CN110656766A - Electric control rotary lifting type steel platform integral lifting device and construction method thereof - Google Patents
Electric control rotary lifting type steel platform integral lifting device and construction method thereof Download PDFInfo
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- CN110656766A CN110656766A CN201911062104.4A CN201911062104A CN110656766A CN 110656766 A CN110656766 A CN 110656766A CN 201911062104 A CN201911062104 A CN 201911062104A CN 110656766 A CN110656766 A CN 110656766A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
- E04G11/24—Construction of lifting jacks or climbing rods for sliding forms
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Abstract
The invention discloses an electric control rotary lifting type steel platform integral lifting device and a construction method thereof, belongs to the technical field of super high-rise building construction, and is used for solving the problems of large self weight, discontinuous lifting and manual assistance in the lifting process of an integral steel platform. The device consists of a rotary lifting system, a steel platform system and a bottom support system. Firstly, completing the combined installation of a rotary lifting system, a steel platform system and a bottom support system; secondly, starting a motor to enable the rotary lifting wheel to start to rotate positively, and enabling the gravity load of the whole steel platform system to be borne by the rotary lifting system to prepare for lifting; then, operating the motor to complete the integral lifting of one standard layer of one steel platform system; then, closing the electric control system of the rotary lifting system, so that the gravity load of the whole steel platform system is completely borne by the bottom support system; then, completing the construction of a reinforced concrete structure of a standard layer; finally, the next standard layer lifting is carried out.
Description
Technical Field
The invention relates to an electric control rotary lifting type steel platform integral lifting device and a construction method thereof, belonging to the technical field of super high-rise building construction.
Background
The construction of the super high-rise building in China mainly adopts two technical systems, namely an integral steel platform system and a hydraulic creeping formwork system, wherein the integral steel platform is a super high-rise building construction technical system generally accepted by the building engineering field in China, and is fully practiced in major projects such as the eastern Mingzhu television station, Shanghai Jinmao building, Global finance center and Shanghai center, and a relatively complete technical system is formed, and the integral steel platform system is widely applied to the super high-rise building construction engineering in China.
At present, the integral steel platform mainly adopts a method of a hydraulic actuating oil cylinder and a climbing column to realize the integral lifting method of the steel platform, heavy-load equipment such as a hydraulic oil source and the like which are lifted together with the steel platform are required to be arranged on the integral steel platform by adopting the hydraulic actuating oil cylinder, so that the integral weight of the steel platform is increased, and other equipment such as the hydraulic oil source and the like are required to be additionally lifted while the body structure of the steel platform is lifted when the steel platform is lifted. Because the height of super high-rise building standard layer construction is generally about 4m, so big stroke can not be reached to general oil cylinder actuator, the mode that currently generally adopts oil cylinder actuator cooperation lattice column needs to carry out cascaded promotion, and the lifting height of each ladder is about 0.2m to this discontinuous whole promotion that realizes the steel platform. The cooperative control requirement of the lifting device by the lifting method is very strict, and if the lifting device is not strictly synchronized, the differential deformation and the secondary stress of the structural beam of the steel platform can be caused, so that the risk of influencing the safety of the steel platform is generated. In addition, the mode of cascaded promotion steel platform can produce and pause and hinder the vibration, is unfavorable for the whole safety of steel platform structure. After the steel platform is lifted, the lifting of the climbing column needs to be finished, and the lifting device adopting a hydraulic oil cylinder actuator is used for lifting, so that manual auxiliary operation is needed when lifting operation is performed. In addition, as the hydraulic oil source power system is adopted, and the lifted object also comprises the hydraulic oil source system, more energy is consumed in the process of lifting the whole steel platform along the climbing column.
Therefore, an efficient and environment-friendly integral steel platform lifting technology is urgently needed to perfect the existing integral steel platform construction technical system of the super high-rise building.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information is prior art that is known to a person skilled in the art.
Disclosure of Invention
The invention aims to solve the problems of large self weight of lifting equipment, discontinuous lifting, manual assistance and the like in the lifting process of an integral steel platform, overcome the defects of the prior art and provide an electric control rotary lifting type steel platform integral lifting device and a construction method thereof. In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention relates to an electric control rotary lifting type steel platform integral lifting device, which is used for the construction of a core tube structure of a super high-rise building and comprises a rotary lifting system, a steel platform system and a bottom supporting system;
the rotary lifting system consists of a rotary lifting column, a rotary lifting column support, a rotary lifting wheel, a front rotary lifting wheel lifting shoe, a rear rotary lifting wheel lifting shoe, a motor gear, a lifting bracket and a transverse fixing rod; the rotary lifting column is a steel hollow cylinder, and the outer side wall of the rotary lifting column is provided with a thread which continuously rotates and rises; the rotary lifting column support is positioned below the rotary lifting column and is fixed at the upper end of the poured core tube structure through a fixing screw hole at the lower end; the rotary lifting wheel is a steel hollow circular wheel-shaped member with a symmetrical center, the outer side of the rotary lifting wheel is provided with a tooth, the center of the rotary lifting wheel is a cylindrical threaded hole, and threads of the cylindrical threaded hole and threads of the rotary lifting column can be tightly meshed; the front rotary lifting wheel lifting shoe and the rear rotary lifting wheel lifting shoe are semi-cylindrical steel components with fixed side wings and the same specification, the front rotary lifting wheel lifting shoe and the rear rotary lifting wheel lifting shoe are connected into a firm cylindrical structure through bolts, the top parts of the inner sides of the front rotary lifting wheel lifting shoe and the rear rotary lifting shoe are provided with closed annular lifting buckles, the lifting buckles can be tightly embedded into lifting grooves at the lower part of the rotary lifting wheel, the rotary lifting wheel drives the front rotary lifting wheel lifting shoe and the rear rotary lifting wheel lifting shoe to move up and down together under the driving of a motor, and meanwhile, the rotary movement of the rotary lifting wheel cannot drive the front rotary lifting shoe and the rear rotary lifting shoe to rotate together; the lifting supports are steel vertical members, the upper ends of the two lifting supports are respectively and firmly connected with the front lifting wheel lifting shoe and the rear lifting wheel lifting shoe, the lower ends of the two lifting supports are respectively and firmly connected with the two lifting steel beams, and the two transverse fixing rods are fixed on the side surfaces of the two lifting supports to connect the two lifting supports into a whole; the lifting steel beam is a component for connecting the steel platform system and the lifting system, and the lifting system drives the whole steel platform system to be integrally lifted by lifting the lifting steel beam; the steel platform system consists of a top platform, an internal hanging scaffold and an external hanging scaffold;
the bottom support system is arranged on a bottom platform of an internal scaffold of the steel platform system and plays a role in supporting and fixing the upper steel platform system in the core tube structure construction stage.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the electric control rotary lifting type steel platform integral lifting device is light in self weight and more environment-friendly. Because the dead weight of electrical control equipment is lighter than hydraulic pressure actuating cylinder and hydraulic pressure servo oil source far away, can reduce the energy consumption of lifting operation, electrical control equipment occupation space is less in addition, provides bigger operating space for whole steel platform.
