A three-way adjustment fixture and installation method for steel column installation

Abstract

This invention discloses a three-way adjustment fixture and installation method for steel column installation, belonging to the field of steel column installation devices. It includes: a support platform, a first telescopic rod, a second telescopic rod, and a limiting rod; two support platforms are provided; each support platform has a through hole; one support platform is fixedly installed with the first and second telescopic rods, and the other support platform is connected to the telescopic end of the second telescopic rod; the telescopic direction of the first telescopic rod is horizontal; four telescopic rods are arranged circumferentially around the through hole. Compared with the prior art, the fixture of this application is set inside the steel column for adjustment, which is safer than traditional external adjustment. This fixture adopts a fully bolted connection method, utilizing the existing bolt holes of the steel column for adjustment. The fixture uses horizontal and vertical adjustment jacks for adjustment, enabling accurate adjustment of posture, elevation, and misalignment.

Description

Technical Field

[0001] This invention relates to the field of steel column installation devices, and more specifically to a three-way adjustment fixture and installation method for steel column installation. Background Technology

[0002] The steel columns on the arch of the cross-river super bridge have rectangular box sections and are lifted and installed using cable cranes. The columns are connected by high-strength bolt joints, requiring high installation precision. To ensure smooth installation of the bridge deck beams, fine-tuning and control of the top surface of the columns are necessary. Because cable cranes are flexible spatial structures, precise column adjustment is not possible. Traditional adjustment methods involve welding L-shaped bases at the column joints and then using hand-cranked jacks for adjustment. This high-precision adjustment method requires welding work onto the column, and after adjustment, the bases must be removed for grinding and painting. However, removing the bases may cause deformation of the column ends or damage to the main column material. Furthermore, this adjustment method lacks a vertical locking device; if the column experiences eccentric pressure or lateral horizontal dead load, it may lead to instability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention proposes a three-way adjustment fixture and installation method for steel column installation. The fixture utilizes existing bolt holes at the connection nodes of the steel columns, and is connected to the column body via bolts. The fixtures themselves are also connected by bolts for easy high-altitude assembly and disassembly. Components can be assembled manually without the need for large-scale high-altitude lifting equipment. The adjustment fixture primarily employs vertical and horizontal jacks for precise adjustment. All jack tips are equipped with pressure sensors to monitor the force applied to the jacks. Simultaneously, the adjustment fixture features a vertical locking safety device. Using precision-rolled threaded steel bars, the vertical adjustment method of the fixture is locked. In the event of lateral force or bias causing column instability, this locking device effectively controls excessive column deflection, ensuring construction safety.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] The first aspect of this application proposes a three-way adjustment fixture for installing steel columns, comprising: a support platform, a first telescopic rod, a second telescopic rod, and a limiting rod; two support platforms are provided; each support platform has a through hole; one support platform is fixedly installed with the first telescopic rod and the second telescopic rod, and the other support platform is connected to the telescopic end of the second telescopic rod; the telescopic direction of the first telescopic rod is horizontal; four telescopic rods are arranged circumferentially around the through hole; limiting seats are evenly distributed circumferentially on each support platform; each limiting seat is provided with a limiting hole; two limiting seats located in the same vertical direction are provided with screws in the limiting holes; the screws are threaded to limiting blocks on both sides of the limiting holes.

[0006] Fixed connections in this application refer to connections where parts or components do not move relative to each other after installation. Common examples include using screws, splines, or wedges to fix components together. This type of connection allows for disassembly during maintenance without damaging the parts. Other methods include welding, riveting, and tenon joints. These methods require forging, sawing, or oxy-acetylene cutting for disassembly during maintenance or replacement, so the parts are generally not reusable. Rotating connections in this application refer to connections where parts or components rotate relative to a fixed component after installation. Common forms include mounting bearings on the fixed component, with the part mounted on the inner or outer ring of the bearing, allowing rotational movement via the bearing. Sliding connections in this application refer to connections where parts or components can move on a fixed component after installation.

[0007] In some embodiments, the support platform mounts the telescopic rod one via a horizontal base; the horizontal base and the telescopic rod one are connected by screws; the horizontal base includes a horizontal plate, a vertical plate, and an inclined triangular plate; the horizontal plate and the vertical plate are connected by the inclined triangular plate; the support plate is provided with a groove one; the groove one is provided with a pressure sensor; the horizontal base and the support platform are connected by screws.

