U-shaped suspension operation hanger under steel box girder wing plate

Abstract

The utility model discloses a U-shaped suspension operation hanging rack under a steel box girder wing plate, which comprises a supporting upright post, the supporting upright post is connected with a lower longitudinal beam, a short longitudinal beam, an upper longitudinal beam and a cross beam, and inclined struts are connected between the upper longitudinal beam and the supporting upright post and between the lower longitudinal beam and the supporting upright post; the lower longitudinal beam and the short longitudinal beam are connected with the lower diaphragm, the upper longitudinal beam is connected with the diaphragm and the counterweight area, and the lower diaphragm is connected with the steel plate; crawling ladders are connected between the cross beams and the steel plates, protective fences are connected to the lower longitudinal beams, protective stand columns provided with protective nets are connected to the short longitudinal beams, and pulleys are arranged at the bottoms of the upper longitudinal beams. The device is simple and reasonable in structure and firm in construction, safety of suspended operation is guaranteed, potential safety hazards caused by falling of materials are prevented, construction cost is remarkably saved, working efficiency is improved, waste gas emission is reduced, and the energy-saving and environment-friendly effects are achieved; and meanwhile, the construction site does not need to be occupied, and the effects of ensuring construction safety and saving land resources are achieved.

Description

Technical Field

[0001] This utility model relates to a U-shaped suspended working bracket under the wing plate of a steel box girder, belonging to the field of bridge construction technology. Background Technology

[0002] Currently, infrastructure construction is being strengthened across my country, with highways, urban roads, and bridges experiencing rapid development, particularly bridge engineering. As building materials, machinery, theoretical design, and construction technologies mature, and with the needs of regional development, an increasing number of new urban bridges are crossing existing roads or existing bridges. To minimize disruption to existing traffic and ensure unobstructed views, large-span, lightweight steel box girder structures are being used at most intersections. Traffic safety and work at heights during road crossing construction are crucial aspects of safety management.

[0003] After the steel box girder is hoisted in sections, subsequent processes such as welding and anti-corrosion coating still need to be completed below the flanges. Since there is no direct standing surface, this is considered suspended work. Typically, a boom lift or lifting platform is erected under the bridge to provide a standing surface for workers. However, boom lifts and lifting platforms are greatly affected by the site conditions, requiring constant movement during construction, resulting in low efficiency. Furthermore, construction obstructs traffic lanes, materials are prone to falling, affecting vehicle passage and posing significant safety hazards. Additionally, these equipment consume a lot of energy, failing to meet the requirements for safe and civilized construction. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a U-shaped suspended work bracket under the wing plate of a steel box girder.

[0005] The technical solution provided by this utility model is as follows: A U-shaped suspended work rack under the wing plate of a steel box girder, characterized in that it includes two supporting columns, each supporting column having a lower longitudinal beam and a short longitudinal beam connected to its bottom two sides respectively, and an upper longitudinal beam connected to one side of the upper part of each supporting column. Diagonal braces are connected between the upper longitudinal beam and the supporting column, and between the lower longitudinal beam and the supporting column. A crossbeam is connected between the upper parts of the two supporting columns, several lower transverse partitions are connected between the two lower longitudinal beams, a lower transverse partition is connected between the outer ends of the two short longitudinal beams, a transverse partition is connected between the middle parts of the two upper longitudinal beams, a counterweight area is connected between the outer ends of the two upper longitudinal beams, and steel plates are connected to both the upper and lower sides of the lower transverse partitions. A ladder is connected between the crossbeam and the upper steel plate, a protective fence is connected to the lower longitudinal beam, a protective column is connected to the short longitudinal beam, a protective net is installed on the protective column, and pulleys are installed at the bottom of the upper longitudinal beam.

[0006] Furthermore, the feature is that each of the outer ends, middle sections, and inner ends of the lower longitudinal beams is connected by a lower transverse partition.

