CN104097253B - Cross-saddle single-track traffic environment protection movable formula pre-track beam forms system - Google Patents

Abstract

The utility model relates to an environment-friendly movable prefabricated track beam formwork system for straddle-type monorail traffic, which relates to a straddle-type monorail traffic prefabricated track beam formwork system. The system includes a steel frame system, rail beam transport system and steel formwork system. The steel frame is composed of steel pillars, top beams, bottom beams, and part or all of the components in the diagonal braces, and longitudinal beams are used to connect adjacent steel frames. The steel formwork system is installed within the steel framing system. Utilizing the formwork system of this invention can reduce the discharge of concrete construction waste and pollution to the environment. At the same time, the formwork system can be moved, assembled and reused along with the line erection site, reducing the need for rail beams to pass through bridges, tunnels and streets during transportation. and other constraints; shorten the construction period of the beam yard, and reduce the construction cost of monorail civil engineering.

Description

Environmentally friendly movable prefabricated track beam formwork system for straddle-type monorail traffic

technical field

The invention relates to a straddle type monorail traffic prefabricated track beam formwork system, which is applied in the prefabrication process of the straddle type monorail traffic track beam.

Background technique

The track beam in the straddle monorail traffic is not only the load-carrying beam body but also the track for vehicles to pass. bear the load of the vehicle tires. The three wheel-rail contact surfaces of the track beam are not only load-bearing, but also the track on which the vehicle runs. The three wheel-rail contact surfaces of the track beam change in a spatial curved surface, and the manufacturing precision of the track beam is required to be high. Therefore, strict requirements are placed on the formwork system.

At present, the prefabricated track beam formwork system in straddle monorail traffic mainly includes concrete foundation, left and right concrete reaction walls, steel formwork system and track beam transportation system. Among them, the steel formwork system includes side formwork, end formwork, bottom formwork, top beams, spreaders, and mechanical jacks; the track beam transportation system includes bottom formwork trolleys and rail lines. The left and right concrete reaction walls and the concrete foundation are poured as a whole, and the beam ends of the top beams in the steel formwork system are fixed on the concrete reaction walls. The bottom formwork in the steel formwork system is placed on the top surface of the bottom formwork trolley, and the end formwork is placed on the bottom formwork. The mechanical jack in the steel formwork system is installed on the concrete reaction wall, and the hoist is installed on the top beam. The side formwork is hung under the spreader and connected with mechanical jacks respectively. In the track beam transportation system, the rail line is laid on the concrete foundation between the left and right concrete reaction walls. The bottom form trolley of the track beam transportation system transports the steel skeleton, support and end formwork required for the prefabricated track beam to the steel formwork system between the left and right concrete reaction walls before beam making through the rail line. Adjust the mechanical jacks so that the side formwork meets the alignment requirements of the track beams. After the prefabricated beams are poured, the prefabricated track beams are transported out. Since both the foundation and the reaction wall are cast-in-situ concrete, a large amount of concrete is required. At the same time, when the formwork system is dismantled in the later stage, a large amount of construction waste will be generated, which will cause great damage to the environment. In addition, the formwork system cannot be moved and assembled following the location of the line, and on-site operations such as pouring concrete foundations and concrete reaction walls will restrict the commissioning period of the beam yard.

The existing prefabricated track beam formwork system determines that a large amount of concrete needs to be used to pour the foundation and the reaction wall when constructing the formwork system. When all the prefabricated track beams are completed, the mass concrete foundation and reaction walls used in the track beam formwork system need to be removed, and the land leveling needs to be restored. These tasks will cause noise pollution and a large amount of construction waste. In addition, the working characteristics of the existing track beam formwork system determine that the manufacturing site of the prefabricated track beam is far away from the installation and erection site of the track beam. During the long-distance transportation of the track beam, the route along the route needs to be surveyed, closed and reinforced in advance. Especially when transporting track girders on road sections such as restricted bridges, tunnels and streets, it will consume a lot of manpower and material resources. At the same time, the existing track beam formwork system occupies a large area of the beam making field, and a larger site needs to be requisitioned in order to store a large number of prefabricated track beam bodies.