[0008] In some embodiments, the support platform is equipped with the telescopic rod 2 via a vertical base 1 and a vertical base 2; the vertical base 1 is connected to the support platform with the telescopic end of the telescopic rod 2 installed thereon via screws, and the vertical base 2 is connected to another support platform via screws; a PTFE plate 1 is fixedly installed on the vertical base 1; the PTFE plate 1 is provided with a groove 2; a telescopic seat is provided on the other side of the vertical base 1; a groove 3 is provided on one side of the telescopic seat, and a movable groove is provided on the other side of the telescopic seat; the groove 2 and the groove 3 are also connected via a pressure sensor; the telescopic end of the telescopic rod 2 is located in the movable groove; the vertical base 2 is fixedly connected to the telescopic rod 2.

[0009] In some embodiments, the limiting block includes a nut, a washer, and a second PTFE plate; the nut is threadedly connected to the screw; a washer and a second PTFE plate are sequentially disposed between the nut and the limiting seat; and a third PTFE plate is fixedly disposed on the side of the limiting seat near the second PTFE plate.

[0010] In some embodiments, the support platform is connected to the steel column via a support frame; the support frame includes a vertical connecting plate, an inclined connecting plate, and a platform connecting plate; two inclined connecting plates are symmetrically fixedly connected to the platform connecting plate; a side plate is fixedly installed between the two inclined connecting plates; the vertical connecting plates are fixedly installed in a matrix on the side plates; the vertical connecting plates are evenly distributed with mounting holes; the platform connecting plate is connected to the support platform via screws.

[0011] In some embodiments, the support platform includes a platform plate one and a platform plate two; the platform plate one and the platform plate two are fixedly connected by a platform connecting plate; the platform plate two and the platform connecting plate are provided with elongated holes in a uniform matrix; the elongated holes are connected by screws; a rectangular tube is installed on the platform plate one of the support platform; the vertical plate abuts against the side wall of the rectangular tube.

[0012] In some embodiments, both telescopic rod one and telescopic rod two are jacks.

[0013] In some embodiments, the screw is a precision-rolled threaded steel bar.

[0014] The second aspect of this application discloses a method for installing steel columns, characterized in that the method employs a three-way adjustment fixture for installing steel columns as described in any one of the first aspects, specifically including the following steps:

[0015] Before the steel column to be installed is lifted, a support platform is fixedly connected to the installed steel column with screws; then the first telescopic rod and the second telescopic rod are installed on the support platform in sequence.

[0016] Install another support platform onto the steel column to be installed; then hoist the steel column to be installed onto the already installed steel column, so that the first telescopic rod and the second telescopic rod are located inside the steel column to be installed; the construction worker can move the screw and the limiting block through the internal through hole to install the screw and the limiting block, and the limiting block is reserved for the height adjustment of the second telescopic rod;

[0017] The top data and posture of the two steel columns are measured to obtain the adjustment data. Based on the adjustment data, the first telescopic rod is activated first, and the first telescopic rod abuts against the steel column to be installed from the inside to adjust its position. After the first telescopic rod is adjusted, the second telescopic rod is activated to adjust the posture and elevation of the steel column to be installed.

[0018] After adjustment, tighten the screw and limit block, then drive in the punch and temporary bolts, and then carry out the high bolt construction; after construction, remove the adjustment fixture, and repeat the above method to install the steel column of the next segment.

[0019] The beneficial effects of this invention are:

[0020] This fixture is installed inside the steel column for adjustment, making construction safer compared to traditional external adjustments. It employs a fully bolted connection, utilizing the existing bolt holes on the steel column for positioning. The fixture uses horizontal and vertical adjustment jacks for greater precision, allowing for accurate adjustment of posture, elevation, and displacement. The vertical adjustment base and limiters are fitted with PTFE plates to reduce friction during horizontal adjustments. A vertical limit device, made of high-strength threaded steel, prevents instability and damage to the steel column under eccentric pressure or lateral loads. It also acts as a safety device in case of jack failure. After adjustment, the limit bolts can be tightened for temporary locking. The fixture utilizes multiple jacks, enabling centralized, coordinated control and improving work efficiency. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present application;

[0023] Figure 2 This is a schematic diagram of the top support platform of this application;

[0024] Figure 3 This is a schematic diagram of the bottom support platform of this application;

[0025] Figure 4 This is a schematic diagram of the screw portion of this application;