(2) The electric control rotary lifting type steel platform integral lifting device is low in power and can provide continuous lifting capacity. Because of the amplification effect of the motor-rotary lifting wheel gear and the rotary lifting wheel-rotary lifting column thread, a plurality of motors are simultaneously equipped, each motor only needs to have smaller power to provide enough torque for driving the rotary lifting wheel to rotate, so that the integral lifting of the steel platform is realized, and the power supply requirement of a construction site is reduced; because the rotation output by the motor is continuous, the rotation of the rotary lift wheel and the integral lifting of the steel platform are also continuous, thereby avoiding the pause and the vibration of the traditional lifting method and being beneficial to the safety of the structure of the steel platform.
(3) The construction method of the electric control rotary lifting type steel platform integral lifting device can accurately control the lifting state without manual assistance. The lifting speed of the rotary lifting system directly depends on the rotating speed of the motor, and the rotating speed of the motor can be accurately controlled through the electric control system, so that all the rotary lifting systems are lifted at the same speed, and adverse conditions caused by the inclination of a steel platform and differential lifting are avoided; the whole lifting mode of the steel platform and the lifting mode of the rotary lifting column can be switched only by switching the rotating direction of the motor, manual assistance is not needed, and the automation rate of construction equipment is improved.
Preferably, the oil collecting groove is reserved at the upper end of the spin-up column support, the oil collecting tank is hung at the side end of the spin-up column support, the oil collecting groove is reserved with an outflow hole, and lubricating oil in the oil collecting groove can flow into the oil collecting tank.
Preferably, the lower part of the rotary lifting wheel is provided with an inwards concave annular lifting groove for lifting the front rotary lifting wheel lifting shoe and the rear rotary lifting wheel lifting shoe.
Preferably, the motors are fixed on the side surfaces of the front rotary lifting wheel lifting shoe and the rear rotary lifting wheel lifting shoe, the four motors are symmetrically arranged, a motor gear mounted on a transmission shaft of each motor is tightly meshed with a meshing tooth on the outer side of the rotary lifting wheel, the four motors cooperatively rotate to drive the rotary lifting wheel to rotate, and the number of teeth of the motor gears is less than that of the rotary lifting wheel.
Preferably, the bottom support system consists of a placing bracket, a bracket fixing shoe, a bracket actuator, a top wall roller spring and a top wall roller fixing seat; the placing bracket is fixed with the freedom degrees in two directions through the bracket fixing boots, the bracket fixing boots are firmly fixed on the bottom platform beam of the steel platform system, and the placing bracket extends into the bracket bearing pin shell, so that the gravity load of the whole steel platform system is transferred to the core cylinder structure; the top wall gyro wheel is horizontal steel gyro wheel, and its rear end is pull by top wall gyro wheel spring and top wall gyro wheel fixing base, and top wall gyro wheel fixing base firmly fixes on inside scaffold frame bottom platform, and the top wall gyro wheel can roll from top to bottom along a core section of thick bamboo inner wall to there is certain flexible degree of freedom, plays assistance-localization real-time effect at the whole promotion in-process of steel platform system, in case the steel platform system is when taking place the slope to promote, inside scaffold frame takes place the striking with a core section of thick bamboo inner wall, cuts to pieces and rubs.
Preferably, the steel platform system consists of a top platform, an internal hanging scaffold and an external hanging scaffold; the top platform is positioned at the top of the steel platform system and consists of a top platform beam, a top platform panel and a top platform protection coaming; the top platform panel is laid on the top platform beam to form a plane convenient for personnel to walk and construct, and the top platform protective coaming is vertically arranged around the top platform; the internal hanging scaffold is a frame structure containing a plurality of operation layers and is positioned inside the super high-rise building core tube; the external scaffold is positioned outside the core tube structure, is hung below the top-layer platform beam and consists of an external scaffold hanger and an external scaffold operation layer structure beam; the external scaffold hanging frame is a vertical steel rod, the upper end of the external scaffold hanging frame is fixedly connected with the lower end of the top layer platform beam, the multi-layer external scaffold operation layer structure beam is fixedly connected with the middle part and the bottom of the external scaffold hanging frame, and the external scaffold operation layer panel is laid on the external scaffold hanging frame.
