Prestressed structure construction and installation process

Abstract

The invention relates to the technical field of prestressed framework type towers, and provides a prestressed structure construction and installation technology, which comprises two anchor plates respectively arranged at the upper end and the lower part of a main column, the two anchor plates are oppositely arranged up and down, the middle parts of the anchor plates are provided with avoiding windows, and the anchor plates are annularly provided with a plurality of hole channels arranged at intervals; the hole channel is communicated with the avoiding window through a connecting groove; the steel strand penetrates through the vertically-opposite hole channels, and anchorage devices are arranged on the upper side and the lower side of the steel strand. A base is arranged in the middle of the supporting plate, and a plurality of supporting plates are arranged on the outer side of the base, correspond to the connecting grooves in position one to one and are used for abutting against one end of the anchor plate; the middle of the cover plate is arranged on the periphery of the threaded rod in a sleeving mode, the threaded rod is in threaded connection with a nut, the nut abuts against the cover plate, and the anchor plate is clamped by the cover plate and the supporting plate. By means of the technical scheme, the problems that in the prior art, the space limitation of steel strand hoisting is large, and operation is inconvenient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of prestressed frame towers, and in particular to a prestressed structure construction and installation process. Background Art

[0002] In the wind turbine frame tower, prestressed steel strands are installed in the four main columns. The steel strands enter from the hole at the bottom of the main column and are lifted to the anchor plate on the transition section. Special equipment is used to tension the prestressed steel strands. The lower part of the prestressed steel strands is fixed in the control channel of the anchor plate under the steel strands, and the upper part is anchored in the anchor plate channel on the main column of the transition section and anchored using special anchors.

[0003] In the existing prestressed structure, the steel strand needs to pass through a circular and closed channel. In the process of using the traction rope to pull and lift the steel strand, although the diameter of the lifting connector in the middle is slightly larger than the diameter of the steel strand, the channel diameter also needs to be larger to allow the lifting connector to pass through, but the channel diameter is still not much different from the steel strand. As a result, the steel strand or the traction rope is easily rubbed against the inner wall of the channel during the upward movement, causing wear and affecting the maintenance quality. At the same time, the limitation of the channel diameter has great restrictions on the selection of lifting connectors and the use of other auxiliary lifting tools, which brings inconvenience to operation and affects construction efficiency.

[0004] In the existing technology, there are many space restrictions for steel strand hoisting, and the problem of inconvenient operation needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a prestressed structure construction and installation process in response to the above-mentioned technical deficiencies, which solves the problems in the prior art of many space limitations and inconvenient operation in the lifting of steel strands.

[0006] The technical solution adopted by the present invention is to provide a prestressed structure construction and installation process for use in the main column of a prestressed frame tower, comprising: There are two anchor plates, which are respectively arranged at the upper end and the lower part of the main column. The two anchor plates are arranged opposite to each other up and down. There is a avoidance window in the middle of the anchor plate. There are several holes arranged at intervals along the ring of the anchor plate. The holes and the avoidance windows are connected through a connecting groove; There are a plurality of steel strands, each of which passes through the upper and lower opposite holes, and each of the upper and lower sides of the steel strand is provided with anchors for connecting the two anchor plates; A support plate, having a base in the middle, a plurality of support plates on the outside of the base, a connecting column in the middle of the base, a threaded rod on the upper part of the connecting column, the support plates corresponding to the connecting grooves in position, the base passing through the avoidance window and the support plates passing through the connecting grooves, the support plates being used to abut against one end of the anchor plate; The cover plate has a plurality of avoidance holes, which correspond to the positions of the channels one by one. The middle part of the cover plate is sleeved on the periphery of the threaded rod. The threaded rod is threadedly connected with a nut, which abuts against the cover plate. The cover plate and the support plate clamp the anchor plate.

[0007] To further optimize the technical solution, one end of the anchor plate has a plurality of positioning grooves, the positioning grooves correspond one-to-one to the positions of the channel, and the ends of the anchors are inserted into the positioning grooves.

[0008] To further optimize the technical solution, the other end of the anchor plate has a plurality of positioning grooves, the positioning grooves correspond one-to-one to the positions of the support plates, and the support plates are used to be inserted into the positioning grooves.

