Erection method of assembled high-rise structure

Abstract

The application belongs to the technical field of building engineering construction, and discloses a kind of assembled high-rise structure lifting construction method, segmented lifting is carried out to assembled high-rise structure using lifting device, without relying on large high-altitude lifting equipment, not affected by airport clearance and city limit height limiting factors, the splicing operation of each standard segment is completed near the ground, reduces the high-altitude operation amount, reduces the construction safety risk, improves the docking accuracy of standard segment and the controllability of welding quality. The connection between each construction step is compact, which greatly shortens the construction period. The flatness and land area requirement of construction site is significantly reduced, not limited by the narrow enclosing space of existing buildings and other adverse factors, effectively avoiding the local stress concentration and deformation problem of assembled high-rise structure in the construction process. The stable control module avoids the instability and overturning risk of assembled high-rise structure in the state of high center of gravity suspended lifting, ensuring the structural stability of the whole construction process.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for constructing a prefabricated tall structure. Background Technology

[0002] With the large-scale application of prefabricated construction technology, various tall structures such as observation towers, airport control towers, petrochemical towers, radio and television towers, lighthouses, watchtowers, and chimneys are widely used in engineering construction. The on-site installation efficiency, construction safety control, and forming accuracy of these prefabricated tall structures have become key factors affecting the overall quality and construction cost of the project.

[0003] Currently, the mainstream on-site installation processes for prefabricated tall structures fall into two categories: high-altitude component hoisting and segment-by-segment assembly, and ground-based horizontal assembly and overall lifting. The high-altitude component hoisting and segment-by-segment assembly process relies on large lifting equipment for vertical transport and high-altitude docking of components. As the structure height increases, hoisting efficiency significantly decreases, and the process involves a large proportion of high-altitude work, posing high safety risks. Controlling component docking accuracy and welding quality is also challenging, resulting in long construction cycles and high equipment investment costs. While the ground-based horizontal assembly and overall lifting process shifts the core assembly process to the ground, significantly reducing high-altitude work, it has stringent requirements for site flatness and floor space. It is poorly suited for complex and narrow sites, and the structural stress state transitions during the overall lifting process are complex, easily leading to localized stress concentration and component deformation. Controlling the structural posture and synchronization is difficult, posing a safety hazard of instability and overturning.

[0004] In summary, both of the existing mainstream technologies have certain technical shortcomings and cannot meet the requirements of safe, efficient and high-precision construction of prefabricated tall structures under complex working conditions. There is an urgent need in this field to develop a new lifting construction technology that is more adaptable. Summary of the Invention

[0005] The purpose of this invention is to provide a construction method for lifting prefabricated tall structures, so as to solve the technical shortcomings of the two mainstream construction processes in the field of on-site installation of prefabricated tall structures.

[0006] To achieve this objective, the present invention adopts the following technical solution: A construction method for lifting prefabricated tall structures, wherein a lifting device is used to lift the prefabricated tall structure in sections. The lifting device includes a support module, a lifting module, and a stabilization module. The support module includes three support frames evenly spaced along the same circumference. The support frames are set on the ground, and each support frame is equipped with the lifting module. The stabilization module is configured to tension the prefabricated tall structure. The construction method for lifting prefabricated tall structures includes the following steps: S1. Segmented prefabrication: The prefabricated high-rise structure is divided vertically into several standard segments and prefabricated. S2. Preparation for lifting: Complete the construction of the bottom foundation section of the prefabricated high-rise structure at the designed location on the ground, install the lifting device in place, and position and connect the initial standard segments of the prefabricated high-rise structure to the lifting module. S3. Segmented lifting: Control the lifting module to lift the initial standard segment to a preset height, and simultaneously control the stabilization module to tension the initial standard segment while lifting the initial standard segment; S4. Bottom patching: Patch the second standard segment below the initial standard segment and connect the two. S5. Lift again, control the lifting module to lift the second standard segment and the initial standard segment together to the preset height, and at the same time control the stabilization module to adjust the tensioning posture of the initial standard segment; S6. Cyclic operation: sequentially insert the remaining standard segments of the prefabricated high-rise structure below the previous standard segment and perform connection and lifting operations until all standard segments are raised to the preset height.

