Anchored tower section of concrete tower and concrete tower

Abstract

The present invention discloses an anchoring tower section of a concrete tower and a concrete tower, wherein the anchoring tower section is annular, comprises a cylinder wall and an inner convex edge, the inner convex edge is connected to the top of the cylinder wall, the inner convex edge is formed by extending inward from a part of the inner circumferential wall of the cylinder wall, a plurality of first prestressed channels and a plurality of second prestressed channels are arranged on the anchoring tower section, the first prestressed channels are arranged at intervals along the circumferential direction and are all arranged in the cylinder wall, the first prestressed channels extend upward from the bottom surface of the cylinder wall to the top surface, the second prestressed channels are arranged at intervals along the circumferential direction, the second prestressed channels are at least partially arranged in the inner convex edge, the lower end of the second prestressed channel is connected to the adjacent first prestressed channel to form a branch of the first prestressed channel, or the lower end of the second prestressed channel extends to the bottom surface of the cylinder wall and is independent of the first prestressed channel. The inner convex edge of the anchoring tower section of the present invention can increase the local load-bearing performance, and can support the tower crane device to prevent overturning during the hoisting process.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and in particular is an anchoring tower section of a concrete tower and a concrete tower. Background Art

[0002] As the efficiency of wind turbine power generation increases, the length of blades is getting longer and longer, and the height and cross-sectional size of the wind turbine towers that match them are also increasing. Steel structure towers are difficult to meet the construction requirements of large-section high towers due to their high cost and difficulty in transportation. Precast concrete towers can economically build large wind turbines, so they have received widespread attention. Due to the limitations of transportation conditions and prefabrication processing conditions, a single large-section tower is often assembled on-site from multiple curved cylinder pieces. The assembled single towers are then hoisted from bottom to top in sequence, and finally built into a complete concrete tower.

[0003] The height of a traditional tower is generally 80 to 120 meters. Since the wind speed at high altitudes is greater, wind power generation can produce higher power generation efficiency, so the height of the tower needs to be increased, but this increases the difficulty of hoisting. When hoisting a tower with an extremely high height, a tower crane device that matches the height needs to be used at the same time. A tower crane device with an extremely high height is very likely to tilt during the hoisting process. In order to increase the stability of the tower crane device, when one or more concrete towers are built, the concrete tower and the tower crane device are connected together using an arm support structure to achieve support for the tower crane device by the concrete tower, thereby preventing the tower crane device from tipping over. However, in the prior art, when a connecting device is set on the tower to support the tower crane device, the supporting part of the tower will generate more lateral loads, causing the tower to be subjected to concentrated force and prone to deformation, requiring structural reinforcement. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an anchoring tower section of a concrete tower, wherein the anchoring end of the anchoring tower section of the concrete tower has a large local pressure bearing capacity, is not easily damaged, and is easy to construct.

[0005] The present invention also aims to provide a concrete tower comprising the anchoring tower section of the above concrete tower.

[0006] According to an embodiment of the present invention, an anchoring tower section of a concrete tower is provided, the anchoring tower section is annular, and the anchoring tower section includes a barrel wall and an inner convex edge, the inner convex edge is connected to the top of the barrel wall, and the inner convex edge is formed by extending inward from a part of the inner circumferential wall of the barrel wall, wherein the anchoring tower section is provided with a plurality of first prestressed channels and a plurality of second prestressed channels, and the plurality of first prestressed channels are arranged at intervals along the circumferential direction, each of the first prestressed channels is arranged in the barrel wall, each of the first prestressed channels extends upward from the bottom surface of the barrel wall to the top surface of the barrel wall, and the plurality of second prestressed channels are arranged at intervals along the circumferential direction, and each of the second prestressed channels is at least partially arranged in the inner convex edge; wherein the lower end of the second prestressed channel is connected to the adjacent first prestressed channel to form a branch of the first prestressed channel, or the lower end of the second prestressed channel extends to the bottom surface of the barrel wall and is independent of the first prestressed channel.