[0009] To further optimize the technical solution, a drain pipe is provided in the middle of the cover plate, the drain pipe is sleeved on the connecting column, and the nut abuts against the drain pipe.

[0010] To further optimize this technical solution, there are eight channels.

[0011] A prestressed steel strand installation process is also proposed. The prestressed steel strand installation process is installed in the main column of the tower using the prestressed steel strand. Two anchor plates are fixed to the upper and lower ends of the main column, respectively. The side wall of the lower portion of the main column has a construction window located below the lower anchor plate. Prestressed steel strands, support plates, and cover plates are installed on the two anchor plates. The process is characterized in that it includes the following steps: S1. Install a hoist on the top of the main column. The hoist's boom can rotate freely. Anchors are installed on both sides of the steel strand. The distance between the two anchors is greater than the maximum distance between the two anchor plates. S2. Install a launching tool at the lower inner portion of the main column. The launching tool includes a rotatable casing and a horizontally movable guide roller. The guide roller is located above the casing. After the guide roller moves, it moves horizontally toward or away from the casing. The steel strand is located on the ground. The end of the steel strand enters the bottom inner portion of the main column. The end of the traction rope passes downward through the guide roller and the casing, and is detachably connected to the end of the steel strand via a lifting piece. S3. When hoisting the steel strand, the hoist reels in the traction rope, which drives the steel strand to pass around the casing and move upward. When the hoisting part or anchor passes through the casing, the guide roller moves away from the casing, driving the traction rope or steel strand partially away from the casing. The traction rope or steel strand between the guide roller and the casing is in an inclined state, which facilitates the hoisting part or anchor with a larger diameter to pass around the casing smoothly. Then the guide roller is reset. When the hoisting part or anchor passes through the guide roller, the guide roller moves away from the hoisting part or anchor, and the traction rope drives the steel strand to move upward, passing through the avoidance window in the middle of the lower anchor plate and the avoidance window in the middle of the upper anchor plate. The upper anchor of the steel strand is located above the upper anchor plate, and the lower anchor is located below the lower anchor plate. S4. The steel strand is put into place. The lifting arm of the hoist is moved to make the steel strand enter the connecting groove of the anchor plate. The steel strand finally enters the channel. The steel strand passes through the channels corresponding to the upper and lower positions. The traction rope is released a little to make the upper anchor enter the positioning groove of the upper anchor plate. The lower anchor is located below the positioning groove of the lower anchor plate. The lower anchor is manually moved to the positioning groove for preliminary fixation. After completing the installation of one steel strand, the lifting part is disconnected from the end of the steel strand, and the traction rope is released downward to lift other steel strands. After the lifting of the steel strand on one main column is completed, the hoist and the tooling are removed and moved, and the steel strand is lifted on another main column. S5, tensioning operation: after all the steel strands in a main column are hoisted, CNC equipment is used to tension the steel strands from below; S6. Install the support plate and cover plate on the anchor plate. When installing on the upper anchor plate, the base of the support plate is located in the avoidance window of the anchor plate and lowered. The support plate slides down in the connecting groove until it reaches the bottom of the anchor plate. The support plate is rotated, and the support plate is misaligned with the connecting groove. The support plate abuts against the lower end of the anchor plate or is lifted up and inserted into the positioning groove. The upper end of the anchor plate is covered with the installation cover plate. The drain pipe in the middle of the cover plate is sleeved on the connecting column. The nut is screwed into the threaded rod to fix the support plate and the cover plate to be connected, and the anchor plate is encapsulated. When installing on the lower anchor plate, the support plate is installed from bottom to top, and the cover plate is located at the lower end of the lower anchor plate.

[0012] To further optimize this technical solution, the delivery tooling described in step S3 also includes a mounting frame, which is detachably mounted inside the main column. The sleeve is rotatably arranged at the lower part of the mounting frame, and a slide is rotatably arranged at the upper end of the mounting frame. A linear drive mechanism is arranged on the slide, and the linear drive mechanism drives the guide roller to move. The middle part of the guide roller has an annular anti-deviation groove, and the steel wire rope or traction rope is located in the anti-deviation groove.

[0013] To further optimize this technical solution, during the rising process of the steel strand in step S3, after the hoisting member and the upper anchor pass through the guide roller, the slide rotates so that the guide roller and the sleeve are respectively located on both sides of the steel strand.

