Supporting device in steel box girder incremental launching construction

Abstract

The utility model relates to the technical field of steel box girders, in particular to a supporting device in steel box girder incremental launching construction, which comprises a base plate, bearing assemblies are arranged above the base plate, each bearing assembly comprises a cross beam, an inclined column and a vertical column, a plurality of groups of bearing assemblies are arranged, and the bearing assemblies are distributed at equal intervals along the longitudinal position of the base plate. The lower end of the beam and the surface of the substrate are fixedly assembled through bolts. In order to adjust the butt joint space of the steel box girders when the steel box girders are in butt joint, the steel box girders are moved to the position above the supporting plate through the hoisting structure and erected on the supporting rollers, the steel box girders can move left and right on the supporting rollers through the rotating effect of the supporting rollers, the steel box girders can move front and back through sliding of the sliding seats on the sliding rails, and the steel box girders can move back and forth. Therefore, after hoisting, when a butt joint error exists between the steel box girder and the adjacent butt joint position, supporting adjustment is carried out, and small-range movement of the steel box girder can be achieved in a pushing mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel box girder technical field especially relates to a supporting device in steel box girder incremental launching construction. BACKGROUND

[0002] Steel box girder is a common bridge structure form, is widely used in modern bridge engineering. It is composed of steel plate and reinforced concrete, has high strength, durability and good wind resistance.

[0003] The advantages of steel box girder include:

[0004] High strength: steel has high strength and stiffness, can bear larger load;

[0005] Good durability: steel has good corrosion resistance and wear resistance, long service life;

[0006] Fast construction speed: steel is easy to process and install, short construction period;

[0007] Good wind resistance: steel box girder has good aerodynamic performance, can effectively resist wind load;

[0008] In steel box girder incremental launching construction, supporting device is one of the key components, which is mainly used for supporting and guiding the movement of steel box girder during incremental launching.

[0009] At present, in order to ensure the butt joint fine adjustment between steel box girder and adjacent structure during installation, it is necessary to load through the receiving part after hoisting to the specified position, and then adjust the spacing butt joint space according to the position of the adjacent part, so a supporting structure is needed to adjust the front, back, left, right and up and down positions of the steel box girder during installation, so as to meet the installation requirements. UTILITY MODEL CONTENTS

[0010] The utility model aims at solving the above-mentioned shortcomings in the prior art and provides a supporting device in steel box girder incremental launching construction.

[0011] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0012] A supporting device in steel box girder incremental launching construction is designed, which comprises a base plate, a bearing assembly is arranged above the base plate, the bearing assembly comprises a cross beam, an inclined column and a vertical column, the bearing assembly is provided with several groups, and the bearing assemblies are arranged at equal intervals along the longitudinal position of the base plate, the lower end of the cross beam is fixedly assembled with the surface of the base plate through bolts, the inclined columns are symmetrically arranged along the two sides of the cross beam, the lower end of the inclined column is fixedly welded with the surface of the cross beam, the vertical columns are arranged at equal intervals along the surface of the cross beam, and the lower end of the vertical column is fixedly welded with the surface of the cross beam.

[0013] The upper end of the inclined column and the upper end of the vertical column are provided with the same support plate, the support plate is welded and fixed with the end of the inclined column and the end of the vertical column, the upper end of the support plate is respectively provided with a plurality of longitudinal beams, the adjacent longitudinal beams are equidistantly arranged, the upper end of the longitudinal beam is provided with a sliding rail, the lower end of the sliding rail is fixed with the surface of the longitudinal beam through screws, the surface of the sliding rail is slidably provided with a sliding seat, the upper end of the sliding seat is rollingly provided with a support roller, and the front and rear ends of the sliding rail are respectively provided with anti-disengagement plates.

[0014] In detail, the cross beam and the longitudinal beam are both of I-shaped structure.

[0015] In detail, the lower end of the base plate is provided with a plurality of hydraulic cylinders, the hydraulic cylinders are arranged in a matrix structure, the inside of the hydraulic cylinder is provided with a piston rod for extension and retraction, and the end of the piston rod is fixed with the lower surface of the base plate through screws.

[0016] In detail, the lower end of the hydraulic cylinder is provided with a bottom plate, and the surface of the bottom plate is fixedly assembled with the tail of the hydraulic cylinder through screws.

[0017] In detail, the inner side of the sliding seat is provided with a plurality of ball grooves, the inside of the ball groove is rollingly provided with a ball bearing, the ball bearing is made of solid stainless steel material, and the ball bearing is in rolling contact with the surface of the sliding rail.

[0018] In detail, the upper end of the sliding seat is provided with an embedded groove, the inner walls of the embedded groove are provided with shaft seats on both sides, and one shaft rod is rotatably connected between the two shaft seats.

[0019] In detail, the surface of the shaft rod is penetratingly arranged with the inside of the support roller, and the connection part of the shaft rod and the support roller is fixedly connected through bolts, and the support roller is made of solid stainless steel material.

