A precise positioning device for corrugated steel webs

By combining construction templates, limiting structures, and hinge support mechanisms, and utilizing positioning mechanisms and cylinder roller assemblies, precise positioning of corrugated steel web plates is achieved, solving the problem of difficult positioning when corrugated steel web plates are arranged at an angle in the existing technology, and improving the adaptability and accuracy of positioning.

CN115821755BActive Publication Date: 2026-05-055TH ENGINEERING LTD OF THE FIRST HIGHWAY ENGINEERING BUREAU CCCC +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
5TH ENGINEERING LTD OF THE FIRST HIGHWAY ENGINEERING BUREAU CCCC
Filing Date
2022-11-07
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing technologies lack a more universal and precise method for positioning corrugated steel webs, especially when the arrangement is tilted, which requires a large number of positioning rods and beams, making it difficult to achieve accurate calibration.

Method used

The system employs a combination of construction template, limiting structure, hinge support mechanism, and positioning mechanism. The corrugated steel web is precisely positioned by the wing section of the construction template and the supporting wall. The positioning mechanism and hinge support mechanism are linked and adjusted together, and the cylinder and roller assembly are used to achieve precise positioning.

Benefits of technology

It achieves precise positioning in both vertical and inclined layouts, is more adaptable, and can be flexibly adjusted in combined construction, thus improving the accuracy and efficiency of positioning.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of bridge construction technology, and in particular to a precise positioning device for corrugated steel webs, solving the technical problem that existing technologies do not provide a more universal and adaptable method for precise positioning. Specifically, the positioning mechanism is arranged on the wing portion of a set of construction templates and can move laterally along the template. The positioning mechanism has a set of positioning ends, which can move a preset distance toward the flange of the first end of the corrugated steel web. When the positioning end contacts the flange, it can change from one positioning point to two positioning points, and the two positioning points can be located on the centerline of the flange. The advantage of this technical solution is that it allows for more flexible arrangement of corrugated steel webs within the applicable range of precise positioning, especially in situations involving combined construction or construction combined with other top structures requiring adjustments to the arrangement angle.
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Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a precise positioning device for corrugated steel webs. Background Technology

[0002] In existing technologies, corrugated steel webs serve as a construction alternative for prestressed concrete box girder bridges. Their advantages lie in the fact that the bridge structure, combining a prestressed concrete continuous box girder with a reinforced concrete upper-bearing box girder, can adapt to large-span, long-distance bridge construction projects. Furthermore, corrugated steel plates offer superior shear buckling strength compared to flat steel plates, making them particularly suitable for combined structural construction with other bridge components. However, current construction methods involve both vertical and inclined arrangements of the corrugated steel webs to meet project requirements. For positioning in combined construction, vertical arrangements are generally preferred, while inclined arrangements require the erection of numerous positioning rods and beams. Construction calibration is also typically designed separately based on specific conditions. Currently, existing technologies do not offer a more universal and adaptable method for precise positioning. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned technical problems in the prior art and provides a precise positioning device for corrugated steel web.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] A precision positioning device for corrugated steel web plates, comprising:

[0006] The construction formwork is arranged on both sides of the bridge base slab.

[0007] The construction templates are arranged in an open state, symmetrically with respect to the center of the bridge base plate.

[0008] The construction template has a wing portion parallel to the bottom plate of the construction bridge and a supporting wall extending toward the bottom plate of the construction bridge;

[0009] Auxiliary construction scaffolding can be erected below the wing section;

[0010] The corrugated steel web can be attached to the support wall surface, and the first end of the corrugated steel web can be supported on a limiting structure;

[0011] A hinge support mechanism can be prefabricated between the corrugated steel webs, and the support mechanism is used to adjust the distance between the corrugated steel webs.

[0012] A positioning mechanism is arranged on the wing portion of a set of construction templates and can move along the lateral direction of the construction templates. The positioning mechanism has a set of positioning ends. The positioning ends can move a preset distance toward the flange of the first end of the corrugated steel web. When the positioning ends contact the flange, they can change from one positioning point to two positioning points, and the two positioning points can be located on the center line of the flange.