[0014] To further optimize the technical solution, in step S6, before installing the cover plate on the anchor plate, a waterproof material is applied between the cover plate and the anchor plate, and then the cover plate is fixed.

[0015] The beneficial effects of the present invention are: 1. During the process of hoisting the steel strand, the larger diameter avoidance window in the middle of the anchor plate is used for hoisting operations. The operating space is large, the channel will not be worn during the hoisting process, and the wear of the steel strand is reduced. It is convenient to use larger hoisting parts for connection, which is conducive to making the installation and use of hoisting parts easier, more convenient to operate, and easy to improve operational efficiency.

[0016] 2. Anchors can be installed in advance on both sides of the steel strand to reduce the number of high-altitude operation steps.

[0017] 3. The support plate and the cover plate clamp the anchor plate. When an avoidance window is opened in the middle of the anchor plate, the overall strength of the anchor plate can be enhanced. At the same time, the cover plate can play a role in sealing the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main column structure of the present invention; Figure 2 This is a schematic diagram of the internal prestressed structure of the main column of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of point a (upper anchor plate); Figure 4 For the present invention Figure 2 A partial enlarged structural diagram of point b in the middle (lower anchor plate and tooling); Figure 5 This is a structural diagram of one end of the anchor plate of the present invention; Figure 6 This is a structural schematic diagram of the other end of the anchor plate of the present invention; Figure 7 This is a schematic diagram of the support plate and cover plate structure of the present invention; Figure 8 This is a schematic diagram of the front view of the prestressed structure of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the structure viewed from above; Figure 10 For the present invention Figure 9 Schematic diagram of the cross-sectional structure at the AA position; Figure 11 This is a schematic structural diagram of the guide roller in use of the present invention; Figure 12 This is a schematic diagram of the structure of the guide roller and the sleeve on both sides of the steel strand of the present invention; Explanation of the marks in the figure: 1. Main column; 101. Construction window; 2. Anchor plate; 201. Avoidance window; 202. Channel; 203. Connection groove; 204. Positioning groove; 205. Positioning groove; 3. Steel strand; 301. Anchor; 4. Support plate; 401. Base; 402. Support plate; 403. Connection column; 404. Threaded rod; 405. Nut; 5. Cover plate; 501. Drain pipe; 502. Avoidance hole; 6. Launching tool; 601. Mounting frame; 602. Sleeve; 603. Slide; 604. Linear drive mechanism; 605. Guide roller; 606. Anti-deviation groove; 7. Traction rope; 701. Lifting parts. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0021] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1-12As shown, a prestressed structural structure comprises: two anchor plates 2, the two anchor plates 2 are respectively arranged at the upper end and the lower part of the main column 1, the two anchor plates 2 are arranged opposite to each other up and down, the middle part of the anchor plate 2 is provided with a avoidance window 201, the upper ring of the anchor plate 2 is provided with a plurality of holes 202 arranged at intervals, the holes 202 and the avoidance windows 201 are connected through a connecting groove 203; there are a plurality of steel strands 3, the steel strands 3 pass through the holes 202 opposite to each other up and down, and the upper and lower sides of the steel strands 3 are provided with anchors 301 for connecting the two anchor plates 2; a support plate 4 is provided with a base 401 in the middle, and a plurality of support plates 402 are provided on the outside of the base 401. The base 401 has a connecting column 403 in the middle, and a threaded rod 404 on the upper portion of the connecting column 403. The support plate 402 corresponds to the connecting slot 203 in a one-to-one manner. The base 401 passes through the avoidance window 201, and the support plate 402 passes through the connecting slot 203. The support plate 402 is used to abut one end of the anchor plate 2. The cover plate 5 has a plurality of avoidance holes 502, which correspond to the positions of the passage 202 in a one-to-one manner. The middle portion of the cover plate 5 is sleeved around the outer periphery of the threaded rod 404. The threaded rod 404 is threadedly connected to a nut 405, which abuts the cover plate 5. The cover plate 5 and the support plate 4 clamp the anchor plate 2. One end of the anchor plate 2 has a plurality of positioning grooves 204, which correspond to the positions of the passage 202 in a one-to-one manner. The end of the anchor 301 is inserted into the positioning groove 204. The other end of the anchor plate 2 has a plurality of retaining grooves 205, which correspond one-to-one with the support plates 402. The support plates 402 are designed to be inserted into the retaining grooves 205. The central portion of the cover plate 5 has a drain pipe 501, which is sleeved onto the connecting column 403. The nut 405 abuts against the drain pipe 501. The passages 202 have eight openings.

