CN205421029U - Horizontal channel device of suspension bridge catwalk - Google Patents

Abstract

The utility model relates to a catwalk transverse channel device for a suspension bridge, which at least includes a rectangular bottom beam; a platform mesh surface is arranged on the rectangular bottom beam; vertical beams perpendicular to the rectangular bottom beam are arranged at four corners of the rectangular bottom beam; the vertical beam It is fixedly connected with the rectangular bottom beam through the U-shaped card arranged on the lower end of the bottom beam; the middle part between the vertical beams on the long side of the rectangular bottom beam is provided with an intermediate module, and the left and right ends of the intermediate module are connected with tail ends by bolts module, the end module is connected to the vertical beam by bolts; the middle module and the end module are respectively connected to the rectangular bottom beam by bolts; the middle module is a module channel composed of multiple Bailey racks connected by bolts; the end module is Frame channels welded from square steel. The method of bolt connection and pin connection is adopted, the process is simple, and the installation and disassembly are convenient. The personnel walking passage is set inside the horizontal passage, which is safe and saves materials.

Description

A suspension bridge catwalk transverse channel device

technical field

The utility model belongs to the field of suspension bridges, in particular to a transverse channel device for catwalks of suspension bridges.

Background technique

Cable bridge (Cablebridge/Suspensionbridge). Also known as suspension bridge, rope bridge, suspension bridge, etc., it is a bridge suspended by using bamboo cables, rattan cables, iron cables, etc. as the backbone. It is called Jiqiao, Ruoqiao and Rope Bridge in ancient books. Most of them are built in dangerous valleys with steep banks where the current is fast and it is not easy to make bridge piers, and they are mainly found in the southwest region. The method is to build a house on both sides of the bank, and set up a rope-tethering column and a twisted rope rotating column in the house, and then use a few thick ropes to tie them flat, and then lay wooden boards on the ropes, and some add one or two ropes on both sides. as a handrail.

During the construction of the cable bridge, the catwalk is a linear temporary construction access road that is erected under the main cable and parallel to the main cable during the construction of the suspension bridge. It is a high-altitude scaffold for construction workers to carry out construction work, and a construction platform for the main cable system and even the entire upper structure of the suspension bridge. On it, construction personnel complete important tasks such as cable strand traction, strand adjustment, saddle shaping, cable tightening, cable clamp and sling installation, box girder hoisting and site connection, main cable winding, protective coating and other important tasks. There is one upstream and one downstream, and the section is usually U-shaped, long and narrow with some wobbling, so it is called "catway", and the English is catway. It is an extremely important temporary facility in the construction of the suspension bridge and will be demolished after the bridge is completed.

The traditional horizontal channel of catwalk adopts welded structure of steel pipe or square steel pipe. Due to the welding method between steel pipes, the manufacturing process is complicated, time-consuming and heavy. The construction personnel's walking passage is at the upper part of the transverse passage as a whole.

Utility model content

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a method of adopting the Bailey sheet structure. The Bailey sheets are bolted and pinned, and the process is simple and easy to install and disassemble. The personnel walking passage is set inside the transverse passage, which is a safe and material-saving suspension bridge catwalk transverse passage device.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a suspension bridge catwalk transverse channel device, at least including a rectangular bottom beam; the rectangular bottom beam is provided with a platform mesh surface; the rectangular bottom beam There are vertical beams perpendicular to the rectangular bottom beam at the four corners; the vertical beam is fixedly connected to the rectangular bottom beam through a U-shaped card arranged on the lower end surface of the bottom beam;

The middle part between the vertical beams on the long side of the rectangular bottom beam is provided with an intermediate module, and the left and right ends of the intermediate module are connected with end modules by bolts, and the end modules are connected with the vertical beams by bolts; The middle module and the end module are respectively connected to the rectangular bottom beam through bolts;

The middle module is a module channel formed by connecting multiple Bailey frames through bolts; the tail module is a frame channel welded by square steel.

The end of the rectangular bottom beam is fixedly connected with the top of the vertical beam with a tie rod.

A platform spacer is provided between the platform mesh surface and the rectangular bottom beam.

The left and right sides of the plurality of Bailey racks are connected by I-beams, and the left and right sides of the bottom of the plurality of Bailey racks are connected by flower racks.

The length of described Bailey frame is 18m, and height is 1.4m, and width is 1.5mm.