[0013] Preferably, the corrugated steel web is placed in such a way that the corrugated steel web is perpendicular to the limiting structure, and the lower flange of the corrugated steel web can be engaged with the limiting structure.

[0014] Preferably, the corrugated steel web is placed in such a way that the corrugated steel web maintains an inclined angle with the limiting structure, and the lower flange of the corrugated steel web can be engaged with the limiting structure.

[0015] Preferably, the limiting structure includes:

[0016] The protruding end is able to abut against the lower flange;

[0017] The support end is connected below the protruding end and can be detachably mounted on the construction bridge base plate and arranged adjacent to the support wall.

[0018] Preferably, the limiting structure includes:

[0019] The protruding end is able to abut against the lower flange;

[0020] The support end is detachably mounted on the bottom plate of the construction bridge and is arranged adjacent to the support wall.

[0021] The protruding end has a preset tilt angle, which is the same as the tilt angle of the supporting wall.

[0022] The protruding end is connected to a support member, which has an extension in an inclined direction. The extension is provided with a plurality of positioning screw holes, into which positioning bolts can be inserted.

[0023] Preferably, the hinge support mechanism includes:

[0024] Two hinge rods connected by a cross-shaped hinge;

[0025] Each of the hinge rods includes:

[0026] Main shaft;

[0027] An inner tube can be installed at the first end of the main rod.

[0028] The inner tube is provided with an arc-shaped slide rail;

[0029] A locking part is provided at the first end of the main rod body, and a toggle limiting member is rotatably provided on the locking part;

[0030] The locking part is connected to the radial direction of the main rod and forms a limiting space with the arc-shaped slide. A semi-cylindrical part is arranged in the limiting space, and the two ends of the semi-cylindrical part are limited in the locking part.

[0031] The actuating shaft of the actuating limiter is eccentrically disposed on the locking part so that when it is locked, the actuating shaft presses against the semi-cylindrical part, thereby enabling the main rod and the inner tube to form a lock.

[0032] Preferably, the second end of the main pole can be fixedly connected to the bottom plate of the construction bridge;

[0033] The first end of the inner tube is provided with a first rotating hinge, and a locking ring is provided on the first rotating hinge. The locking ring can be prefabricated and connected to the connection node of the corrugated steel web.

[0034] A hinge hole is provided in the middle of the main rod, and a hinge shaft is connected in the hinge hole.

[0035] Preferably, the side of the corrugated steel web facing the auxiliary construction scaffold can be connected to an adjusting ring, and a wire rope can be prefabricated on the adjusting ring so that the wire rope can be pulled by an electric hoist pre-arranged in the direction of the auxiliary construction scaffold.

[0036] Preferably, the positioning mechanism includes:

[0037] A track is prefabricated and installed above the wing section, and the track is arranged along the length of the wing section.

[0038] The track cabinet is connected to a work vehicle;

[0039] The work vehicle has a fixed plate, and the wing section is provided with a locking hole;

[0040] A locking stud is provided, which can be screwed onto the fixing plate and the corresponding locking hole, so that the work vehicle can be locked in a preset position and fixed to the wing section.

[0041] Preferably, each of the positioning mechanisms further includes two positioning components, the positioning components comprising:

[0042] A positioning part fixedly connected above the fixing plate;

[0043] A first working cylinder and a second working cylinder are provided on one side of the positioning part.

[0044] Under extreme conditions, the first working cylinder and the second working cylinder are arranged in a triangle, and the extension lines of their output ends intersect.

[0045] The second working cylinder is arranged at an angle;

[0046] The output ends of the first working cylinder and the second working cylinder are respectively rotatably connected to a cylinder connecting plate;

[0047] A positioning cylinder, one side of which is fixed to the cylinder connecting plate;

[0048] The first end of the positioning cylinder is connected to a positioning housing;

[0049] The positioning housing is open on both sides and at the bottom;

[0050] A positioning roller assembly is rotatably connected inside the positioning housing;

[0051] The positioning roller assembly includes:

[0052] A roller shaft with a torsion spring is rotatably connected to the positioning housing;

[0053] The first connecting shaft arm and the second connecting shaft arm are connected to the roller shaft;

[0054] The first connecting shaft arm and the second connecting shaft arm are arranged at an angle of 10 degrees, and in the prefabricated state, the first connecting shaft arm forms an angle of 10 degrees with the prefabricated axis, and the second connecting shaft arm forms an angle of 10 degrees with the prefabricated axis.