[0007] According to the anchoring tower section of the concrete tower of the embodiment of the present invention, the inner convex edge formed on the cylinder wall can be used as a support platform for anchoring and an anchoring device can be installed. The anchoring device does not need to be arranged in the cylinder wall, and does not occupy the pouring space of the reinforced concrete inside the cylinder wall; and when prefabricating the anchoring tower section or the tower section thereon, there is no need to reserve construction space in advance, and the construction is simple. The inner convex edge can increase the local bearing capacity of the anchoring tower section, increase the local strength, and enable the anchoring tower section to withstand more load stress. After the anchoring tower section is anchored, the safety factor during construction is increased. Adding steel ropes to the first prestressed channel and the second prestressed channel for anchoring can enhance the stability of the anchoring tower section and increase the connection with other tower sections.

[0008] According to the anchoring tower section of the concrete tower of one embodiment of the present invention, when the second prestressed duct and the first prestressed duct are independent of each other, each of the second prestressed duct is staggered with the first prestressed duct in the circumferential direction.

[0009] According to an anchoring tower section of a concrete tower according to one embodiment of the present invention, the number of the first prestressed holes is an even number, the number of the second prestressed holes is half the number of the first prestressed holes, and one second prestressed hole is provided between every two of the first prestressed holes.

[0010] According to the anchoring tower section of the concrete tower according to one embodiment of the present invention, the thickness of the inner convex edge gradually increases in the upward direction.

[0011] According to the anchoring tower section of the concrete tower according to one embodiment of the present invention, the inner convex edge is in a closed ring shape, and the vertical cross-section of the inner convex edge is in a triangular shape.

[0012] According to the anchoring tower section of a concrete tower according to one embodiment of the present invention, the wall of the tower includes three sections from bottom to top: a section of uniform thickness, the wall thickness of the section of uniform thickness is uniform; a transition section, the transition section is connected above the section of uniform thickness, the transition section extends obliquely in an upward direction toward the central axis of the anchoring tower section; and a connecting section, the connecting section is connected above the transition section, and the inner convex edge is connected to the inner peripheral wall of the connecting section.

[0013] According to a further embodiment of the present invention, the angle between the extension direction of the transition section and the vertical line is less than or equal to 30 degrees.

[0014] According to a further embodiment of the present invention, the radial dimension of the inner convex edge is 1-2 times the radial dimension of the cylinder wall.

[0015] A concrete tower according to an embodiment of the present invention comprises: a plurality of tower sections, the plurality of tower sections are connected in sequence from bottom to top, each of the tower sections is provided with a plurality of prestressed channels penetrating from top to bottom, at least one of the tower sections is the above-mentioned anchoring tower section, the tower section located above the anchoring tower section is connected to the cylinder wall of the anchoring tower section, and the number of the prestressed channels of the tower section located above the anchoring tower section is equal to the number of the first prestressed channels on the anchoring tower section; a plurality of prestressed cables, the plurality of prestressed cables are respectively arranged in the plurality of prestressed channels, the bottom end of each prestressed cable is fixed to the bottom of the concrete tower, the top of some of the prestressed cables passes through the first prestressed channel and then is fixed to the top of the concrete tower, and the top of some of the prestressed cables passes through the second prestressed channel and then is anchored to the anchoring tower section through an anchoring device.

[0016] According to the concrete tower of the embodiment of the present invention, an anchoring tower section is arranged on the whole tower, and the upper anchoring end of the prestressed cable passing through the second prestressed hole can be anchored on the anchoring tower section, thereby increasing the corresponding prestress of the tower section and the local load that can be carried. A connecting device can be arranged on the anchoring tower section to support the tower crane, thereby increasing the stability of the tower crane and preventing the tower crane from tipping over. The prestressed cable passing through the first prestressed hole can connect the anchoring tower section with other tower sections, thereby further increasing the prestress of the whole tower, improving the safety of the concrete tower construction, and increasing the stability and strength of the tower.

[0017] According to the concrete tower of one embodiment of the present invention, each of the tower sections is a prefabricated tower section, and a plurality of the tower sections are assembled and connected.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 The figure is a schematic diagram of the longitudinal cross-sectional structure of a concrete tower according to an embodiment of the present invention.

[0021] Figure 2 The figure is a schematic diagram of the transverse cross-sectional structure of an anchoring tower section through an inner convex edge according to an embodiment of the present invention.

[0022] Figure 3 The figure is a schematic diagram of the transverse cross-sectional structure of a joined tower section according to an embodiment of the present invention.