Contents of the invention

The technical problems to be solved by the present invention are: to solve the disadvantages that the prefabricated track beam formwork system needs to use a large amount of concrete, reduce the amount of concrete used, reduce the discharge of construction waste and the pollution to the environment; solve the disadvantages of the existing formwork system that cannot be moved, so that The track beam formwork system can be moved, assembled and used repeatedly with the line erection site, reducing the constraints of bridges, tunnels and streets when transporting the track beams, shortening the transportation distance of the track beams, and reducing transportation costs; The commissioning period is shortened, the use efficiency of the track beam formwork system is improved, and the construction cost of the straddle-type monorail traffic civil engineering is reduced.

The technical solution adopted by the present invention to solve its technical problems is:

The straddle-type monorail traffic environment-friendly movable prefabricated track beam formwork system includes: track beam transportation system and steel formwork system; track beam transportation system includes bottom mold trolley, rail line; steel formwork system includes Formwork, top beam, spreader, mechanical jack; the bottom formwork trolley is placed on the rail line, and the bottom formwork is placed on the bottom formwork trolley; the spreader is installed on part or all of the top beam; the side formwork is hung under the spreader , the outer side of the side formwork is connected with a mechanical jack;

The environment-friendly movable prefabricated track beam formwork system for straddle-type monorail traffic is characterized by: besides the track beam transportation system and steel formwork system, it also includes a steel frame system;

Steel framing systems comprising roof beams, steel struts, stringers, or roof beams, steel struts, stringers, bottom beams, or roof beams, steel struts, stringers, diagonal braces, or top beams, steel struts, stringers, beams, braces;

A steel frame includes a top beam and two steel pillars, the two ends of the top beam are respectively connected to the upper ends of the two steel pillars; the steel pillars are supported by diagonal braces on their sides, or connected by bottom beams at their lower ends Or it is supported by diagonal braces on its side and connected by bottom beams at its lower ends; the lower ends of steel pillars and diagonal braces are fixed on the ground or on bottom beams; longitudinal beams are used between adjacent steel frames or adjacent bottom beams Longitudinal connection; mechanical jack fixed on the steel pillar;

The longitudinal beams include upper longitudinal beams, middle longitudinal beams, lower longitudinal beams and bottom longitudinal beams.

The connection between the top beam, steel pillar, diagonal brace, bottom beam and longitudinal beam adopts bolt connection, welding or pin connection.

The steel frame, diagonal braces, bottom girders and longitudinal girders are all made of section steel or steel plates.

The environment-friendly movable prefabricated track beam formwork system for straddle-type monorail traffic includes N steel frames, and the value of N is 10-30; the longitudinal distance between adjacent steel frames is 0.5-10m.

The beneficial effects of the present invention are: the track beam formwork system uses a steel frame system to replace the concrete foundation and concrete reaction wall in the original track beam formwork system, which greatly reduces the amount of concrete used to build the track beam formwork system, thereby reducing construction waste emissions and environmental pollution. At the same time, the track beam formwork system can be moved, assembled and reused along with the line erection site, reducing the constraints of bridges, tunnels and streets when the track beam is transported, shortening the transport distance of the track beam, and reducing transportation costs; The commissioning cycle of the beam making yard is improved, the efficiency of the track beam formwork system is improved, and the construction cost of the straddle-type monorail traffic civil engineering is reduced.

Description of drawings

Fig. 1 Schematic diagram of the steel frame of the prefabricated track beam formwork system with diagonal braces and bottom beams.

Fig. 2 Schematic diagram of the steel frame of the prefabricated track beam formwork system without braces and bottom beams.

Fig. 3 Schematic diagram of the steel frame of the prefabricated track beam formwork system with diagonal braces and bottomless beams.

Figure 4 is a schematic diagram of the steel frame of the prefabricated track beam formwork system without diagonal braces and bottom beams.

Figure 5 is the elevation view of the frame system in the prefabricated track beam formwork system with diagonal braces and bottom beams.

Figure 6 is the elevation view of the beam-making stage of the prefabricated track beam formwork system with diagonal braces and bottom beams.

Fig. 7 The elevation view of the assembly stage of the prefabricated track beam formwork system with diagonal braces and bottom beams.

Fig. 8 A-A sectional view in Fig. 7 .