[0055] The first connecting shaft arm and the second connecting shaft arm are connected to rotatable roller portions with inflatable tires at their ends away from the roller shaft.

[0056] The present invention has the following beneficial effects:

[0057] The advantage of this technical solution is that the arrangement of the corrugated steel web is more flexible within the scope of precise positioning, especially in situations where the arrangement angle needs to be adjusted when facing combined construction or construction combined with other top structures. Attached Figure Description

[0058] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0059] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0060] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0061] Figure 3 This is a schematic diagram of the limiting structure according to Embodiment 1 of the present invention;

[0062] Figure 4 This is a schematic diagram of the limiting structure in Embodiment 2 of the present invention;

[0063] Figure 5 This is the arrangement of the hinge support mechanism of the present invention;

[0064] Figure 6 The extension and retraction method of the hinge support mechanism of the present invention;

[0065] Figure 7 This is a schematic diagram of the positioning mechanism in Embodiment 2 of the present invention;

[0066] Figure 8 This is a schematic diagram of the positioning mechanism of the present invention.

[0067] The reference numerals in the figure are:

[0068] Construction formwork 10, construction bridge base plate 1, wing section 2, supporting wall 3, corrugated steel web 100;

[0069] Limiting structure 20, support mechanism 30, positioning mechanism 40, positioning end 401;

[0070] Protruding end 21, supporting end 22, supporting component 23, extension 24;

[0071] Hinge support mechanism 30, hinge rod 300;

[0072] Main rod 310, inner tube 320, arc-shaped slide rail 321, locking part 330, toggle limiter 331, semi-cylindrical part 332, locking ring 341, hinge shaft 351;

[0073] Adjusting ring 201, track 410, working carriage 420, locking stud 423, positioning part 430;

[0074] First working cylinder 431, second working cylinder 432;

[0075] Positioning cylinder 440, cylinder connecting plate 433;

[0076] Positioning housing 441;

[0077] Roller shaft 451, first connecting shaft arm 461, second connecting shaft arm 462;

[0078] Roller section 470. Detailed Implementation

[0079] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. It should be noted that, for ease of description, in this application, "left side" is referred to as "first end", "right side" as "second end", "upper side" as "first end", and "lower side" as "second end" in the current view. The purpose of such description is to clearly express the technical solution and should not be construed as an improper limitation of the technical solution of this application.

[0080] The design concept of this technical solution is to accommodate two different arrangements of corrugated steel webs. Another objective is to achieve more precise registration and positioning. For specific technical details, please refer to [link / reference]. Figure 1 , 2 As shown, the corrugated steel web precision positioning device includes: a construction template 10, which is arranged on both sides of the construction bridge base slab 1, so that the opposing construction templates 10 arranged symmetrically with respect to the center of the bridge base slab 1 are in an open state; the construction template 10 is equivalent to a prefabricated module before construction, which will be removed after the pouring is completed. In this design, the construction template 10 has a wing 2 parallel to the construction bridge base slab 1 and a supporting wall 3 extending towards the construction bridge base slab 1; an auxiliary construction scaffold 200 can be built below the wing 2; the supporting wall 3 serves as a rough positioning after the corrugated steel web is hoisted and constructed, because the verticality and inclination of the supporting wall 3 are important. The inclination is prefabricated and serves only as a pre-positioning component. However, in actual construction, verticality and inclination are difficult to control precisely. But the parallelism of the wing section 2 is a technical indicator that is easier to control during construction. Furthermore, in the coarse positioning, the corrugated steel web 100 can fit against the supporting wall 3, and the first end of the corrugated steel web 100 can be supported on a limiting structure 20. A hinge support mechanism 30 can be prefabricated between the corrugated steel webs 100. The hinge support mechanism 30 is used to adjust the distance between the corrugated steel webs 100. The hinge support mechanism 30 enables the corrugated steel webs 100 on both sides to move together during adjustment.

