A tower foundation reinforcing structure and a tower

Abstract

The application provides a tower foundation reinforcing structure and a tower. The tower foundation reinforcing structure comprises a first anchor bolt assembly, a second anchor bolt assembly, and a limiting assembly. The first anchor bolt assembly comprises a first anchor bolt. A first end of the first anchor bolt is fixed on a flange plate of the tower, and a second end of the first anchor bolt is anchored into a foundation of the tower. The second anchor bolt assembly comprises a second anchor bolt. A first end of the second anchor bolt is anchored into the foundation. The limiting assembly comprises a limiting plate and a reinforcing plate. The limiting plate is used for fixedly connecting the first anchor bolt assembly and the second anchor bolt assembly. The reinforcing plate is fixedly connected with the limiting plate and the second anchor bolt. The reinforcing plate is perpendicular to the limiting plate. The technical scheme of the application can solve the problem of increasing the economic construction cost of the tower and wasting resources caused by the mode of removing, scrapping the original tower foundation, and reconstructing the tower foundation after the rusting of the anchor bolt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of iron towers, and particularly relates to an iron tower foundation reinforcing structure and an iron tower. BACKGROUND

[0002] An iron tower is mainly composed of steel trusses and steel columns made of profile steel, steel plates and other components, and parts are usually connected by welding or bolts, which is simple and quick to construct. As an important component of the iron tower foundation, the anchor bolt plays an important role in stabilizing the iron tower. However, due to the long-term exposure of the anchor bolt to the sun, wind and rain, and the long-term wind load on the iron tower, the anchor bolt is prone to corrosion and corrosion damage, insufficient bearing capacity and other problems. At present, in view of the corrosion problem of the anchor bolt, the original tower foundation is usually removed, scrapped and reconstructed to solve the problem. Therefore, the economic construction cost of the iron tower is increased, resulting in waste of resources. SUMMARY

[0003] The iron tower foundation reinforcing structure and the iron tower provided by the embodiments of the present application solve the problems of increased economic construction cost of the iron tower and waste of resources caused by the removal, scrapping and reconstruction of the original tower foundation after the corrosion of the anchor bolt.

[0004] In order to solve the above technical problems, the present application is implemented as follows:

[0005] In a first aspect, the embodiments of the present application provide an iron tower foundation reinforcing structure

[0006] The first anchor bolt assembly comprises a first anchor bolt, a first end of the first anchor bolt is fixed on a flange plate of an iron tower, and a second end of the first anchor bolt is anchored into a foundation of the iron tower;

[0007] The second anchor bolt assembly comprises a second anchor bolt, a first end of the second anchor bolt is anchored into the foundation;

[0008] The limiting assembly comprises a limiting plate and a reinforcing plate, the limiting plate is used for fixedly connecting the first anchor bolt assembly and the second anchor bolt assembly, the reinforcing plate is fixedly connected with the limiting plate and the second anchor bolt, and the reinforcing plate is perpendicular to the limiting plate.

[0009] In a second aspect, the embodiments of the present application further provide an iron tower, which comprises a flange plate, a foundation and N iron tower foundation reinforcing structures according to any one of the first aspect, wherein N is an integer greater than 1.

[0010] In this embodiment, the limiting plate in the limiting assembly is fixedly connected to the first anchor bolt assembly and the second anchor bolt assembly, and a reinforcing plate is disposed on the limiting plate for fixing the second anchor bolt and the limiting plate. Thus, the second anchor bolt assembly can reinforce the tower's base structure relative to the original first anchor bolt assembly. When the tower experiences corrosion or other problems, its load-bearing capacity decreases. By adopting the tower base reinforcement structure of this application, the load-bearing capacity of the tower base can be effectively increased without dismantling or scrapping the original tower base and rebuilding a new one, thus extending the tower's service life, reducing the economic construction cost of the tower, and minimizing resource waste. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is one of the structural schematic diagrams of a tower foundation reinforcement structure provided in the embodiments of this application;

[0013] Figure 2 This is a second schematic diagram of a tower foundation reinforcement structure provided in an embodiment of this application;

[0014] Figure 3 This is the third structural schematic diagram of a tower foundation reinforcement structure provided in the embodiments of this application;

[0015] Figure 4 This is the fourth structural schematic diagram of a tower foundation reinforcement structure provided in the embodiments of this application;

[0016] Figure 5 Fifth schematic diagram of a tower foundation reinforcement structure provided in this application embodiment;

[0017] Figure 6 A sixth schematic diagram of a tower foundation reinforcement structure provided in this application embodiment;

[0018] Figure 7 This is a schematic diagram of the structure of a steel tower provided in an embodiment of this application;

[0019] Figure 8 for Figure 7 A schematic diagram of the structure of the second stiffening plate. Detailed Implementation

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as the common meanings thereof by those of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships are also changed accordingly.

