Self-adaptive tower crane attachment device for super high-rise building core tube and construction method

Abstract

In order to improve the adaptability, safety and construction efficiency of a tower crane attachment device for super high-rise building core tube construction, the invention discloses a tower crane self-adaptive attachment device for a super high-rise building core tube and a construction method, and the tower crane self-adaptive attachment device for the super high-rise building core tube comprises a pre-embedded assembly connected with the super high-rise building core tube, the embedded assembly is connected with a length-adjustable wall-attached rod piece through a spherical hinge assembly, the wall-attached rod piece is connected with a tower body of the tower crane through a flange assembly, and the wall-attached rod piece is a hydraulic push rod connected with a control unit. The control unit is connected with an angle sensor used for monitoring the angle change of the spherical hinge assembly and a distance sensor used for monitoring the distance change between the super high-rise building core tube and the tower body. The control system automatically controls the hydraulic push rod to stretch out and draw back according to feedback data of the angle sensor and the distance sensor. According to the method, the adaptability is remarkably improved, the safety is greatly enhanced, the construction efficiency is multiplied, the economical advantage is prominent, and the compatibility and expansibility are high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tower crane attachment devices, in particular to a tower crane self-adaptive attachment device for super high-rise building core tube and a construction method. BACKGROUND

[0002] In the construction process of high-rise building core tube, the tower crane, as a key vertical transportation equipment, needs to be connected with the core tube wall through an attachment support to ensure the stability and safety of the tower crane in high-altitude operation. With the development of high-rise buildings towards super high-rise and complex structures, the core tube design often adopts a variable cross-section form (the cross-section size becomes thick or thin or there is an eccentric offset during construction), and the traditional tower crane attachment support has been difficult to meet the construction requirements.

[0003] Most of the existing tower crane attachment supports are rigid structures with fixed length and fixed angle, and their size and installation angle are determined at the factory, which cannot be flexibly adjusted according to the changes in the cross-section of the core tube. When the core tube construction reaches the construction section with thick or thin cross-section or eccentricity, the original attachment support needs to be removed, a new support that fits the current cross-section size needs to be custom-made and installed at high altitude. This process not only consumes a lot of manpower and material resources, but also has safety risks such as falling and object impact during frequent high-altitude disassembly and assembly operations, and the disassembly and assembly operations will cause the tower crane to stop working, which seriously affects the construction progress.

[0004] In addition, in the actual construction of the core tube, due to factors such as concrete pouring error, formwork installation deviation or temporary adjustment of the design scheme, the actual distance between the tower crane and the core tube wall often deviates from the designed value, which easily leads to the tower crane hanging too high beyond the safety range specified in the "Tower Crane Safety Regulations". If the tower crane hangs too high, the stress state of the tower crane boom will deteriorate, and under the action of the lifting load, the boom is prone to bending deformation, and in severe cases, it may even break, causing a major safety accident; if the suspension height is adjusted forcibly to reduce the suspension height, manual measurement and calculation are needed, and fine adjustment is achieved by repeatedly disassembling and assembling the support components, and the adjustment process usually takes 2-3 days, which is extremely low in efficiency, further exacerbating the problem of lagging construction progress.

[0005] In summary, the current traditional fixed tower crane attachment support has problems such as difficulty in adapting to changes in the cross-section of the core tube, large suspension height control risks, and low efficiency of manual adjustment, which seriously restricts the safety, efficiency and economy of the construction of the core tube of high-rise buildings, and there is an urgent need for a tower crane attachment support technical solution that can solve the above problems.

[0006] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background of the present application, and should not be regarded as acknowledging or implying in any form that the above technical information constitutes prior art known to those skilled in the art. SUMMARY

[0007] In view of the deficiencies in the background art, the present application proposes a tower crane self-adaptive attachment device for a super-high-rise building core tube and a construction method, which aims to improve the adaptability, safety and construction efficiency of the tower crane attachment device for the super-high-rise building core tube.