[0026] Figure 5 This is a schematic diagram of the support frame for this application. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] A three-way adjustment fixture for installing steel columns includes: a support platform 1, a first telescopic rod 3, a second telescopic rod 4, and a limiting rod; two support platforms 1 are provided; each support platform 1 has a through hole 2; one support platform 1 is fixedly installed with the first telescopic rod 3 and the second telescopic rod 4, and the other support platform 1 is connected to the telescopic end of the second telescopic rod 4; the telescopic direction of the first telescopic rod 3 is horizontal; four telescopic rods 3 and the second telescopic rod 4 are arranged circumferentially around the through hole 2; limiting seats 5 are evenly distributed circumferentially on each support platform 1; each limiting seat 5 is provided with a limiting hole; two limiting seats 5 located in the same vertical direction are provided with screws 6 in the limiting holes; the screws 6 are threaded to limiting blocks 7 on both sides of the limiting holes.

[0031] The installation method for the steel column to be installed includes the following steps:

[0032] Before the steel column to be installed is lifted, a support platform 1 is fixedly connected to the installed steel column with screws; then, telescopic rod 1 3 and telescopic rod 2 4 are installed on the support platform 1 in sequence.

[0033] Install another support platform 1 onto the steel column to be installed; then hoist the steel column to be installed onto the already installed steel column, so that the first telescopic rod 3 and the second telescopic rod 4 are located inside the steel column to be installed; the construction worker can move through the internal through hole 2 to install the screw 6 and the limiting block 7, and the limiting block 7 is reserved for the height adjustment of the second telescopic rod 4;

[0034] The top dimensions and posture of the two steel columns are measured to calculate the adjustment data. Based on this data, telescopic rod 3 is activated first, pressing against the steel column to be installed from the inside for position adjustment. After telescopic rod 3 is adjusted, telescopic rod 4 is activated to adjust the posture and elevation of the steel column to be installed. Screw 6 prevents the steel column from becoming unstable and failing under eccentric pressure or lateral loads. It also acts as a safety device in case the telescopic rod fails. After the fixture adjustment is completed, the limit bolts are tightened for temporary locking.

[0035] After the adjustment is completed, tighten screw 6 and limit block 7, then drive in punch nails and temporary bolts, and then carry out high bolt construction; after the construction is completed, remove the adjustment fixture, and repeat the above method to install the steel column of the next segment.

[0036] In some embodiments, the support platform 1 is mounted on a telescopic rod 3 via a horizontal base 8; the horizontal base 8 and the telescopic rod 3 are connected by screws; the horizontal base 8 includes a horizontal plate 9, a vertical plate 10, and an inclined triangular plate 11; the horizontal plate 9 and the vertical plate 10 are connected by the inclined triangular plate 11; the support plate is provided with a groove; the groove is provided with a pressure sensor 12; the horizontal base 8 and the support platform 1 are connected by screws; the force of the telescopic rod 3 can be known through the pressure sensor, which facilitates the adjustment of the telescopic rod 3.

[0037] In some embodiments, the support platform 1 is equipped with a telescopic rod 4 via a vertical base 13 and a vertical base 2 14; the vertical base 13 is connected to the support platform 1 with the telescopic end of the telescopic rod 4 by screws, and the vertical base 2 14 is connected to another support platform 1 by screws; a PTFE plate 15 is fixedly installed on the vertical base 13; the PTFE plate 15 is provided with a groove 2; a telescopic seat 16 is provided on the other side of the vertical base 13; a groove 3 is provided on one side of the telescopic seat 16, and a movable groove 17 is provided on the other side of the telescopic seat 16; the groove 2 and the groove 3 are also connected by a pressure sensor 12; the telescopic end of the telescopic rod 4 is located in the movable groove 17; the vertical base 2 14 is fixedly connected to the telescopic rod 4; the PTFE plate 15 is used to reduce friction during installation and adjustment.

[0038] In some embodiments, the limiting block 7 includes a nut 18, a washer 19, and a PTFE plate 20; the nut 18 is threadedly connected to the screw 6; the washer 19 and the PTFE plate 20 are sequentially arranged between the nut 18 and the limiting seat 5; a PTFE plate 31 is fixedly attached to the side of the limiting seat 5 near the PTFE plate 20; the PTFE plate 20 and the PTFE plate 31 are used to reduce friction when adjusting the horizontal and vertical directions.

