An electric-controlled rotary steel platform integral lifting device and construction method thereof

Abstract

The present invention discloses an electric-controlled rotary steel platform integral lifting device and a construction method thereof, which belongs to the technical field of super high-rise building construction, and is used to solve the problems of large deadweight of the lifting equipment, discontinuous lifting, and need for manual assistance during the lifting of the integral steel platform. The device consists of a rotary lifting system, a steel platform system, and a bottom support system. The construction method, first, completes the combined installation of the rotary lifting system, the steel platform system, and the bottom support system; secondly, turns on the motor to make the rotary lifting wheel start to rotate forward, and the gravity load of the entire steel platform system is borne entirely by the rotary lifting system to prepare for lifting; then, operates the motor to complete the overall lifting of a standard layer of a steel platform system; then, turns off the electric control system of the rotary lifting system, so that the gravity load of the entire steel platform system is borne entirely by the bottom support system; then, completes the construction of a standard layer of reinforced concrete structure; finally, performs lifting of the next standard layer.

Description

Technical Field

[0001] The invention relates to an electric-controlled rotary steel platform integral lifting device and a construction method thereof, belonging to the technical field of super high-rise building construction. Background Art

[0002] The construction of super high-rise buildings in my country mainly adopts two technical systems: the integral steel platform system and the hydraulic climbing formwork system. Among them, the integral steel platform is a super high-rise building construction technology system generally recognized by my country's construction engineering industry. It has been fully practiced in major projects such as the Oriental Pearl TV Station, Shanghai Jinmao Tower, Shanghai World Financial Center and Shanghai Tower, and has formed a relatively complete technical system. The integral steel platform system has been widely used in my country's super high-rise building construction projects.

[0003] At present, the overall steel platform mainly adopts the method of hydraulic actuation cylinder + climbing column to realize the overall lifting method of the steel platform. The use of hydraulic actuation cylinder requires the installation of heavy-duty equipment such as hydraulic oil source on the overall steel platform to be lifted together with the steel platform, which increases the overall weight of the steel platform, so that when the steel platform is lifted, it is necessary to lift other equipment such as hydraulic oil source while lifting the main structure of the steel platform. Since the height of the standard floor of a super-high-rise building is generally about 4m, the general cylinder actuator cannot reach such a large stroke. At present, the cylinder actuator is generally used in conjunction with the lattice column, which requires step-by-step lifting. The lifting height of each step is about 0.2m, so as to achieve discontinuous overall lifting of the steel platform. This lifting method has very strict requirements on the coordinated control of the lifting device. If the lifting device cannot be strictly synchronized, it will cause differential deformation and secondary stress of the steel platform structure beam, which will then cause the risk of affecting the safety of the steel platform. In addition, the step-by-step lifting method of the steel platform will produce setback vibration, which is not conducive to the overall safety of the steel platform structure. After the steel platform is lifted, the climbing column needs to be lifted. The existing lifting device using hydraulic cylinder actuators requires manual assistance during the lifting operation. In addition, since a hydraulic oil source power system is used and the object to be lifted also includes the hydraulic oil source system itself, the process of lifting the entire steel platform along the climbing column consumes a lot of energy.

[0004] Therefore, there is an urgent need for an efficient and environmentally friendly overall steel platform lifting technology to improve the existing overall steel platform construction technology system for super high-rise buildings.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information is the prior art known to ordinary technicians in the field. Summary of the invention

[0006] The purpose of the present invention is to solve the problems faced in the lifting process of the integral steel platform, such as the heavy weight of the lifting equipment, discontinuous lifting, and the need for manual assistance, overcome the shortcomings of the prior art, and provide an electric-controlled rotary lifting steel platform integral lifting device and a construction method thereof. In order to achieve the above purpose, the technical solution of the present invention is:

[0007] The electric-controlled rotary steel platform integral lifting device of the present invention is used for the construction of the core tube structure of a super high-rise building, and comprises a rotary lifting system, a steel platform system, and a bottom support system;

[0008] The lifting system consists of a lifting column, a lifting column support, a lifting wheel, a front lifting wheel lifting shoe, a rear lifting wheel lifting shoe, a motor, a motor gear, a lifting bracket, and a transverse fixing rod; the lifting column is a steel hollow cylinder, and the outer wall of the lifting column is provided with a continuous rotating and rising thread; the lifting column support is located below the lifting column, and is fixed to the upper end of the core tube structure that has been cast through a fixing screw hole at the lower end; the lifting wheel is a centrally symmetrical steel hollow circular wheel-shaped component, the outer side of the lifting wheel is provided with biting teeth, and the center of the lifting wheel is a cylindrical threaded hole, and the thread of the cylindrical threaded hole can be tightly engaged with the thread of the lifting column; the front lifting wheel lifting shoe and the rear lifting wheel lifting shoe are semi-cylindrical steel components with fixed side wings of the same specifications, and the two are connected to a firm cylindrical structure by bolts, and the top of the inner side of the cylinder of the front lifting wheel lifting shoe and the rear lifting wheel lifting shoe Both are provided with closed annular lifting buckles, which can be tightly embedded in the lifting groove at the bottom of the rotary lifting wheel. The rotary lifting wheel drives the front rotary lifting wheel lifting boot and the rear rotary lifting wheel lifting boot to move up and down together under the drive of the motor. At the same time, the rotation of the rotary lifting wheel will not drive the front rotary lifting wheel lifting boot and the rear rotary lifting wheel lifting boot to rotate together; the lifting bracket is a steel vertical component, the upper ends of the two lifting brackets are firmly connected to the front rotary lifting wheel lifting boot and the rear rotary lifting wheel lifting boot respectively, the lower ends of the two lifting brackets are firmly connected to the two lifting steel beams respectively, and two horizontal fixing rods are fixed to the sides of the two lifting brackets to connect the two lifting brackets into a whole; the lifting steel beam is a component connecting the steel platform system and the lifting system, and the lifting system drives the overall steel platform system to be lifted as a whole by lifting the lifting steel beam; the steel platform system is composed of a top platform, an internal hanging scaffolding, and an external hanging scaffolding;