[0008] The technical solution of the present application is: A tower crane self-adaptive attachment device for a super-high-rise building core tube, comprising a pre-buried component connected to the super-high-rise building core tube, the pre-buried component being connected to a length-adjustable wall-attached rod through a spherical hinge component, the wall-attached rod being connected to the tower body of the tower crane through a flange component, the wall-attached rod being a hydraulic push rod connected to a control unit, the control unit being connected to an angle sensor for monitoring the angle change of the spherical hinge component and a distance sensor for monitoring the distance change between the super-high-rise building core tube and the tower body, and the control system automatically controlling the extension and retraction of the hydraulic push rod according to the feedback data of the angle sensor and the distance sensor.

[0009] On the basis of the above technical solution, as a preferred technical solution of the tower crane self-adaptive attachment device for a super-high-rise building core tube, a plurality of wall-attached rods are connected between the super-high-rise building core tube and the tower body.

[0010] On the basis of the above technical solution, as a preferred technical solution of the tower crane self-adaptive attachment device for a super-high-rise building core tube, the wall-attached rods are arranged obliquely and / or horizontally between the super-high-rise building core tube and the tower body.

[0011] On the basis of the above technical solution, as a preferred technical solution of the tower crane self-adaptive attachment device for a super-high-rise building core tube, the spherical hinge component comprises a spherical hinge seat connected to the pre-buried component and a hinge ball connected to the wall-attached rod, and the angle sensor and the distance sensor are both arranged on the spherical hinge seat.

[0012] On the basis of the above technical solution, as a preferred technical solution of the tower crane self-adaptive attachment device for a super-high-rise building core tube, the pre-buried component comprises a double-end bolt inserted into the outer wall of the super-high-rise building core tube, the two ends of the double-end bolt are respectively inserted with an inner steel plate and an outer steel plate for clamping the outer wall, and the inner steel plate and the outer steel plate are fixed by lock nuts matched with the double-end bolt.

[0013] On the basis of the above technical solution, as a preferred technical solution of the tower crane self-adaptive attachment device for a super-high-rise building core tube, rubber shock pads are arranged between the inner steel plate and the inner wall of the outer wall and between the outer steel plate and the outer wall of the outer wall.

[0014] On the basis of the above technical scheme, as a preferred technical scheme of the tower crane adaptive attachment device for the super high-rise building core tube, the stud is inserted into the ball head hinge seat, the ball head hinge seat is attached to the outer steel plate, and the lock nut is pressed on the outer side of the ball head hinge seat.

[0015] On the basis of the above technical scheme, as a preferred technical scheme of the tower crane adaptive attachment device for the super high-rise building core tube, the stud is inserted into the ball head hinge seat, the ball head hinge seat is attached to the outer steel plate, and the lock nut is pressed on the outer side of the ball head hinge seat.

[0016] On the basis of the above technical scheme, as a preferred technical scheme of the tower crane adaptive attachment device for the super high-rise building core tube, the flange assembly includes a flange plate one connected to the end of the wall-attached rod and a flange plate two connected to the tower body, and the flange plate one and the flange plate two are connected by a bolt set.

[0017] A construction method of a tower crane adaptive attachment device for a super high-rise building core tube adopts the tower crane adaptive attachment device for the super high-rise building core tube described in the above technical scheme, and the control unit is provided with a threshold value, and when the distance change is greater than or equal to 10 cm or the inclination change is greater than or equal to 5°, the hydraulic push rod is automatically adjusted.

[0018] The present application solves the pain points of traditional tower crane attachment devices from the aspects of adaptability, safety, construction efficiency, economy and compatibility through the integrated design of "sensor monitoring-control unit linkage-hydraulic push rod adaptive adjustment" combined with the optimized embedded ball hinge and flange structure. 1. The adaptability is significantly improved The wall-attached rod is provided with a hydraulic push rod connected to the control unit, and the ball hinge assembly has an angle adjustment range of 0-60°, so that the inclination deviation caused by the cross-section change of the core tube can be captured in real time by an angle sensor (automatic adjustment is triggered when the inclination deviation is greater than or equal to 5°), and the distance sensor can accurately monitor the distance change between the tower body and the core tube (automatic extension when the distance change is greater than or equal to 10 cm), so that the complex working conditions such as variable cross-section (change in thickness and eccentricity), polygonal cross-section can be adapted without the need to remove the original structure, and the adaptation range covers 100-400m super high-rise building core tube, solving the limitation of "one cross-section one support" of the traditional device.