[0020] The design scheme of the utility model has the beneficial effects in the application process:

[0021] 1. In order to adjust the butt joint space when the steel box girder is butt jointed, the steel box girder is moved to the upper side of the support plate through the hoisting structure and is erected on the support roller, the steel box girder can be moved left and right on the support roller through the rotating effect of the support roller, the steel box girder can be moved forward and backward through the sliding of the sliding seat on the sliding rail, and therefore, when the steel box girder and the adjacent butt joint position have butt joint errors after hoisting, the support adjustment can be carried out, and the small-range movement of the steel box girder can be realized through the pushing mode.

[0022] 2. The vertical support component of the load-bearing structure formed by the inclined column and the vertical column can assist in supporting the support plate in cooperation with the base plate, thereby ensuring the stable load bearing of the steel box girder, and the hydraulic cylinders for height jacking are arranged below the base plate, and the up-down movement adjustment operation after the load bearing of the steel box girder can be realized through the extension and retraction of the piston rods. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the distribution of the inclined column and the vertical column of the utility model;

[0025] Figure 3 It is a schematic diagram of the distribution of the ball of the utility model;

[0026] Figure 4 It is a schematic diagram of the distribution of the support roller of the utility model.

[0027] In the figure: 1, base plate; 11, cross beam; 12, inclined column; 13, vertical column; 14, longitudinal beam; 15, slide rail; 16, slide; 17, support roller; 18, anti-dropping plate; 19, support plate; 2, hydraulic cylinder; 21, bottom plate; 3, ball groove; 31, ball; 4, built-in groove; 41, shaft seat; 42, shaft rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] REFERENCE Figures 1-4 A supporting device in steel box girder jacking construction, comprising a base plate 1, a load-bearing assembly is arranged above the base plate 1, the load-bearing assembly comprises a cross beam 11, an inclined column 12 and a vertical column 13, the load-bearing assembly is provided with several groups, and the load-bearing assemblies are arranged at equal intervals along the longitudinal position of the base plate 1, the lower end of the cross beam 11 is fixedly assembled to the surface of the base plate 1, the inclined columns 12 are symmetrically arranged along the two sides of the cross beam 11, the lower end of the inclined column 12 is fixedly welded to the surface of the cross beam 11, the vertical columns 13 are arranged at equal intervals along the surface of the cross beam 11, and the lower end of the vertical column 13 is fixedly welded to the surface of the cross beam 11.

[0030] The upper end of the inclined column 12 and the upper end of the vertical column 13 are provided with the same support plate 19, which is welded and fixed with the end of the inclined column 12 and the end of the vertical column 13, and the upper end of the support plate 19 is respectively provided with a plurality of longitudinal beams 14, which are equidistantly arranged between adjacent longitudinal beams 14, and the upper end of the longitudinal beam 14 is provided with a sliding rail 15, the lower end of the sliding rail 15 is fixed with the surface of the longitudinal beam 14 by screws, the surface of the sliding rail 15 is slidably provided with a sliding seat 16, the upper end of the sliding seat 16 is rollingly provided with a supporting roller 17, and the front and rear ends of the sliding rail 15 are respectively provided with anti-dropping plates 18, which are fixedly assembled with the ends of the sliding rail 15 by bolts.

[0031] It should be further explained that the cross beam 11 and the longitudinal beam 14 are both of I-shaped structure, the transition of the inclined column 12 and the vertical column 13 can be achieved by the arrangement of the cross beam 11, and the transition of the sliding rail 15 can be achieved by the arrangement of the longitudinal beam 14.

[0032] It should be further explained that the lower end of the base plate 1 is provided with a plurality of hydraulic cylinders 2, which are arranged in a matrix structure, the inside of the hydraulic cylinder 2 is provided with a piston rod for extension and retraction, the end of the piston rod is fixed with the lower surface of the base plate 1 by screws, and the height position of the steel box girder can be pushed by the extension and retraction of the piston rod of the hydraulic cylinder 2.

[0033] It should be further explained that the lower end of the hydraulic cylinder 2 is provided with a bottom plate 21, and the surface of the bottom plate 21 is fixedly assembled with the tail of the hydraulic cylinder 2 by screws.

[0034] It should be further explained that the inner side of the sliding seat 16 is provided with a plurality of ball grooves 3, the inside of the ball groove 3 is rollingly provided with a ball 31, the ball 31 is made of solid stainless steel material, the ball 31 is in rolling contact with the surface of the sliding rail 15, and when the steel box girder is pressed down, the sliding seat 16 and the sliding rail 15 bear, and because the weight of the steel box girder is too large, if the ball 31 is not used to reduce the sliding friction, it is difficult to make the sliding seat 16 slide relative to the sliding rail 15.

