A steel web positioning and adjusting device and positioning method

Abstract

The present invention relates to the technical field of bridge construction, and particularly to a steel web positioning and adjusting device and a positioning method, which solve the technical problem in the prior art that the steel web is deformed due to the long execution time of the positioning construction in the existing hoisting method, affecting the construction progress. An installation position for the steel web is formed on the side surface of the precast frame, and an adjustment position is provided in the construction space formed by the precast frame; the hoisting assembly is connected to a precast moving beam and can move on the moving beam; the moving beam is arranged above the precast frame. When the hoisting assembly can lift the steel web from a horizontal position and hoist the steel web to the adjustment position, the first end and the middle end of the steel web are pulled so that the steel web is perpendicular to the adjustment position; the hoisting assembly can place the second end of the steel web at a positioning end, and the positioning end can limit the steel web; the positioning assembly can perform a pushing action, and this pushing action can cause the positioning end to carry the steel web to move.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and particularly relates to a steel web positioning and adjusting device and a positioning method. Background Art

[0002] As the advantages of the corrugated steel web PC box girder bridge are increasingly well-known to designers, the corrugated steel web PC box girder bridge will usher in a period of rapid development. The cantilever construction technology for prestressed concrete box girder bridges is quite mature; different from the cantilever construction of ordinary prestressed concrete box girders, the webs of the corrugated steel web PC box girder bridge are processed in the factory and positioned and installed on-site. The cantilever construction of the corrugated steel web box girder bridge reduces the formwork on the side and the binding of the web steel bars and the installation of the prestressed ducts, but increases the positioning and installation procedures of the steel web. Mastering the installation and positioning technology of the corrugated steel web will greatly reduce the construction period of the segment.

[0003] Since the corrugated steel web is processed in the factory and transported to the construction site over a long distance, some steel plates have to be stored at the construction site for a period of time before being used to relieve the stress generated during transportation; in addition, the lifting requirements for the corrugated steel web are as follows: the lifting points shall not be set on the combined steel bars, and only the through steel bar holes or vent holes can be used; when lifting horizontally for the second time, an even number of symmetric lifting points shall be set to avoid diagonal pulling and dragging; the common method in the prior art is to use a set of electric hoists to directly lift vertically, position and fix, and then complete subsequent construction steps such as pouring. During this process, the electric hoists need to be in place all the time. Under the influence of the lifting force for a long time at the lifting points, the steel web will deform, thus affecting the subsequent positioning and resulting in repeated construction. And the above continuous construction steps have extremely high requirements for team cooperation and execution efficiency. Summary of the Invention

[0004] The present invention aims to solve the technical problem in the prior art that the deformation of the steel web caused by the long execution time of the positioning construction using the prior art lifting method affects the construction progress, and provides a steel web positioning and adjusting device and a positioning method.

[0005] To solve the above technical problems, the technical solution of the present invention is specifically as follows:

[0006] A steel web positioning and adjusting device and a positioning method, comprising:

[0007] A prefabricated frame, which is supported by a scaffolding component;

[0008] The side of the prefabricated frame forms an installation position for the steel web, and the construction space formed by the prefabricated frame has an adjustment position;

[0009] A lifting component, which is connected to a prefabricated moving beam and can move on the moving beam;

[0010] The movable beam is arranged above the precast frame. When the hoisting assembly can lift the steel web from a horizontal position and hoist the steel web to the adjustment position, it will pull the first end and the middle end of the steel web so that the steel web is perpendicular to the adjustment position.

[0011] A positioning assembly. The hoisting assembly can place the second end of the steel web at a positioning end, and the positioning end can limit the steel web.

[0012] The positioning assembly can perform a pushing action, and this pushing action can make the positioning end carry the steel web to move.

[0013] When the positioning assembly performs the pushing action, the hoisting assembly can move at the same speed as the positioning assembly, so that the steel web approaches the longitudinal side of the precast frame while remaining perpendicular to the adjustment position and fits on the longitudinal side.

[0014] The precast frame further includes: a transverse side;

[0015] The transverse side is correspondingly connected to a group of the longitudinal sides and is perpendicular to the longitudinal sides.