[0007] Furthermore, the lower longitudinal beam is 2m long, the short longitudinal beam is 0.8m long, and the upper longitudinal beam is 2.2m long. The upper longitudinal beam, lower longitudinal beam, and short longitudinal beam are all made of I-beams of model 25a. The thickness of the lower diaphragm and the diaphragm is 6mm, and the thickness of the steel plate is 8mm.

[0008] Furthermore, the counterweight area is composed of a base plate, two long side plates, and two short side plates connected together, and the thickness of the base plate is 6mm.

[0009] The beneficial effects of this utility model are as follows: This utility model includes two supporting columns, two lower longitudinal beams, two short longitudinal beams, two upper longitudinal beams, four diagonal braces, a crossbeam, a lower transverse partition, a transverse partition, a counterweight area, a working platform formed by steel plates, a ladder, a protective fence, protective columns, a protective net, pulleys, etc. The lower longitudinal beams, supporting columns, and upper longitudinal beams form two U-shaped structural systems, which are connected by the crossbeams and transverse partitions. A load is applied in the counterweight area, and the utility model is fixed to the steel box girder using the lever principle. The pulleys allow it to move on the steel box girder. This utility model has a simple structure, reasonable design, and solid construction, providing construction workers with a safe, solid, and lightweight mobile working platform. It can ensure the safety of suspended operations, prevent materials from falling and causing safety hazards to traffic under the bridge, and at the same time, it can significantly reduce the waste of machine shifts, significantly save construction costs, and improve work efficiency. The application of this utility model replaces ground machinery such as articulated boom trucks and lifting platforms, reducing exhaust emissions and achieving energy conservation and environmental protection. It has less impact on traffic under the bridge and does not require the occupation of construction sites, thus ensuring construction safety and saving land resources. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 The front view;

[0012] Figure 3 for Figure 1 Side view;

[0013] Figure 4 for Figure 1 Top view;

[0014] Figure 5 for Figure 3 AA section view;

[0015] Figure 6 This is a schematic diagram of the counterweight area structure of this utility model;

[0016] Figure 7 This is a schematic diagram of the usage state of this utility model.

[0017] In the diagram: 1. Upper longitudinal beam, 2. Counterweight area, 3. Diagonal brace, 4. Support column, 5. Protective net, 6. Bolt, 7. Protective fence, 8. Ladder, 9. Lower transverse partition, 10. Steel plate, 11. Lower longitudinal beam, 12. Short longitudinal beam, 13. Crossbeam, 14. Base plate, 15. Long side plate, 16. Short side plate, 17. Protective column, 18. Pulley, 19. Transverse partition. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings:

[0019] like Figures 1-6 As shown, a U-shaped suspended work scaffold under the wing plate of a steel box girder includes two supporting columns 4. The supporting columns 4 are vertical supports made of I-beams of type 25a. A 2m long lower longitudinal beam 11 is welded to one side of the bottom of each supporting column 4, and a 0.8m long short longitudinal beam 12 is welded to the other side of the bottom of each supporting column 4. An upper longitudinal beam 1 of 2.2m long is welded to one side of the upper part of each supporting column 4. The upper longitudinal beam 1, lower longitudinal beam 11, and short longitudinal beam 12 are all made of I-beams of type 25a. Diagonal braces 3 are connected to the upper longitudinal beam 1 and the supporting column 4, and to the lower longitudinal beam 11 and the supporting column 4, by bolts 6. A crossbeam 13, made of I-beams of type 22b, is welded between the upper parts of the two supporting columns 4. Three lower transverse diaphragms 9 are welded between the two lower longitudinal beams 11, one between the outer ends, one between the middle, and one between the inner ends; one lower transverse diaphragm 9 is welded between the outer ends of the two short longitudinal beams 12. The lower transverse diaphragms 9 are made of 6mm thick steel plates. One transverse diaphragm 19 is welded between the middle of the two upper longitudinal beams 1. The transverse diaphragm 19 is made of 6mm thick steel plates. A counterweight area 2 is welded between the outer ends of the two upper longitudinal beams 1. The counterweight area 2 is constructed by welding a base plate 14, two long side plates 15, and two short side plates 16. The base plate 14 is made of 6mm thick steel plates. A steel plate 10 with a thickness of 8mm is welded to both the upper and lower sides of the lower transverse diaphragm 9, forming a working platform. A ladder 8 is welded between the crossbeam 13 and the upper steel plate 10. The ladder 8 is made of multiple 6mm thick steel plates connected together. A protective fence 7 is welded onto the lower longitudinal beam 11. The protective fence 7 is constructed by connecting aluminum alloy poles with a thickness of 4mm. A protective post 17 is welded onto the short longitudinal beam 12. The protective post 17 is made of aluminum alloy pole with a thickness of 4mm, and a protective net 5 is installed on the protective post 17. The protective net 5 is made of wire mesh. A pulley 18 is installed at the bottom of the upper longitudinal beam 1.