[0039] In some embodiments, the support platform 1 is connected to the steel column via a support frame 22; the support frame 22 includes a vertical connecting plate 23, an inclined connecting plate 24, and a platform connecting plate 25; the platform connecting plate 25 is symmetrically and fixedly connected to two inclined connecting plates 24; a side plate is fixedly installed between the two inclined connecting plates 24; the side plates are fixedly installed with the vertical connecting plates 23 in a matrix pattern; the support frame 22 is triangular in shape to reduce space volume and facilitate fixed installation; the vertical connecting plate 23 has evenly distributed mounting holes 26; the platform connecting plate 25 is connected to the support platform 1 by screws; the vertical connecting plate 23 is connected to the steel column through the mounting holes 26 and screws.

[0040] In some embodiments, the support platform 1 includes a platform plate 27 and a platform plate 28; the platform plate 27 and the platform plate 28 are fixedly connected by a platform connecting plate 25, which enhances the bending resistance of the platform and divides the platform into upper and lower steel plates, ensuring sufficient space for bolting; the platform plate 28 and the platform connecting plate 25 are provided with elongated holes 29 in a uniform matrix; the elongated holes 29 are connected by screws, and since the elongated holes 29 have a larger adjustable area than the round holes, it is convenient for the construction worker to fix and install them internally; a rectangular tube 30 is installed on the platform plate 27 of the support platform 1; the vertical plate 10 abuts against the side wall of the rectangular tube 30; when the rectangular tube 30 is adjusted by the telescopic rod 3, it raises a support surface, and the reaction force of the telescopic rod 3 for supporting the steel column can be transmitted to the rectangular tube 30, reducing the stress on the bottom screws.

[0041] In some embodiments, telescopic rod 3 and telescopic rod 4 are both jacks.

[0042] In some embodiments, the screw 6 is a precision-rolled threaded steel bar.

[0043] like Figure 1-5 As shown, the three-way adjustment fixture for steel column installation in this embodiment includes: a support platform 1, a horizontal adjustment jack, a vertical adjustment jack, and a limit rod;

[0044] The support platform 1 is connected to the steel column via a support frame 22. The support frame 22 includes a vertical connecting plate 23, an inclined connecting plate 24, and a platform connecting plate 25. The platform connecting plate 25 is symmetrically and fixedly connected to two inclined connecting plates 24. A side plate is fixedly installed between the two inclined connecting plates 24. The vertical connecting plates 23 are fixedly installed in a matrix on the side plates. The support frame 22 is triangular in shape to reduce space volume and facilitate fixed installation. The vertical connecting plate 23 has evenly distributed mounting holes 26. The platform connecting plate 25 is connected to the support platform 1 by screws. The vertical connecting plate 23 is connected to the steel column via mounting holes 26 and screws.

[0045] The support platform 1 includes platform plate 1 27 and platform plate 28. Platform plate 1 27 and platform plate 28 are fixedly connected by platform connecting plate 25. Platform connecting plate 25 improves the bending resistance of the platform and divides the platform into upper and lower steel plates, ensuring sufficient space for bolting. Platform plate 28 and platform connecting plate 25 are provided with elongated holes 29 in a uniform matrix. The elongated holes 29 are connected by screws. Since the elongated holes 29 have a larger adjustable area than the round holes, it is convenient for the construction worker to fix and install them internally. A rectangular tube 30 is installed on platform plate 1 27 of the support platform 1. The vertical plate 10 abuts against the side wall of the rectangular tube 30. When the rectangular tube 30 is adjusted by the horizontal adjusting jack, a support surface is raised. The reaction force of the horizontal adjusting jack used to lift the steel column can be transmitted to the rectangular tube 30, reducing the stress on the bottom screws.

[0046] Two support platforms 1 are provided; each support platform 1 has a through hole 2; a horizontal adjustment jack is installed on one support platform 1 via a horizontal base 8; the horizontal base 8 and the horizontal adjustment jack are connected by screws; the horizontal base 8 includes a horizontal plate 9, a vertical plate 10, and an inclined triangular plate 11; the horizontal plate 9 and the vertical plate 10 are connected by the inclined triangular plate 11; the support plate is provided with a groove 1; a pressure sensor 12 is provided in the groove 1; the horizontal base 8 and the support platform 1 are connected by screws; the force of the horizontal adjustment jack can be known through the pressure sensor, which facilitates the adjustment of the horizontal adjustment jack;