[0016] Support columns can be arranged on the transverse side to assist in supporting the movable beam.

[0017] Specifically, the hoisting assembly includes:

[0018] A first electric hoist, which has a guiding end;

[0019] A second electric hoist, which has a wire-receiving end;

[0020] The first electric hoist and the second electric hoist are rail-connected on the movable beam, and the first electric hoist and the second electric hoist are arranged adjacent to each other.

[0021] Specifically, two groups of guiding steel wires are arranged on the guiding end;

[0022] Each group of the guiding steel wires is divided into two strands by a sub-wire buckle of the guiding steel wire;

[0023] Among them, the second ends of a group of the guiding steel wires are locked on the two flanges at the first end of the steel web;

[0024] Among them, the second ends of a group of the guiding steel wires are locked on both sides of the flange at the first end of the steel web.

[0025] Specifically, the wire-receiving end has a wire-releasing and receiving steel wire, and the second end of the wire-releasing and receiving steel wire is locked and connected to the side of the steel web far from the nearest longitudinal side.

[0026] Specifically, the positioning component includes:

[0027] A parallel pushing mechanism, on which the positioning end is arranged, and the parallel pushing mechanism can make the positioning end move along the horizontal line direction;

[0028] A work rail vehicle, on which the parallel pushing mechanism is arranged;

[0029] A work rail, which is arranged along the longitudinal direction of the adjustment position and close to the center line of the adjustment position; and

[0030] A locking mechanism capable of locking the work rail vehicle on the work rail.

[0031] The locking mechanism includes:

[0032] A linear cylinder mounted on the work rail vehicle, and the output end of the linear cylinder is connected with a friction part for contacting the work rail vehicle.

[0033] Specifically, the parallel pushing mechanism includes:

[0034] Two groups of fixed blocks, and the second ends of a group of first action rods are rotatably connected to each of the two groups of fixed blocks;

[0035] The first action rods are arranged in parallel;

[0036] Wherein, the rotating shaft of the rotation point of the fixed block passes through the fixed block and is connected with a driving motor;

[0037] The second ends of the two groups of first action rods are respectively rotatably connected to both ends of a first horizontal rod;

[0038] The first rotation distance formed between both ends of the first horizontal rod is equal to the second rotation distance formed between the two groups of fixed blocks;

[0039] Two groups of second action rods, the first ends of which are respectively rotatably connected to a corresponding group of the first action rods and respectively form a first rotation point and a second rotation point, so that the two groups of second action rods are parallel;

[0040] The second ends of the two groups of second action rods are rotatably connected to a second horizontal part;

[0041] Wherein, one second action rod is connected to the first end of the second horizontal part.

[0042] Specifically, it further includes:

[0043] A guide rod, the first end of which is rotatably connected to the first end of the first horizontal rod, and the second end of which can be inserted into a guide sleeve;

[0044] The guide rod is perpendicular to the first horizontal rod;

[0045] The upper and lower openings of the guide sleeve are in the vertical direction, and the guide sleeve is rotatably connected to one of the adjacent second actuating rods; and

[0046] A protective part, which is connected to one side of the guide sleeve and extends in the extending direction of the second horizontal part;

[0047] The length of the protective part is equal to the length of the second actuating rod.

[0048] Specifically, the second end of the second horizontal part is detachably connected to the positioning end;

[0049] The second horizontal part maintains a preset distance from the horizontal plane of the adjustment position;

[0050] A plurality of sets of sliding wheels are arranged below the second horizontal part, and the sliding wheels can slide in the lateral direction;

[0051] The positioning end includes:

[0052] A first connecting part, which is connected to the second horizontal part by bolts;

[0053] A support body, which is connected to the first connecting part, and the support body has a protrusion, and the second end of the steel web can be stuck in the protrusion; and

[0054] A first clamping part, which is formed at the lower end of the longitudinal side to adapt to the first clamping part.

[0055] Specifically, rollers are arranged below the second horizontal part;

[0056] A precast cushion layer is arranged at the adjustment position, and the height of the precast cushion layer is equal to the height of the working rail car;

[0057] A positioning groove is opened at the lower end of the longitudinal side, the positioning groove is connected to a measuring hole, and the measuring hole penetrates through the longitudinal side.