[0024] When in use, an anchor plate 2 is provided at the upper end of the main column 1 in the transition section, and another anchor plate 2 is provided at the lower end of the main column 1, with the two anchor plates 2 being arranged opposite each other up and down. Several holes 202 on the anchor plate 2 are located outside the avoidance window 201. The diameter of the hole 202 is slightly larger than the diameter of the steel strand 3. The connecting groove 203 passes through the anchor plate 2 in parallel with the axis of the hole 202, and one end of the connecting groove 203 is connected to the avoidance window 201, and the other end is connected to the hole 202. The steel strand 3 can be hoisted and raised in the avoidance window 201 and enter the hole 202 through the connecting groove 203. Several steel strands 3 are distributed along an annular interval on the anchor plate 2. The anchors 301 on the upper and lower sides of the steel strand 3 are respectively connected to the upper end of the upper anchor plate 2 and the lower end of the lower anchor plate 2. The anchors 301 can use extrusion anchors, pads, clip anchors, etc. according to construction requirements. Taking the anchor plate 2 at the upper end as an example, the support plate 4 passes through the avoidance window 201 of the anchor plate 2 from top to bottom. The length of the support plate 402 is less than the connection groove 203. The support plate 402 passes through the connection groove 203 to the bottom of the anchor plate 2. The support plate 4 is rotated so that the support plate 402 is rotated to the lower end of the anchor plate 2. The cover plate 5 covers the upper end of the anchor plate 2. The anchor 301 and the end of the steel strand 3 pass through the avoidance hole 502. The nut 405 is tightened on the threaded rod 404 to achieve the connection between the support plate 4 and the cover plate 5. The anchor plate 2 is clamped. Waterproof glue can be applied to the upper end of the anchor plate 2 and the hole structure. Then, the cover plate 5 is installed to enhance waterproofing. When installing the support plate 4 and the cover plate 5 on the lower anchor plate 2, the installation direction is opposite to that of the upper anchor plate 2. The support plate 4 passes through the avoidance window 201 of the lower anchor plate 2 from bottom to top, and after rotation, it abuts against the upper end of the lower anchor plate 2. The cover plate 5 covers the lower end of the anchor plate 2.

[0025] The end of the anchor plate 2 that contacts the cover plate 5 has a positioning groove 204. This is coaxial with the hole 202, allowing the end of the anchor 301 to be inserted into the positioning groove 204, improving stability during initial installation and after the final tensioning operation. The other end of the anchor plate 2 has several retaining grooves 205 corresponding to the positions of the support plates 402. The support plates 402 can be inserted into the retaining grooves 205, improving connection stability, strengthening the overall structural strength, and providing greater stability when tightening the nuts 405.

[0026] A drain pipe 501 is provided in the middle of the cover plate 5 and is sleeved on the connecting column 403. Waterproof glue or the like can be coated on the connecting column 403 to improve the waterproof performance.

[0027] Each main column 1 can be equipped with eight steel strands 3. Each pair of adjacent steel strands 3 forms a group. The angular spacing between the two strands 3 within a group is 30°, and the angular spacing between two adjacent groups of steel strands 3 is 60°. A retaining groove 205 is located between two adjacent groups of steel strands 3. The main column 1 in the accompanying drawings is for illustrative purposes only and does not represent length or scale.

