CN218712193U - Adjustable supporting system for bridge steel mould - Google Patents

Abstract

The utility model discloses an adjustable braced system for bridge steel mould, including pedestal, die block, end mould, side form and centre form, pedestal both sides outer wall all is connected with the side form framed bent through fixing bolt, and the side form framed bent outside all is fixed with edge of a wing baffle support, is fixed with the workstation on the edge of a wing baffle support, the die block is fixed in the pedestal top through the vertical hydraulic pressure vaulting pole of die block, the side form comprises web side form and pterygoid lamina mould concatenation, and the side form overlap joint on the side form framed bent, pedestal, side form framed bent bottom all move the roof beam slide through being connected with, it is fixed with the horizontal hydraulic pressure vaulting pole of die block to move roof beam slide top, the main body frame of centre form comprises two standard blocks, two dysmorphism blocks. The utility model discloses a template system of many hydraulic cylinders and gear combination realizes the regulation that becomes more meticulous of centre form external mold, has guaranteed the off-the-shelf quality of concrete placement back beam body, has the positive effect for the popularization and the development of stub method RC precast box roof beam construction method.

Description

Adjustable supporting system for bridge steel mould

Technical Field

The utility model relates to a support bridge steel mould technical field, especially relate to an adjustable braced system for bridge steel mould.

Background

The bridge girder is usually constructed by one of a long line method and a short line method, the long line method is usually used for a bridge structure with little change of a horizontal curve, the bridge girder is arranged on a prefabricated pedestal with the same span length and moves forwards through a side mold and an inner mold, and a section cast in the previous section is used as an end mold for casting the next section.

Because the problem that the long pedestal and the template support are obviously interfered by a long line method is solved, the construction of the main beam of the bridge is usually carried out by a short line method. The short-line method realizes the pouring of the beam body sections through the combined template bracket of the trolley, the bottom die, the inner die, the side die and the end die. Compared with a long-line method, the short-line method can realize pouring of different sections by adjusting the inner die, the side die and the bottom die, and can better meet the construction of a bridge with a certain curve section in the transverse direction and the longitudinal direction. The principle of the short line method is that firstly, a bottom die trolley is erected, the bottom die trolley can be provided with a translation and jacking jack, then a side die is erected and fixed, generally, the side die can be provided with a lifting hydraulic device, then a reinforcement cage is hoisted, and finally concrete pouring can be carried out by moving a foldable and retractable inner die into the side die.

Because the bottom die of the short-wire method is short in length, it is very important to accurately position the bottom die between the two segments and determine the accurate position of the inner die. In the technical specification requirement, the measuring towers are required to be arranged at the two ends of the pedestal to detect the whole construction pouring process. The whole template system is adjusted through the result after the fine measurement processing, and how to ensure the accuracy of the adjustment of the inner template and the outer template becomes a critical problem.

Compared with a long-line method, the short-line method construction technology has the advantages of small occupied area, high quality, high safety, long construction time and the like, but has high construction precision requirement so as to meet the precision requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the adjustable braced system who is used for bridge steel mould that proposes realizes the fine-tuning of centre form external mold through the template system of many hydraulic cylinders and gear combination, has guaranteed the off-the-shelf quality of concrete placement back beam body, has the positive effect for the popularization and the development of stub method RC precast box girder construction method.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable supporting system for a bridge steel mould comprises a pedestal, a bottom mould, an end mould, side moulds and an inner mould, wherein the outer walls of two sides of the pedestal are connected with side mould bent frames through fixing bolts, flange baffle supports are fixed on the outer sides of the side mould bent frames, and a working platform is fixed on the flange baffle supports;

the bottom die is fixed to the top of the pedestal through a vertical hydraulic support rod of the bottom die, the side die is formed by splicing a web side die and a wing plate die, and the side die is lapped on the side die bent frame;

the bottom of each of the pedestal and the side formwork bent frame is connected with a beam moving slideway, and the top of the beam moving slideway is fixed with a bottom formwork transverse hydraulic support rod;

the main body frame of centre form comprises two standard blocks, two dysmorphism pieces, the both ends of two dysmorphism pieces are connected with two standard blocks respectively, and be provided with adjustable bearing structure in the main body frame, adjustable bearing structure includes the centre form crossbeam that sets up along the steel mould cross section and the centre form longeron of perpendicular to centre form crossbeam, centre form removal support, centre form bracing, sliding beam, centre form rotation hydraulic pressure vaulting pole, gear trimming system, the horizontal hydraulic pressure vaulting pole of centre form, roof die block, the vertical hydraulic pressure vaulting pole of centre form, centre form bottom plate, interior web side form, move roof beam platform truck and centre form removal frame.

