Modularized splicing platform and construction method thereof

Abstract

The invention relates to the technical field of wind power tower structure design and construction, and discloses a modular assembly platform and a construction method thereof. The plurality of supporting legs are uniformly arranged in the circumferential direction of the central seat and are detachably connected with the central seat; the base is adjustably arranged at the top of the supporting leg in the length direction of the supporting leg and used for being connected with a corner post of a lattice section; the base is detachably connected with the corner posts; and the plurality of height adjusting pieces are uniformly arranged at the bottoms of the central seat and the supporting legs and are used for adjusting the levelness of the central seat and the supporting legs. The problems that when a lattice type tower is installed, time and labor are wasted and the installation efficiency is low in the mode that spare parts are hoisted and installed for multiple times are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power tower structure design and construction, and in particular to a modular assembly platform and a construction method thereof. Background Art

[0002] As wind turbines continue to evolve toward taller towers, larger blades, and larger megawatts, tower loads are increasing. Traditional steel towers or steel-concrete composite towers are becoming less safe and more expensive to design. To meet the load requirements of these larger turbines, a new type of lattice tower has emerged.

[0003] A lattice tower usually includes multiple layers of lattice segments connected from bottom to top. The lattice segments are generally composed of loose parts such as corner columns, cross bars and webs. During installation, the loose parts are generally hoisted. For each layer of lattice segments installed, the hook is raised and lowered at least 8 times. As the hoisting height becomes higher, the multiple lifting and lowering of the hook is time-consuming and labor-intensive, and the installation efficiency is low. Summary of the Invention

[0004] In view of this, the present invention provides a modular assembly platform and a construction method thereof to solve the problem that the installation of a lattice tower is time-consuming and labor-intensive, and has low installation efficiency, due to the multiple hoisting and installation of separate parts.

[0005] In a first aspect, the present invention provides a modular assembly platform, comprising: Center seat; A plurality of legs are evenly arranged along the circumference of the center seat and are detachably connected to the center seat; A base, adjustable along the length of the leg and arranged on the top of the leg, for connecting to the corner post of the lattice segment; the base is detachably connected to the corner post; A plurality of height adjustment members are evenly arranged at the bottom of the central seat and the supporting legs, and are used to adjust the horizontality of the central seat and the supporting legs.

[0006] In an optional embodiment, a plurality of groups of positioning hole assemblies are provided side by side on the supporting legs along the length direction thereof, and the base is connected to the positioning hole assemblies by bolts.

[0007] In an optional embodiment, the height adjusting member is a jack.

[0008] In an optional embodiment, the top of the base is arranged at a preset angle to the horizontal plane.

[0009] In an optional embodiment, the top of the base is connected to the corner column via a flange.

[0010] In an optional embodiment, the flange is provided with a plurality of arc-shaped slots around its axial direction, and the arc-shaped slots are connected to the corner column bolts.

[0011] In an optional embodiment, a plurality of connecting seats are provided on the circumferential side of the center seat, a leg interface is provided on the connecting seat, and the leg is provided with a positioning portion adapted to the leg interface; the positioning portion is adapted to be snapped into the leg interface, and the leg is bolted to the connecting seat.

[0012] In an optional embodiment, eight connecting seats are provided, and the eight connecting seats are evenly arranged around the circumference of the central seat; four supporting legs are provided, and the four supporting legs are respectively connected to four of the connecting seats.

[0013] In an optional embodiment, each of the connecting bases is provided with a height adjustment member at the bottom, and a plurality of the height adjustment members are provided at intervals along the length direction of the bottom of each leg.