Figure 9. Elevation of the stage of dismantling the mechanical jack of the prefabricated track beam formwork system with diagonal braces and bottom beams.

In the figure: steel pillar 1, top beam 2, diagonal brace 3, bottom beam 4, upper longitudinal beam 5-1, middle longitudinal beam 5-2, lower longitudinal beam 5-3, bottom longitudinal beam 5-4, rail line 6 , Spreader 7, side formwork 8, mechanical jack 9, bottom formwork 10, bottom formwork trolley 11.

detailed description

The present invention will be further described in conjunction with accompanying drawing:

Embodiment one

Environmentally friendly movable prefabricated track beam formwork system for straddle-type monorail traffic, the formwork system includes: N steel frame, diagonal brace 3, bottom beam 4, upper longitudinal beam 5-1, middle longitudinal beam 5-2, lower longitudinal beam 5-3, bottom longitudinal beam 5-4, rail line 6, spreader 7, side formwork 8, mechanical jack 9, bottom formwork 10, bottom formwork trolley 11.

A steel frame includes: a roof beam 2 and two steel pillars 1; the two ends of a roof beam 2 are respectively connected with the upper ends of the two steel pillars 1 by welding.

The outer side of the steel pillar 1 is welded to the upper end of the diagonal brace 3 , and the lower ends of the steel pillar 1 and the diagonal brace 3 are welded on the bottom beam 4 .

The adjacent steel frames are longitudinally bolted through the upper longitudinal beam 5-1, the middle longitudinal beam 5-2, and the lower longitudinal beam 5-3, and the adjacent bottom beams 4 are longitudinally bolted through the bottom longitudinal beam 5-4, such as figure 1.

The rail line 6 is laid on the ground between the two steel pillars 1 .

The bottom mold trolley 11 is placed on the rail line 6, and the bottom mold trolley 10 is placed on the bottom mold trolley 11.

The spreader 7 is installed on the top beam 2, two mechanical jacks 9 are installed on each steel pillar 1, the side template 8 is hung under the spreader 7, and the outside of the side template 8 is connected with the mechanical jack 9.

The size of N is determined according to the length of the track beam and the force characteristics of the side formwork.

Embodiment two

Environmentally friendly movable prefabricated track beam formwork system for straddle-type monorail traffic. Rail line 6, spreader 7, side formwork 8, mechanical jack 9, bottom formwork 10, bottom formwork trolley 11.

A steel frame includes: a roof beam 2 and two steel pillars 1; both ends of a roof beam 2 are welded to the upper ends of the two steel pillars 1 respectively.

The lower end of the steel pillar 1 is welded on the bottom beam 4 .

The adjacent steel frames are longitudinally bolted through the upper longitudinal beam 5-1, the middle longitudinal beam 5-2, and the lower longitudinal beam 5-3, as shown in Fig. 2 .

The rail line 6 is laid on the ground between the two steel pillars 1 .

The bottom mold trolley 11 is placed on the rail line 6, and the bottom mold trolley 10 is placed on the bottom mold trolley 11.

The spreader 7 is installed on the top beam 2, two mechanical jacks 9 are installed on each steel pillar 1, the side template 8 is hung under the spreader 7, and the outside of the side template 8 is connected with the mechanical jack 9.

The size of N is determined according to the length of the track beam and the force characteristics of the side formwork.

Embodiment three

Environmentally friendly movable prefabricated track beam formwork system for straddle-type monorail traffic, the formwork system includes: N steel frame, diagonal brace 3, upper longitudinal beam 5-1, middle longitudinal beam 5-2, lower longitudinal beam 5-3, Rail line 6, spreader 7, side formwork 8, mechanical jack 9, bottom formwork 10, bottom formwork trolley 11.

A steel frame includes: a roof beam 2 and two steel pillars 1; the two ends of a roof beam 2 are respectively connected with the upper ends of the two steel pillars 1 by welding.

The outer side of the steel pillar 1 is welded to the upper end of the diagonal brace 3, and the lower ends of the steel pillar 1 and the diagonal brace 3 are fixed on the ground.

The adjacent steel frames are longitudinally bolted through the upper longitudinal beam 5-1, the middle longitudinal beam 5-2, and the lower longitudinal beam 5-3, as shown in Fig. 3 .