[0047] Another vertical adjustment jack is installed via vertical base 13 and vertical base 2 14; vertical base 13 is connected to support platform 1 with the telescopic end of the vertical adjustment jack installed by screws, and vertical base 2 14 is connected to another support platform 1 by screws; PTFE plate 15 is fixedly installed on vertical base 13; PTFE plate 15 is provided with groove 2; telescopic seat 16 is provided on the other side of vertical base 13; groove 3 is provided on one side of telescopic seat 16, and movable groove 17 is provided on the other side of telescopic seat 16; groove 2 and groove 3 are also connected by a pressure sensor 12; the telescopic end of the vertical adjustment jack is embedded in movable groove 17; vertical base 2 14 is fixedly connected to the vertical adjustment jack; PTFE plate 15 is used to reduce friction during installation and adjustment; the telescopic direction of the horizontal adjustment jack is horizontal;

[0048] Four horizontal and vertical adjusting jacks are arranged in a circular pattern around the through hole 2. Limiting seats 5 are evenly distributed in a circular pattern on the support platform 1. Each limiting seat 5 has a limiting hole. Two limiting seats 5 located in the same vertical direction have screws 6 installed in their limiting holes. Limiting blocks 7 are threadedly connected to both sides of the limiting holes on the screws 6. Each limiting block 7 includes a nut 18, a washer 19, and a PTFE plate 20. The nut 18 is threadedly connected to the screw 6. The washer 19 and the PTFE plate 20 are sequentially arranged between the nut 18 and the limiting seat 5. A PTFE plate 3 21 is fixedly installed on the side of the limiting seat 5 closest to the PTFE plate 20. The PTFE plates 20 and 3 21 are used to reduce friction during horizontal and vertical adjustments.

[0049] The installation method for the steel column to be installed includes the following steps:

[0050] Before lifting the steel column to be installed, the support platform 1, support frame 22, horizontal base 8, and vertical base 13 are fixedly connected to the installed steel column with screws; then the horizontal adjusting jack and the vertical adjusting jack are installed on the support platform 1 in sequence.

[0051] Install another support platform 1, vertical base 2 14 and support frame 22 onto the steel column to be installed; then hoist the steel column to be installed onto the already installed steel column, so that the horizontal adjustment jack and the vertical adjustment jack are located inside the steel column to be installed; the construction worker can move through the internal through hole 2 to install the screw 6 and the limit block 7, and the limit block 7 is reserved with length for the vertical adjustment jack to adjust the height;

[0052] Measure the top data and posture of the two steel columns to calculate the adjustment data. Based on the adjustment data, first activate the horizontal adjusting jacks, which then press against the steel columns to be installed from the inside to adjust their position. After the horizontal adjusting jacks are completed, activate the vertical adjusting jacks to adjust the posture and elevation of the steel columns to be installed. Screw 6 prevents the steel columns from becoming unstable and failing under eccentric pressure or lateral loads. It also acts as a safety device in case the telescopic rod fails. After the tooling is adjusted, tighten the limit bolts for temporary locking.

[0053] After the adjustment is completed, tighten screw 6 and limit block 7, then drive in punch nails and temporary bolts, and then carry out high bolt construction; after the construction is completed, remove the adjustment fixture, and repeat the above method to install the steel column of the next segment.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A three-way adjusting fixture for installing steel columns, characterized in that, include: Support platform (1), telescopic rod one (3), telescopic rod two (4) and limiting rod; Two support platforms (1) are provided; each support platform (1) has a through hole (2); one support platform (1) is fixedly installed with the first telescopic rod (3) and the second telescopic rod (4), and the other support platform (1) is connected to the telescopic end of the second telescopic rod (4); the telescopic direction of the first telescopic rod (3) is horizontal; the first telescopic rod (3) and the second telescopic rod (4) are arranged in a circular pattern around the through hole (2); each support platform (1) is evenly distributed with a limiting seat (5) in a circular pattern; each limiting seat (5) is provided with a limiting hole; two limiting seats (5) located in the same vertical direction are provided with a screw (6) in the limiting hole; the screw (6) is threaded to a limiting block (7) on both sides of the limiting hole; The tooling is set inside the steel column for adjustment. One of the support platforms (1) is fixedly connected to the installed steel column by screws, and the other support platform (1) is installed on the steel column to be installed.