[0007] Optionally, the lifting module includes a lifting beam, a hydraulic through-hole jack, lifting steel strands, pull-out steel strands, and a load-bearing component. The lifting beam is fixedly connected to the upper end face of the support frame. The hydraulic through-hole jack is disposed at one end of the lifting beam near the area enclosed by the three support frames. The lifting steel strand is connected to the output end of the hydraulic through-hole jack. One end of the pull-out steel strand is connected to the end of the lifting beam away from the area enclosed by the three support frames, and the other end is anchored to the ground. The load-bearing component is connected to the lower end of the lifting steel strand and is configured to bear the load from the standard segment of the prefabricated high-rise structure. In step S2, the initial standard segment is positioned and connected to the bearing component; In step S3, the hydraulic through-hole jack is controlled to drive the lifting steel strand and the bearing assembly to lift to a certain height, so as to lift the initial standard segment to a preset height.

[0008] Optionally, two hydraulic through-hole jacks are spaced apart at one end of the lifting beam near the area enclosed by the three support frames. The output end of each hydraulic through-hole jack is individually connected to the lifting steel strand, and the lower end of each lifting steel strand is individually connected to the bearing component. Of the two hydraulic through-hole jacks on each lifting beam, one belongs to the first lifting system and the other belongs to the second lifting system. In steps S3, S5, and S6, the hydraulic through-hole jacks belonging to the first lifting system and the hydraulic through-hole jacks belonging to the second lifting system are controlled to perform alternating cyclic lifting operations to lift the prefabricated tall structure with different numbers of standard segments to a preset height.

[0009] Optionally, the load-bearing component is a support bracket, which can be bolted to standard sections of the prefabricated tall structure; In steps S5 and S6, if the hydraulic through-hole jack belonging to the first lifting system performed the previous lifting operation, then after the bottom patching is completed, the supporting bracket and the corresponding standard segment belonging to the first lifting system are disconnected, and the hydraulic through-hole jack belonging to the first lifting system drives the lifting steel strand and the supporting bracket to fall back to the near-ground lifting position; if the hydraulic through-hole jack belonging to the second lifting system performed the previous lifting operation, then after the bottom patching is completed, the supporting bracket and the corresponding standard segment belonging to the second lifting system are disconnected, and the hydraulic through-hole jack belonging to the second lifting system drives the lifting steel strand and the supporting bracket to fall back to the near-ground lifting position.

[0010] Optionally, the supporting bracket also integrates a hydraulic telescopic system, which is configured to drive the supporting bracket to extend and retract in the horizontal direction; In steps S5 and S6, when the supporting bracket falls back, the hydraulic telescopic system is controlled to drive the supporting bracket to retract in the horizontal direction to avoid mechanical interference between the supporting bracket and the standard segment.

[0011] Optionally, the supporting component is a triangular tray, with a through hole extending vertically through the center of the triangular tray, through which the bottom of the standard segment can extend downwards, and the triangular tray and the standard segment can be fastened together by an L-shaped connecting plate and bolts; In steps S4 and S6, the bottom of the previous standard segment can extend out through the through hole so that after the standard segment is raised to a preset height, the next standard segment can be inserted into the bottom of the standard segment.

[0012] Optionally, the stabilization module includes at least three tensioning components, each tensioning component including a stabilizing hydraulic through-hole jack and a cable strand. The stabilizing hydraulic through-hole jack is fixedly installed on the ground, and the cable strand is threaded through the stabilizing hydraulic through-hole jack and can be anchored to the initial standard segment. The at least three tensioning components are evenly spaced on the outer circumference of the circumference where the support frame is located. In step S2, the cable strand of the tensioning assembly is anchored to the initial standard segment, and the tension force of the cable strand is adjusted by controlling the hydraulic through-hole jack.

[0013] Optionally, the stabilization module further includes a control system, which is communicatively connected to the stabilization hydraulic through-hole jack; In steps S5 and S6, the control system can control each of the stabilizing hydraulic through-hole jacks to adjust the length of the corresponding cable strand in real time according to the structural posture, displacement and force monitoring data of the initial standard segment, so as to control the tension of the stabilizing module within the set range.

[0014] Optionally, the support module further includes guide rails, each of the support frames is connected to the guide rails on the inner side facing the area enclosed by the three support frames, and each of the guide rails extends in a vertical direction, and the lifting module is slidably connected to the guide rails.

[0015] Optionally, the prefabricated tall structure lifting construction method further includes the following steps: S7. Foundation fixing: Fix the final standard segment of the prefabricated high-rise structure to the bottom foundation segment. S8. After step S7 is completed, permanent stay cables or permanent braces are installed on the prefabricated tall structure and the lifting device is removed.