The rail line 6 is laid on the ground between the two steel pillars 1 .

The bottom mold trolley 11 is placed on the rail line 6, and the bottom mold trolley 10 is placed on the bottom mold trolley 11.

The spreader 7 is installed on the top beam 2, two or three mechanical jacks 9 are installed on each steel pillar 1, the side template 8 is hung under the spreader 7, and the outside of the side template 8 is connected with the mechanical jack 9.

The size of N is determined according to the length of the track beam and the force characteristics of the side formwork.

Embodiment Four

Environmentally friendly movable prefabricated track beam formwork system for straddle-type monorail traffic, the formwork system includes: N steel frame, upper longitudinal beam 5-1, middle longitudinal beam 5-2, lower longitudinal beam 5-3, rail line 6, Spreader 7, side formwork 8, mechanical jack 9, bottom formwork 10, bottom formwork trolley 11.

A steel frame includes: a roof beam 2 and two steel pillars 1; both ends of a roof beam 2 are respectively connected to the upper ends of the two steel pillars 1 by welding, and the lower ends of the steel pillars 1 are fixed on the ground.

The adjacent steel frames are longitudinally bolted through the upper longitudinal beam 5-1, the middle longitudinal beam 5-2, and the lower longitudinal beam 5-3, as shown in Fig. 4 .

The rail line 6 is laid on the ground between the two steel pillars 1 .

The bottom mold trolley 11 is placed on the rail line 6, and the bottom mold trolley 10 is placed on the bottom mold trolley 11.

The spreader 7 is installed on the top beam 2, two mechanical jacks 9 are installed on each steel pillar 1, the side template 8 is hung under the spreader 7, and the outside of the side template 8 is connected with the mechanical jack 9.

The size of N is determined according to the length of the track beam and the force characteristics of the side formwork.

Application of environment-friendly movable prefabricated track beam formwork system for straddle monorail traffic

The length of the prefabricated track beam is 24m, and it is prefabricated with an environment-friendly movable prefabricated track beam formwork system. The system includes 19 steel frames and a matching number of bottom beams and braces, 76 mechanical jacks, 2 side formworks, 1 bottom formwork and 1 bottom formwork trolley.

1. Assembling straddle-type monorail traffic environment-friendly movable prefabricated track beam formwork system

Step 1. The two ends of a top beam 2 are respectively welded and connected to the upper ends of two steel pillars 1 to form a steel frame. The outer side of the steel pillar 1 is welded to the upper end of the diagonal brace 3, and the lower ends of the steel pillar 1 and the diagonal brace 3 are connected. Welded on the bottom beam 4, as shown in Figure 1.

Step 2. Conduct longitudinal bolt connection between adjacent steel frames through the upper longitudinal beam 5-1, middle longitudinal beam 5-2, and lower longitudinal beam 5-3, and conduct longitudinal bolt connection between adjacent bottom beams 4 through the bottom longitudinal beam 5-4. Bolt connection, as shown in Figure 1.

Step 3 The rail line 6 is laid on the ground between two steel pillars 1, as shown in Figure 7 .

Step 4: install the spreader 7 on the top beam 2, install two mechanical jacks 9 on each steel pillar 1, hang the side formwork 8 under the spreader 7, and connect the outer side of the side formwork 8 with the mechanical jack 9, as shown in the figure 7.

2. Application of straddle-type monorail traffic environment-friendly movable prefabricated track beam formwork system to make beams

Step 1 Place the bottom mold trolley 11 on the rail line 6, and the bottom formwork 10 is placed on the bottom mold trolley 11, as shown in Figure 6 .

Step 2 Bind the reinforcement cage on the bottom template 10.

Step 3 Push the bottom mold trolley 11 into the steel formwork system along the rail line 6, as shown in Figure 6.

Step 4 Adjust the mechanical jack 9 so that the side formwork 8 meets the linear requirements of the track beam, as shown in Figure 8.

Step 5 Concrete track beams are poured between the two side formworks 8; after one day of maintenance, adjust the mechanical jack 9 to disengage the side formwork 8 from the track beams, as shown in Figure 6; Roll out the steel frame system by the bottom mold trolley 11, as shown in Figure 7.