[0028] A prestressed structural structure installation process is also proposed. The prestressed structural structure is installed in the main column 1 of the tower. Two anchor plates 2 are fixed to the upper end and lower part of the main column 1 respectively. The side wall of the lower part of the main column 1 has a construction window 101. The construction window 101 is located below the lower anchor plate 2. Prestressed steel strands 3, support plates 4 and cover plates 5 are installed on the two anchor plates 2. The installation includes the following steps: S1. A hoist is installed on the upper end of the main column 1. The boom of the hoist can rotate freely. Anchors 301 are provided on both sides of the steel strand 3. The distance between the two anchors 301 is greater than the maximum distance between the two anchor plates 2. S2. Install a delivery tool 6 at the lower inner portion of the main column 1. The delivery tool 6 includes a rotatable sleeve 602 and a horizontally movable guide roller 605. The guide roller 605 is located above the sleeve 602. After the guide roller 605 moves, it moves horizontally toward or away from the sleeve 602. The steel strand 3 is located on the ground, and its end enters the inner bottom portion of the main column 1. The end of the traction rope 7 passes downward through the guide roller 605 and the sleeve 602, and is detachably connected to the end of the steel strand 3 through the hanging piece 701. S3, hoisting steel strand 3, hoisting machine reeling in traction rope 7, traction rope 7 drives steel strand 3 to pass through casing 602 and move upward, as shown in FIG. Figure 11 As shown, when the lifting member 701 or the anchor 301 is about to pass through the casing 602, the guide roller 605 moves away from the casing 602, driving the traction rope 7 or the steel strand 3 to partially move away from the casing 602, and the traction rope 7 or the steel strand 3 between the guide roller 605 and the casing 602 is in an inclined state, which is convenient for the lifting member 701 or the anchor 301 with a larger diameter to smoothly bypass the casing 602. Then the guide roller 605 is reset, and when the lifting member 701 or the anchor 301 passes through the guide roller 605, the guide roller 605 moves away from the lifting member 701 or the anchor 301, and the traction rope 7 drives the steel strand 3 to move upward, passing through the avoidance window 201 in the middle of the lower anchor plate 2 and the avoidance window 201 in the middle of the upper anchor plate 2. The upper anchor 301 is located above the upper anchor plate 2, and the lower anchor 301 is located below the lower anchor plate 2. After the lifting of the steel strand 3 is completed, the lifting device 701 is disconnected from the end of the steel strand 3 and the traction rope 7 is released downwards. The above steps are repeated to lift other steel strands 3. After the lifting of the steel strand 3 on one main column 1 is completed, the lifting device 701 is removed and moved, and the tooling 6 is put into use, and the steel strand 3 is lifted on another main column 1. The end of the steel strand 3 can be connected to a nylon rope, etc., to pull down the traction rope 7.

[0029] S5, tensioning operation, after all the steel strands 3 in a main column 1 are hoisted, CNC equipment is used to tension the steel strands 3 from below; after the tensioning operation is completed, the excess steel strands 3 are cut.

[0030] S6. Install the support plate 4 and the cover plate 5 on the anchor plate 2. When installing on the upper anchor plate 2, the base 401 of the support plate 4 is located in the avoidance window 201 of the anchor plate 2 and lowered, and the support plate 402 slides down in the connecting groove 203 until it reaches the bottom of the anchor plate 2. The support plate 4 is rotated, and the support plate 402 is misaligned with the connecting groove 203, abutting against the lower end of the anchor plate 2 or being lifted up and inserted into the positioning groove 205. The upper end of the anchor plate 2 is covered with the installation cover plate 5, and the drain pipe 501 in the middle of the cover plate 5 is sleeved on the connecting column 403. The nut 405 is screwed into the threaded rod 404 to fix the support plate 4 and the cover plate 5 to seal the anchor plate 2; when installing on the lower anchor plate 2, the support plate 4 is installed from bottom to top, and the cover plate 5 is located at the lower end of the lower anchor plate 2.

[0031] Furthermore, the delivery tooling 6 described in step S3 also includes a mounting frame 601, which is detachably mounted inside the main column 1. The tower pipe is rotatably arranged at the lower part of the mounting frame 601, and a slide 603 is rotatably arranged at the upper end of the mounting frame 601. A linear drive mechanism 604 is arranged on the slide 603. The linear drive mechanism 604 drives the guide roller 605 to move. The middle part of the guide roller 605 has an annular anti-deviation groove 606, and the steel strand 3 or the traction rope 7 is located in the anti-deviation groove 606.

[0032] The guide roller 605 can limit the steel strand 3 through the anti-deflection groove 606. At the same time, when the guide roller 605 moves, it can more stably drive the steel strand 3 to move. When the steel strand 3 passes through the connecting groove 203 and moves into the channel 202, it can be pushed with the help of the guide roller 605.

[0033] Furthermore, during the rising process of the steel strand 3 in step S3, Figure 12As shown, after the hanging piece 701 and the upper anchor 301 pass through the guide roller 605, the slide 603 rotates so that the guide roller 605 and the sleeve 602 are located on both sides of the steel strand 3 respectively.