[0023] Figure 4 The figure is a schematic diagram of the longitudinal cross-sectional structure of a concrete tower according to another embodiment of the present invention.

[0024] Figure 5 It is a schematic diagram of the transverse cross-sectional structure of an anchoring tower section through an inner convex edge according to another embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of the support of the tower crane device by the concrete tower during the hoisting and construction process in one embodiment of the present invention.

[0026] Reference numerals:

[0027] Anchoring tower section 100;

[0028] Cylinder wall 10;

[0029] Inner convex edge 20;

[0030] A first prestressed hole 30;

[0031] Second prestressed hole 40;

[0032] Tower section 200; joined tower section 210;

[0033] Prestressed channel 50; third prestressed channel 51;

[0034] Anchoring device 60;

[0035] Concrete tower 300; tower foundation 310;

[0036] Tower crane device 400; tower crane foundation 410; tower crane body 420; longitudinal truss 421; horizontal truss 422;

[0037] Arm support structure 500 . DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] Reference below Figure 1-Figure 6 An anchoring tower section 100 according to an embodiment of the present invention is described.

[0040] According to an embodiment of the present invention, an anchoring tower section 100 of a concrete tower is Figure 1 , Figure 2 As shown, the anchoring tower section 100 is annular. The annular anchoring tower section 100 can reduce building consumables and reduce costs while providing sufficient support strength and stress tolerance.

[0041] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the anchoring tower section 100 includes a cylinder wall 10 and an inner convex edge 20, wherein the inner convex edge 20 is connected to the top of the cylinder wall 10, and the inner convex edge 20 is formed by extending inward from a portion of the inner circumferential wall of the cylinder wall 10. The inner convex edge 20 here increases the local strength of the top of the anchoring tower section 100 and increases the local stress tolerance.

[0042] like Figure 2 , Figure 5 As shown, the anchoring tower section 100 is provided with a plurality of first prestressed holes 30 and a plurality of second prestressed holes 40, and the plurality of first prestressed holes 30 are arranged at intervals along the circumferential direction, each first prestressed hole 30 is arranged in the cylinder wall 10, and each first prestressed hole 30 extends upward from the bottom surface of the cylinder wall 10 to the top surface of the cylinder wall 10. The first prestressed hole 30 directly passes through the cylinder wall 10 of the anchoring tower section 100, and when a prestressed cable is added to the first prestressed hole 30, it can be ensured that the cylinder wall 10 as a whole has sufficient performance to bear load stress.

[0043] A plurality of second prestressed channels 40 are arranged spaced apart along the circumferential direction, and each second prestressed channel 40 is at least partially arranged in the inner convex edge 20, wherein Figure 4 , Figure 5 As shown, at least part of the lower end of the second prestressed channel 40 is connected to the adjacent first prestressed channel 30 to form a branch of the first prestressed channel 30. Here, it is shown that the part of the second prestressed channel 40 in the cylinder wall 10 can be formed in common with the first prestressed channel 30.

[0044] In other embodiments, Figure 1 , Figure 2As shown, the lower end of the second prestressed channel 40 extends to the bottom surface of the cylinder wall 10 and is independent of the first prestressed channel 30. It is shown here that the second prestressed channel 40 and the first prestressed channel 30 are two independent channels that do not cross.

[0045] The above-mentioned second prestressed channel 40 can directly pass through the cylinder wall 10 and the inner convex edge 20 of the anchor tower section 100 respectively. When prestressed cables are added to the second prestressed channel 40, the connection between the cylinder wall 10 and the inner convex edge 20 can be strengthened, and anchoring can also be performed on the inner convex edge 20. There is no need to reserve construction space in advance when anchoring the top of the cylinder wall 10.

[0046] It should be noted that the annular anchoring tower section 100 of the embodiment of the present invention can be formed by splicing a plurality of prefabricated tower pieces, or can be formed by casting by constructing a casting template on the construction site. The formation method of the anchoring tower section 100 is not limited here. At the same time, the annular shape here does not only include a circular ring, but can also be a polygonal ring such as a quadrilateral or hexagon.