Preferably, in the integral lifting stage of the steel platform, the gravity load of the whole steel platform system is borne by all the rotary lifting systems, a plurality of sets of rotary lifting systems are connected in parallel and work simultaneously, the number of the rotary lifting systems is set according to design requirements, and each rotary lifting wheel is controlled to rotate forwards in a unified and cooperative mode by one set of electric control system, so that the integral lifting of the steel platform system can be continuously and stably realized; after the steel platform system is integrally lifted in place, the placed bracket extends into the bracket bearing pin shell, the gravity load of the whole steel platform system is borne by the bottom support system, and the rotary lifting wheels are cooperatively controlled to rotate reversely by the electric control system, so that the lifting of the rotary lifting column can be continuously and stably realized.
The invention also provides a construction method for the core tube structure of the super high-rise building by adopting the electric control rotary lifting type steel platform integral lifting device, which comprises the following steps:
the method comprises the following steps that firstly, the combined installation of a rotary lifting system, a steel platform system and a bottom support system is completed according to design requirements, at the moment, a placed bracket is positioned in a bracket bearing pin shell on the inner wall of a standard layer of the n +1 section of a core cylinder, and the gravity load of the whole steel platform system is completely borne by the bottom support system; the lifting steel template is fixed on the n +3 th section of standard layer of the core barrel, and the n +3 th section of standard layer of the core barrel has enough strength, so that the integral lifting operation of the steel platform can be carried out;
step two, lifting preparation: firmly fixing the spin-on post support at the upper end of the n +3 th section of the standard layer of the core barrel; starting an electric control system of the rotary lifting system, controlling a motor to rotate, enabling a rotary lifting wheel to start to rotate positively, driving the whole steel platform system to lift to a smaller height, enabling the gravity load of the whole steel platform system to be borne by the rotary lifting system, meanwhile, enabling the placed bracket and a bracket bearing pin shell on the inner wall of the n +1 th section of the standard layer of the core cylinder to be in loose contact, and controlling a bracket actuator to retract to the placed bracket;
step three, integrally lifting: operating the electric control system to control the motor to rotate, so that the rotary lifting wheel starts to rotate positively to drive the whole steel platform system to continuously lift the height of a standard layer; the electric control system is operated to control the motor to stop rotating, and the steel platform is integrally lifted by one standard layer; at the moment, the bracket bearing pin shell is placed slightly higher than the bracket bearing pin shell on the inner wall of the n +2 th section standard layer of the core barrel;
step four, bottom fixing: controlling the bracket actuator to extend out of the bracket bearing pin shell for placing the bracket to extend into the bracket bearing pin shell on the inner wall of the n +2 th section of the standard layer of the core barrel; the electric control system is operated to control the motor to drive the rotary lifting wheel to rotate reversely, so that the whole steel platform system is lowered to a smaller height, the bracket is placed to be in contact with a bracket bearing pin shell on the inner wall of the n +2 th section standard layer of the core barrel, and at the moment, the gravity load of the whole steel platform system is completely born by the bottom support system and is transmitted to the n +2 th section standard layer of the core barrel; loosening the connection between the spin-up column support and the upper end of the n +3 th section of the standard layer of the core barrel to separate the spin-up column support from the core barrel; the electric control system is operated to control the motor to drive the rotary lifting wheel to continuously rotate reversely, so that the integral lifting of the rotary lifting column and the rotary lifting column support is realized, and the lifting height is a standard layer height so as to reserve a space for constructing the n +4 th section of standard layer structure of the core barrel; closing the electric control system of the rotary lifting system;
step five, structural construction: binding a steel bar structure of the n +4 th section of the standard layer of the core barrel according to design requirements; loosening the lifting steel template fixed on the n +3 th section of standard layer of the core barrel, and lifting the lifting steel template to the design position of the n +4 th section of standard layer of the core barrel integrally; mounting and fixing bracket bearing pin shells at the design positions of the inner wall of the n +4 th section of the standard layer of the core barrel; pumping concrete slurry to the n +4 th section of standard layer of the core cylinder by using a high-pressure concrete pump to complete the vibration pouring operation of the reinforced concrete structure of the n +4 th section of standard layer of the core cylinder;
step six, preparing for next lifting: maintaining and maintaining the cast-in-place concrete for a period of time according to design requirements to ensure that the cast-in-place concrete has enough strength and is ready for the whole lifting of the next layer of the steel platform.
Drawings
Fig. 1 is a schematic view of the electric control rotary lifting type steel platform integral lifting device installed on an integral steel platform.
Fig. 2 is a schematic diagram of the electric control rotary lifting type steel platform integral lifting device.
Fig. 3 is a front view of the electric control rotary lifting type steel platform integral lifting device.
Fig. 4 is a top view of the electric control rotary lifting type steel platform integral lifting device.
Fig. 5 is a main component disassembly schematic view of the electric control rotary lifting type steel platform integral lifting device.
Fig. 6 is a cross-sectional view of the electric control lifting type steel platform integral lifting device.
Fig. 7 to 11 are schematic diagrams of a second step to a sixth step of the construction method of the electric control rotary lifting type steel platform integral lifting device.
Fig. 12 is a schematic view of the integral packaging of the integral steel platform using the electric control rotary lifting type steel platform integral lifting device of the invention.
Fig. 13 is a schematic view of a bracket for placing the electric control rotary lifting type steel platform integral lifting device.
