An installation device and method for prefabricated components of prefabricated bridge deck systems.

Abstract

This invention discloses an installation device and method for prefabricated components of prefabricated bridge deck systems. The device includes a fixed gantry and a movable gantry. The fixed gantry includes an outer column-top beam, and the movable gantry includes a folding column-top beam. The outer column-top beam and the folding column-top beam are connected. The bottom ends of the outer column-top beam are respectively provided with an outer telescopic support leg and a middle support leg. One end of the folding column-top beam is provided with an inner support leg. The bottom of the inner support leg is provided with an inner support seat and an inner drive wheel. The bottom of the middle support leg is provided with a middle support seat and a middle drive wheel. Guide rails are provided on the outer column-top beam and the folding column-top beam. A moving trolley is provided on the guide rails. A winch is provided on the moving trolley. The winch is connected to a hanger. The installation device and method for prefabricated components of prefabricated bridge deck systems of this invention are convenient to use, have high safety, and high installation positioning accuracy.

Description

Technical Field

[0001] This invention belongs to the field of construction technology. Specifically, this invention relates to an installation device and method for prefabricated components of prefabricated bridge deck systems. Background Technology

[0002] In high-speed railway construction, high-speed railway bridges feature a bridge deck structure consisting of two cable troughs on each side, housing high-voltage and low-voltage cables respectively. The cross-section of this structure is "mountain"-shaped, with the side walls high and the middle wall low, featuring a thick layer of concrete at the bottom. Pedestrian walkways are laid between the side walls along the railway line. Initially, this bridge deck system was constructed using cast-in-place formwork. Later, the outer walls were prefabricated as shielding panels before installation. In recent years, a prefabricated "mountain"-shaped structure for the entire bridge deck system has emerged, with a standard pitch of 2 meters. The installation method involves transporting the prefabricated structure to the work surface using a crane, roughly positioning it, adjusting it with specialized lifting equipment, and fixing it with bolts. The gap between the lower part and the beam surface is filled with grout. The entire installation process is manual, making alignment difficult, resulting in low efficiency, numerous construction steps, and a long construction period. Furthermore, the beam transport vehicle continues to operate while the components are being installed, and the lifting equipment must stop beside the beam to avoid the transport vehicle, posing a significant safety hazard. Based on the actual construction situation, there is a need for equipment that can automatically lift and precisely position components and avoid beam transport vehicles.

[0003] Invention patent CN109972520A, published on July 5, 2019, discloses a construction method for a precast bridge deck installation structure. This method includes the following steps: 1) construction preparation; 2) component preparation; 3) hoisting and positioning of the precast bridge deck; 4) installation of the cantilever end connection structure; 5) grouting of the intermediate joints; 6) grouting at the cantilever end joints; and 7) construction of the guardrail foundation and guardrail posts. This construction method does not improve the safety and alignment accuracy of the installation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an installation device and method for prefabricated components of prefabricated bridge deck systems that is convenient to use, highly safe, and has high installation and positioning accuracy.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This type of installation equipment for prefabricated components of prefabricated bridge deck systems includes a fixed gantry and a movable gantry. The fixed gantry includes an outer column-top beam, and the movable gantry includes a folding column-top beam. The outer column-top beam and the folding column-top beam are connected. The bottom ends of the outer column-top beam are respectively provided with an outer telescopic support leg and a middle support leg. One end of the folding column-top beam is provided with an inner support leg. The bottom of the inner support leg is provided with an inner support seat and an inner drive wheel. The bottom of the middle support leg is provided with a middle support seat and a middle drive wheel. Guide rails are provided on the outer column-top beam and the folding column-top beam. A moving trolley is provided on the guide rails. A winch is provided on the moving trolley. The winch is connected to a hanger.

[0007] The mobile trolley includes a traveling beam, a moving motor on the side of the traveling beam, the traveling beam cooperating with a guide rail, longitudinal beams connecting the traveling beams, and slide rails on the longitudinal beams. The guide rails and slide rails are orthogonally arranged. A mounting seat is provided on each slide rail, the bottom of the mounting seat cooperating with the slide rail. A winch is mounted on the mounting seat, and a first hydraulic cylinder is provided on the side of the mounting seat. There are four slide rails, evenly spaced, with mounting seats at both ends of the guide rails, four winches, and two hangers.

[0008] The hanger is horizontally arranged, with a lifting hole at the top. The lifting holes are symmetrically arranged, and the winch is connected to the lifting hole. A track is provided on the inner side of the hanger, and a second hydraulic cylinder is provided in the middle of the hanger. The second hydraulic cylinder includes a tilt sensor. A first telescopic frame and a second telescopic frame are respectively provided at both ends of the hanger. The two ends of the second hydraulic cylinder are respectively connected to the first telescopic frame and the second telescopic frame. The tops of the first telescopic frame and the second telescopic frame are engaged with the track, and the sides of the first telescopic frame and the second telescopic frame are provided with pin holes, and pins are provided in the pin holes.

[0009] The intermediate drive wheel is located at the bottom of the intermediate support leg and is connected to a first drive motor. The intermediate support seat is located on one side of the intermediate drive wheel, and a first hydraulic rod is connected to the top of the intermediate drive wheel. The inner drive wheel is located at the bottom of the inner support leg and is connected to a second drive motor. The inner support seat is located on one side of the inner drive wheel, and a second hydraulic rod is connected to the top of the inner drive wheel. A rotating seat is provided between the inner drive wheel and the inner support leg, and a third drive motor is connected to the rotating seat.