Preferably, the side mould bent is a ladder-shaped structure formed by hinging a plurality of side mould pull rods.

Preferably, the two ends of the inner die moving support are hinged with inner die rotating hydraulic support rods through gear fine adjustment systems, and the two inner die rotating hydraulic support rods are hinged with the two inner web side dies through support rod inner die fixing hinges respectively.

Preferably, both ends of the top of the inner mold moving support are connected with both ends of the standard block at the top through inner mold vertical hydraulic support rods, and both ends of the inner mold moving support are connected with both ends of the standard block at the bottom through inner mold inclined supports.

Preferably, both sides of the top of the inner die cross beam are fixed with sliding beams, and the two sliding beams are respectively hinged with the special-shaped block.

Preferably, the two ends of the bottom of the inner mold moving support are respectively fixed with a beam moving trolley and an inner mold moving frame.

The beneficial effects of the utility model are that:

1. and two sets of movable bottom dies and supporting platforms are arranged at each pedestal and are respectively used for matching the beam section and the section to be poured, and the beam section and the section to be poured are mutually exchanged. The bottom die pedestal is provided with vertical and horizontal hydraulic jacks, wherein each jacking cylinder, each translation cylinder, each traveling cylinder and each rotating cylinder are arranged on the bottom die pedestal, a beam section can be rotated horizontally and vertically by rotating a hydraulic support rod, the horizontal cylinder adjusts the horizontal movement of the beam section, the vertical hydraulic cylinder has a self-locking function, and the whole system can be used for adjusting the three-dimensional positions of the bottom die and the matched beam section;

2. the side formwork panel is supported on the support structure, the support is provided with a spiral adjusting system, two sets of hydraulic systems and fine adjusting systems are arranged below each side support and used for mounting, dismounting and fine adjusting the formwork, the side formwork panel can rotate around a hinge arranged at the bottom along a shaft, tight combination of the side formwork and a concrete matching beam section is guaranteed, mounting and dismounting of the formwork are facilitated, and the large truss structure is arranged on the outer side of the wing plate formwork, so that rigidity and stability of the whole structure are guaranteed.

To sum up, the utility model discloses a template system of many hydraulic cylinders and gear combination realizes the regulation that becomes more meticulous of centre form external mold, has guaranteed the off-the-shelf quality of concrete placement back beam body, has the positive effect for the popularization and the development of the prefabricated case roof beam construction method of stub method RC.

Drawings

Fig. 1 is a schematic view of a bottom die, a trolley and a side die mounting structure of an adjustable support system for a bridge steel die provided by the present invention;

fig. 2 is a schematic view of an internal mold front view structure of an adjustable support system for a bridge steel mold according to the present invention;

fig. 3 is a schematic diagram of an internal mold profile structure of an adjustable support system for a bridge steel mold according to the present invention;

fig. 4 is the utility model provides an enlarged schematic structure of centre form fine setting system for adjustable braced system of bridge steel mould.