[0009] The bottom support system is installed on the bottom platform of the internal scaffolding of the steel platform system, and plays a role in supporting and fixing the upper steel platform system during the core tube structure construction stage.

[0010] Compared with the prior art, the beneficial technical effects of the present invention are:

[0011] (1) The electric-controlled rotary steel platform integral lifting device of the present invention has a light weight and is more environmentally friendly. Since the weight of the electric-controlled device is much lighter than that of the hydraulic actuating cylinder and the hydraulic servo oil source, the energy consumption of the lifting operation can be reduced. In addition, the electric-controlled device occupies less space, providing a larger operating space for the integral steel platform.

[0012] (2) The electric-controlled rotary steel platform overall lifting device of the present invention has low power and can provide continuous lifting capacity. Due to the amplification effect of the "motor-swinging wheel gear" and the "swinging wheel-swinging column thread", multiple motors are equipped at the same time, and each motor only needs to have a small power to provide sufficient torque to drive the rotating wheel to rotate, thereby realizing the overall lifting of the steel platform, which reduces the power supply requirements at the construction site; because the rotation output by the motor is continuous, the rotation of the rotating wheel and the overall lifting of the steel platform are also continuous, thereby avoiding the setbacks and vibrations of the traditional lifting method, which is beneficial to the safety of the steel platform structure.

[0013] (3) The construction method of the electric-controlled rotary steel platform integral lifting device of the present invention can accurately control the lifting state without manual assistance. The lifting speed of the rotary system directly depends on the rotation speed of the motor. The rotation speed of the motor can be accurately controlled by the electric control system so that all rotary systems can maintain the same lifting speed to avoid the unfavorable situation caused by the tilt of the steel platform and the differential lifting; the overall lifting mode of the steel platform and the lifting mode of the rotary column can be switched by simply switching the rotation direction of the motor, without manual assistance, which improves the automation rate of the construction equipment.

[0014] Preferably, an oil collecting groove is provided at the upper end of the rotating column support, an oil collecting box is suspended at the side end thereof, and the oil collecting groove is provided with a flow outlet, so that the lubricating oil in the groove can flow into the oil collecting box.

[0015] Preferably, a concave annular lifting groove is provided at the lower portion of the lifting wheel for lifting the front lifting wheel lifting shoe and the rear lifting wheel lifting shoe.

[0016] Preferably, the motor is fixed on the sides of the front lifting wheel lifting boot and the rear lifting wheel lifting boot, and the four motors are symmetrically arranged. The motor gear installed on the drive shaft of each motor is tightly engaged with the teeth on the outside of the lifting wheel. The coordinated rotation of the four motors can drive the rotation of the lifting wheel, and the number of teeth on the motor gear is less than the number of teeth on the lifting wheel.

[0017] Preferably, the bottom support system consists of a laying corbel, a corbel fixing boot, a corbel actuator, a top wall roller, a top wall roller spring, and a top wall roller fixing seat; the laying corbel has its freedom in two directions fixed by the corbel fixing boot, the corbel fixing boot is firmly fixed on the bottom platform beam of the steel platform system, and the laying corbel extends into the corbel load-bearing pin shell, thereby transmitting the gravity load of the entire steel platform system to the core tube structure; the top wall roller is a horizontally placed steel roller, the rear end of which is pulled by the top wall roller spring and the top wall roller fixing seat, the top wall roller fixing seat is firmly fixed on the bottom platform of the internal scaffolding, the top wall roller can roll up and down along the inner wall of the core tube, and has a certain degree of telescopic freedom, playing an auxiliary positioning role in the overall lifting process of the steel platform system, to prevent the internal scaffolding from colliding or scratching the inner wall of the core tube when the steel platform system is tilted and lifted.

[0018] Preferably, the steel platform system consists of a top-level platform, an internal scaffolding, and an external scaffolding; the top-level platform is located at the top of the steel platform system, and consists of a top-level platform beam, a top-level platform panel, and a top-level platform protective enclosure; the top-level platform panel is laid on the top-level platform beam to form a plane convenient for people to walk and work, and the top-level platform protective enclosure is vertically arranged around the top-level platform; the internal scaffolding is a frame structure containing multiple operating layers, and is located inside the core tube of a super-high-rise building; the external scaffolding is located outside the core tube structure, hung under the top-level platform beam, and consists of an external scaffolding hanger and an external scaffolding operating layer structural beam; the external scaffolding hanger is a vertical steel rod, the upper end of which is connected and fixed to the lower end of the top-level platform beam, and the multi-layer external scaffolding operating layer structural beams are fixedly connected to the middle and bottom of the external scaffolding hanger, and the external scaffolding operating layer panel is laid on it.