[0058] In addition, the positioning method of the steel web positioning and adjusting device includes the following steps:

[0059] Step S1, preparation work;

[0060] Build a precast frame at the construction position, form a criss-cross support with scaffolding components, set the adjustment position, arrange the moving beam, and connect the hoisting components on the moving beam. Specifically, the hoisting components include a first electric hoist and a second electric hoist;

[0061] Step S2, lifting the steel web;

[0062] Specifically, the lifting points are set such that each group of the guiding steel wires is divided into two strands by a sub-rope buckle for the guiding steel wires;

[0063] Among them, the second end of a group of the guiding steel wires is locked on the two flanges at the first end of the steel web;

[0064] Among them, the second end of a group of the guiding steel wires is locked on both sides of the flange at the first end of the steel web;

[0065] Correspondingly, the first electric hoist and the second electric hoist complete the horizontal lifting of the steel web. Specifically, the horizontal lifting is completed by adjusting the distance between the first electric hoist and the second electric hoist on the crossbeam, and they are moved upward above the adjustment position;

[0066] Step S3, the positioning of the working rail car;

[0067] Pre-fabricate the working rail in advance, call the working rail car. After the working rail car enters and reaches the designated position, at this time, it is necessary to adjust the steel web to the longitudinal direction through the distance between the first electric hoist and the second electric hoist;

[0068] Lower the steel web by the first electric hoist, and then align the second end of the steel web with the protrusions, at least two protrusions. At this time, the second end of the steel web is limited within the protrusions and does not need to directly abut against the protrusions; preventing the working rail car from being overturned;

[0069] Step S4, position in the longitudinal side direction through the parallel pushing mechanism;

[0070] Actuate the parallel pushing mechanism. When the steel web is tilted, it can be assisted in adjustment by the protection part;

[0071] Subsequently, the second horizontal part drives the protrusions to make the steel web approach the longitudinal side;

[0072] Step S5, after positioning is completed, disassemble the bolts between the second horizontal part and the protrusions.

[0073] The present invention has the following beneficial effects:

[0074] In this application, the corrugated steel web is transported to the predetermined position by the hoisting assembly, effectively and quickly reducing the stage in which the steel web 1 is prone to deformation. It is positioned in cooperation with the protrusions 443, and the on-site unmanned positioning is achieved to the longitudinal side 101 through the positioning assembly 40, and there is a protection part 83 with a safety prevention design, reducing potential safety hazards and construction risks; the above construction process can effectively reduce the deformation of the steel web, improve the construction progress, and can achieve on-site unmanned positioning operation. Description of the Drawings

[0075] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0076] Figure 1 is a schematic structural diagram of the present invention;

[0077] Figure 2 is a partially enlarged schematic diagram of the positioning component of the present invention;

[0078] Figure 3 is a schematic diagram of the arrangement of the fixing block and the driving motor of the present invention;

[0079] Figure 4 is an embodiment of the hoisting component of the present invention;

[0080] Figure 5 is a schematic structural diagram of the rope splitting buckle of the present invention;

[0081] Figure 6 is a schematic diagram of the initial hoisting method of the present invention.

[0082] The reference numerals in the figures are shown as:

[0083] Prefabricated frame 10, scaffolding component 20, steel web 1, adjustment position 2, hoisting component 30, positioning component 40, positioning end 401, longitudinal side 101, transverse side 102, moving beam 3;

[0084] First electric hoist 31, second electric hoist 32, guiding end 301, wire winding end 302;

[0085] Guiding wire rope 310, wire winding and unwinding wire rope 320, working rail car 410, working rail 411, center line 4, locking mechanism 90, linear cylinder 91, friction part 92;

[0086] Fixing block 60, first action rod 61, rotating shaft 610, first horizontal rod 71, second action rod 62, second horizontal part 72, driving motor 620;

[0087] First rotation point A, second rotation point B;

[0088] Guide rod 81, guide sleeve 82, protection part 83;

[0089] First connecting part 441, support body 442, protrusion 443, first clamping part 444;

[0090] Roller 51, precast cushion 52, positioning groove 53, measuring hole 54. Specific embodiments

[0091] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention. It should be noted that for the convenience of description in this application, the "left side" in the current view is the "first end", the "right side" is the "second end", the "upper side" is the "first end", and the "lower side" is the "second end". 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.