[0019] 2. The safety is greatly enhanced The control unit corrects the length of the hydraulic push rod in real time based on the double-sensor feedback data, avoids the tower crane from being suspended beyond the range (suspension height ≤ 2m) specified in the Safety Regulations for Tower Cranes, and eliminates the risks of bending and breaking of the jib from the root; the double-layer rubber shock pad of the pre-buried component can reduce the vibration amplitude of the tower crane from the traditional 5mm to below 2mm, protecting the core wall and internal pipelines; the reinforced cast steel structure (ZG270-500) of the spherical hinge component and the multi-nut locking design (three locking nuts on the outside) improve the uplift and torsional bearing capacity (single node uplift force ≥ 200kN) and reduce the risk of high-altitude falling.

[0020] 3. Construction efficiency is multiplied The traditional device needs 2-3 days for single adjustment (manual measurement and disassembly), the present application can realize single adjustment within 1 hour through automatic adjustment, and the efficiency is improved by more than 48 times; when the core wall construction reaches the key nodes such as the transfer floor and the eccentric section, the device can realize synchronous construction and adjustment without stopping work and disassembling the support, which shortens the total construction period by 15%-20%; the displacement sensor (accuracy ±0.5mm) and the angle sensor (accuracy ±0.1°) replace manual measurement, avoid human error and reduce the rework rate.

[0021] 4. Economic advantage is prominent The cost of repeatedly processing and customizing new supports due to cross-section changes (single support cost reduction of 60%) is saved, and the labor and equipment investment for high-altitude disassembly is reduced (labor cost reduction of 70%); the durable design (chrome plating anti-rust, polytetrafluoroethylene coating) of the hydraulic push rod and the sensor prolongs the service life of the device to 5 project cycles, reduces the equipment turnover cost, and reduces the time of stopping work to avoid the delay penalty, which indirectly improves the economic benefits of the project.

[0022] 5. Strong compatibility and expansibility The wall-attached rod supports horizontal, inclined and combined arrangements, which can adapt to various core wall cross-sections such as circular, polygonal and rectangular; the control unit reserves a data interface, which can be connected to the tower crane verticality monitoring system and the project BIM platform, realizing integrated management of “adjustment data-construction progress-safety warning”; for vibration-sensitive areas (such as adjacent to ancient buildings and hospitals), the device can be upgraded with multi-layer composite shock pads and vibration sensors to expand the application scenarios of the device. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a structural schematic diagram of the present application; Figure 2 is Figure 1 is an enlarged view of A in the middle; Figure 3 is Figure 1 is an enlarged view of B in the middle; Figure 4 is a working principle diagram of the present application.

[0025] Explanation of reference numerals: super high-rise building core tube 1, outer wall 11; embedded component 2, stud bolt 21, inner steel plate 22, outer steel plate 23, locking nut 24, rubber shock pad 25; spherical hinge component 3, spherical hinge seat 31, hinge ball head 32; wall attachment rod 4; flange component 5, flange plate one 51, flange plate two 52, bolt set 53; tower body 6; control unit 7, angle sensor 71, distance sensor 72. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the core idea of the present application and the following embodiments, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The present application provides these embodiments in order to make the present application thorough and complete, and fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values described in these embodiments should be interpreted as merely exemplary, not as a limitation.

[0028] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0030] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0031] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] An adaptive attachment device for a tower crane used in the core tube of a super high-rise building, such as Figures 1 to 4 As shown, it includes a pre-embedded component 2 connected to the core tube 1 of the super high-rise building, the pre-embedded component 2 is connected to the length-adjustable wall-attached rod 4 through a ball joint component 3, the wall-attached rod 4 is connected to the tower body 6 of the tower crane through a flange component 5, and the wall-attached rod 4 is a hydraulic push rod connected to the control unit 7. The control unit 7 is connected to an angle sensor 71 for monitoring the angle change of the ball joint component 3 and a distance sensor 72 for monitoring the change in the distance between the core tube 1 of the super high-rise building and the tower body 6. The control system automatically controls the extension and retraction of the hydraulic push rod according to the feedback data of the angle sensor 71 and the distance sensor 72.

