An installation device and installation method for steel beam-column of prefabricated building

Abstract

The present invention provides an installation device and installation method for steel beam-columns of prefabricated buildings, belonging to the technical field of beam-column installation devices. The installation device for steel beam-columns of prefabricated buildings includes: climbing components symmetrically arranged on two side columns, and a lifting component for lifting a cross beam. The climbing component includes a first clamping module and a second clamping module distributed vertically. The first clamping module and the second clamping module are connected by a hydraulic driving component. The hydraulic driving component includes a third hydraulic cylinder fixed to the bottoms of a second outer support block and a second inner support block. The output end of the third hydraulic cylinder is connected with a vertically telescopic push rod. The push rod penetrates through the second outer support block and the second inner support block and is fixedly connected with a first outer support block and a first inner support block. By using this device, it is not necessary to repeatedly adjust its position through a hook lock. Compared with hoisting using a crane in the traditional scheme, the installation time of beam-columns is effectively shortened, and the installation efficiency of steel beam-columns is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of beam-column installation equipment, and particularly relates to an installation equipment and installation method for steel beam-columns of prefabricated buildings. Background Art

[0002] During the construction process of prefabricated buildings, the installation of steel beam-columns is one of the key links. Traditional beam-column installation methods mainly rely on large lifting equipment, such as tower cranes, to hoist prefabricated steel beams and steel columns to designated positions, and then perform welding or bolt connection. However, this method has many problems: on the one hand, the rental cost of large lifting equipment is high, and in complex terrains or narrow sites, the movement and positioning of the equipment are extremely inconvenient, severely restricting the construction progress; on the other hand, the traditional hoisting method highly depends on the skills of operators, and it is easy to cause problems such as deviation in the installation angle and position of beam-columns due to human factors, affecting the stability and safety of the structure. In addition, according to the construction drawings and hoisting plan, the beam-columns are hoisted to the designated positions and then welded. This process requires the use of slings to continuously adjust the positions of the beam-columns, which takes a long time and results in low efficiency of beam-column installation.

[0003] Therefore, developing an installation equipment for steel beam-columns of prefabricated buildings that can adapt to different construction environments, is easy to operate, has precise positioning, and can effectively reduce costs has become an urgent technical problem to be solved in the current field of prefabricated building construction. Based on this, the installation equipment for steel beam-columns of prefabricated buildings of the present invention aims to overcome the deficiencies in the prior art and provide a strong guarantee for the efficient and safe construction of prefabricated buildings. Summary of the Invention

[0004] The purpose of the present invention is to provide an installation equipment and installation method for steel beam-columns of prefabricated buildings, aiming to solve the problem in the prior art that when using lifting equipment such as cranes to hoist beam-columns to designated positions according to construction drawings and hoisting plans and then perform welding, this process requires the use of slings to continuously adjust the positions of the beam-columns, which takes a long time and results in low efficiency of beam-column installation.

[0005] To achieve the above purpose, on the one hand, the present invention provides the following technical solution:

[0006] An installation equipment for steel beam-columns of prefabricated buildings, which includes: a climbing component symmetrically arranged on two side columns, and a lifting component for lifting the cross beam;

[0007] The climbing component includes a first clamping module and a second clamping module distributed vertically, and the first clamping module and the second clamping module are connected by a hydraulic driving component;

[0008] The first clamping module includes a first mounting block, a first outer support block and a first inner support block provided on both sides thereof. A first clamping unit capable of horizontal expansion and contraction is provided on the first mounting block. The second clamping module includes a second mounting block, a second outer support block and a second inner support block provided on both sides thereof. A second clamping unit capable of horizontal expansion and contraction is provided on the second mounting block;

[0009] The hydraulic drive assembly includes a third hydraulic cylinder fixed to the bottoms of the second outer support block and the second inner support block. The output end of the third hydraulic cylinder is connected to a telescopic rod capable of vertical expansion and contraction. The telescopic rod penetrates through the second outer support block and the second inner support block and is fixedly connected to the first outer support block and the first inner support block;

[0010] The lifting assembly includes a concave plate bridging the climbing mechanisms on both sides and an adjustable positioning assembly provided on the concave plate.