[0047] In some embodiments of the present invention, Figure 2 As shown, when the second prestressed hole 40 and the first prestressed hole 30 are independent of each other, each second prestressed hole 40 is staggered with the first prestressed hole 30 in the circumferential direction. Prestressed cables can be added to the two staggered holes respectively, so that more prestress can be applied to the anchor tower section 100, thereby improving the anti-deformation ability of the anchor tower section 100. The two staggered holes can also reduce the consumables of the cylinder wall 10.

[0048] Accordingly, in some embodiments of the present invention, Figure 5 As shown, when the second prestressed channel 40 is formed as a branch of the first prestressed channel 30, the first prestressed channel 30 with branches and the first prestressed channel 30 without branches are staggered. While forming sufficient lateral load force, the second prestressed channel 40 required to be set in the anchor tower section 100 is saved.

[0049] Optionally, the second prestressed pores 40 are evenly spaced in the circumferential direction, and the first prestressed pores 30 are evenly spaced in the circumferential direction. The processing is easy, and the materials used in various places are relatively uniform. Of course, in some embodiments of the present invention, the first prestressed pores 30 and the second prestressed pores 40 may be unevenly distributed.

[0050] Alternatively, if Figure 2As shown, the number of the first prestressed holes 30 is an even number, the number of the second prestressed holes 40 is half of the number of the first prestressed holes 30, and a second prestressed hole 40 is provided between every two first prestressed holes 30. That is, on the top transverse section of the cylinder wall 10 and the inner convex edge 20, two first prestressed holes 30 and one second prestressed hole 40 are provided at intervals along the circumferential direction. Thus, while ensuring the prestress of the anchor tower section 100, the number of practical prestressed cables is saved, thereby reducing the construction cost of the anchor tower section 100.

[0051] Of course, the number of the first prestressed channels 30 of the present invention may also be an odd number, the number of the second prestressed channels 40 is the same as the number of the first prestressed channels 30, and the first prestressed channels 30 and the second prestressed channels 40 are evenly spaced.

[0052] Optionally, the first prestressed channel 30 in the cylinder wall 10 below the inner convex edge 20 and part of the second prestressed channel 40 in the cylinder wall 10 are parallel to each other, thereby facilitating the processing of the inner convex edge 20 and the addition of prestressed cables in the future.

[0053] In some embodiments of the present invention, Figure 1 As shown, the thickness of the inner convex edge 20 gradually increases in the upward direction. Thus, the top of the inner convex edge 20 forms a platform with a larger area, which facilitates the anchoring of the prestressed cable.

[0054] Optionally, the gradually thickened inner convex edge 20 is consistent with the extension direction of the second prestressed hole 40 in the inner convex edge 20. The hole wall of the second prestressed hole 40 in the inner convex edge 20 is parallel to the inner wall of the inner convex edge 20. It is ensured that the inner convex edge 20 is not damaged when the prestressed cable passes through the second prestressed hole 40.

[0055] Optionally, the inner convex edge 20 is in a closed ring shape, and the vertical cross-section of the inner convex edge 20 is in a triangular shape, thereby increasing the local pressure-bearing capacity of the inner convex edge 20 .

[0056] In some embodiments of the present invention, the cylinder wall 10 includes three sections from bottom to top: a section of equal thickness, a transition section, and a connection section. The wall thickness of the section of equal thickness is uniform; the transition section is connected to the top of the section of equal thickness, and the transition section extends obliquely upward toward the central axis of the anchoring tower section 100; the connection section is connected to the top of the transition section, and the inner convex edge 20 is connected to the inner circumferential wall of the connection section. The cylinder wall 10 of different thicknesses not only meets the load-bearing requirements of various places, but also saves materials. The upper transition section makes it easier to pour concrete when processing the cylinder wall 10.

[0057] Optionally, the angle between the extension direction of the transition section and the vertical line is less than or equal to 30 degrees. This angle determines the distance that the inner convex edge 20 extends into the inner cavity of the anchor tower section 100. If it is greater than 30 degrees, the distance that the inner convex edge 20 extends into the inner cavity of the anchor tower section 100 is too large, occupying the space of the inner cavity of the anchor tower section 100.

[0058] Optionally, the radial dimension of the inner convex edge 20 is 1-2 times the radial dimension of the cylinder wall 10. This multiple further limits the distance that the inner convex edge 20 extends out of the cylinder wall 10 and into the inner cavity space. If the inner convex edge 20 is too thin, the second prestressed channel 40 therein is easy to puncture the inner convex edge 20, making the inner convex edge 20 easy to rupture. If the inner convex edge 20 is too thick, the inner cavity of the anchor tower section 100 needs to reserve more space, wasting materials and space.