[0010] The outer column top beam is provided with a pivot and an automatic latch on both sides. The outer column top beam is connected to the folding column top beam through the pivot. The fixed gantry is hinged to the movable gantry.

[0011] The length of the guide rail is greater than the distance between the outer telescopic support leg and the inner support leg. A limiting block is provided at one end of the top of the outer column top beam, and a guide plate is provided at the bottom of the first telescopic frame.

[0012] The mobile trolley is provided with a prefabricated component below it. The prefabricated component has a lifting hole on its side. The pin passes through the pin hole and extends into the lifting hole. The first telescopic frame abuts against one side of the prefabricated component, and the second telescopic frame abuts against the other side of the prefabricated component. The bottom of the lifting frame is provided with a support leg, and the bottom end of the support leg abuts against the top of the prefabricated component.

[0013] The bridge deck is equipped with prefabricated components, which are equipped with auxiliary laser sensors. The bottom of the outriggers is equipped with a first laser sensor, and the bottom of the first telescopic frame is equipped with a second laser sensor.

[0014] The middle support leg is provided with guide wheels on its side. The guide wheels are arranged in pairs and abut against the side of the prefabricated component that has been installed.

[0015] The installation method for prefabricated components of prefabricated bridge deck systems, implemented using the same installation equipment, includes the following steps:

[0016] S1. Move the equipment to the precast component to be installed, adjust the outer telescopic outriggers to press on the installed precast component, and start the support base to support the ground.

[0017] S2. Install an auxiliary laser sensor at one end of the B wall where the precast components have been installed. Transport the precast components to the bottom of the hanger using a component transfer vehicle. Adjust the moving trolley to correspond with the precast components.

[0018] S3. Start the first hydraulic cylinder to widen the distance between the two hangers, and start the winch to lower the hanger until the pin hole is aligned with the lifting hole;

[0019] S4. Start the second hydraulic cylinder to reduce the distance between the hangers so that the first telescopic frame and the second telescopic frame are respectively close to both sides of the precast component, and insert the pin into the pin hole and the lifting hole.

[0020] S5. Start the winch to lift the precast component, and start the moving trolley to move it to contact the limit block;

[0021] S6. Start the winch and lower the precast component to the set distance, then stop the winch.

[0022] S7. Start the mobile trolley and move it towards the center of the bridge until it stops at the set distance;

[0023] S8. The tilt sensor micro-motion adjusts the precast component to a horizontal state via a winch.

[0024] S9. Start the first hydraulic cylinder to drive the four mounting seats to move synchronously to the set distance and then stop.

[0025] S10. Remove the pin, place the precast component and shim it firmly;

[0026] S11. Reset the moving trolley, crane and winch, and install anchor bolts to fix the prefabricated components;

[0027] S12. Retract the support base to allow the drive wheels to contact the ground, and move the mobile device to the next workstation;

[0028] S13. Repeat steps S1-S12 to complete the assembly process of the prefabricated components.

[0029] The technical effects of this invention are as follows: The installation equipment for prefabricated components of prefabricated bridge deck systems, employing a rational structural design, achieves a reasonable transportation method and route design for the prefabricated components. Through the structural design of the gantry structure, the mobile trolley and its components, and the hanger, not only is the hoisting and lifting process of the prefabricated components realized, but also the position adjustment of the prefabricated components is achieved, meeting the movement requirements of the prefabricated components during installation and alignment. Furthermore, the inclusion of multiple laser sensors reduces the difficulty of prefabricated component alignment and improves installation positioning accuracy. The design of a foldable movable gantry allows for reducing equipment space according to on-site conditions, safely and efficiently avoiding the passage of beam transport vehicles, ensuring normal passage for beam transport operations. The support base and drive wheels allow the equipment to switch between fixed and mobile states, greatly facilitating its use. Its installation method replaces the complex and tedious manual work process, reducing operational difficulty, ensuring coordinated and orderly installation of prefabricated components, improving installation accuracy, reducing labor intensity, saving construction time, and ensuring safe and orderly construction operations. Attached Figure Description

[0030] This manual includes the following figures, which illustrate the following:

[0031] Figure 1 This is a perspective view of the installation equipment for prefabricated components of prefabricated bridge deck systems according to the present invention.

[0032] Figure 2 This is a side view of the installation equipment for prefabricated components of prefabricated bridge deck systems according to the present invention;

[0033] Figure 3 This is a top view schematic diagram of the installation equipment for prefabricated components of prefabricated bridge deck systems according to the present invention;

[0034] Figure 4 This is a side view of the hanger of the present invention;

[0035] Figure 5 This is a side view of the mobile vehicle of the present invention;

[0036] Figure 6This is a top view of the hanger of the present invention;

[0037] Figure 7 This is a side view of the operation process of the installation equipment for prefabricated components of assembled bridge deck systems according to the present invention;

[0038] Figure 8 This is a front view of the operation process of the installation equipment for prefabricated components of prefabricated bridge deck systems according to the present invention;

[0039] Figure 9 This is a folded structural diagram of the installation equipment for prefabricated components of prefabricated bridge deck systems according to the present invention.