[0011] As a preferred solution of the present invention, the first clamping unit includes a first hydraulic cylinder fixedly connected to the side wall of the first mounting block and a first clamping block connected to the end of the piston rod of the first hydraulic cylinder; the second clamping unit includes a second hydraulic cylinder fixedly connected to the side wall of the second mounting block and a second clamping block connected to the end of the piston rod of the second hydraulic cylinder; anti-slip lines are provided on the working surfaces of the first clamping block and the second clamping block.

[0012] As a preferred solution of the present invention, a first connecting rod and a second connecting rod are respectively fixedly connected between the first outer support block and the second outer support block on both sides of the same column; reinforcing rods are fixedly connected to the side surfaces of the cylinders of multiple third hydraulic cylinders.

[0013] As a preferred solution of the present invention, first limiting rods are provided at the four corners of the first clamping block and are slidably inserted into the first mounting block; second limiting rods are provided at the four corners of the second clamping block and are slidably inserted into the second mounting block.

[0014] As a preferred solution of the present invention, the adjustable positioning assembly includes a first positioning block fixedly connected to the inner side surface of the groove of the concave plate. One end of the screw rod is rotatably connected to the first positioning block, and the other end of the screw rod is threadedly connected to a rotating base. The rotating base is rotatably connected to a rotating cylinder extending from a second positioning block, and a frictional force is generated when the rotating cylinder rotates in the rotating base.

[0015] As a preferred solution of the present invention, an angle adjustment assembly is provided between the two second positioning blocks in the groove of the concave plate. An adjustment hole through which an adjustment screw passes is provided through one side of the accommodation cavity, and a limiting groove is provided on the side surface of the accommodation cavity opposite to the adjustment hole.

[0016] As a preferred embodiment of the present invention, the angle adjustment assembly is received in the accommodation cavity 32 opened in the concave plate. The angle adjustment assembly includes an adjustment screw, an upper plate, a lower plate, a screw tail seat, an adjustment seat, an adjustment motor, and a support rod. The upper plate is rotatably connected to the lower plate. Two upper plate support seats extend along the length edge of the lower plate. One end of the adjustment screw is rotatably connected to the screw tail seat after being threadedly connected to the adjustment seat, and the other end is fixedly connected to the adjustment motor. Both ends of the support rod are rotatably connected to the adjustment seat and the bottom of the upper plate respectively.

[0017] As a preferred embodiment of the present invention, a reflective sheet is provided on the outer surface of the first inner support block; the cross sections of the first clamping block and the second clamping block are trapezoidal structures.

[0018] On the other hand, the present invention provides an installation method for an installation device of a steel beam-column of a prefabricated building steel structure, including the following steps:

[0019] S1. Respectively arrange two sets of climbing components on the surfaces of two columns, place the cross beam in the adjustable positioning components of two concave plates, rotate the screw to adjust the distance between the first positioning block and the second positioning block, so that the surface of the second positioning block contacts the surface of the cross beam, and limit the position of the cross beam by the adjustable positioning components;

[0020] S2. Start the second hydraulic cylinder to drive the second clamping block to clamp the column, and control the third hydraulic cylinder to lift the telescopic rod to drive the first driving component and the lifting component to move upward;

[0021] S3. When the first clamping module reaches the predetermined height, start the first hydraulic cylinder to drive the first clamping block to clamp the column, release the clamping of the second clamping block and contract the third hydraulic cylinder to lift the second clamping module;

[0022] S4. Repeat steps S2 - S3 to climb in a cycle until the cross beam reaches the installation position and then carry out welding and fixing.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. In the present invention, by using this device to drive the cross beam to move up to the target position, during the process of the cross beam moving to the target welding position, there is no need to repeatedly adjust its position through a hook lock. Compared with the traditional method of using a crane for hoisting, there is no need to repeatedly adjust the position of the beam-column, effectively shortening the installation time of the beam-column and improving the installation efficiency of the steel beam-column.