[0019] As a preferred embodiment, during the overall lifting stage of the steel platform, the gravity load of the entire steel platform system is borne entirely by the rotating lifting system, and multiple rotating lifting systems work in parallel at the same time. The number of rotating lifting systems is set according to design requirements, and a set of electric control system coordinates and controls the forward rotation of each rotating lifting wheel, which can continuously and smoothly achieve the overall lifting of the steel platform system; after the steel platform system is lifted into place as a whole, the shelving corbel extends into the corbel load-bearing pin housing, and the gravity load of the entire steel platform system is borne entirely by the bottom support system. The electric control system coordinates and controls the reverse rotation of each rotating lifting wheel, which can continuously and smoothly achieve the lifting of the rotating lifting column.

[0020] The present invention also provides a construction method for a super high-rise building core tube structure using an electric-controlled rotary steel platform integral lifting device, the construction method comprising the following steps:

[0021] Step 1: Complete the combined installation of the rotation system, steel platform system, and bottom support system according to the design requirements. At this time, the bracket is placed in the bracket bearing pin shell on the inner wall of the core tube section n+1 standard layer, and the gravity load of the entire steel platform system is borne entirely by the bottom support system; the lifting steel template is fixed on the core tube section n+3 standard layer, and the core tube section n+3 standard layer has sufficient strength to carry out the overall lifting operation of the steel platform;

[0022] Step 2, preparation for lifting: firmly fix the lifting column support to the upper end of the standard layer of the n+3th section of the core tube; turn on the electric control system of the lifting system, control the motor to rotate, and make the lifting wheel start to rotate forward, driving the entire steel platform system to lift a small height. At this time, the gravity load of the entire steel platform system is borne by the lifting system. At the same time, the contact between the shelving corbel and the corbel bearing pin shell on the inner wall of the standard layer of the n+1th section of the core tube is loosened, and the corbel actuator is controlled to retract the shelving corbel;

[0023] Step 3: Overall lifting: operate the electric control system to control the motor to rotate, so that the lifting wheel starts to rotate forward, driving the entire steel platform system to continuously lift the height of one standard floor; operate the electric control system to control the motor to stop rotating, and complete the overall lifting of the steel platform by one standard floor; at this time, the shelving bracket is slightly higher than the bracket bearing pin shell on the inner wall of the standard floor of the core tube section n+2;

[0024] Step 4, bottom fixation: control the corbel actuator to extend the placed corbel into the corbel bearing pin housing on the inner wall of the standard layer of the n+2 section of the core tube; operate the electric control system to control the motor to drive the lifting wheel to rotate in the opposite direction, so that the entire steel platform system is lowered by a small height as a whole, and then the placed corbel and the corbel bearing pin housing on the inner wall of the standard layer of the n+2 section of the core tube are in contact. At this time, the gravity load of the entire steel platform system is borne by the bottom support system and transmitted to the standard layer of the n+2 section of the core tube; loosen the connection between the lifting column support and the upper end of the standard layer of the n+3 section of the core tube to disconnect the two; operate the electric control system to control the motor to drive the lifting wheel to continue to rotate in the opposite direction, so as to realize the overall lifting of the lifting column and the lifting column support, and the lifting height is the height of a standard layer, so as to leave space for the construction of the standard layer structure of the n+4 section of the core tube; turn off the electric control system of the lifting system;

[0025] Step 5, structural construction: tie up the steel structure of the standard layer of the core tube section n+4 according to the design requirements; loosen the lifting steel formwork fixed on the standard layer of the core tube section n+3, and lift the lifting steel formwork as a whole to the designed position of the standard layer of the core tube section n+4; install and fix the bracket bearing pin shell at the designed position of the inner wall of the standard layer of the core tube section n+4; use a high-pressure concrete pump to pump concrete slurry to the standard layer of the core tube section n+4, and complete the vibrating and pouring operation of the reinforced concrete structure of the standard layer of the core tube section n+4;

[0026] Step 6. Prepare for the next lift: Maintain the cast-in-place concrete for a period of time according to the design requirements to ensure that it has sufficient strength and prepare for the next level of overall lifting of the steel platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the electric-controlled rotary steel platform integral lifting device of the present invention installed on the integral steel platform.

[0028] Figure 2 It is a schematic diagram of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0029] Figure 3 It is a front view of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0030] Figure 4 It is a top view of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0031] Figure 5 This is a schematic diagram of the disassembly of the main components of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0032] Figure 6 It is a cross-sectional view of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0033] Figures 7 to 11 It is a schematic diagram of steps 2 to 6 of the construction method of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0034] Fig.12 It is a schematic diagram of the overall packaging of an integral steel platform using the electric-controlled rotary steel platform integral lifting device of the present invention.

[0035] Fig.13 It is a schematic diagram of the bracket placement of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0036] Fig.14 It is a schematic diagram of the top wall rollers of the electric-controlled rotary steel platform integral lifting device of the present invention.