[0059] Optionally, the lower edge of the inner convex edge 20 is arranged on the transition section, and the upper edge of the inner convex edge 20 is arranged on the connection section, so that a relatively stable connection is formed between the inner convex edge 20 and the cylinder wall 10. The extension trend of the inner convex edge 20 can be consistent with the extension direction of the transition section, which facilitates the processing of the cylinder wall 10 and the inner convex edge 20, and makes the transition of the second prestressed channel 40 more natural.

[0060] Optionally, the inner convex edge 20 is integrally formed on the cylinder wall 10. The construction is convenient and the integrity is good.

[0061] Reference below Figure 1-Figure 6 A concrete tower 300 according to an embodiment of the present invention is described.

[0062] A concrete tower 300 according to an embodiment of the present invention comprises: a plurality of tower sections 200 and a plurality of prestressed cables (not shown in the figure), at least one of the plurality of tower sections 200 is an anchoring tower section 100 .

[0063] Specifically, Figure 1 As shown, multiple tower sections 200 are sequentially connected from bottom to top, and each tower section 200 is provided with multiple prestressed channels 50 that penetrate from top to bottom. Each tower section 200 can be penetrated with a prestressed cable to enhance its own load-bearing performance; in the case where two tower sections 200 share one prestressed cable, the connection between the tower sections 200 can also be increased.

[0064] The prestressed holes 50 on the anchoring tower section 100 include a first prestressed hole 30 and a second prestressed hole 40. The tower section 200 above the anchoring tower section 100 is connected to the wall 10 of the anchoring tower section 100. The anchoring tower section 100 provides support for the tower section 200 above it.

[0065] Here, the anchoring tower segment 100 and the tower segment 200 thereon are at a joint, and the inner convex edge 20 of the anchoring tower segment 100 protrudes out of the inner wall of the upper tower segment 200 in the radial direction.

[0066] like Figure 2 , Figure 3 As shown, the number of prestressing holes 50 of the tower section 200 located above the anchoring tower section 100 is equal to the number of the first prestressing holes 30 on the anchoring tower section 100 .

[0067] For the convenience of description, the tower section 200 connected to the anchoring tower section 100 is defined as the joining tower section 210, and the prestressed holes 50 in the joining tower section 210 are defined as the third prestressed holes 51. When the number of the third prestressed holes 51 is consistent with the number of the first prestressed holes 30, when the anchoring tower section 100 and the joining tower section 210 are joined, after the prestressed cables are inserted into the two holes, the prestressed cables in the first prestressed holes 30 can be inserted into one third prestressed hole 51 upward, so that the connection between the anchoring tower section 100 and the joining tower section 210 is tighter, more prestress is applied to the concrete tower 300, and the concrete tower 300 is stronger after being formed.

[0068] Multiple prestressed cables are respectively arranged in multiple prestressed channels 50, the bottom end of each prestressed cable is fixed to the bottom of the concrete tower 300, the top of some prestressed cables is fixed to the top of the concrete tower 300, and the top of some prestressed cables passes through the second prestressed channel 40 and is anchored on the anchoring tower section 100 through the anchoring device 60.

[0069] Adding prestressed cables of different heights at different construction stages can ensure the safety of the concrete tower 300 at different construction stages.

[0070] The top of the prestressed cable is anchored at different positions of the concrete tower 300, and the bottom of the prestressed cable starts from the bottom of the concrete tower 300. Therefore, there are more prestressed cables in the bottom tower section 200 and the anchoring tower section 100, which can increase the overall bearing capacity of the bottom tower section 200, making the bottom of the concrete tower 300 more stable and less likely to collapse. In addition, after adding an arm support structure 500 to form a connection between the anchoring tower section 100 and the tower crane 400, the support for the tower crane 400 can be increased to prevent the tower crane 400 with a higher tower body from tipping over during the process of hoisting the tower section 200. The excellent local load-bearing capacity of the anchoring tower section 200 is sufficient to support the tower crane 400.