[0025] 2. In the present invention, the adjustable positioning components and the angle adjustment components can accurately adjust the installation angle and position of the cross beam, making the connection between the cross beam and the column more precise and improving the stability of the overall structure.

[0026] 3. In the present invention, for the case where an inclined crossbeam needs to be installed, the device can generate an inclination angle through differential lifting and finally complete fine adjustment through a synchronous lifting mode, meeting the inclined installation positions of the crossbeam under different design requirements and improving the versatility and adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0028] Figure 1 is the first assembled three-dimensional schematic diagram of the present invention;

[0029] Figure 2 is the second assembled three-dimensional schematic diagram of the present invention;

[0030] Figure 3 is the top view of the present invention;

[0031] Figure 4 is of the present invention Figure 3 the partial enlarged view at A in;

[0032] Figure 5 is of the present invention Figure 4 detail drawing of the adjustable positioning assembly;

[0033] Figure 6 is the front view of the present invention;

[0034] Figure 7 is the top view of the present invention;

[0035] Figure 8 is the first cross-sectional view of the present invention;

[0036] Figure 9 is the second cross-sectional view of the present invention;

[0037] Figure 10 is the partial three-dimensional view of the present invention;

[0038] Figure 11 is the front view of the angle adjustment assembly of the present invention;

[0039] Figure 12 is the three-dimensional view of the angle adjustment assembly of the present invention.

[0040] In the figure: 1, column; 2, first clamping block; 3, first mounting block; 4, first hydraulic cylinder; 5, first outer support block; 501, first inner support block; 6, first connecting rod; 8, telescopic rod; 9, second clamping block; 10, second mounting block; 11, second hydraulic cylinder; 12, third hydraulic cylinder; 13, second outer support block; 1301, second inner support block; 14, second connecting rod; 15, reinforcing rod; 16, reflective sheet; 17, concave plate; 18, first positioning block; 20, second positioning block; 2001, rotating cylinder; 21, screw; 22, cross beam; 23, rotating base; 24, upper plate; 25, support rod; 26, adjusting motor; 27, screw tail seat; 28, adjusting screw; 29, adjusting seat; 30, lower plate; 31, limiting groove; 32, accommodating cavity; 33, adjusting hole. Detailed implementation manner

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0042] Please refer to Figure 1 , Figure 2 , Figure 6 and Figure 8, this embodiment provides an installation device for steel structure beams and columns of prefabricated buildings, which is used for the installation between column 1 and crossbeam 22. Its structure includes: a climbing component symmetrically arranged on the two side columns 1, and a lifting component for lifting the crossbeam 22; the climbing mechanism includes a first clamping module and a second clamping module distributed up and down, and the first clamping module and the second clamping module are connected by a hydraulic driving component; through the climbing mechanism and the hydraulic driving component, a stable climbing action can be achieved, and the safety and reliability of the equipment during climbing can be ensured. The first clamping module includes a first mounting block 3 and first outer support blocks 5 and first inner support blocks 501 arranged on both sides thereof. A first clamping unit that can be horizontally telescopic is provided on the first mounting block 3. The second clamping module includes a second mounting block 10 and second outer support blocks 13 and second inner support blocks 1301 arranged on both sides thereof. A first clamping module that can be horizontally telescopic is provided on the second mounting block 10; the hydraulic driving component includes a third hydraulic cylinder 12 fixed to the bottoms of the second outer support block 13 and the second inner support block 1301. The output end of the third hydraulic cylinder 12 is connected with a telescopic rod 8 that can be vertically telescopic. The telescopic rod 8 penetrates through the second outer support block 13 and the second inner support block 1301 and is fixedly connected with the first outer support block 5 and the first inner support block 501; through the cooperation of the third hydraulic cylinder 12 and the telescopic rod 8, the hydraulic driving component realizes the relative movement between the first clamping module and the second clamping module, thereby driving the climbing of the entire equipment. The lifting component includes a concave plate 17 bridging the two side climbing mechanisms and an adjustable positioning component arranged on the concave plate 17.