Repeat the above steps to produce the required number of track beams.

3. Dismantling and moving of straddle-type monorail traffic environment-friendly movable prefabricated track beam formwork system

Step 1 Remove the mechanical jack 9. Loosen the connection between the mechanical jack 9 and the side template 8, and remove the mechanical jack 9 from the steel pillar 1, as shown in Figure 9.

Step 2 Remove the side form 8. Disassemble the side formwork 8 from the hanger 7, and disassemble the hanger 7 from the top beam 2, as shown in Figure 5.

Step 3 Remove the steel frame. Loosen and disassemble the upper longitudinal beam 5-1, middle longitudinal beam 5-2, lower longitudinal beam 5-3 and bottom longitudinal beam 5-4 connecting the steel frames, and lay the rail line 6 in the steel frame tear down. Finally, remove the steel frame.

Step 4 The movement of the template system. The prefabricated track beam formwork system dismantled above is transported to the next site for installation or transported to the warehouse for storage for future beam fabrication.

The specific implementation method described above illustrates the purpose, technical solution and beneficial effects of the patent of the present invention. It should be emphasized that the above descriptions are only specific embodiments of the patent of the present invention, and should not be used to limit the scope of the present invention. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

To sum up, the present invention provides an environment-friendly movable prefabricated track beam formwork system for straddle-type monorail traffic. The formwork system can greatly reduce the discharge of construction waste and the pollution to the environment. At the same time, the formwork system can be moved, assembled and reused along with the line erection site, reducing the restrictions on passing bridges, tunnels and streets during rail beam transportation; shortening the construction period of the beam making yard and reducing the cost of monorail traffic construction cost of the project. The present invention has novelty and practicability, and meets the requirements of the invention patent, so the application for the invention patent is filed according to law.

Claims (2)

1. An environment-friendly movable prefabricated track beam formwork system for straddling monorail traffic. The formwork system includes: track beam transportation system and steel formwork system; the track beam transportation system includes bottom form trolley (11) and rail line (6); The steel formwork system includes side formwork (8), bottom formwork (10), top beam (2), spreader (7), mechanical jack (9); the bottom formwork trolley (11) is placed on the rail line (6) , the bottom formwork (10) is placed on the bottom formwork trolley (11); the spreader (7) is installed on part or all of the top beam (2); the side formwork (8) is hung under the spreader (7), and the side formwork The outside of (8) is connected with mechanical jack (9); Its characteristics are: In addition to rail beam transportation system and steel formwork system, it also includes steel frame system; The steel frame system includes top beams (2), steel pillars (1), longitudinal beams, or top beams (2), steel pillars (1), longitudinal beams, bottom beams (4), or top beams (2), steel pillars (1), longitudinal beam, diagonal brace (3), or top beam (2), steel pillar (1), longitudinal beam, bottom beam (4), diagonal brace (3); A steel frame comprises a top beam (2) and two steel pillars (1), and the two ends of the top beam (2) are respectively connected with the upper ends of the two steel pillars (1); The side is supported by a diagonal brace (3), or connected with a bottom beam (4) at its lower end, or supported by a diagonal brace (3) on its side and connected with a bottom beam (4) at its lower end; the steel pillar (1) and The lower end of the diagonal brace (3) is fixed on the ground or on the bottom beam (4); longitudinal beams are used to connect adjacent steel frames or adjacent bottom beams (4); the mechanical jack (9) is fixed on On the steel pillar (1); The longitudinal beams include upper longitudinal beams (5-1), middle longitudinal beams (5-2), lower longitudinal beams (5-3), and bottom longitudinal beams (5-4); The connections among the top beam (2), steel pillar (1), diagonal brace (3), bottom beam (4) and longitudinal beam are bolted, welded or pinned; Steel frames, diagonal braces (3), bottom girders (4) and longitudinal girders are all manufactured by section steel or steel plates. 2. The environment-friendly movable prefabricated track beam formwork system for straddling monorail traffic according to claim 1, characterized in that: The environment-friendly movable prefabricated track beam formwork system for straddle-type monorail traffic includes N steel frames, and the value of N is 10-30; the longitudinal distance between adjacent steel frames is 0.5-10m.