[0014] In a second aspect, the present invention further provides a construction method for a modular assembly platform, which is applied to the modular assembly platform as described in any one of the first aspects, comprising the following steps: Place the center base on a flat construction surface and use the height adjustment piece to level it; Evenly install multiple legs on the center seat, use the height adjustment member to level them, and remeasure the distance from the legs to the center and the angle between each pair of legs; According to the position of the corner column of the lattice column, the base is installed on the supporting legs and adjusted to a predetermined position; Lifting the first corner post and securing it to one of the bases, using ground anchors to hold the corner post in place; Hoisting the second corner column to the base adjacent to the first corner column, securing it, tightening it with a ground anchor, and installing web members and crossbar components between the two adjacent corner columns; Repeat the previous step until all the corner columns, web members, and cross members are installed to form a lattice segment, measure the bottom and top root openings of the lattice segment, and tighten the node bolts; Disassemble the base and the corner column, and use lifting equipment to lift the lattice segment to the corresponding height position of the tower; Repeat the steps of installing the base onto the legs according to the position of the corner columns of the lattice columns, adjusting the base to the predetermined position, removing the base from the corner columns, and using the lifting equipment to lift the lattice segments to the corresponding height position of the tower, and assembling the next layer of lattice segments until all the lattice segments of the tower are assembled.

[0015] The technical solution of the present invention has the following advantages: 1. The present invention can complete the assembly of single-layer lattice segments on the ground to form a whole before hoisting and installing it, avoiding the waiting time of the hook switching between the ground and the air when hoisting the lattice segments, reducing the number of hoisting times, saving the installation period, improving the installation speed of the entire lattice segment, and saving labor and machinery costs.

[0016] 2. The present invention achieves precise positioning by adjusting the base and height adjustment member, ensuring the upper and lower root opening dimensions of adjacent and opposite corner columns, improving installation accuracy, and is applicable to assembling lattice sections of different sizes, with a wide range of adaptability and reduced use costs.

[0017] 3. The lattice segments of the present invention are assembled in a single layer on the ground and then hoisted in modular form. Compared with the hoisting of separate parts at high altitude, this reduces the high-altitude operation steps and time of removing the hooks and tightening the bolts at high altitude, and at the same time reduces the impact of severe weather such as strong winds on the hoisting construction, thereby improving construction safety.

[0018] 4. When the lattice segments of the present invention are assembled on the ground, the construction conditions are good, the equipment is complete, and the measurement and adjustment are convenient, which reduces the situation where the cumulative errors caused by the high-altitude lifting of the loose parts make it impossible to adjust and can only expand the holes on the components, thereby ensuring the overall safety of the tower structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a modular assembly platform according to an embodiment of the present invention; Figure 2 A schematic structural diagram of a height adjustment member according to an embodiment of the present invention; Figure 3 is a structural schematic diagram of a base according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a center seat according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a support leg according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a first state of assembling lattice segments according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a second state of assembling lattice segments according to an embodiment of the present invention; Figure 8This is a schematic diagram of a third state of assembling lattice segments according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the fourth state of assembling lattice segments according to an embodiment of the present invention; Figure 10 The present invention is a flowchart of a method for constructing a modular assembly platform according to an embodiment of the present invention.

[0021] Description of reference numerals: 1. Center seat; 2. Support legs; 3. Base; 4. Corner column; 5. Height adjustment piece; 6. Positioning hole assembly; 7. Flange; 8. Arc-shaped slot; 9. Connecting seat; 10. Support leg interface; 11. Cross bar; 12. Belly bar; 13. Positioning part. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] The following combination Figures 1 to 10 , describing embodiments of the present invention.

[0027] According to an embodiment of the present invention, on the one hand, a modular assembly platform is provided, comprising: a center seat 1; a plurality of legs 2, evenly arranged along the circumference of the center seat 1 and detachably connected to the center seat 1; a base 3, adjustably arranged at the top of the leg 2 along the length direction of the leg 2, for connecting the corner column 4 of the lattice segment; the base 3 is detachably connected to the corner column 4; a plurality of height adjustment members 5, evenly arranged at the bottom of the center seat 1 and the legs 2, for adjusting the horizontality of the center seat 1 and the legs 2.

[0028] It should be noted that the number of the legs 2 corresponds one-to-one to the number of the corner posts 4 in the lattice segment; and each leg 2 is provided with a base 3 .