[0043] Please refer to Figure 2 and Figure 7 , the first clamping module includes a first hydraulic cylinder 4 fixedly connected to the side wall of the first mounting block 3 and a first clamping block 2 connected to the end of the piston rod of the first hydraulic cylinder 4; the second clamping module includes a second hydraulic cylinder 11 fixedly connected to the side wall of the second mounting block 10 and a second clamping block 9 connected to the end of the piston rod of the second hydraulic cylinder 11; through the drive of the hydraulic cylinder, the clamping action of the clamping block is realized, and the operation is simple and the clamping force is stable. Anti-slip patterns are provided on the working surfaces of the first clamping block 2 and the second clamping block 9, which can effectively increase the friction between the clamping block and the column and prevent slipping during the clamping process.

[0044] Please refer to Figure 1 and Figure 2, between the first outer support block 5 and the second outer support block 13 on both sides of the same column 1, a first connecting rod 6 and a second connecting rod 14 are fixedly connected respectively; the connecting functions of the first connecting rod 6 and the second connecting rod 14 connect the outer support blocks on the left and right sides of the same column into a whole, enabling the outer support blocks on both sides to constrain and support each other when stressed. When a relatively large jacking force is applied to the first outer support block on one side, part of the force is transmitted to the other side through the connecting rod, making the forces on both sides more uniform, thereby maintaining the overall synchronization. A reinforcing rod 15 is fixedly connected to the side surface of the cylinder body of multiple third hydraulic cylinders 12, and the reinforcing rod 15 connects the two third hydraulic cylinders 12 into a whole. This ensures that during the jacking process, the two hydraulic cylinders can work together, avoiding structural instability caused by uneven force on a single hydraulic cylinder.

[0045] Please refer to Figure 2 , Figure 7 and Figure 9 , the four corners of the first clamping block 2 are provided with first limiting rods that are slidably inserted into the first mounting block 3; the four corners of the second clamping block 9 are provided with second limiting rods that are slidably inserted into the second mounting block 10. The first limiting rods and the second limiting rods limit the movement ranges of the first clamping block 2 and the second clamping block 9, preventing excessive displacement or deviation during the clamping process, and ensuring the accuracy and stability of the clamping action.

[0046] Please refer to Figure 3 , Figure 4 and Figure 5 , the adjustable positioning assembly includes a first positioning block 18 fixedly connected to the inner side surface of the groove of the concave plate 17. One end of a screw rod 21 is rotatably connected to the first positioning block 18, and the other end of the screw rod 21 is threadedly connected to a rotating base 23. The rotating base 23 is rotatably connected to a rotating cylinder 2001 extending from a second positioning block 20, and a frictional force is generated when the rotating cylinder 2001 rotates within the rotating base 23.

