Multi-piece t-beam wet joint formwork mounting and dismounting device, formwork adjusting method and construction process

Abstract

The application belongs to the technical field of assembled bridge construction, and particularly relates to a multi-piece T-beam wet joint formwork mounting and dismounting device, method and construction process. The device comprises a crane arranged between wet joints of adjacent T-beams and capable of walking on the T-beams. The crane is connected with one end of a hoisting rope through a hoisting winch assembly, and the other end of the hoisting rope is connected with a formwork. The hoisting winch on the crane can adjust the length of the hoisting rope, and further adjust the height of the formwork, so that the formwork is located at a target position between the adjacent T-beams. When the formwork is located at the target position, it is used to form a top opening containing space with the adjacent T-beams, and the containing space is used to pour and contain concrete. When the formwork is lowered below a tie connecting piece so that the hoisting rope intersects with the tie connecting piece, a first winch performs a pay-off action, and a second winch performs a take-up action, so that the tie connecting piece drives the hoisting rope to move in a preset direction, thereby adjusting the formwork from the wet joint where the formwork is located to an adjacent wet joint or an edge connected by multiple T-beams.

Description

Technical Field

[0001] This application belongs to the field of prefabricated bridge construction technology, and in particular relates to a device, method and construction process for installing and removing wet joint templates for multi-piece T-beams. Background Technology

[0002] In the field of prefabricated bridge construction, the transverse connection between precast beams of the superstructure commonly adopts cast-in-place wet joint technology. Traditional wet joint formwork construction uses an under-bridge suspended formwork process: the formwork needs to be placed on the ground under the bridge and then hoisted to a high-altitude working surface using crane equipment. After the concrete is poured, it is dismantled and lowered for recycling. This process has the following bottlenecks: poor terrain adaptability: when the bridge crosses rivers, lakes, or operational roads, there is no ground space under the bridge to place the formwork, requiring coordination of rescue boats or vehicles, significantly increasing coordination costs and safety risks.

[0003] Therefore, there is an urgent need for a multi-piece T-beam wet joint formwork installation and dismantling device and construction method to solve the problem of poor terrain adaptability of wet joint formwork. Summary of the Invention

[0004] Therefore, it is necessary to provide a device, method, and construction process for installing and removing wet joint formwork for multi-piece T-beams to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a device for installing and removing wet joint formwork for multiple T-beams, comprising: The crane is positioned between the wet joints of adjacent T-beams and can travel on the T-beams. The crane is connected to one end of a hoisting rope via a hoisting winch assembly, and the other end of the hoisting rope is connected to the formwork. The hoisting winch on the crane can adjust the length of the hoisting rope, thereby adjusting the height of the formwork so that the formwork is positioned at the target position between the adjacent T-beams. Two sets of first and second winches are provided for connection to multiple T-beams. The outermost parts of the T-beams are designated as first and second T-beams, respectively. First winches are arranged at both ends of the first T-beams, and second winches are arranged at both ends of the second T-beams. One set of first and second winches is connected by a first traction rope, and the other set of first and second winches is connected by a second traction rope. The first and second traction ropes are connected by a tie-connector. When the template is located at the target position, it is used to form a top-opening receiving space with the adjacent T-beam, and to pour the receiving space; When the template hangs down below the tie-up connector so that the hoisting rope crosses the tie-up connector, the first winch performs a line release action, and the second winch performs a line take-up action, so that the tie-up connector drives the hoisting rope to move in a preset direction, thereby adjusting the template from its location at the wet joint to the edge of the adjacent wet joint or the connection of multiple T-beams; The hoisting winch assembly includes a hoisting winch body, a camera, a hoisting winch position adjustment mechanism, and a control system. The hoisting winch body is connected to the hoisting rope and controls the hoisting action of the hoisting rope; The camera is connected to the control system and is used to capture images of the template and the adjacent T-beams, forming an image, and transmitting it to the control system. The control system is connected to the hoisting winch position adjustment mechanism and is used to receive the image and generate a position adjustment command based on the image. The hoisting winch position adjustment mechanism is located at the center of the crane and connected to the hoisting winch body. It is used to receive the adjustment command and adjust the position of the hoisting winch body.

[0006] In some feasible embodiments, the crane has a hoisting winch assembly on its roof, and the two wheels of the crane are respectively arranged on the adjacent T-beams, so that the central part of the crane is suspended between the adjacent T-beams.