[0016] The beneficial effects of this invention are: This invention provides a method for lifting and constructing prefabricated tall structures. It utilizes a lifting device to lift the prefabricated tall structure in sections, achieving safe, efficient, and high-precision installation. Compared to traditional high-altitude component-by-component assembly, this method eliminates the need for large-scale high-altitude lifting equipment and is unaffected by airport airspace restrictions or urban height limitations, offering greater versatility. The splicing of each standard segment is completed near the ground, significantly reducing high-altitude work and construction safety risks, while improving the controllability of docking accuracy and welding quality between standard segments. The cyclic interlocking lifting method ensures tight connections between construction steps, eliminates the long-term occupation of large equipment, and significantly shortens the construction period, thereby reducing equipment and labor costs. Compared to ground-based horizontal assembly and overall lifting methods, it significantly reduces the requirements for site flatness and floor space, is not limited by the confines of existing buildings, and greatly expands the applicable scenarios for prefabricated tall structures. This improved construction method also effectively avoids the localized stress concentration and deformation problems that are prone to occur in prefabricated tall structures during the ground-mounted integral panel lifting process, thus improving the accuracy of attitude control for prefabricated tall structures. The stabilization module can tension the initial standard segments during construction, avoiding the risk of instability and overturning of prefabricated tall structures in a high-center-of-gravity suspended lifting state, and ensuring the structural stability throughout the entire construction process. Attached Figure Description

[0017] Figure 1 This is a process flow diagram of the prefabricated tall structure lifting construction method described in the embodiments of the present invention; Figure 2 This is a schematic diagram of the lifting device and the initial standard segment described in Embodiment 1 of the present invention; Figure 3 This is a top view of the lifting device, the initial standard segment, and the second standard segment described in Embodiment 1 of the present invention; Figure 4 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 1 ; Figure 5 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 2 ; Figure 6 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 3 ; Figure 7 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 4 ; Figure 8This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 5 ; Figure 9 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 6 ; Figure 10 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 1 of the present invention. Figure 7 ; Figure 11 This is a schematic diagram of the lifting device, the initial standard segment, and the second standard segment described in Embodiment 2 of the present invention; Figure 12 This is a top view of the lifting device, the initial standard segment, and the second standard segment described in Embodiment 2 of the present invention; Figure 13 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 1 ; Figure 14 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 2 ; Figure 15 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 3 ; Figure 16 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 4 ; Figure 17 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 5 ; Figure 18 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 6 ; Figure 19 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 7 ; Figure 20 This is the construction process of the prefabricated tall structure lifting construction method described in Embodiment 2 of the present invention. Figure 8 .

[0018] In the picture: 1. Support module; 11. Support frame; 12. Guide rail; 2. Lifting module; 21. Lifting beam; 22. Hydraulic through-hole jack; 23. Lifting steel strand; 24. Anti-pull-out steel strand; 25. Bearing component; 3. Stabilization module; 31. Tensioning component; 311. Stabilization hydraulic through-hole jack; 312. Cable strand; a1. Initial standard section; a2. Second standard section; a n a) Standard segmentation of the final layer; b) Bottom foundation segment; c) Permanent stay cables; d) Permanent bracing. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: like Figures 1 to 10As shown, this invention provides a method for lifting a prefabricated tall structure. The method utilizes a lifting device to lift the prefabricated tall structure in segments. The lifting device includes a support module 1, a lifting module 2, and a stabilization module 3. The support module 1 includes three support frames 11 evenly spaced along the same circumference. The support frames 11 are set on the ground, and each support frame 11 is equipped with a lifting module 2. The stabilization module 3 is configured to tension the prefabricated tall structure. The method for lifting a prefabricated tall structure includes the following steps: S1, segmented prefabrication: The prefabricated tall structure is vertically divided into several standard segments and prefabricated; S2, lifting preparation: The foundation section b of the prefabricated tall structure is constructed at the designed location on the ground, the lifting device is installed, and the initial standard segment a1 of the prefabricated tall structure is positioned and connected to the lifting module 2; S3, segmented lifting: The lifting module 2 is controlled to lift the initial standard segment a1 to a preset height. Simultaneously, the stabilization module 3 is controlled to tension the initial standard segment a1. S4. Underground insertion: Insert the second standard segment a2 below the initial standard segment a1 and connect the two; S5. Lift again: Control the lifting module 2 to lift the second standard segment a2 and the initial standard segment a1 together to the preset height, while controlling the stabilization module 3 to adjust the tensioning posture of the initial standard segment a1; S6. Cyclic operation: Insert the remaining standard segments of the prefabricated high-rise structure below the previous standard segment in sequence and perform connection and lifting operations until all standard segments are lifted to the preset height.