[0092] The present invention aims to solve the technical problem in the prior art that the steel web is deformed due to the long execution time of positioning construction in the existing hoisting method, which affects the construction progress. A steel web positioning and adjusting device and a positioning method are provided. Please refer to the attached Figure 1 As shown, the steel web positioning and adjusting device in this technical solution includes: a prefabricated frame 10, which is the prefabricated beam box body, and the prefabricated beam box body is supported by a scaffolding component 20; the scaffolding component 20 is constructed in a criss-cross manner to increase strength and can be used for personnel-assisted construction. In fact, the scaffolding component 20 can be replaced with a prefabricated frame, also in a high criss-cross manner, because this technical solution can greatly reduce the personnel-assisted construction at the construction site.

[0093] An installation position for the steel web 1 is formed on the side of the prefabricated frame 10, and the installation position is the longitudinal side 101. The construction space formed by the prefabricated frame 10 has an adjustment position 2; a hoisting component 30, that is, a construction crane device, is connected to a prefabricated moving beam 3 and can move on the moving beam 3; the moving beam 3 is arranged above the prefabricated frame 10. When the hoisting component 30 can lift the steel web 1 from a horizontal position and hoist the steel web 1 to the adjustment position 2, the first end and the middle end of the steel web 1 are pulled to make the steel web 1 perpendicular to the adjustment position 2. It should be noted that: the time for the steel web 1 to be adjusted from the horizontal position to be perpendicular to the adjustment position 2 is short, mainly completed by operating the hoisting component 30 in cooperation. Further, a positioning component 40 is designed, and the hoisting component 30 can place the second end of the steel web 1 at a positioning end 401, and the positioning end 401 can limit the steel web 1.

[0094] The positioning end 401 can provide support for the steel web 1, reducing the probability of deformation of the steel web 1 caused by long-term vertical hoisting. In addition, the positioning assembly 40 can perform a pushing action, and this pushing action can enable the positioning end 401 to carry the steel web 1 to move; when the positioning assembly 40 performs the pushing action, the hoisting assembly 30 can move at the same speed as the positioning assembly 40, so that the steel web 1 approaches the longitudinal side 101 of the precast frame 10 while remaining perpendicular to the adjustment position 2 and fits on the longitudinal side 101 to complete the final positioning.

[0095] In addition, the precast frame 10 further includes: a transverse side 102; the transverse side 102 is correspondingly connected to a group of longitudinal sides and is perpendicular to the longitudinal sides; support columns 103 can be arranged on the transverse side 102 to assist in supporting the moving beam 3.

[0096] In a specific embodiment, please refer to Figure 1 、 6 As shown in the figure, the hoisting assembly 30 includes: a first electric hoist 31, which has a guiding end 301; a second electric hoist 32, which has a wire-receiving end 302; the first electric hoist 31 and the second electric hoist 32 are rail-connected on the moving beam 3, and the first electric hoist 31 and the second electric hoist 32 are arranged adjacent to each other; different from the prior art, this technical solution uses two groups of electric hoists. The advantage of the two groups of electric hoists is that it is convenient to transfer the steel web and can also cooperate with the subsequent moving and positioning steps. Specifically, two groups of guiding steel wires 310 are arranged on the guiding end 301; each group of guiding steel wires 310 is divided into two strands by a wire-splitting buckle 311; among them, the second end of a group of guiding steel wires 310 is locked on the two flanges at the first end of the steel web 1; among them, the second end of a group of guiding steel wires 310 is locked on both sides of the flange at the first end of the steel web 1; as shown in the appendix Figure 4 As shown.

[0097] In a specific embodiment, as shown in the appendix Figure 1 、 6 As shown, the wire-receiving end 302 has a wire-releasing and receiving steel wire 320, and the second end of the wire-releasing and receiving steel wire 320 is locked and connected to the side of the steel web 1 far from the nearest longitudinal side 101.