[0007] In some feasible embodiments, at least two suspension rod holes are arranged on the bottom wall of the template, and the two suspension rod holes are respectively arranged at both ends of the bottom wall; the template is made of plywood splicing, and the bottom of the plywood is fixed by crossbeams and longitudinal beams.

[0008] Some feasible methods also include a protective structure disposed on the outermost side of the first T-beam and the second T-beam, so that when the first traction rope moves, it contacts the side of the protective structure away from the first T-beam to reduce friction; when the second traction rope moves, it contacts the side of the protective structure away from the second T-beam to reduce friction.

[0009] In some feasible embodiments, the edge of the template is provided with closed-cell foam strips; when the template is located at the target position, the closed-cell foam strips seal the gap between the template and the T-beam.

[0010] In some feasible embodiments, the hoisting winch position adjustment mechanism includes multiple electrically operated telescopic rods; the fixed end of the electrically operated telescopic rod is connected to the top of the crane frame, and the telescopic end of the electrically operated telescopic rod is connected to the hoisting winch body in a horizontal swinging direction.

[0011] In some feasible embodiments, the number of electric telescopic rods is four, and the four electric telescopic rods are connected to the frame and the hoisting winch body in four directions respectively, with the two electric telescopic rods in opposite directions being staggered.

[0012] In some possible implementations, the top of the frame is square.

[0013] Secondly, this application provides a method for adjusting the wet joint formwork of multiple T-beams, applied to the aforementioned installation and removal device for the wet joint formwork of multiple T-beams, the method comprising: Acquire images of adjacent T-beams and an image of the template to obtain the distance between the wet joints of adjacent T-beams, as well as the width and length of the template; Based on the distance of the wet joint and the width of the template, determine the optimal distance between the template width direction and the adjacent T-beam; Obtain the current image of the current wet joint, the adjacent T-beam, and the template below the wet joint; Based on the current image, determine the positional relationship between the currently adjacent T-beams and the template; Based on the optimal distance and the current positional relationship between the adjacent T-beams and the template, the horizontal adjustment angle of the template is determined; Adjust the angle according to the horizontal direction of the template and generate adjustment instructions.

[0014] Thirdly, this application provides an intelligent installation and dismantling construction process for multi-piece T-beam wet joint formwork, applied to the aforementioned multi-piece T-beam wet joint formwork installation and dismantling device, the construction process including: The crane is moved to the first position, the template is connected to the hoisting rope, and the hoisting winch assembly is used to adjust the length of the hoisting rope so that the template is raised to the first target position; The template is fixed using the flange plate of the T-beam, and then the template is detached from the lifting rope. Using concrete, a receiving space with a top opening is formed by the formwork and the T-beam, and the receiving space is poured. Control the crane to move the T-beam to the second position, connect the template to the hoisting rope, repeat the actions of raising the template to the second target position, and fixing the template and pouring the filling space; After the wet joint of the adjacent T-beams has completed the concrete pouring and the concrete has reached the required solidification level, the crane is moved to the first position and connected to the formwork. The formwork is then separated from the solidified concrete, and the formwork is lowered until the lifting rope crosses the tie connector. The first winch performs the wire feeding action, and the second winch performs the wire reeling action, causing the tie connector to move to one side of the multiple T-beams. At the same time, the hoisting rope moves to one side, and the template moves to the adjacent wet joint, repeating the action of the T-beams and the template forming a receiving space. After all wet joints are fixed with concrete, the template is moved to the outermost side of the multiple T-beams using the first winch and the second winch, and the template is hooked up with ropes and removed.

