Lifting platform for hydraulic synchronous lifting of steel structure

Abstract

The utility model provides a lifting platform for hydraulic synchronous lifting of a steel structure. The lifting platform is used for lifting a net rack to the tops of a plurality of steel columns and fixing the net rack. The mounting platform is arranged on a bracket at the top end of a steel column, can provide sufficient mounting space for an original mounting rod when the mounting rod is lifted, can be integrally cut off after the mounting rod is completed, is simple and convenient to disassemble, convenient to repeatedly use in subsequent engineering, simple and convenient to mount, remarkable in economic benefit and capable of being widely applied to hydraulic lifting mounting engineering of a steel structure. Compared with the prior art, the clamping plates are installed at the connecting positions of the distribution beams and the lifting beams, more balance and stability are achieved, the stiffening plates are arranged in the corresponding interiors of the lifting beams, the distribution beams and the steel column brackets, and loads generated by hydraulic lifting can be effectively borne. The lifting platform can be reused after being detached when an engineering project is lifted in a partitioned mode, consumption of a large amount of materials is reduced, and the lifting platform is economical.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering construction technical field especially a kind of steel structure hydraulic synchronous lifting's lifting platform device. BACKGROUND

[0002] With the acceleration of urbanization, in recent years, the application field of steel structure roof net rack structure is very extensive, including large industrial plants, stadiums, exhibition halls and so on, especially some modern architectural design, almost all consider using steel structure roof net rack structure. The steel structure installation construction method of "super large component hydraulic synchronous lifting technology" is more widely used.

[0003] Before installing hydraulic hoist, corresponding design and installation need to be made to lifting platform in different positions, which needs to be carried out from the stress, deformation and other stress conditions of lifting platform support structure. If the stress and deformation of lifting platform support structure do not meet the requirements, it will cause collapse due to insufficient bearing capacity, uneven stress and deformation and other major accidents; if the lifting platform structure is not well designed, it will not be able to reserve enough space for subsequent rod replacement, and the subsequent rod cannot be installed, which will affect the lifting and result in failure, the consequences of which are unpredictable, so it is urgent to have a lifting platform device to support the structure and make sufficient preparation for the installation and lifting of subsequent hydraulic hoist and rod replacement. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of lifting platform for steel structure hydraulic synchronous lifting, to solve the problem of providing position for hydraulic hoist installation, its bearing capacity, deformation meet specification requirements;And influence subsequent rod replacement project, cannot provide enough space influence rear rod replacement problem.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of lifting platform for steel structure hydraulic synchronous lifting, for lifting net rack to the top of several steel columns and fixing;Including lifting platform respectively installed at the top of several steel columns;Hydraulic hoist and temporary connecting rod frame are all equipped on the lifting platform, the temporary connecting rod frame is arranged on the net rack, the hydraulic hoist is connected with the temporary connecting rod frame through steel strand, the temporary connecting rod frame is lifted by the steel strand driven by the hydraulic hoist, so as to lift the whole of the net rack;Several connecting rod frames and replacement rod frames are provided on the net rack;Several connecting rod frames and replacement rod frames are connected with the net rack as a whole, for bearing the gravity of the net rack and erecting on several steel columns after the temporary connecting rod frame is disassembled.

[0007] Preferably, the steel columns defining positions matching the shape of the net rack are corner steel columns, center steel columns and edge steel columns; the lifting platform comprises corner lifting platforms, center lifting platforms and edge lifting platforms respectively arranged at the top of the corner steel columns, center steel columns and edge steel columns; the temporary connecting rod frame is arranged at the corner, center and edge of the net rack respectively; the corner, center and edge of the net rack are simultaneously lifted as the stress points of the supporting net rack by the corresponding hydraulic lifters of the corner lifting platform, center lifting platform and edge lifting platform, thereby synchronously lifting the whole net rack.

[0008] Preferably, the corner lifting platform, center lifting platform and edge lifting platform each comprise a lifting beam, a bracket and a column; the bracket is welded to the steel column, the lifting beam is arranged above the bracket, and the column is arranged between the bracket and the lifting beam; the hydraulic lifter is arranged on the lifting beam, and the hydraulic lifter is connected to the temporary connecting rod frame through a steel strand.

