Construction method and installation equipment for high-precision heavy-load floor prestressed fabricated structure

Through prestressed prefabricated structural panels and modular installation equipment, the problem of concrete prone to cracking in high-precision heavy-duty floor construction is solved, efficient and low-cost construction is achieved, and the crack resistance and construction efficiency of the floor are significantly improved. .

CN119308492APending Publication Date: 2025-01-14CHINA MCC17 GRP CO LTD
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Patent Information

Application Number
CN202411739902.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

The prior art is difficult to effectively control the concrete shrinkage stress in high-precision heavy-duty floor construction, resulting in the floor being prone to cracking, with a long construction period and high cost, and the traditional method has no obvious crack resistance effect.

Method used

Prestressed prefabricated structural plates are used to complete tensioning in the factory by tensioning steel hinge ropes and stabilizers. Combined with modular design and installation equipment, the rapid assembly and installation of floor structural plates can be realized, reducing manual handling and improving crack resistance. Performance and construction efficiency.

Benefits of technology

Effectively control concrete shrinkage stress, significantly reduce floor cracks, improve compression and crack resistance, simplify construction processes, reduce costs, and achieve green construction and cost reduction and efficiency improvement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a high-precision heavy-load floor prestressed fabricated structure construction method and installation equipment, a tensioning steel hinge rope is arranged, tensioning grouting anchor sealing is completed before leaving a factory, the rigidity of a whole plate is large, when backfill soil locally sinks, the whole prestressed fabricated structure plate is stressed to resist cracking, the generated stress is transmitted to a separation seam to be collected in a centralized mode, and the construction efficiency is improved. A stabilizer is adopted at the separation seam to eliminate stress, the anti-cracking effect is achieved, and it is ensured that the second concrete leveling layer does not crack; the first winding wheel is rotated to drive the clamp to clamp the floor structural plate, the first winding wheel is rotated to drive the clamped floor structural plate to ascend and descend, the floor structural plate can be driven to move by pushing the cart, manual carrying is not needed, the labor intensity of workers can be reduced, and the assembling efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a high-precision heavy-load floor prestressed assembled structure construction method and installation equipment. Background Art

[0002] At present, in the heavy-duty floor construction of some domestic industrial plants with high or special requirements for flooring, since the manufacturers use high-precision production equipment imported from foreign countries, the technical requirements for the bearing capacity, wear resistance, flatness, crack control, and aesthetics of the floor structure after forming are very high. However, due to the factors of the raw materials themselves and the inadequate quality control during the construction process, conventional large-area concrete cast-in-place structure floors are often prone to large-area cracks, which not only affects the appearance but also affects the production and use of the manufacturer.

[0003] Nowadays, there is relatively mature construction experience in the prevention of cracking of cast-in-place concrete structure floors, such as optimizing concrete mix design, adopting the "skip-bin method" to pour in separate bins and choose a reasonable pouring time, using temperature-controlled concrete, etc. Although this traditional construction method can achieve a certain anti-cracking effect, it is necessary to plan the route in advance in the construction process, manually tie the steel mesh, support the formwork to pour concrete and dismantle the formwork. The construction period is long and requires a large number of people and materials. At the same time, due to the insufficient compaction of the foundation backfill, the quality of the concrete raw materials and the construction process, the anti-cracking effect of the floor is often not obvious. Summary of the invention

[0004] The present invention discloses a high-precision heavy-load floor prestressed assembled structure construction method and installation equipment. The prestressed assembled structure plate is used to effectively control the influence of large-area concrete shrinkage stress on floor cracking, enhance the anti-cracking performance of the structure, reduce the deformation and cracking effect of the ground layer, and greatly improve the floor quality and compression and crack resistance. At the same time, the assembly units are manufactured in the factory and installed on site, the process is simple, the construction speed is fast, and the cost is saved to a large extent, achieving the purpose of cost reduction, efficiency improvement and green construction.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The high-precision heavy-load floor prestressed assembled structure construction method includes the following steps:

[0007] S1. First, compact the foundation soil: the compaction degree meets the design and construction specifications and requirements;

[0008] S2, then, cast-in-place concrete is leveled to form a first concrete leveling layer: before the prestressed assembled structural slab is installed, a certain bearing capacity and sufficient flatness are provided for the installation;

[0009] S3. Secondly, install the floor structure board: the prestressed assembled structure board is manufactured in a modular manner in the factory, and a tensioning steel hinge rope is provided inside the board. By setting the tensioning steel hinge rope, the tensioning is completed before leaving the factory, and the rigidity of the whole board is relatively large. Stabilizers are provided at the corresponding corners, and an isolation plate is provided between two adjacent floor structure boards. The stabilizer is composed of two mounting plates, and a gas rod is provided between them, and a first spring is provided on the gas rod. When the backfill soil sinks locally, the floor structure board is subjected to stress cracking, and the generated stress is transferred to the isolation plate for centralized collection, and the stabilizer is used to eliminate the stress to achieve the anti-cracking effect, ensuring that the second concrete leveling layer does not crack;

[0010] S4. Finally, the concrete is leveled to form the second concrete leveling layer: after the floor structure slab is assembled, cast-in-place concrete and emery are used for leveling.

[0011] High-precision heavy-load prestressed assembled structure installation equipment for floor, used to install the above-mentioned floor structure board, including a cart set on the ground, and the cart can be moved freely on the ground, and a lifting frame is provided in the cart for lifting and sliding, and one end of the lifting frame is provided with a clamp for clamping the floor structure board;

[0012] The clamp includes a connecting seat fixedly arranged at the bottom of the lifting frame, a connecting plate fixedly arranged at the bottom of the connecting seat, two sliding rods fixedly arranged on both sides of the connecting plate, the outer wall sliding sleeves of the two sliding rods on the same side are provided with the same side strip, and the two side strips can control the spacing between two adjacent floor structure plates, two sliding blocks are provided on the side strip, a lifting plate is slidably arranged in the connecting seat, a connecting rod is rotatably arranged between the lifting plate and the sliding block, and a control member is provided at the other end of the lifting frame, which is connected to the lifting plate and is used to drive the lifting plate to rise and fall;

[0013] A cleaning mechanism is provided on one side of one of the side strips to clean the ground below during placement;

[0014] The lifting mechanism is arranged on the lifting frame and is used to control the lifting frame to rise and fall in the cart.

[0015] In a possible design, the cleaning mechanism includes a rotating plate rotatably arranged on one side of the lifting frame, one side of the rotating plate is rotatably provided with a cleaning roller for cleaning the ground, and the other side strip is provided with a limiting piece for limiting the rotating plate so that the rotating plate is in a storage state before clamping the floor structure plate.

[0016] In a possible design, a scraper for cleaning large impurities is fixedly provided on one side of the rotating plate, and the scraper is located on one side of the cleaning roller.

[0017] In a possible design, the control component includes a second winding wheel rotatably arranged on one side of the lifting frame, the outer wall of the second winding wheel is fixed and wrapped with a first pull rope, a first guide wheel is rotatably arranged inside the lifting frame, the other end of the first pull rope bypasses the first guide wheel and passes through the connecting seat and is fixedly connected to the lifting plate.

[0018] In a possible design, two mounting holes are provided on the top of the side strip, the sliding block is slidably arranged in the mounting holes, a rectangular opening communicating with the mounting holes is provided on the inner side of the side strip, a protrusion is provided in the rectangular opening, one side of the protrusion is fixedly connected to the sliding block, and the protrusion can be driven to get stuck on the side of the bottom plate during the movement of the sliding block.

[0019] In a possible design, the limiting member includes a pin column fixedly arranged on one side of one of the sliding blocks, and L-shaped holes are provided on the side of the side strip and the rotating plate close to each other, and the pin column is located in the two L-shaped holes.