[0081] Specifically, the positioning mechanism 40 is arranged on the wing 2 of a set of construction templates 10 and can move along the lateral direction of the construction templates 10. The positioning mechanism 40 has a set of positioning ends 401, which can move a preset distance towards the flange of the first end of the corrugated steel web 100. When the positioning end 401 contacts the flange, it can change from one positioning point to two positioning points, and the two positioning points can be located on the center line of the flange. The positioning mechanism 40 is the core of precise adjustment. Specifically, the positioning point is registered by configuring a cylinder, and then calibrated by hoisting or pulling rope. The adjustment process of the positioning mechanism 40 on the corrugated steel web 100 and the corrugated steel web 100 connected by its hinge support mechanism 30 means that the positioning mechanism 40 only needs to be arranged on one side of the wing 2. Through the linkage adjustment of the hinge support mechanism 30, the positioning status of the corrugated steel web 100 on both sides can be confirmed.

[0082] In a specific embodiment 1, taking a vertical arrangement as an example, specifically as an appendix Figure 1 The corrugated steel web 100 is positioned such that the corrugated steel web 100 is perpendicular to the limiting structure 20, and the lower flange of the corrugated steel web 100 can be engaged with the limiting structure 20.

[0083] In another specific embodiment 2, taking an inclined arrangement as an example, specifically as an appendix Figure 2 The corrugated steel web 100 is placed in such a way that the corrugated steel web 100 and the limiting structure 20 are at an inclined angle, and the lower flange of the corrugated steel web 100 can be locked onto the limiting structure 20.

[0084] In Example 1, please refer to Figure 3 As shown, the limiting structure 20 includes: a protruding end 21 that can abut against the lower flange; and a supporting end 22 that is connected below the protruding end 21 and can be detachably installed on the construction bridge base plate 1 and arranged adjacent to the supporting wall 3.

[0085] In Example 2, please refer to Figure 4 As shown, the limiting structure 20 includes: a protruding end 21, which can abut against the lower flange; a supporting end 22, which can be detachably installed on the construction bridge base plate 1 and arranged adjacent to the supporting wall 3; the protruding end 21 has a preset tilt angle, which is the same as the tilt angle of the supporting wall.

[0086] The protruding end 21 is connected to a support member 23. The support member 23 has an extension 24 in an inclined direction. The extension 24 is provided with a plurality of positioning screw holes, and positioning bolts 25 can be inserted into the positioning screw holes.

[0087] In one specific embodiment, for the design of the adjustable, interlocking hinge support mechanism 30, please refer to [link to relevant documentation]. Figure 5, 6 As shown, the hinge support mechanism 30 includes two hinge rods 300 connected by a cross hinge; each hinge rod 300 includes: a main rod body 310; an inner tube 320 is provided at the first end of the main rod body 310; an arc-shaped slide rail 321 is provided on the inner tube 320; a locking part 330 is provided at the first end of the main rod body 310, and a toggle limiter 331 is rotatably provided on the locking part 330; the locking part 330 communicates radially with the main rod body 310 and forms a connection with the arc-shaped slide rail 321. There is a limiting space, within which a semi-cylindrical component 332 is arranged, with both ends of the semi-cylindrical component 332 being limited within the locking part 330; the actuating shaft of the toggle limiting component 331 is eccentrically set on the locking part 330, so that when it is locked, the actuating shaft presses against the semi-cylindrical component 332, so that the main rod body 310 and the inner tube 320 can be locked; the advantage of this design is that when adjusting the length, the minimum positioning range is wider, and the minimum adjustable extension range is larger compared to the positioning hole design.