[0040] The diagram is marked as follows: 1. Fixed gantry; 101. Movable gantry; 102. Outer connecting frame; 103. Guide rail; 104. Folding column top beam; 105. Outer column top beam; 106. Limiting block; 107. Inner connecting frame; 108. Automatic latch; 109. Rotating shaft; 110. Movable shaft; 2. Moving trolley; 201. First hydraulic cylinder; 202. Slide rail; 203. Traveling beam; 204. Longitudinal beam; 205. Winch; 206. Mounting base; 207. Moving motor; 3. Hanger; 301. Lifting hole; 302. First telescopic frame; 303. Second telescopic frame; 304. Outrigger; 305. Pin hole; 306. Pin shaft; 307. Guide. 308. Plate; 309. Track; 310. Second hydraulic cylinder; 311. Track beam; 312. End beam; 313. First laser sensor; 314. Second laser sensor; 4. Outer telescopic outrigger; 401. Pad beam; 5. Middle outrigger; 501. Middle drive wheel; 502. Middle support seat; 503. Crossbeam; 504. Guide wheel; 505. First drive motor; 506. First hydraulic rod; 6. Inner outrigger; 601. Inner drive wheel; 602. Inner support seat; 603. Second drive motor; 604. Third drive motor; 605. Rotary seat; 606. Connecting beam; 607. Second hydraulic rod; 7. Auxiliary laser sensor; 8. Precast component. Detailed Implementation

[0041] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0042] like Figures 1 to 9As shown, the installation equipment for prefabricated components of prefabricated bridge deck systems includes a fixed gantry 1 and a movable gantry 101. The fixed gantry 1 includes an outer column top beam 105, and the movable gantry 101 includes a folding column top beam 104. The outer column top beam 105 is connected to the folding column top beam 104. The bottom ends of the outer column top beam 105 are respectively provided with an outer telescopic support leg 4 and a middle support leg 5. The bottom of one end of the folding column top beam 104 is provided with an inner support leg 6. The bottom of the inner support leg 6 is provided with an inner support seat 602 and an inner drive wheel 601. The bottom of the middle support leg 5 is provided with a middle support seat 502 and a middle drive wheel 501. The outer column top beam 105 and the folding column top beam 104 are provided with guide rails 103. The guide rails 103 are provided with a moving trolley 2. The moving trolley 2 is provided with a winch 205. The winch 205 is connected to a hanger 3.

[0043] like Figure 2 As shown, the space below the fixed gantry 1 is for installing the precast component 8, and the space below the movable gantry 101 is for placing the transfer vehicle. The fixed gantry 1 and the movable gantry 101 are frame structures. Guide rails 103 are installed on the upper part of the outer column top beam 105 and the folding column top beam 104. The guide rails 103 on the same side of the gantry are connected in a straight line. The fixed gantry 1 and the movable gantry 101 are hinged to realize the folding of the movable gantry 101, which reduces the space occupied by the equipment and solves the problem of difficulty in avoiding transport vehicles due to the limited space on the bridge deck. The above-mentioned support base and drive wheel settings allow the equipment to switch between fixed and movable states, which facilitates the use of the equipment on the bridge deck. The hoisting and lifting process of the precast component 8 is achieved by the winch 205 and the gantry 3. The horizontal movement of the precast component 8 is achieved by the movement of the moving trolley 2 on the guide rail 103, and the longitudinal movement of the precast component 8 is achieved by the movement of the winch 205 along the slide rail 202.

[0044] like Figures 1 to 3 As shown, a connecting beam 606 is provided between the inner support legs 6, and a crossbeam 503 is fixedly connected between the outer telescopic support legs 4 and the middle support leg 5; an outer connecting frame 102 is connected between the outer column top crossbeams 105, a movable shaft 110 is provided at the end of the folding column top crossbeam 104, and an inner connecting frame 107 is provided between the folding column top crossbeams 104, which is connected to the movable shaft 110. The crossbeam 503 serves as a reinforcing structure between the outer telescopic support legs 4 and the middle support leg 5, improving the structural strength of the equipment support part; when the equipment is unfolded, the inner connecting frame 107 serves as a supporting structure, ensuring that the two guide rails 103 of the equipment remain parallel, thereby ensuring the normal operation of the mobile trolley 2; when the equipment is folded, the two ends of the inner connecting frame 107 can rotate around the movable shaft 110 to realize the folding function.

