CN218638881U - Welding construction operation platform for cantilever arm of steel box girder - Google Patents

Abstract

The utility model discloses a steel case roof beam outrigger welding construction work platform, include from last horizontal roof beam structure, vertical roof beam structure and the operation platform that sets gradually extremely down, horizontal roof beam structure and operation platform pass through vertical roof beam structure fixed connection, and horizontal roof beam structure one side bottom surface is provided with walking assembly, and walking assembly sets up in steel case roof beam outrigger top surface. The utility model discloses operation platform's horizontal roof beam structure and operation platform pass through vertical roof beam structure and connect, form the integral type structure, and hang through the horizontal roof beam and locate on the steel box girder cantilever arm, make its operation platform hang in the below of steel box girder cantilever arm, steel box girder box room avris, do not set up the structure of elevating, structural integrity is strong, the risk that the high altitude topples has been reduced, and be provided with the walking subassembly, can make operation platform along the direction back-and-forth movement that the bridge was laid on the cantilever arm of steel box girder, construction operation is more convenient, the construction time is shortened, construction cost is reduced.

Description

Welding construction operation platform for cantilever arm of steel box girder

Technical Field

The application relates to the field of bridge construction, in particular to a welding construction operation platform for cantilever arms of steel box girders.

Background

With the development of science and technology, the progress of times and the continuous development of urbanization process, large bridges in China are more and more constructed, but in the construction process of the large bridges, certain potential safety hazards are often formed due to the fact that steel box girder cantilever arms are arranged near a railway business line, relevant measures are needed to be taken for railway safety protection treatment, and at present, a mode that supports are erected from the ground to the positions below the cantilever arms to form a construction operation platform is generally adopted, so that the safe operation of a railway line in the welding process of the steel box girder cantilever arms is guaranteed.

However, the existing form of erecting the support to form the construction operation platform has the following defects: because the foundation needs to be treated by setting up the support, the railway slope is easy to be disturbed during the treatment of the foundation, and the basic operation of the railway is influenced; the support is usually higher in erection height, is constructed in an assembling mode, is poorer in integrity, has the risk of high-altitude overturning and influences the safe operation of the railway; and the construction time for setting up the support is too long, and the construction cost is high.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model provides a technical problem do: in the welding process of the steel box girder cantilever close to the railway business line, how to design the structure of the construction platform reduces the risk of high-altitude overturning and shortens the construction period and cost.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the utility model provides a steel case roof beam cantilever welding construction work platform, including set up the horizontal roof beam structure on the steel case roof beam cantilever arm, set up operating platform under the steel case roof beam cantilever arm and set up in the vertical roof beam structure of steel case roof beam cantilever arm side, horizontal roof beam structure and operating platform pass through vertical roof beam structure to be connected, are provided with walking assembly under the horizontal roof beam structure.

Preferably, the operating platform comprises an operating platform main beam, a plurality of operating platform stiffening plates arranged on the operating platform main beam, and a springboard arranged on the operating platform stiffening plates.

Preferably, a foot blocking plate is arranged on the operating platform.

Preferably, the horizontal beam frame comprises a horizontal beam frame main beam and a plurality of horizontal beam frame stiffening plates arranged on the horizontal beam frame main beam.

Preferably, the horizontal beam frame is provided with a balancing weight.

Preferably, the material of the balancing weight is a concrete block.

Preferably, the vertical beam frame comprises a main beam frame and a plurality of protective railings arranged on the main beam frame.

Preferably, an upper diagonal bracing reinforcing beam is connected between the horizontal beam frame and the vertical beam frame, and a lower diagonal bracing reinforcing beam is connected between the vertical beam frame and the operating platform.

Preferably, the walking assembly comprises support legs arranged below the horizontal beam frame and rollers arranged below each support leg, and the number of the support legs is at least 4.

Preferably, the supporting leg comprises two oppositely arranged plates, a circular hole is formed in the surface of the lower side of each plate, and the roller is connected between the two circular holes through a bearing rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this novel welding is with operation platform's horizontal roof beam structure and operation platform pass through vertical beam structure and connect, form the integral type structure, and hang through the horizontal roof beam and locate on the steel box girder cantilever arm, make its operation platform hang in the below of steel box girder cantilever arm, steel box girder box room avris, compare with the current form of setting up the higher assembled support of height, do not set up the structure of erectting, and structural integrity is strong, the risk of toppling over at high altitude has been reduced, the safe operation of railway line has been guaranteed.