[0029] In this embodiment, a plurality of legs 2 are provided on the circumference of the center base 1 according to the number of corner posts 4 in the lattice segment. During installation, the center base 1 is first placed on a flat surface and leveled using the height adjustment member 5 at the bottom of the center base 1. The plurality of legs 2 are then evenly arranged around the circumference of the center base 1 according to the positions of the corner posts 4 and leveled using the height adjustment member 5 to ensure the horizontality and accuracy of the connected lattice segment. According to the positions of the corner posts 4 of the lattice segment to be connected, the bases 3 on the legs 2 are adjusted to the preset positions. First, the first leg 2 is placed on the center base 1. The first corner column 4 is connected to one of the bases 3 and fixed with a ground anchor to prevent the corner column 4 from tipping over. Then, the second corner column 4 is placed adjacent to the first corner column 4 and connected to the corresponding base 3. After being fixed with the ground anchor, the cross bars 11 and web members 12 between two adjacent corner columns 4 are connected. This process is repeated in sequence to complete the installation of all corner columns 4 and the cross bars 11 and web members 12 between two adjacent corner columns 4, ultimately forming a layer of lattice segments. The above steps are then repeated to complete the splicing of multiple layers of lattice segments, and they are installed in sequence by hoisting to form a tower. The modular assembly platform provided by this embodiment can complete the assembly of single-layer lattice sections on the ground to form a whole before hoisting and installing, avoiding the waiting time of the hook switching between the ground and the air when the lattice sections are hoisted, reducing the number of hoisting times, saving the installation period, improving the installation speed of the lattice sections as a whole, and saving labor and machinery costs; by adjusting the base 3 and the height adjustment member 5 to achieve precise positioning, ensure the upper and lower root opening sizes of adjacent and opposite corner columns 4, improve installation accuracy, and be suitable for assembling different sizes The lattice segments are small in size and have a wide range of applications, which reduces the cost of use. The lattice segments are assembled in a single layer on the ground and then hoisted in modularized form. Compared with the high-altitude hoisting of loose parts, this reduces the high-altitude operation steps and time for removing hooks and tightening bolts, while also reducing the impact of severe weather such as strong winds on the hoisting construction, thereby improving construction safety. In addition, when the lattice segments are assembled on the ground, the construction conditions are good, the equipment is complete, and measurement and adjustment are convenient, which reduces the situation where the cumulative errors caused by the high-altitude hoisting of loose parts make it impossible to adjust and can only expand holes in the components, thereby ensuring the overall safety of the tower structure.

[0030] In one embodiment, Figure 1 、 Figures 5 to 9 As shown, a plurality of groups of positioning hole assemblies 6 are arranged side by side on the supporting leg 2 along its length direction, and the base 3 is connected to the positioning hole assemblies 6 by bolts.

[0031] It should be noted that each group of positioning hole components 6 includes a plurality of positioning holes.

[0032] In this embodiment, the base 3 is connected to the positioning holes on the support legs 2 by bolts, which is convenient for installation and disassembly, and multiple groups of positioning hole assemblies 6 are provided, which makes it convenient to adjust the position of the base 3 according to the position of the corner column 4 in the lattice segment to adapt to the assembly of different lattice segments. It has a wide range of applications, can be reused many times, has a high turnover rate, and reduces the assembly cost.

[0033] In one embodiment, Figure 2 As shown, the height adjusting member 5 is a jack.

[0034] In this embodiment, the height adjustment member 5 adopts a jack to improve the supporting strength and ensure the stability during the assembly of the lattice segments.

[0035] In one embodiment, Figure 1 and Figure 3 As shown, the top of the base 3 is set at a preset angle with the horizontal plane.

[0036] In this embodiment, the top of the base 3 is set at a preset angle with the horizontal plane to facilitate adaptation to the inclination angle of the corner column 4. The specific angle can be set according to actual needs. For example, the corner columns 4 of tower sections with different centripetal angles can be connected using corresponding adaptive bases 3.