[0047] Please refer to Figure 7 , Figure 10 , Figure 11 , Figure 12, an angle adjustment assembly is arranged between two second positioning blocks 20 in the groove of the concave plate 17. The angle adjustment assembly is received in the accommodation cavity 32 opened in the concave plate 17. When the cross beam 22 is placed horizontally, the upper plate 24 of the angle adjustment assembly is located below the cross beam 22 and the top is flush with the opening of the accommodation cavity 32. The angle adjustment assembly includes an adjustment screw 28, an upper plate 24, a lower plate 30, a screw tail seat 27, an adjustment seat 29, an adjustment motor 26, and a support rod 25. The upper plate 24 and the lower plate 30 are rotatably connected. Two support seats of the upper plate 24 extend along the length edge of the lower plate 30. The height of the support seats of the upper plate 24 is higher than the height of the adjustment seat 29, which is used to prevent the upper plate 24 from contacting the adjustment seat 29. An adjustment hole 33 through which the adjustment screw 28 passes is provided through one side of the accommodation cavity 32. A limiting groove 31 is opened on the side surface of the accommodation cavity 32 opposite to the adjustment hole 33. The screw tail seat 27 is installed in the limiting groove 31. One end of the adjustment screw 28 is threadedly connected to the adjustment seat 29 and the other end is rotatably connected to the screw tail seat 27, and the other end is fixedly connected to the adjustment motor 26. Both ends of the support rod 25 are rotatably connected to the adjustment seat 29 and the bottom of the upper plate 24 respectively. When fine adjustment of the rotation of the cross beam 22 is required, the adjustment motor 26 can be controlled to drive the adjustment screw 28 to rotate, so as to move the adjustment seat 29. The movement of the adjustment seat 29 will lift the upper plate 24 through the support rod 25, and then lift one side of the cross beam 22. After the upper plate 24 is lifted, it will push one side of the cross beam 22 to move upward, causing the cross beam 22 to tilt, realizing the adjustment of the installation angle of the cross beam 22. When the cross beam 22 reaches the designed installation angle, the adjustment motor 26 is controlled to stop. Due to the tilt of the cross beam 22, the tilted side surface of one side thereof will contact the surface of one of the second positioning blocks 20. Under the action of the gravity of the cross beam 22, the second positioning block 20 will rotate in the direction closer to the side surface of the cross beam 22 until the surface of the second positioning block 20 is completely attached to the side surface of the cross beam 22. Then, the other second positioning block 20 is adjusted by screwing the screw 21, so that its surface also fits the side surface of the cross beam 22 through rotation, thereby completing the limit fixation of the installation angle of the cross beam 22 and ensuring that the angle position of the cross beam 22 is stable when it is installed with the column 1.

[0048] Please refer to Figure 6 and Figure 9 , a reflective sheet 16 is provided on the outer surface of the first inner support block 501; the three-dimensional coordinates of the reflective sheet are continuously collected by a laser tracker or a total station with an accuracy of ±0.1 mm, and the designed position and the measured position are compared in real time. By comparing the Z coordinate elevation differences of the two reflective sheets 16 at both ends, the levelness of the cross beam can be quickly and accurately judged. The cross sections of the first clamp 2 and the second clamp 9 are trapezoidal structures.

[0049] It should be noted that when the two sets of climbing components are lifted synchronously, the four sets of second hydraulic cylinders 11 are pressurized to establish the basic clamping, the first hydraulic cylinder 4 is pre-pressed to the unlocked state, the lifting component loads the cross beam 22, the levelness of the concave plate 17 is verified, and after setting the target lifting speed, the third hydraulic cylinders 12 on both sides are started synchronously. A displacement encoder is installed at the end of the piston rod of the third hydraulic cylinder 12 to monitor the linear displacement of the telescopic rod 8, reflecting the actual stroke of the third hydraulic cylinder 12 during jacking. Through the real-time data of the displacement encoder, the PLC controller dynamically adjusts the speed of the third hydraulic cylinder 12 to ensure that the synchronous error on both sides is ≤±0.5m during symmetric lifting. After jacking a certain height, it pauses for 0.5s to allow the structure to naturally rebound and eliminate the position deviation caused by the elastic deformation of the structure. Through the alternating locking of the first and second clamping modules, a "climbing - anchoring - following" cycle is formed until the cross beam 22 reaches the design elevation. The system is set with an emergency braking mode. When the displacement deviation on both sides exceeds the preset threshold, the four sets of first hydraulic cylinders 4 are instantaneously pressed to the overpressure mode to lock the climbing components.

[0050] Furthermore, when an inclined cross beam 22 needs to be installed between the two columns 1, first, the initial stroke uses synchronous lifting to ensure the positioning reference. The middle stroke switches to the differential lifting mode to generate an inclination angle. When the actual height difference enters the range of ±2mm, it returns to the synchronous lifting mode and is finely adjusted at a low speed until the inclination error ≤0.3 degrees. Taking the differential lifting in the middle stroke with the left climbing as an example, the second hydraulic cylinder 11 on the right side of the column 1 is pressurized to maintain the overpressure mode, the first hydraulic cylinder 4 on the right side is released to the standby pressure, and the third hydraulic cylinder 12 on the right side is switched to the hydraulic locking state to keep the right climbing component locked. The second hydraulic cylinder 11 on the left side of the column 1 maintains the clamping pressure, the first hydraulic cylinder 4 on the left side is released to the standby pressure, and the third hydraulic cylinder 12 on the left side is jacked up at the target lifting speed. During the jacking process, the first clamping unit and the first clamping module on the left side are alternately locked until the height difference between the two ends of the cross beam 22 reaches the target value, causing the cross beam 22 to generate the designed inclination angle for inclined installation.