2. This novel work platform for welding is provided with running gear, can make operation platform follow the direction back-and-forth movement that the bridge laid on the arm of picking of steel case roof beam through running gear, compares with the current support platform that sets up that can not remove, and this novel work platform's construction operation is more convenient to shorten engineering time, reduced construction cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a welding construction platform for a cantilever of a steel box girder according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an operation platform of the steel box girder cantilever welding construction operation platform according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a horizontal beam frame of a welding construction work platform for a cantilever of a steel box beam in an embodiment of the present invention;

fig. 4 is a schematic structural view of a vertical beam frame of the welding construction work platform for the cantilever of the steel box beam in the embodiment of the present invention;

fig. 5 is a schematic structural view of a traveling assembly of the welding construction work platform for the cantilever of the steel box girder according to the embodiment of the present invention;

in the figure: 1-an operation platform; 1 a-operating platform main beam; 1 b-an operation platform stiffening plate; 1 c-springboard; 2-a walking component; 2 a-a roller; 2 b-a leg; 3-a horizontal beam frame; 3 a-a horizontal beam frame main beam; 3 b-horizontal beam frame stiffening plate; 4-a balancing weight; 5-a vertical beam frame; 5 a-a vertical beam frame main beam; 5 b-protective railing; 5 c-upper diagonal bracing reinforcing beam; 5d, lower diagonal bracing reinforcing beams; 6-a foot baffle plate; 7-cantilever arm of steel box girder; 8-steel box girder box chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1, the embodiment of the utility model provides a pair of 7 welding construction work platforms of arm are chosen to steel box girder, including setting up in the horizontal roof beam structure 3 of 7 tops of arm are chosen to the steel box girder, set up in the operating platform 1 of 7 below arms are chosen to the steel box girder and set up in the vertical roof beam structure 5 of 7 sides of arm are chosen to the steel box girder, horizontal roof beam structure 3 and operating platform 1 are connected through vertical roof beam structure 5, and are provided with running gear 2 under the horizontal roof beam structure 3, and running gear 2 supports and holds in 7 top surfaces of arm are chosen to the steel box girder.

The effect that above-mentioned structural design brought is:

1. this novel welding is with operation platform horizontal beam frame 3 and operation platform 1 connect through vertical roof beam structure 5, form the integral type structure, and hang through horizontal beam frame 3 and establish on steel box girder cantilever 7, make its operation platform 1 hang in the below of steel box girder cantilever 7, 8 avris in steel box girder box room, compare with the current form of setting up the higher assembled support of height, do not set up the structure of erectting high, and structural integrity is strong, the risk of toppling in the high altitude has been reduced, the safe operation of railway line has been guaranteed.

2. This novel work platform for welding is provided with walking subassembly 2, can make operation platform 1 follow the direction back-and-forth movement that the bridge laid on the arm of choosing of steel case roof beam through walking subassembly 2, compares with the current support platform that can not remove of setting up, and this novel work platform's construction operation is more convenient to shorten engineering time, reduced construction cost.

Further, as shown in fig. 2, the operating platform 1 includes an operating platform main beam 1a, the operating platform main beam 1a is composed of two parallel and opposite arranged same steel beams, a plurality of operating platform stiffening plates 1b are welded between the two steel beams and located between the two steel beams, a springboard 1c is further laid on the top surface of the operating platform stiffening plate 1b, the operating platform stiffening plate 1b is used for strengthening the rigidity of the main beam and ensuring the stability of a local structure, the springboard 1c is used for standing so as to provide stress support for constructors to perform welding operation, in this embodiment, the platform main beam is made of i-steel, model 10# i-steel is specifically selected, the operating platform stiffening plate 1b is made of channel steel, model 10# channel steel is selected, and the springboard 1c is made of springboard 1c.