[0088] Additionally, please see Figure 5 , 6 As shown, the second end of the main rod 310 can be fixedly connected to the bottom plate 1 of the construction bridge; the first end of the inner tube 320 is provided with a first rotating hinge 340, and a locking ring 341 is provided on the first rotating hinge 340. The locking ring 341 can be prefabricated and connected to the connection node of the corrugated steel web 100.

[0089] A hinge hole is provided in the middle of the main rod body 310, and a hinge shaft 351 is connected in the hinge hole.

[0090] In a specific factual manner, please refer to Figure 1 As shown, it should be noted that this technical solution still requires the assistance of construction auxiliary tensioning equipment. Specifically, the side of the corrugated steel web 100 facing the auxiliary construction scaffold 200 can be connected to the adjusting ring 201, and the adjusting ring 201 can be prefabricated with steel wire ropes so that the steel wire ropes can be pulled by the electric hoist that is pre-arranged in the direction of the auxiliary construction scaffold 200.

[0091] In a specific factual manner, please refer to Figure 7 , 8 As shown, the positioning mechanism 40 includes: a track 410 prefabricated and installed above the wing portion 2, the track 410 being arranged along the length direction of the wing portion 2; a work cart 420 connected to the track 410; the work cart 420 having a fixing plate 421, and a locking hole 422 provided on the wing portion 2; and a locking stud 423, which can be screwed onto the fixing plate 421 and the corresponding locking hole 422, so that the work cart 420 can be locked in a preset position and fixed to the wing portion 2.

[0092] Each positioning mechanism 40 also includes two positioning components, each including: a positioning part 430 fixedly connected above the fixing plate 421; a first working cylinder 431 and a second working cylinder 432 are provided on one side of the positioning part 430; in the extreme state, the first working cylinder 431 and the second working cylinder 432 are arranged in a triangle, and the extension lines of their output ends intersect.

[0093] The second working cylinder 432 is arranged at an angle.

[0094] The output ends of the first working cylinder 431 and the second working cylinder 432 are respectively rotatably connected to the cylinder connecting plate 433;

[0095] Positioning cylinder 440, one side of which is fixed to cylinder connecting plate 433;

[0096] The first end of the positioning cylinder 440 is connected to the positioning housing 441;

[0097] The two sides and the bottom of the positioning housing 441 are open;

[0098] A positioning roller assembly is rotatably connected inside the positioning housing 441;

[0099] The positioning roller assembly includes:

[0100] A roller shaft 451 with a torsion spring is rotatably connected to a positioning housing 441;

[0101] The first connecting shaft arm 461 and the second connecting shaft arm 462 are connected to the roller shaft 451;

[0102] The first connecting shaft arm 461 and the second connecting shaft arm 462 are arranged at 90 degrees. In the prefabricated state, the first connecting shaft arm 461 forms a 15-degree angle with the prefabricated axis, and the second connecting shaft arm 462 forms a 75-degree angle with the prefabricated axis.

[0103] The first connecting shaft arm 461 and the second connecting shaft arm 462 are connected at the ends away from the roller shaft 451 to a rotatable roller portion 470 with an inflatable tire.

[0104] The method for positioning the corrugated steel web using this precise positioning device is as follows: First, a construction template 10 is arranged on the bottom slab 1 of the construction bridge. The construction template 10 is generally arranged vertically, but in practice, it is arranged at an angle depending on the required construction span. However, when arranging the construction template 10, a wing 2 parallel to the foundation plane is formed, so that the supporting wall 3 is either vertical or inclined. In most existing construction methods, the supporting wall 3 is overly relied upon, that is, the supporting wall 3 is used as the main positioning method. However, the supporting wall 3 is generally symmetrically arranged on both sides, and it is impossible to ensure positioning accuracy at the same time during adjustment. In this technical solution, the protruding end 21 and the supporting end 22 are used as the bottom foundation positioning, and the supporting components 23 and extensions 24 are added according to the vertical or inclined method. This can effectively position the lower end of the corrugated steel web 100. Especially in the second embodiment, filler can be added between the positioning bolt 25 and the flange as an effective positioning barrier and marker.