[0037] In the figure:

[0038] 101-swing column, 102-swing column support, 103-swing wheel, 104-front swing wheel lifting shoe, 105-rear swing wheel lifting shoe, 106-motor, 107-motor gear, 108-lifting bracket, 109-lateral fixing rod, 110-fixing bolt, 111-lifting steel beam, 112-oil collecting box, 113-oil collecting tank;

[0039] 201-top platform steel beam of steel platform, 202-top platform panel, 203-inner scaffolding load-bearing square tube, 204-inner scaffolding operating layer structural beam, 205-inner scaffolding operating layer panel, 206-inner scaffolding construction ladder, 207-bottom platform beam of steel platform, 208-bottom platform panel, 209-external scaffolding hanger, 210-external scaffolding operating layer structural beam, 211-external scaffolding operating layer panel, 212-external scaffolding protection enclosure, 213-top platform protection enclosure;

[0040] 301-standard floor of the core tube section n+1, 302-standard floor of the core tube section n+2, 303-standard floor of the core tube section n+3, 304-standard floor of the core tube section n+4, 305-cast-in-place concrete, 306-reinforcement cage, 307-lifting steel formwork, 308-corbel load-bearing pin shell, 309-built core tube structure;

[0041] 401- resting corbel, 402- corbel fixing boot, 403- corbel actuator, 404- top wall roller, 405- top wall roller spring, 406- top wall roller fixing seat. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the electrically controlled rotary steel platform integral lifting device and its construction method proposed in the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer based on the following description and claims. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the accompanying drawings, but this cannot be a limitation of the technical solution of the present invention.

[0043] Embodiment 1

[0044] Please refer to Figures 1 to 14 , the electrically controlled rotary steel platform integral lifting device and the construction method thereof of the present invention are described in detail.

[0045] like Figures 1 to 14As shown, the core tube of this embodiment is a field-shaped configuration, with a total of four inner tubes, and the height of the standard layer of the core tube is 3.9m; multiple corbel bearing pin shells 308 are set at the lower position of the inner tube side walls of the core tube section n+1 standard layer 301, the core tube section n+2 standard layer 302, the core tube section n+3 standard layer 303, and the core tube section n+4 standard layer 304. The corbel bearing pin shell 308 is a groove-shaped prefabricated steel component, which is used to extend into the shelving corbel 401 during the core tube reinforced concrete pouring stage. The shelving corbel 401 transfers the load of the entire steel platform it bears to the corbel bearing pin shell 308, and then transfers it to the concrete core tube structure. During the core tube reinforced concrete pouring stage, the steel bars 306 are first tied according to the design plan, and then the lifting steel formwork 307 is installed according to the design requirements, and then the cast-in-place concrete 305 is poured and vibrated. After curing for a period of time as required, the lifting steel formwork 307 can be removed after the cast-in-place concrete 305 has formed strength.

[0046] The electrically controlled rotating steel platform integral lifting device in this embodiment consists of a rotating system, a steel platform system, and a bottom support system. There are nine sets of rotating systems and only one steel platform system, including a top platform, four internal scaffoldings, and four external scaffoldings, with a total weight of 300t. There are 16 sets of bottom support systems, and four sets of bottom support systems are installed on the bottom platform of each internal scaffolding.

[0047] Each lifting system consists of a lifting column 101, a lifting column support 102, a lifting wheel 103, a front lifting wheel lifting shoe 104, a rear lifting wheel lifting shoe 105, four motors 106 and motor gears 107 thereof, two lifting brackets 108, and two transverse fixing rods 109.

[0048] The rotating column 101 is 7.5m long, with a cross-sectional diameter of 30cm and an outer wall thread inclination of 0.1; the rotating column support 102 is a steel columnar member with a length of not less than 2.5m, welded to the bottom of the rotating column 101, and serves to support and fix the rotating column 101. A fixing screw hole is provided at the lower end of the rotating column support 102, and the rotating column support 102 can be firmly fixed to the upper end of the core tube structure that has been cast by screws. An oil collecting groove 113 is left at the upper end of the rotating column support 102, and an oil collecting box 112 is suspended at the side end. The oil collecting groove 113 has a flow outlet, and the lubricating oil in the groove can flow into the oil collecting box 112. The lifting wheel 103 is a centrally symmetrical steel hollow circular wheel-shaped member, with teeth formed on the outside of the lifting wheel 103, a cylindrical threaded hole in the center of the lifting wheel 103, the threads of which can be tightly engaged with the threads of the lifting column 101, and lubricating oil can be appropriately applied to the threads inside the lifting wheel 103, and a concave annular lifting groove is left at the bottom of the lifting wheel 103 for lifting the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105. The front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 are semi-cylindrical steel members with fixed side wings of the same specifications. A round hole for passing a fixing screw 110 is formed on the fixed flank of the front lifting wheel lifting boot 104, and a screw hole for screwing in the fixing screw 110 is formed on the fixed flank of the rear lifting wheel lifting boot 105. By tightening the fixing screw 110, the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 are combined into a firm cylindrical structure, and the lifting buckles at the top of the inner side of the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 are tightly embedded in the lifting groove at the bottom of the lifting wheel 103. The up and down movement of the lifting wheel 103 can drive the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 to move up and down together, while the rotational movement of the lifting wheel 103 will not drive the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 to rotate together.