[0071] When the concrete tower 300 is constructed, the tower crane 400 and the arm support structure 500 are removed, and the concrete tower 300 no longer bears lateral loads. The prestressed cables anchored on the inner convex edge 20 are convenient for removal after the later construction is completed.

[0072] The prestressed cables anchored on the top of the concrete tower 300 can ensure that the concrete tower 300 does not tilt, making the overall structure more stable.

[0073] An anchoring device 60 is provided on the inner convex edge 20 of the anchoring tower section 100 to anchor the prestressed cable extending from the second prestressed hole 40. The anchoring device 60 does not need to be provided in the cylinder wall 10, and does not occupy the pouring space of the reinforced concrete inside the cylinder wall 10; and when prefabricating or constructing the anchoring tower section 100 or the tower section 200 thereon, it is not necessary to reserve a construction space for the anchoring device 60 in advance, and the construction is simple.

[0074] In some embodiments of the present invention, each tower section 200 is a prefabricated tower section, and multiple tower sections 200 are assembled and connected. The tower section 200 includes an anchoring tower section 100, which is a special tower section 200. The anchoring tower section 100 solves a series of problems caused by the need to set an anchoring device 60 at the connection of the conventional tower section 200, such as the need to reserve construction space, the need for accurate positioning, the need for supplementary materials, and the occupation of the internal concrete and steel bar layout space.

[0075] The prefabricated tower section 200 can be prefabricated in real time before being hoisted, eliminating the inconvenience of transportation on the road. The prefabricated tower sections 200 are hoisted in sequence, connected and anchored from bottom to top until the entire concrete tower 300 is completed. At the position where the concrete tower 300 needs to be anchored, that is, the position where the tower crane device 400 needs to be supported, the anchoring tower section 100 with the inner convex edge 20 is used instead of the conventional joint tower section 210.

[0076] Alternatively, if Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the third prestressed hole 51 on the joining tower section 210 is arranged corresponding to the first prestressed hole 30 on the anchoring tower section 100 , so as to facilitate the alignment of the prestressed holes 50 of the two tower sections 200 .

[0077] To better understand the solution of the embodiment of the present invention, Figure 1-Figure 6 The structures of an anchoring tower section 100 and a concrete tower 300 according to a specific embodiment of the present invention are described.

[0078] like Figure 1 , Figure 2As shown, the anchoring tower section 100 of this embodiment includes three sections of cylinder walls 10 of unequal thickness and an inner convex edge 20 connected to the top of the cylinder wall 10. The cylinder wall 10 includes, from bottom to top, a section of uniform thickness, a transition section, and a connecting section. The transition section extends obliquely toward the central axis of the anchoring tower section 100 in the upward direction, and the angle between the extension direction of the transition section and the vertical line is 30 degrees. The connecting section is connected to the top of the transition section, and the inner convex edge 20 is connected to the inner peripheral wall of the connecting section. The thickness of the inner convex edge 20 gradually increases in the direction in which the inner convex edge 20 is consistent with the extension direction of the transition section.

[0079] A first prestressed channel 30 is provided extending along the axial direction in the cylinder wall 10. On the closed annular radial section of the cylinder wall 10, the first prestressed channel 30 is evenly spaced along the circumferential direction, and the first prestressed channel 30 is close to the outer wall of the cylinder wall 10. The first prestressed channel 30 runs through the bottom surface and the top surface of the cylinder wall 10.

[0080] A second prestressed channel 40 is provided in the cylinder wall 10 and the inner convex edge 20. Figure 1 , Figure 2 As shown, the portion of the second prestressed channel 40 in the cylinder wall 10 is parallel to the first prestressed channel 30 and extends in the same direction; the portion of the second prestressed channel 40 in the inner convex edge 20 extends upward and protrudes from the top surface of the inner convex edge 20.

[0081] like Figure 4 , Figure 5 As shown, the portion of the second prestressed hole 40 in the cylinder wall 10 is shared with the first prestressed hole 30 adjacent thereto, and the portion of the second prestressed hole 40 in the inner convex edge 20 extends upward and protrudes from the top surface of the inner convex edge 20 .

[0082] like Figure 2 As shown, the second prestressed hole 40 is disposed between two first prestressed holes 30 , and a second prestressed hole 40 is disposed every other first prestressed hole 30 .