[0105] The two hinge rods 300 are connected by a hinge shaft 351. Thus, when the two hinge rods 300 are respectively connected to the two corrugated steel webs 100, the movement of the other corrugated steel web 100 can be driven by adjusting one corrugated steel web 100. Moreover, the hinge rods 300 are adjustable in length, which facilitates the actual construction layout.

[0106] In the specific adjustment method, the working carriage 420 moves on the track 410, and the locking stud 423 locks the current position. Specifically, the tilt angle is adjusted by the first working cylinder 431 and the second working cylinder 432, and the positioning cylinder 440 adjusts the extension length so that the roller part 470 can reach the upper flange of the corrugated steel web 100. In this way, when the roller shaft 451 rotates, under the action of the torsion spring elastic force, the two roller parts 470 can form two receiving points on the corrugated steel web 100. The two receiving points are equivalent to the flatness detection of the positioning of the corrugated steel web 100. The adjustment force of the positioning cylinder 440 causes the hinge rod 300 to pull the corrugated steel web 100 on the other side, that is, the two symmetrical corrugated steel webs 100 are precisely positioned and adjusted at the same time.

[0107] The advantage of this technical solution is that the arrangement of the corrugated steel web is more flexible within the scope of precise positioning, especially in situations where the arrangement angle needs to be adjusted when facing combined construction or construction combined with other top structures.

[0108] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A precise positioning device for corrugated steel web, characterized in that, include: Construction templates (10) are arranged on both sides of the bridge base plate (1) so that the construction templates (10) are arranged in an open state with respect to the center of the bridge base plate (1). The construction template (10) has a wing (2) parallel to the construction bridge base plate (1) and a supporting wall (3) extending toward the construction bridge base plate (1). Auxiliary construction scaffolding (200) can be erected below the wing section (2). The corrugated steel web (100) can be attached to the supporting wall (3), and the first end of the corrugated steel web (100) can be supported on a limiting structure (20); A hinge support mechanism (30) can be prefabricated between the opposing corrugated steel webs (100), the support mechanism (30) being used to adjust the distance between the opposing corrugated steel webs (100); A positioning mechanism (40) is arranged on the wing portion (2) of a set of construction templates (10) and can move along the lateral direction of the construction templates (10). The positioning mechanism (40) has a set of positioning ends (401). The positioning ends (401) can move a preset distance toward the flange of the first end of the corrugated steel web (100). When the positioning ends (401) contact the flange, they can change from one positioning point to two positioning points. The two positioning points can be located on the center line of the flange. The hinge support mechanism (30) includes: Two hinge rods (300) are connected in a cross-shaped hinge configuration. Each of the hinge rods (300) includes: Main rod (310); An inner tube (320) can be provided at the first end of the main rod (310). The inner tube (320) is provided with an arc-shaped slide (321); A locking part (330) is provided at the first end of the main rod body (310), and a toggle limiter (331) is rotatably provided on the locking part (330). The locking part (330) is connected to the radial direction of the main rod body (310) and forms a limiting space with the arc-shaped slide (321). A semi-cylindrical part (332) is arranged in the limiting space, and the two ends of the semi-cylindrical part (332) are limited in the locking part (330). The actuating shaft of the actuating limiter (331) is eccentrically disposed on the locking part (330) so that when it is locked, the actuating shaft presses against the semi-cylindrical part (332) so that the main rod body (310) and the inner tube (320) can form a lock.

2. The precise positioning device for corrugated steel web as described in claim 1, characterized in that, The corrugated steel web (100) is positioned such that the corrugated steel web (100) is perpendicular to the limiting structure (20), and the lower flange of the corrugated steel web (100) can be engaged with the limiting structure (20).

3. The precise positioning device for corrugated steel web as described in claim 1, characterized in that, The corrugated steel web (100) is placed in such a way that the corrugated steel web (100) and the limiting structure (20) maintain an inclined angle, and the lower flange of the corrugated steel web (100) can be locked on the limiting structure (20).