The utility model adopts the above technical scheme, and has the following advantages: the utility model adopts the Bailey plate structure, and the Bailey pieces are bolted and pinned, the process is simple, and the installation and disassembly are convenient. The personnel walking passage is set inside the horizontal passage, which is safe and saves materials; at the same time

⑴The Bailey truss structural transverse channel adopts the bolt connection method during processing and assembly, and does not require welding, thus greatly improving the working efficiency;

⑵Compared with the conventional steel pipe and square steel pipe welding structure, a large number of welding and assembly processes are saved to save the construction period;

(3) In the case of meeting the design requirements, it is lighter than the weight of the traditional transverse channel, its total weight is about 6t, and the weight of the traditional transverse channel is about 10t;

⑷Because of its light weight, the hoisting and dismantling process is also very convenient;

⑸ After the horizontal channel is removed, it is only necessary to unbolt the middle module and the end module to recover the Bailey frame and turn it over to the next construction.

⑹Comprehensive Bailey frame structure from its processing efficiency, raw material saving, construction period saving, raw material recycling and reuse, will also greatly reduce costs.

Description of drawings

Fig. 1 structural representation of the utility model;

Fig. 2 is a side view structural representation of the utility model

Fig. 3 is a side view structural schematic diagram of the middle module of the utility model;

Fig. 4 is a top view structural schematic diagram of the intermediate module of the present invention;

Fig. 5 is a structural schematic diagram of the tail end module of the present invention.

In the figure: 1. Rectangular bottom beam; 2. Vertical beam; 3. U-shaped card; 4. Middle module; Tie rod; 10. I-beam; 11. Flower stand.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Example 1

A kind of suspension bridge catwalk transverse channel device, as Fig. 2 at least comprises a rectangular bottom beam 1; Described rectangular bottom beam 1 is provided with platform mesh surface 7; The four corner positions of described rectangular bottom beam 1 have The vertical beam 2 perpendicular to the beam 1; the vertical beam 2 is fixedly connected with the rectangular bottom beam 1 through the U-shaped card 3 arranged on the lower end surface of the bottom beam;

The middle part between the vertical beams 2 on the long sides of the rectangular bottom beam 1 is provided with an intermediate module 4 as shown in Figure 1, and the left and right ends of the intermediate module 4 are connected with tail end modules 5 by bolts. 5 is connected to the vertical beam 2 by bolts; the middle module 4 and the end module 5 are respectively connected to the rectangular bottom beam 1 by bolts;

The middle module 4 is a module channel composed of a plurality of Bailey frames 6 as shown in Fig. 3 and Fig. 4 connected by bolts; the tail end module 5 is welded by square steel as shown in Fig. 5 The frame channel formed;

In this embodiment, the overall structure of the catwalk transverse channel device of the suspension bridge is pre-processed and assembled in the processing plant, and only the middle module and the end module need to be fixed to the designated position by means of bolting and pinning at the scene. Compared with the current connection method, no welding is required, which greatly improves the working efficiency; compared with the conventional steel pipe and square steel pipe welding structure, it saves a lot of welding and assembly processes, thus saving the construction period; after the horizontal channel is removed, it only needs to be removed The bolted connection between the middle module and the end module can recycle the Bailey frame and turn it over to the next construction. The integrated Bailey frame structure will also greatly reduce the cost in terms of its processing efficiency, raw material saving, construction period saving, and raw material recycling and reuse. .

Example 2

A suspension bridge catwalk transverse channel device, as shown in Figure 2, at least includes a rectangular bottom beam 1; the rectangular bottom beam 1 is provided with a platform mesh surface 7; between the described platform mesh surface 7 and the rectangular bottom beam 1 There is a platform gasket 10; it is safer for the staff to work in the catwalk, which improves the safety performance of the catwalk; the four corners of the rectangular bottom beam 1 have vertical beams 2 perpendicular to the rectangular bottom beam 1; The vertical beam 2 is fixedly connected with the rectangular bottom beam 1 through the U-shaped clip 3 arranged on the lower end surface of the bottom beam; the end of the rectangular bottom beam 1 is fixedly connected with the top of the vertical beam 2 with a tie rod 8 to increase the reliability of the catwalk ;