[0045] like Figure 1 and Figure 5As shown, the mobile trolley 2 includes a traveling beam 203, a moving motor 207 on the side of the traveling beam 203, the traveling beam 203 cooperating with the guide rail 103, and a longitudinal beam 204 connecting the traveling beams 203. A slide rail 202 is provided on the longitudinal beam 204, and the guide rail 103 and the slide rail 202 are orthogonally arranged. A mounting seat 206 is provided on the slide rail 202, and the bottom of the mounting seat 206 cooperates with the slide rail 202. A winch 205 is provided on the mounting seat 206, and a first hydraulic cylinder 201 is provided on the side of the mounting seat 206. There are four slide rails 202, which are equally spaced. The mounting seats 206 are located at both ends of the guide rail 103. There are four winches 205 and two hangers 3. The traveling beam 203 cooperates with the guide rail 103 to guide the movement of the mobile trolley 2, and the mounting base 206 cooperates with the slide rail 202 to guide the winch 205. The winch 205 is connected to the hanger 3, and the distance between the two hangers 3 is widened and narrowed by the first hydraulic cylinder 201. This not only facilitates the positioning process of the precast component 8, but can also be applied to the installation of precast components 8 of different lengths. The bottom of the mounting base 206 cooperates with the two guide rails 103 to ensure the stability of the movement of the mounting base 206 and the winch 205. Each set of winches 205 is controlled by a set of first hydraulic cylinders 201 to move longitudinally, which can adapt to different component lengths and can also be finely adjusted longitudinally during component installation. Two winches 205 correspond to the two lifting holes 301 of one hanger 3. The two hangers 3 respectively lift the two ends of the precast component 8. That is, the position movement of the precast component 8 is achieved by the lifting of four winches 205, which can greatly ensure the flatness and accuracy of the installation.

[0046] like Figures 1 to 4 As shown, the hanger 3 is horizontally arranged, with a lifting hole 301 at the top. The lifting holes 301 are symmetrically arranged, and the winch 205 is connected to the lifting hole 301. A track 308 is provided on the inner side of the hanger 3, and a second hydraulic cylinder 309 is provided in the middle of the hanger 3. The second hydraulic cylinder 309 includes a tilt sensor. A first telescopic frame 302 and a second telescopic frame 303 are respectively provided at both ends of the hanger 3. The two ends of the second hydraulic cylinder 309 are respectively connected to the first telescopic frame 302 and the second telescopic frame 303. The tops of the first telescopic frame 302 and the second telescopic frame 303 are engaged with the track 308. The sides of the first telescopic frame 302 and the second telescopic frame 303 are provided with pin holes 305, and pins 306 are provided in the pin holes 305.

[0047] like Figure 4 and Figure 6As shown, the frame of the hanger 3 consists of a track beam 310 and two end beams 311. The track 308 is located inside the end beams 311. The second hydraulic cylinder 309 is fixed in the middle to the frame of the hanger 3. Both ends of the second hydraulic cylinder 309 are connected to two types of first telescopic frames 302, which can be opened or closed. Each first telescopic frame 302 has a pin hole 305 at its lower part. The pin hole 305 corresponds to the lifting hole 301 of the precast component 8. When the pin is inserted into the pin shaft 306 and locked, the precast component 8 can be hung and moved with the hanger 3. The length of the second telescopic frame 303 does not exceed the lower part of the lifted precast component 8. The length of the first telescopic frame 302 can extend to the lower part of the precast component 8 when it is lifted. A second laser sensor 313 is also installed at its bottom, which can sense the distance between it and the side of the bridge's wing plate to determine the lateral position of the precast component 8 during installation. The symmetrically arranged lifting holes 301 are used to ensure the stability of the precast component 8. The top of the first telescopic frame 302 has a T-shaped structure. The first telescopic frame 302 and the second telescopic frame 303 are moved on the track 308 by the drive of the second hydraulic cylinder 309. That is, the function of expanding and contracting the distance between the first telescopic frame 302 and the second telescopic frame 303 is realized. This not only realizes the clamping and fixing of the precast component 8 during hoisting, but can also be applied to the hoisting of precast components 8 of different widths. Among them, the tilt sensor can detect whether the component is tilted and adjust it by the action of the four winches 205.

[0048] like Figure 1 and Figure 2As shown, the intermediate drive wheel 501 is located at the bottom of the intermediate support leg 5, and is connected to a first drive motor 505. The intermediate support seat 502 is located on one side of the intermediate drive wheel 501, and a first hydraulic rod 506 is connected to the top of the intermediate drive wheel 501. The inner drive wheel 601 is located at the bottom of the inner support leg 6, and is connected to a second drive motor 603. The inner support seat 602 is located on one side of the inner drive wheel 601, and a second hydraulic rod 507 is connected to the top of the inner drive wheel 601. A rotating seat 605 is provided between the inner drive wheel 601 and the inner support leg 6, and the rotating seat 605 is connected to a third drive motor 604. The outer telescopic support leg 4 is a hydraulically controlled telescopic structure, with a support beam 401 connected to its lower part. The support beam 401 and the outer telescopic support leg 4 are connected by a spherical hinge. The intermediate drive wheel 501 can steer, and the intermediate support seat 502 can extend and retract vertically. The intermediate support seat 502 and the support leg 304 are connected by a spherical hinge. The inner drive wheel 601 can turn, and the inner support seat 602 can extend and retract vertically. The inner support seat 602 and the outrigger 304 are connected by a spherical hinge. The spherical hinge between the support seat or pad beam 401 and the connected outrigger 304 can rotate within a certain range, which can adapt to slight inclinations or unevenness of the contact surface, and provide effective support when the beam surface is uneven. The middle support leg 5 and the inner support leg 6 form the overall support structure of the equipment. By designing the switching between the drive wheel and the support base, the equipment can be implemented in two states: moving and fixed. When the equipment is hoisted, the support base supports the entire equipment under hydraulic drive, and the drive wheel, being off the ground, cannot bear any force, thus fixing the entire equipment and ensuring stable operation during the hoisting process. When the equipment is moved to a different work position or transported, the drive wheel supports the entire equipment by lifting the support base, realizing the equipment's movement function. When the equipment needs to be folded, the third drive motor 604 and the rotating seat 605 enable the inner drive wheel 601 to turn, and the second drive motor 603 can drive the inner drive wheel 601 to move, providing power for the folding process.