[0022] The present application provides a tower foundation reinforcing structure, please refer to Figure 1 , Figure 1 The present application provides a tower foundation reinforcing structure, please refer to

[0023] The first anchor bolt assembly 1 comprises a first anchor bolt 11, the first end of the first anchor bolt 11 is fixed on the flange plate 42 of the tower, and the second end of the first anchor bolt 11 is anchored into the foundation 41 of the tower;

[0024] The second anchor bolt assembly 2 comprises a second anchor bolt 21, the first end of the second anchor bolt 21 is anchored into the foundation 41;

[0025] The limiting assembly 3 comprises a limiting plate 31 and a reinforcing plate 32, the limiting plate 31 is used for fixedly connecting the first anchor bolt assembly 1 and the second anchor bolt assembly 2, the reinforcing plate 32 is fixedly connected with the limiting plate 31 and the second anchor bolt 21, and the reinforcing plate 32 is perpendicular to the limiting plate 31.

[0026] Specifically, the tower foundation reinforcing structure in the application comprises a first anchor bolt assembly 1 and a second anchor bolt assembly 2 fixedly connected through a limiting assembly 3. The first anchor bolt assembly 1 can be an original anchor bolt assembly of a tower base, which plays an important role in stabilizing the tower as a basic fixed structure of the tower when the tower is initially constructed. The first anchor bolt assembly 1 can comprise a first anchor bolt 11, one end of which is fixed on a flange plate 42. The first anchor bolt 11 can be fixed at the one end to the flange plate 42 by using a fixing member. The position of the first anchor bolt 11 is fixed and does not change. The other end of the first anchor bolt 11 can be anchored into a foundation 41 of the tower. Therefore, the first end of the first anchor bolt 11 can be fixed on the flange plate 42, and the second end of the first anchor bolt 11 can be anchored into the foundation 41. The second anchor bolt assembly 2 can be an additional anchor bolt assembly when the bearing capacity of the tower base is insufficient. The second anchor bolt assembly 2 comprises a second anchor bolt 21, which needs to be fixed in the foundation 41. Therefore, the first end of the second anchor bolt 21 is anchored into the foundation 41, and the second anchor bolt assembly 21 is applied as an additional anchor bolt assembly of the tower base.

[0027] In the embodiment of the application, the limiting assembly 3 comprises a limiting plate 31 and a reinforcing plate 32. The limiting plate 31 can fixedly connect the first anchor bolt assembly 1 and the second anchor bolt assembly 2. The two ends of the limiting plate 31 can be fixedly connected with the first anchor bolt 11 and the second anchor bolt 21, respectively. When the bearing capacity of the first anchor bolt 11 is insufficient, the second anchor bolt assembly 2 is anchored in the tower foundation. The first anchor bolt assembly 1 and the second anchor bolt assembly 2 can work together and bear force cooperatively under the action of the limiting plate 31, so as to strengthen the bearing capacity of the tower base under the action of the original first anchor bolt assembly 1. Meanwhile, the reinforcing plate 32 can be fixed vertically on the limiting plate 31. The plane where the reinforcing plate 32 is located is perpendicular to the plane where the limiting plate 31 is located. Two adjacent sides of the reinforcing plate 32 are connected with the second anchor bolt 21 and the limiting plate 31, respectively. The reinforcing plate 32 can strengthen the connection between the limiting plate 31 and the second anchor bolt 21, so as to enhance the structural rigidity and overall stability.

[0028] Optionally, the second anchor bolt assembly 2 further comprises a first fixing assembly. The first fixing assembly comprises a first fixing member 22 and a fixing sleeve 23. The fixing sleeve 23 is sleeved on the second end of the second anchor bolt 21. The first fixing member 22 is arranged on the second end of the second anchor bolt 21 and above the fixing sleeve 23 to fix the fixing sleeve 23. The first end of the limiting plate 31 is fixedly connected with the fixing sleeve 23. The reinforcing plate 32 is fixedly connected with the fixing sleeve 23.