[0098] Regarding the structure of the wire-splitting buckle 311, please refer to the appendix Figure 5 As shown, through holes in different directions are provided, and an arc-shaped depression is designed to hold the steel wire and the steel wire for assisting in connecting the hook.

[0099] In a specific embodiment, please refer to Figure 2As shown in the figure, the positioning component 40 includes: a parallel pushing mechanism. Multiple parallel pushing mechanisms can be provided. In a preferred embodiment, two groups are configured to form two positioning ends. At the same time, the positioning end 401 is also provided on the parallel pushing mechanism, and the parallel pushing mechanism can move the positioning end 401 along the horizontal line direction; a working rail vehicle 410, on which the parallel pushing mechanism is provided; a working rail 411, arranged along the longitudinal direction of the adjustment position 2 and close to the center line 4 of the adjustment position 2; and a locking mechanism 90 capable of locking the working rail vehicle 410 on the working rail 411.

[0100] Specifically, the locking mechanism 90 uses a linear cylinder 91 mounted on the working rail vehicle 410. The output end of the cylinder of the linear cylinder 91 is connected with a friction part 92, and the friction part 92 is used to contact the working rail vehicle 410.

[0101] In addition, the parallel pushing mechanism includes: two groups of fixed blocks 60. One end of a group of first action rods 61 is rotatably connected to each of the two groups of fixed blocks 60; the first action rods 61 are arranged in parallel; among them, the rotation axis 610 of the rotation point of the fixed block 60 passes through the fixed block 60 and is connected with a driving motor 620; the two ends of the two groups of first action rods 61 are respectively rotatably connected to both ends of a first horizontal rod 71; the first rotation distance formed between both ends of the first horizontal rod 71 is equal to the second rotation distance formed between the two groups of fixed blocks 60; two groups of second action rods 62, the first ends of which are respectively rotatably connected to a corresponding group of first action rods 61, and respectively form a first rotation point A and a second rotation point B, so that the two groups of second action rods 62 are parallel; the second ends of the two groups of second action rods 62 are rotatably connected to a second horizontal part 72; among them, one second action rod 62 is connected to the first end of the second horizontal part 72.

[0102] It also includes: a guide rod 81, the first end of which is rotatably connected to the first end of the first horizontal rod 71, and the second end of which can be inserted into a guide sleeve 82; the guide rod 81 is perpendicular to the first horizontal rod 71; the upper and lower openings of the guide sleeve 82 are in the vertical direction, and the guide sleeve 82 is rotatably connected to an adjacent second action rod 62.

[0103] The working principle of the above components is: when the driving motor 620 works, as shown in the appendix Figure 2 the first action rod 61 rotates clockwise, driving the second action rod 62 to approach the longitudinal side 101. The second horizontal part 72 drives the protrusion 443 to approach the longitudinal side 101. Further, the guide rod 81 slides down along the guide sleeve 82, and the limit position is that the guide rod 81 touches the bottom, and the first clamping part 444 is in place in cooperation with the positioning groove 53.

[0104] The above technical solution avoids designing the staggered support structure for steel bar bundling and realizes the cooperation and positioning.

[0105] It should be noted that for this fitting and positioning, the electric hoist of the hoisting assembly is required to cooperate with the moving guide.

[0106] The protection part 83 is connected to one side of the guide sleeve 82 and extends in the extending direction of the second horizontal part 72; the length of the protection part 83 is equal to the length of the second operating rod 62; the rotation point of the guide sleeve 82 is arranged deviating from the center of the guide sleeve, which is beneficial to balance the counterweight.

[0107] The protection part 83 does not directly contact the side surface of the steel web 1. Due to the existence of the protrusion 443, there is still a certain distance between the protection part 83 and the steel web 1. The actual function of the protection part 83 is to serve as the counterweight of the parallel pushing mechanism, and it can also prevent the steel web 1 from falling vertically and tipping over the working rail car 410 in case of an accident. The protection part 83 plays a blocking role and belongs to the safety protection structure.

[0108] Please refer to Figures 1-6 As shown, the second end of the second horizontal part 72 is detachably connected to the positioning end 401.