[0049] like Figure 9As shown, the outer column top beam 105 has a rotating shaft 109 and an automatic latch 108 on both sides. The outer column top beam 105 and the folding column top beam 104 are connected by the rotating shaft 109, and the fixed gantry 1 and the movable gantry 101 are hinged. The above structure realizes the deformation and folding of the equipment. When the automatic latch 108 is in contact, the folding column top beam 104, connected to the inner connecting frame 107, can rotate by flexing the rotating shaft 109. The deformation and folding retraction steps and precautions of the equipment are as follows: First, move the moving trolley 2 to the outermost side of the equipment and stop it. Then, the inner support seat 602 of the equipment is automatically lifted off the ground by hydraulic drive, so that the inner drive wheel 601 touches the ground. Note that the outer telescopic leg 4 and the middle leg 5 must not leave the ground and should remain in the original ground-touching state. Then, the automatic latch 108 device on the equipment is operated by remote control to automatically pull out the latch and unlock the movable gantry 101. Finally, rotate the inner drive wheel 601 of the equipment by a certain angle, start the two sets of inner drive wheels 601 on the inner support leg 6 to rotate and move. The movable gantry 101 moves towards the middle support leg 5 of the equipment with the pivot 109 as the center and closes until the movable gantry 101 automatically folds into place, and the equipment is folded back. The above operation can be reversed to unfold the equipment.

[0050] like Figure 2 As shown, the length of the guide rail 103 is greater than the distance between the outer telescopic support leg 4 and the inner support leg 6. A limiting block 106 is provided at one end of the top of the outer column top beam 105, and a guide plate 307 is provided at the bottom of the first telescopic frame 302. The above structure is used to facilitate the positioning process of the precast component 8 during installation, as follows: When the moving trolley 2 stops at the limiting block 106, and the gantry 3 is lowered at the same time, since the length of the guide rail 103 is greater than the distance between the outer telescopic support leg 4 and the inner support leg 6, the first telescopic frame 302 is located on the side of the bridge during this process. When the moving trolley 2 moves towards the center of the bridge deck, the side of the guide plate 307 can contact the outer edge of the bridge. At this time, one side of the precast component 8 will be aligned with one side of the outer edge of the bridge, thus completing the initial positioning of the precast component 8. The limiting block 106 serves as a limiting structure for the mobile trolley 2. When one side of the mobile trolley 2 abuts against the limiting block 106, the hoisting and lowering process of the precast component 8 can begin. Simultaneously, the limiting block 106 prevents the mobile trolley 2 from detaching from the track 308. During hoisting, the bottom end of the precast component 8 is higher than the guide plate 307. During the hoisting and lowering process, the guide plate 307 abuts against the outer edge of the bridge, thus determining the position of the precast component 8.

[0051] like Figure 7 and Figure 8As shown, a prefabricated component 8 is provided below the mobile trolley 2. The prefabricated component 8 has a lifting hole on its side. The pin 306 passes through the pin hole 305 and extends into the lifting hole. The first telescopic frame 302 abuts against one side of the prefabricated component 8, and the second telescopic frame 303 abuts against the other side of the prefabricated component 8. The bottom of the hanger 3 is provided with a support leg 304, and the bottom of the support leg 304 abuts against the top of the prefabricated component 8. The outrigger 304 stabilizes the precast component 8 and is used to install the first laser sensor 312. The lifting hole serves as a structure for fixing the precast component 8 and is locked by inserting a pin 306. The first telescopic frame 302 and the second telescopic frame 303 respectively abut against both sides of the precast component 8, stabilizing the precast component 8. When the hanger 3 lifts the precast component 8, the two outriggers 304 abut against the top of the B wall, stabilizing the precast component 8 and ensuring its levelness. The precast component 85 has a "mountain" shaped cross section, with the B wall in the middle. The outrigger 304 corresponds to the B wall position of the precast component 8. The first laser sensor 312 is installed at the bottom of the outrigger 304, which can sense the distance between itself and the auxiliary laser sensor 7 installed on the B wall of the precast component. Through the automatic adjustment of the first hydraulic cylinder 201, the longitudinal positioning of the precast component 8 can be achieved.

[0052] like Figure 7 As shown, prefabricated components are installed on the bridge deck. An auxiliary laser sensor 7 is installed on the prefabricated components. A first laser sensor 312 is installed at the bottom of the outrigger 304, and a second laser sensor 313 is installed at the bottom of the first telescopic frame 302. The measuring direction of the first laser sensor 312 is perpendicular to the side of the prefabricated component 8, that is, perpendicular to the side of the bridge. During the hoisting and lowering process of the prefabricated component 8, the second laser sensor 313 is used to detect whether the prefabricated component 8 has reached the outer edge of the bridge. At the same time, when the second laser sensor 313 reaches a set distance from the outer edge of the bridge, it sends a signal. The auxiliary laser sensor 7 corresponds to the first laser sensor 312. When the prefabricated component 8 reaches a set distance from the prefabricated component, the first sensor sends a signal to stop the moving trolley 2.