[0015] Beneficial Effects: A multi-piece T-beam wet joint formwork installation and dismantling device includes a crane positioned between the wet joints of adjacent T-beams, capable of traveling on the T-beams. The crane is connected to one end of a lifting rope via a lifting winch assembly, and the other end of the lifting rope is connected to the formwork. The lifting winch on the crane can adjust the length of the lifting rope, thereby adjusting the height of the formwork to position it at a target location between adjacent T-beams. Two sets of first and second winches are used to connect to the multiple T-beams, with the outermost of the multiple T-beams being the first and second T-beams, respectively. The first winches are arranged at both ends of the first T-beams, and the second winches are arranged at both ends of the second T-beams. One set of first and second winches is connected by a first traction rope, and the other set of first and second winches is connected by a second traction rope. The first and second traction ropes are connected by a tie-connector. When the formwork is at the target location, it forms a top-opening receiving space with the adjacent T-beams for pouring and accommodating concrete. In this system, when the template is lowered below the tie-connector so that the hoisting rope crosses the tie-connector, the first winch performs a releasing action, and the second winch performs a retracting action, causing the tie-connector to move the hoisting rope in a preset direction, thereby adjusting the template from its location at the wet joint to the edge of an adjacent wet joint or the connection of multiple T-beams. The hoisting winch assembly includes a hoisting winch body, a camera, a hoisting winch position adjustment mechanism, and a control system. The hoisting winch body is connected to the hoisting rope and controls the hoisting action of the rope. The camera is connected to the control system to capture images of the template and adjacent T-beams, forming images and transmitting them to the control system. The control system is connected to the hoisting winch position adjustment mechanism to receive the images and generate position adjustment commands based on the images. The hoisting winch position adjustment mechanism is located at the center of the crane and connected to the hoisting winch body to receive the adjustment commands and adjust the position of the hoisting winch body. This structure enables the installation, removal, and adjustment of the wet joint template, offering high work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the crane and the end faces of multiple T-beams in one embodiment of a multi-T-beam wet joint template installation and removal device; Figure 2This is a schematic diagram of a template installation and removal device for a multi-piece T-beam wet joint template in one embodiment. Figure 3 A schematic diagram of a T-beam for a multi-piece T-beam wet joint template installation and removal device in one embodiment; Figure 4 This is a schematic diagram of template disassembly and repositioning for a multi-piece T-beam wet joint template installation and disassembly device in one embodiment. Figure 5 This is a schematic diagram of template removal for a multi-piece T-beam wet joint template installation and removal device in one embodiment. Figure 6 This is a flowchart illustrating a method for adjusting the wet joint template of a multi-piece T-beam in one embodiment.

[0018] Figure label: 1. Crane; 2. Formwork; 3. First winch; 4. Second winch; 5. Main body of the lifting winch; 6. Protective structure; 7. Lifting rod hole; 8. First T-beam; 9. Second T-beam; 10. Lifting rope; 11. Tie connector. Detailed Implementation

[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all couplings of one or more of the associated listed items.

[0021] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0022] like Figures 1 to 5 As shown, in a first aspect, this application provides a multi-piece T-beam wet joint formwork installation and removal device, including a crane 1, a formwork 2, a first winch 3, and a second winch 4.

[0023] Specifically, the crane 1 is positioned between the wet joints of adjacent T-beams and can travel on the T-beams. The crane 1 is connected to one end of the hoisting rope 10 via a hoisting winch assembly, and the other end of the hoisting rope 10 is connected to the template 2. The hoisting winch on the crane 1 can adjust the length of the hoisting rope 10, thereby adjusting the height of the template 2 so that the template 2 is located at the target position between adjacent T-beams.

[0024] The crane 1 is equipped with a hoisting winch assembly on its roof, and the two wheels of the crane 1 are respectively arranged on the adjacent T-beams so that the central part of the crane 1 is suspended between the adjacent T-beams.

[0025] For example, the crane 1 has two wheels on each side of its bottom, so that the crane 1 can be supported by four wheels while facilitating its movement. The central part of the crane 1 is suspended between adjacent T-beams, so that the hoisting winch assembly in the center of the crane 1 can be suspended between the wet joints of the adjacent T-beams, which facilitates the hoisting of the formwork 2.

[0026] Crane 1 has a frame structure with a square top to allow the hoisting winch assembly to be placed in the central area of ​​the frame.

[0027] The hoisting winch assembly includes a hoisting winch body 5, a camera, a hoisting winch position adjustment mechanism, and a control system.

[0028] Specifically, the hoisting winch body 5 is connected to the hoisting rope 10 and controls the hoisting action of the hoisting rope 10; the hoisting winch body 5 is a conventional hoisting winch, or a winch, which adjusts the length of the hoisting rope 10 by winching. The winching action of the hoisting winch body 5 can be manually operated using control buttons connected to the hoisting winch body 5, or it can be automatically controlled.

[0029] The camera is connected to the control system and is used to capture images of the template 2 and the adjacent T-beams, forming images that are then transmitted to the control system. The camera is a conventional camera and can be positioned at the top of the frame for easy capture of lower areas, such as the side of the hoisting winch body 5. The camera is electrically connected to the control system, enabling image data transmission.