[0024] This prefabricated high-rise structure lifting construction method utilizes lifting devices to lift the prefabricated high-rise structure in sections, thereby achieving safe, efficient, and high-precision installation. Compared to the traditional high-altitude component hoisting and segment-by-segment assembly process, it eliminates the need for large-scale high-altitude lifting equipment and is unaffected by airport airspace restrictions or urban height limitations, offering greater versatility. The splicing of each standard segment is completed near the ground, significantly reducing the amount of high-altitude work, substantially lowering construction safety risks, and improving the controllability of the docking accuracy and welding quality between standard segments. The cyclic interlocking lifting construction method ensures tight connections between construction steps, eliminates the long-term occupation of large equipment, and significantly shortens the construction period, thereby reducing equipment and labor costs. Compared to the ground-based horizontal assembly and integral lifting process, it significantly reduces the requirements for site flatness and floor space, is not limited by unfavorable factors such as limited enclosed spaces in existing buildings, and greatly expands the applicable scenarios for prefabricated high-rise structures. This improved construction method also effectively avoids the local stress concentration and deformation problems that are prone to occur in prefabricated tall structures during the ground-mounted integral lifting process, thus improving the accuracy of attitude control for prefabricated tall structures. The stabilization module 3 can tension the initial standard segment a1 during construction, avoiding the risk of instability and overturning of the prefabricated tall structure in a high-center-of-gravity suspended lifting state, and ensuring the structural stability of the entire construction process.

[0025] Specifically, such as Figure 2 and Figure 3 As shown, the lifting module 2 includes a lifting beam 21, a hydraulic through-hole jack 22, lifting steel strands 23, pull-out steel strands 24, and a load-bearing component 25. The lifting beam 21 is fixedly connected to the upper end face of the support frame 11. The hydraulic through-hole jack 22 is located at one end of the lifting beam 21 near the area enclosed by the three support frames 11. The lifting steel strands 23 are connected to the output end of the hydraulic through-hole jack 22. One end of the pull-out steel strands 24 is connected to the end of the lifting beam 21 away from the area enclosed by the three support frames 11, and the other end is anchored to the ground. The load-bearing component 25 is connected to the lower end of the lifting steel strands 23 and is configured to bear the load from the standard segments of the prefabricated high-rise structure. Figures 4 to 10As shown, in step S2, the initial standard segment a1 is positioned and connected to the bearing component 25; in step S3, the hydraulic through-hole jack 22 is controlled to drive the lifting steel strand 23 and the bearing component 25 to lift a certain height, so as to lift the initial standard segment a1 to the preset height. In this embodiment, the three support frames 11 of the support module 1 are evenly distributed at 120° intervals in the same circumference, and sufficient opening and closing angles and working space are reserved between adjacent support frames 11, so as to facilitate the insertion of the standard segment from the horizontal direction. In other embodiments, while ensuring the bearing capacity of the support module 1, the number of support frames 11 in each support module 1 should not be too large. The support frame 11 adopts a lattice support frame, which has the advantages of light weight, high rigidity, high bearing capacity and strong lateral force resistance, and can effectively ensure the bearing capacity of the support module 1. The lifting beam 21 is welded or screwed to the upper end face of the support frame 11. The hydraulic through-hole jack 22 drives the lifting steel strand 23 and the load-bearing component 25 to lift a certain height, thereby raising the initial standard segment a1 to the preset height. The hydraulic through-hole jack 22 has advantages such as high lifting capacity, strong lifting stability, high reliability, and small space occupation, ensuring the stable and safe lifting of the prefabricated high-rise structure. The pull-out steel strand 24 can effectively balance the reverse force of the prefabricated high-rise structure on the support frame 11 during the lifting process, preventing the support frame 11 from overturning, thereby improving the stability of the support module 1.

[0026] Furthermore, such as Figures 2 to 10 As shown, the supporting component 25 is a triangular tray with a through hole running vertically through its center. The bottom of the standard segment can extend downward through the through hole. The triangular tray and the standard segment can be fastened together by an L-shaped connecting plate and bolts. In steps S4 and S6, the bottom of the previous standard segment can extend through the through hole, allowing the next standard segment to be inserted into its bottom after it has been lifted to a preset height. The triangular tray structure has good stability and uniform stress distribution, stably supporting the standard segments and preventing offset and overturning during lifting and docking, ensuring the coaxiality and installation accuracy of the upper and lower standard segments. The through hole provides clearance space for the bottom of the standard segment, allowing the bottom of the previous standard segment to extend downward smoothly, facilitating the insertion and docking of the next standard segment after it has been lifted to a preset height. The use of L-shaped connecting plates and bolts to achieve a secure connection between the triangular tray and the standard segment is reliable and easy to assemble and disassemble. The L-shaped connecting plates and bolts are reusable, effectively reducing construction costs.