[0020] In a possible design, the lifting mechanism includes a first winding wheel rotatably arranged in the lifting frame, a second guide wheel rotatably arranged in the cart, a second pull rope is fixed to and wrapped around the outer wall of the first winding wheel, and the other end of the second pull rope passes around the second guide wheel and is fixedly connected to the lifting frame.

[0021] In a possible design, two connecting frames are fixedly provided at the bottom of the lifting frame, and a sliding rod passes through one side of the connecting frame, and a fixing plate is fixedly sleeved on the outer wall of the rod, and a second spring is sleeved on the outer wall of the rod, and two ends of the second spring are respectively fixedly connected to the fixing plate and the side of the connecting frame close to each other, and a pedal for stepping on is fixedly provided at the bottom end of the rod, and a plurality of sockets for cooperating with the rod are provided on the rotating shafts of the first and second winding wheels, which are used to fix the first and second winding wheels, and hand wheels are provided on the outer sides of the rotating shafts of the first and second winding wheels.

[0022] In the present application, first, the device is moved onto the first concrete leveling layer, and the floor structure plate is placed on the first concrete leveling layer in sequence, and then the cart is pushed to drive the clamp to move above the floor structure plate, and the pedal under the second winding wheel is stepped on with the foot to drive the insertion rod away from the second winding wheel. At this time, the lifting frame and the clamp can fall on the floor structure plate under the action of gravity, so that the floor structure plate is located in the clamp, and then the pedal under the first winding wheel is stepped on to drive the insertion rod away from the first winding wheel, and the first winding wheel is rotated. The rotation of the first winding wheel can store the first pull rope, and the first pull rope can drive the lifting plate to move upward during the storage process. The upward movement of the lifting plate can drive the corresponding sliding block to move inward through the connecting rod, and the movement of the sliding block can drive the protrusion to clamp the floor structure plate, and the movement of the sliding block can drive the pin to move in the L-shaped hole;

[0023] Secondly, rotate the second winding wheel. The rotation of the second winding wheel can store one end of the second pull rope. During the storage process, the lifting frame can be driven to move upward. The upward movement of the lifting frame can drive the clamp to move upward, thereby driving the floor structure plate to move upward. At the same time, the rotating plate can rotate on the edge strip under the gravity of the cleaning roller. Then release the pedal. At this time, the insertion rod can be inserted into the rotating shafts of the first winding wheel and the second winding wheel under the action of the second spring to fix them, and push the cart to drive the floor structure plate to move to the installation location;

[0024] Then, step on the pedal on the second winding wheel to drive the insertion rod away from the second winding wheel, and rotate the second winding wheel in the opposite direction. The reverse rotation of the second winding wheel can release one end of the first pull rope. At this time, the lifting frame can drive the clamp to move downward under the action of gravity, and place the floor structure board at the installation location. During the placement process, the cleaning roller can roll on the first concrete leveling layer to clean the impurities on the first concrete leveling layer, and use a shovel to remove larger impurities;

[0025] Finally, step on the pedal under the first winding wheel and rotate the first winding wheel in the opposite direction. The reverse rotation of the first winding wheel can loosen one end of the first pull rope. At this time, the lifting plate can move downward under its own gravity. The downward movement of the lifting plate can drive the sliding block to move in the installation hole through the connecting rod, and drive the protrusion away from the floor structure plate, loosening the clamping of the floor structure plate, and at the same time can drive the pin to move in the L-shaped hole to fix the rotating plate, and then place them in sequence;

[0026] At the same time, during the placement process, the clamped floor structure board can be positioned through the second pull rope, the side strips and the placed floor structure board.

[0027] Beneficial effects:

[0028] In the present invention, the high-precision heavy-load floor prestressed assembled structure construction method is to set a tensioning steel hinge rope, complete the tensioning grouting and anchoring before leaving the factory, and the whole plate has a large rigidity. When the backfill soil sinks locally, the whole prestressed assembled structure plate is stressed to resist cracking, and the generated stress is transferred to the separation joint for centralized collection. A stabilizer is used at the separation joint to eliminate the stress, thereby achieving an anti-cracking effect and ensuring that the second concrete leveling layer does not crack.