[0053] like Figure 1 As shown, the middle support leg 5 is equipped with guide wheels 504 on its side. The guide wheels 504 are arranged in pairs and abut against the side of the installed precast component. When the equipment travels longitudinally along the bridge deck, the guide wheels 504 can abut against the side of the installed component, thus providing guidance. The paired guide wheels 504 increase the contact area with the precast component 8, which helps to further improve the accuracy of the movement direction.

[0054] The installation method for prefabricated components of prefabricated bridge deck systems, implemented using the aforementioned installation equipment for prefabricated components of prefabricated bridge deck systems, includes the following steps:

[0055] S1. Move the equipment to the precast component 8 to be installed, adjust the outer telescopic support leg 4 to press on the installed precast component, and start the support seat to support the ground.

[0056] S2. Install an auxiliary laser sensor 7 at one end of the B wall where the precast components have been installed. Transport the precast components 8 to the bottom of the hanger 3 using a component transfer vehicle. Adjust the moving trolley 2 to correspond with the precast components 8.

[0057] S3. Start the first hydraulic cylinder 201 to widen the distance between the two hangers 3, and start the winch 205 to lower the hanger 3 until the pin hole 305 is aligned with the lifting hole;

[0058] S4. Start the second hydraulic cylinder 309 to reduce the distance between the hangers 3 so that the first telescopic frame 302 and the second telescopic frame 303 are respectively attached to both sides of the precast component 8, and insert the pin 306 into the pin hole 305 and the lifting hole.

[0059] S5. Start the winch 205 to lift the precast component 8, and start the moving trolley 2 to move until it abuts against the limit block 106;

[0060] S6. Start the winch 205 to lower the precast component 8 to the set distance and then stop the winch 205;

[0061] S7. Start the mobile trolley 2 and move it towards the center of the bridge until the set distance is reached and then stop.

[0062] S8, the tilt sensor micro-motion adjusts the precast component 8 to a horizontal state via winch 205;

[0063] S9. Start the first hydraulic cylinder 201 to drive the four mounting seats 206 to move synchronously to the set distance and then stop.

[0064] S10. Release pin 306, place precast component 8 and shim it firmly;

[0065] S11. Reset the moving trolley 2, the hanger 3 and the winch 205, and install anchor bolts to fix the prefabricated components 8;

[0066] S12. Retract the support base to allow the drive wheels to contact the ground, and move the mobile device to the next workstation;

[0067] S13. Repeat steps S1-S12 to complete the assembly process of prefabricated component 8.

[0068] The specific operation process is as follows:

[0069] 1. Initial preparations:

[0070] Move the equipment to the installation position of the precast component 8, extending the telescopic outriggers 4 on the outside of the equipment. The bottom surface of the outriggers 304 should press against the bottom surface of the installed component. Adjust all outriggers 304 to contact the ground. The lower end of each outrigger 304 has a ball joint structure to accommodate slight tilts or unevenness of the contact surface. Install the auxiliary laser sensor 7 at the end of the B-wall of the installed component, ensuring it is flush with the edge. Adjust the adjusting bolts on the auxiliary laser sensor 7 to secure it to the installed precast component. Adjust the four winches 205 to appropriate positions using the first hydraulic cylinder 201, according to the dimensions of the component being hoisted.

[0071] 2. Lifting process:

[0072] After the installation equipment is stably in place, the component transfer vehicle is positioned below the folding column top beam 104. Then, the mobile trolley 2 on the equipment is moved to the appropriate position of the movable gantry 101, and the hanger 3 is lowered. At the same time, the first telescopic frame 302 of the hanger 3 is fully opened and lowered until the pin hole 305 is aligned with the lifting hole 301 of the precast component 8. With manual assistance, the pin shaft 306 on the first telescopic frame 302 of the hanger 3 is aligned with the lifting hole of the component and locked. Then, the first telescopic frame 302 of the hanger 3 is fully retracted so that the inner side of each first telescopic frame 302 is close to the outer side of the precast component 8. The lifting device of the mobile trolley 2 lifts the hanger 3 and the precast component 8 and moves them to the appropriate position in the installation area.

[0073] 3. Install and adjust prefabricated components 8:

[0074] First, the trolley 2, carrying the precast component 8, moves to the upper limit block 106 of the equipment and sends a signal to stop. At this time, the outermost edge of the precast component 8 extends about 40-50mm beyond the outer edge of the bridge. Then, the hanger 3 is slowly and steadily lowered until the first laser sensor 312 detects the outer edge of the bridge and sends a signal. Then, the trolley 2 is slowly started and moved towards the inner side of the bridge center until the first laser sensor 312 detects that the distance to the outer edge of the bridge is the set distance, and then sends a signal to stop the trolley 2. At this time, the guide plate 307 under the hanger 3 is in contact with the outer edge of the bridge. Since the inner side of the guide plate 307 is flush with the side of the precast component 8 during installation, it can be determined that the outer edge of the bridge is aligned with the outermost side of the precast component 8. Then, according to the tilt settings on the two hangers 3 respectively... The angle sensor makes a micro-adjustment to the state of the precast component 8 (even from tilted to horizontal). Then, through the action of four sets of first hydraulic cylinders 201, the precast component 8 is lifted and moved towards the precast component 8 that has been installed, until the second laser sensor 313 detects the set distance between it and the auxiliary laser sensor 7 (i.e., the distance between the two sensors is 20mm), at which point the movement stops. Then, the hanger 3 is lowered until the precast component 8 is in a suitable leveling position and it is checked whether it is properly shimmed. The pin 306 between the precast component 8 and the hanger 3 is released, the hanger 3 is fully opened and then raised and retracted. The anchor bolts are installed to fix the precast component 8 to the bridge. The moving trolley 2, the hanger 3, and the winch 205 are reset. The above operations are repeated along the bridge deck until the construction of the bridge deck structure is completed. Subsequent procedures include grouting, sealing, and waterproofing.