[0034] By limiting on both sides, the steel strand 3 can be made more stable after entering the main column 1 and reduce shaking.

[0035] Furthermore, in step S6, before installing the cover plate 5 on the anchor plate 2, a waterproof material is applied between the cover plate 5 and the anchor plate 2 according to technical requirements, and then the cover plate 5 is fixed. Waterproof glue, rust remover, etc. are used according to technical requirements, and other installation precautions are carried out according to technical requirements.

[0036] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A prestressed structural structure, used in a main column (1) of a prestressed frame tower, characterized in that: include: There are two anchor plates (2), the two anchor plates (2) are respectively arranged at the upper end and the lower part of the main column (1), the two anchor plates (2) are arranged opposite to each other up and down, the middle part of the anchor plate (2) has a avoidance window (201), the upper edge of the anchor plate (2) has a plurality of holes (202) arranged at intervals, and the holes (202) and the avoidance window (201) are connected through a connecting groove (203); There are a plurality of steel strands (3), each of which passes through the upper and lower opposite holes (202), and each of the upper and lower sides of the steel strand (3) is provided with anchors (301) for connecting the two anchor plates (2); A support plate (4) has a base (401) in the middle, a plurality of support plates (402) are provided on the outside of the base (401), a connecting column (403) is provided in the middle of the base (401), a threaded rod (404) is provided on the upper portion of the connecting column (403), the support plates (402) and the connecting grooves (203) are in one-to-one correspondence, the base (401) passes through the avoidance window (201) and the support plates (402) pass through the connecting grooves (203), and the support plates (402) are used to abut against one end of the anchor plate (2); The cover plate (5) has a plurality of avoidance holes (502), the avoidance holes (502) corresponding to the positions of the ducts (202) one by one, the middle portion of the cover plate (5) is sleeved on the periphery of the threaded rod (404), the threaded rod (404) is threadedly connected with a nut (405), the nut (405) abuts against the cover plate (5), and the cover plate (5) and the support plate (4) clamp the anchor plate (2).

2. A prestressed structural structure according to claim 1, characterized in that: One end of the anchor plate (2) has a plurality of positioning grooves (204), the positioning grooves (204) correspond one-to-one to the positions of the holes (202), and the ends of the anchors (301) are inserted into the positioning grooves (204).

3. A prestressed structural structure according to claim 2, characterized in that: The other end of the anchor plate (2) has a plurality of latching slots (205), the latching slots (205) corresponding to the positions of the support plates (402) one by one, and the support plates (402) are used for being inserted into the latching slots (205).

4. A prestressed structural structure according to claim 3, characterized in that: The middle portion of the cover plate (5) is provided with a drain pipe (501), the drain pipe (501) is sleeved on the connecting column (403), and the nut (405) abuts against the drain pipe (501).

5. The prestressed structural structure according to claim 1, characterized in that: The number of the holes (202) is eight.