[0034] Preferably, a plurality of the wall-attaching rods 4 are connected between the core tube 1 and the tower body 6 of the super high-rise building.

[0035] Preferably, the super high-rise building core tube 1 and the tower body 6 are connected with the obliquely arranged spandrel bar 4 and / or the horizontally arranged spandrel bar 4.

[0036] Preferably, the spherical hinge assembly 3 includes a spherical hinge seat 31 connected with the embedded component 2, a hinge ball 32 connected with the spandrel bar 4, and an angle sensor 71 and a distance sensor 72 arranged on the spherical hinge seat 31.

[0037] Preferably, on the basis of the above technical solution, as a preferred technical solution of the tower crane adaptive attachment device for the super high-rise building core tube, the embedded component 2 includes a double-headed bolt 21 penetratingly matched with the outer wall 11 of the super high-rise building core tube 1, and the two ends of the double-headed bolt 21 are respectively penetrated with an inner steel plate 22 and an outer steel plate 23 for clamping the outer wall 11, and the inner steel plate 22 and the outer steel plate 23 are fixed by a locking nut 24 matched with the double-headed bolt 21.

[0038] Preferably, a rubber shock pad 25 is arranged between the inner steel plate 22 and the inner wall of the outer wall 11, and between the outer steel plate 23 and the outer wall of the outer wall 11.

[0039] Preferably, the double-headed bolt 21 is penetratingly matched with the spherical hinge seat 31, the spherical hinge seat 31 is attached to the outside of the outer steel plate 23, and the locking nut 24 is crimped on the outside of the spherical hinge seat 31.

[0040] Preferably, one end of the double-headed bolt 21 located on the inside of the outer wall 11 is connected with a locking nut 31, and the end crimped on the outside of the spherical hinge seat 31 is connected with three locking nuts 31.

[0041] Preferably, the flange assembly 5 includes a flange plate one 51 connected with the end of the spandrel bar 4, and a flange plate two 52 connected with the tower body 6, and the flange plate one 51 and the flange plate two 52 are connected through a bolt set 53.

[0042] A construction method of a tower crane adaptive attachment device for a super high-rise building core tube, which adopts the tower crane adaptive attachment device for a super high-rise building core tube described in the above technical solution, and the control unit is set with a threshold value, and the hydraulic push rod is automatically adjusted when the distance change is greater than or equal to 10 cm or the inclination angle change is greater than or equal to 5°.

[0043] Example 1: conventional variable cross-section super high-rise core tube adaptive attachment device Application scenario: 150-250m super high-rise residential / office building core tube, rectangular cross-section, cross-section gradually changes from 5m×5m to 3.5m×3.5m during construction, no obvious eccentricity, and requires efficient adaptation to spacing changes.

[0044] 1. Structure composition Pre-embedded component 2: M36 double-end bolt 21, material 40Cr, matched with 20mm thick Q345 inner / outer steel plates 22 / 23, size 350mm x 350mm; 8mm thick nitrile rubber shock-absorbing pads 25 are pasted between the inner steel plate and the inner wall of the core wall 11, and between the outer steel plate and the outer wall of the core wall; one M36 locking nut 24 is used to fix the inner side end of the outer wall, and three locking nuts 24 are used to press the ball joint seat 31 on the outer side end.

[0045] Ball joint component 3: ball joint seat 31, cast steel ZG270-500, spherical radius 60mm, pasted with outer steel plate 23; hinged ball 32, material 20# steel, surface chrome-plated, welded with hydraulic push rod; angle sensor 71, model GY-65, accuracy ±0.1°, distance sensor 72, model VL53L0X, accuracy ±2mm, both bolted to the outer side of the ball joint seat 31 and facing the tower body 6 direction.

[0046] Wall-attached rod 4: single-stage hydraulic push rod is selected, stroke 600mm, rated thrust 120kN, cylinder diameter 130mm, rod diameter 90mm, built-in displacement sensor, model KTC-1, accuracy ±0.5mm, connected with control unit 7 through CAN bus.