[0029] In the present invention, the high-precision heavy-load prestressed assembled structure installation equipment can drive the clamp to clamp the floor structure plate by rotating the first winding wheel, and drive the clamped floor structure plate to move up and down by rotating the first winding wheel, and can drive the floor structure plate to move by pushing the cart, without manual handling, which can reduce the labor intensity of the staff and improve the assembly efficiency;

[0030] In the present invention, the high-precision heavy-load floor prestressed assembled structure installation equipment can clamp the floor structure plate through the coordinated use of the edge strips and the protrusions, and can clean the installation site through the cleaning roller and the scraper during the placement process to prevent impurities from affecting the installation effect of the floor structure plate, and can position the clamped floor structure plate through the edge strips, the rotating plate and the installed floor structure plate to prevent the spacing between them from being consistent, which is convenient for the subsequent installation of the isolation plate;

[0031] In the present invention, by rotating the first winding wheel and the second winding wheel, the floor structure plate can be clamped and lifted and lowered respectively, and the floor structure plate can be driven to move in conjunction with the trolley, making it convenient to carry the floor structure plate, and the floor structure plate can be positioned by the edge strips and the protrusions during the placement process, and the first concrete leveling layer can be cleaned during the placement process to improve the assembly effect, and the use of prestressed tendons can reduce reinforcement, the separation seams do not require formwork support, and the use of formwork is reduced, thereby reducing costs and increasing efficiency in green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a top view of a floor structure plate of an assembled prestressed floor structure proposed by the present invention;

[0033] Figure 2 A schematic diagram of the cross-sectional structure of a floor structure plate of an assembled prestressed floor structure proposed by the present invention;

[0034] Figure 3 A schematic cross-sectional structure diagram of a floor structure plate of an assembled prestressed floor structure proposed by the present invention from another perspective;

[0035] Figure 4 A schematic diagram of the installation structure of an isolation plate of an assembled prestressed floor structure proposed by the present invention;

[0036] Figure 5 This is a three-dimensional structural schematic diagram of the high-precision heavy-load floor prestressed assembled structure installation equipment proposed by the present invention;

[0037] Figure 6 This is a schematic diagram of the fixture structure of the high-precision heavy-load prestressed assembled structure installation equipment proposed by the present invention;

[0038] Figure 7 It is a schematic diagram of a partial cross-sectional structure of a fixture of a high-precision heavy-load prestressed assembled structure installation device proposed by the present invention;

[0039] Figure 8 This is a schematic diagram of the connection structure between the lifting frame and the trolley of the high-precision heavy-load prestressed assembled structure installation equipment proposed by the present invention.

[0040] In the figure: 1, floor structure board; 2, isolation board; 3, stabilizer; 4, first concrete leveling layer; 5, tensioning steel hinge rope; 6, second concrete leveling layer; 8, mounting plate; 9, gas rod; 10, first spring; 11, trolley; 12, lifting frame; 13, clamp; 14, hand wheel; 15, side strip; 16, mounting hole; 17, sliding block; 18, sliding rod; 19, connecting plate; 20, connecting seat; 21, Lifting plate; 22, connecting rod; 23, protrusion; 24, rotating plate; 25, cleaning roller; 26, scraper; 27, rectangular opening; 28, L-shaped hole; 29, pin; 30, first guide wheel; 31, first winding wheel; 32, first pull rope; 33, second guide wheel; 34, second pull rope; 35, second winding wheel; 36, connecting frame; 37, plug rod; 38, fixing plate; 39, second spring; 40, pedal. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Example 1

[0043] Reference Figure 1-Figure 4 , the high-precision heavy-load floor prestressed assembled structure construction method includes the following steps:

[0044] S1. First, compact the foundation soil: the compaction degree meets the design and construction specifications and requirements;