[0029] Please continue to refer to Figure 1The second anchor bolt assembly 2 further comprises a first fixing assembly, which can comprise a first fixing member 22 and a fixing sleeve 23. When the first end of the second anchor bolt 21 is anchored in the foundation 41, the fixing sleeve 23 is first sleeved on the second end of the second anchor bolt 21, and then the first fixing member 22 is used to fix the position of the fixing sleeve 23 so that the fixing sleeve 23 does not move away from the second end of the second anchor bolt 21. In addition, before the fixing sleeve 23 is fixed by the first fixing member 22, the fixing sleeve 23 can be moved in position along the extension direction of the second anchor bolt 21.

[0030] It is worth mentioning that one end of the limiting plate 31 is fixedly connected to the fixing sleeve 23, and the fixing sleeve 23 and the one end of the limiting plate 31 can be welded together. The part of the reinforcing plate 32 connected to the second anchor bolt 21 is mainly connected to the fixing sleeve 23, and one side of the reinforcing plate 32 is fixed to the outer side wall of the fixing sleeve 23. The fixing sleeve 23 can adjust the structure of the position of the limiting plate 31 according to actual reinforcement needs, and the position of the limiting plate 31 and the first anchor bolt 11 determines the position of the fixing sleeve 23. When the plane of the limiting plate 31 is parallel to the plane of the flange plate 42 of the tower, the fixing sleeve 23 is fixed at this position by the first fixing member 22. In this way, by adjusting the position of the fixing sleeve 23, different specifications of tower bases can be reinforced, which is convenient for operation and installation and has stronger structural stability.

[0031] Optionally, the first fixing assembly further comprises a gasket 24, which is sleeved on the second end of the second anchor bolt 21, and the gasket 24 is located between the first fixing member 22 and the fixing sleeve 23.

[0032] It should be understood that the gasket 24 is sleeved on the second end of the second anchor bolt 21, so that the gasket 24 is arranged between the first fixing member 22 and the fixing sleeve 23, which reduces the pressure, prevents the connection from loosening, and protects the parts and screws. For example, as shown in Figure 1 the gasket 24 can be welded on the port of the fixing sleeve 23, and arranging the gasket 24 at the end of the fixing sleeve 23 close to the first fixing member 22 can increase the contact area of the port of the fixing sleeve 23, reduce the pressure on the first fixing member 22, and increase the structural stability. The gasket can also be welded at the end of the fixing sleeve 23 close to the foundation, and when the position of the fixing sleeve 23 is close to the foundation, the gasket 24 separates the fixing sleeve 23 and the foundation 41, preventing the end of the fixing sleeve 23 from extending into the foundation due to pressure, thereby reducing the impact on the effect of the structural bearing capacity.

[0033] Optionally, the first anchor bolt assembly 1 comprises a second fixing member 12 and a third fixing member 13, the second fixing member 12 is used to fix the first end of the first anchor bolt 11 to the flange plate 42, the third fixing member 13 is arranged at the first end of the first anchor bolt 11 and above the second fixing member 12 to fix the second end of the limiting assembly 3, and the second end of the limiting assembly 3 is located between the second fixing member 12 and the third fixing member 13.

[0034] Specifically, referring to the embodiments in Figure 2 , the first anchor bolt 11 can be fixed to the flange plate 42 through the second fixing member 12, the first anchor bolt 11 and the second fixing member 12 function as the original anchor bolt assembly of the tower base, the positions of the original first anchor bolt 11 and the second fixing member 12 can not be changed, the second end of the limiting plate 31 is fixed above the second fixing member 12, the position of the second end of the limiting plate 31 is fixed by arranging the third fixing member 13 above the second end of the limiting plate 31, and thus the second end of the limiting plate 31 is arranged between the second fixing member 12 and the third fixing member 13. In this way, the structure of the original first anchor bolt 11 and the second fixing member 12 can not be changed, the second end of the limiting plate 31 is directly fixed above the position of the first end of the first anchor bolt 11 of the second fixing member 12, and the position of the second end of the limiting plate 31 is fixed by the newly added third fixing member 13, the structure is simple and convenient to install, the existing structure is fully utilized to reinforce the tower base, and the waste of resources is reduced.

[0035] It is worth mentioning that the fixing members in the present application, including the first fixing member 22, the second fixing member 12 and the third fixing member 13, can be fixing nuts, and threads can be arranged at the first end of the first anchor bolt 11 and the second end of the second anchor bolt 21, so that the fixing members can be fixed to the first anchor bolt 11 and the second anchor bolt 21 by assembling the threaded nuts. The present application does not limit the category of the fixing members used, which can be determined according to actual needs.

[0036] Optionally, one end of the limiting plate 31 is provided with a first limiting hole 311, the other end of the limiting plate 31 is provided with a second limiting hole 312, the first end of the first anchor bolt 11 penetrates through the first limiting hole 311, the second anchor bolt 21 and the fixing sleeve 23 penetrate through the second limiting hole 312, and the fixing sleeve 23 is fixedly connected with the second limiting hole 312.