The middle part between the vertical beams 2 on the long sides of the rectangular bottom beam 1 is provided with an intermediate module 4 as shown in Figure 1, and the left and right ends of the intermediate module 4 are connected with tail end modules 5 by bolts. 5 is connected to the vertical beam 2 by bolts; the middle module 4 and the end module 5 are respectively connected to the rectangular bottom beam 1 by bolts;

The middle module 4 is a modular channel formed by connecting a plurality of Bailey frames 6 as shown in Fig. 3 and Fig. 4 by bolts; the catwalk transverse channel device is processed and manufactured in a processing plant. The middle module 4 adopts a Bailey frame 6 structure with a length of 18m, a width of 1.5m and a height of 1.4m. It consists of 6 groups of 3m-long bayley frames; each group of bayley frames is bolted by a flower frame 11, and each group of bayley frames is bolted to a 2.6-m-long type I-beam 10;

The tail end module 5 is a frame channel welded by square steel as shown in FIG. 5 . The tail end module 5 is welded and assembled by square steel pipes. The square steel pipes of the beams are made of square steel pipes of Q235 type 120×120×4mm. The end module 5 has a width of 1.5m and a height of 1.4m, the length of the rod 1 is 7m, and the length of the rod 6 is 6.5m. The pulley device and lifting lugs need to be welded on the end module. Pay attention to the welding process during the processing of the tail module, and the height of the weld leg is 6mm;

The middle module 4 of the transverse channel of this bridge is connected to the Bailey frame 3. Since the end module 5 needs to be connected with the load-bearing rope of the catwalk, the mobile tackle needs to be welded, and the Bailey frame cannot be welded. Therefore, the tail module is changed to square steel pipe welding. 11# and 24# square steel pipes are 120×120×4mm; 12#～23# use 80×80×3mm square steel pipes, and the square steel pipes between Both are welding mode.

In this embodiment, the overall structure of the catwalk transverse channel device of the suspension bridge is pre-processed and assembled in the processing plant, and only the middle module and the tail end module need to be fixed to the designated position by means of bolting and pinning at the scene. Compared with the current connection method, no welding is required, which greatly improves the working efficiency; compared with the conventional steel pipe and square steel pipe welding structure, it saves a lot of welding and assembly processes, thus saving the construction period; after the horizontal channel is removed, it only needs to be removed The bolted connection between the middle module and the end module can recycle the Bailey frame and turn it over to the next construction. The integrated Bailey frame structure will also greatly reduce the cost in terms of its processing efficiency, raw material saving, construction period saving, and raw material recycling and reuse. .

The above examples are only illustrations of the utility model, and do not constitute a limitation to the protection scope of the utility model. All designs identical or similar to the utility model all belong to the protection scope of the utility model.

Claims (5)

1. A suspension bridge catwalk transverse channel device, characterized in that it comprises at least one rectangular bottom beam (1); said rectangular bottom beam (1) is provided with a platform mesh surface (7); said rectangular bottom beam (1) has a vertical beam (2) perpendicular to the rectangular bottom beam (1) at the four corners; said vertical beam (2) and the rectangular bottom beam (1) pass through the U-shaped The card (3) is fixedly connected; The middle part between the vertical beams (2) on the long sides of the rectangular bottom beam (1) is provided with an intermediate module (4), and the left and right ends of the intermediate module (4) are connected with tail modules (5) by bolts , the end module (5) is connected to the vertical beam (2) by bolts; the middle module (4) and the end module (5) are respectively connected to the rectangular bottom beam (1) by bolts; The middle module (4) is a module channel composed of a plurality of Bailey frames (6) connected by bolts; the tail module (5) is a frame channel formed by welding square steel. 2. A suspension bridge catwalk transverse channel device according to claim 1, characterized in that the end of the rectangular bottom beam (1) is fixedly connected with the top of the vertical beam (2) with a tie rod (8). 3. A suspension bridge catwalk transverse channel device according to claim 2, characterized in that a platform gasket (10) is provided between the platform mesh surface (7) and the rectangular bottom beam (1). 4. A suspension bridge catwalk transverse channel device according to claim 1, characterized in that the left and right sides of the multiple Bailey frames (6) are connected by I-beams (9), and the multiple Bailey frames The bottom left and right sides of frame (6) are connected by flower frame (11). 5. A suspension bridge catwalk transverse channel device according to claim 1, characterized in that the length of the Bailey frame (6) is 18m, the height is 1.4m, and the width is 1.5m.