[0045] S2, then, cast-in-place concrete is leveled to form a first concrete leveling layer 4: before the prestressed assembled structural slab is installed, a certain bearing capacity and sufficient flatness are provided for the installation;

[0046] S3. Secondly, install the floor structure board 1: the prestressed assembled structure board is manufactured in a modular manner in the factory, and a tensioning steel hinge rope 5 is arranged inside the prestressing steel hinge rope 5. By setting the tensioning steel hinge rope 5, the tensioning is completed before leaving the factory, and the rigidity of the whole board is relatively large. A stabilizer 3 is arranged at the corresponding corner, and an isolation plate 2 is arranged between two adjacent floor structure boards 1. The stabilizer 3 is composed of two mounting plates 8, between which a gas rod 9 is arranged, and a first spring 10 is sleeved on the gas rod 9. When the backfill soil sinks locally, the floor structure board 1 is subjected to stress to resist cracking, and the generated stress is transferred to the isolation plate 2 for centralized collection, and the stabilizer 3 is used to eliminate the stress to achieve an anti-cracking effect, ensuring that the second concrete leveling layer 6 does not crack;

[0047] S4. Finally, the concrete is leveled to form a second concrete leveling layer 6: After the floor structure slab 1 is assembled, cast-in-place concrete and corundum are used for leveling.

[0048] Example 2

[0049] Reference Figure 5-Figure 8 , a high-precision heavy-load prestressed assembled structure installation device for installing the above-mentioned floor structure board 1, comprising a cart 11 arranged on the ground, and the cart 11 can be moved freely on the ground, and a lifting frame 12 is provided in the cart 11 for lifting and sliding, and a clamp 13 for clamping the floor structure board 1 is provided at one end of the lifting frame 12;

[0050] The clamp 13 includes a connecting seat 20 fixedly arranged at the bottom of the lifting frame 12, a connecting plate 19 fixedly arranged at the bottom of the connecting seat 20, two sliding rods 18 fixedly arranged on both sides of the connecting plate 19, the outer wall sliding sleeves of the two sliding rods 18 on the same side are provided with the same side strip 15, and the two side strips 15 can control the spacing between two adjacent floor structure panels 1, two sliding blocks 17 are arranged on the side strip 15, a lifting plate 21 is slidably arranged in the connecting seat 20, and a connecting rod 22 is rotatably arranged between the lifting plate 21 and the sliding block 17, and a control member is arranged at the other end of the lifting frame 12, and the control member is connected to the lifting plate 21, and is used to drive the lifting plate 21 to rise and fall;

[0051] A cleaning mechanism is provided on one side of one of the side strips 15 to clean the ground below during placement;

[0052] The lifting mechanism is arranged on the lifting frame 12 and is used to control the lifting and lowering of the lifting frame 12 in the trolley 11. The trolley 11 is pushed to move on the ground, and the lifting mechanism can drive the clamp 13 to move up and down, so that the clamp 13 can be put on the floor structure board 1, and the two side strips 15 can be driven by the control member to approach each other to clamp the floor structure board 1, so that the floor structure board 1 can be driven to move without manual handling, and the two adjacent floor structure boards 1 can be limited by the side strips 15 to facilitate the control of the distance between them, and the ground below can be cleaned during the placement process to improve the stability of the installation.

[0053] The cleaning mechanism includes a rotating plate 24 rotatably arranged on one side of the lifting frame 12, and a cleaning roller 25 for cleaning the ground is rotatably arranged on one side of the rotating plate 24. A limiting piece is provided on the other side strip 15 for limiting the rotating plate 24. It is in a storage state before clamping the floor structure plate 1. During the process of placing the floor structure plate 1, it can drive the side strip 15 to move downward. The downward movement of the side strip 15 can drive the cleaning roller 25 to move downward. When the cleaning roller 25 contacts the ground, it can drive the cleaning roller 25 to roll on the ground to clean the ground. No manual cleaning is required, thereby reducing the labor of workers.

