Transverse channel for beam surface of double-width box beam

Abstract

The utility model relates to the technical field of box girder construction, and particularly discloses a beam surface transverse channel of a double-width box girder. The channel comprises a channel body arranged between a left beam and a right beam of a double-beam box girder, the channel body comprises a rectangular bottom platform frame, kidney-shaped through holes are formed in the two sides of the bottom platform frame in the length direction, fixing pieces are arranged at the kidney-shaped through holes, each fixing piece comprises a fastening bolt penetrating through the corresponding kidney-shaped through hole, and the fastening bolts are used for clamping and fixing the channel body and a girder surface guardrail. Fastening nuts are arranged on the fastening bolts, and the fixing piece further comprises U-shaped bolts which are arranged on the fastening bolts and used for being fixedly connected with a beam surface guardrail steel bar. Before and after a double-width box girder guardrail is poured, the double-width box girder guardrail can be used, and the double-width box girder guardrail can be stably connected with a girder surface.

Description

Technical Field

[0001] This utility model relates to the field of box girder construction technology, specifically to a transverse channel on the beam surface of a double-span box girder. Background Technology

[0002] In current highway and national / provincial trunk road engineering projects, a dual-span design is generally adopted, while bridge engineering typically uses a separate design. During bridge construction, simultaneous or overlapping work on both spans is often required. When construction reaches the beam surface, the height difference with the ground is significant, and there is a certain gap between the two spans, making direct passage for construction personnel impossible. This is generally addressed by constructing a transverse passage between the two box girders. Currently, these transverse passages are typically placed directly above the gap between the two box girders, with connectors used to link the transverse passage to the guardrail reinforcement on the beam surface. However, once the guardrail construction is complete, there is no stable connection between the transverse passage and the beam surface, making it prone to movement during use and posing a safety hazard. Utility Model Content

[0003] This invention provides a transverse channel on the beam surface of a double-span box girder, which can overcome some or all of the defects of the prior art.

[0004] According to the present invention, a transverse passage on the beam surface of a double-span box girder includes a passage body located between the left and right spans of the double-span box girder. The passage body includes a rectangular bottom platform frame. The bottom platform frame has waist-shaped through holes on both sides along its length. Fixing components are provided at the waist-shaped through holes. The fixing components include fastening bolts passing through the waist-shaped through holes. The fastening bolts are used to secure the passage body to the beam surface guardrail. The fastening bolts are provided with fastening nuts. The fixing components also include U-shaped bolts provided on the fastening bolts for connecting and fixing with the reinforcing bars of the beam surface guardrail.

[0005] This invention allows for the secure connection of U-bolts to the reinforcing steel bars of the beam surface before guardrail construction, preventing movement and potential safety accidents during use. After guardrail construction, the reinforcing steel bars are cast into the guardrail. At this point, the U-bolts are removed, and the position of the fastening bolts in the slotted holes is adjusted to ensure they are firmly against the guardrail. The fastening nuts are then tightened to secure the transverse passage. The design of the slotted holes and the position of the fastening bolts allow for adjustment of the passage between double-span box girders of varying widths, offering strong adaptability and suitability for various bridge structures. When the spacing between the double-span box girders changes, the position of the fastening bolts can be adjusted according to actual needs, adapting to different usage scenarios. The design of the fastening bolts simplifies the installation process; simply pass the bolts through the slotted holes and fix them to the bottom platform frame. This simple operation saves installation time and labor costs.

[0006] Preferably, the base platform frame includes multiple horizontal bars arranged in parallel, with longitudinal bars at both ends of each horizontal bar, and a waist-shaped through hole located on the longitudinal bar.

[0007] Through this invention, the combination of horizontal and vertical bars forms a stable grid structure, which improves the overall stability and load-bearing capacity of the base platform frame. At the same time, the parallel arrangement of multiple horizontal bars can evenly distribute the load, reduce the burden on individual horizontal bars, and enhance the durability of the entire frame. The waist-shaped through holes are located on the vertical bars, and the position of the fastening bolts inside the waist-shaped through holes can be adjusted to fix the transverse channels. The fixing point is rectangular, which has a better fixing effect.

[0008] As a preferred option, staircases are provided at both ends of the main passageway, with the staircases at both ends of the main passageway located on the left and right sides of the double box girder, respectively.

[0009] With this utility model, the staircase is located on the left and right sides of the double box girder, which makes it convenient for staff to enter or leave the passage from either side. The design of the staircase also makes it easy for staff to quickly reach the other side of the passage, making it more convenient to use.

[0010] Preferably, the length of the waist-shaped through hole is greater than the distance between the left and right sides of the double-span box girder, and the fastening bolts are located between the left and right sides of the double-span box girder.

