CN117963677A

CN117963677A - Aerial in-situ underpinning platform structure of super high-rise construction elevator and construction method thereof

Info

Publication number: CN117963677A
Application number: CN202410383774.0A
Authority: CN
Inventors: 徐磊; 陈佳茹; 王丽; 王家生
Original assignee: Shanghai Construction No 1 Group Co Ltd
Current assignee: Shanghai Construction No 1 Group Co Ltd
Priority date: 2024-04-01
Filing date: 2024-04-01
Publication date: 2024-05-03

Abstract

The invention discloses an aerial in-situ underpinning platform structure of an ultra-high-rise construction elevator and a construction method thereof, wherein the platform structure comprises an aerial foundation platform, a standard section stress conversion mechanism, a lower-hanging scaffold platform and a pressure slow-release mechanism; the construction method comprises the steps of arranging an aerial foundation platform on a core tube wall of a construction elevator hole, constructing a standard section stress conversion mechanism and a lower hanging scaffold platform on the aerial foundation platform, constructing a pressure slow-release mechanism on the lower standard section, removing part of the lower standard section after the vertical oil cylinder of the pressure slow-release mechanism applies upward thrust to a foundation beam, retracting the vertical oil cylinder to slowly apply the weight of the rest standard section to the foundation beam of the aerial foundation platform, removing the pressure slow-release mechanism and the rest lower standard section, arranging a third support beam below the upper standard section to convert the weight of the upper standard section to the aerial foundation platform, and removing the lower hanging scaffold platform. The invention can improve the installation efficiency and shorten the construction period.

Description

Aerial in-situ underpinning platform structure of super high-rise construction elevator and construction method thereof

Technical Field

The invention relates to the technical field of constructional engineering, in particular to an air in-situ underpinning platform structure of an elevator for super high-rise construction and a construction method thereof.

Background

In the super high-rise building construction process, the construction elevator is a key vertical transportation device, the construction elevator standard section configuration is required to be installed, the standard section configuration mode is mainly determined by the height of the super high-rise building, when the building height exceeds a certain height such as 450 meters, special reinforcing measures are required to be adopted for the standard section, and the safety and the economical efficiency of the construction elevator can be greatly reduced.

The general construction thought of the super high-rise is that the core tube is advanced, namely the construction progress of the core tube structure is generally advanced before the outer frame structure. Therefore, construction elevators are required to be arranged in both a low area and a high area, the low area mainly serves the outer frame structure, and the high area mainly serves the core tube structure. The construction elevator conversion scheme of the high-rise building is that a construction elevator foundation is firstly installed on a first layer board, when the upper structure is constructed to a certain height and the construction elevator is required to be converted, the construction elevator is firstly removed, then a standard knot is removed, then a new construction elevator foundation is installed in a high-rise core tube, and then the construction elevator is reinstalled. Namely, the high-altitude conversion of the elevator foundation needs to be performed once, and the elevator foundation is converted from the ground foundation to the air foundation. The scheme needs repeated assembly and disassembly of the construction elevator and the standard knot, has complex process and poor economy; and the high-rise construction elevator has longer shutdown time during assembly and disassembly, and has certain influence on the overall construction period.

When the overhead foundation of the construction elevator is installed at high altitude, the conventional scheme is to embed a lifting point in the construction of the upper layer connecting beam of the core tube wall body, and the lifting point is pulled to a preset height position by adopting a hoist, because the distance between the connecting beam lifting point and the bottom is shorter, and the length of the foundation beam is longer, the clamping angle of a steel wire rope at the lifting point exceeds a reasonable range, the lifting point is stressed too much, and the safety of lifting construction cannot be ensured.

Disclosure of Invention

The invention aims to provide an air in-situ underpinning platform structure of an ultra-high-rise construction elevator and a construction method thereof, so as to solve the problems of how to improve the installation efficiency of the air in-situ underpinning platform structure and shorten the construction period.

In order to solve the technical problems, the invention provides an air in-situ underpinning platform structure of an ultra-high-rise construction elevator, which comprises the following components:

The aerial foundation platform comprises a foundation beam with a cross structure, wherein the foundation beam is formed by two first directional steel beams and two second directional steel beams which are vertically crossed on the same plane around a standard section of a construction elevator, the foundation beam is positioned on a connecting beam of a core tube wall of a construction elevator hole, platform steel beams which are vertically and fixedly arranged on the first directional steel beams or the second directional steel beams at intervals are arranged at intervals, two ends of the platform steel beams are arranged on the core tube wall of the construction elevator hole through shelving steel beams, and platform plates are paved on the platform steel beams; each second directional steel beam comprises two second section steel beams fixedly arranged between the two first directional steel beams, and two first section steel beams and two third section steel beams fixedly arranged on the connecting beam of the core tube wall body on the side of each first directional steel beam; the aerial foundation platform divides the standard section of the construction elevator into an upper standard section and a lower standard section;

The standard joint stress conversion mechanism comprises two first supporting beams which are distributed on two sides of an upper standard joint and fixedly arranged on one of each first directional steel beam and each second directional steel beam, two second supporting beams which are distributed on two sides of the upper standard joint and fixedly arranged on the two first supporting beams in a vertically stacked manner, and right-angle supporting plates which are welded between the first supporting beams and the upper standard joint and between the second supporting beams and the upper standard joint; the third support beam is connected to the lower part of the upper standard section after the lower standard section is removed;

the scaffold hanging platform is hung on one of the two first direction steel beams and the second direction steel beams on two sides of the standard section and is positioned below the aerial foundation platform;

The pressure slow-release mechanism comprises two brackets which are positioned at the inner side of the lower hanging scaffold platform and welded at the two sides of the lower standard section, a jacking steel beam which is fixedly arranged on each bracket, and a vertical oil cylinder which is vertically arranged between the jacking steel beam and the foundation beam.

In the aerial foundation platform, two ends of the first directional steel beam are fixedly arranged on an X-direction connecting beam of a core tube wall of a construction elevator hole through first embedded parts respectively, and two ends of the second directional steel beam are fixedly arranged on a Y-direction connecting beam of the core tube wall of the construction elevator hole through the first embedded parts respectively.

In the aerial in-situ underpinning platform structure of the super high-rise construction elevator, each shelving steel beam is arranged on a core tube wall body on the side where the corresponding second embedded part is arranged through the corresponding second embedded part, and the second embedded parts are anchored on the side wall of the core tube wall body.

In the pressure slow-release mechanism, the third support beam is welded at the lower part of the upper standard section through the underframe.