[0075] During construction, the equipment needs to be moved to a different workstation. The following precautions must be taken when moving the equipment: Before moving the equipment, the moving trolley 2 must be moved to the middle position on the movable gantry 101 and stopped. Simultaneously, the locking pin device must be in the locked state between the movable gantry 101 and the fixed gantry 1. Retract the outer telescopic outriggers 4 and the middle support 502, allowing the middle drive wheel 501 to touch the ground. Retract the inner support 602, allowing the inner drive wheel 601 to touch the ground, and raise the hanger 3 above the precast component 8. Simultaneously start all drive wheels to move the equipment to the next workstation. During movement, the guide wheels 504 on the middle outriggers 5 will assist in rolling along the side of the installed precast component 8. This not only avoids friction between the middle outriggers 5 and the side of the precast component 8 but also effectively guides the equipment's movement, preventing excessive tilting.

[0076] This installation equipment for prefabricated components of prefabricated bridge decks employs a rational structural design, enabling efficient transportation and route planning for the prefabricated components 8. Through the structural design of the gantry structure, the mobile trolley 2 and its components, and the hanger 3, it not only facilitates the hoisting and lifting of the prefabricated components 8 but also allows for position adjustment, meeting the movement requirements during installation and alignment. The inclusion of multiple laser sensors reduces the alignment difficulty and improves installation accuracy. Furthermore, the design of a foldable movable gantry 101 allows for space reduction based on site conditions, ensuring safe and efficient passage for beam transport vehicles and guaranteeing smooth beam transport operations. The support base and drive wheels allow the equipment to switch between fixed and mobile states, greatly simplifying its use. This installation method replaces the complex and tedious manual labor process, reducing operational difficulty and ensuring coordinated and orderly installation of the prefabricated components 8. It improves installation accuracy, reduces labor intensity, saves construction time, and guarantees safe and orderly construction operations.

[0077] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An installation device for prefabricated components of an assembled bridge deck system, characterized in that: The system includes a fixed gantry (1) and a movable gantry (101). The fixed gantry (1) includes an outer column top beam (105), and the movable gantry (101) includes a folding column top beam (104). The outer column top beam (105) is connected to the folding column top beam (104). The outer column top beam (105) has an outer telescopic support leg (4) and a middle support leg (5) at its bottom ends, respectively. The folding column top beam (104) has an inner support leg (6) at one bottom end. The inner support leg (6) is provided with an inner support seat (602) and an inner drive wheel (601) at its bottom. The middle support leg (5) is provided with a middle support seat (502) and a middle drive wheel (501) at its bottom. The outer column top beam (105) and the folding column top beam (104) are provided with guide rails (103). The guide rails (103) are provided with a moving trolley (2). The moving trolley (2) is provided with a winch (205). The winch (205) is connected to a hanger (3). The mobile trolley (2) includes a traveling beam (203), a moving motor (207) is provided on the side of the traveling beam (203), the traveling beam (203) cooperates with the guide rail (103), a longitudinal beam (204) is connected between the traveling beams (203), a slide rail (202) is provided on the longitudinal beam (204), the guide rail (103) and the slide rail (202) are orthogonally arranged; a mounting seat (206) is provided on the slide rail (202), the bottom of the mounting seat (206) cooperates with the slide rail (202), the winch (205) is provided on the mounting seat (206), and a first hydraulic cylinder (201) is provided on the side of the mounting seat (206); there are four slide rails (202) arranged at equal intervals, the mounting seat (206) is provided at both ends of the guide rail (103), there are four winches (205), and there are two hangers (3); The hanger (3) is provided with a first telescopic frame (302) and a second telescopic frame (303) at both ends, and a support leg (304) is provided at the middle of the bottom end of the hanger (3). The outer column top beam (105) is provided with a pivot (109) and an automatic pin (108) on both sides respectively. The outer column top beam (105) and the folding column top beam (104) are connected by the pivot (109). The fixed gantry (1) and the movable gantry (101) are hinged. The bridge deck is provided with prefabricated components, and the prefabricated components are provided with auxiliary laser sensors (7). The bottom of the support leg (304) is provided with a first laser sensor (312), and the bottom of the first telescopic frame (302) is provided with a second laser sensor (313). The bottom of the outrigger (304) is equipped with a first laser sensor (312), which can sense the distance between itself and the auxiliary laser sensor (7) on the wall of the prefabricated component B. Through the automatic adjustment of the first hydraulic cylinder (201), the longitudinal positioning of the prefabricated component (8) can be achieved. The second laser sensor (313) is used to detect whether the precast component (8) reaches the outer edge of the bridge. At the same time, when the second laser sensor (313) reaches a set distance from the outer edge of the bridge, it sends a signal. The auxiliary laser sensor (7) corresponds to the first laser sensor (312). When the precast component (8) reaches a set distance from the installed precast component, the first laser sensor sends a signal to stop the moving trolley (2).