[0047] Flange component 5: flange plate one 51, 20mm thick Q345, size 280mm x 280mm, welded with the end of the hydraulic push rod, flange plate two 52 of the same specification, welded with the tower body 6, connected through 6 groups of M24 high-strength bolt groups 53, pre-tightening torque 480N・m.

[0048] Control unit 7: PLC controller is used, model S7-1200, preset adjustment threshold: when the distance change is ≥10cm or the inclination change is ≥5°, the hydraulic push rod is automatically triggered to extend or retract; equipped with a 7-inch touch screen, which displays sensor data and push rod status in real time.

[0049] 2. Working principle Pre-embedded stage: double-end bolts 21 are pre-embedded when the core wall 11 is poured, and after the concrete strength reaches C30, the inner / outer steel plates and rubber shock-absorbing pads are installed, and the locking nuts 24 are tightened to prevent loosening, and then the ball joint seat 31 is assembled and the three nuts on the outer side are locked.

[0050] Initial debugging: after the hydraulic push rod is connected to the hinged ball 32 and the flange plate one 51 at both ends, and the flange plate two 52 is fixed to the tower body 6, the control unit 7 calibrates the sensor zero point, sets the initial distance and inclination, such as 4m and 0° when arranged horizontally.

[0051] Automatic adjustment: when the core tube is constructed to a height of 180 m, the cross-section is reduced, causing the distance between the tower body and the outer wall to increase to 4.15 m, exceeding the 10 cm threshold. The distance sensor 72 feeds back data to the control unit 7, and the PLC drives the hydraulic push rod to extend by 15 mm. The inclination is monitored synchronously by the angle sensor 71, and the inclination is maintained at 0°. After the adjustment is completed, the push rod length is automatically locked, and the entire process takes 45 minutes.

[0052] Dynamic monitoring: during construction, the control unit collects sensor data every 5 seconds. If the inclination changes slightly due to wind or lifting load, such as 3°, the push rod length is adjusted in real time to ensure that the tower body verticality deviation is ≤1‰.

[0053] 3. Beneficial effects Adapt to the gradual spacing of conventional variable cross-sections, without disassembling the support, saving 80% of labor costs; Dual-sensor linkage adjustment to avoid manual measurement errors, with a tower body verticality qualification rate of 100%; Simple foundation structure, easy to mass-produce and install on site, with a single set of device installation time ≤8 hours.

[0054] Example 2: Large eccentricity super-high-rise core tube self-adaptive attachment device Application scenario: 250-300m super-high-rise office building, core tube adjacent to existing building, eccentricity 1.2m, cross-section L-shaped, need to balance eccentric load to avoid tower body inclination.

[0055] 1. Structural optimization compared to Example 1 Wall attachment rod arrangement: a total of 5 groups of hydraulic push rods, of which 3 groups are inclined and arranged on the eccentric side at an angle of 50° to the horizontal direction, with a rated thrust of 180kN and a stroke of 800mm; 2 groups are horizontally arranged on the non-eccentric side, with a rated thrust of 100kN and a stroke of 500mm, forming a "eccentric support system".

[0056] Sensor upgrade: pressure sensor PT124G-25MPa with an accuracy of ±0.5%FS is additionally installed on the eccentric side ball head hinge seat 31 to monitor the stress state of the hydraulic push rod and avoid local overload.

[0057] Control logic optimization: the control unit 7 adds a "load balancing algorithm". When the eccentric side pressure sensor feedback value exceeds the non-eccentric side by 20%, the inclined push rod length is automatically adjusted, such as extended by 8mm, to balance the eccentric torque; the adjustment threshold retains the basic trigger condition of "distance ≥10cm / inclination ≥5°".

[0058] 2. Working principle When the core tube is constructed to a height of 220 m, the L-shaped cross-section eccentricity causes the tower body to have a tendency to tilt towards the existing building, with an inclination of 5.2°, exceeding the threshold. The angle sensor 71 and the pressure sensor synchronously feed back data.