Fig. 14 is a schematic view of a top wall roller of the electric control rotary lifting type steel platform integral lifting device.
In the figure:
101-rotary lifting column, 102-rotary lifting column support, 103-rotary lifting wheel, 104-front rotary lifting shoe, 105-rear rotary lifting shoe, 106-motor, 107-motor gear, 108-lifting bracket, 109-transverse fixing rod, 110-fixing bolt, 111-lifting steel beam, 112-oil collecting tank and 113-oil collecting tank;
201-steel platform top platform steel beam, 202-top platform panel, 203-inner scaffold bearing square tube, 204-inner scaffold operation layer structural beam, 205-inner scaffold operation layer panel, 206-inner scaffold construction free ladder, 207-steel platform bottom platform beam, 208-bottom platform panel, 209-outer scaffold hanger, 210-outer scaffold operation layer structural beam, 211-outer scaffold operation layer panel, 212-outer scaffold protective coaming, 213-top platform protective coaming;
301-the n +1 section of standard layer of the core barrel, 302-the n +2 section of standard layer of the core barrel, 303-the n +3 section of standard layer of the core barrel, 304-the n +4 section of standard layer of the core barrel, 305-cast-in-place concrete, 306-a reinforcement cage, 307-a lifting steel template, 308-a bracket bearing pin shell, 309-a built-up core barrel structure;
401-resting corbels, 402-corbel fixing shoes, 403-corbel actuators, 404-top wall rollers, 405-top wall roller springs and 406-top wall roller holders.
Detailed Description
The electric control rotary lifting type steel platform integral lifting device and the construction method thereof provided by the invention are further described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
Example one
Referring to fig. 1 to 14, the electric control lifting type steel platform integral lifting device and the construction method thereof of the present invention are described in detail.
As shown in fig. 1 to 14, the core tube of the present embodiment has a rectangular configuration, and the core tube has four inner tubes, and the layer height of the standard layer of the core tube is 3.9 m; and a plurality of bracket bearing pin housings 308 are arranged at the lower positions of the side wall of the inner cylinder of the n +1 th section of standard layer 301, the n +2 th section of standard layer 302, the n +3 th section of standard layer 303 and the n +4 th section of standard layer 304 of the core cylinder. The bracket bearing pin shell 308 is a groove-shaped prefabricated steel member and is used for extending into the placing bracket 401 in the core tube reinforced concrete pouring stage. The resting corbels 401 transfer the load of the entire steel platform they bear to the corbel load bearing pin housing 308 and thus to the concrete core barrel structure. In the core tube reinforced concrete pouring stage, firstly, reinforcing steel bars 306 are bound according to a design scheme, then, lifting steel templates 307 are erected according to design requirements, then, the cast-in-place concrete 305 is poured and vibrated, the maintenance is carried out for a period of time according to the specification, and after the strength of the cast-in-place concrete 305 is formed, the lifting steel templates 307 can be detached.
The electric control rotary lifting type steel platform integral lifting device in the embodiment comprises nine sets of rotary lifting systems, a steel platform system and a bottom support system, wherein only one steel platform system comprises a top platform, four internal hanging scaffolds, four external hanging scaffolds, the total weight is 300t, the bottom support system comprises 16 sets, and four sets of bottom support systems are arranged on a bottom platform of each internal hanging scaffold.
Each set of rotary lifting system consists of a rotary lifting column 101, a rotary lifting column support 102, a rotary lifting wheel 103, a front rotary lifting wheel lifting shoe 105, a rear rotary lifting wheel lifting shoe 106, four motors 106 and motor gears 107 thereof, two lifting brackets 108 and two transverse fixing rods 109.
The length of the spin-up column 101 is 7.5m, the diameter of the cross section is 30cm, and the inclination of the thread on the outer side wall is 0.1; the rotary lifting column support 102 is a steel columnar member, the length of the rotary lifting column support is not less than 2.5m, the rotary lifting column support is welded below the rotary lifting column 101 and plays a role of supporting and fixing the rotary lifting column 101, a fixing screw hole is formed in the lower end of the rotary lifting column support 102, the rotary lifting column support 102 can be firmly fixed to the upper end of a poured core tube structure through a screw, an oil collecting tank 113 is reserved at the upper end of the rotary lifting column support 102, an oil collecting tank 112 is hung at the side end of the rotary lifting column support, an outflow port is reserved in the oil collecting tank 113, and lubricating oil in the. The rotary lifting wheel 103 is a steel hollow circular wheel-shaped member with symmetrical centers, the outer side of the rotary lifting wheel 103 is provided with a tooth-biting, the center of the rotary lifting wheel 103 is a cylindrical threaded hole, the thread of the cylindrical threaded hole can be tightly meshed with the thread of the rotary lifting column 101, the thread in the rotary lifting wheel 103 can be properly coated with lubricating oil, and the lower part of the rotary lifting wheel 103 is provided with an inward concave annular lifting groove for lifting a front rotary lifting wheel lifting shoe 105 and a rear rotary lifting wheel lifting shoe 106. The front lifting wheel lifting shoe 105 and the rear lifting wheel lifting shoe 106 are half-cylindrical steel members having the same specification and fixed side wings. The fixed side wing of the front lifting wheel lifting shoe 105 is provided with a round hole penetrating through the fixed screw 110, the fixed side wing of the rear lifting wheel lifting shoe 106 is provided with a screw hole for screwing the fixed screw 110, the front lifting wheel lifting shoe 105 and the rear lifting wheel lifting shoe 106 are combined into a firm cylindrical structure by screwing the fixed screw 110, and the lifting buckles at the top of the inner side of the cylinder of the front lifting wheel lifting shoe 105 and the rear lifting wheel lifting shoe 106 are tightly embedded into the lifting grooves at the lower part of the lifting wheel 103. The up-and-down movement of the lifting wheel 103 can drive the front lifting wheel lifting shoe 105 and the rear lifting wheel lifting shoe 106 to move up and down together, and meanwhile, the rotation movement of the lifting wheel 103 cannot drive the front lifting wheel lifting shoe 105 and the rear lifting wheel lifting shoe 106 to rotate together.