[0049] Four motors 106 are symmetrically fixed on the sides of the front lifting wheel lifting boots 104 and the rear lifting wheel lifting boots 105. The four motors 106 are symmetrically arranged. The motor gear 107 installed on the transmission shaft of each motor 106 is tightly engaged with the teeth on the outer side of the lifting wheel 103. The coordinated rotation of the four motors 106 can drive the rotation of the lifting wheel 103. The number of teeth of the motor gear 107 is less than the number of teeth of the lifting wheel 103; the lifting bracket 108 is a steel vertical component, the upper ends of the two lifting brackets 108 are respectively firmly connected to the front lifting wheel lifting boots 104 and the rear lifting wheel lifting boots 105, the lower ends of the two lifting brackets 108 are respectively firmly connected to the two lifting steel beams 111, and two horizontal fixing rods 109 are fixed to the sides of the two lifting brackets 108 to connect the two lifting brackets 108 into a whole. The lifting steel beam 111 is a component connecting the steel platform system and the lifting system. The lifting system drives the entire steel platform system to be lifted by pulling the lifting steel beam 111.

[0050] The working principle of the lifting system is as follows: the motor 106 drives the motor gear 107 to rotate, driving the lifting wheel 103 to rotate forward around the lifting column 101, and the inner thread of the lifting wheel 103 climbs along the outer thread of the lifting column 101, driving the lifting wheel 103 to climb upward, and the lifting wheel 103 then drives the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 to lift synchronously, lifting the front lifting wheel lifting boot 104 and the rear lifting wheel lifting boot 105 to lift the lifting bracket 108 and the lifting steel beam 111, and lifting the steel beam 111 further lifts the entire steel platform system. The described lifting system is installed in parallel on the steel platform system, and is coordinated and controlled by a unified electric control system to work together, and synchronously realize the overall lifting of the steel platform system.

[0051] The steel platform system is a large-scale integral frame construction scaffolding system for the concrete pouring construction of the core tube structure of a super high-rise building, which is composed of a top platform, an internal scaffolding, and an external scaffolding. The top platform is located at the top of the steel platform system, and is composed of a top platform beam 201, a top platform panel 202, and a top platform protective enclosure 213; the top platform beam 201 is a high-strength H-shaped steel beam, which is the main load-bearing component of the steel platform system. Multiple top platform beams 201 are connected to each other to form a platform slightly larger than the cross-section of the core tube of a super high-rise building. The top platform panel 202 is laid on the top platform beam 201 to form a plane that is convenient for people to walk and work. The top platform protective enclosure 213 is erected around the top platform to protect workers from falling.

[0052] The internal hanging scaffolding is a frame structure with multiple operating layers, which is located inside the core tube of the super high-rise building. The main structure is composed of internal hanging scaffolding load-bearing square tubes 203, internal hanging scaffolding operating layer structural beams 204, and bottom platform beams 207. The internal hanging scaffolding load-bearing square tubes 203 are vertical steel members, the upper end of which is firmly connected to the lower end of the top platform beam 201, the lower part of the internal hanging scaffolding load-bearing square tubes 203 is firmly connected to the bottom platform beam 207, and the middle part is firmly connected to multiple groups of internal hanging scaffolding operating layer structural beams 204; the bottom platform beam 207 is a relatively high-strength H-shaped steel beam, and multiple bottom platform beams 207 are connected to the bottom platform beam 207. 07 are interconnected to form a platform which is slightly smaller than the inner tube of the core tube. The bottom platform panel 208 is laid on the bottom platform beam 207 to form a platform for people to walk and work. The internal hanging scaffolding operating layer structural beams 204 of each layer are interconnected and fixed to form a horizontal layer. The internal hanging scaffolding operating layer panel 205 is laid on the internal hanging scaffolding operating layer structural beams 204 to form an operating layer for people to walk and work. Internal hanging scaffolding construction ladders 206 are set between the operating layers, between the operating layer and the top platform, and between the operating layer and the bottom layer to facilitate people to go up and down.

[0053] The external scaffolding is located outside the core tube structure and is hung below the top platform beam 201. It consists of an external scaffolding hanger 209 and an external scaffolding operating layer structural beam 210. The external scaffolding hanger 209 is a vertical steel rod, and the upper end is connected and fixed to the lower end of the top platform beam 201. The multi-layer external scaffolding operating layer structural beam 210 is fixedly connected to the middle and bottom of the external scaffolding hanger 209, and the external scaffolding operating layer panel 211 is laid on it to form a multi-layer operating layer for personnel to walk and perform construction operations. The external scaffolding protective enclosure 212 is fixed on the outside of the entire external scaffolding to protect it from the occurrence of accidental falling hazards. There is only one top platform, and the number of internal scaffolding and external scaffolding depends on the cross-sectional form of the core tube structure of the super high-rise building.