[0009] Preferably, the corner lifting platform is arranged at the corner of the net rack and is used for lifting the corner of the net rack, and comprises a first platform lifting beam, a first platform column, a T-shaped bracket, a first platform temporary connecting rod frame and an auxiliary support rod; the T-shaped bracket is welded to the steel column, the first platform lifting beam is arranged above the T-shaped bracket, a group of hydraulic lifters with steel strands are installed on the first platform lifting beam, and the T-shaped bracket is connected to the first platform lifting beam through two first platform columns and an auxiliary support rod; the first platform temporary connecting rod frame is installed on the corner of the net rack through a welding ball, a lifting point is arranged on the first platform temporary connecting rod frame, and the lifting point is connected to the hydraulic lifters on the first platform lifting beam through a steel strand.

[0010] Preferably, the center lifting platform is arranged at the center position of the net rack and is used for lifting the center of the net rack, and comprises a second platform lifting beam, a second platform column, an X-shaped bracket, a second platform connecting rod, a second platform distribution beam and a second platform temporary connecting rod frame; the X-shaped bracket is welded to the steel column, the second platform lifting beam is arranged above the X-shaped bracket, and two groups of hydraulic lifters with steel strands are installed on the second platform lifting beam; the second platform column has four ends, one end of each of the four second platform columns is arranged on the X-shaped forked end of the X-shaped bracket, the other end of each of the four second platform columns is connected to the second platform distribution beam, two groups of second platform distribution beams are connected to the second platform lifting beam, and the second platform temporary connecting rod frame has six ends; the second platform temporary connecting rod frame is installed above the center steel column arrangement point of the net rack through a welding ball, a lifting point is arranged on the second platform temporary connecting rod frame, and the lifting point is connected to the hydraulic lifters on the second platform lifting beam through a steel strand.

[0011] Preferably, the edge lifting platform is arranged at the edge of the net rack for lifting the edge of the net rack, comprising a third platform lifting beam, a main platform column, a Y-shaped bracket, an auxiliary platform column, a third platform connecting rod, a third platform distribution beam and a third platform temporary connecting rod frame; the Y-shaped bracket is welded on the steel column, a third platform lifting beam is arranged above the Y-shaped bracket, a group of hydraulic jacks with steel strands are installed on the third platform lifting beam, the Y-shaped bracket is connected with the third platform lifting beam through three third platform columns; the third platform temporary connecting rod frame is installed on the edge of the net rack through a welded ball, a lifting point is arranged on the third platform temporary connecting rod frame, and the lifting point is connected with the hydraulic jacks on the third platform lifting beam through steel strands.

[0012] Preferably, the third platform column comprises a main platform column and two auxiliary platform columns, one end of the two auxiliary platform columns is connected through a third platform distribution beam and arranged at the bottom of the third platform lifting beam, and the other end of the two auxiliary platform columns is arranged at the two ends of the Y-shaped fork of the Y-shaped bracket respectively; the two ends of the main platform column are connected with the third platform lifting beam and the Y-shaped end of the Y-shaped bracket respectively.

[0013] Preferably, the two groups of second platform distribution beams are connected through a second platform connecting rod to provide stable connection; the main platform column and the two auxiliary platform columns of the third platform column are connected through a V-shaped third platform connecting rod to provide stable connection.

[0014] Preferably, a U-shaped opening is arranged on the lifting beam, and the hydraulic jacks are fixed above the U-shaped opening through four clamping plates welded.

[0015] Preferably, the connecting rod frame and the supplementary rod frame each comprise at least three connecting rods, and the connecting rods are connected with the net rack through welded balls and bolt balls.

[0016] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0017] (1) The utility model can be reused, and after the lifting platform is disassembled, it can be reused for the lifting of a project division, thereby reducing the consumption of a large amount of material and saving cost.

[0018] (2) The utility model is arranged on the bracket at the top of the steel column, sufficient original rod installation space can be provided when the supplementary rod is lifted, the lifting platform can be cut down as a whole after the supplementary rod is completed, and the disassembly is simple and convenient, the subsequent engineering can be repeatedly used, the installation is simple and convenient, the economic benefit is remarkable, and the utility model can be widely applied to steel structure hydraulic lifting installation engineering.