2. The three-way adjustment fixture for installing steel columns according to claim 1, characterized in that, The support platform (1) is mounted on the telescopic rod (3) via a horizontal base (8); the horizontal base (8) and the telescopic rod (3) are connected by screws; the horizontal base (8) includes a horizontal plate (9), a vertical plate (10) and an inclined triangular plate (11); the horizontal plate (9) and the vertical plate (10) are connected by the inclined triangular plate (11); the support plate is provided with a groove; the groove is provided with a pressure sensor (12); the horizontal base (8) and the support platform (1) are connected by screws.

3. The three-way adjustment fixture for installing steel columns according to claim 2, characterized in that, The support platform (1) is equipped with the telescopic rod (4) via vertical base one (13) and vertical base two (14); the vertical base one (13) is connected to the support platform (1) with the telescopic end of the telescopic rod (4) installed thereon by screws, and the vertical base two (14) is connected to another support platform (1) by screws; the vertical base one (13) is fixedly equipped with a PTFE plate one (15); the PTFE plate one (15) is provided with a groove two; the other side of the vertical base one (13) is provided with a telescopic seat (16); one side of the telescopic seat (16) is provided with a groove three, and the other side of the telescopic seat (16) is provided with a movable groove (17); the groove two and the groove three are also connected by a pressure sensor (12); the telescopic end of the telescopic rod (4) is located in the movable groove (17); the vertical base two (14) is fixedly connected to the telescopic rod (4).

4. The three-way adjustment fixture for installing steel columns according to claim 3, characterized in that, The limiting block (7) includes a nut (18), a washer (19), and a second PTFE plate (20); the nut (18) is threadedly connected to the screw (6); the washer (19) and the second PTFE plate (20) are arranged sequentially between the nut (18) and the limiting seat (5); a third PTFE plate (21) is fixedly installed on the side of the limiting seat (5) near the second PTFE plate (20).

5. The three-way adjustment fixture for installing steel columns according to claim 4, characterized in that, The support platform (1) is connected to the steel column by a support frame (22); the support frame (22) includes a vertical connecting plate (23), an inclined connecting plate (24) and a platform connecting plate (25); the platform connecting plate (25) is symmetrically fixedly connected to two of the inclined connecting plates (24); a side plate is fixedly installed between the two inclined connecting plates (24); the side plate is fixedly installed with the vertical connecting plate (23) in a matrix; the vertical connecting plate (23) is evenly distributed with mounting holes (26); the platform connecting plate (25) is connected to the support platform (1) by screws.

6. The three-way adjustment fixture for installing steel columns according to claim 5, characterized in that, The support platform (1) includes a platform plate one (27) and a platform plate two (28); the platform plate one (27) and the platform plate two (28) are fixedly connected by a platform connecting plate (25); the platform plate two (28) and the platform connecting plate (25) are provided with elongated holes (29) in a uniform matrix; the elongated holes (29) are connected by screws; a rectangular tube (30) is installed on the platform plate one (27) of the support platform (1); the vertical plate (10) abuts against the side wall of the rectangular tube (30).

7. The three-way adjustment fixture for installing steel columns according to claim 1, characterized in that, Both telescopic rod one (3) and telescopic rod two (4) are jacks.

8. The three-way adjustment fixture for installing steel columns according to claim 1, characterized in that, The screw (6) is a precision-rolled threaded steel bar.

9. A method for installing steel columns, characterized in that... The installation method employs the three-way adjustment fixture for steel column installation as described in any one of claims 1-8, and specifically includes the following steps: Before the steel column to be installed is lifted, a support platform (1) is fixedly connected to the installed steel column with screws; then the telescopic rod one (3) and telescopic rod two (4) are installed on the support platform (1) in sequence; Install another support platform (1) onto the steel column to be installed; then hoist the steel column to be installed onto the already installed steel column, so that the first telescopic rod (3) and the second telescopic rod (4) are located inside the steel column to be installed; the construction worker can move through the internal through hole (2) to install the screw (6) and the limiting block (7), and the limiting block (7) is reserved for the second telescopic rod (4) to adjust its height; Measure the column top data and column posture of the two steel columns, and calculate the adjustment data; according to the adjustment data, first start the first telescopic rod (3), and the first telescopic rod (3) abuts against the steel column to be installed from the inside to adjust the position; after the first telescopic rod (3) is adjusted, start the second telescopic rod (4) to adjust the posture and elevation of the steel column to be installed; After the adjustment is completed, tighten the screw (6) and the limiting block (7), then drive in the punch and temporary bolts, and then carry out the high bolt construction; after the construction is completed, remove the adjustment fixture, and repeat the above steps to install the steel column of the next segment.

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