Further, the in-situ air underpinning platform structure of the super high-rise construction elevator provided by the invention further comprises:

The steel beam auxiliary hoisting mechanism comprises a suspension frame, an adjusting rope, a hoisting rope and a hoisting ring; the suspension frame comprises two telescopic beams and two fixed beams which are welded on the same plane and are perpendicular to each other, each telescopic beam comprises an outer sleeve and a transverse oil cylinder arranged in the outer sleeve, two ends of each transverse oil cylinder are provided with first pulleys through seat plates, the seat plates at one end of each transverse oil cylinder are welded on the outer sleeve, the seat plates at the other end of each transverse oil cylinder are not connected with the outer sleeve, the upper end surfaces at two ends of the outer sleeve are respectively provided with second pulleys through a seat plate, and the first pulleys and the second pulleys are positioned on the same plane; the transverse oil cylinder is connected with a hydraulic controller, and the hydraulic controller is arranged on the suspension frame; the telescopic beam controls the transverse oil cylinder to stretch and retract through the hydraulic controller so as to adjust the length of the telescopic beam; the first pulleys and the second pulleys passing through two sides of each telescopic beam are wound with one adjusting rope along the same plane; the fixed beam is connected with at least two lifting ropes through lifting lugs on the fixed beam, and all the lifting ropes are connected with the lifting rings in a converging mode.

In the air in-situ underpinning platform structure of the super high-rise construction elevator, one end of the transverse oil cylinder is wrapped with an inner sleeve, the inner sleeve is positioned in the outer sleeve, and the inner sleeve is welded with the seat plate on the side where the inner sleeve is positioned.

Further, the in-situ air underpinning platform structure of the super high-rise construction elevator provided by the invention further comprises a shackle, wherein the adjusting rope is connected with the lifting lug on the first steel beam through the shackle; and/or the lifting rope is connected with the lifting lug on the fixed beam through the shackle.

Further, the in-situ air underpinning platform structure of the super high-rise construction elevator provided by the invention further comprises a positioning locking piece arranged on the telescopic beam, wherein the positioning locking piece is used for positioning the adjusting rope and preventing the adjusting rope from being separated from the first pulley and the second pulley.

In the in-situ air underpinning platform structure of the super high-rise construction elevator, the steel beam auxiliary hoisting mechanism comprises a hoisting frame, a connecting beam and a hydraulic controller, wherein the connecting beam is arranged between two fixed beams, and the hydraulic controller is arranged on the connecting beam.

In order to solve the technical problems, the invention also provides a construction method of the in-situ air underpinning platform structure of the super high-rise construction elevator, which comprises the following steps:

Step S501, dismantling the construction elevator, not dismantling a standard section of the construction elevator, and respectively installing two first embedded parts on the upper surfaces of each X-direction connecting beam and each Y-direction connecting beam of a core tube wall body of a construction elevator hole of a replacement layer;

step S502, a plurality of second embedded parts are arranged on the side walls of each Y-direction wall body of the core tube wall body of the construction elevator hole above the replacement layer in a scattered manner;

Step S503, splicing and welding two first directional steel beams and two second section steel beams of two second directional steel beams on the ground to form a hanging beam of a foundation beam;

step S504, two lifting lugs are arranged at intervals in the length direction of each first steel beam of the hanging beam, the assembled steel beam auxiliary hoisting mechanism is assembled on the ground or provided, and two ends of each adjusting rope of the steel beam auxiliary hoisting mechanism are correspondingly connected to the two lifting lugs of each first steel beam on the side where the two ends of each adjusting rope of the steel beam auxiliary hoisting mechanism are located;

Step S505, connecting a lifting ring of an auxiliary lifting mechanism of a steel beam through a tower crane, lifting the lifting beam to the upper air of a core tube wall of a construction elevator hole on the ground in a horizontal state through the auxiliary lifting mechanism of the steel beam; the hydraulic controller of the steel beam auxiliary hoisting mechanism is used for controlling the length of the transverse oil cylinder to stretch and adjust the telescopic beam to change the positions of the first pulley and the second pulley on the adjusting rope so that the hoisting beam is inclined downwards along one end of the first steel beam in the length direction; the tower crane is used for obliquely lowering the hanging beam in an inclined state in a core tube wall body of a construction elevator hole through the steel beam auxiliary hoisting mechanism, when the hanging beam in an inclined state is lowered to a wall body hole above a connecting beam on the core tube wall body, the hydraulic controller is used for controlling the length of the transverse oil cylinder to stretch and adjust the telescopic beam to change the positions of the first pulley and the second pulley in an adjusting rope so that the hanging beam is in a horizontal state, and the tower crane continuously lowers the hanging beam through a standard section and enables two ends of a first steel beam of the hanging beam to rest on a first embedded part of the X-direction connecting beam through the wall body hole;

step S506, fixing two ends of the first steel beam to corresponding first embedded parts;

Step S507, fixedly arranging first section steel beams and third section steel beams of two second directional steel beams on first embedded parts of the Y-directional connecting beams of the two first directional steel beams and the core tube wall body at the side of the first directional steel beams, so that the two first directional steel beams and the two second directional steel beams form a foundation beam with a groined structure;

step S508, vertically arranging a plurality of platform steel beams at intervals on two first direction steel beams, wherein two ends of each platform steel beam are fixedly arranged on a Y-direction wall body through a shelving steel beam, and the shelving steel beam is fixedly arranged on a corresponding second embedded part at the inner side of the Y-direction wall body;

step S509, paving a platform plate on the platform steel beam to form an aerial foundation platform;

Step S510, two first supporting beams are fixedly arranged on one of the first directional steel beams and the second directional steel beams on two sides of the upper standard section, two second supporting beams are vertically and fixedly arranged on the two first supporting beams, right-angle supporting plates are welded between the first supporting beams and the upper standard section and between the second supporting beams and the upper standard section; the stress of the upper standard section is converted on an aerial foundation platform through the first supporting beam, the second supporting beam and the right-angle supporting plate; the first support beam and the second support beam can be I-steel, rib plates are welded between wing plates of the I-steel, and the rib plates can be used for reinforcing the first support beam and the second support beam;

Step S511, hanging two lower hanging scaffold platforms distributed on two sides of the standard section downwards on the platform steel beam;

Step S512, welding two brackets distributed on two sides of a lower standard section on the inner side of the lower scaffold hanging platform, fixedly arranging a jacking steel beam on each bracket, and vertically arranging a plurality of vertical cylinders between the jacking steel beam and a foundation beam to form a pressure slow-release mechanism;

step S513, controlling the vertical oil cylinder to lift upwards to apply upward thrust to the foundation beam;

Step S514, cutting and dismantling a lower standard section below the pressure slow-release mechanism on the lower hanging scaffold platform by construction operators, and retracting the vertical oil cylinder to slowly apply the weight of the remaining standard section to a foundation beam of the aerial foundation platform, wherein the remaining standard section comprises an upper standard section and an unresectable lower standard section;

step S515, the construction operator removes the pressure slow release mechanism on the lower hanging scaffold platform, and cuts and removes the rest lower standard section below the foundation beam through the lower hanging scaffold platform;

Step S516, a third supporting beam is directly and fixedly arranged at the lower part of the upper standard section or indirectly and fixedly arranged through a bottom frame, two ends of the third supporting beam are respectively and fixedly arranged between two first steel beams or second section steel beams of two second steel beams of the foundation beam, the first supporting beam, the second supporting beam, the right-angle supporting plate and the third supporting beam form a standard section stress conversion mechanism, or the first supporting beam, the second supporting beam, the right-angle supporting plate, the bottom frame and the third supporting beam form a standard section stress conversion mechanism, and the weight of the upper standard section is converted onto an air foundation platform through the standard section stress conversion mechanism;

And S517, dismantling the down-hanging scaffold platform.