[0019] (3) The utility model discloses the connecting place of distribution beam and promotion beam is equipped with the card board, compared with prior art is more balanced stable, promotion beam, distribution beam and steel column bracket corresponding inside all have stiffened plate, can effectively bear the load that hydraulic pressure promotion produces. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of structure schematic view of edge corner lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of edge corner lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion;

[0021] Figure 2 The utility model provides a kind of structure schematic view of edge corner lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of edge corner lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion;

[0022] Figure 3 The utility model provides a kind of structure schematic view of center lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of center lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion;

[0023] Figure 4 The utility model provides a kind of structure schematic view of center lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of center lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion;

[0024] Figure 5 The utility model provides a kind of structure schematic view of edge lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of edge lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion;

[0025] Figure 6 The utility model provides a kind of structure schematic view of edge lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion for the utility model provides a kind of structure schematic view of edge lifting platform in lifting platform for steel structure hydraulic pressure synchronous promotion.

[0026] The serial number in drawing is as follows:

[0027] 100, steel column;200, edge corner lifting platform;201, first platform lifting beam;202, first platform stand;203, T-shaped bracket;204, first platform temporary connecting pole frame;205, auxiliary support pole;300, hydraulic pressure promoter;400, supplementary pole frame;500, connecting pole frame;600, center lifting platform;601, second platform lifting beam;602, second platform stand;603, X-shaped bracket;604, second platform contact pole;605, second platform distribution beam;606, second platform temporary connecting pole frame;700, edge lifting platform;701, third platform lifting beam;702, main platform stand;703, Y-shaped bracket;704, auxiliary platform stand;705, third platform contact pole;706, third platform distribution beam;707, third platform temporary connecting pole frame;800, net rack. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] As shown in Figures 1 to 6 The utility model discloses a kind of lifting platforms for steel structure hydraulic synchronous lifting, for lifting truss 800 to the top of several steel columns 100 and fixed;In the present embodiment, the steel column 100 defined with the position matching the appearance of truss 800 in several steel columns 100 is corner steel column, center steel column and edge steel column.

[0030] Lifting platform includes respectively installing in corner lifting platform 200, center lifting platform 600 and edge lifting platform 700 of corner steel column, center steel column and edge steel column top, corner lifting platform 200, center lifting platform 600 and edge lifting platform 700 are equipped with hydraulic hoist 300 and temporary connecting pole frame on it.Temporary connecting pole frame is respectively arranged in the corner, center and edge of truss 800.

[0031] As shown in Figure 1 And Figure 2 Corner lifting platform 200 is arranged in the corner of truss 800, for lifting the corner of truss 800, including first platform lifting beam 201, first platform column 202, T-shaped corbel 203, first platform temporary connecting pole frame 204, auxiliary support rod 205;

[0032] T-shaped corbel 203 is welded on steel column 100, and first platform lifting beam 201 is arranged above T-shaped corbel 203, a group of hydraulic hoist 300 with steel strand is installed on first platform lifting beam 201, and T-shaped corbel 203 is connected with first platform lifting beam 201 through two first platform columns 202 and one auxiliary support rod 205.

[0033] First platform temporary connecting pole frame 204 is installed on the corner of truss 800 through welding ball, and lifting point is arranged on first platform temporary connecting pole frame 204, and hydraulic hoist 300 on first platform lifting beam 201 is connected through steel strand.

[0034] As shown in Figure 3 And Figure 4 Center lifting platform 600 is arranged in the center position of truss 800, for lifting the center of truss 800, including second platform lifting beam 601, second platform column 602, X-shaped corbel 603, second platform contact rod 604, second platform distribution beam 605, second platform temporary connecting pole frame 606.

[0035] The X-shaped bracket 603 is welded on the steel column 100, and the second platform lifting beam 601 is arranged above the X-shaped bracket 603, and two groups of hydraulic jacks 300 with steel wire ropes are arranged on the second platform lifting beam 601.

[0036] The second platform column 602 is provided with four second platform columns 602, one end of each of the four second platform columns 602 is arranged on the X-shaped forked end of the X-shaped bracket 603, and the other end of each of the four second platform columns 602 is connected by the second platform distribution beam 605, and the two groups of second platform distribution beams 605 are connected with the second platform lifting beam 601.

[0037] The second platform temporary connecting rod frame 606 is provided with six second platform temporary connecting rod frames 606, which are arranged on the center of the net rack 800 through welding balls, and the second platform temporary connecting rod frame 606 is provided with a lifting point, and the lifting point is connected with the hydraulic jack 300 on the second platform lifting beam 601 through the steel wire rope.