[0020] like Figure 7As shown, in use, a truck crane is used to lift the present invention onto the steel box girder bridge deck. The pulley 18 is in direct contact with the bridge deck. A counterweight is placed in the counterweight area 2. Workers then use the ladder 8 to access the work platform formed by the steel plate 10 from the bridge deck to perform construction work. After the work is completed, the workers return to the bridge deck via the ladder 8, remove the counterweight from the counterweight area 2, and use the pulley 18 to move to the next work area on the bridge deck. After all the work is completed, the present invention is removed using a truck crane.

[0021] It should be understood that any parts not described in detail in this specification belong to the prior art. The above embodiments are merely descriptions of preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and improvements to the technical solutions of this utility model made by those skilled in the art without departing from the spirit of this utility model should fall within the protection scope defined by the claims of this utility model.

Claims

1. A U-shaped suspended work rack under the wing plate of a steel box girder, characterized in that, It includes two supporting columns (4), each of which has a lower longitudinal beam (11) and a short longitudinal beam (12) connected to its bottom sides respectively. Each of the supporting columns (4) has an upper longitudinal beam (1) connected to its upper side. Diagonal braces (3) are connected between the upper longitudinal beam (1) and the supporting column (4) and between the lower longitudinal beam (11) and the supporting column (4). A crossbeam (13) is connected between the upper parts of the two supporting columns (4). Several lower transverse partitions (9) are connected between the two lower longitudinal beams (11). The outer ends of the two short longitudinal beams (12) are connected to each other. The lower horizontal partition (9) is connected between the middle of the two upper longitudinal beams (1), and the counterweight area (2) is connected between the outer ends of the two upper longitudinal beams (1). Steel plates (10) are connected to both the upper and lower sides of the lower horizontal partition (9). A ladder (8) is connected between the crossbeam (13) and the upper steel plate (10). A protective fence (7) is connected to the lower longitudinal beam (11), and a protective column (17) is connected to the short longitudinal beam (12). A protective net (5) is installed on the protective column (17), and a pulley (18) is installed at the bottom of the upper longitudinal beam (1).

2. The U-shaped suspended work rack under the wing plate of a steel box girder according to claim 1, characterized in that... Each of the outer ends, middle parts, and inner ends of the lower longitudinal beam (11) is connected by a lower transverse partition (9).

3. The U-shaped suspended work rack under the wing plate of a steel box girder according to claim 1, characterized in that... The length of the lower longitudinal beam (11) is 2m, the length of the short longitudinal beam (12) is 0.8m, and the length of the upper longitudinal beam (1) is 2.2m. The upper longitudinal beam (1), the lower longitudinal beam (11), and the short longitudinal beam (12) are all made of I-beams of model 25a. The thickness of the lower diaphragm (9) and the diaphragm (19) is 6mm, and the thickness of the steel plate (10) is 8mm.

4. The U-shaped suspended work rack under the wing plate of a steel box girder according to claim 1, characterized in that... The counterweight area (2) is composed of a base plate (14), two long side plates (15) and two short side plates (16) connected together. The thickness of the base plate (14) is 6mm.

Images