In the figure: 1. the side mold rotates the hydraulic stay bar; 2. a bottom die transverse hydraulic support rod; 3. a bottom die vertical hydraulic support rod; 4. a pedestal; 5. bottom die; 6. a beam moving slideway; 7. a side form tie rod; 8. side-form bent frames; 9. a work table; 10. a flange baffle bracket; 11. a web side mold; 12. a fin plate mold; 13. fixing the bolt; 14. the internal mold rotates the hydraulic stay bar; 15. a gear fine-tuning system; 16. a sliding beam; 17. an internal mold transverse hydraulic support rod; 18. a top plate and a bottom plate; 19. an internal mold vertical hydraulic stay bar; 20. an inner mold cross beam; 21. an inner mold stringer; 22. an inner mold moving support; 23. an inner mold diagonal bracing; 24. an inner mold bottom plate; 25. a special-shaped block; 26. a standard block; 27. an inner web side die; 28. A beam moving trolley; 29. pouring concrete matching beam sections; 30. end die; 31. an inner mold moving frame; 32. The stay bar internal mold is fixedly hinged; 33. and (4) a pulley block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Embodiment 1, refer to fig. 1, an adjustable support system for a bridge steel mold comprises a pedestal 4, a bottom mold 5, an end mold 30, side molds and an inner mold, wherein outer walls of two sides of the pedestal 4 are connected with side mold bent frames 8 through fixing bolts 13, flange baffle supports 10 are fixed on outer sides of the side mold bent frames 8, a workbench 9 is fixed on the flange baffle supports 10, the bottom mold 5 is fixed on the top of the pedestal 4 through bottom mold vertical hydraulic support rods 3, the side molds are formed by splicing web side molds 11 and lap joint molds 12, the side molds are arranged on the side mold bent frames 8, the side mold bent frames 8 are hinged through a plurality of side mold pull rods 7 to form a ladder-shaped structure, the bottoms of the pedestal 4 and the side mold bent frames 8 are connected with beam moving slide ways 6, bottom mold transverse hydraulic support rods 2 are fixed on the tops of the beam moving slide ways 6, the bottom mold 5 is connected with the side molds 11 and the fixed end mold 30 and fixed, two sets of movable bottom molds and support platforms 28 are arranged at positions of each pedestal 4 and used for matching beam sections and mutual exchange between the beam sections. The bottom die pedestal is provided with 10 vertical and horizontal hydraulic jacks, wherein 4 jacking cylinders, 2 translation cylinders, 2 walking cylinders and 2 rotating cylinders are arranged on the bottom die pedestal, a beam section can be rotated horizontally and vertically by rotating the hydraulic support rod 1, the horizontal cylinder 2 adjusts the horizontal movement of the beam section, the vertical hydraulic cylinder 3 has a self-locking function, and the whole system can be used for adjusting the three-dimensional positions of the bottom die and the matched beam section;

in embodiment 2, referring to fig. 2-3, a main frame of an inner mold is composed of two standard blocks 26 and two special-shaped blocks 25, two ends of each of the two special-shaped blocks 25 are respectively connected to the two standard blocks 26, an adjustable support structure is arranged in the main frame, the adjustable support structure includes an inner mold cross beam 20 arranged along a cross section of a steel mold, an inner mold longitudinal beam 21 perpendicular to the inner mold cross beam 20, an inner mold moving support 22, an inner mold diagonal support 23, a sliding beam 16, an inner mold rotating hydraulic support rod 14, a gear fine adjustment system 15, an inner mold transverse hydraulic support rod 17, a top plate bottom mold 18, an inner mold vertical hydraulic support rod 19, an inner mold bottom plate 24, inner web side molds 27, a beam moving trolley 28 and an inner mold moving support 31, two ends of the inner mold moving support 22 are all hinged to the inner mold rotating hydraulic support rod 14 through the gear fine adjustment system 15, the two inner mold rotating hydraulic support rods 14 are respectively hinged to the two inner web side molds 27 through inner mold support rod fixing hinges 32, two ends of the top of the inner mold moving support 22 are both connected to two ends of the standard blocks 26 at the top through the vertical hydraulic support rods 19, two ends of the inner mold moving support 22 are both connected to the standard blocks 26 at the bottom through the diagonal support rods, two ends of the inner mold moving support 22 are respectively hinged to the standard blocks 20, two ends of the sliding beam moving support frames 16, and two sliding supports are respectively connected to the sliding beam moving support 20, two sliding tables 16, and the sliding tables 16 are respectively connected to the sliding tables 16;

in order to adapt to the change of the sizes of the inner cavities of the sections of the main girder of the bridge, the inner die is provided with an adjusting block, the combined template is divided into a standard block 26 and a special-shaped block 25, and the combination is carried out according to the prefabrication requirements of the sections. The internal mold mainly comprises a top plate bottom die 18, an internal web plate side die 27 and an internal mold bottom plate 24, an internal mold rotating hydraulic support rod 14, a gear fine adjustment system 15, an internal mold transverse hydraulic support rod 17 and an internal mold vertical hydraulic support rod 19 are adopted among the templates, the whole internal mold system is fixed on a sliding beam 16, vertical direction stretching and transverse opening and closing can be completed by a hydraulic system, and the internal mold stretches into and out through a special trolley 28. The gear fine-tuning system 15 can realize fine adjustment of consistency of two ends of the web side die, and the specific implementation method is that a large gear is driven to advance through movement of the adjustable support rod, meanwhile, the small gear is driven to rotate by a corresponding small angle through rotation of the large gear, a cross beam in the middle of the movable support is driven to move together through the rotation of the large gear, and the gear and the pulley block are connected through a tie rod. When concrete is poured, the horizontal stay bar 17 resists the lateral pressure generated by the web plate; part of the vertical forces generated for the construction roof are then transmitted by the support structure 19 to the skid beams 20.