Compared with the prior art, the invention has the following beneficial effects:

According to the aerial in-situ underpinning platform structure of the super high-rise construction elevator and the construction method thereof, when the aerial foundation platform of the construction elevator is installed on the replacement layer, the upper standard section of the construction elevator is not removed, and the lower standard section of the construction elevator is removed through cutting, so that the standard section removing operation is reduced, and compared with the traditional installation scheme after all standard sections of the construction elevator are removed, the aerial in-situ underpinning platform structure of the super high-rise construction elevator is improved in installation efficiency, the construction period is shortened, and the cost is reduced.

According to the aerial in-situ underpinning platform structure of the super high-rise construction elevator and the construction method thereof, provided by the invention, under the condition that the standard section of the construction elevator is not dismantled, the aerial in-situ underpinning platform structure of the super high-rise construction elevator is installed, and the construction elevator is installed on the platform structure, so that the outage time of the construction elevator can be shortened, the core tube structure is continuously constructed upwards on a replacement layer, and the overall construction period of the super high-rise building is shortened.

According to the in-situ air underpinning platform structure of the super high-rise construction elevator and the construction method thereof, disclosed by the invention, after the construction elevator is installed on the upper standard section of the in-situ air underpinning platform structure of the super high-rise construction elevator, the weights of the construction elevator and the upper standard section are transferred to the core cylinder wall body through the in-situ air underpinning platform structure of the super high-rise construction elevator, so that the structural stability of the in-situ air underpinning platform structure of the super high-rise construction elevator and the bearing capacity of the construction elevator and the upper standard section of the construction elevator are improved, and the problem of in-situ air conversion of the foundation platform of the super high-rise construction elevator is solved.

According to the air in-situ underpinning platform structure of the super high-rise construction elevator and the construction method thereof, before the lower standard section is not removed, the weight of the standard section of the construction elevator is converted to an air foundation platform through the first support beam, the second support beam and the right-angle support plate of the standard section stress conversion mechanism, and the air foundation platform converts the weight of the standard section to a core barrel wall of a hole of the construction elevator; before the lower standard section below the pressure slow-release mechanism is removed, the construction thrust is lifted upwards for the hollow foundation platform through the vertical oil cylinder of the pressure slow-release mechanism; after the lower standard section below the pressure slow-release mechanism is removed, the vertical oil cylinder is retracted to slowly apply the weight of the remaining standard section to the aerial foundation platform, so that the aerial foundation platform is protected, and the situation that the weight of the remaining standard section is instantaneously pressed on the aerial foundation platform to cause the damage caused by the excessive instantaneous pressure of the aerial foundation platform when the lower standard section is cut and removed is avoided, and high-altitude safety accidents are avoided; after the rest of the standard joints are removed, the weight of the upper standard joints is converted to an aerial foundation platform through the first supporting beam, the second supporting beam, the right-angle supporting plate and the third supporting beam of the standard joint stress conversion mechanism or through the first supporting beam, the second supporting beam, the right-angle supporting plate, the underframe and the third supporting beam of the standard joint stress conversion mechanism, so that the reliable connection between the upper standard joints and the aerial foundation platform is improved, and the structural stability of the upper standard joints mounted on the aerial foundation platform is improved.

According to the construction method of the in-situ air underpinning platform structure of the super high-rise construction elevator, provided by the invention, the foundation beam of the in-flight foundation platform is fixedly arranged on the connecting beam of the core tube wall body of the opening of the construction elevator, the installation reliability of the foundation beam is improved, the platform steel beam improves the installation flatness of the platform plate, the resting steel beam improves the installation reliability of the platform steel beam, the second-direction steel beam is installed in a segmented manner, the integral hoisting of the hanging beam of the foundation beam consisting of the two first-direction steel beams and the second-section steel beams of the two second-direction steel beams is realized, and the hoisting efficiency is improved.

According to the construction method of the in-situ air underpinning platform structure of the super high-rise construction elevator, provided by the invention, the lifting beam is lifted through the steel beam auxiliary lifting mechanism, and the lifting beam is adjusted to be in a horizontal state through the transverse oil cylinder, so that the stable lifting of the lifting beam from the ground to the upper part of the core tube wall of the opening of the construction elevator is realized; the lifting beam is adjusted to be in an inclined state through the transverse oil cylinder, so that the lifting beam is lifted downwards from the high altitude to the core tube wall body of the construction elevator hole through the standard section, and is adjusted to be in a horizontal state through the transverse oil cylinder in the wall body hole above the connecting beam, so that the lifting beam is stably placed on the first embedded part of the X-direction connecting beam, the placing stability of the lifting beam is improved, and the stability and safety of the lifting process of the lifting beam are ensured. And the lifting beam is obliquely lifted in the core tube wall body of the construction elevator hole, so that the problem that the lifting beam cannot be lifted in the core tube wall body of the construction elevator hole because the length of the first steel beam of the lifting beam is larger than the distance between the X-direction walls of the two sides of the core tube wall body of the construction elevator hole is solved.

According to the air in-situ underpinning platform structure of the super high-rise construction elevator and the construction method thereof, the underhung scaffold platform can be used as an operation platform for installing and dismantling the pressure slow-release mechanism and as a construction platform for dismantling the lower standard joint, so that the convenience of the pressure slow-release mechanism in disassembly and dismantling the lower standard joint is improved.