[0059] The control unit 7 drives the 3 sets of eccentric side tilt push rods to synchronously extend 12 mm, and the 2 sets of horizontal push rods to shorten 5 mm, thereby correcting the tower body inclination to 3.8° through “pull-pressure cooperation”, which is lower than the threshold value, and the pressure sensor monitors the stress equalization, and the pressure difference between the eccentric side and the non-eccentric side is reduced to within 10%.

[0060] No manual intervention is required throughout the process, and the adjustment takes 55 minutes, avoiding the cumbersome process of additional assembly of counterweights required by traditional devices.

[0061] 3. Beneficial effects The eccentric weight support and load balancing algorithm is adapted to large eccentric working conditions, and the tower body inclination is controlled within 0.5%.

[0062] The pressure sensor monitors the stress in real time to avoid overload damage to the rod members, and the equipment failure rate is reduced by 90%.

[0063] No need to remove temporary supports beside existing buildings to ensure the safety of the surrounding environment.

[0064] Example 3: Regular octagonal section super high-rise core tube self-adaptive attachment device Applicable scenario: 300m super high-rise commercial complex, core tube is regular octagonal, side length is 6m, tower crane needs 360° full rotation operation, requires symmetrical stress to avoid local stress concentration.

[0065] 1. Structure composition Pre-buried node: 1 pre-buried component 2 is arranged at the midpoint of each side of the regular octagonal outer wall 11, and there are 8 nodes with an included angle of 45° between the nodes; each pre-buried component uses M40 double-headed bolts 21, and the inner / outer steel plate size is 400mm×400mm with a thickness of 25mm; the rubber shock pad is a multi-layer composite structure, nitrile rubber + steel mesh, with a total thickness of 10mm.

[0066] Wall-attached rod member: 8 groups of hydraulic push rods are symmetrically arranged, each group has an included angle of 22.5° with the tangent direction of the tower body 6, and a double-stage hydraulic push rod is used with a stroke of 1000mm, a rated thrust of 150kN, a cylinder diameter of 150mm, and built-in displacement and angle sensors integrated at the end of the push rod.

[0067] Control unit: a “synchronous adjustment module” is added, and the adjustment amount deviation of the 8 groups of push rods is ≤2mm to ensure symmetrical stress; the tower crane rotation control system is connected, and when the tower crane rotates to a certain direction, such as the front, the locking force of the corresponding side push rod is automatically strengthened to improve stability.

[0068] 2. Working principle When the core tube is constructed to 280m, the side length of the regular octagonal section increases from 6m to 7m, and the distance between the tower body and the outer wall increases from 4.5m to 5.2m, which exceeds 70cm, far exceeding the 10cm threshold. After the distance sensor 72 feeds back the data, the control unit 7 starts the synchronous adjustment module, and 8 groups of push rods are synchronously elongated by 70 mm. The displacement sensor real-time calibrates the adjustment amount, and the deviation is ≤1.5 mm, ensuring that each group of push rods is uniformly stressed, and the pressure difference is ≤5%. When the tower crane is in full rotation operation, the control unit receives the rotation signal. When the jib is turned to the east side and corresponds to 2 groups of push rods, the locking pressure of the push rod on that side is automatically increased by 10%, so as to avoid the loosening of the push rod due to load eccentricity.

[0069] 3. Beneficial effects 8 nodes are symmetrically arranged to adapt to polygonal sections, meeting the 360° full rotation requirement, and the operation efficiency of the tower crane is improved by 25%.

[0070] The synchronous adjustment module avoids local stress concentration, and the local compressive stress of the core tube outer wall is reduced from the traditional 15 MPa to 8 MPa.

[0071] The multilayer composite shock pad reduces rotation vibration and protects the suspended ceiling and pipelines in the commercial area of the core tube.

[0072] Embodiment 4: Self-adaptive attachment device for vibration-sensitive area of super-high-rise core tube Application scenario: 200 m super-high-rise hotel, adjacent to ancient buildings, core tube construction needs to control vibration, vibration amplitude ≤1.5 mm, and the section is elliptical with a large variable cross-section amplitude.