[0037] In one embodiment, Figure 3 As shown, the top of the base 3 is connected to the corner column 4 through a flange 7.

[0038] In this embodiment, the base 3 is connected to the corner column 4 by a flange 7 to improve the connection strength.

[0039] In one embodiment, Figure 3 As shown, a plurality of arcuate slots 8 are provided on the flange 7 around its axial direction, and the arcuate slots 8 are connected to the corner columns 4 with bolts.

[0040] It should be noted that the axis of the arc-shaped notch 8 coincides with the axis of the flange 7 .

[0041] In this embodiment, an arc-shaped notch 8 is provided on the flange 7 to facilitate fitting flanges of corner columns 4 with the same diameter but different numbers of bolts, thereby reducing installation errors and increasing the scope of application.

[0042] In one embodiment, Figure 1 and Figure 4 As shown, a plurality of connecting seats 9 are provided on the peripheral side of the center seat 1, a leg interface 10 is provided on the connecting seat 9, and the leg 2 is provided with a positioning portion 13 adapted to the leg interface 10; the positioning portion 13 is adapted to be snapped into the leg interface 10, and the leg 2 is bolted to the connecting seat 9.

[0043] In this embodiment, a connecting seat 9 is provided on the peripheral side of the center seat 1 corresponding to the support leg 2. When connected, the support leg 2 is embedded in the support leg interface 10 through the positioning portion 13, which is convenient for positioning, so that the support leg 2 and the connecting seat 9 are connected with bolts, thereby improving the accuracy and efficiency of installation.

[0044] In one embodiment, Figure 1 and Figure 4 As shown, there are eight connecting seats 9 , which are evenly arranged around the circumference of the center seat 1 ; four supporting legs 2 are provided, and the four supporting legs 2 are respectively connected to four of the connecting seats 9 .

[0045] In this embodiment, eight connecting seats 9 are provided, and the four legs 2 are connected to four of the connecting seats 9. The other four can be used as spares and can be replaced in case of damage or other situations to increase the service life. When connected, two of the legs 2 are symmetrically arranged and on a straight line, and the other two legs 2 are symmetrically arranged and on a straight line, that is, the two straight lines where the four legs 2 are located intersect vertically, thereby ensuring the stability of the formed lattice segment.

[0046] Specifically, the horizontal cross-section of the center seat 1 is an octagonal structure, which improves the overall stability.

[0047] In one embodiment, Figure 1 As shown, a height adjustment member 5 is provided at the bottom of each connecting seat 9, and a plurality of height adjustment members 5 are provided at intervals along the length direction of the bottom of each leg 2.

[0048] In this embodiment, the center seat 1 is supported and the levelness of the center seat 1 is adjusted by a height support member similar to each connecting seat 9, and the levelness of the support leg 2 is adjusted by multiple height adjustment members 5 under the support leg 2 to achieve overall levelness adjustment.

[0049] The specific working principle of the modular assembly platform provided in this embodiment is as follows: during installation, the center base 1 is first placed on a flat ground, and the center base 1 is leveled by the jack at the bottom of the center base 1. Then, the four legs 2 are evenly arranged in a cross shape around the outer periphery of the center base 1 according to the positions of the corner columns 4, and the legs 2 are leveled by the jack to ensure the horizontality and accuracy of the connected lattice segments. According to the positions and centripetal angles of the corner columns 4 of the lattice segments to be connected, an appropriate base 3 is selected, and the base 3 is adjusted to a preset position along the length direction of the legs 2 and fixedly connected to the positioning hole assembly 6 by bolts. Next, the first corner post 4 is connected to the flange 7 on the base 3 and fixed with ground anchors to prevent the corner post 4 from tipping over. Then, the second corner post 4 is placed adjacent to the first corner post 4 and connected to the corresponding flange 7 of the base 3. After fixing with ground anchors, the cross bars 11 and web members 12 between two adjacent corner posts 4 are connected. This process is repeated in sequence to complete the installation of all corner posts 4 and the cross bars 11 and web members 12 between two adjacent corner posts 4. Finally, one layer of lattice segments is assembled. The above steps are then repeated to complete multiple layers of lattice segments, which are then assembled in sequence by hoisting to form a tower.