[0038] As shown in Figure 5 and Figure 6 , the edge lifting platform 700 is arranged on the edge of the net rack 800, and is used for lifting the edge of the net rack 800, and includes a third platform lifting beam 701, a main platform column 702, a Y-shaped bracket 703, an auxiliary platform column 704, a third platform connecting rod 705, a third platform distribution beam 706, and a third platform temporary connecting rod frame 707.

[0039] The Y-shaped bracket 703 is welded on the steel column 100, and the third platform lifting beam 701 is arranged above the Y-shaped bracket 703, and one group of hydraulic jacks 300 with steel wire ropes are arranged on the third platform lifting beam 701, and the Y-shaped bracket 703 is connected with the third platform lifting beam 701 through three third platform columns. The third platform column includes a main platform column 702 and two auxiliary platform columns 704, one end of each of the two auxiliary platform columns 704 is connected by the third platform distribution beam 706 and arranged at the bottom of the third platform lifting beam 701, and the other end of each of the two auxiliary platform columns 704 is arranged at the two ends of the Y-shaped fork of the Y-shaped bracket 703; and the two ends of the main platform column 702 are connected with the third platform lifting beam 701 and the Y-shaped end of the Y-shaped bracket 703, respectively.

[0040] The third platform temporary connecting rod frame 707 is arranged on the edge of the net rack 800 through the welding ball, and the third platform temporary connecting rod frame 707 is provided with a lifting point, and the lifting point is connected with the hydraulic jack 300 on the third platform lifting beam 701 through the steel wire rope.

[0041] The temporary connecting rod frame is arranged on the net rack 800, the hydraulic lifters 300 corresponding to the edge corner lifting platform 200, the center lifting platform 600 and the edge lifting platform 700 are connected to the temporary connecting rod frames at the edge corner, the center and the edge of the net rack 800 through the steel strands respectively, the temporary connecting rod frames are lifted by the hydraulic lifters 300 through the steel strands, the edge corner, the center and the edge of the net rack 800 are taken as the stress points for supporting the net rack 800, and the edge corner, the center and the edge of the net rack 800 are lifted synchronously, so that the whole net rack 800 is lifted.

[0042] The net rack 800 is provided with a plurality of connecting rod frames 500 and supplemental rod frames 400; the plurality of connecting rod frames 500 and the supplemental rod frames 400 are connected to the net rack 800 through the welding balls and the bolt balls to be integrated. The plurality of connecting rod frames 500 and the supplemental rod frames 400 are used to bear the gravity of the net rack 800 and are arranged on the plurality of steel columns 100 after the temporary connecting rod frames are removed.

[0043] Further, in the embodiment, the second platform connecting rods 604 are connected between the two groups of second platform distribution beams 605 to provide stable connection. The main platform column 702 and the two auxiliary platform columns 704 of the third platform column are connected through the V-shaped third platform connecting rods 705 to provide stable connection.

[0044] Further, in the embodiment, the lifting beam is provided with a U-shaped opening, the outlet of the steel strand at the lower end of the hydraulic lifter 300 is aligned with the lifting center line of the U-shaped opening of the lifting beam, and the hydraulic lifter 300 is fixed above the U-shaped opening of the lifting beam through four welding clamping plates.

[0045] The following is described in detail in combination with specific parameters:

[0046] Taking a large steel structure industrial plant as an example, the lifted structure and the supporting structure are simulated and analyzed by using a general finite element analysis software; it is concluded that the stress, deformation and supporting reaction force all meet the requirements of relevant specifications.

[0047] The first lifting platform beam 201 of the edge corner lifting platform 200 is selected to be a box section of B250*200*12*12, the T-shaped bracket 203 is selected to be a box section of B250*200*12*12, the first platform column 202 is selected to be a steel pipe of P159*8, and the auxiliary support rod 205 is selected to be a steel pipe of P114*4.

[0048] The second lifting platform beam 601 of the center lifting platform 600 is selected to be a box section of B400*350*14*14, the X-shaped bracket 603 is selected to be a box section of B400*250*12*12, the second platform distribution beam 605 is selected to be a box section of B400*250*12*12, the second platform column 602 is selected to be a steel pipe of P219*12, and the second platform connecting rod 604 is selected to be a steel pipe of P114*4.