Drawings

FIG. 1 is a schematic plan view of a first embedment and a second embedment mounted on a core tube wall surrounding a construction elevator portal of a standard section;

FIG. 2 is a cross-sectional view at A-A in FIG. 1;

FIG. 3 is a cross-sectional view at B-B in FIG. 1;

Fig. 4 is a schematic plan view of a hanging beam mounted on a core tube wall surrounding a construction elevator portal of a standard node;

FIG. 5 is a schematic plan view of a first section of steel beam and a third section of steel beam forming a foundation beam with a second section of steel beam mounted on a hanging beam and a resting steel beam mounted on a second embedded part;

FIG. 6 is a schematic plan view of a platform deck mounted on foundation beams and resting steel beams and laid on the platform steel beams to form an aerial foundation platform;

FIG. 7 is a schematic plan view of a first support beam and a second support beam of a standard joint stress conversion mechanism mounted on an aerial foundation platform and a standard joint;

FIG. 8 is a schematic cross-sectional view of a first support beam at A-A of FIG. 7 with a gusset mounted thereon;

FIG. 9 is a schematic plan view of a right angle stay mounted on a first support beam and a second support beam;

FIG. 10 is a cross-sectional view at A-A of FIG. 9;

FIG. 11 is a schematic diagram of a front view of a pressure release mechanism and a down-hanging scaffold platform mounted on an aerial foundation platform and a standard section;

FIG. 12 is a schematic perspective view of the installation of a pressure release mechanism and an underhung scaffold platform on an aerial foundation platform and standard nodes;

FIG. 13 is a schematic plan view of a third support beam of the standard joint force conversion mechanism installed after the lower standard joint is removed;

FIG. 14 is a cross-sectional view of FIG. 13 without a third support beam attached at A-A;

FIG. 15 is a cross-sectional view of the third support beam mounted through the undercarriage at A-A of FIG. 13;

FIG. 16 is a schematic perspective view of a steel beam auxiliary hoisting mechanism at a view angle;

Fig. 17 is a schematic perspective view of a steel beam auxiliary hoisting mechanism at another view angle;

FIG. 18 is a schematic perspective view of a telescoping beam;

FIG. 19 is a schematic view of a partial structure of a pulley node of the steel beam auxiliary hoisting mechanism;

FIG. 20 is an enlarged schematic view of the positioning and locking member;

The figure shows:

100. an in-situ air underpinning platform structure of an elevator for super high-rise construction;

110. An aerial foundation platform;

101. The foundation beams, 102, hanging beams, 111, first direction steel beams, 112, second direction steel beams, 1121, first section steel beams, 1122, second section steel beams, 1123, third section steel beams, 113, platform steel beams, 114, platform boards, 115, rest steel beams, 116, first embedded parts, 117 and second embedded parts;

120. a standard section stress conversion mechanism;

121. the first support beam, 122, the second support beam, 123, the rib plate, 124, the right-angle stay plate, 125, the third support beam, 126 and the underframe;

130. A pressure slow release mechanism;

131. bracket, 132, jacking steel beam, 133 and vertical cylinder;

140. hanging down a scaffold platform;

200. A core tube wall;

210. X-direction wall bodies, 211, X-direction connecting beams, 220, Y-direction wall bodies, 221, Y-direction connecting beams, 230 and wall body openings;

300. Standard section 310, upper standard section 320, lower standard section;

400. The steel beam auxiliary hoisting mechanism;

401. a telescopic beam, 402, a fixed beam;

410. Suspension frame 411, outer sleeve 412, transverse cylinder 413, seat plate 414, first pulley 415, second pulley 416, hydraulic controller 417, lifting lug 418, connecting beam 419, inner sleeve;

420. An adjusting rope;

430. A hanging rope;

440. A hanging ring;

450. shackle off;

460. positioning locking pieces 461, bolts 462, nuts 463, upper anchor clamps 464 and lower anchor clamps;

470. A level sensor.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures: the advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.

Referring to fig. 1 to 15, an embodiment of the present invention provides an in-situ air support platform structure of an ultra-high-rise construction elevator, namely an air elevator foundation, which comprises an air foundation platform 110, a standard knot stress conversion mechanism 120, a lower hanging scaffold platform 140 and a pressure slow release mechanism 130, wherein:

The aerial foundation platform 110 comprises a foundation beam 101 with a groined structure, wherein the foundation beam 101 is formed by vertically crossing two first directional steel beams 111 and two second directional steel beams 112 on the same plane around a standard section 300 of a construction elevator, the foundation beam 101 is positioned on a connecting beam of a core tube wall 200 of a construction elevator hole, platform steel beams 113 are vertically and fixedly arranged on the first directional steel beams 111 or the second directional steel beams 112 at intervals, two ends of the platform steel beams 113 are arranged on the core tube wall 200 of the construction elevator hole through shelving steel beams 115, and platform plates 114 are paved on the platform steel beams 113; each second directional steel beam 112 comprises two second section steel beams 1122 fixedly arranged between the two first directional steel beams 111, and two first section steel beams 1121 and two third section steel beams 1123 fixedly arranged on the connecting beam of each first directional steel beam 111 and the core tube wall 200 on the side of the first directional steel beam; the aerial foundation platform 110 divides the standard section 300 of the construction elevator into an upper standard section 310 and a lower standard section 320. The core tube wall 200 for constructing the elevator entrance comprises two X-directional walls 210 and two Y-directional walls 220, wherein the connecting beams comprise X-directional connecting beams 211 positioned on the X-directional walls 210 and Y-directional connecting beams 221 positioned on the Y-directional walls 220. Fig. 5 illustrates a case where the first directional steel beams 111 are disposed on the X-directional connecting beams 211 of the two-sided X-directional wall body 210 and the second directional steel beams 112 are disposed on the Y-directional connecting beams 221 of the two-sided Y-directional wall body 220. In order to improve the reliability of the first directional steel beam 111 and the second directional steel beam 112 on the connecting beam of the core tube wall 200 of the construction elevator hole, two ends of the first directional steel beam 111 are fixedly arranged on the X-directional connecting beam 211 of the core tube wall 200 of the construction elevator hole through the first embedded part 116, and two ends of the second directional steel beam 112 are fixedly arranged on the Y-directional connecting beam 221 of the core tube wall 200 of the construction elevator hole through the first embedded part 116. The distance between the two first direction steel beams 111 may be greater than or equal to the distance between the two second direction steel beams 112, the two second direction steel beams 112 may contact or approach the standard joint 300, and the two first direction steel beams 111 may approach the standard joint 300. The steel placing beams 115 are arranged on the Y-direction wall 220 of the core tube wall 200 at the side where the steel placing beams are arranged through a plurality of second embedded parts 117, and the second embedded parts 117 are anchored on the side wall of the Y-direction wall 220 of the core tube wall 200. Wherein the first direction steel beam 111, the second direction steel beam 112 and the platform steel beam 113 can be I-steel, and the platform plate 114 can be steel plate, and pattern steel plate is preferable for skid resistance.

The standard joint stress conversion mechanism 120 comprises two first supporting beams 121 which are distributed on two sides of an upper standard joint 310 and fixedly arranged on one of each first direction steel beam 111 and each second direction steel beam 112, two second supporting beams 122 which are distributed on two sides of the upper standard joint 310 and vertically stacked and fixedly arranged on the two first supporting beams 121, and right-angle supporting plates 124 which are welded between the first supporting beams 121 and the upper standard joint 310 and between the second supporting beams 122 and the upper standard joint 310; and a third support beam 125 attached to the lower portion of the upper standard section 310 after the lower standard section 320 is removed, and to the foundation beam 101. The first support beam 121 and the second support beam 122 may be i-steel, and rib plates 123 are welded between wing plates of the i-steel, where the rib plates 123 can strengthen the first support beam 121 and the second support beam 122.