[0027] For example, such as Figure 2As shown, the support module 1 also includes guide rails 12. Each support frame 11 is connected to a guide rail 12 on the inner side facing the area enclosed by the three support frames 11, and each guide rail 12 extends vertically. The lifting module 2 is slidably connected to the guide rail 12. The guide rail 12 can guide the movement direction of the lifting module 2, ensuring that the lifting module 2 moves vertically during lifting and lowering, thereby improving the installation and docking accuracy of the prefabricated high-rise structure.

[0028] Optionally, such as Figure 2 As shown, the stabilization module 3 includes at least three tensioning components 31. Each tensioning component 31 includes a stabilizing hydraulic through-hole jack 311 and a cable strand 312. The stabilizing hydraulic through-hole jack 311 is fixedly installed on the ground, and the cable strand 312 passes through the stabilizing hydraulic through-hole jack 311 and can be anchored to the initial standard segment a1. The at least three tensioning components 31 are evenly spaced on the outer circumference of the circumference of the support frame 11. In step S2, the cable strand 312 of the tensioning component 31 is anchored to the initial standard segment a1, and the stabilizing hydraulic through-hole jack 311 is controlled to adjust the tension of the cable strand 312. By setting multiple tensioning components 31 around the periphery of the prefabricated tall structure and adjusting the length of the cable strands 312 using a controlled hydraulic through-hole jack 311, the tension of the prefabricated tall structure can be adjusted, ensuring its verticality during the lifting process and improving its stability and anti-overturning ability. The control module 3, by using a controlled hydraulic through-hole jack 311 to adjust the tension of the cable strands 312, overcomes the nonlinearity and low precision defects of existing tensioning devices driven by winches, achieving an improvement from extensive tensioning to high-precision attitude control.

[0029] Specifically, the winch drives a drum to rotate and wind up and unwind the wire rope via a motor. When the wire rope is wound in multiple layers, the effective working radius of the drum dynamically changes with the number of winding layers. When the motor speed is constant, the length of rope wound per turn increases non-linearly with the increase of the drum diameter. This non-linear increasing relationship leads to serious unpredictability and error in the winch's displacement output, making millimeter-level precise control impossible. In this embodiment, a stable hydraulic through-hole jack 311 is used to adjust the length of the cable strand 312. The piston rod of the stable hydraulic through-hole jack 311 has a simple linear motion, and its displacement is strictly proportional to the oil supply, avoiding interference from changes in the drum diameter. It has extremely high displacement stiffness and linearity, effectively solving the displacement distortion problem of the winch drive.

[0030] When the lifting module 2 generates a slight vertical lifting displacement, the stabilization module 3, based on the same hydraulic linear displacement control logic, can accurately calculate and execute the tension displacement required by the inclined side according to the spatial geometric relationship, ensuring the linkage and coordination between the tension force and the lifting displacement, and avoiding dynamic conflicts caused by heterogeneous drive methods. In this embodiment, the lifting module 2 and the stabilization module 3 can also share the hydraulic power source and control logic network, realizing real-time coupling compensation of lifting force and tension force based on a unified displacement reference. When the sensor detects a slight tilt in the prefabricated high-rise structure, it can synchronously instruct the hydraulic through-hole jack 22 to execute the lifting displacement based on a unified spatial geometric algorithm, and simultaneously instruct the stabilization hydraulic through-hole jack 311 to accurately execute the compensation tension displacement required by the inclined side, realizing the linkage and coordination between lifting and stabilization.

[0031] Furthermore, the stabilization module 3 also includes a control system, which is communicatively connected to the stabilization hydraulic mandrel 311. In steps S5 and S6, the control system can control each stabilization hydraulic mandrel 311 in real time to adjust the length of the corresponding guy wire strand 312 based on the structural posture, displacement, and stress monitoring data of the initial standard segment a1, so as to control the tension of the stabilization module 3 within the set range. Through real-time communication between the control system and the stabilization hydraulic mandrel 311, the length of each guy wire strand 312 can be dynamically adjusted in steps S5 and S6 based on the structural posture, displacement, and stress monitoring data of the initial standard segment a1, thereby accurately controlling the tension within the set range. This significantly improves the adaptive adjustment capability of the stabilization module 3, effectively avoids the instability of the initial standard segment a1 caused by excessive or insufficient tension, ensures the posture stability and stress balance of the initial standard segment a1 throughout the construction process, and further improves operational safety and control accuracy.