[0083] like Figure 5 As shown, the second prestressed channel 40 is designed to be close to a first prestressed channel 30, and the portion of the second prestressed channel 40 located in the cylinder wall 10 is connected to the adjacent first prestressed channel 30, and a second prestressed channel 40 connected to a first prestressed channel 30 is provided for every first prestressed channel 30.

[0084] It should be additionally explained here that the concrete tower 300 of the embodiment of the present invention can be a tower for wind power generation, a tower for thermal power generation, or a tower for chemical industry application, without limitation here.

[0085] like Figure 1 and Figure 3 As shown, the concrete tower 300 of this embodiment includes two prefabricated tower sections 200 and a plurality of prestressed cables, and one of the two tower sections 200 is an anchoring tower section 100 .

[0086] The tower section 200 connected to the anchoring tower section 100 is a joining tower section 210. The joining tower section 210 is provided with third prestressed channels 51 corresponding in position and number to the first prestressed channels 30 of the anchoring tower section 100. Multiple prestressed cables are respectively drawn into the first prestressed channels 30 and the third prestressed channels 51 for communication. The inner wall periphery of the joining tower section 210 falls on the inner convex edge 20, and the inner convex edge 20 protrudes from the inner wall of the joining tower section 210.

[0087] Prestressed cables are also arranged in the second prestressed hole 40 .

[0088] The bottom ends of the prestressed cables in the first prestressed channel 30 and the second prestressed channel 40 are fixed to the bottom of the concrete tower 300. After the first prestressed channel 30 is aligned with the third prestressed channel 51, the tops of the prestressed cables in each prestressed channel 50 are fixed to the top of the concrete tower 300; the tops of the prestressed cables in the second prestressed channel 40 pass through the second prestressed channel 40 and are anchored to the inner convex edge 20 through the anchoring device 60.

[0089] Below through Figure 6 A construction method of a concrete tower 300 according to a specific embodiment of the present invention is described, and the supporting function of the concrete tower 300 on the tower crane 400 during the hoisting construction is explained.

[0090] S1: constructing a tower crane foundation 410 and a tower foundation 310 on the ground;

[0091] S2: Installing a tower crane body 420 on the tower crane foundation 410, the tower crane body 420 includes a longitudinal truss 421 and a horizontal truss 422, the longitudinal truss 421 is vertically fixed on the tower crane foundation 410, the horizontal truss 422 is arranged in the horizontal direction and connected to the longitudinal truss 421, the horizontal truss 422 is provided with a crane that can slide along the horizontal truss 422, and the longitudinal truss 421 is installed to a first preset height;

[0092] S3: Use a crane to hoist the prefabricated parts onto the tower foundation 310 to form an annular tower section 200. The tower section 200 is located on a horizontal side of the tower crane body 420. The prefabricated parts are annular or sheet-shaped. When the prefabricated parts are sheet-shaped, multiple prefabricated parts are hoisted to form an annular shape. The central axis of the tower section 200 is arranged vertically.

[0093] S4: After each tower section 200 is hoisted, another tower section 200 is hoisted upward until the tower body 120 is formed; wherein at least one tower section 200 is a support arm tower section, and a support arm support structure 500 is connected between the support arm tower section and the longitudinal truss 421: wherein,

[0094] In step S4, after each arm tower section is hoisted, the arm support structure 500 is installed first, and then another tower section 200 is hoisted above the arm tower section; the arm tower section can be an anchoring tower section 100 or a joining tower section 210 connected to the anchoring tower section 100, and the anchoring tower section 100 is provided with an anchoring device 60 for fixing the prestressed cable; after each anchoring tower section 100 is hoisted, the prestressed cable is first stretched and fixed between the anchoring device 60 and the tower foundation 310, and then another tower section 200 is hoisted upwards.

[0095] S5: After the entire concrete tower 300 is hoisted, the tower crane 400 and the arm support structure 500 , as well as the prestressed cables anchored on the anchor tower section 100 are removed.

[0096] Since the tower crane 400 is relatively high, during the hoisting process, an arm support structure 500 is installed to connect the tower crane 400 every time a certain distance of concrete tower 300 is built. The tower section 200 on which the arm support structure 500 is installed is an anchoring tower section 100 or a joining tower section 210 adjacent to the anchoring tower section 100, which can withstand a larger lateral load, thereby ensuring the stability of the tower crane 400 during the hoisting process.