The lower hanging scaffold platform 140 is hung on one of the two first directional steel beams 111 and the second directional steel beams 112 on two sides of the standard knot 300 and is positioned below the aerial foundation platform 110. The lower scaffold platform 140 is a 2-layer working platform which can be erected by steel pipes and pipe fasteners.

The pressure slow release mechanism 130 comprises two brackets 131 welded on two sides of the lower standard section 320 at the inner side of the lower scaffold platform 140, a jacking steel beam 132 fixedly arranged on each bracket 131, and a vertical oil cylinder 133 vertically arranged between the jacking steel beam 132 and the foundation beam 101.

Referring to fig. 15, in order to improve the reliability of the connection of the third support beam 125 to the upper standard section 310, the embodiment of the present invention provides the in-situ air underpinning platform structure 100 for an elevator for super high-rise construction, wherein in the pressure slow release mechanism 130, the third support beam 125 is welded to the lower portion of the upper standard section 310 through the bottom frame 126. The underframe 126 can fill the space between the third support beam 125 and the foundation beam 101, so as to ensure the reliability of the connection of the third support beam 125 to the foundation beam 101.

Referring to fig. 16 to 19, in order to implement stable hoisting of the hanging beam 102 of the foundation beam 101, the in-situ air underpinning platform structure 100 of the super high-rise construction elevator provided by the embodiment of the invention may further include:

The steel beam auxiliary hoisting mechanism 400 comprises a suspension frame 410, an adjusting rope 420, a hoisting rope 430 and a hoisting ring 440. The suspension frame 410 comprises two telescopic beams 401 and two fixed beams 402 which are welded perpendicularly on the same plane, each telescopic beam 401 comprises an outer sleeve 411 and a transverse oil cylinder 412 arranged in the outer sleeve, two ends of each transverse oil cylinder 412 are provided with a first pulley 414 through a seat plate 413, the seat plate 413 at one end of each transverse oil cylinder 412 is welded on the outer sleeve 411, the seat plate 413 at the other end of each transverse oil cylinder is not connected with the outer sleeve 411, the upper end surfaces at two ends of the outer sleeve 411 are respectively provided with a second pulley 415 through a seat plate 413, and the first pulley 414 and the second pulley 415 are positioned on the same plane; the lateral cylinder 412 is connected with a hydraulic controller 416, and the hydraulic controller 416 is disposed on the suspension frame 410; the telescopic beam 401 controls the transverse oil cylinder 412 to stretch and retract through the hydraulic controller 416 so as to adjust the length of the telescopic beam 401; each telescopic beam 401 is wound with one adjusting rope 420 along the same plane through the first pulley 414 and the second pulley 415 on two sides; the fixed beam 402 is connected with at least two lifting ropes 430 through lifting lugs 417 on the fixed beam, and all the lifting ropes 430 are connected with lifting rings 440 in a converging way.

Referring to fig. 16 to 18, in order to improve the reliable connection between the first pulley 414 and the transverse cylinder 412, in the air in-situ underpinning platform structure 100 for a super high-rise construction elevator provided by the embodiment of the present invention, in the steel beam auxiliary hoisting mechanism 400, one end of the transverse cylinder 412 is wrapped with an inner sleeve 419, the inner sleeve 419 is located inside the outer sleeve 411, and the inner sleeve 419 is welded to the seat plate 413 on the side where the inner sleeve 419 is located. The welding to the seat plate 413 with the transverse cylinder 412 and the inner sleeve 419 improves the stable connection of the first pulley 414.

Referring to fig. 16 to 17, in order to improve the hinging effect between the adjusting rope 420 and the hanging beam 102, the in-situ air underpinning platform structure 100 for the super high-rise construction elevator provided by the embodiment of the invention, the steel beam auxiliary hoisting mechanism 400 further includes a shackle 450, and the adjusting rope 420 is connected with the lifting lug 417 on the first steel beam 111 through the shackle 450. When the telescopic beam 401 changes length, both ends of the adjusting rope 420 can change angles with the first steel beam 111 of the hanging beam 102, so as to ensure the stability of the hanging beam 102 in a horizontal state or an inclined state. Wherein lifting rope 430 may also be connected to lifting lug 417 on fixed beam 402 by shackle 450.

Referring to fig. 16, 17, 19 and 20, in order to ensure that the first pulley 414 and the second pulley 415 of the suspension frame 410 adjust the horizontal state or the inclined state of the suspension beam 102 through the adjusting rope 420, the air in-situ underpinning platform structure 100 for the super high-rise construction elevator provided by the embodiment of the invention, the steel beam auxiliary hoisting mechanism 400 further comprises a positioning locking member 460 arranged on the telescopic beam for positioning and locking the adjusting rope 420 and preventing the adjusting rope 420 from being separated from the first pulley 414 and the second pulley 415. After the adjusting rope 420 is wound on the first pulley 414 and the second pulley 415, the adjusting rope 420 is fixed by the positioning locking member 460, so that when the transverse cylinder 412 of the telescopic beam 401 of the suspension frame 410 stretches, the adjusting rope 420 can not rotate on the first pulley 414 and the second pulley 415 at one end of the telescopic beam 401, but rotate on the first pulley 414 and the second pulley 415 at the other end of the telescopic beam 401, and the hanging point of the adjusting rope 420 on the first pulley 414 and the second pulley 415 at the rotatable end is changed through the length of the telescopic beam 401, so that the adjusting hanging beam 102 is in a horizontal state or an inclined state. That is, the two ends of the telescopic beam 401 are used as suspension points of the adjusting rope 420 at the first pulley 414 and the second pulley 415, one end is a fixed suspension point, and the other end is a movable suspension point. Wherein the number of the positioning locking pieces 460 is two, and each positioning locking piece 460 is arranged at the same end of each telescopic beam 401. The positioning locking member 460 comprises two vertical bolts 461, two nuts 462 arranged on each vertical bolt 461, and an upper anchor ear 463 and a lower anchor ear 464 sleeved on the two vertical bolts 461, wherein the upper anchor ear and the lower anchor ear are locked on the adjusting rope 420.

Referring to fig. 16 to 17, in order to ensure structural stability of the suspension frame 410, in the in-situ air underpinning platform structure 100 for an elevator for super high-rise construction provided by the embodiment of the present invention, in the steel beam auxiliary hoisting mechanism 400, the suspension frame 410 further includes a connection beam 418 disposed between two of the fixed beams 402, and the hydraulic controller 416 is disposed on the connection beam 418.

The embodiment of the invention also provides a construction method of the in-situ air underpinning platform structure 100 of the super high-rise construction elevator, which comprises the following steps:

In step S501, please refer to fig. 1 to 2, the construction elevator is removed, the standard section 300 of the construction elevator is not removed, and two first embedded parts 116 are respectively installed on the upper surfaces of each X-directional connecting beam 211 and each Y-directional connecting beam 221 of the core tube wall 200 of the construction elevator hole of the replacement layer.