[0054] The bottom support system is installed on the bottom platform of the internal scaffolding of the steel platform system. It supports and fixes the upper steel platform system during the core tube structure construction phase. It consists of a shelving corbel 401, a corbel fixing boot 402, a corbel actuator 403, a top wall roller 404, a top wall roller spring 405, and a top wall roller fixing seat 406. The shelving corbel 401 is a retractable steel component, whose extension and retraction are controlled by the corbel actuator 403, and its freedom in two directions is fixed by the corbel fixing boot 402. The corbel fixing boot 402 is firmly fixed on the bottom platform beam 207 of the steel platform system. The shelving corbel 401 extends into the corbel load-bearing pin shell 308, thereby transmitting the gravity load of the entire steel platform system to the core tube structure; the top wall roller 404 is a horizontally placed steel roller, and its rear end is pulled by the top wall roller spring 405 and the top wall roller fixing seat 406. The top wall roller fixing seat 406 is firmly fixed on the bottom platform of the internal scaffolding. The top wall roller 404 can roll up and down along the inner wall of the core tube and has a certain degree of extension and retraction freedom. It plays an auxiliary positioning role in the overall lifting process of the steel platform system to prevent the internal scaffolding from colliding or scratching the inner wall of the core tube when the steel platform system is tilted and lifted.

[0055] During the overall lifting stage of the steel platform, the gravity load of the entire steel platform system is borne entirely by the rotating lifting system. Multiple rotating lifting systems work in parallel at the same time. The number of rotating lifting systems is set according to design requirements. A set of electric control systems coordinates and controls the forward rotation of each rotating lifting wheel 103, which can continuously and smoothly realize the overall lifting of the steel platform system. After the steel platform system is lifted into place as a whole, the shelving bracket 401 is extended into the bracket load-bearing pin housing 308, and the gravity load of the entire steel platform system is borne entirely by the bottom support system. At this time, the electric control system coordinates and controls the reverse rotation of each rotating lifting wheel 103, which can continuously and smoothly realize the lifting of the rotating lifting column 101.

[0056] Embodiment 2

[0057] Please continue to refer to Figures 1 to 14This embodiment provides a construction method for constructing a core tube structure of a super high-rise building. The main steps of the construction method are as follows:

[0058] Step 1: Complete the combined installation of the rotation system, steel platform system, and bottom support system in accordance with the design requirements to meet all conditions for carrying out super-high-rise core tube structure construction work; at this time, the shelved corbel 401 is located in the corbel load-bearing pin shell 308 on the inner tube wall of the core tube section n+1 standard layer 301; the lifting steel formwork 307 is fixed on the core tube section n+3 standard layer 303, and the core tube section n+3 standard layer 303 has sufficient strength.

[0059] Step 2: Preparation for lifting. Fix the lifting column support 102 firmly on the upper end of the standard layer 303 of the n+3th section of the core tube; turn on the electric control system, control the motor 106 to rotate, and make the lifting wheel 103 start to rotate forward, driving the entire steel platform system to lift 2cm. At this time, the contact between the shelving corbel 401 and the corbel bearing pin housing 308 on the inner wall of the standard layer 301 of the n+1th section of the core tube is loose, and control the corbel actuator 403 to retract the shelving corbel 401.

[0060] Step 3: Overall lifting. Operate the electric control system to control the motor 106 to rotate, so that the lifting wheel 103 starts to rotate forward, driving the entire steel platform system to continuously lift the height of one standard floor; operate the electric control system to control the motor 106 to stop rotating, and complete the overall lifting of the steel platform by one standard floor; at this time, the shelving bracket 401 should be slightly higher than the bracket bearing pin shell 308 on the inner wall of the core tube section n+2 standard floor 302.

[0061] Step 4: Fix the bottom. Control the corbel actuator 403 to extend the resting corbel 401 and extend it into the corbel bearing pin housing 308 on the inner wall of the standard layer 302 of the n+2 section of the core tube; operate the electric control system to control the motor 106 to drive the lifting wheel 103 to rotate in the opposite direction, so that the entire steel platform system is lowered by a small height, and then the resting corbel 401 and the corbel bearing pin housing 308 on the inner wall of the standard layer 302 of the n+2 section of the core tube are in contact. At this time, the gravity load of the entire steel platform system is fully supported by the bottom. The system takes on the responsibility and transmits it to the standard floor 302 of the n+2 section of the core tube; loosens the connection between the rotating column support 102 and the upper end of the standard floor 303 of the n+3 section of the core tube to disconnect the two; operates the electric control system to control the motor 106 to drive the rotating wheel 103 to continue to rotate in the opposite direction, so as to realize the overall lifting of the rotating column 101 and the rotating column support 102, and the lifting height is the height of a standard floor, so as to leave space for the structural construction of the standard floor 304 of the n+4 section of the core tube; and turns off the electric control system of the rotating system.

[0062] Step 5: Structural construction. Tie up the steel structure of the standard layer 304 of the n+4 section of the core tube according to the design requirements; loosen the lifting steel formwork 307 fixed on the standard layer 303 of the n+3 section of the core tube, and use hand-cranked hoists and other methods to lift the lifting steel formwork 307 as a whole to the designed position of the standard layer 304 of the n+4 section of the core tube; install and fix the bracket bearing pin shell 308 at the designed position of the inner wall of the standard layer 304 of the n+4 section of the core tube; use high-pressure concrete pumps and other means to pump concrete slurry to the standard layer 304 of the n+4 section of the core tube, and complete the vibration and pouring of the reinforced concrete structure of the standard layer 304 of the n+4 section of the core tube. Step 6: Prepare for the next lift. Maintain the cast-in-place concrete 305 for five days according to the design requirements to make it have sufficient strength, and then prepare for the overall lifting of the next layer of the steel platform.