[0035] It should be further explained that the upper end of the sliding seat 16 is provided with an embedded groove 4, the inner walls of the embedded groove 4 are provided with shaft seats 41 on both sides, and a same shaft rod 42 is rotatably connected between the two shaft seats 41, and the arrangement of the shaft seat 41 can ensure the stable rotation of the shaft rod 42.

[0036] It should be further explained that the surface of the shaft rod 42 is penetratingly provided with the inside of the supporting roller 17, and the connection part of the two is fixedly connected by bolts, and the supporting roller 17 is made of solid stainless steel material.

[0037] Working mode: in order to be able to butt joint when steel box girder, can adjust its butt joint space, through hoisting structure will be steel box girder to the upper of support plate 19, and erect on support roller 17, through the rotation effect of support roller 17, make steel box girder can move left and right on support roller 17, through sliding seat 16 on slide rail 15 sliding, can realize the front and back movement of steel box girder, so that, after hoisting, steel box girder and adjacent butt joint position exist butt joint error, support adjustment, through the way of pushing, can realize the small range movement of steel box girder;

[0038] The vertical support component of the load bearing structure formed by the inclined column 12 and the vertical column 13 can assist in supporting the support plate 19 in cooperation with the base plate 1, thereby ensuring the stable load bearing of the steel box girder. The hydraulic cylinders 2 for height jacking are arranged below the base plate 1, and the extension and retraction of the piston rods of the hydraulic cylinders 2 can realize the up and down movement adjustment operation of the steel box girder after being loaded.

[0039] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A supporting device in the incremental launching construction of a steel box girder, comprising a base plate (1), characterized in that: The upper side of the substrate (1) is provided with a bearing assembly, which comprises a crossbeam (11), an inclined column (12) and a vertical column (13), the bearing assembly is provided with several groups, and the bearing assembly is arranged at equal intervals along the longitudinal position of the substrate (1), the lower end of the crossbeam (11) is fixedly assembled with the surface of the substrate (1) through bolts, the inclined column (12) is arranged symmetrically along the two sides of the crossbeam (11), the lower end of the inclined column (12) is welded and fixed with the surface of the crossbeam (11), and the vertical column (13) is arranged at equal intervals along the surface of the crossbeam (11), and the lower end of the vertical column (13) is welded and fixed with the surface of the crossbeam (11). The upper end of the inclined column (12) and the upper end of the vertical column (13) are provided with the same support plate (19), the support plate (19) is welded and fixed with the end of the inclined column (12) and the end of the vertical column (13), the upper end of the support plate (19) is provided with a plurality of longitudinal beams (14), the adjacent longitudinal beams (14) are arranged at equal intervals, the upper end of the longitudinal beam (14) is provided with a sliding rail (15), the lower end of the sliding rail (15) is fixedly connected with the surface of the longitudinal beam (14) through screws, the surface of the sliding rail (15) is slidably provided with a sliding seat (16), the upper end of the sliding seat (16) is rotatably provided with a supporting roller (17), and the front and rear ends of the sliding rail (15) are respectively provided with anti-disengagement plates (18) which are fixedly connected with the ends of the sliding rail (15) through bolts.

2. The supporting device for steel box girder in incremental launching construction according to claim 1, characterized in that: The crossbeam (11) and the longitudinal beam (14) are both of I-shaped structure.

3. The supporting device for steel box girder in incremental launching construction according to claim 1, characterized in that: The lower end of the substrate (1) is provided with a plurality of hydraulic cylinders (2), the hydraulic cylinders (2) are arranged in a matrix structure, and the inside of the hydraulic cylinder (2) is provided with a piston rod for extension and retraction, and the end of the piston rod is fixedly connected with the lower surface of the substrate (1) through screws.

4. The supporting device for steel box girder in incremental launching construction according to claim 3, characterized in that: The lower end of the hydraulic cylinder (2) is provided with a bottom plate (21), and the surface of the bottom plate (21) is fixedly connected with the tail of the hydraulic cylinder (2) through screws.

5. The supporting device for steel box girder in incremental launching construction according to claim 4, characterized in that: The inner side of the sliding seat (16) is provided with a plurality of ball grooves (3), the inside of the ball groove (3) is rotatably provided with a ball (31), the ball (31) is made of solid stainless steel material, and the ball (31) is in rolling contact with the surface of the sliding rail (15).

6. The supporting device for steel box girder in incremental launching construction according to claim 5, characterized in that: The upper end of the sliding seat (16) is provided with an embedded groove (4), the inner walls of the embedded groove (4) are provided with shaft seats (41) on both sides, and one shaft rod (42) is rotatably connected between the two shaft seats (41).

7. The supporting device for steel box girder in incremental launching construction according to claim 6, characterized in that: The surface of the shaft rod (42) is penetratingly arranged with the inside of the supporting roller (17), and the connection parts of the two are fixedly connected through bolts, and the supporting roller (17) is made of solid stainless steel material.

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