In step S502, referring to fig. 1 and 3, a plurality of second embedded parts 117 are mounted on the side walls of the Y-directional wall 220 of the core tube wall 200 for constructing the elevator hole above the replacement layer in a scattered manner. Wherein the second embedment 117 is anchored to the inside wall of the Y-direction wall 220. When the replacement layer is an nth layer, the first embedded part 116 is disposed on the nth layer, and the second embedded part 117 may be disposed on the n+1th layer, which is also dependent on the thickness of the foundation beam 101.

In step S503, please refer to fig. 16 and 17, the hanging beam 102 of the foundation beam 101 is formed by assembling and welding the two first directional steel beams 111 and the second section steel beams 1122 of the two second directional steel beams 112 on the ground. Wherein the second section 1122 of steel beam may be welded to the standard knot 300.

In step S504, referring to fig. 16 to 17, two lifting lugs 417 are disposed at intervals along the length direction of each first direction steel beam 111 of the lifting beam 102, the assembled auxiliary steel beam lifting mechanism 400 is assembled or provided on the ground, and two ends of each adjusting rope 420 of the auxiliary steel beam lifting mechanism 400 are respectively and correspondingly connected to the two lifting lugs 417 of each first direction steel beam 111 on the side.

Step S505, please refer to fig. 16, 17 and 4, wherein the tower crane (not shown) is connected with the hanging ring 440 of the steel beam auxiliary hanging mechanism 400, and the tower crane is used for hanging the hanging beam 102 in a horizontal state to the upper space of the core tube wall 200 of the construction elevator hole on the ground through the steel beam auxiliary hanging mechanism 400; the hydraulic controller 416 of the steel beam auxiliary hoisting mechanism 400 controls the transverse oil cylinder 412 to stretch and retract to adjust the length of the telescopic beam 401, and the positions of the first pulley 414 and the second pulley 415 at the adjusting rope 420 are changed so that the hoisting beam 102 is inclined downwards along one end of the first steel beam 111 in the length direction; the tower crane inclines the hanging beam 102 in an inclined state in the core tube wall 200 of the construction elevator hole through the steel beam auxiliary hoisting mechanism 400, when the hanging beam 102 in an inclined state is lowered to the wall hole 230 above the connecting beam on the core tube wall 200, the hydraulic controller 416 controls the transverse oil cylinder 412 to stretch and adjust the length of the telescopic beam 401 to change the positions of the first pulley 414 and the second pulley 415 at the adjusting rope 420 so that the hanging beam 102 is in a horizontal state, and the tower crane continues to lower the hanging beam 102 through the standard knot 300, and the two ends of the first steel beam 111 of the hanging beam 102 are placed on the first embedded part 116 of the X-direction connecting beam 211 through the wall hole 230. Namely, the steel beam auxiliary hoisting mechanism 400 is installed with the hanging beam 102, so that the hanging beam 102 enters from the top of the core tube wall 200 at the opening of a construction elevator, obliquely passes through the narrow core tube wall 200 and falls down, and is leveled and fixed after reaching a designated position.

In step S505, a level sensor 470 may also be mounted on the first or second section of the steel beam 111, 1122 of the lifting beam 102, wherein the level sensor 470 may be an angle sensor. The level sensor 470 communicates the tilt angle of the lifting beam 102 to the hydraulic controller 416, and the hydraulic controller 416 adjusts the lateral cylinder 412. When the hanging beam 102 needs to incline, the transverse oil cylinder 412 pushes the inner sleeve 419 at the movable end, the first pulley 414 and the second pulley 415 connected with the inner sleeve 419 drive the adjusting rope 420 to drive, the movable end adjusting rope 420 is shortened, the length of the fixed end adjusting rope 420 is unchanged, and the hanging beam 102 is inclined; when the lifting beam 102 needs to be leveled, the transverse cylinder 412 retracts the inner sleeve 419 of the movable end, thereby tilting the lifting beam 102. The steel beam auxiliary hoisting mechanism 400 can realize automatic tilting and leveling of the overweight hanging beam 102, does not need operators to enter the core tube wall 200, solves the problem that the included angle of the adjusting rope 420 at the hoisting point exceeds a reasonable range and the hoisting point is stressed too much, and ensures the hoisting safety.

In step S506, please refer to fig. 4, the two ends of the first guiding beam 111 are fixedly disposed on the corresponding first embedded parts 116. I.e., the first direction steel beam 111 is fixedly connected with the first embedded part 116.

In step S507, referring to fig. 5, the first section steel beams 1121 and the third section steel beams 1123 of the two second directional steel beams 112 are fixedly disposed on the first embedded parts 116 of the two first directional steel beams 111 and the Y-directional connecting beams 221 of the core tube wall 200 on the side where they are located to form a complete second directional steel beam 112, so that the two first directional steel beams 111 and the two second directional steel beams 112 form the foundation beam 101 with a groined structure. Namely, the second section steel beam 1122 is welded between the two first direction steel beams 111, one end of the first section steel beam 1121 is welded on the first direction steel beam 111 close to the first direction steel beam, the other end of the first section steel beam 1121 is fixedly connected with the first embedded part 116, one end of the third section steel beam 1123 is welded on the first direction steel beam 111 close to the first direction steel beam, and the other end of the third section steel beam 1123 is fixedly connected with the second embedded part 117 at the corresponding position. The first and second forward beams 111, 112 of the foundation beam 101 are in the same plane.

In step S508, referring to fig. 6, a plurality of platform steel beams 113 are vertically arranged on two first direction steel beams 111 at intervals, two ends of each platform steel beam 113 are fixedly arranged on the Y-direction wall 220 through a placing steel beam 115, and the placing steel beam 115 is positioned on the inner side of the Y-direction wall 220 and is fixedly arranged on a corresponding second embedded part 117. The upper surface of the resting steel beam 115 is at the same elevation as the upper surface of the foundation beam 101. The platform steel beam 113 is fixedly arranged by taking the rest steel beam 115 and the foundation beam 101 as supports.

In step S509, referring to fig. 6, a platform plate 114 is laid on the platform steel beam 113 to form the aerial foundation platform 110. Wherein the platform plate 114 may be a steel plate.

Step S510, please refer to fig. 7 to 10, wherein two first support beams 121 are fixedly disposed on one of the first directional steel beams 111 and the second directional steel beams 112 on both sides of the upper standard section 310, two second support beams 122 are vertically fixedly disposed on the two first support beams 121, right angle stay plates 124 are welded between the first support beams 121 and the upper standard section 310 and between the second support beams 122 and the upper standard section 310; the stress of the upper standard knot 310 is converted to the aerial foundation platform 110 by the first support beam 121, the second support beam 122 and the right angle stay 124. Fig. 7 illustrates a case where the first support beam 121 is disposed on the second steel beam 112. The first support beam 121 and the second support beam 122 may be i-steel, and rib plates 123 are welded between the wing plates of the i-steel to reinforce the first support beam 121 and the second support beam 122. At this time, the first support beam 121 may be stacked on the second section steel beam 1122, and the second support beam 122 may be stacked on the first support beam 121. The right angle stay 124 may be 8.