[0037] In one embodiment of the present application, limiting holes are arranged at both ends of the limiting plate 31, wherein the first limiting hole 311 is arranged to facilitate the first end of the first anchor bolt 11 to pass through, and the second end of the limiting plate 31 can be fixed on the first anchor bolt 11. The other end of the limiting plate 31 is provided with a second limiting hole 312, and the second anchor bolt 21 and the fixing sleeve 23 can pass through the second limiting hole 312. First, the fixing sleeve 23 passes through the second limiting hole 312, and the peripheral part of the second limiting hole 312 can be welded with the outer periphery of the fixing sleeve 23, so that the fixing sleeve 23 is inserted into the second limiting hole 312, and the fixing sleeve 23 and the limiting plate 31 become an integral structure, and then the fixing sleeve 23 is sleeved on the second end of the second anchor bolt 21. In this way, the first anchor bolt 11 and the second anchor bolt 21 are connected through the first limiting hole 311 and the second limiting hole 312 respectively, the structural stability is high, the construction difficulty is small, and the installation is convenient.

[0038] Optionally, the line connecting the center of the first limiting hole 311 and the center of the second limiting hole 312 is parallel to the extension line of the diameter of the flange plate 42.

[0039] Specifically, the line connecting the center of the first limiting hole 311 and the center of the second limiting hole 312 is parallel to the extension line of the diameter of the flange plate 42, that is, as shown in Figure 3 the center of the flange plate 42, the first anchor bolt 11 and the second anchor bolt 21 can be on a straight line. In this way, when all the anchor bolts of the original iron tower base need to be reinforced, all the newly added second anchor bolts 21 can be evenly arranged, the bearing capacity of the iron tower base is enhanced, and the stress balance is achieved.

[0040] Optionally, an external flange plate 45 is further included, and the external flange plate 45 is fixedly connected to the periphery of the flange plate 42, and the second anchor bolt assembly 2 is fixed on the external flange plate 45.

[0041] Please refer to Figure 4 In one specific embodiment of the present application, a circular ring structure can be arranged outside the flange plate 42, which can be fixedly connected to the periphery of the flange plate 42 to become an external flange plate 45 of the flange plate 42. In this way, the diameter of the flange plate 42 can be increased, the area of the iron tower base can be expanded, the fixing of the second anchor bolt 21 can be facilitated, and a complete structure with high stability can be formed.

[0042] Based on the above specific embodiment, the lower surface of the limiting plate 31 can be welded to the external flange plate 45 and the original flange plate 42 after the external flange plate 45. Specifically, the first end of the limiting plate 31 can be fixed on the external flange plate 45, and the second end of the limiting plate 31 can be fixed on the original flange plate 42, which can effectively improve the structural rigidity and enhance the integrity of the structure.

[0043] Please refer to Figure 5 and Figure 6 As an optional embodiment, the maximum tension of the first anchor bolt and the maximum tension of the second anchor bolt can be calculated by the following formula:

[0044]

[0045]

[0046] wherein, N t1 max is the maximum tension of the first anchor bolt;

[0047] λ is a proportional coefficient;

[0048] M0 is the design value of the bending moment of the tower base;

[0049] N is the design value of the gravity of the tower;

[0050] e is the distance from the center of gravity of the tower base to the rotating center axis of the anchor bolt group of the tower;

[0051] y 1n is the distance from the rotating center axis of the first anchor bolt to the farthest first anchor bolt;

[0052] y 1i is the distance from the rotating center axis of the first anchor bolt to the i-th first anchor bolt;

[0053] N t2 max is the maximum tension of the second anchor bolt;

[0054] y 2n is the distance from the rotating center axis of the second anchor bolt to the farthest second anchor bolt;

[0055] y 2i is the distance from the rotating center axis of the second anchor bolt to the i-th second anchor bolt;

[0056] wherein, the above formula can also be expressed as:

[0057]

[0058]

[0059] wherein, d1 is the effective diameter of the first anchor bolt;

[0060] d2 is the effective diameter of the second anchor bolt;

[0061] E1 is the elastic modulus of the first anchor bolt;

[0062] E2 is the elastic modulus of the second anchor bolt;

[0063] It should be noted that the maximum tensile force N of the first anchor bolt mentioned above... t1 max and the maximum tensile force N of the second anchor bolt t2 max The calculation formula can introduce a proportionality coefficient λ, which allows the effective diameter d1 and elastic modulus E1 of the first anchor bolt, and the effective diameter d2 and elastic modulus E2 of the second anchor bolt, to be respectively incorporated into the formula for calculating the maximum tensile force. In practical applications, the maximum tensile force of towers using anchor bolts of different specifications can be calculated using the above formula to design anchor bolts that meet the bearing capacity requirements of the tower base. The proportionality coefficient λ can be calculated using the following formula:

[0064] The maximum tensile force of the first anchor bolt or the maximum tensile force of the second anchor bolt can also be expressed by the following formula:

[0065] N t max =σ·A

[0066] Where, N t max This represents the maximum tensile force of the anchor bolt.