[0030] The control system is connected to the hoisting winch position adjustment mechanism and is used to receive the image and generate a position adjustment command based on the image. The control system can be a control system stored in a computer, used to receive and process image data and generate adjustment commands. The computer storing the control system is electrically connected to the hoisting winch position adjustment mechanism so that the hoisting winch position adjustment mechanism receives and executes the adjustment command.

[0031] The hoisting winch position adjustment mechanism is located at the center of the crane 1 and is connected to the hoisting winch body 5. It is used to receive the adjustment command and adjust the position of the hoisting winch body 5.

[0032] Specifically, the hoisting winch position adjustment mechanism includes multiple electric telescopic rods; the fixed end of the electric telescopic rod is connected to the top of the frame of the crane 1, and the telescopic end of the electric telescopic rod is horizontally swaying connected to the hoisting winch body 5.

[0033] The number of electric telescopic rods is four. The four electric telescopic rods are connected to the frame and the hoisting winch body 5 in four directions respectively, and the two electric telescopic rods in opposite directions are staggered.

[0034] It should be noted that the electric telescopic boom can only swing horizontally and is oscillatingly connected to the hoisting winch body 5. When the electric telescopic boom can only swing horizontally, the hoisting winch body 5 can also only swing horizontally. In addition, the telescopic end and the fixed end of the electric telescopic boom can be interchanged as needed. That is, the telescopic end of the electric telescopic boom is connected to the frame, and the fixed end is connected to the hoisting winch body 5.

[0035] Furthermore, the opposing electric telescopic booms are staggered. When one boom extends and the other extends by the same distance, the horizontal position of the hoisting winch body 5 is adjusted. Conversely, when one boom extends and the other extends by different distances, the rotation angle of the hoisting winch body 5 is adjusted, and the other two booms follow suit. In other words, when the four electric telescopic booms extend and retract according to commands, they can adjust the horizontal position and angle of the hoisting winch body 5. This allows the formwork 2, connected to the hoisting winch body 5 via the hoisting rope 10, to adjust its angle and position accordingly, enabling the formwork 2 to move relative to the wet joint and thus become parallel to the T-beam.

[0036] Two sets of first winches 3 and second winches 4 are used to connect to multiple T-beams. The outermost parts of the multiple T-beams are first T-beams 8 and second T-beams 9, respectively. The first winches 3 are arranged at both ends of the first T-beams 8, and the second winches 4 are arranged at both ends of the second T-beams 9. One set of first winches 3 and second winches 4 are connected by a first traction rope, and the other set of first winches 3 and second winches 4 are connected by a second traction rope. The first traction rope and the second traction rope are connected by a tie-connector. Both the first winches 3 and second winches 4 are conventional winches. This application does not limit the shape of the winches. A winch is also called a hoist.

[0037] The first and second traction ropes are connected at the same position by a tie-connector (rope). When the first winch 3 and the second winch 4 operate, the tie-connector rope moves along the length of the first and second traction ropes, that is, along the width direction of the multiple T-beams. The tie-connector rope serves to intercept the hoisting rope 10. When the hoisting rope 10 crosses the tie-connector rope, the hoisting rope 10 moves with the tie-connector rope to the position of the adjacent wet joint or one end of the multiple T-beams. During this process, the length of the hoisting rope 10 can be increased by releasing the line from the hoisting winch body 5.

[0038] At least two suspension rod holes 7 are arranged on the bottom wall of the template 2, with the two suspension rod holes 7 respectively located at both ends of the bottom wall; the template 2 is made of plywood spliced ​​together, and the bottom of the plywood is fixed by crossbeams and longitudinal beams. For example, the plywood is cut to the required size and then spliced. Next, crossbeams of length L (square timber) are arranged along the length of the plywood, and longitudinal beams of length B (square timber) are arranged along the width of the plywood, thereby completing the reinforcement and splicing of the plywood.

[0039] The lifting rod holes 7 are arranged on the longitudinal beams to ensure the stability of the hoisting.

[0040] When the template 2 is located at the target position, it forms a top-opening receiving space with the adjacent T-beams and is used to fill the receiving space. When the template 2 hangs down below the tie-up connector so that the suspension rope 10 crosses the tie-up connector, the first winch 3 performs a line-releasing action, and the second winch 4 performs a line-retracting action, so that the tie-up connector drives the suspension rope 10 to move in a preset direction, thereby adjusting the template 2 from its location at the wet joint to the edge of the adjacent wet joint or the connection of multiple T-beams.