In step S511, please refer to fig. 11 to 12, two suspended scaffold platforms 140 are suspended downward from the platform steel beams 113 and distributed on both sides of the standard section 300. Wherein the underhung scaffold platform 140 may be suspended from the platform steel beam 113 at intervals through the platform deck 114 or directly from the platform steel beam 113 without the platform deck 114 being laid there.

In step S512, referring to fig. 11 to 12, two brackets 131 distributed on two sides of the lower standard section 320 are welded on the lower standard section 320 inside the lower scaffold platform 140, a jacking steel beam 132 is fixedly arranged on each bracket 131, and a plurality of vertical cylinders 133 are vertically arranged between the jacking steel beam 132 and the foundation beam 101 to form a pressure slow-release mechanism 130. Four vertical cylinders 133 are illustrated.

In step S513, referring to fig. 11 to 12, the vertical cylinder 133 is controlled to lift upward to apply an upward thrust to the foundation beam 101.

In step S514, please refer to fig. 10, 11 to 12, the construction operator cuts and removes the lower standard section 320 under the pressure release mechanism 130 on the hanging scaffold platform 140, and the retracting vertical cylinder 133 slowly applies the weight of the remaining standard section 300 to the foundation beam 101 of the aerial foundation platform 110, wherein the remaining standard section 300 includes the upper standard section 310 and the unrestrained lower standard section 320.

In step S515, referring to fig. 13 to 15, the construction worker removes the pressure release mechanism 130 on the lower scaffold platform 140, and cuts the lower standard section 320 remaining under the foundation beam 101 through the lower scaffold platform 140. The lower standard section 320 is completely removed to facilitate the construction of subsequent procedures in the core tube, such as floor slab, two-structure, electromechanical construction, and to shorten the total construction period of the project.

In step S516, please refer to fig. 13 and 15, the third support beam 125 is directly fixed at the lower portion of the upper standard section 310 or indirectly fixed through the underframe 126, two ends of the third support beam 125 are respectively fixed between the two first direction steel beams 111 of the foundation beam 101 or the two second section steel beams 1122 of the second direction steel beam 112, so that the first support beam 121, the second support beam 122, the right angle support plate 124 and the third support beam 125 form the standard section stress conversion mechanism 120, or the first support beam 121, the second support beam 122, the right angle support plate 124, the underframe 126 and the third support beam 125 form the standard section stress conversion mechanism 120, and the weight of the upper standard section 310 is converted onto the aerial foundation platform 110 through the standard section stress conversion mechanism 120. Because the first support beam 121 and the second support beam 122 are welded with the upper standard section 310 by the right angle supporting plates 124 and the 4 upright posts of the upper standard section 310, the requirement on welding seams is very high, and the fatigue of the welding seams can be caused by vibration generated by long-term operation, the third support beam 125 and the adjustable underframe 126 are required to be combined to serve as the bottom foundation of the upper standard section 310, the reinforcement purpose is realized, and the reliability of the upper standard section 310 and the aerial foundation platform 110 in the stress conversion is ensured. The lower bottom elevation of the third supporting beam 125 is required to be not lower than the lower bottom elevation of the foundation beam 101, so as to ensure that two ends of the third supporting beam 125 are welded and fixed on the second section steel beam 1122 of the foundation beam 101 respectively, ensure reliable connection of the third supporting beam 125, and realize a larger bearing capacity for the upper standard section 310.

In step S517, please refer to fig. 13 to 15, the down-hanging scaffold platform 140 is removed.

According to the in-situ air underpinning platform structure 100 and the construction method of the in-situ air underpinning platform structure for the super high-rise construction elevator, when the in-situ air foundation platform 110 of the construction elevator is installed on a replacement floor, the upper standard section 310 of the construction elevator is not removed, the lower standard section 320 of the construction elevator is removed through cutting, the removal operation of the standard section 300 is reduced, and compared with the installation scheme after all the standard sections 300 of the traditional construction elevator are removed, the installation efficiency of the in-situ air underpinning platform structure for the super high-rise construction elevator is improved, the construction period is shortened, and the cost is reduced. Where "in-situ" in the construction elevator in-situ air underpinning platform structure means that the position of the in-air foundation platform 110 has not been changed.

According to the in-situ air underpinning platform structure 100 of the super high-rise construction elevator and the construction method thereof, provided by the embodiment of the invention, under the condition that the standard section 300 of the construction elevator is not dismantled, the in-situ air underpinning platform structure of the super high-rise construction elevator is installed, and the construction elevator is installed on the platform structure, so that the outage time of the construction elevator can be shortened, the core tube structure is continuously constructed upwards above a replacement layer, and the overall construction period of the super high-rise building is shortened.

According to the in-situ air underpinning platform structure 100 of the super high-rise construction elevator and the construction method thereof, after the construction elevator is installed on the upper standard section 310 of the in-situ air underpinning platform structure of the super high-rise construction elevator, the weight of the construction elevator and the upper standard section 310 is transferred to the core tube wall 200 through the in-situ air underpinning platform structure of the super high-rise construction elevator, the structural stability of the in-situ air underpinning platform structure of the super high-rise construction elevator and the bearing capacity of the construction elevator and the upper standard section 310 of the construction elevator are improved, and the problem of in-situ air conversion of a foundation platform of the super high-rise construction elevator is solved.

According to the in-situ air underpinning platform structure 100 of the super high-rise construction elevator and the construction method thereof provided by the embodiment of the invention, before the lower standard section 320 is not removed, the weight of the standard section 300 of the construction elevator is converted to the air foundation platform 110 through the first support beam 121, the second support beam 122 and the right-angle support plate 124 of the standard section stress conversion mechanism 120, and the air foundation platform 110 converts the weight of the standard section 300 to the core barrel wall 200 of a construction elevator hole; before the lower standard section 320 below the pressure release mechanism 130 is removed, the construction thrust is lifted upwards for the hollow foundation platform 110 through the vertical oil cylinder 133 of the pressure release mechanism 130; after the lower standard section 320 below the pressure slow-release mechanism 130 is removed, the vertical oil cylinder 133 is retracted to slowly apply the weight of the remaining standard section 300 to the aerial foundation platform 110, so as to protect the aerial foundation platform 110, and avoid the damage caused by the excessive instantaneous pressure of the aerial foundation platform 110 due to the instantaneous pressure bearing of the weight of the remaining standard section 300 on the aerial foundation platform 110 when the lower standard section 300 is cut and removed, and avoid the occurrence of high-altitude safety accidents; after the remaining lower standard section 320 is removed, the weight of the upper standard section 310 is converted to the aerial base platform 110 by the first support beam 121, the second support beam 122, the right angle stay 124, and the third support beam 125 of the standard section force conversion mechanism 120 or by the first support beam 121, the second support beam 122, the right angle stay 124, the undercarriage 126, and the third support beam 125 of the standard section force conversion mechanism 120, improving the reliable connection of the upper standard section 310 to the aerial base platform 110 and improving the structural stability of the upper standard section 310 mounted on the aerial base platform 110.