[0011] This invention improves the adaptability of the transverse passage by increasing the adjustment range of the fastening bolt position due to the greater length of the waist-shaped through hole than the distance between the two box girders. The fastening bolts, located between the two box girders, prevent the passage body from shifting under transverse force, thus improving the safety of the transverse passage. The length of the waist-shaped through hole provides additional adjustment space, allowing the passage body to be finely adjusted according to actual conditions to adapt to different installation requirements and environmental conditions.

[0012] As a preferred embodiment, a protective mesh is provided above the main body of the channel, a fixed flange is welded to the bottom of the protective mesh, and connecting through holes are provided at both ends of the longitudinal rod. Connecting bolts passing through the fixed flange and connecting through holes are provided between the protective mesh and the longitudinal rod.

[0013] This invention effectively prevents personnel and objects from falling from above the passageway, reducing safety risks. The fixing flange at the bottom of the protective netting ensures its stability and prevents displacement during use. The protective netting is fixed to the longitudinal bars by connecting bolts, forming a stable overall structure and enhancing the stability of the passageway. The connecting through holes at both ends of the longitudinal bars allow the protective netting to be tightly connected to the bars, further improving the structural stability. The design of the fixing flange and connecting bolts makes the installation of the protective netting simple and quick, and also facilitates later maintenance and replacement.

[0014] As a preferred option, a patterned steel plate is provided above the bottom platform frame.

[0015] Through this utility model, the concave and convex texture of the patterned steel plate provides good anti-slip performance, reducing the risk of workers slipping and falling in wet or oily environments. In addition, the patterned steel plate is usually made of high-strength steel, which can withstand a large load and has a high safety. The patterned steel plate also provides a flat walking surface, which is convenient for workers to walk and for equipment to move, making it more user-friendly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the transverse passageway on the beam surface of a double-span box girder;

[0017] Figure 2 This is a schematic diagram of the base platform framework;

[0018] Figure 3 This is a top-down view of the main structure of the passageway;

[0019] Figure 4 This is a side view diagram of the transverse passageway;

[0020] Figure 5 Schematic diagram of the transverse passage before the guardrail is poured;

[0021] Figure 6 A schematic diagram of the transverse passage after the guardrail has been poured. Detailed Implementation

[0022] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0023] Example 1

[0024] like Figure 1-6 As shown, this embodiment provides a transverse passageway on the surface of a double-span box girder, which includes a passageway body 100 located between the left and right spans of the double-span box girder. The passageway body 100 includes a rectangular bottom platform frame 110. The bottom platform frame 110 has waist-shaped through holes 210 on both sides along its length. Fixing members 120 are provided at the waist-shaped through holes 210. The fixing members 120 include fastening bolts 130 passing through the waist-shaped through holes 210. The fastening bolts 130 are used to secure the passageway body 100 to the beam surface guardrail. Fastening nuts 140 are provided on the fastening bolts 130. The fixing members 120 also include U-shaped bolts 150 provided on the fastening bolts 130 for connecting and fixing with the reinforcing bars of the beam surface guardrail.

[0025] In this embodiment, before the guardrail construction, the fastening bolt 130 can be firmly connected to the guardrail reinforcement on the beam surface using U-bolts 150 to prevent it from moving during use and causing safety accidents. After the guardrail construction is completed, the guardrail reinforcement on the beam surface is cast into a guardrail. At this time, the U-bolts 150 are removed, and the position of the fastening bolt 130 in the waist-shaped through hole 210 is adjusted so that the fastening bolt 130 is pressed against the guardrail. Then, the fastening nut 140 is tightened to achieve the effect of fixing the transverse passage. The design of the waist-shaped through hole 210 and the position of the fastening bolt 130 allow the passage to be adjusted between double-span box girders of different widths, which is highly adaptable and suitable for various bridge structures. When the interval between the double-span box girders changes, the position of the fastening bolt 130 can be adjusted according to actual needs to adapt to different usage scenarios. The design of the fastening bolt 130 simplifies the installation process. It is only necessary to pass the bolt through the waist-shaped through hole 210 and fix it on the bottom platform frame 110. The operation is relatively simple and saves installation time and labor costs.

[0026] In this embodiment, the base platform frame 110 includes multiple horizontal bars 220 arranged in parallel, with vertical bars 230 at both ends of the horizontal bars 220, and waist-shaped through holes 210 located on the vertical bars 230.

[0027] In this embodiment, the combination of crossbars 220 and longitudinal bars 230 forms a stable grid structure, which improves the overall stability and load-bearing capacity of the base platform frame 110. At the same time, the parallel arrangement of multiple crossbars 220 can evenly distribute the load, reduce the burden on individual crossbars 220, and enhance the durability of the entire frame. The waist-shaped through hole 210 is located on the longitudinal bar 230, and the position of the fastening bolt 130 inside the waist-shaped through hole 210 can be adjusted to fix the transverse channel. The fixing point is rectangular, which has a better fixing effect.