Four motors 106 are symmetrically fixed on the side surfaces of the front rotary lifting wheel lifting shoe 105 and the rear rotary lifting wheel lifting shoe 106, the four motors 106 are symmetrically arranged, a motor gear 107 mounted on a transmission shaft of each motor 106 is tightly meshed with a meshing tooth on the outer side of the rotary lifting wheel 103, the four motors 106 cooperatively rotate to drive the rotary lifting wheel 103 to rotate, and the number of teeth of the motor gear 107 is less than that of the rotary lifting wheel 103; the lifting brackets 108 are steel vertical members, the upper ends of the two lifting brackets 108 are respectively and firmly connected with the front lifting wheel lifting shoes 105 and the rear lifting wheel lifting shoes 106, the lower ends of the two lifting brackets 108 are respectively and firmly connected with the two lifting steel beams 111, and the two transverse fixing rods 109 are fixed on the side surfaces of the two lifting brackets 108 to connect the two lifting brackets 108 into a whole. The lifting steel beam 111 is a component for connecting the steel platform system and the lifting system, and the lifting system drives the whole steel platform system to be lifted integrally by lifting the lifting steel beam 111.
The working principle of the rotary lifting system is as follows: the motor 106 drives the motor gear 107 to rotate, the rotary lifting wheel 103 is driven to rotate forwards around the rotary lifting column 101, threads on the inner side of the rotary lifting wheel 103 climb along threads on the outer side of the rotary lifting column 101, the rotary lifting wheel 103 is driven to ascend upwards, the rotary lifting wheel 103 drives the front rotary lifting wheel lifting shoe 105 and the rear rotary lifting wheel lifting shoe 106 to lift synchronously, the front rotary lifting wheel lifting shoe 105 and the rear rotary lifting wheel lifting shoe 106 are lifted and pulled, the lifting support 108 and the lifting steel beam 111 are lifted, and the lifting steel beam 111 further lifts the whole steel platform system. And a plurality of sets of rotary lifting systems are arranged on the steel platform system in parallel and are coordinated and controlled by a unified electric control system to work together, so that the integral lifting of the steel platform system is synchronously realized.
The steel platform system is a large-scale integral frame construction scaffold system for carrying out concrete pouring construction of a core tube structure of a super high-rise building, and consists of a top platform, an internal hanging scaffold and an external hanging scaffold. The top platform is positioned at the top of the steel platform system and consists of a top platform beam 201, a top platform panel 202 and a top platform protection coaming 213; the top platform beam 201 is a high-strength H-shaped steel beam and is a main bearing component of a steel platform system, the top platform beams 201 are connected with one another to form a platform with a size slightly larger than the section of a 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 convenient for personnel to walk and construct, and the top platform protective coaming 213 is erected around the top platform to play a role in protection and prevent workers from falling down.
The inner hanging scaffold is a frame structure containing a plurality of operation layers and is positioned inside the core tube of the super high-rise building, and the main structure of the inner hanging scaffold is composed of an inner hanging scaffold bearing square tube 203, an inner hanging scaffold operation layer structural beam 204 and a bottom layer platform beam 207; the inner scaffold bearing square tube 203 is a vertical steel member, the upper end of the inner scaffold bearing square tube 203 is firmly connected with the lower end of the top-layer platform beam 201, the lower part of the inner scaffold bearing square tube 203 is firmly connected with the bottom-layer platform beam 207, and the middle part of the inner scaffold bearing square tube 203 is firmly connected with a plurality of groups of inner scaffold operation layer structural beams 204; the bottom platform beams 207 are H-shaped steel beams with higher strength, a plurality of bottom platform beams 207 are mutually connected to form a platform with the size slightly smaller than that of the inner cylinder of the core cylinder, and bottom platform panels 208 are laid on the bottom platform beams 207 to form a platform for personnel to walk and construction operation; the structural beams 204 of the inner hitching hand operation layer are mutually connected and fixed to form a horizontal layer, the panel 205 of the inner hitching hand operation layer is laid on the structural beams 204 of the inner hitching hand operation layer to form an operation layer for personnel to walk and construct, and the inner hitching hand construction portable ladder 206 is erected between the operation layers, between the operation layer and the top platform, and between the operation layer and the bottom layer, so that the personnel can get on and off conveniently.
The external scaffold is positioned outside the core tube structure, is hung below the top-layer platform beam 201 and consists of an external scaffold hanger 209 and an external scaffold operation layer structure beam 210; the external scaffold hanging bracket 209 is a vertical steel rod, the upper end of the external scaffold hanging bracket is fixedly connected with the lower end of the top-layer platform beam 201, the multiple layers of external scaffold operating layer structure beams 210 are fixedly connected with the middle part and the bottom of the external scaffold hanging bracket 209, an external scaffold operating layer panel 211 is paved on the external scaffold hanging bracket to form multiple layers of operating layers for personnel walking and construction operation, and an external scaffold protective coaming 212 is fixed on the outer side of the whole external scaffold to play a role in protection and prevent accidental falling danger; the number of the internal scaffold and the external scaffold is determined according to the section form of the core tube structure of the super high-rise building.