2. The installation equipment for prefabricated components of assembled bridge deck systems according to claim 1, characterized in that: The hanger (3) is horizontally arranged, and the top of the hanger (3) is provided with a hoisting hole (301). The hoisting holes (301) are symmetrically arranged. The winch (205) is connected to the hoisting hole (301). The inner side of the hanger (3) is provided with a track (308). The middle part of the hanger (3) is provided with a second hydraulic cylinder (309). The second hydraulic cylinder (309) includes a tilt sensor. The two ends of the second hydraulic cylinder (309) are respectively connected to the first telescopic frame (302) and the second telescopic frame (303). The tops of the first telescopic frame (302) and the second telescopic frame (303) are both engaged with the track (308). The sides of the first telescopic frame (302) and the second telescopic frame (303) are provided with pin holes (305). The pin holes (305) are provided with pin shafts (306).

3. The installation equipment for prefabricated components of assembled bridge deck systems according to claim 2, characterized in that: The intermediate drive wheel (501) is located at the bottom of the intermediate support leg (5), and the intermediate drive wheel (501) is connected to the first drive motor (505). The intermediate support seat (502) is located on one side of the intermediate drive wheel (501), and the top of the intermediate drive wheel (501) is connected to the first hydraulic rod (506). The inner drive wheel (601) is located at the bottom of the inner support leg (6), and the inner drive wheel (601) is connected to the second drive motor (603). The inner support seat (602) is located on one side of the inner drive wheel (601), and the top of the inner drive wheel (601) is connected to the second hydraulic rod (507). A rotating seat (605) is provided between the inner drive wheel (601) and the inner support leg (6), and the rotating seat (605) is connected to the third drive motor (604).

4. The installation equipment for prefabricated components of assembled bridge deck systems according to claim 3, characterized in that: The length of the guide rail (103) is greater than the distance between the outer telescopic support leg (4) and the inner support leg (6). The top end of the outer column top beam (105) is provided with a limiting block (106), and the bottom end of the first telescopic frame (302) is provided with a guide plate (307).

5. The installation equipment for prefabricated components of prefabricated bridge deck systems according to claim 4, characterized in that: The mobile trolley (2) is provided with a prefabricated component (8) below it. The prefabricated component (8) has a lifting hole on its side. The pin (306) passes through the pin hole (305) and extends into the lifting hole. The first telescopic frame (302) abuts against one side of the prefabricated component (8), and the second telescopic frame (303) abuts against the other side of the prefabricated component (8). The bottom end of the support leg (304) abuts against the top end of the prefabricated component (8).

6. The installation equipment for prefabricated components of prefabricated bridge deck systems according to claim 5, characterized in that: The middle support leg (5) is provided with a guide wheel (504) on its side. The guide wheels (504) are arranged in pairs and abut against the side of the prefabricated component that has been installed.

7. A method for installing prefabricated components for prefabricated bridge deck systems, implemented using the installation equipment for prefabricated components for prefabricated bridge deck systems as described in claim 6, characterized in that... Includes the following steps: S1. Move the equipment to the precast component (8) to be installed, adjust the outer telescopic support leg (4) to press on the precast component that has been installed, and start the support seat to support the ground. S2. Install an auxiliary laser sensor (7) at one end of the B wall where the precast components have been installed. Transport the precast components (8) to the bottom of the hanger (3) using a component transfer vehicle. Adjust the moving trolley (2) to correspond with the precast components (8). S3. Start the first hydraulic cylinder (201) to widen the distance between the two hangers (3), and start the winch (205) to lower the hanger (3) until the pin hole (305) is aligned with the lifting hole; S4. Start the second hydraulic cylinder (309) to reduce the distance between the hangers (3) so that the first telescopic frame (302) and the second telescopic frame (303) are respectively close to both sides of the precast component (8), and insert the pin (306) into the pin hole (305) and the lifting hole. S5. Start the winch (205) to lift the precast component (8), and start the moving trolley (2) to move it to contact the limit block (106); S6. Start the winch (205) and lower the precast component (8) to the set distance, then stop the winch (205). S7. Start the mobile trolley (2) and move it towards the center of the bridge until the set distance is reached and then stop. S8. The tilt sensor micro-motion adjusts the precast component (8) to a horizontal state via the winch (205); S9. Start the first hydraulic cylinder (201) to drive the four mounting seats (206) to move synchronously to the set distance and then stop. S10. Release the pin (306), place the precast component (8) and shim it; S11. Reset the moving trolley (2), the hanger (3) and the winch (205), and install anchor bolts to fix the precast components (8); S12. Retract the support base to allow the drive wheels to contact the ground, and move the mobile device to the next workstation; S13. Repeat steps S1-S12 to complete the assembly process of the prefabricated component (8).

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