The working principle is as follows: checking an end die 30 through a measuring instrument, matching the beam position and adjusting and positioning, adjusting a bottom die 5 and a lengthening section thereof, ensuring the firmness of fixing the support, tightly connecting the end die 30, closely fitting the bottom surface of the matched beam, adjusting the position of a side die and fixing the side die, tightly and firmly connecting the end die with the end die 30, tightly connecting the top of the bottom die 5, after the above procedures are correct, hoisting a beam section steel reinforcement framework to enter a template and position, sending the adjustable inner die through a sliding trolley, opening 23 support legs of an inner die inclined strut to position, simultaneously starting a hydraulic system to accurately adjust and position so as to complete the installation of the inner die, pouring concrete after the inspection is qualified, matching an attached vibrator and an inserted vibrator during pouring, and performing the die removal work after an external concrete test block reaches the strength: firstly, removing the internal mold, starting the hydraulic system to withdraw the internal mold, and enabling the internal mold beam moving trolley 28 to move and withdraw the box girder body; dismantling the flange baffle; and (4) removing the side die and removing the vertical support of the bottom die.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An adjustable supporting system for a bridge steel die comprises a pedestal (4), a bottom die (5), an end die (30), side dies and an inner die, and is characterized in that the outer walls of two sides of the pedestal (4) are connected with side die bent frames (8) through fixing bolts (13), flange baffle supports (10) are fixed on the outer sides of the side die bent frames (8), and a workbench (9) is fixed on the flange baffle supports (10);

the bottom die (5) is fixed to the top of the pedestal (4) through a bottom die vertical hydraulic support rod (3), the side die is formed by splicing a web side die (11) and a wing plate die (12), and the side die is lapped on the side die bent frame (8);

the bottoms of the pedestal (4) and the side die bent frames (8) are connected with a beam moving slideway (6), and the top of the beam moving slideway (6) is fixed with a bottom die transverse hydraulic support rod (2);

the main body frame of centre form comprises two standard blocks (26), two dysmorphism blocks (25), the both ends of two dysmorphism blocks (25) are connected with two standard blocks (26) respectively, and be provided with adjustable bearing structure in the main body frame, adjustable bearing structure includes centre form crossbeam (20) and centre form longeron (21) of perpendicular to centre form crossbeam (20) that set up along the steel mould cross section, centre form removal support (22), centre form bracing (23), smooth roof beam (16), centre form rotation hydraulic pressure vaulting pole (14), gear trimming system (15), the horizontal hydraulic pressure vaulting pole of centre form (17), roof die block (18), the vertical hydraulic pressure vaulting pole of centre form (19), centre form bottom plate (24), interior web side form (27), move roof beam trolley (28) and centre form removal frame (31).

2. The adjustable support system for bridge steel forms of claim 1, wherein the side form bent (8) is hinged by a plurality of side form tie rods (7) to form a ladder-shaped structure.

3. The adjustable supporting system for the bridge steel die is characterized in that two ends of the inner die moving support (22) are hinged to inner die rotating hydraulic supporting rods (14) through a gear fine adjustment system (15), and the two inner die rotating hydraulic supporting rods (14) are hinged to the two inner web side dies (27) through supporting rod inner die fixing hinges (32) respectively.

4. The adjustable supporting system for the bridge steel die is characterized in that two ends of the top of the inner die moving support (22) are connected with two ends of a standard block (26) at the top through inner die vertical hydraulic supporting rods (19), and two ends of the inner die moving support (22) are connected with two ends of a standard block (26) at the bottom through inner die inclined supports (23).

5. The adjustable support system for bridge steel dies according to claim 1, characterized in that the top of the inner die cross beam (20) is fixed with sliding beams (16) on both sides, and the two sliding beams (16) are hinged with the profiled block (25) respectively.

6. The adjustable supporting system for the bridge steel mold as claimed in claim 1, wherein a beam moving trolley (28) and an inner mold moving frame (31) are respectively fixed at two ends of the bottom of the inner mold moving support (22).

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