[0041] The lifting ropes 10 are fixed to the lifting bars at both ends of each section of formwork 2, and the lifting bars are threaded into the lifting bar holes 7 of formwork 2. A winch is used to lower the two lifting ropes 10 connecting formwork 2 from the wet joint of the bridge deck to the bridge below, and the winch is automatically adjusted to the appropriate position. Once in position, the winch is used to lift the ropes upwards, and the lifting bars are properly secured to the steel pipes on the bridge deck. The tightness of the lifting bars is further checked to ensure that the bottom formwork does not sag, separate from the joint, or leak grout during concrete pouring.

[0042] After the first flange plate wet joint is poured and ready for demolding, the top support steel pipe is removed. The hoisting ropes 10 at both ends of the formwork 2 are lowered below the tie joint using a winch. The tie joint and hoisting ropes 10 are then moved to the lower end of the next flange plate wet joint to be constructed. Bridge workers use rope hooks to hook the hoisting ropes 10 to the next flange plate wet joint on the bridge deck. The hoisting ropes 10 are then secured to the winch for the next wet joint construction. The formwork 2 is then lifted to the second flange plate wet joint to be constructed. After the second wet joint is completed, the formwork 2 is disassembled and moved.

[0043] After the construction of the wet joint of the precast beam flange plate of a bridge span is completed, the formwork 2 of that span is removed. The first winch 3 and the second winch 4 are controlled to drive the tie connector and the hoisting rope 10 to the side of the side beam. The bridge deck construction personnel use rope hooks to hook the hoisting rope 10 to the bridge deck. Then the formwork 2 is pulled to the bridge deck in sequence to complete the removal of the single span formwork 2.

[0044] In one embodiment, a protective structure 6 is further included, which is disposed on the outermost side of the first T-beam and the second T-beam respectively, so that when the first traction rope moves, it contacts the side of the protective structure 6 away from the first T-beam to reduce friction; when the second traction rope moves, it contacts the side of the protective structure 6 away from the second T-beam to reduce friction.

[0045] For example, the protective structure 6 can be made of PVC pipe. Specifically, for the construction of wet joints in each span of the beam, two traction cable rings need to be installed at both ends of the beam. Before the precast T-beam is erected, the PVC pipe is fixed at the outer corner of the beam at both ends of the side beam (the area where the traction cable is arranged in contact with the beam). The DN110 PVC pipe is cut in the middle, and half of the PVC pipe is fixed to the T-beam using double-sided tape and adhesive tape to ensure that rotating the traction cable will not damage the beam.

[0046] During the T-beam erection, the construction workers on the piers surround the precast beam with traction cables. The two ends of the traction cables are connected to the two winches on the bridge deck. The tie-in connectors are fixed to the two ends of the traction cables. The winches are fixed to the precast bridge deck using pre-set bridge deck embedded parts, and the length of the traction cables is automatically adjusted to the appropriate position.

[0047] like Figure 6 As shown, in a second aspect, this application provides a method for adjusting the wet joint formwork of multiple T-beams, applied to the aforementioned installation and removal device for the wet joint formwork of multiple T-beams, the method comprising: S100: Obtain images of adjacent T-beams and the template, and obtain the distance between the wet joints of adjacent T-beams, as well as the width and length of the template.

[0048] Specifically, once the crane is in position, its camera takes a downward image of the T-beams. The image includes adjacent T-beams and wet joints, thus obtaining the distance between adjacent T-beams and consequently the distance between the wet joints between them.

[0049] It should be noted that when the distance between the camera and the bottom of the crane is fixed, the T-beam can be extended horizontally to obtain the vertical distance between the camera and the T-beam. Given the camera's pixel count For width cases, specify the wet joint width. Calculation: ; in, Indicates the equivalent focal length of the camera. This indicates the vertical distance from the camera to the top surface of the T-beam. This indicates the pixel width of the wet seam in the image.

[0050] Within the camera's field of view, construct a calibration object, such as a screw on a crane or a calibration plate. Given the dimensions of the calibration object, calculate the template dimensions (including its length and width) based on the ratio of the calibration object's dimensions to the template dimensions in the same image.

[0051] S200, based on the distance of the wet joint and the width of the template, determine the optimal distance between the template width direction and the adjacent T-beam.

