includes angle steel 3, truss connection steel sheet 4 and connecting bolt I, the angle steel 3 is located being fixed by the connecting steel sheet between the adjacent sheet truss 2, the last chord member that truss connection steel sheet 4 spanned sheet truss 2 will be located the angle steel 3 of upper chord member both sides through connecting bolt I. This scheme is through bolted connection's mode with truss 2 and protection platform assembly formation whole, more does benefit to assembly type construction and transportation storage etc. and still includes angle steel 3 in the truss 2 coupling assembling to promote adjacent truss 2's connection reliability, satisfy the support demand to bottom plate 1, promote the construction security.
In the embodiment, the hanging pieces 5 are positioned at the top of the truss 2 and fixed by the hanging piece connecting component, the hanging pieces 5 which are consistent in number with the truss 2 and are assembled in a one-to-one correspondence manner are a group of hanging rows, and the two groups of hanging rows are arranged in the width direction of the steel box girder 001;
More specifically, the hanger connecting component comprises an inclined stay bar 6, a suspension connecting steel plate and a connecting bolt II;
The diagonal brace 6 connects the suspension member 5 and the upper chord member of the truss 2 through the connecting bolt IV, a triangle structure is formed by surrounding among the diagonal brace 6, the suspension member 5 and the upper chord member of the truss 2, the structural stability is higher, the bottom of the suspension member 5 is connected with the upper chord member through a suspension connecting steel plate, the joint surface of the suspension connecting steel plate, which spans the upper chord member, and the suspension member 5 is fixed through the connecting bolt II, the structure of the suspension connecting steel plate is consistent with the structure of the truss connecting steel plate 4 in fig. 4, only the connecting positions are different, and the bolt assembly makes the structure convenient to disassemble and assemble.
In this embodiment, in the width direction of the steel box girder 001, the suspension 5 is located inside the protection platform, further, the suspension 5 is fixed inside the periphery of the bottom plate 1 along the width direction of the steel box girder 001, the guard rail 8 is assembled on the periphery of the bottom plate 1 along the width direction of the steel box girder 001, and a channel along the length direction of the steel box girder 001 is formed between the guard rail 8 and the suspension 5. The guard rail 8 comprises a guard rail body and a safety rope fixed at the top of the guard rail body, the safety rope is longer in the length direction of the steel box girder 001, a closer safety belt hanging position is provided for the protection platform, and construction safety is improved.
In this embodiment, the hanging plate 7 is fixed at a position above the middle of the hanging piece 5 by the bolt III, the hanging piece 5 is hung on the steel box girder 001 by the hanging plate 7, the hanging plate 7 in this embodiment is a transverse plate perpendicular to the hanging piece 5, and the hanging position can be structurally reinforced during practical construction, so that the hanging reliability is improved, and the hanging plate 7 connected by the bolt also has the characteristic of convenient disassembly and assembly.
In this embodiment, the top of the suspension member 5 protrudes upwards from the top surface of the steel box girder 001 to form a protection section 51, and the protection sections 51 adjacent to each other in the extending direction of the steel box girder 001 are connected by a transverse partition, so that the transverse partition and the protection sections 51 form a protection structure located on the top surface of the steel box girder 001, and the protection structure further comprises a safety rope fixed on the top of the protection section 51, wherein the safety rope is long in the length direction of the steel box girder 001, provides a relatively close safety belt hanging position for the steel box girder 001, and improves construction safety.
The scheme has the advantages that the through length hanging positions for assembling the safety belt are formed in the top and the bottom of the steel box girder 001, the construction safety is better, the omnibearing construction of the steel box girder 001 is facilitated, the construction efficiency is improved, the application range of the scheme is wider, the assembly structure is simple, the stability and the reliability are high, the economical efficiency effect is good, the advantage of light construction is achieved, the construction is convenient, and the construction safety is guaranteed.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. The steel box girder construction protection shed is characterized by comprising a steel box girder construction protection shed, wherein the steel box girder construction protection shed comprises a protection platform, a suspension piece and a protection fence;
The protective rail is assembled at the edge of the top surface of the protective platform, so that the protective rail is higher than the protective platform to form a barrier for the protective platform;
The top of the suspension piece protrudes upwards from the top surface of the steel box girder to form a protection section, and the adjacent protection sections in the extending direction of the steel box girder are connected through a transverse diaphragm, so that the transverse diaphragm and the protection section form a protection structure positioned on the top surface of the steel box girder.
2. The steel box girder construction protection shed as claimed in claim 1, wherein the protection platform comprises a bottom plate and a protection layer arranged on the top surface of the bottom plate, and the protection layer comprises fireproof asbestos.
3. The steel box girder construction protection shed as in claim 2, wherein the protection platform further comprises trusses supporting the bottom plate, the trusses are fixed with the bottom plate through truss connection assemblies, and the trusses are in a plurality of groups.
4. The steel box girder construction protection shed as claimed in claim 3, wherein the truss is a sheet truss, and the truss connection assembly comprises angle steel, truss connection steel plates and connection bolts I;
The angle steel is fixed by a connected steel plate between adjacent sheet trusses, and the truss connection steel plate spans the upper chord members of the sheet trusses and connects the angle steel positioned on two sides of the upper chord members through connecting bolts I.
5. The steel box girder construction protection shed as claimed in claim 3, wherein the hanging pieces are positioned at the top of the truss and are fixed by the hanging piece connecting assembly, the hanging pieces which are consistent in number and are assembled in a one-to-one correspondence relationship with the truss are a group of hanging rows, and the hanging rows are two groups arranged in the width direction of the steel box girder.
6. The steel box girder construction protection shed as claimed in claim 5, wherein the hanging piece connecting component comprises an inclined strut, a hanging connecting steel plate and a connecting bolt II;
The diagonal brace connects the suspension piece and the truss upper chord, and a triangle structure is formed by the diagonal brace, the suspension piece and the truss upper chord.
7. The steel box girder construction protection shed as claimed in claim 5, wherein the bottom of the suspension member is connected with the upper chord member through a suspension connection steel plate, and the connection surface of the suspension connection steel plate, which spans the upper chord member, is fixed with the suspension member through a connection bolt II.
8. The steel box girder construction protection shed as claimed in claim 2, wherein the suspension members are fixed inside the circumference of the bottom plate in the width direction of the steel box girder, the guard rail is assembled on the circumference of the bottom plate in the width direction of the steel box girder, and a passage in the length direction of the steel box girder is formed between the guard rail and the suspension members.
9. The steel box girder construction protection shed as claimed in claim 1, wherein a hanging plate is fixed at an upper position of the middle part of the hanging piece through a bolt III, and the hanging piece is hung on the steel box girder through the hanging plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421517214.1U CN222771340U (en) | 2024-06-29 | 2024-06-29 | Steel box girder construction protection shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421517214.1U CN222771340U (en) | 2024-06-29 | 2024-06-29 | Steel box girder construction protection shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222771340U true CN222771340U (en) | 2025-04-18 |
Family
ID=95347457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421517214.1U Active CN222771340U (en) | 2024-06-29 | 2024-06-29 | Steel box girder construction protection shed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222771340U (en) |
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2024
- 2024-06-29 CN CN202421517214.1U patent/CN222771340U/en active Active
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