[0109] The second horizontal part 72 maintains a preset distance from the horizontal plane of the adjustment position 2.

[0110] A plurality of sets of sliding wheels 721 are arranged below the second horizontal part 72, and the sliding wheels 721

[0111] can slide in the transverse direction.

[0112] The positioning end 401 includes:

[0113] The first connecting part 441, which is connected to the second horizontal part 72 by bolts;

[0114] The support body 442, which is connected to the first connecting part 441, and the support body 442 has a protrusion 443, and the second end of the steel web 1 can be stuck in the protrusion 443; and

[0115] The first clamping part 444, which is formed at the lower end of the longitudinal side 101 for adapting to the first clamping part 444.

[0116] Please refer to Figures 1-6 As shown, a roller 51 is arranged below the second horizontal part 72.

[0117] A precast cushion layer 52 is arranged on the adjustment position 2, and the height of the precast cushion layer is equal to the height of the working rail car 410.

[0118] A positioning groove 53 is opened at the lower end of the longitudinal side 101, the positioning groove 53 is connected to a measuring hole 54, and the measuring hole 54 penetrates through the longitudinal side 101; the positioning groove 53 cooperates with the first clamping part 444, and the measuring hole 54 is used for the detection and positioning in the initial stage of construction layout, and the detection and positioning can be carried out by laser ranging.

[0119] The positioning method of the steel web positioning and adjusting device includes the following steps:

[0120] Step S1, preparation work;

[0121] Build a prefabricated frame 10 at the construction position, form a criss-cross support with the scaffolding components 20, set the adjustment position 2, arrange the moving beam 3, and connect the lifting components to the upper rail of the moving beam 3. Specifically, the lifting components include a first electric hoist 31 and a second electric hoist 32.

[0122] Step S2, lifting the steel web;

[0123] Specifically, the lifting points are set such that each group of guiding steel wires 310 is divided into two strands by a sub-wire buckle 311 guiding the steel wire 310;

[0124] Among them, the second end of a group of guiding steel wires 310 is locked to the two flanges at the first end of the steel web 1;

[0125] Among them, the second end of a group of guiding steel wires 310 is locked on both sides of the flange at the first end of the steel web 1;

[0126] Correspondingly, the first electric hoist 31 and the second electric hoist 32 complete the horizontal lifting of the steel web 1. Specifically, the horizontal lifting is completed by adjusting the distance between the first electric hoist 31 and the second electric hoist 32 on the cross beam 3, and moving upward above the adjustment position 2.

[0127] Step S3, positioning of the working rail car;

[0128] Pre-fabricate the working rail 411 in advance, call the working rail car 410, and after the working rail car 410 enters, reach the designated position. At this time, it is necessary to adjust the steel web 1 to the longitudinal direction through the distance between the first electric hoist 31 and the second electric hoist 32;

[0129] Lower the steel web 1 through the first electric hoist 31, and then align the second end of the steel web 1 with the protrusion 413, at least aligning two protrusions 443. At this time, the second end of the steel web 1 is limited within the protrusion 443 and does not need to directly abut against the protrusion; preventing the working rail car 410 from being overturned;

[0130] Step S4, positioning in the direction of the longitudinal side 101 through the parallel pushing mechanism;

[0131] Actuate the parallel pushing mechanism. When the steel web 1 is inclined, it can be assisted by the protection part 83 for adjustment;

[0132] Subsequently, the second horizontal part 72 drives the protrusion 443 to make the steel web 1 approach the longitudinal side 101.

[0133] Step S5, positioning is completed, and the bolt between the second horizontal part 72 and the protrusion 443 is disassembled.

[0134] In summary, the corrugated steel web of the present application is transported to a predetermined position by the hoisting assembly, effectively and quickly reducing the stage in which the steel web 1 is prone to deformation. It is positioned by cooperating with the protrusion 443, and the positioning assembly 40 is used to achieve unmanned positioning and delivery to the longitudinal side 101 on site. Moreover, it has a protective part 83 with a safety prevention design, reducing potential safety hazards and construction risks. The above construction process can effectively reduce the deformation of the steel web, improve the construction progress, and achieve unmanned positioning operation on site.