[0054] The control component includes a second winding wheel 35 rotatably arranged on one side of the lifting frame 12, and the outer wall of the second winding wheel 35 is fixed and wrapped with a first pull rope 32. A first guide wheel 30 is rotatably arranged inside the lifting frame 12. The other end of the first pull rope 32 passes around the first guide wheel 30 and passes through the connecting seat 20 and is fixedly connected with the lifting plate 21. By rotating the second winding wheel 35, the first pull rope 32 can be stored. During the storage process, the other end of the first pull rope 32 can be driven to move upward, and the lifting plate 21 can be driven to move upward. The lifting plate 21 can drive the two side strips 15 upward through the two connecting rods 22 to clamp the two side strips 15 close to the guard plate.

[0055] Two mounting holes 16 are provided at the top of the edge strip 15, and the sliding block 17 is slidably arranged in the mounting holes 16. A rectangular opening 27 communicating with the mounting holes 16 is provided on the inner side of the edge strip 15, and a protrusion 23 is provided in the rectangular opening 27. One side of the protrusion 23 is fixedly connected to the sliding block 17, and the protrusion 23 can be driven to get stuck on the side of the bottom plate during the movement of the sliding block 17. By arranging the protrusion 23 on the sliding block 17, the protrusion 23 can be driven to insert into the side of the floor structure board 1 during the movement of the sliding block 17, and continued movement can drive the edge strip 15 to move and clamp the floor structure board 1, thereby improving the stability of the clamping.

[0056] The lifting mechanism includes a first winding wheel 31 rotatably arranged in the lifting frame 12, a second guide wheel 33 rotatably arranged in the trolley 11, a second pull rope 34 is fixed to and wrapped around the outer wall of the first winding wheel 31, and the other end of the second pull rope 34 passes around the second guide wheel 33 and is fixedly connected to the lifting frame 12. By rotating the first winding wheel 31, the second pull rope 34 can be stored, and the other end of the second pull rope 34 can be driven to move upward, thereby driving the lifting frame 12 to move upward, and vice versa, driving the lifting frame 12 to move downward.

[0057] Example 3

[0058] refer to Figure 5-Figure 8 , an improvement based on Example 2: a scraper 26 for cleaning large impurities is fixedly provided on one side of the rotating plate 24, and the scraper 26 is located on one side of the cleaning roller 25. By arranging the scraper 26 on the rotating plate 24, it can clean larger impurities during the movement, which can effectively prevent the floor structure plate 1 from being placed tilted.

[0059] The limiting member includes a pin 29 fixed on one side of one of the sliding blocks 17. L-shaped holes 28 are provided on the side of the side strip 15 and the rotating plate 24 that are close to each other. The pin 29 is located in the two L-shaped holes 28. When the protrusion 23 is inserted into the side of the bottom plate, it can drive the pin 29 to move in the L-shaped hole 28. At this time, the rotating plate 24 can rotate downward under gravity. When the protrusion 23 is separated from the floor structure plate 1, it can drive the pin 29 to move in the opposite direction in the L-shaped hole 28, so as to limit the rotating plate 24.