[0050] According to an embodiment of the present invention, Figures 6 to 10 As shown, on the other hand, a construction method of a modular assembly platform is also provided, which is applied to the modular assembly platform as in any embodiment of the first aspect, comprising the following steps: Step S1: Place the center base 1 on a flat construction ground and level it using the height adjustment member 5; Step S2: evenly install multiple legs 2 on the center base 1, use the height adjustment member 5 to level them, and remeasure the distance between the legs 2 and the center and the angle between any two legs 2; Step S3: Install the base 3 onto the legs 2 according to the position of the corner columns 4 of the lattice columns and adjust them to a predetermined position; Step S4: hoist the first corner column 4 and fix it to one of the bases 3, and use a ground anchor to hold the corner column 4; Step S5: hoist the second corner column 4 onto the base 3 adjacent to the first corner column 4, tighten it with a ground anchor, and install the web member 12 and the cross member 11 between the two adjacent corner columns 4; Step S6: Repeat the previous step until all corner columns 4, web members 12, and cross members 11 are installed to form a lattice segment. Measure the bottom and top root gaps of the lattice segment and tighten the node bolts (the root gap refers to the distance between adjacent or diagonal (diagonal root gap) main steel reference lines). Step S7: dismantle the base 3 and the corner column 4, and use a lifting device to lift the lattice segment to a corresponding height position of the tower for installation; Step S8: Repeat steps S3 to S7 to assemble the next layer of lattice segments until all lattice segments of the tower are assembled.

[0051] In this embodiment, the specific assembly process of the single-layer lattice segment is as follows: Figures 6 to 10 As shown, the center base 1 is placed on a flat construction ground and leveled using the height adjustment member 5. Then, multiple legs 2 are evenly installed on the center base 1, leveled using the height adjustment member 5, and the distance from the legs 2 to the center and the angle between each pair of legs 2 are remeasured. By remeasurement of the distance from the legs 2 to the center and the angle between each pair of legs 2, the accuracy of the assembled lattice segment is improved. Then, according to the position of the corner column 4 of the lattice column, the base 3 is installed on the leg 2 and adjusted to a predetermined position. The base 3 is bolted to the base 3 through the multiple groups of positioning hole assemblies 6 provided on the leg 2 to achieve adjustment of the position of the base 3. Then, the first corner column 4 is hoisted and fixed to one of the bases 3 (as shown in FIG. Figure 6 As shown), use the ground anchor to pull the corner column 4, fix the corner column 4 by the ground anchor to improve stability for subsequent installation, and then hoist the second corner column 4 to the base 3 adjacent to the first corner column 4 and fix it (as shown in Figure 7 As shown), use the ground anchor to tighten, and install the web member 12 and the cross member 11 between the two adjacent corner columns 4 (as shown Figure 8 As shown in the figure, the second corner column 4 is fixed by ground anchor to improve the stability so as to facilitate the subsequent connection of the web members 12 and the cross members 11. Then the above operation is repeated in sequence until all the corner columns 4, web members 12 and cross members 11 are installed to form a lattice section (as shown in the figure). Figure 9 As shown), measure the bottom and top root openings of the lattice segment and tighten the node bolts. By measuring the bottom and top root openings of the lattice segment, ensure that they meet the requirements and ensure installation accuracy. Then disassemble the base 3 and corner column 4, use the lifting equipment to lift the lattice segment to the corresponding height position of the tower for installation, then disassemble the base 3 and corner column 4 to facilitate the overall lifting and installation of the completed lattice segment, and at the same time carry out the assembly of the next layer of lattice segments. Finally, repeat the above operations and assemble the next layer of lattice segments until all lattice segments of the tower are assembled. After completing the assembly of the single-layer lattice segment, assemble the multi-layer lattice segments as a whole in sequence, reducing high-altitude lifting and construction procedures, improving safety and construction efficiency, and assembling the lattice segments on the ground, which is convenient for adjustment and measurement, reducing installation errors, and improving the safety of the tower structure.