[0052] Specifically, for example, if the distance between the wet joint and the template width is 100, the optimal distance is 0. If the template width is 95, then the distance between the template and the two sides of the wet joint is 2.5. That is, the template is centered at the wet joint.

[0053] S300, Obtain the current image of the adjacent T-beam and the template below the wet joint at the current wet joint.

[0054] Specifically, since the template needs to be moved downwards from the T-beam surface, the purpose is to align the template. Therefore, it is necessary to obtain current images of the adjacent T-beams and the template below the wet joint.

[0055] S400, Based on the current image, determine the positional relationship between the currently adjacent T-beams and the template.

[0056] Specifically, based on the current image, the positional relationship between the T-beam and the template can be determined. For example, the template is rotated at a certain angle so that, in the vertical direction, the edge or a corner of the template overlaps with the T-beam.

[0057] It should be noted that this situation may be caused by the crane not being parallel to the T-beam. Previously, the crane's direction needed to be manually adjusted to ensure that the formwork was parallel to the T-beam when lifted. Because the crane is not on a track on the T-beam, it can deviate during movement, resulting in non-parallelism. However, this non-parallelism is often unnoticed by workers, leading to the problem of the formwork partially overlapping the T-beam in the vertical direction. In this situation, to ensure the formwork smoothly enters the wet joint during lifting, the angle of the formwork needs to be adjusted.

[0058] S500, based on the optimal distance and the current positional relationship between the adjacent T-beams and the template, determine the horizontal adjustment angle of the template.

[0059] Specifically, as mentioned in the preceding steps, it is clear that the formwork and the T-beam may partially overlap. To straighten the formwork, it is necessary to determine the angle of rotation required for straightening. At this point, the known width and length of the formwork can be used to determine the current width and length of the formwork after the overlap, thereby knowing the width and length of the portion obscured by the T-beam.

[0060] Next, based on the width and length of the obscured portion, calculate the angle by which the template needs to be rotated.

[0061] The calculation formula is: ; in, Indicates the amount of occlusion in the width direction. Indicates the amount of occlusion along the length direction. This indicates the rotation angle that needs to be adjusted.

[0062] Calculate the angle between the current offset direction of the template and the X-axis, and convert it into a rotation angle. The direction of rotation is determined (left gear is counterclockwise, right gear is clockwise).

[0063] S600, adjust the angle according to the horizontal direction of the template and generate an adjustment command.

[0064] Specifically, the angle adjustment is based on the horizontal direction of the template, and the quantity is decomposed into four directions to form different lengths. Based on the different lengths, adjustment instructions are generated and sent to the electric telescopic rod so that the electric telescopic rod can extend or retract according to the instructions, thereby completing the horizontal angle adjustment of the hoisting winch body.

[0065] Specifically, in step S500, the horizontal adjustment angle of the template is obtained. Next, calculate the expansion / contraction at the four corners: ; ; ; ; in, This indicates the nominal rotation radius of the telescopic pole. This indicates the amount of extension or retraction of the east pole. This indicates the amount of extension or retraction of the west pole. This indicates the extension / retraction amount of the south pole. Indicates the extension / retraction of the north pole. This represents the translation amount in the X direction (east-west). This represents the translation in the Y direction (north-south). This indicates that the template's horizontal angle can be adjusted. This indicates the offset distance of the east pole to the north. This indicates the offset distance of the south pole to the east. For ease of understanding, the four electric telescopic poles are named according to the four cardinal directions: east, west, south, and north.

[0066] Translation term ( This controls the winch's linear movement in the horizontal plane, used for aligning wet joints. East-west translation. , The east and west poles extend simultaneously, and the winch moves eastward as a whole. The east and west poles retract synchronously, and the winch moves westward as a whole; it also moves north-south horizontally. , With the north pole extending and the south pole retracting, the winch shifts northward as a whole. The north pole retracts while the south pole extends, causing the winch to move south as a whole.

[0067] Rotational motion: When rotating counterclockwise : The east pole extends (pushing the winch westward); West pole retraction (winch to the west); South pole retracts (winch head north); The north pole retracts (the winch moves south).

[0068] Rotate clockwise : East pole retracts (winch moves eastward); The west pole extends (pushing the winch eastward); The south pole extends (pushing the winch southward); The north pole extends (pushing the winch northward).

[0069] Displacement distance ( The effect of ) is to increase the effective rotation radius: East / West poles: South / North pole: A staggered arrangement can improve the precision of rotation control (enhanced leverage effect), for example, the east pole can be offset 10mm to the north and the west pole 10mm to the south. mm.