[0032] For example, such as Figure 10 As shown, the construction method for lifting prefabricated tall structures also includes the following steps: S7, foundation fixing, and dividing the final standard segment a of the prefabricated tall structure. n Fixed connection to the bottom foundation section b; after steps S8 and S7 are completed, permanent stay cables c are installed on the prefabricated high-rise structure and the lifting device is removed. Step S7 involves fixing the final standard section a of the prefabricated high-rise structure. n The fixed connection with the bottom foundation section b ensures the stability and anti-overturning capacity of the prefabricated tall structure after the lifting construction is completed. Step S8 involves installing permanent stay cables c before removing the lifting device, which can share the load of the prefabricated tall structure, prevent its deformation or instability, and improve its safety redundancy during its service life.

[0033] Example 2: like Figures 11 to 20As shown, this embodiment provides a prefabricated tall structure lifting construction method, and the same or corresponding components as in Embodiment 1 are marked with the same or corresponding reference numerals as in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.

[0034] like Figure 11 and Figure 12 As shown, in this embodiment, two hydraulic through-hole jacks 22 are spaced apart at one end of the lifting beam 21 near the area enclosed by the three support frames 11. Each hydraulic through-hole jack 22 has its output end individually connected to a lifting steel strand 23, and the lower end of each lifting steel strand 23 is individually connected to a load-bearing component 25. Of the two hydraulic through-hole jacks 22 on each lifting beam 21, one belongs to the first lifting system and the other to the second lifting system. Figures 13 to 20 As shown, in steps S3, S5, and S6, the hydraulic through-hole jacks 22 belonging to the first lifting system and the hydraulic through-hole jacks 22 belonging to the second lifting system are controlled to perform alternating cyclic lifting operations to lift the prefabricated high-rise structure with different numbers of standard segments to a preset height. In this embodiment, the lifting module 2, by setting up a first lifting system and a second lifting system capable of independent lifting operations and controlling the two lifting systems to operate alternately cyclically, achieves the reconstruction of the standard segment lifting process. This effectively avoids the ineffective waiting time of a single lifting system when the hydraulic through-hole jacks 22 drive the load-bearing components 25 to fall back, further improving construction efficiency.

[0035] Specifically, the segmented lifting and bottom patching construction process of prefabricated high-rise structures has a rigid physical time barrier. After each lifting and patching to transfer the upper load, although the hydraulic through-hole jack 22 is unloaded and no longer under force, it takes a very long time to extend the lifting steel strand 23 to near the ground before the next standard segment lifting can begin. Under a single lifting system, the construction rhythm is divided into a cycle of lifting, patching, load transfer, waiting for the steel strand to be lowered, and lifting again. The waiting period for the steel strand to be lowered causes equipment and processes to be partially halted, becoming a bottleneck restricting construction efficiency. In this embodiment, the first and second lifting systems are each set on two independent lifting beams 21 on the same support frame 11 to form a non-interfering structural layout, achieving a precise arrangement in the time dimension. After the first lifting system completes the lifting, patching, and load transfer, it enters the time-consuming steel strand lowering and resetting stage. At this time, the second lifting system, which has already been lowered into place, immediately starts to undertake the next standard segment lifting. The above design transforms the waiting period for lowering the steel strand into parallel time for the effective operation of another lifting system. The second lifting system lifts while the first lifting system lowers, and vice versa, effectively eliminating ineffective waiting time. The effective operating time in a single lifting system mode is extremely low, while the dual lifting systems alternately form a seamless assembly line around the same installation node. Without increasing the amount of additional installation, they completely fill the unavoidable ineffective waiting time with effective work, resulting in a much greater reduction in the construction cycle of the prefabricated high-rise structure than simply adding more equipment, achieving a non-linear leap in construction efficiency.