[0052] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A modular assembly platform, characterized in that: include: Center seat (1); A plurality of legs (2) are evenly arranged along the circumference of the center seat (1) and are detachably connected to the center seat (1); A base (3) is adjustably arranged on the top of the support leg (2) along the length direction of the support leg (2) and is used to connect the corner column (4) of the lattice segment; the base (3) is detachably connected to the corner column (4); A plurality of height adjustment members (5) are evenly arranged at the bottom of the central seat (1) and the supporting legs (2) and are used to adjust the horizontality of the central seat (1) and the supporting legs (2).

2. The modular assembly platform according to claim 1, characterized in that: The supporting legs (2) are provided with a plurality of groups of positioning hole assemblies (6) arranged side by side along the length direction thereof, and the base (3) is connected to the positioning hole assemblies (6) via bolts.

3. The modular assembly platform according to claim 1, characterized in that: The height adjustment member (5) is a jack.

4. The modular assembly platform according to claim 1, characterized in that: The top of the base (3) is arranged at a preset angle to the horizontal plane.

5. The modular assembly platform according to claim 1, characterized in that: The top of the base (3) is connected to the corner column (4) via a flange (7).

6. The modular assembly platform according to claim 5, characterized in that: The flange (7) is provided with a plurality of arc-shaped slots (8) around its axial direction, and the arc-shaped slots (8) are bolted to the corner columns (4).

7. The modular assembly platform according to any one of claims 1 to 6, characterized in that: A plurality of connecting seats (9) are provided on the peripheral side of the center seat (1), a leg interface (10) is provided on the connecting seat (9), and the leg (2) is provided with a positioning portion (13) adapted to the leg interface (10); the positioning portion (13) is adapted to be snap-fitted into the leg interface (10), and the leg (2) is bolted to the connecting seat (9).

8. The modular assembly platform according to claim 7, characterized in that: There are eight connecting seats (9), and the eight connecting seats (9) are evenly arranged around the circumference of the central seat (1); there are four supporting legs (2), and the four supporting legs (2) are respectively connected to four of the connecting seats (9).

9. The modular assembly platform according to claim 7, characterized in that: The bottom of each connecting seat (9) is provided with a height adjustment member (5), and the bottom of each supporting leg (2) is provided with a plurality of height adjustment members (5) at intervals along its length direction.

10. A construction method for a modular assembly platform, characterized in that: The modular assembly platform according to any one of claims 1 to 9 comprises the following steps: Place the center seat (1) on a flat construction ground and level it using the height adjustment member (5); Evenly install a plurality of legs (2) on the center seat (1), use the height adjustment member (5) to level them, and re-measure the distance between the legs (2) and the center and the angle between any two legs (2); According to the position of the corner column (4) of the lattice column, the base (3) is mounted on the support leg (2) and adjusted to a predetermined position; Hoisting the first corner column (4) and fixing it to one of the bases (3), and using a ground anchor to hold the corner column (4); Hoisting the second corner column (4) to the base (3) adjacent to the first corner column (4), tightening it using a ground anchor, and installing the web member (12) and the cross member (11) between the two adjacent corner columns (4); Repeat the previous step until all the corner columns (4), the web members (12) and the cross members (11) are installed to form a layer of lattice segments, measure the bottom and top roots of the lattice segments and tighten the node bolts; The base (3) and the corner column (4) are disassembled, and the lattice segment is hoisted to a corresponding height position of the tower using a hoisting device; Repeat the steps of installing the base (3) on the support leg (2) according to the position of the corner column (4) of the lattice column, adjusting it to a predetermined position, disassembling the base (3) and the corner column (4), and hoisting the lattice segment to the corresponding height position of the tower using a hoisting device, and assembling the next layer of lattice segments until all lattice segments of the tower are assembled.

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