[0073] 1. Structure optimization Shock absorption structure upgrade: spring shock absorber is added between the inner / outer steel plate and the outer wall, model JGF-20, stiffness 50 N / mm, and rubber shock pad 25 forms a “spring-rubber” composite shock absorption system, vibration attenuation rate reaches 80%; The outer side of the hydraulic push rod cylinder is wrapped with soundproof cotton with a thickness of 50 mm to reduce operating noise.

[0074] Sensor addition: vibration sensor is installed in the ball joint seat 31, model SDJ-1, accuracy ±0.01 mm / s, real-time monitoring of tower crane vibration amplitude, control unit preset vibration threshold ≤1.5 mm, when exceeding, automatically reduce the push rod adjustment speed. From 5 mm / s to 2 mm / s, reduce the vibration impact in the adjustment process.

[0075] Hydraulic push rod optimization: low-speed stable type hydraulic push rod is adopted, adjustment speed 2-8 mm / s adjustable, built-in buffer valve, avoiding rigid impact when the push rod extends and retracts.

[0076] 2. Working principle The core tube elliptical section gradually changes from a major axis of 8 m and a minor axis of 6 m to a major axis of 10 m and a minor axis of 7 m, and the distance between the tower body and the outer wall increases from 5 m to 6.2 m in the major axis direction, exceeding 1.2 m; After the distance sensor triggers the adjustment, the control unit 7 adjusts the push rod adjustment speed to 3 mm / s according to the vibration sensor feedback, and reduces the vibration through "slow adjustment + buffer valve"; During the adjustment process, the vibration sensor monitors in real time. If the vibration rises to 1.4 mm due to hoisting heavy load, close to the threshold, the control unit automatically suspends the adjustment, and continues after the load is stable, ensuring that the vibration amplitude is always ≤1.5 mm, protecting the surrounding ancient buildings.

[0077] 3. Beneficial effects The composite damping system and low-speed adjustment strategy control the vibration amplitude to 1.2-1.5 mm, meeting the requirements of sensitive areas.

[0078] The vibration sensor is linked with the adjustment speed to avoid secondary vibration during the adjustment process.

[0079] The soundproof cotton design reduces equipment noise, meeting the environmental protection requirements of hotel construction, with noise ≤60 dB.

[0080] Example 5: 350m or more super high-rise core tube self-adaptive attachment device Application scenario: 380m super high-rise landmark building, core tube with circular cross section, high construction height, large wind load, requiring remote monitoring and high-strength structure.

[0081] 1. Structure composition High-strength structure: The double-end bolt 21 of the embedded component is made of 42CrMo material with a tensile strength ≥1080MPa, and the inner / outer steel plate is Q690 high-strength steel with a thickness of 30mm; The ball hinge component 3 is made of forged steel 40CrNiMoA, with a spherical hardness of HRC30-35, and an anti-wear ability improved by 50%.

[0082] Sensor and control upgrade: Industrial-grade Internet of Things sensors are used, with angle sensor model WT901C and distance sensor model TF-Luna, supporting 4G remote transmission; The control unit 7 is connected to the project smart construction site platform, and management personnel can remotely view sensor data and adjustment parameters, and automatically send SMS warnings in case of abnormalities, such as a spacing deviation of 20 cm.

[0083] Wind resistance optimization: The hydraulic push rod has a built-in wind pressure compensation valve. When the wind speed ≥12m / s, the push rod locking pressure is automatically increased from 20MPa to 25MPa, enhancing the wind resistance stability.

[0084] 2. Working principle When the core tube construction reaches 350m, the diameter of the circular cross section increases from 7m to 8m, and the distance between the tower body and the outer wall increases from 5.5m to 6.3m, exceeding 80cm.

[0085] The distance sensor transmits data to the smart construction site platform via the 4G network. The control unit automatically triggers adjustment, the hydraulic push rod extends 80mm, and the wind pressure compensation valve sets the locking pressure to 22MPa based on the real-time wind speed of 10m / s.

[0086] When no one is working at night, the control unit enters "duty mode" and collects data every 10 minutes. If the inclination angle reaches 5.5° due to strong winds, it immediately starts remote adjustment and sends an early warning text message to the management personnel to avoid nighttime accidents.