The bottom support system is arranged on a bottom platform of an internal scaffold of the steel platform system, plays a role in supporting and fixing the upper steel platform system in the core tube structure construction stage, and consists of a shelving bracket 401, a bracket fixing shoe 402, a bracket actuator 403, a top wall roller 404, a top wall roller spring 405 and a top wall roller fixing seat 406. The placing bracket 401 is a telescopic steel member, the telescopic motion of the placing bracket is controlled by a bracket actuator 403, the freedom degrees of the placing bracket in two directions are fixed by a bracket fixing shoe 402, the bracket fixing shoe 402 is firmly fixed on the bottom platform beam 207 of the steel platform system, and the placing bracket 401 extends into the bracket bearing pin shell 308, so that the gravity load of the whole steel platform system is transferred to the core cylinder structure; the top wall roller 404 is a transverse steel roller, the rear end of the top wall roller 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 scaffold, the top wall roller 404 can roll up and down along the inner wall of the core barrel and has certain telescopic freedom, an auxiliary positioning effect is achieved in the whole lifting process of the steel platform system, and the internal scaffold is prevented from being impacted and scratched with the inner wall of the core barrel when the steel platform system is lifted obliquely.
In the integral lifting stage of the steel platform, the gravity load of the whole steel platform system is borne by all the rotary lifting systems, a plurality of sets of rotary lifting systems are connected in parallel and work simultaneously, the number of the rotary lifting systems is set according to design requirements, and the rotary lifting wheels 103 are uniformly and cooperatively controlled to rotate forwards by one set of electric control system, so that the integral lifting of the steel platform system can be continuously and stably realized; after the steel platform system is integrally lifted in place, the placed bracket 401 extends into the bracket bearing pin shell 308, the gravity load of the whole steel platform system is borne by the bottom support system, and at the moment, the electric control system cooperatively controls each rotary lifting wheel 103 to rotate reversely, so that the lifting of the rotary lifting column 101 can be continuously and stably realized.
Example two
With continuing reference to fig. 1 to 14, the present embodiment provides a construction method for constructing a core tube structure of a super high-rise building, which mainly includes the following steps:
the method comprises the following steps: the combined installation of the rotary lifting system, the steel platform system and the bottom support system is completed according to the design requirements, and all conditions for developing the construction operation of the super high-rise core tube structure are met; at the moment, the placing bracket 401 is positioned in the bracket bearing pin shell 308 on the inner wall of the n +1 th section of the standard layer 301 of the core barrel; the lifting steel form 307 is fixed on the n +3 th section of the standard layer 303 of the core tube, and the n +3 th section of the standard layer 303 of the core tube has enough strength.
Step two: and (5) lifting preparation. The spin-on post support 102 is firmly fixed at the upper end of the n +3 th section of the standard layer 303 of the core barrel; and (3) starting an electric control system, controlling a motor 106 to rotate, enabling a rotary lifting wheel 103 to start to rotate in a forward direction, driving the whole steel platform system to lift by 2cm, loosening the contact between the bracket 401 and the bracket bearing pin shell 308 on the inner wall of the n +1 th section standard layer 301 of the core barrel, and controlling the bracket actuator 403 to retract to the bracket 401.
Step three: and (5) overall lifting. Operating the electric control system to control the motor 106 to rotate, so that the rotary lifting wheel 103 starts to rotate positively to drive the whole steel platform system to continuously lift the height of a standard layer; the electric control system is operated to control the motor 106 to stop rotating, and the steel platform is integrally lifted by one standard layer; at this point, the resting corbels 401 should be slightly higher than the corbel load pin housings 308 on the inner wall of the n +2 th standard layer 302 of the core barrel.
Step four: the bottom is fixed. Controlling a bracket actuator 403 to extend out of the placing bracket 401 and extend into a bracket bearing pin shell 308 on the inner wall of the n +2 th section standard layer 302 of the core barrel; the electric control system is operated to control the motor 106 to drive the rotary lifting wheel 103 to rotate reversely, so that the whole steel platform system descends to a smaller height, the placing bracket 401 is in contact with the bracket bearing pin shell 308 on the inner wall of the n +2 th section standard layer 302 of the core barrel, and at the moment, the gravity load of the whole steel platform system is borne by the bottom support system and is transferred to the n +2 th section standard layer 302 of the core barrel; loosening the connection between the spin-on column support 102 and the upper end of the n +3 th section of the standard layer 303 of the core barrel to separate the two; the electric control system is operated to control the motor 106 to drive the rotary lifting wheel 103 to continuously rotate reversely, so that the integral lifting of the rotary lifting column 101 and the rotary lifting column support 102 is realized, the lifting height is a standard layer height, and a construction space of the n +4 th section of the core barrel of the standard layer 304 structure is reserved; and closing the electric control system of the rotary lifting system.
Step five: and (5) constructing the structure. Binding the steel bar structure of the n +4 th section of the standard layer 304 of the core barrel according to the design requirement; loosening the lifting steel template 307 fixed on the n +3 th section of standard layer 303 of the core barrel, and lifting the whole lifting steel template 307 to the design position of the n +4 th section of standard layer 304 of the core barrel by adopting a method such as a hand-cranking gourd; a bracket bearing pin shell 308 is fixedly arranged at the design position of the inner wall of the n +4 th section of the standard layer 304 of the core barrel; and pumping concrete slurry to the n +4 th section of standard layer 304 of the core barrel by means of a high-pressure concrete pump and the like to complete the vibration pouring operation of the reinforced concrete structure of the n +4 th section of standard layer 304 of the core barrel. Step six: and preparing for next lifting. The in-situ concrete 305 is maintained for five days as designed to have sufficient strength to prepare for the next layer of the steel platform to be lifted as a whole.