[0135] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. The obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A positioning and adjusting device for a steel web, characterized in that Including: A prefabricated frame (10) supported by scaffolding components (20); An installation position for a steel web (1) is formed on the side of the prefabricated frame (10), and an adjustment position (2) is provided in the construction space formed by the prefabricated frame (10); A hoisting assembly (30) connected to a prefabricated moving beam (3) and capable of moving on the moving beam (3); The moving beam (3) is arranged above the prefabricated frame (10). When the hoisting assembly (30) can lift the steel web (1) from a horizontal position and hoist the steel web (1) to the adjustment position (2), the first end and the middle of the steel web (1) will be pulled so that the steel web (1) is perpendicular to the adjustment position (2); A positioning assembly (40). The hoisting assembly (30) can place the second end of the steel web (1) on a positioning end (401), and the positioning end (401) can limit the steel web (1); The positioning assembly (40) can perform a pushing action, and this pushing action can make the positioning end (401) carry the steel web (1) to move; When the positioning assembly (40) performs the pushing action, the hoisting assembly (30) can move at the same speed as the positioning assembly (40), so that the steel web (1) approaches the longitudinal side (101) of the prefabricated frame (10) while remaining perpendicular to the adjustment position (2) and fits on the longitudinal side (101); The prefabricated frame (10) further includes: a transverse side (102); The transverse side (102) is correspondingly connected to a group of the longitudinal sides and is perpendicular to the longitudinal sides; Support columns (103) can be arranged on the transverse side (102) to assist in supporting the moving beam (3); The hoisting assembly (30) includes: A first electric hoist (31) having a guiding end (301); A second electric hoist (32) having a wire-receiving end (302); The first electric hoist (31) and the second electric hoist (32) are rail-connected to the moving beam (3), and the first electric hoist (31) and the second electric hoist (32) are arranged adjacent to each other; Two groups of guiding steel wires (310) are arranged on the guiding end (301); Each group of the guiding steel wires (310) is divided into two strands by a sub-wire buckle (311); Among them, the second ends of a group of the guiding steel wires (310) are locked on the two flanges at the first end of the steel web (1); Among them, the second ends of a group of the guiding steel wires (310) are locked on both sides of the flange at the first end of the steel web (1); The wire-receiving end (302) has a wire-receiving and releasing steel wire (320), and the second end of the wire-receiving and releasing steel wire (320) is locked and connected to the side of the steel web (1) away from the nearest longitudinal side (101); The positioning assembly (40) includes: A parallel pushing mechanism. The positioning end (401) is arranged on the parallel pushing mechanism, and the parallel pushing mechanism can make the positioning end (401) move along the horizontal line direction; A working rail vehicle (410) on which the parallel pushing mechanism is provided; A working rail (411) which is arranged along the longitudinal direction of the adjustment position (2) and close to the center line (4) of the adjustment position (2); and A locking mechanism (90) capable of locking the working rail vehicle (410) on the working rail (411); The locking mechanism (90) includes: A linear cylinder (91) mounted on the working rail vehicle (410), and a friction part (92) is connected to the output end of the cylinder of the linear cylinder (91), and the friction part (92) is used to contact the working rail vehicle (410).

2. The steel web positioning and adjusting device according to claim 1, wherein, The parallel pushing mechanism includes: Two groups of fixed blocks (60), and the second ends of a group of first action rods (61) are rotatably connected to each of the two groups of fixed blocks (60); The first action rods (61) are arranged in parallel; Wherein, the rotating shaft (610) of the rotation point of the fixed block (60) passes through the fixed block (60) and is connected with a driving motor (620); The second ends of the two groups of first action rods (61) are respectively rotatably connected to both ends of a first horizontal rod (71); The first rotation distance formed between both ends of the first horizontal rod (71) is equal to the second rotation distance formed between the two groups of fixed blocks (60); Two groups of second action rods (62), the first ends of which are respectively rotatably connected to the corresponding group of first action rods (61), and respectively form a first rotation point (A) and a second rotation point (B), so that the two groups of second action rods (62) are parallel; The second ends of the two groups of second action rods (62) are rotatably connected to a second horizontal part (72); Wherein, one of the second action rods (62) is connected to the first end of the second horizontal part (72).