[0063] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention. Any changes and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An electric-controlled rotary steel platform integral lifting device, used for the construction of the core tube structure of a super high-rise building, characterized by: Including the rotation system, steel platform system and bottom support system; The lifting system is composed of a lifting column (101), a lifting column support (102), a lifting wheel (103), a front lifting wheel lifting shoe (104), a rear lifting wheel lifting shoe (105), a motor (106), a motor gear (107), a lifting bracket (108), and a transverse fixing rod (109); the lifting column (101) is a hollow steel cylinder, and the outer wall of the lifting column (101) is provided with a continuous rotating and ascending thread; the lifting column support (102) is located below the lifting column (101), and is fixed to the cast concrete through the fixing screw hole at the lower end. The lifting wheel (103) is a centrally symmetrical steel hollow circular wheel-shaped component, the outer side of the lifting wheel (103) is provided with teeth, the center of the lifting wheel (103) is a cylindrical threaded hole, the thread of the cylindrical threaded hole can be tightly engaged with the thread of the lifting column (101); the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications, and the two are connected by bolts to form a firm cylindrical structure, the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications, and the two are connected by bolts to form a firm cylindrical structure, and the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications ... front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications, and the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications, and the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105) are semi-cylindrical steel components with fixed side wings of the same specifications, and the front lifting wheel lifting boot (1 5) are provided with a closed annular lifting buckle at the top of the inner side of the tube, which can be tightly embedded in the lifting groove at the bottom of the rotating lifting wheel (103). The rotating lifting wheel (103) drives the front rotating lifting wheel lifting boot (104) and the rear rotating lifting wheel lifting boot (105) to move up and down together under the drive of the motor. At the same time, the rotation of the rotating lifting wheel (103) will not drive the front rotating lifting wheel lifting boot (104) and the rear rotating lifting wheel lifting boot (105) to rotate together; the lifting bracket (108) is a steel vertical component, and the upper ends of the two lifting brackets (108) are respectively connected to the front rotating lifting wheel lifting boot (10 4) is firmly connected to the rear rotating lifting wheel lifting boot (105), the lower ends of the two lifting brackets (108) are firmly connected to the two lifting steel beams (111) respectively, and the two transverse fixing rods (109) are fixed to the sides of the two lifting brackets (108) to connect the two lifting brackets (108) into a whole; the lifting steel beam (111) is a component connecting the steel platform system and the lifting system, and the lifting system drives the entire steel platform system to be lifted as a whole by lifting the lifting steel beam (111); the steel platform system is composed of a top platform, an internal hanging scaffolding, and an external hanging scaffolding; The bottom support system is installed on the bottom platform of the internal scaffolding of the steel platform system, and plays a role in supporting and fixing the upper steel platform system during the core tube structure construction stage.

2. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: An oil collecting groove (113) is reserved at the upper end of the rotating column support (102), and an oil collecting box (112) is suspended at the side end thereof. The oil collecting groove (113) is reserved with an outflow port, and the lubricating oil in the groove can flow into the oil collecting box (112).

3. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: The lower part of the lifting wheel (103) is provided with a concave annular lifting groove for lifting the front lifting wheel lifting shoe (104) and the rear lifting wheel lifting shoe (105).

4. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: The motor (106) is fixed to the side of the front lifting wheel lifting boot (104) and the rear lifting wheel lifting boot (105). The four motors (106) are symmetrically arranged. The motor gear (107) installed on the transmission shaft of each motor (106) is tightly engaged with the teeth on the outer side of the lifting wheel (103). The coordinated rotation of the four motors (106) can drive the rotation of the lifting wheel (103). The number of teeth of the motor gear (107) is less than the number of teeth of the lifting wheel (103).

5. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: The bottom support system is composed of a supporting corbel (401), a corbel fixing boot (402), a corbel actuator (403), a top wall roller (404), a top wall roller spring (405), and a top wall roller fixing seat (406); the supporting corbel (401) is fixed with its degrees of freedom in two directions by means of the corbel fixing boot (402), the corbel fixing boot (402) is firmly fixed on the bottom platform beam (207) of the steel platform system, and the supporting corbel (401) extends into the corbel bearing pin housing (308), thereby securing the entire steel platform system. The gravity load is transferred to the core tube structure; the top wall roller (404) is a horizontally placed steel roller, the rear end of which is pulled by a top wall roller spring (405) and a top wall roller fixing seat (406); the top wall roller fixing seat (406) is firmly fixed on the bottom platform of the internal scaffolding; the top wall roller (404) can roll up and down along the inner wall of the core tube and has a certain degree of telescopic freedom, playing an auxiliary positioning role in the overall lifting process of the steel platform system, so as to prevent the internal scaffolding from colliding or scratching the inner wall of the core tube when the steel platform system is tilted and lifted.

6. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: The steel platform system is composed of a top platform, an internal scaffolding, and an external scaffolding; the top platform is located at the top of the steel platform system, and is composed of a top platform beam (201), a top platform panel (202), and a top platform protective panel (213); the top platform panel (202) is laid on the top platform beam (201) to form a plane that is convenient for personnel to walk and work, and the top platform protective panel (213) is vertically arranged around the top platform; the internal scaffolding is a frame structure with multiple operating layers , located inside the core tube of the super high-rise building; the external scaffolding is located outside the core tube structure, hung below the top platform beam (201), and consists of an external scaffolding hanger (209) and an external scaffolding operating layer structural beam (210); the external scaffolding hanger (209) is a vertical steel rod, the upper end of which is connected and fixed to the lower end of the top platform beam (201), and the multi-layer external scaffolding operating layer structural beam (210) is fixedly connected to the middle and bottom of the external scaffolding hanger (209), and the external scaffolding operating layer panel (211) is laid on it.

7. The electrically controlled rotary steel platform integral lifting device according to claim 1 is characterized in that: During the overall lifting stage of the steel platform, the gravity load of the entire steel platform system is borne entirely by the rotating lifting system. Multiple rotating lifting systems work in parallel and simultaneously. The number of rotating lifting systems is set according to the design requirements. A set of electric control systems coordinately controls the forward rotation of each rotating lifting wheel (103), so that the overall lifting of the steel platform system can be continuously and smoothly realized. After the overall lifting of the steel platform system is in place, the shelving bracket (401) is extended into the bracket bearing pin housing (308), and the gravity load of the entire steel platform system is borne entirely by the bottom support system. The electric control system coordinates the reverse rotation of each rotating lifting wheel (103), so that the lifting of the rotating lifting column (101) can be continuously and smoothly realized.

8. A method for constructing a core tube structure of a super high-rise building using the electric-controlled rotary steel platform integral lifting device according to any one of claims 1 to 7, characterized in that: The steps include: Step 1: Complete the combined installation of the rotation system, steel platform system, and bottom support system according to the design requirements. At this time, the bracket (401) is located in the bracket bearing pin shell (308) on the inner wall of the core tube section n+1 standard layer (301), and the gravity load of the entire steel platform system is borne entirely by the bottom support system; the lifting steel template (307) is fixed on the core tube section n+3 standard layer (303), and the core tube section n+3 standard layer (303) has sufficient strength to carry out the overall lifting operation of the steel platform; Step 2, preparation for lifting: firmly fix the lifting column support (102) to the upper end of the standard layer (303) of the n+3th section of the core tube; turn on the electric control system of the lifting system, control the motor (106) to rotate, so that the lifting wheel (103) starts to rotate in the forward direction, driving the entire steel platform system to lift a small height. At this time, the gravity load of the entire steel platform system is borne entirely by the lifting system, and at the same time, the contact between the shelving corbel (401) and the corbel load-bearing pin housing (308) on the inner wall of the standard layer (301) of the n+1th section of the core tube is loosened, and the corbel actuator (403) is controlled to retract the shelving corbel (401); Step 3: Overall lifting: operate the electric control system to control the motor (106) to rotate, so that the lifting wheel (103) starts to rotate forward, driving the entire steel platform system to continuously lift the height of one standard floor; operate the electric control system to control the motor (106) to stop rotating, and complete the overall lifting of the steel platform by one standard floor; at this time, the shelving bracket (401) is slightly higher than the bracket bearing pin housing (308) on the inner wall of the core tube at the standard floor (302) of the n+2th section; Step 4, bottom fixing: control the corbel actuator (403) to extend the resting corbel (401) into the corbel bearing pin housing (308) on the inner wall of the standard layer (302) of the n+2 section of the core tube; operate the electric control system to control the motor (106) to drive the lifting wheel (103) to rotate in the opposite direction, so that the entire steel platform system is lowered by a small height as a whole, and then the resting corbel (401) and the corbel bearing pin housing (308) on the inner wall of the standard layer (302) of the n+2 section of the core tube are in contact. At this time, the gravity load of the entire steel platform system is completely The force is borne by the bottom support system and transferred to the standard floor (302) of the n+2 section of the core tube; the connection between the rotating column support (102) and the upper end of the standard floor (303) of the n+3 section of the core tube is loosened to disconnect the two; the electric control system is operated to control the motor (106) to drive the rotating wheel (103) to continue to rotate in the opposite direction, so as to realize the overall lifting of the rotating column (101) and the rotating column support (102), and the lifting height is the height of a standard floor, so as to leave space for the structural construction of the standard floor (304) of the n+4 section of the core tube; the electric control system of the rotating system is closed; Step 5, structural construction: tying the steel structure of the core tube section n+4 standard layer (304) according to the design requirements; loosening the lifting steel formwork (307) fixed on the core tube section n+3 standard layer (303), and lifting the lifting steel formwork (307) as a whole to the designed position of the core tube section n+4 standard layer (304); installing and fixing the bracket bearing pin shell (308) at the designed position of the inner wall of the core tube section n+4 standard layer (304); using a high-pressure concrete pump to pump concrete slurry to the core tube section n+4 standard layer (304), completing the vibrating and pouring operation of the reinforced concrete structure of the core tube section n+4 standard layer (304); Step 6: Prepare for the next lift: Maintain the cast-in-place concrete (305) for a period of time according to the design requirements to make it have sufficient strength and prepare for the next level of overall lifting of the steel platform.

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