According to the construction method for the in-situ air underpinning platform structure 100 of the super high-rise construction elevator, provided by the embodiment of the invention, the foundation beam 101 of the in-flight foundation platform 110 is fixedly arranged on the connecting beam of the core tube wall 200 at the opening of the construction elevator, the installation reliability of the foundation beam 101 is improved, the platform steel beam 113 improves the installation flatness of the platform plate 114, the shelving steel beam 115 improves the installation reliability of the platform steel beam 113, the second directional steel beam 112 is installed in a segmented manner, the integral hoisting of the hanging beam 102 of the foundation beam 101 consisting of the two first directional steel beams 111 and the second section steel beams 1122 of the two second directional steel beams 112 is realized, and the hoisting efficiency is improved.

According to the construction method of the in-situ air underpinning platform structure 100 of the super high-rise construction elevator, provided by the embodiment of the invention, the lifting beam 102 is lifted through the steel beam auxiliary lifting mechanism 400, the lifting beam 102 is adjusted to be in a horizontal state through the transverse oil cylinder 412, and the stable lifting of the lifting beam 102 from the ground to the upper air of the core tube wall 200 of the opening of the construction elevator is realized; the hanging beam 102 is adjusted to be in an inclined state through the transverse oil cylinder 412 so as to realize that the hanging beam 102 is obliquely and downwards lifted from the high altitude to the core tube wall 200 of the construction elevator hole through the standard section 300, and the hanging beam 102 is adjusted to be in a horizontal state through the transverse oil cylinder 412 in the wall hole 230 above the connecting beam, so that the hanging beam 102 is stably placed on the first embedded part 116 of the X-direction connecting beam 211, the placing stability of the hanging beam 102 is improved, and the lifting stability and safety of the hanging beam 102 are ensured. And the lifting beam 102 is obliquely lifted in the core tube wall 200 of the construction elevator hole, so that the problem that the lifting beam 102 cannot be lifted in the core tube wall 200 of the construction elevator hole because the length of the first steel beam 111 of the lifting beam 102 is longer than the distance between the two X-direction walls of the core tube wall 200 of the construction elevator hole is solved.

According to the in-situ air underpinning platform structure 100 and the construction method of the super high-rise construction elevator provided by the embodiment of the invention, the underpinning scaffold platform 140 can be used as an operation platform for installing and dismantling the pressure slow-release mechanism 130 and as a construction platform for dismantling the lower standard section 320, so that the convenience for installing and dismantling the pressure slow-release mechanism 130 and the lower standard section 320 is improved.

The embodiment of the invention also provides a construction method of the in-situ air underpinning platform structure 100 of the super high-rise construction elevator, so that the construction elevator can be reduced in assembly, disassembly and efficient installation on the premise of ensuring the safety of construction in the process of high-speed air conversion, and the problem that the super high-rise construction elevator safely and efficiently completes air conversion is solved.

The embodiment of the invention also provides a construction method of the in-situ air underpinning platform structure 100 of the super high-rise construction elevator, and the fixed arrangement comprises but is not limited to welding and bolting.

The present invention is not limited to the above-described embodiments, but rather, the above-described embodiments are merely examples of some, but not all embodiments of the present invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention. Other levels of modification and variation to the present invention may occur to those skilled in the art. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims.

Claims

1. The utility model provides an aerial normal position underpinning platform structure of super high-rise construction elevator which characterized in that includes:

2. The air in-situ underpinning platform structure of the super high-rise construction elevator according to claim 1, wherein in the air foundation platform, two ends of the first directional steel beam are fixedly arranged on an X-direction connecting beam of a core tube wall body of a construction elevator hole through first embedded parts respectively, and two ends of the second directional steel beam are fixedly arranged on a Y-direction connecting beam of the core tube wall body of the construction elevator hole through first embedded parts respectively.

3. The super high-rise construction elevator in-situ air underpinning platform structure according to claim 1, wherein in the air foundation platform, each shelving steel beam is arranged on a core tube wall on the side where the shelving steel beams are arranged through a plurality of second embedded parts, and the second embedded parts are anchored on side walls of the core tube wall.

4. The super high-rise construction elevator in-situ air underpinning platform structure according to claim 1, wherein in the pressure slow release mechanism, the third support beam is welded to the lower part of the upper standard knot through a bottom frame.

5. The super high-rise construction elevator in-situ air underpinning platform structure of claim 1, further comprising:

6. The in-situ air underpinning platform structure for the super high-rise construction elevator according to claim 5, wherein in the steel beam auxiliary hoisting mechanism, one end of the transverse oil cylinder is wrapped and provided with an inner sleeve, the inner sleeve is positioned in the outer sleeve, and the inner sleeve is welded with the seat plate on the side where the inner sleeve is positioned.

7. The super high-rise construction elevator in-situ air underpinning platform structure according to claim 5, wherein the steel beam auxiliary hoisting mechanism further comprises a shackle, and the adjusting rope is connected with the lifting lug on the first steel beam through the shackle; and/or the lifting rope is connected with the lifting lug on the fixed beam through the shackle.

8. The super high-rise construction elevator in-situ air underpinning platform structure according to claim 5, wherein the steel beam auxiliary hoisting mechanism further comprises a positioning locking member arranged on the telescopic beam for positioning the adjusting rope and preventing the adjusting rope from being separated from the first pulley and the second pulley.

9. The super high-rise construction elevator in-situ air underpinning platform structure according to claim 5, wherein in the steel beam auxiliary hoisting mechanism, the suspension frame further comprises a connection beam disposed between two of the fixed beams, and the hydraulic controller is disposed on the connection beam.

10. A construction method of the in-situ air underpinning platform structure of the super high-rise construction elevator according to any one of claims 1 to 4, comprising:

step S504, two lifting lugs are arranged at intervals in the length direction of each first direction steel beam of the hanging beam, the steel beam auxiliary hoisting mechanism in the assembled claim 6 is assembled or provided on the ground, and two ends of each adjusting rope of the steel beam auxiliary hoisting mechanism are correspondingly connected to the two lifting lugs of each first direction steel beam on the side;

Step S510, two first supporting beams are fixedly arranged on one of the first directional steel beams and the second directional steel beams on two sides of the upper standard section, two second supporting beams are vertically and fixedly arranged on the two first supporting beams, right-angle supporting plates are welded between the first supporting beams and the upper standard section and between the second supporting beams and the upper standard section; the stress of the upper standard section is converted on an aerial foundation platform through the first supporting beam, the second supporting beam and the right-angle supporting plate;

And S517, dismantling the down-hanging scaffold platform.