[0087] 3. Beneficial effects High-strength materials and wind-resistant design are adapted to the wind loads of ultra-high-rise buildings, and the equipment's anti-destruction ability is increased by 60%.

[0088] Remote monitoring and early warning functions reduce the number of on-site personnel and reduce management costs by 40%.

[0089] Access to the smart construction site platform enables digital management of "construction-monitoring-adjustment", meeting the intelligent needs of super-high-rise projects.

[0090] The above embodiments cover the mainstream operating conditions of the core tube of super-high-rise buildings. All of them use the core design of "automatic monitoring-intelligent adjustment" to verify the advantages of the present invention in adaptability, safety, and efficiency. The structural parameters and control strategies can be flexibly adjusted according to specific project requirements.

[0091] Finally, it should be noted that the parts not described in detail in the above embodiments are common knowledge known to those skilled in the art.

[0092] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An adaptive tower crane attachment device for a super high-rise building core tube, characterized by: The invention comprises an embedded component (2) connected to a core tube (1) of a super high-rise building, wherein the embedded component (2) is connected to a length-adjustable wall-attached rod (4) via a ball joint component (3), and the wall-attached rod (4) is connected to a tower body (6) of a tower crane via a flange component (5). The wall-attached rod (4) is a hydraulic push rod connected to a control unit (7), and the control unit (7) is connected to an angle sensor (71) for monitoring the angle change of the ball joint component (3) and a distance sensor (72) for monitoring the distance change between the core tube (1) of the super high-rise building and the tower body (6). The control system automatically controls the extension and retraction of the hydraulic push rod according to feedback data from the angle sensor (71) and the distance sensor (72).

2. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 1 is characterized in that: A plurality of wall-attached rods (4) are connected between the super high-rise building core tube (1) and the tower body (6).

3. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 2 is characterized in that: An inclined wall-attached rod (4) and / or a horizontally arranged wall-attached rod (4) are connected between the super high-rise building core tube (1) and the tower body (6).

4. The tower crane adaptive attachment device for a super high-rise building core tube according to any one of claims 1 to 3, characterized in that: The ball joint assembly (3) comprises a ball joint seat (31) connected to the embedded assembly (2), a hinged ball head (32) connected to the wall-attached rod (4), and an angle sensor (71) and a distance sensor (72) are both arranged on the ball joint seat (31).

5. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 4 is characterized in that: The embedded component (2) comprises a stud bolt (21) inserted and matched with the outer wall (11) of the core tube (1) of the super high-rise building, an inner steel plate (22) and an outer steel plate (23) for clamping the outer wall (11) are inserted at both ends of the stud bolt (21), and the inner steel plate (22) and the outer steel plate (23) are fixed by a locking nut (24) adapted to the stud bolt (21).

6. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 5 is characterized in that: Rubber shock-absorbing pads (25) are provided between the inner steel plate (22) and the inner wall of the outer wall (11), and between the outer steel plate (23) and the outer wall of the outer wall (11).

7. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 5 or 6, characterized in that: The stud bolt (21) is inserted and matched with the ball hinge seat (31), the ball hinge seat (31) is attached to the outside of the outer steel plate (23), and the locking nut (24) is pressed onto the outside of the ball hinge seat (31).

8. The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 7 is characterized in that: One end of the stud bolt (21) located on the inner side of the outer wall (11) is connected to a locking nut (31), and the other end crimped onto the outer side of the ball joint seat (31) is connected to three locking nuts (31).

9. The tower crane adaptive attachment device for a super high-rise building core tube according to any one of claims 1-3, 5, 6, and 8, characterized in that: The flange assembly (5) comprises a flange plate 1 (51) connected to the end of the wall-attached rod (4) and a flange plate 2 (52) connected to the tower body (6). The flange plate 1 (51) and the flange plate 2 (52) are connected via a bolt group (53).

10. A construction method for a tower crane adaptive attachment device for a super high-rise building core tube, characterized by: The tower crane adaptive attachment device for the core tube of a super high-rise building according to claim 9 is used, wherein the control unit is set with a threshold value, and when the distance changes by ≥10 cm or the inclination angle changes by ≥5°, the hydraulic push rod is triggered to automatically adjust.

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