[0049] The third lifting platform beam 701 of the edge lifting platform 700 is selected as a box section of B400*250*12*12, the Y-shaped bracket 703 is selected as a box section of B250*200*12*12, the third platform distribution beam 706 is selected as a box section of B250*200*12*12, the main platform stand column 702 and the auxiliary platform stand column 704 are both selected as steel pipes of P180*10, and the third platform connecting rod 705 is selected as a steel pipe of P114*4.

[0050] The steel material used by the corner lifting platform 200, the center lifting platform 600 and the edge lifting platform 700 is Q355B material, and the column inner stiffening plate is 16mm thick. Each component adopts a fusion welding seam, and the welding seam is second grade; the stiffening plate and each component are connected by double-face fillet welding, and the welding leg size is 7mm.

[0051] The utility model discloses a product specific implementation: the platform is welded on the ground, and the whole is hoisted to the upper of steel column bracket, installs the hydraulic hoist on the lifting beam, and the steel strand is from the bottom of the hydraulic hoist and is penetrated to the top and is penetrated, makes every bundle steel strand bottom level, and the upper end of the steel strand that is penetrated is fixed through the chuck and the anchor piece, and then the lower end of the steel strand bundle is penetrated into the hoisting point bottom anchor structure of the corresponding temporary connecting rod frame directly below, is adjusted and locked, and the bottom anchor is vertically corresponding, concentric installation with the lifting center line of the hydraulic hoist and the lifting beam directly above, the hoisting point structure opening. The hydraulic hoist 300 drives the steel strand to lift the corresponding temporary connecting rod frame, thereby lifting the whole of the net rack 800.

[0052] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0053] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A lifting platform for hydraulic synchronous lifting of steel structures, used for lifting a space truss (800) to the top of a plurality of steel columns (100) and fixing; characterized in that, The lifting platform is arranged on the top of each of the steel columns (100); The lifting platform is arranged on the top of each of the steel columns (100); The net rack (800) is provided with a plurality of connecting rod frames (500) and supplemental rod frames (400); the connecting rod frames (500) and the supplemental rod frames (400) are connected with the net rack (800) integrally, and are used for bearing the gravity of the net rack (800) and being arranged on the steel columns (100) after the temporary connecting rod frame is dismounted.

2. The lifting platform for hydraulic synchronous lifting of steel structures according to claim 1, characterized in that, The steel columns (100) are defined as corner steel columns, center steel columns and edge steel columns according to the matching positions of the steel columns (100) with the shape of the net rack (800); The lifting platform includes corner lifting platforms (200), center lifting platforms (600) and edge lifting platforms (700) arranged on the top of the corner steel columns, the center steel columns and the edge steel columns respectively; The temporary connecting rod frames are arranged at the corners, the center and the edges of the net rack (800) respectively; The corresponding hydraulic lifters (300) of the corner lifting platforms (200), the center lifting platforms (600) and the edge lifting platforms (700) are connected with the temporary connecting rod frames of the corners, the center and the edges of the net rack (800) through steel wires respectively, and the net rack (800) is synchronously lifted through the corresponding hydraulic lifters (300) of the corner lifting platforms (200), the center lifting platforms (600) and the edge lifting platforms (700), so that the corners, the center and the edges of the net rack (800) are used as the stress points for supporting the net rack (800) respectively, and the net rack (800) is synchronously lifted as a whole.

3. A lifting platform for hydraulic synchronized lifting of steel structures according to claim 2, characterized in that, The corner lifting platforms (200), the center lifting platforms (600) and the edge lifting platforms (700) each include a lifting beam, a bracket and a column; The bracket is welded on the steel column (100), the lifting beam is arranged above the bracket, and the column is arranged between the bracket and the lifting beam; The hydraulic lifter (300) is arranged on the lifting beam, and the hydraulic lifter (300) is connected with the temporary connecting rod frame through a steel wire.

4. The lifting platform for hydraulic synchronized lifting of steel structures according to claim 2, characterized in that, The corner lifting platform (200) is arranged at the corner of the net rack (800) and is used for lifting the corner of the net rack (800), and includes a first platform lifting beam (201), a first platform column (202), a T-shaped bracket (203), a first platform temporary connecting rod frame (204) and an auxiliary supporting rod (205). The T-shaped bracket (203) is welded on the steel column (100), and a first platform lifting beam (201) is arranged above the T-shaped bracket (203), a group of hydraulic jacks (300) provided with steel strands are arranged on the first platform lifting beam (201), and the T-shaped bracket (203) is connected with the first platform lifting beam (201) through two first platform vertical columns (202) and an auxiliary support rod (205); The first platform temporary connecting rod frame (204) is arranged on the corners of the net rack (800) through a welding ball, and a lifting point is arranged on the first platform temporary connecting rod frame (204), and the lifting point is connected with the hydraulic jacks (300) on the first platform lifting beam (201) through steel strands.