Further, as shown in fig. 1, a foot blocking plate 6 is arranged on the top surface of one side of the operating platform 1, and the foot blocking plate 6 is used for preventing related objects from falling off from the platform and preventing people from falling down during construction, so that the construction safety is protected.

Further, as shown in fig. 3, the horizontal beam frame 3 includes a horizontal beam frame main beam 3a, the horizontal beam frame main beam 3a is composed of two parallel and opposite arranged same steel beams, a plurality of horizontal beam frame stiffening plates 3b are welded between the two steel beams, the horizontal beam frame stiffening plates 3b are used for reinforcing the rigidity of the horizontal beam frame main beam 3a and ensuring the stability of a local structure, in this embodiment, the horizontal beam frame main beam 3a selects h-shaped steel, 10# h-shaped steel is selected for use for specific models, channel steel is selected for use for the horizontal beam frame stiffening plates 3b, and 10# channel steel is selected for use for specific models.

Further, as shown in fig. 1, the horizontal beam frame 3 and the top surface of the same side with the walking assembly 2 are provided with a balancing weight 4, specifically, the balancing weight 4 is arranged on the horizontal beam frame stiffening plate 3b and is located between the two steel beams of the main beam 3a of the horizontal beam frame, and the balancing weight 4 is used for balancing the total weight of the vertical beam frame 5 located on the side of the cantilever 7 of the steel box girder and the total weight of the operating platform 1 below, so that the whole operating platform can be stably suspended on the cantilever 7 of the steel box girder.

Further, the material of the balancing weight 4 is selected from concrete blocks, in this embodiment, the weight of the concrete blocks is prefabricated in advance according to the weight of the vertical beam frame 5 and the weight of the operating platform 1, and the concrete blocks are arranged on the horizontal beam frame 3 when the operating platform is installed.

Further, as shown in fig. 4, vertical roof beam structure 5 includes vertical roof beam structure girder 5a, and vertical roof beam structure girder 5a is connected and is fixed in horizontal roof beam structure girder 3a bottom surface and operation platform girder 1a top surface, and vertical roof beam structure girder 5a comprises the same girder steel of two parallel relative settings, and the welding has a plurality of protective barrier 5b between two girder steels, protective barrier 5b is used for fence to protect constructor, prevents that constructor accident from falling down from operation platform 1, in this embodiment, I-steel is chooseed for use to vertical roof beam structure girder 5a, and 10# I-steel is chooseed for use to specific model, and the channel-section steel is chooseed for use to vertical roof beam structure 5 stiffened plate, and 10# channel-section steel is chooseed for use to specific model, and protective barrier 5 b's material is chooseed for use hot rolling ribbed steel (HRB reinforcing bar for short), and 20mm is chooseed for use to the diameter.

Further, as shown in fig. 1, an upper diagonal bracing reinforcing beam 5c is connected between the horizontal beam frame 3 and the vertical beam frame 5, a lower diagonal bracing reinforcing beam 5d is connected between the vertical beam frame 5 and the operating platform 1, specifically, the upper diagonal bracing reinforcing beam 5c is connected and fixed to one side bottom surface of the horizontal beam frame 3 and one side surface of the vertical beam frame 5 close to the steel box girder box chamber 8, the lower diagonal bracing reinforcing beam 5d is connected and fixed to one side surface of the vertical beam frame 5 close to the steel box girder box chamber 8 and one side top surface of the operating platform 1 far away from the foot blocking plate 6, and the upper diagonal bracing reinforcing beam 5c and the lower diagonal bracing reinforcing beam 5d are used for reinforcing the connection stability between the vertical beam frame 5 and the horizontal beam frame 3 as well as the connection stability between the operating platform 1 and the longitudinal load bearing limit of the operating platform 1 and the horizontal beam frame 3.

Further, as shown in fig. 5, the walking assembly 2 includes at least 4 support legs 2b arranged below the horizontal beam frame 3, and a roller 2a is arranged below each support leg 2b, and the arrangement of the roller 2a enables the operation platform to move back and forth on the steel box girder cantilever arm 7 along the bridge laying direction, so that the constructor can conveniently perform continuous welding construction operation.