[0051] Even further, when an inclined cross beam 22 needs to be installed between the two columns 1, first, the initial stroke uses the synchronous lifting mode to ensure the positioning reference. The middle stroke switches to the differential lifting mode to generate an inclination angle. When the actual height difference enters the range of ±2mm, it returns to the synchronous lifting mode and enters the process of final synchronous fine adjustment with low-speed fine adjustment until the inclination error ≤0.3 degrees. In the differential lifting mode of the middle stroke, the designed inclination angle θ of the inclined installation of the cross beam is input, the target height difference is calculated, the third hydraulic cylinder 12 on the high side is accelerated to 1.2 times the basic speed, and the third hydraulic cylinder 12 on the low side is decelerated to 0.8 times the basic speed. By jacking more on the high side and less on the low side per unit time, the height difference is accumulated to achieve the designed inclination angle of the inclined installation of the cross beam 22.

[0052] Specifically, before installing the inclined crossbeam, an adjustable limit stop needs to be installed between the concave plate 17 on the low side and the column 1. The material of the stop is a polyurethane-steel composite structure, and the preset gap between the adjustable limit stop and the column 1 is (L: length of the crossbeam; θ: designed inclination angle; D: diameter of the column). The position of the adjustable limit stop is finely adjusted by a screw (adjustment accuracy ±0.5 mm).

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An installation device for steel beams and columns of prefabricated buildings, characterized in that Including: Climbing components symmetrically arranged on both side columns (1) and a lifting component for lifting the cross beam (22); The climbing component includes a first clamping module and a second clamping module distributed up and down, and the first clamping module and the second clamping module are connected by a hydraulic driving component; The first clamping module includes a first mounting block (3) and first outer support blocks (5) and first inner support blocks (501) arranged on both sides thereof. A first clamping unit that can be telescopically extended horizontally is provided on the first mounting block (3). The second clamping module includes a second mounting block (10) and second outer support blocks (13) and second inner support blocks (1301) arranged on both sides thereof. A second clamping unit that can be telescopically extended horizontally is provided on the second mounting block (10); The hydraulic driving component includes a third hydraulic cylinder (12) fixed to the bottoms of the second outer support block (13) and the second inner support block (1301). The output end of the third hydraulic cylinder (12) is connected to a telescopic rod (8) that can be vertically telescoped. The telescopic rod (8) penetrates through the second outer support block (13) and the second inner support block (1301) and is fixedly connected to the first outer support block (5) and the first inner support block (501); The lifting component includes a concave plate (17) bridging the climbing mechanisms on both sides and an adjustable positioning component provided on the concave plate (17). The adjustable positioning component includes a first positioning block (18) fixedly connected to the inner side surface of the groove of the concave plate (17). One end of a screw rod (21) is rotatably connected to the first positioning block (18). The other end of the screw rod (21) is threadedly connected to a rotating base (23). A rotating cylinder (2001) extending from a second positioning block (20) is rotatably connected to the rotating base (23). When the rotating cylinder (2001) rotates in the rotating base (23), a frictional force will be generated. An angle adjustment component is arranged between the two second positioning blocks (20) in the groove of the concave plate (17). The angle adjustment component is received in a receiving cavity (32) opened on the concave plate (17). An adjustment hole (33) through which an adjustment screw rod (28) passes is provided through one side of the receiving cavity (32). A limiting groove (31) is opened on the side surface of the receiving cavity (32) opposite to the adjustment hole (33). The angle adjustment component includes an adjustment screw rod (28), an upper plate (24), a lower plate (30), a screw rod tail seat (27), an adjustment seat (29), an adjustment motor (26), and a support rod (25). The upper plate (24) and the lower plate (30) are rotatably connected to each other. Two support seats for the upper plate (24) extend along the length edge of the lower plate (30). After the adjustment screw rod (28) is threadedly connected to the adjustment seat (29), one end thereof is rotatably connected to the screw rod tail seat (27), and the other end thereof is fixedly connected to the adjustment motor (26). The two ends of the support rod (25) are respectively rotatably connected to the adjustment seat (29) and the bottom of the upper plate (24).