4. The precise positioning device for corrugated steel web as described in claim 2, characterized in that, The limiting structure (20) includes: The protruding end (21) is able to abut against the lower flange; The support end (22) is connected below the protruding end (21) and can be detachably installed on the construction bridge base plate (1) and arranged adjacent to the support wall (3).

5. The precise positioning device for corrugated steel web as described in claim 3, characterized in that, The limiting structure (20) includes: The protruding end (21) is able to abut against the lower flange; The support end (22) can be detachably installed on the bottom plate (1) of the construction bridge and is arranged adjacent to the support wall (3); The protruding end (21) has a preset tilt angle, which is the same as the tilt angle of the supporting wall (3); The protruding end (21) is connected to a support member (23), which has an extension (24) in an inclined direction. The extension (24) is provided with a plurality of positioning screw holes, into which a positioning bolt (25) can be inserted.

6. The precise positioning device for corrugated steel web as described in claim 1, characterized in that, The second end of the main pole (310) can be fixedly connected to the bottom plate (1) of the construction bridge; The first end of the inner tube (320) is provided with a first rotating hinge (340), and a locking ring (341) is provided on the first rotating hinge (340). The locking ring (341) can be prefabricated and connected to the connection node of the corrugated steel web (100). A hinge hole is provided in the middle of the main rod body (310), and a hinge shaft (351) is connected in the hinge hole. The second end of the main rod (310) is hinged to the bridge base plate (1).

7. The precise positioning device for corrugated steel web as described in claim 6, characterized in that, The corrugated steel web (100) facing the auxiliary construction scaffold (200) can be connected to an adjusting ring (201), and a wire rope can be prefabricated on the adjusting ring (201) so that the wire rope can be pulled by an electric hoist pre-arranged in the direction of the auxiliary construction scaffold (200).

8. The precise positioning device for corrugated steel web as described in claim 7, characterized in that, The positioning mechanism (40) includes: A track (410) is prefabricated and installed above the wing section (2), and the track (410) is arranged along the length direction of the wing section (2); The track (410) is connected to a work vehicle (420). The work vehicle (420) has a fixing plate (421), and the wing part (2) is provided with a locking hole (422). A locking stud (423) is screwed onto the fixing plate (421) and the corresponding locking hole (422) so that the work vehicle (420) can be locked in a preset position and fixed to the wing part (2).

9. The precise positioning device for corrugated steel web as described in claim 8, characterized in that, Each of the positioning mechanisms (40) further includes two positioning components, the positioning components comprising: The positioning part (430) is fixedly connected to the upper part of the fixing plate (421); A first working cylinder (431) and a second working cylinder (432) are provided on one side of the positioning part (430). In the extreme state, the first working cylinder (431) and the second working cylinder (432) are arranged in a triangle, and the extension lines of their output ends intersect. The second working cylinder (432) is arranged at an angle; The output ends of the first working cylinder (431) and the second working cylinder (432) are respectively rotatably connected to a cylinder connecting plate (433); A positioning cylinder (440) is fixed on one side of the cylinder connecting plate (433); The first end of the positioning cylinder (440) is connected to the positioning housing (441). The positioning housing (441) is open on both sides and at the bottom; A positioning roller assembly is rotatably connected inside the positioning housing (441); The positioning roller assembly includes: A roller shaft (451) with a torsion spring is rotatably connected to the positioning housing (441); The first connecting shaft arm (461) and the second connecting shaft arm (462) are connected to the roller shaft (451); The first connecting shaft arm (461) and the second connecting shaft arm (462) are arranged at 90 degrees, and in the prefabricated state, the first connecting shaft arm (461) forms a 15-degree angle with the prefabricated axis, and the second connecting shaft arm (462) forms a 75-degree angle with the prefabricated axis; The first connecting shaft arm (461) and the second connecting shaft arm (462) are connected to a rotatable roller portion (470) with an inflatable tire at the end away from the roller shaft (451).

Citation Information

Patent Citations

  • External prestress strengthening method for prestressed concrete box-beam bridge

    CN101230562A

  • Corrugated steel web combined box girder, suspended splicing lossless positioning device and construction method

    CN113605207A