Further, as shown in fig. 5, the support leg 2b is formed by two steel plates which are oppositely arranged under the horizontal beam frame 3 in parallel, a round hole is formed in the lower side surface of each steel plate, the roller 2a is connected between the two round holes through a bearing rod, in the embodiment, the thickness of each steel plate is 2cm, and the roller 2a is a nylon wheel.

Therefore, the basic principle of the installation and the work of the operation platform of the embodiment of the utility model designed near the railway business line is as follows:

before the welding construction of the steel box girder cantilever arm 7 of the bridge close to the railway business line begins, the novel operation platform is hung on the steel box girder cantilever arm 7 through the walking assembly 2, the operation platform 1 is guaranteed to hover below the steel box girder cantilever arm 7 and on the lateral side of a steel box girder box body, and the balancing weight 4 is placed on the horizontal beam frame stiffening plate 3b to ensure that the operation platform can stably hover on the steel box girder cantilever arm 7.

When the welding construction of the cantilever arm 7 of the steel box girder is carried out, a constructor stands on the springboard 1c of the operation platform 1 to carry out welding construction operation, and after the welding operation within the hovering range is finished, the operation platform is transferred to move to the next welding area along the laying direction of the bridge through the roller 2a of the walking assembly 2 to carry out the welding construction again, and the steps are repeated in this way to finish the welding construction engineering of the cantilever arm 7 of the steel box girder of the whole bridge; and the operation platform 6 and the protection railing 5b that set up on the operation platform can protect welding with relevant device and constructor can not be because of unexpected drop operation platform 1, protection device and personal safety.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely exemplary embodiments of the present application and are intended to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a steel case roof beam outrigger welding construction work platform which characterized in that: including setting up horizontal roof beam structure (3) on steel case roof beam outrigger (7), setting up operation platform (1) under steel case roof beam outrigger (7) and setting up in vertical roof beam structure (5) of steel case roof beam outrigger (7) side, horizontal roof beam structure (3) and operation platform (1) are connected through vertical roof beam structure (5), are provided with walking subassembly (2) under horizontal roof beam structure (3).

2. The steel box girder cantilever arm welding construction work platform of claim 1, characterized in that: the operation platform (1) comprises an operation platform main beam (1 a), a plurality of operation platform stiffening plates (1 b) arranged on the platform main beam (1 a) and a springboard (1 c) arranged on the operation platform stiffening plates (1 b).

3. The welding construction platform for the cantilever of the steel box girder as recited in claim 2, wherein: a foot blocking plate (6) is arranged on the operating platform (1).

4. The welding construction platform for the cantilever of the steel box girder as recited in claim 1, wherein: the horizontal beam frame (3) comprises a horizontal beam frame main beam (3 a) and a plurality of horizontal beam frame stiffening plates (3 b) arranged on the horizontal beam frame main beam (3 a).

5. The welding construction platform for the cantilever of the steel box girder as recited in claim 4, wherein: and a balancing weight (4) is arranged on the horizontal beam frame (3).

6. The steel box girder cantilever arm welding construction work platform of claim 5, characterized in that: the material of the balancing weight (4) is a concrete block.

7. The welding construction platform for the cantilever of the steel box girder as recited in claim 1, wherein: the vertical beam frame (5) comprises a vertical beam frame main beam (5 a) and a plurality of protective railings (5 b) arranged on the vertical beam frame main beam (5 a).

8. The steel box girder cantilever arm welding construction work platform of claim 1, characterized in that: an upper diagonal bracing reinforcing beam (5 c) is connected between the horizontal beam frame (3) and the vertical beam frame (5), and a lower diagonal bracing reinforcing beam (5 d) is connected between the vertical beam frame (5) and the operating platform (1).

9. The welding construction platform for the cantilever of the steel box girder as recited in claim 1, wherein: the walking assembly (2) comprises supporting legs (2 b) arranged below the horizontal beam frame (3) and rollers (2 a) arranged below each supporting leg (2 b), and the number of the supporting legs (2 b) is at least 4.

10. The welding construction platform for the cantilever of the steel box girder as recited in claim 9, wherein: the supporting legs (2 b) comprise two plates which are arranged oppositely, a round hole is formed in the surface of the lower side of each plate, and the roller (2 a) is connected between the two round holes through a bearing rod.

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