5. The lifting platform for hydraulic synchronized lifting of steel structures according to claim 2, characterized in that, The center lifting platform (600) is arranged at the center position of the net rack (800) and is used for lifting the center of the net rack (800), and comprises a second platform lifting beam (601), a second platform vertical column (602), an X-shaped bracket (603), a second platform connecting rod (604), a second platform distribution beam (605) and a second platform temporary connecting rod frame (606); The X-shaped bracket (603) is welded on the steel column (100), and a second platform lifting beam (601) is arranged above the X-shaped bracket (603), and two groups of hydraulic jacks (300) provided with steel strands are arranged on the second platform lifting beam (601); The second platform vertical column (602) is provided with four second platform vertical columns (602), one end of each of the four second platform vertical columns (602) is arranged on the X-shaped forked end of the X-shaped bracket (603), the other end of each of the four second platform vertical columns (602) is connected with the second platform distribution beam (605), and two groups of second platform distribution beams (605) are connected with the second platform lifting beam (601); The second platform temporary connecting rod frame (606) is provided with six second platform temporary connecting rod frames (606), the second platform temporary connecting rod frame (606) is arranged above the lifting point position of the central steel column of the net rack (800) through a welding ball, a lifting point is arranged on the second platform temporary connecting rod frame (606), and the lifting point is connected with the hydraulic jacks (300) on the second platform lifting beam (601) through steel strands.

6. A lifting platform for hydraulic synchronized lifting of steel structures according to claim 5, characterized in that, The second platform connecting rod (604) is arranged between the two groups of second platform distribution beams (605) to provide stable connection.

7. The lifting platform for hydraulic synchronized lifting of steel structures according to claim 2, characterized in that, The edge lifting platform (700) is arranged at the edge of the net rack (800) and is used for lifting the edge of the net rack (800), and comprises a third platform lifting beam (701), a main platform vertical column (702), a Y-shaped bracket (703), an auxiliary platform vertical column (704), a third platform connecting rod (705), a third platform distribution beam (706) and a third platform temporary connecting rod frame (707). The Y-shaped bracket (703) is welded on the steel column (100), and a third platform lifting beam (701) is arranged above the Y-shaped bracket (703), and a group of hydraulic jacks (300) with steel strands are arranged on the third platform lifting beam (701), and the Y-shaped bracket (703) is connected with the third platform lifting beam (701) through three third platform columns; The third platform temporary connecting pole frame (707) is arranged on the edge of the net rack (800) through a welding ball, and a lifting point is arranged on the third platform temporary connecting pole frame (707), and the lifting point is connected with the hydraulic jack (300) on the third platform lifting beam (701) through a steel strand.

8. A lifting platform for hydraulic synchronized lifting of steel structures according to claim 7, characterized in that, The three third platform columns include a main platform column (702) and two auxiliary platform columns (704), one end of the two auxiliary platform columns (704) is connected through a third platform distribution beam (706) and is arranged at the bottom of the third platform lifting beam (701), and the other end of the two auxiliary platform columns (704) is arranged at the two ends of the Y-shaped fork of the Y-shaped bracket (703); and the two ends of the main platform column (702) are respectively connected with the third platform lifting beam (701) and one end of the Y-shaped bracket (703). The main platform column (702) and the two auxiliary platform columns (704) of the third platform column are connected through a V-shaped third platform connecting rod (705) for providing stable connection.

9. The lifting platform for hydraulic synchronized lifting of steel structures according to claim 3, characterized in that, A U-shaped opening is arranged on the lifting beam, the outlet of the steel strand at the lower end of the hydraulic jack (300) is aligned with the lifting center line of the U-shaped opening on the lifting beam, and the hydraulic jack (300) is fixed above the U-shaped opening of the lifting beam through four clamping plates.

10. The lifting platform for hydraulic synchronized lifting of steel structures according to claim 1, characterized in that, The connecting pole frame (500) and the supplementary pole frame (400) each include at least three connecting poles, and the connecting poles are connected with the net rack (800) through welding balls and bolt balls.

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