On-site installation construction platform for large-size steel box arch bridge

Abstract

The utility model provides a large-size steel box arch bridge on-site installation construction platform, which belongs to the field of steel box arch bridge on-site installation construction auxiliary equipment, is arranged on the outer side of the joint of two steel box girders, and comprises an upper end walking channel, an upper end transverse construction frame, a side edge inclined construction frame and a bottom construction platform frame, the upper end transverse scaffold is transversely fixed to the upper end of the steel box girder, the upper end walking channel is arranged in the middle of the upper end transverse scaffold, and the side edge inclined scaffolds are fixedly arranged on the two sides of the steel box girder. The frame type platform is arranged on the outer side of the connecting position of the large-size steel box girder, the size can be designed according to the size of the steel box arch bridge, meanwhile, the side edge inclined construction frame can be spliced according to the size of the steel box arch bridge through a unit splicing structure, later-period disassembly is easy, and the construction efficiency is improved. Welding work and protective layer coating work in the steel box girder splicing process can be met, and the steel box girder splicing device is safe in construction and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the field of on-site installation construction auxiliary equipment for steel box arch bridges, in particular to an on-site installation construction platform for large-size steel box arch bridges. Background Art

[0002] The on-site installation construction platform for steel box arch bridges is a temporary structure built specifically for the construction of steel box arch bridges. Its purpose is to provide workers with a safe and stable working surface to facilitate the lifting, welding, painting and other tasks of bridge components.

[0003] The primary function of the on-site installation platform for steel box arch bridges is to support the installation of bridge components, providing sufficient space and stability for installing large bridge components such as arch ribs and beams. It also ensures worker safety by ensuring the safety of construction workers working at height and reducing the risk of falls. It also assists in construction operations by facilitating various operations required during construction, including welding, cutting, and bolt tightening. It also improves efficiency by optimizing logistics routes and enhancing work efficiency through rational layout and design.

[0004] Currently, on-site installation platforms for steel box arch bridges typically include scaffolding, floating, and suspended platforms. However, these platforms are difficult to meet the requirements for on-site installation of large-scale steel box arch bridges. Therefore, a new on-site installation platform for large-scale steel box arch bridges is needed. Utility Model Content

[0005] The purpose of the utility model is to provide an on-site installation and construction platform for a large-size steel box arch bridge, so as to solve the technical problem that the existing on-site installation and construction platform for steel box arch bridges cannot meet the on-site installation and construction requirements of large-size steel box arch bridges.

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

[0007] A construction platform for on-site installation of a large-size steel box arch bridge, wherein the construction platform is arranged outside the connection of two steel box girders and comprises an upper walking passage, an upper transverse construction frame, a side inclined construction frame and a bottom construction platform frame. The upper transverse construction frame is transversely fixed to the upper end of the steel box girder, the upper walking passage is arranged in the middle of the upper transverse construction frame, the side inclined construction frames are fixed on both sides of the steel box girder, the bottom construction platform frame is fixed and arranged at the bottom of the steel box girder, the upper transverse construction frame is connected to the upper ends of the two side inclined construction frames, and the bottom construction platform frame is connected to the lower ends of the two side inclined construction frames.

[0008] Furthermore, a transition connection frame is provided between the side inclined construction frame and the bottom construction platform frame. The transition connection frame is vertically provided, and the bottom construction platform frame is horizontally provided. The transition connection frame and the side inclined construction frame are detachable.

[0009] Furthermore, the transition connection frame includes a transition frame vertical connecting rod, side cross bars and a transition frame connecting plate. The four transition frame vertical connecting rods are vertically arranged to form a frame structure. The transition frame connecting plate is arranged on the top of the transition frame vertical connecting rod, and the side cross bars are arranged between the two transition frame vertical connecting rods to form a frame structure.

[0010] Furthermore, the lengths of the two inner vertical connecting rods of the transition frame are shorter than the lengths of the two outer vertical connecting rods of the transition frame, and the transition frame connecting plates are arranged obliquely inwardly on the tops of the vertical connecting rods of the transition frame.