[0060] The bottom of the lifting frame 12 is fixedly provided with two connecting frames 36, one side of the connecting frame 36 passes through the sliding plug rod 37, the outer wall of the plug rod 37 is fixedly sleeved with a fixing plate 38, and the outer wall of the plug rod 37 is sleeved with a second spring 39, and the two ends of the second spring 39 are respectively fixedly connected to the fixing plate 38 and the side close to each other of the connecting frame 36, and the bottom end of the plug rod 37 is fixedly provided with a pedal 40 for stepping on. The rotating shafts of the first winding wheel 31 and the second winding wheel 35 are provided with a plurality of insertion holes for use with the plug rod 37, which are used to fix the first winding wheel 31 and the second winding wheel 35, and the outer sides of the rotating shafts of the first winding wheel 31 and the second winding wheel 35 are provided with a hand wheel 14. By stepping on the pedal 40 to move downward, the plug rod 37 can be driven to move downward, so that the top end of the plug rod 37 is separated from the insertion hole, and when the pedal 40 is released, the plug rod 37 can be inserted into the insertion hole under the action of the second spring 39, which can fix the first winding wheel 31 and the second winding wheel 35 respectively, and will not rotate after the adjustment is completed.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The high-precision heavy-load floor prestressed assembled structure construction method includes the following steps: First, compact the foundation soil: the compaction degree meets the design and construction specifications and requirements; Then, cast-in-place concrete is leveled to form the first concrete leveling layer: before the prestressed assembled structural slab is installed, it provides a certain bearing capacity and sufficient flatness for the installation; Secondly, install the floor structure board: the prestressed assembled structure board is manufactured in a modularized manner in the factory, and is equipped with tensioning steel hinge ropes inside. By setting the tensioning steel hinge ropes, the tensioning is completed before leaving the factory, and the whole board has a large rigidity. Stabilizers are set at the corresponding corners, and isolation plates are set between two adjacent floor structure boards. The stabilizer consists of two mounting plates, and a gas rod is set between them. The first spring is set on the gas rod. When the backfill soil sinks locally, the floor structure board is stressed to resist cracking, and the generated stress is transferred to the isolation plate for centralized collection, and the stabilizer is used to eliminate the stress to achieve an anti-cracking effect, ensuring that the second concrete leveling layer does not crack; Finally, the concrete is leveled to form the second concrete leveling layer: after the floor structure slab is assembled, cast-in-place concrete and emery are used for leveling.

2. High-precision heavy-load floor prestressed assembled structure installation equipment, characterized in that: Used to install the floor structure board according to claim 1, comprising a cart arranged on the ground, and the cart can be moved freely on the ground, a lifting frame is provided in the cart for lifting and sliding, and a clamp for clamping the floor structure board is provided at one end of the lifting frame; The clamp includes a connecting seat fixedly arranged at the bottom of the lifting frame, a connecting plate fixedly arranged at the bottom of the connecting seat, two sliding rods fixedly arranged on both sides of the connecting plate, the outer wall sliding sleeves of the two sliding rods on the same side are provided with the same side strip, and the two side strips can control the spacing between two adjacent floor structure plates, two sliding blocks are provided on the side strip, a lifting plate is slidably arranged in the connecting seat, a connecting rod is rotatably arranged between the lifting plate and the sliding block, and a control member is provided at the other end of the lifting frame, which is connected to the lifting plate and is used to drive the lifting plate to rise and fall; A cleaning mechanism is provided on one side of one of the side strips to clean the ground below during placement; The lifting mechanism is arranged on the lifting frame and is used to control the lifting frame to rise and fall in the cart.

3. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 2 is characterized by: The cleaning mechanism includes a rotating plate rotatably arranged on one side of the lifting frame, one side of the rotating plate is rotatably provided with a cleaning roller for cleaning the ground, and the other side strip is provided with a limiting piece for limiting the rotating plate, which is in a storage state before clamping the floor structure plate.

4. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 3 is characterized by: A scraper for cleaning large impurities is fixedly provided on one side of the rotating plate, and the scraper is located on one side of the cleaning roller.

5. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 4 is characterized in that: The control component includes a second winding wheel rotatably arranged on one side of the lifting frame, the outer wall of the second winding wheel is fixed and a first pull rope is wound around it, a first guide wheel is rotatably arranged inside the lifting frame, the other end of the first pull rope bypasses the first guide wheel and passes through the connecting seat and is fixedly connected to the lifting plate.

6. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 5 is characterized by: Two mounting holes are provided on the top of the side strip, and the sliding block is slidably arranged in the mounting holes. A rectangular opening communicating with the mounting holes is provided on the inner side of the side strip, and a protrusion is provided in the rectangular opening. One side of the protrusion is fixedly connected to the sliding block, and the protrusion can be driven to be stuck on the side of the bottom plate during the movement of the sliding block.

7. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 6 is characterized by: The limiting member includes a pin column fixedly arranged on one side of one of the sliding blocks, and L-shaped holes are provided on the side of the side strip and the rotating plate close to each other, and the pin column is located in the two L-shaped holes.

8. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 7 is characterized in that: The lifting mechanism includes a first winding wheel rotatably arranged in the lifting frame, a second guide wheel rotatably arranged in the trolley, a second pull rope is fixed and wound around the outer wall of the first winding wheel, and the other end of the second pull rope is wound around the second guide wheel and fixedly connected to the lifting frame.

9. The high-precision heavy-load prestressed assembled structure installation equipment according to claim 8 is characterized by: Two connecting frames are fixedly provided at the bottom of the lifting frame, and a sliding rod passes through one side of the connecting frame, and a fixing plate is fixedly sleeved on the outer wall of the rod, and a second spring is sleeved on the outer wall of the rod, and two ends of the second spring are respectively fixedly connected to the fixing plate and the side close to each other of the connecting frame, and a pedal for stepping on is fixedly provided at the bottom end of the rod, and a plurality of sockets for use with the rod are provided on the rotating shafts of the first and second winding wheels, which are used to fix the first and second winding wheels, and hand wheels are provided on the outer sides of the rotating shafts of the first and second winding wheels.

10. The implementation method of high-precision heavy-load floor prestressed assembled structure installation equipment according to claim 9 is characterized in that: include: Step 1, move the device to the first concrete leveling layer, and place the floor structure plate on the first concrete leveling layer in sequence, then push the cart to drive the clamp to move above the floor structure plate, step on the pedal under the second winding wheel with your foot to drive the insertion rod away from the second winding wheel, at this time, the lifting frame and the clamp can fall on the floor structure plate under the action of gravity, so that the floor structure plate is located in the clamp, then step on the pedal under the first winding wheel to drive the insertion rod away from the first winding wheel, rotate the first winding wheel, the rotation of the first winding wheel can store the first pull rope, the first pull rope can drive the lifting plate to move upward during the storage process, the lifting plate can move upward to drive the corresponding sliding block to move inward through the connecting rod, the movement of the sliding block can drive the protrusion to clamp the floor structure plate, the movement of the sliding block can drive the pin to move in the L-shaped hole; Step 2, rotate the second winding wheel. The rotation of the second winding wheel can store one end of the second pull rope. During the storage process, the lifting frame can be driven to move upward. The upward movement of the lifting frame can drive the clamp to move upward, thereby driving the floor structure plate to move upward. At the same time, the rotating plate can rotate on the edge strip under the gravity of the cleaning roller, and then release the pedal. At this time, the insertion rod can be inserted into the rotating shafts of the first winding wheel and the second winding wheel under the action of the second spring to fix them, and push the cart to drive the floor structure plate to move to the installation location; Step 3, step on the pedal on the second winding wheel to drive the insertion rod away from the second winding wheel, and rotate the second winding wheel in the opposite direction. The reverse rotation of the second winding wheel can release one end of the first pull rope. At this time, the lifting frame can drive the clamp to move downward under the action of gravity, and place the floor structure board at the installation location. During the placement process, the cleaning roller can roll on the first concrete leveling layer to clean the impurities on the first concrete leveling layer, and use a shovel to remove larger impurities; Step 4, step on the pedal under the first winding wheel and rotate the first winding wheel in the opposite direction. The reverse rotation of the first winding wheel can loosen one end of the first pull rope, and the lifting plate can move downward under its own gravity. The downward movement of the lifting plate can drive the sliding block to move in the installation hole through the connecting rod, and drive the protrusion away from the floor structure plate, loosening the clamping of the floor structure plate, and at the same time can drive the pin to move in the L-shaped hole to fix the rotating plate, and then place them in sequence; At the same time, during the placement process, the clamped floor structure board can be positioned through the second pull rope, the side strips and the placed floor structure board.