[0070] Among them, the south pole symbol is reversed. The direction of the compensating south pole thrust is opposite to the coordinate definition (because the south pole's thrust direction is the same as the naming direction, its extension / retraction amount needs to be explicitly reversed). The installation direction is reversible, and the overall formula takes a negative sign to accommodate the installation method of the extension / retraction end on the frame.

[0071] The above formula enables simultaneous horizontal translation (X / Y direction) and rotation control, automatically compensates for the contradiction in the thrust direction of the south pole, and is compatible with misaligned arrangement and reversible installation direction.

[0072] like Figure 1 , Figure 4 and Figure 5 As shown, in a third aspect, this application provides an intelligent installation and dismantling construction process for multi-piece T-beam wet joint formwork, applied to the aforementioned multi-piece T-beam wet joint formwork installation and dismantling device. The construction process includes: The crane is moved to the first position, the template is connected to the hoisting rope, and the hoisting winch assembly is used to adjust the length of the hoisting rope so that the template is raised to the first target position; The template is fixed using the flange plate of the T-beam, and then the template is detached from the lifting rope. Using concrete, a receiving space with a top opening is formed by the formwork and the T-beam, and the receiving space is poured. Control the crane to move the T-beam to the second position, connect the template to the hoisting rope, repeat the actions of raising the template to the second target position, and fixing the template and pouring the filling space; After the wet joint of the adjacent T-beams has completed the concrete pouring and the concrete has reached the required solidification level, the crane is moved to the first position and connected to the formwork. The formwork is then separated from the solidified concrete, and the formwork is lowered until the lifting rope crosses the tie connector. The first winch performs the wire feeding action, and the second winch performs the wire reeling action, causing the tie connector to move to one side of the multiple T-beams. At the same time, the hoisting rope moves to one side, and the template moves to the adjacent wet joint, repeating the action of the T-beams and the template forming a receiving space. After all wet joints are fixed with concrete, the template is moved to the outermost side of the multiple T-beams using the first winch and the second winch, and the template is hooked up with ropes and removed.

[0073] It should be noted that, regarding the construction process, please refer to the description of the installation and removal device for the wet joint formwork of the multi-T beam; it will not be repeated here.

[0074] Figure 5 The diagram shows the template moving from position 1, through the connecting piece, forming the bending of the hoisting rope 2, and finally reaching position 3. Position 3 refers to the schematic diagram after the template is hooked up by the rope and a new template is hoisted at the adjacent wet joint.

[0075] Figure 6 The diagram shows the formwork removal after the concrete pouring for all T-beams with wet joints completed. Figure 6 In the diagram, the diamond-shaped frame refers to the tie-connector. Through the tie-connector, the hoisting rope is brought from position 1 to position 2, so that the worker can use the rope hook to lift the formwork to the second T-beam, thereby completing the dismantling of the formwork.

[0076] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0077] The various embodiments in this disclosure are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0078] The scope of protection of this disclosure is not limited to the embodiments described above. Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its scope and spirit. If such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, then the intent of this disclosure also includes such modifications and variations.