[0011] Furthermore, the upper transverse construction frame is composed of several upper transverse construction frame units, which are detachably connected to each other. The upper transverse construction frame units include side frame connecting plates, construction support frames, supporting main poles and bottom foot rods. The four supporting main poles are respectively arranged at the four corners and arranged in parallel to form a frame structure. Construction support frames are arranged at both ends and the middle between the four supporting main poles. The side frame connecting plates are arranged at the ends of the supporting main poles, and the bottom foot rods are arranged across the two supporting main poles at the bottom.

[0012] Furthermore, the bottom construction platform frame includes a bottom plate and side railings, the bottom plate is connected to the bottom of the transition connection frame, and the side railings are arranged on the sides of the bottom plate.

[0013] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0014] The utility model sets a frame-shaped platform on the outside of the connection of the large-sized steel box beam, so that the size can be designed according to the size of the steel box arch bridge. At the same time, the side inclined construction frame can be spliced ​​according to the size of the steel box arch bridge through the unit splicing structure. The later disassembly is also simple, which can meet the welding work and protective layer coating work in the process of splicing the steel box beam, and has the advantages of safe construction and convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the construction platform structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the on-site installation structure of a large-size steel box arch bridge on a construction platform of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the side-inclined construction frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the over-connection frame structure of the utility model.

[0019] In the attached figure, 1-upper walking channel, 2-upper horizontal construction frame, 3-side inclined construction frame, 4-transition connection frame, 5-bottom construction platform frame, 3.1-side frame connecting plate, 3.2-construction support frame, 3.3-support main pole, 3.4-bottom foot pole, 4.1-transition frame vertical connecting rod, 4.2-side horizontal rod, 4.3-transition frame connecting plate, 5.1-bottom plate, 5.2-side railing. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0021] like Figure 1-2 As shown, a large-size steel box arch bridge on-site installation construction platform is arranged on the outside of the connection between two steel box girders, including an upper walking channel 1, an upper transverse construction frame 2, a side inclined construction frame 3 and a bottom construction platform frame 5. The upper transverse construction frame 2 is arranged transversely at the upper end of the steel box girder, the upper walking channel 1 is arranged in the middle of the upper transverse construction frame 2, the side inclined construction frame 3 is arranged on both sides of the steel box girder, and the bottom construction platform frame 5 is arranged at the bottom of the steel box girder. The upper transverse construction frame 2 is connected to the upper ends of the two side inclined construction frames 3, and the bottom construction platform frame 5 is connected to the lower ends of the two side inclined construction frames 3.

[0022] The upper walking passage 1 is mainly a passage left for subsequent people to walk on the upper end of the steel box arch bridge, and is also a passage for people to enter the upper end horizontal construction frame 2.

[0023] The plane formed by the side and upper end of the construction platform is close to a structure perpendicular to the steel box arch bridge, which makes the fixing effect better and can be fixed directly using the upper support.

[0024] In the embodiment of the present invention, an intermediate connection frame 4 is provided between the side tilting construction frame 3 and the bottom construction platform frame 5. The intermediate connection frame 4 is provided vertically, and the bottom construction platform frame 5 is provided horizontally. The intermediate connection frame 4 and the side tilting construction frame 3 are detachable. The intermediate connection frame 4 plays a role of suspension, so that the bottom construction platform frame 5 can maintain a horizontal position.

[0025] In the embodiment of the present utility model, Figure 4As shown, the transition frame 4 includes transition frame vertical connecting rods 4.1, side crossbars 4.2, and transition frame connecting plates 4.3. The four transition frame vertical connecting rods 4.1 are vertically arranged to form a frame structure. The transition frame connecting plates 4.3 are arranged on top of the transition frame vertical connecting rods 4.1. The side crossbars 4.2 are arranged between two transition frame vertical connecting rods 4.1 to form a frame structure. The two inner transition frame vertical connecting rods 4.1 are shorter than the two outer transition frame vertical connecting rods 4.1. The transition frame connecting plates 4.3 are arranged on top of the transition frame vertical connecting rods 4.1 at an angle inward.

[0026] In the embodiment of the present utility model, Figure 3 As shown, the upper transverse construction frame 2 is composed of several upper transverse construction frame units, which are detachably connected to each other. The upper transverse construction frame units include side frame connecting plates 3.1, construction support frames 3.2, support main poles 3.3, and bottom foot rods 3.4. The four support main poles 3.3 are respectively arranged at the four corners and arranged in parallel to form a frame structure. Construction support frames 3.2 are provided at both ends and in the middle between the four support main poles 3.3. The side frame connecting plates 3.1 are provided at the ends of the support main poles 3.3, and the bottom foot rod 3.4 is provided across the two bottom support main poles 3.3. The side frame connecting plates 3.1 can be connected to each other by bolts, enabling rapid installation and removal, and can be adjusted according to size at any time.