[0097] In the description of the present invention, it is necessary to understand that the terms "thickness", "up", "down", "vertical", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0098] In addition, features limited to "first", "second", and "third" may explicitly or implicitly include one or more of such features, and are used to distinguish and describe features, without any order or importance.

[0099] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0100] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] Figure 1 Two tower sections 200 are shown for illustrative purposes, but after reading the above technical solution, ordinary technicians can obviously understand that the solution can be applied to a technical solution with three or more tower sections 200, which also falls within the scope of protection of the present invention.

[0102] The connection between the anchoring tower section of the concrete tower and the tower section 200 of the concrete tower according to the embodiment of the present invention, as well as the insertion of prestressed cables, anchoring and other operations are well known to those skilled in the art and will not be described in detail here.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anchoring tower section of a concrete tower, characterized in that: The anchoring tower section is annular and includes a cylinder wall and an inner convex edge, wherein the inner convex edge is connected to the top of the cylinder wall and is formed by extending inwardly from a portion of the inner circumferential wall of the cylinder wall, wherein: The anchoring tower section is provided with a plurality of first prestressed holes and a plurality of second prestressed holes, and A plurality of the first prestressed holes are arranged spaced apart along the circumferential direction, each of the first prestressed holes is arranged in the cylinder wall, and each of the first prestressed holes extends upward from the bottom surface of the cylinder wall to the top surface of the cylinder wall, and A plurality of the second prestressed channels are arranged spaced apart along the circumferential direction, and each of the second prestressed channels is at least partially arranged in the inner convex edge, and the radial dimension of the inner convex edge is 1-2 times the radial dimension of the cylinder wall; wherein, The lower end of the second prestressed hole is connected to the adjacent first prestressed hole to form a branch of the first prestressed hole, or the lower end of the second prestressed hole extends to the bottom surface of the cylinder wall and is independent of the first prestressed hole. The barrel wall includes three sections from bottom to top: an equal thickness section, a transition section and a connecting section. The wall thickness of the equal thickness section is uniform. The transition section is connected to the top of the equal thickness section. The transition section extends obliquely upward toward the central axis of the anchor tower barrel section. The angle between the extension direction of the transition section and the vertical line is less than or equal to 30 degrees. The connecting section is connected to the top of the transition section, and the inner convex edge is connected to the inner circumferential wall of the connecting section.

2. The anchoring tower section of the concrete tower according to claim 1, characterized in that: When the second prestressed hole and the first prestressed hole are independent of each other, each of the second prestressed hole is staggered with the first prestressed hole in the circumferential direction.

3. The anchoring tower section of the concrete tower according to claim 1, characterized in that: The number of the first prestressed holes is an even number, the number of the second prestressed holes is half of the number of the first prestressed holes, and one second prestressed hole is provided between every two first prestressed holes.

4. The anchoring tower section of a concrete tower according to claim 1, characterized in that: The thickness of the inner convex edge gradually increases in the upward direction.

5. The anchoring tower section of the concrete tower according to claim 4, characterized in that: The inner convex edge is in the shape of a closed ring, and the vertical section of the inner convex edge is in the shape of a triangle.

6. A concrete tower, characterized in that: include: A plurality of tower sections, wherein the plurality of tower sections are sequentially connected from bottom to top, each of the tower sections is provided with a plurality of prestressed ducts penetrating from top to bottom, at least one of the tower sections is an anchoring tower section according to any one of claims 1 to 5, the tower section located above the anchoring tower section is connected to the cylinder wall of the anchoring tower section, and the number of the prestressed ducts of the tower section located above the anchoring tower section is equal to the number of the first prestressed ducts on the anchoring tower section; A plurality of prestressed cables are respectively arranged in a plurality of prestressed channels, the bottom end of each prestressed cable is fixed to the bottom of the concrete tower, the tops of some of the prestressed cables pass through the first prestressed channel and are fixed to the top of the concrete tower, and the tops of some of the prestressed cables pass through the second prestressed channel and are anchored to the anchoring tower section through an anchoring device.

7. The concrete tower according to claim 6, characterized in that: Each of the tower sections is a prefabricated tower section, and a plurality of the tower sections are assembled and connected.

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