3. The steel web positioning and adjusting device according to claim 2, characterized in that It further includes: a guide rod (81), the first end of which is rotatably connected to the first end of the first horizontal rod (71), and the second end of which can be inserted into a guide sleeve (82); The guide rod (81) is perpendicular to the first horizontal rod (71); The upper and lower openings of the guide sleeve (82) are in the vertical direction, and the guide sleeve (82) is rotatably connected to one of the adjacent second action rods (62); and A protection part (83) which is connected to one side of the guide sleeve (82) and extends in the extending direction of the second horizontal part (72); The length of the protection part (83) is equal to the length of the second action rod (62).

4. The steel web positioning and adjusting device according to claim 3, wherein, The second end of the second horizontal part (72) is detachably connected to the positioning end (401); The second horizontal part (72) maintains a preset distance from the horizontal plane of the adjustment position (2); A plurality of sliding wheels (721) are arranged below the second horizontal part (72), and the sliding wheels (721) can slide in the transverse direction; The positioning end (401) includes: A first connecting part (441) which is connected to the second horizontal part (72) by bolts; A support body (442) is connected to the first connecting portion (441), and the support body (442) has a protrusion (443) into which the second end of the steel web (1) can be stuck; and A first positioning portion (444) is formed at the lower end of the longitudinal side (101) for adapting to the first positioning portion (444).

5. The steel web positioning and adjusting device according to claim 4, wherein, A roller (51) is provided below the second horizontal portion (72); A precast cushion layer (52) is provided on the adjustment position (2), and the height of the precast cushion layer is equal to the height of the working rail car (410); A positioning groove (53) is formed at the lower end of the longitudinal side (101), and the positioning groove (53) is connected to a measurement hole (54) that penetrates the longitudinal side (101).

6. The steel web positioning and adjusting device according to claim 5, characterized in that The positioning method of the steel web positioning and adjusting device includes the following steps: Step S1, preparation work; Build a precast frame (10) at the construction position, form a criss-cross support with scaffolding components (20), set the adjustment position (2), arrange the moving beam (3), and connect a hoisting component to the upper rail of the moving beam (3). Specifically, the hoisting component includes a first electric hoist (31) and a second electric hoist (32); Step S2, hoisting the steel web; Specifically, the lifting points are set such that each group of the guiding steel wires (310) is divided into two strands by a sub-wire buckle (311) of the guiding steel wire (310); Among them, the second ends of a group of the guiding steel wires (310) are locked on the two flanges at the first end of the steel web (1); Among them, the second ends of a group of the guiding steel wires (310) are locked on both sides of the flange at the first end of the steel web (1); Correspondingly, the first electric hoist (31) and the second electric hoist (32) complete the horizontal hoisting of the steel web (1). Specifically, the horizontal hoisting is completed by adjusting the spacing between the first electric hoist (31) and the second electric hoist (32) on the cross beam (3), and moving upward above the adjustment position (2); Step S3, positioning of the working rail car; Precast the working rail (411) in advance, call the working rail car (410). After the working rail car (410) enters and reaches the designated position, at this time, it is necessary to adjust the steel web (1) to the longitudinal direction through the spacing between the first electric hoist (31) and the second electric hoist (32); Lower the steel web (1) by the first electric hoist (31), and then align the second end of the steel web (1) with the protrusions (413), at least two protrusions (443). At this time, the second end of the steel web (1) is limited within the protrusions (443) and does not need to directly abut against the protrusions; to prevent tipping over the working rail car (410); Step S4, position the steel web in the direction of the longitudinal side (101) through the parallel pushing mechanism; Operate the parallel pushing mechanism. When the steel web (1) is tilted, it can be assisted in adjustment by the protection portion (83); Subsequently, the second horizontal portion (72) drives the protrusions (443) to bring the steel web (1) closer to the longitudinal side (101); Step S5, positioning is completed, and the bolts between the second horizontal portion (72) and the protrusions (443) are disassembled.

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