[0036] Specifically, such as Figures 11 to 20As shown, the supporting component 25 is a supporting bracket, which can be bolted to the standard sections of the prefabricated tall structure. In steps S5 and S6, if the hydraulic through-hole jack 22 belonging to the first lifting system was used for the previous lifting operation, then after the bottom patching is completed, the supporting bracket belonging to the first lifting system and the corresponding standard section are disconnected, and the hydraulic through-hole jack 22 belonging to the first lifting system is controlled to drive the lifting steel strand 23 and the supporting bracket back to the near-ground lifting position. During the back-falling process, the second lifting system simultaneously lifts the prefabricated tall structure. If the hydraulic through-hole jack 22 belonging to the second lifting system was used for the previous lifting operation, then after the bottom patching is completed, the supporting bracket belonging to the second lifting system and the corresponding standard section are disconnected, and the hydraulic through-hole jack 22 belonging to the second lifting system is controlled to drive the lifting steel strand 23 and the supporting bracket back to the near-ground lifting position. During the back-falling process, the first lifting system simultaneously lifts the prefabricated tall structure. The supporting component 25 adopts a bracket-like form, with the brackets spaced horizontally below the lifting beam 21. This effectively prevents mechanical interference between the first and second lifting systems during their alternating up-and-down movements. The alternating lifting and lowering operations of the first and second lifting systems significantly improve construction continuity and efficiency. Furthermore, a hydraulic telescopic system is integrated within the bracket, configured to drive the bracket to extend and retract horizontally. In steps S5 and S6, when the bracket retracts, the hydraulic telescopic system is controlled to retract horizontally, preventing mechanical interference between the bracket and the standard section and significantly improving the safety and reliability of the alternating lifting operations of the first and second lifting systems. It is understood that the hydraulic telescopic system and the operating principle of driving the bracket to extend and retract horizontally are existing technologies and will not be elaborated upon here.

[0037] For example, such as Figure 20 As shown, the construction method for lifting prefabricated tall structures also includes the following steps: S7, foundation fixing, and dividing the final standard segment a of the prefabricated tall structure. n Fixed connection to the bottom foundation section b; after steps S8 and S7 are completed, permanent diagonal bracing d is installed on the prefabricated high-rise structure and the lifting device is removed. Step S7 involves fixing the final standard section a of the prefabricated high-rise structure. n The fixed connection with the bottom foundation section b ensures the stability and anti-overturning capacity of the prefabricated tall structure after the lifting construction is completed. Step S8 involves installing permanent diagonal bracing d before removing the lifting device, which can share the load of the prefabricated tall structure, prevent its deformation or instability, and improve its safety redundancy during its service life.

[0038] It is understood that the above embodiments can be selectively combined as needed, based on what is feasible.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for constructing prefabricated tall structures, characterized in that: The prefabricated tall structure is lifted in sections using a lifting device. The lifting device includes a support module (1), a lifting module (2), and a stabilization module (3). The support module (1) includes three support frames (11) evenly spaced along the same circumference. The support frames (11) are set on the ground. Each support frame (11) is equipped with the lifting module (2). The stabilization module (3) is configured to tension the prefabricated tall structure. The construction method for lifting prefabricated tall structures includes the following steps: S1. Segmented prefabrication: The prefabricated high-rise structure is divided vertically into several standard segments and prefabricated. S2. Preparation for lifting: Complete the construction of the bottom foundation section (b) of the prefabricated high structure at the designed location on the ground, install the lifting device in place, and position and connect the initial standard section (a1) of the prefabricated high structure to the lifting module (2). S3. Segmented lifting: control the lifting module (2) to lift the initial standard segment (a1) to a preset height. While lifting the initial standard segment (a1), control the stabilization module (3) to tension the initial standard segment (a1). S4. Bottom patching: Patch the second standard segment (a2) below the initial standard segment (a1) and connect the two. S5. Lift again, control the lifting module (2) to lift the second standard segment (a2) and the initial standard segment (a1) to the preset height, and at the same time control the stabilization module (3) to adjust the tensioning posture of the initial standard segment (a1); S6. Cyclic operation: sequentially insert the remaining standard segments of the prefabricated high-rise structure below the previous standard segment and perform connection and lifting operations until all standard segments are raised to the preset height.

2. The prefabricated high-rise structure lifting construction method according to claim 1, characterized in that, The lifting module (2) includes a lifting beam (21), a hydraulic through-hole jack (22), a lifting steel strand (23), a pull-out steel strand (24), and a load-bearing component (25). The lifting beam (21) is fixedly connected to the upper end face of the support frame (11). The hydraulic through-hole jack (22) is located at one end of the lifting beam (21) near the area enclosed by the three support frames (11). The lifting steel strand (23) is connected to the output end of the hydraulic through-hole jack (22). One end of the pull-out steel strand (24) is connected to one end of the lifting beam (21) away from the area enclosed by the three support frames (11), and the other end is anchored to the ground. The load-bearing component (25) is connected to the lower end of the lifting steel strand (23) and is configured to bear the load from the standard segment of the prefabricated high-rise structure. In step S2, the initial standard segment (a1) is positioned and connected to the bearing component (25). In step S3, the hydraulic through-hole jack (22) is controlled to drive the lifting steel strand (23) and the bearing component (25) to lift to a certain height, so as to lift the initial standard segment (a1) to a preset height.