Claims

1. A device for installing and removing wet joint formwork for multi-piece T-beams, characterized in that, include: The crane is positioned between the wet joints of adjacent T-beams and can travel on the T-beams. The crane is connected to one end of a hoisting rope via a hoisting winch assembly, and the other end of the hoisting rope is connected to the formwork. The hoisting winch on the crane can adjust the length of the hoisting rope, thereby adjusting the height of the formwork so that the formwork is positioned at the target position between the adjacent T-beams. Two sets of first and second winches are provided for connection to multiple T-beams. The outermost parts of the T-beams are designated as first and second T-beams, respectively. First winches are arranged at both ends of the first T-beams, and second winches are arranged at both ends of the second T-beams. One set of first and second winches is connected by a first traction rope, and the other set of first and second winches is connected by a second traction rope. The first and second traction ropes are connected by a tie-connector. When the template is located at the target position, it is used to form a top-opening receiving space with the adjacent T-beam, and to pour the receiving space; When the template hangs down below the tie-up connector so that the hoisting rope crosses the tie-up connector, the first winch performs a line release action, and the second winch performs a line take-up action, so that the tie-up connector drives the hoisting rope to move in a preset direction, thereby adjusting the template from its location at the wet joint to the edge of the adjacent wet joint or the connection of multiple T-beams; The hoisting winch assembly includes a hoisting winch body, a camera, a hoisting winch position adjustment mechanism, and a control system. The hoisting winch body is connected to the hoisting rope and controls the hoisting action of the hoisting rope; The camera is connected to the control system and is used to capture images of the template and the adjacent T-beams, forming an image, and transmitting it to the control system. The control system is connected to the hoisting winch position adjustment mechanism and is used to receive the image and generate a position adjustment command based on the image. The hoisting winch position adjustment mechanism is located at the center of the crane and connected to the hoisting winch body. It is used to receive the adjustment command and adjust the position of the hoisting winch body. The crane is equipped with a hoisting winch assembly on its roof, and the two wheels of the crane are respectively arranged on the adjacent T-beams so that the central part of the crane is suspended between the adjacent T-beams. The bottom wall of the template has at least two suspension rod holes, which are respectively located at both ends of the bottom wall; the template is made of plywood splicing, and the bottom of the plywood is fixed by crossbeams and longitudinal beams; It also includes a protective structure, which is disposed on the outermost side of the first T-beam and the second T-beam, so that when the first traction rope moves, it contacts the side of the protective structure away from the first T-beam to reduce friction; when the second traction rope moves, it contacts the side of the protective structure away from the second T-beam to reduce friction.

2. The multi-piece T-beam wet joint formwork installation and removal device according to claim 1, characterized in that, The edge of the template is provided with closed-cell foam strips; when the template is located at the target position, the closed-cell foam strips seal the gap between the template and the T-beam.

3. The multi-piece T-beam wet joint formwork installation and removal device according to claim 1, characterized in that, The hoisting winch position adjustment mechanism includes multiple electric telescopic rods; the fixed end of the electric telescopic rod is connected to the top of the crane frame, and the telescopic end of the electric telescopic rod is connected to the hoisting winch body in a horizontal swing direction. There are four electric telescopic rods, which are connected to the frame and the hoisting winch body in four directions respectively, and the two electric telescopic rods in opposite directions are staggered.

4. The multi-piece T-beam wet joint formwork installation and removal device according to claim 3, characterized in that, The top of the frame is square.

5. A method for adjusting the wet joint template of a multi-piece T-beam, characterized in that, The method of the multi-piece T-beam wet joint formwork installation and removal device applied to any one of claims 1-4 includes: Acquire images of adjacent T-beams and an image of the template to obtain the distance between the wet joints of adjacent T-beams, as well as the width and length of the template; Based on the distance of the wet joint and the width of the template, determine the optimal distance between the template width direction and the adjacent T-beam; Obtain the current image of the current wet joint, the adjacent T-beam, and the template below the wet joint; Based on the current image, determine the positional relationship between the currently adjacent T-beams and the template; Based on the optimal distance and the current positional relationship between the adjacent T-beams and the template, the horizontal adjustment angle of the template is determined; Adjust the angle according to the horizontal direction of the template and generate adjustment instructions.

6. A smart installation and dismantling construction process for wet joint formwork of multi-piece T-beams, characterized in that, The construction process of the multi-piece T-beam wet joint formwork installation and removal device applied to any one of claims 1-4 includes: The crane is moved to the first position, the template is connected to the hoisting rope, and the hoisting winch assembly is used to adjust the length of the hoisting rope so that the template is raised to the first target position; The template is fixed using the flange plate of the T-beam, and then the template is detached from the lifting rope. Using concrete, a receiving space with a top opening is formed by the formwork and the T-beam, and the receiving space is poured. Control the crane to move the T-beam to the second position, connect the template to the hoisting rope, repeat the actions of raising the template to the second target position, and fixing the template and pouring the filling space; After the wet joint of the adjacent T-beams has completed the concrete pouring and the concrete has reached the required solidification level, the crane is moved to the first position and connected to the formwork. The formwork is then separated from the solidified concrete, and the formwork is lowered until the lifting rope crosses the tie connector. The first winch performs the wire feeding action, and the second winch performs the wire reeling action, causing the tie connector to move to one side of the multiple T-beams. At the same time, the hoisting rope moves to one side, and the template moves to the adjacent wet joint, repeating the action of the T-beams and the template forming a receiving space. After all wet joints are fixed with concrete, the template is moved to the outermost side of the multiple T-beams using the first winch and the second winch, and the template is hooked up with ropes and removed.

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