[0027] In the embodiment of the present utility model, Figure 1 As shown, the bottom construction platform frame 5 includes a base plate 5.1 and side railings 5.2. The base plate 5.1 is connected to the bottom of the transition connection frame 4, and the side railings 5.2 are arranged on the sides of the base plate 5.1. The bottom construction platform frame 5 serves as the construction platform at the bottom connection of the steel box arch bridge. To ensure more stable load bearing and smooth construction for workers, the bottom construction platform frame 5 is configured as a horizontal platform structure.

[0028] The side-inclined construction frame is a structure that is spliced ​​together by units. It can be spliced ​​according to the size of the steel box arch bridge. It is also easy to disassemble later and can meet the welding work and protective layer coating work during the splicing process of the steel box beam.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A large-scale steel box arch bridge on-site installation construction platform, characterized by: The construction platform is arranged outside the connection of the two steel box beams, and comprises an upper end walking passage (1), an upper end transverse construction frame (2), a side inclined construction frame (3) and a bottom construction platform frame (5); the upper end transverse construction frame (2) is arranged transversely at the upper end of the steel box beam, the upper end walking passage (1) is arranged in the middle of the upper end transverse construction frame (2), the side inclined construction frames (3) are arranged on both sides of the steel box beam, and the bottom construction platform frame (5) is arranged at the bottom of the steel box beam; the upper end transverse construction frame (2) is connected to the upper ends of the two side inclined construction frames (3), and the bottom construction platform frame (5) is connected to the lower ends of the two side inclined construction frames (3).

2. The on-site installation construction platform for a large-size steel box arch bridge according to claim 1 is characterized by: A transition connection frame (4) is provided between the side inclined construction frame (3) and the bottom construction platform frame (5); the transition connection frame (4) is provided vertically, and the bottom construction platform frame (5) is provided horizontally; the transition connection frame (4) and the side inclined construction frame (3) are detachably provided.

3. The on-site installation construction platform for a large-scale steel box arch bridge according to claim 2 is characterized by: The transition connection frame (4) comprises a transition frame vertical connection rod (4.1), a side cross bar (4.2) and a transition frame connection plate (4.3). Four transition frame vertical connection rods (4.1) are vertically arranged to form a frame structure. The transition frame connection plate (4.3) is arranged on the top of the transition frame vertical connection rod (4.1). The side cross bar (4.2) is arranged between two transition frame vertical connection rods (4.1) to form a frame structure.

4. The on-site installation construction platform for a large-scale steel box arch bridge according to claim 3 is characterized by: The lengths of the two inner transition frame vertical connecting rods (4.1) are shorter than the lengths of the two outer transition frame vertical connecting rods (4.1), and the transition frame connecting plates (4.3) are arranged in an inwardly inclined manner on the tops of the transition frame vertical connecting rods (4.1).

5. The on-site installation construction platform for a large-size steel box arch bridge according to claim 1 is characterized by: The upper transverse construction frame (2) is composed of a plurality of upper transverse construction frame units, which are detachably connected to each other. The upper transverse construction frame units include side frame connecting plates (3.1), construction support frames (3.2), supporting main poles (3.3) and bottom foot rods (3.4). The four supporting main poles (3.3) are respectively arranged at four corners and arranged in parallel to form a frame structure. Construction support frames (3.2) are arranged at both ends and in the middle between the four supporting main poles (3.3). The side frame connecting plates (3.1) are arranged at the ends of the supporting main poles (3.3). The bottom foot rod (3.4) spans between the two supporting main poles (3.3) arranged at the bottom.

6. The on-site installation construction platform for a large-scale steel box arch bridge according to claim 2 is characterized by: The bottom construction platform frame (5) comprises a bottom plate (5.1) and side railings (5.2). The bottom plate (5.1) is connected to the bottom of the transition connection frame (4), and the side railings (5.2) are arranged on the sides of the bottom plate (5.1).

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