The above description is only illustrative of the preferred embodiments of the present invention and does not limit the scope of the present invention in any way. Any changes and modifications of the above disclosure by those skilled in the art are within the scope of the appended claims.
Claims (8)
1. The utility model provides an automatically controlled formula steel platform whole hoisting device that rises soon for the construction of super high-rise building core section of thick bamboo structure, its characterized in that: comprises a rotary lifting system, a steel platform system and a bottom support system;
the rotary lifting system consists of a rotary lifting column (101), a rotary lifting column support (102), a rotary lifting wheel (103), a front rotary lifting wheel lifting shoe (105), a rear rotary lifting wheel lifting shoe (106), a motor gear (107), a lifting support (108) and a transverse fixing rod (109); the spiral lifting column (101) is a steel hollow cylinder, and the outer side wall of the spiral lifting column (101) is provided with a thread which continuously rotates and rises; the rotary lifting column support (102) is positioned below the rotary lifting column (101) and is fixed at the upper end of the poured core tube structure through a fixed screw hole at the lower end; the rotary lifting wheel (103) is a steel hollow circular wheel-shaped member with a symmetrical center, the outer side of the rotary lifting wheel (103) is provided with a tooth, the center of the rotary lifting wheel (103) is a cylindrical threaded hole, and the thread of the cylindrical threaded hole can be tightly meshed with the thread of the rotary lifting column (101); the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting wheel lifting shoe (106) are semi-cylindrical steel components with fixed side wings and are in the same specification, the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting wheel lifting shoe (106) are connected into a firm cylindrical structure through bolts, closed annular lifting buckles are arranged at the tops of the inner sides of the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting wheel lifting shoe (106), the lifting buckles can be tightly embedded into lifting grooves at the lower part of the rotary lifting wheel (103), the rotary lifting wheel (103) drives the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting wheel lifting shoe (106) to move up and down together under the driving of a motor, and meanwhile, the rotary movement of the rotary lifting wheel (103) cannot drive the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting shoe (106) to rotate together; the lifting supports (108) are steel vertical members, the upper ends of the two lifting supports (108) are respectively and firmly connected with a front lifting wheel lifting shoe (105) and a rear lifting wheel lifting shoe (106), the lower ends of the two lifting supports (108) are respectively and firmly connected with two lifting steel beams (111), two transverse fixing rods (109) are fixed on the side surfaces of the two lifting supports (108), and the two lifting supports (108) are connected into a whole; the lifting steel beam (111) is a component for connecting the steel platform system and a lifting system, and the lifting system drives the whole steel platform system to be integrally lifted by lifting the lifting steel beam (111); the steel platform system consists of a top platform, an internal hanging scaffold and an external hanging scaffold;
the bottom support system is arranged on a bottom platform of an internal scaffold of the steel platform system and plays a role in supporting and fixing the upper steel platform system in the core tube structure construction stage.
2. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: an oil collecting groove (113) is reserved at the upper end of the rotary lifting column support (102), an oil collecting tank (112) is hung at the side end of the rotary lifting column support, an outflow port is reserved in the oil collecting groove (113), and lubricating oil in the groove can flow into the oil collecting tank (112).
3. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: the lower part of the rotary lifting wheel (103) is provided with an inwards concave annular lifting groove for lifting a front rotary lifting wheel lifting shoe (105) and a rear rotary lifting wheel lifting shoe (106).
4. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: the motor (106) is fixed on the side surfaces of the front rotary lifting wheel lifting shoe (105) and the rear rotary lifting wheel lifting shoe (106), the four motors (106) are symmetrically arranged, a motor gear (107) arranged on a transmission shaft of each motor (106) is tightly meshed with a meshing tooth on the outer side of the rotary lifting wheel (103), the four motors (106) cooperatively rotate to drive the rotary lifting wheel (103) to rotate, and the number of teeth of the motor gear (107) is smaller than that of the rotary lifting wheel (103).
5. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: the bottom support system consists of a placing bracket (401), a bracket fixing shoe (402), a bracket actuator (403), a top wall roller (404), a top wall roller spring (405) and a top wall roller fixing seat (406); the placing bracket (401) is fixed with the freedom degrees in two directions through a bracket fixing boot (402), the bracket fixing boot (402) is firmly fixed on a bottom layer platform beam (207) of the steel platform system, and the placing bracket (401) extends into a bracket bearing pin shell (308), so that the gravity load of the whole steel platform system is transferred to the core cylinder structure; top wall gyro wheel (404) are horizontal steel gyro wheel, and its rear end is pull by top wall gyro wheel spring (405) and top wall gyro wheel fixing base (406), and top wall gyro wheel fixing base (406) firmly fixes on inside scaffold bottom platform, and top wall gyro wheel (404) can roll from top to bottom along a core section of thick bamboo inner wall to have certain flexible degree of freedom, play the assistance-localization real-time effect at the whole lift-up in-process of steel platform system, in case when the steel platform system takes place to incline to lift, inside scaffold and core section of thick bamboo inner wall take place to strike, cut the piece and rub.
6. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: the steel platform system consists of a top platform, an internal hanging scaffold and an external hanging scaffold; the top platform is positioned at the top of the steel platform system and consists of a top platform beam (201), a top platform panel (202) and a top platform protection coaming (213); the top platform panel (202) is laid on the top platform beam (201) to form a plane convenient for personnel to walk and construct, and the top platform protection coaming (213) is vertically arranged around the top platform; the internal hanging scaffold is a frame structure containing a plurality of operation layers and is positioned inside the super high-rise building core tube; the external scaffold is positioned outside the core tube structure, hung below the top-layer platform beam (201), and composed of an external scaffold hanger (209) and an external scaffold operation layer structure beam (210); the external scaffold hanging bracket (209) is a vertical steel rod, the upper end of the external scaffold hanging bracket is fixedly connected with the lower end of the top platform beam (201), the multi-layer external scaffold operation layer structure beam (210) is fixedly connected with the middle part and the bottom of the external scaffold hanging bracket (209), and the external scaffold operation layer panel (211) is paved.
7. The electrically controlled lifting type steel platform integral lifting device according to claim 1, characterized in that: in the integral lifting stage of the steel platform, the gravity load of the whole steel platform system is borne by all the rotary lifting systems, a plurality of sets of rotary lifting systems are connected in parallel and work simultaneously, the number of the rotary lifting systems is set according to design requirements, and each rotary lifting wheel (103) is uniformly and cooperatively controlled by one set of electric control system to rotate forwards, so that the integral lifting of the steel platform system can be continuously and stably realized; after the steel platform system is integrally lifted in place, the placed bracket (401) extends into the bracket bearing pin shell (308), the gravity load of the whole steel platform system is borne by the bottom support system, the electric control system cooperatively controls each rotary lifting wheel (103) to rotate reversely, and the lifting of the rotary lifting column (101) can be continuously and stably realized.
8. The construction method of the core tube structure of the super high-rise building by adopting the electric control rotary lifting type steel platform integral lifting device is characterized in that: the method comprises the following steps:
step one, completing the combined installation of a rotary lifting system, a steel platform system and a bottom support system according to design requirements, wherein at the moment, a placing bracket (401) is positioned in a bracket bearing pin shell (308) on the inner wall of the n +1 th section of standard layer (301) of the core barrel, and the gravity load of the whole steel platform system is completely borne by the bottom support system; the lifting steel template (307) is fixed on the n +3 th section of standard layer (303) of the core barrel, and the n +3 th section of standard layer (303) of the core barrel has enough strength, so that the integral lifting operation of the steel platform can be carried out;
step two, lifting preparation: firmly fixing the spin-on post support (102) on the upper end of the n +3 th section of the standard layer (303) of the core barrel; starting an electric control system of the rotary lifting system, controlling a motor (106) to rotate, enabling a rotary lifting wheel (103) to start to rotate in the forward direction, driving the whole steel platform system to lift to a smaller height, enabling the gravity load of the whole steel platform system to be borne by the rotary lifting system, meanwhile, enabling the contact between the placed bracket (401) and the bracket bearing pin shell (308) on the inner wall of the n +1 th section standard layer (301) of the core barrel to be loosened, and controlling a bracket actuator (403) to retract to the placed bracket (401);
step three, integrally lifting: operating the electric control system to control the motor (106) to rotate, so that the rotary lifting wheel (103) starts to rotate in the forward direction, and the whole steel platform system is driven to continuously lift the height of a standard layer; operating the electric control system to control the motor (106) to stop rotating so as to finish the integral lifting of the steel platform on a standard layer; at the moment, the bracket (401) is placed to be slightly higher than the bracket bearing pin shell (308) on the inner wall of the n +2 th section of the standard layer (302) of the core barrel;
step four, bottom fixing: controlling a bracket actuator (403) to extend out of the placing bracket (401) and extend into a bracket bearing pin shell (308) on the inner wall of the n +2 th section standard layer (302) of the core barrel; the electric control system is operated to control the motor (106) to drive the rotary lifting wheel (103) to rotate reversely, so that the whole steel platform system descends to a smaller height, the placed bracket (401) is in contact with the bracket bearing pin shell (308) on the inner wall of the n +2 th section standard layer (302) of the core barrel, and at the moment, the gravity load of the whole steel platform system is completely born by the bottom support system and is transferred to the n +2 th section standard layer (302) of the core barrel; loosening the connection between the spin-on column support (102) and the upper end of the n +3 th section of the standard layer (303) of the core barrel to separate the two; the electric control system is operated to control the motor (106) to drive the rotary lifting wheel (103) to continuously rotate reversely, so that the integral lifting of the rotary lifting column (101) and the rotary lifting column support (102) is realized, the lifting height is a standard layer height, and a space for the structural construction of the n +4 th section of the core barrel is reserved; closing the electric control system of the rotary lifting system;
step five, structural construction: binding a steel bar structure of the n +4 th section of standard layer (304) of the core barrel according to design requirements; loosening the lifting steel template (307) fixed on the n +3 th section of standard layer (303) of the core barrel, and lifting the lifting steel template (307) to the design position of the n +4 th section of standard layer (304) of the core barrel integrally;
a bracket bearing pin shell (308) is fixedly arranged at the design position of the inner wall of the n +4 th section standard layer (304) of the core barrel; pumping concrete slurry to the n +4 th section of standard layer (304) of the core barrel by using a high-pressure concrete pump to complete the vibrating and pouring operation of the reinforced concrete structure of the n +4 th section of standard layer (304) of the core barrel;
step six, preparing for next lifting: maintaining the cured cast-in-place concrete (305) for a period of time as designed to provide sufficient strength to prepare the next layer of the steel platform for overall lifting.
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