[0028] In this embodiment, staircases 160 are provided at both ends of the main channel 100, and the staircases 160 at both ends of the main channel 100 are located on the left and right sides of the double box girder.

[0029] In this embodiment, the staircase 160 is located on the left and right sides of the double box girder, making it convenient for staff to enter or leave the passage from either side. The design of the staircase 160 also makes it easy for staff to quickly reach the other side of the passage, making it convenient to use.

[0030] In this embodiment, the length of the waist-shaped through hole 210 is greater than the distance between the left and right sides of the double-span box girder, and the fastening bolt 130 is located between the left and right sides of the double-span box girder.

[0031] In this embodiment, since the length of the waist-shaped through hole 210 is greater than the distance between the two box girders, the adjustment range of the fastening bolt 130 position is increased, thereby increasing the applicability of the transverse passage. The fastening bolt 130 is located between the two box girders, preventing the passage body 100 from shifting under transverse force, thus improving the safety of the transverse passage. The length of the waist-shaped through hole 210 provides additional adjustment space, allowing the passage body 100 to be finely adjusted according to actual conditions to adapt to different installation requirements and environmental conditions.

[0032] In this embodiment, a protective mesh 170 is provided above the channel body 100, a fixed flange 310 is welded to the bottom of the protective mesh 170, and a connecting through hole 220 is provided at both ends of the longitudinal rod 230. A connecting bolt 410 passing through the fixed flange 310 and the connecting through hole 220 is provided between the protective mesh 170 and the longitudinal rod 230.

[0033] In this embodiment, the protective mesh 170 can effectively prevent people and objects from falling from above the passage, reducing safety risks. The fixing flange 310 at the bottom of the protective mesh 170 ensures the stability of the protective mesh 170 and prevents it from shifting during use. The protective mesh 170 is fixed to the longitudinal bar 230 by the connecting bolts 410, forming a stable overall structure and enhancing the stability of the passage. The connecting through holes 220 at both ends of the longitudinal bar 230 allow the protective mesh 170 to be tightly connected to the longitudinal bar 230, further improving the stability of the structure. The design of the fixing flange 310 and the connecting bolts 410 makes the installation process of the protective mesh 170 simple and quick, and also facilitates later maintenance and replacement.

[0034] In this embodiment, a patterned steel plate 320 is provided above the bottom platform frame 110.

[0035] In this embodiment, the textured surface of the patterned steel plate provides excellent anti-slip performance, reducing the risk of workers slipping and falling in wet or oily environments. Furthermore, the patterned steel plate is usually made of high-strength steel, which can withstand large loads and is therefore highly safe. The patterned steel plate also provides a flat walking surface, which facilitates workers' walking and equipment movement, making it more user-friendly.

[0036] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0037] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A transverse passageway on the beam surface of a double-span box girder, characterized in that: The passage body (100) is located between the left and right sides of the double box girder. The passage body (100) includes a rectangular bottom platform frame (110). The bottom platform frame (110) has waist-shaped through holes (210) on both sides along its length. A fastener (120) is provided at the waist-shaped through hole (210). The fastener (120) includes a fastening bolt (130) that passes through the waist-shaped through hole (210). The fastening bolt (130) is used to secure the passage body (100) to the beam guardrail. A fastening nut (140) is provided on the fastening bolt (130). The fastener (120) also includes a U-bolt (150) provided on the fastening bolt (130) for connecting and fixing with the reinforcing steel bars of the beam guardrail.

2. The transverse passageway on the beam surface of a double-span box girder according to claim 1, characterized in that: The bottom platform frame (110) includes multiple horizontal bars (220) arranged in parallel, with vertical bars (230) at both ends of the horizontal bars (220), and waist-shaped through holes (210) located on the vertical bars (230).

3. The transverse passageway on the beam surface of a double-span box girder according to claim 1, characterized in that: The main body of the passage (100) is equipped with staircases (160) at both ends. The staircases (160) at both ends of the main body of the passage (100) are located on the left and right sides of the double box girder.

4. The transverse passageway on the beam surface of a double-span box girder according to claim 1, characterized in that: The length of the waist-shaped through hole (210) is greater than the distance between the left and right sides of the double box girder, and the fastening bolt (130) is located between the left and right sides of the double box girder.

5. A transverse passageway on the beam surface of a double-span box girder according to claim 1, characterized in that: A protective mesh (170) is provided above the main body of the channel (100). A fixed flange (310) is welded to the bottom of the protective mesh (170). A connecting through hole (220) is provided at both ends of the longitudinal rod (230). A connecting bolt (410) is provided between the protective mesh (170) and the longitudinal rod (230) and passes through the fixed flange (310) and the connecting through hole (220).

6. The transverse passageway on the beam surface of a double-span box girder according to claim 1, characterized in that: A patterned steel plate (320) is provided above the bottom platform frame (110).

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