6. A process for installing a prestressed structural structure, wherein the prestressed structural structure according to claim 4 is installed in the main column (1) of a tower, the two anchor plates (2) are fixed to the upper end and the lower part of the main column (1), respectively, the side wall of the lower part of the main column (1) has a construction window (101), and the construction window (101) is located below the lower anchor plate (2), and prestressed steel strands (3), support plates (4) and cover plates (5) are installed on the two anchor plates (2), characterized in that, The steps include: S1, a hoist is installed at the upper end of the main column (1), the arm of the hoist can rotate freely, anchors (301) are sleeved on both sides of the steel strand (3), and the distance between the two anchors (301) is greater than the maximum distance between the two anchor plates (2); S2. Installing a delivery tool (6) at the lower inner portion of the main column (1), the delivery tool (6) comprises a rotatably arranged sleeve (602) and a horizontally movable guide roller (605), the guide roller (605) being located above the sleeve (602), and the guide roller (605) being moved to move closer to or away from the sleeve (602) in the horizontal direction, the steel strand (3) being located on the ground, the end of the steel strand (3) entering the inner bottom portion of the main column (1), the end of the traction rope (7) passing downward through the guide roller (605) and the sleeve (602), and then being detachably connected to the end of the steel strand (3) through the hanging piece (701); S3, hoisting the steel strand (3), the hoisting machine reels in the traction rope (7), the traction rope (7) drives the steel strand (3) to pass around the casing (602) and then move upwards, when the hoisting part (701) or the anchor (301) passes through the casing (602), the guide roller (605) moves away from the casing (602), driving the traction rope (7) or the steel strand (3) partially away from the casing (602), the traction rope (7) or the steel strand (3) between the guide roller (605) and the casing (602) is in an inclined state, which is convenient for the hoisting part (701) or the anchor (301) with a larger diameter to move along the casing (602). The guide roller (605) is then reset after the lifting member (701) or the anchor (301) passes through the guide roller (605). The guide roller (605) moves away from the lifting member (701) or the anchor (301). The traction rope (7) drives the steel strand (3) to move upwards, passing through the avoidance window (201) in the middle of the lower anchor plate (2) and the avoidance window (201) in the middle of the upper anchor plate (2). The upper anchor (301) of the steel strand (3) is located above the upper anchor plate (2), and the lower anchor (301) is located below the lower anchor plate (2). S4, the steel strand (3) is put into position, the lifting arm of the hoist is moved, and the steel strand (3) enters the connecting groove (203) of the anchor plate (2), and the steel strand (3) finally enters the hole (202), and the steel strand (3) passes through the hole (202) corresponding to the upper and lower positions, and the traction rope (7) is released a small amount, so that the upper anchor (301) enters the positioning groove (204) of the upper anchor plate (2), and the lower anchor (301) is located in the positioning groove (204) of the lower anchor plate (2). 04), manually move the lower anchor (301) into the positioning groove (204) for preliminary fixation. After completing the installation of one steel strand (3), disconnect the hoisting member (701) from the end of the steel strand (3), release the traction rope (7) downward, and hoist the other steel strands (3). After the hoisting of the steel strand (3) on one main column (1) is completed, remove and move the hoist and the tooling (6), and switch to another main column (1) to hoist the steel strand (3); S5, tensioning operation, after all the steel strands (3) in one main column (1) are hoisted, a numerical control device is used to perform tensioning operation on the steel strands (3) from below; S6. Install the support plate (4) and the cover plate (5) on the anchor plate (2). When installing on the upper anchor plate (2), the base (401) of the support plate (4) is located in the avoidance window (201) of the anchor plate (2) and lowered, and the support plate (402) slides down in the connecting groove (203) until it is below the anchor plate (2). The support plate (4) is rotated, and the support plate (402) is misaligned with the connecting groove (203). The support plate (402) abuts against the lower end of the anchor plate (2) or is lifted up. Inserted into the positioning groove (205), the upper end of the anchor plate (2) is covered with the installation cover plate (5), the drain pipe (501) in the middle of the cover plate (5) is sleeved on the connecting column (403), and the nut (405) is screwed into the threaded rod (404) to fix the support plate (4) and the cover plate (5) to encapsulate the anchor plate (2); when installing on the lower anchor plate (2), the support plate (4) is installed from bottom to top, and the cover plate (5) is located at the lower end of the lower anchor plate (2).

7. The installation process of a prestressed structural structure according to claim 6, characterized in that: The delivery tool (6) described in step S3 further includes a mounting frame (601), the mounting frame (601) is detachably mounted inside the main column (1), the sleeve (602) is rotatably mounted on the lower portion of the mounting frame (601), a slide (603) is rotatably mounted on the upper end of the mounting frame (601), a linear drive mechanism (604) is mounted on the slide (603), the linear drive mechanism (604) drives the guide roller (605) to move, the guide roller (605) has an annular anti-deflection groove (606) in the middle portion, and the steel strand (3) or the traction rope (7) is located in the anti-deflection groove (606).

8. The installation process of a prestressed structural structure according to claim 7, characterized in that: During the rising process of the steel strand (3) in step S3, after the hoisting member (701) and the upper anchor (301) pass through the guide roller (605), the slide (603) rotates so that the guide roller (605) and the sleeve (602) are respectively located on both sides of the steel strand (3).

9. The installation process of a prestressed structural structure according to claim 6, characterized in that: In step S6, before installing the cover plate (5) on the anchor plate (2), a waterproof material is applied between the cover plate (5) and the anchor plate (2), and then the cover plate (5) is fixed.

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