3. The prefabricated tall structure lifting construction method according to claim 2, characterized in that, Two hydraulic through-hole jacks (22) are spaced apart at one end of the lifting beam (21) near the area enclosed by the three support frames (11). The output end of each hydraulic through-hole jack (22) is individually connected to the lifting steel strand (23). The lower end of each lifting steel strand (23) is individually connected to the bearing component (25). Of the two hydraulic through-hole jacks (22) on each lifting beam (21), one belongs to the first lifting system and the other belongs to the second lifting system. In steps S3, S5 and S6, the hydraulic through-hole jacks (22) belonging to the first lifting system and the hydraulic through-hole jacks (22) belonging to the second lifting system are controlled to perform alternating cyclic lifting operations to lift the prefabricated tall structure with different number of standard segments to a preset height.

4. The prefabricated tall structure lifting construction method according to claim 3, characterized in that, The load-bearing component (25) is a support bracket, which can be bolted to the standard sections of the prefabricated high-rise structure; In steps S5 and S6, if the hydraulic through-hole jack (22) belonging to the first lifting system was used for the previous lifting operation, then after the bottom patching is completed, the supporting bracket and the corresponding standard segment belonging to the first lifting system will be disconnected, and the hydraulic through-hole jack (22) belonging to the first lifting system will be controlled to drive the lifting steel strand (23) and the supporting bracket to fall back to the near-ground lifting position; if the hydraulic through-hole jack (22) belonging to the second lifting system was used for the previous lifting operation, then after the bottom patching is completed, the supporting bracket and the corresponding standard segment belonging to the second lifting system will be disconnected, and the hydraulic through-hole jack (22) belonging to the second lifting system will be controlled to drive the lifting steel strand (23) and the supporting bracket to fall back to the near-ground lifting position.

5. The prefabricated tall structure lifting construction method according to claim 4, characterized in that, The supporting bracket also integrates a hydraulic telescopic system, which is configured to drive the supporting bracket to extend and retract in the horizontal direction. In steps S5 and S6, when the supporting bracket falls back, the hydraulic telescopic system is controlled to drive the supporting bracket to retract in the horizontal direction to avoid mechanical interference between the supporting bracket and the standard segment.

6. The prefabricated tall structure lifting construction method according to claim 2, characterized in that, The bearing component (25) is a triangular tray, and a through hole is provided in the center of the triangular tray in a vertical direction. The bottom of the standard segment can extend downward through the through hole. The triangular tray and the standard segment can be fastened together by an L-shaped connecting plate and bolts. In steps S4 and S6, the bottom of the previous standard segment can extend out through the through hole so that after the standard segment is raised to a preset height, the next standard segment can be inserted into the bottom of the standard segment.

7. The prefabricated high-rise structure lifting construction method according to any one of claims 1-6, characterized in that, The stabilization module (3) includes at least three tensioning components (31). Each tensioning component (31) includes a stabilization hydraulic through-hole jack (311) and a cable wind strand (312). The stabilization hydraulic through-hole jack (311) is fixedly installed on the ground. The cable wind strand (312) is inserted into the stabilization hydraulic through-hole jack (311) and can be anchored to the initial standard segment (a1). At least three tensioning components (31) are evenly spaced on the outer circumference of the circumference of the support frame (11). In step S2, the cable strand (312) of the tensioning assembly (31) is anchored to the initial standard segment (a1), and the stabilizing hydraulic through-hole jack (311) is controlled to adjust the tension of the cable strand (312).

8. The prefabricated tall structure lifting construction method according to claim 7, characterized in that, The stabilization module (3) also includes a control system, which is communicatively connected to the stabilization hydraulic through-hole jack (311); In steps S5 and S6, the control system can control each of the stabilizing hydraulic through-hole jacks (311) to adjust the length of the corresponding cable strand (312) in real time according to the structural posture, displacement and force monitoring data of the initial standard segment (a1) so as to control the tension of the stabilizing module (3) within the set range.

9. The prefabricated tall structure lifting construction method according to any one of claims 1-6, characterized in that, The support module (1) also includes a guide rail (12). Each support frame (11) is connected to the guide rail (12) on the inner side of the area enclosed by the three support frames (11), and each guide rail (12) extends in the vertical direction. The lifting module (2) is slidably connected to the guide rail (12).

10. The prefabricated tall structure lifting construction method according to any one of claims 1-6, characterized in that, The prefabricated tall structure lifting construction method also includes the following steps: S7. Foundation fixed, standard segmentation of the last floor of the prefabricated high-rise structure (a) n (b) and the bottom base section are fixedly connected; S8. After step S7 is completed, a permanent stay cable (c) or a permanent brace (d) is installed on the prefabricated tall structure and the lifting device is removed.

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