2. The installation equipment for steel beam and column of an assembled building according to claim 1, characterized in that: The first clamping unit comprises a first hydraulic cylinder (4) fixedly connected to the side wall of the first mounting block (3), and a first clamping block (2) connected to the end of the piston rod of the first hydraulic cylinder (4); the second clamping unit comprises a second hydraulic cylinder (11) fixedly connected to the side wall of the second mounting block (10), and a second clamping block (9) connected to the end of the piston rod of the second hydraulic cylinder (11); the working surfaces of the first clamping block (2) and the second clamping block (9) are provided with anti-slip grooves.

3. The assembling type building steel structure beam-column installation equipment according to claim 2, wherein: A first connecting rod (6) and a second connecting rod (14) are respectively fixedly connected between the first outer supporting block (5) and the second outer supporting block (13) on both sides of the same column (1); and a plurality of reinforcing rods (15) are fixedly connected to the side surfaces of the cylinder bodies of the third hydraulic cylinders (12).

4. The assembling type building steel structure beam-column installation equipment according to claim 3, characterized in that: The first clamping block (2) has four corners provided with first limiting rods which are slidably inserted into the first mounting block (3); the second clamping block (9) has four corners provided with second limiting rods which are slidably inserted into the second mounting block (10).

5. The assembling type building steel structure beam-column installation equipment according to claim 2, characterized in that: A reflective sheet (16) is provided on the outer surface of the first inner support block (501); and the cross-sections of the first clamping block (2) and the second clamping block (9) are trapezoidal structures.

6. A method for installing steel beams and columns of prefabricated buildings, which uses a device for installing steel beams and columns of prefabricated buildings described in any one of claims 1-5, characterized in that, The steps include: S1. Two sets of climbing components are respectively arranged on the surfaces of two columns (1), and the crossbeam (22) is placed in the adjustable positioning components of the two concave plates (17). The screw (21) is screwed to adjust the distance between the first positioning block (18) and the second positioning block (20), so that the surface of the second positioning block (20) contacts the surface of the crossbeam (22), and the adjustable positioning component limits the position of the crossbeam (22); S2, start the second hydraulic cylinder (11) to drive the second clamping block (9) to clamp the column (1), and control the third hydraulic cylinder (12) to lift the telescopic rod (8) to drive the first driving assembly and the lifting assembly to move upward; S3, when the first clamping module reaches a predetermined height, the first hydraulic cylinder (4) is activated to drive the first clamping block (2) to clamp the column (1), the second clamping block (9) is released, and the third hydraulic cylinder (12) is retracted to lift the second clamping module; S4, repeating steps S2-S3 to climb in a loop until the crossbeam (22) reaches the installation position and then is welded and fixed.

7. A method for installing beams and columns of prefabricated building steel structures according to claim 6, characterized in that: A. When an oblique beam (22) needs to be installed between two columns (1), the initial stroke is firstly performed in a synchronous lifting mode to ensure the positioning reference; B. Switch to the differential lifting mode in the middle stroke to generate the inclination angle, input the design inclination angle θ of the oblique installation of the crossbeam (22), and calculate the target height difference; the third hydraulic cylinder (12) on the high side is accelerated to 1.2 times the basic speed, and the third hydraulic cylinder (12) on the low side is decelerated to 0.8 times the basic speed. The height difference is accumulated by lifting more on the high side and less on the low side per unit time; C. When the actual height difference falls within the range of ±2mm, the system returns to the synchronous lifting mode and enters the final synchronous fine-tuning process until the inclination error is ≤0.3°.

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