[0067] σ represents the stress of the anchor bolt;

[0068] A is the cross-sectional area of ​​the anchor bolt;

[0069] The stress-strain relationship of the anchor bolts is as follows:

[0070]

[0071] Wherein, ΔL is the elongation change of the first anchor bolt or the elongation change of the second anchor bolt;

[0072] L is the distance from the first anchor bolt to the surface of the tower foundation or the distance from the second anchor bolt to the surface of the tower foundation;

[0073] Therefore, the maximum tensile force of the first anchor bolt or the maximum tensile force of the second anchor bolt can be replaced by the following formula:

[0074]

[0075] Therefore, the maximum tensile force N of the first anchor bolt t1max The maximum tension N of the second anchor bolt can be expressed as the following formula:

[0076]

[0077] The maximum tension N of the second anchor bolt can be expressed as the following formula: t2 max The maximum tension N of the second anchor bolt can be expressed as the following formula:

[0078]

[0079] wherein ΔL1 is the bolt elongation change amount of the first anchor bolt;

[0080] ΔL2 is the bolt elongation change amount of the second anchor bolt;

[0081] The bending moment design value M1 of the first anchor bolt can be obtained as the following formula:

[0082]

[0083] The bending moment design value M2 of the second anchor bolt can be obtained as the following formula:

[0084]

[0085] It is worth mentioning that the sum of the bending moment design value of the first anchor bolt and the bending moment design value of the second anchor bolt is equal to the value of the bending moment of the tower body in the tower base, and the two are bending moments in opposite directions, which can offset each other, and can be expressed as the following formula:

[0086] M = M0 - N·e

[0087] M = M1 + M2

[0088] wherein M is the actual design value of the tower base;

[0089] In the embodiments of the present application, the proportionality coefficient λ introduced can be obtained by the ratio of the bending moment design value of the first anchor bolt to the bending moment design value of the second anchor bolt, and can be expressed as the following formula:

[0090]

[0091] Assuming that the flange stiffness is large and the deformation is ignored, according to the similar triangle, the following formula exists:

[0092]

[0093] Therefore, the above proportionality coefficient λ can be expressed as the following formula:

[0094]

[0095] The proportional coefficient of the first anchor bolt is expressed by the following formula:

[0096]

[0097] The proportional coefficient of the second anchor bolt is expressed by the following formula:

[0098]

[0099] wherein λ1 is the proportional coefficient of the first anchor bolt;

[0100] λ2 is the proportional coefficient of the second anchor bolt;

[0101] Based on the foregoing formula, the following formula can be obtained:

[0102]

[0103]

[0104] The bending moment design value of the first anchor bolt and the bending moment design value of the second anchor bolt are substituted into the calculation formula of the anchor bolt, respectively, to obtain:

[0105]

[0106]

[0107] wherein, is the tensile bearing capacity of the first anchor bolt; is the tensile bearing capacity of the second anchor bolt.

[0108] It should be noted that after the maximum tension of the first anchor bolt and the maximum tension of the second anchor bolt are determined by the above formula, the tensile bearing capacity of the anchor bolt in actual use can be designed. In the case where the specific design value is greater than the maximum tension, the bearing support function of the tower can be met. Specifically, the ratio of the bending moment design value of the first anchor bolt and the bending moment design value of the second anchor bolt is taken as the proportional coefficient, and the proportional coefficient is introduced into the calculation of the maximum tension of the first anchor bolt and the maximum tension of the second anchor bolt, and the proportional coefficient contains the elongation change amount or effective diameter of the first anchor bolt or the elongation change amount or effective diameter of the second anchor bolt. The elongation change amount and the effective diameter of the anchor bolt are directly applied to the existing calculation formula by the above formula, and the maximum tension of the anchor bolt of different specifications can be determined by the above formula, which is used to determine the bearing capacity design value of the first anchor bolt and the bearing capacity design value of the second anchor bolt in actual application.

[0109] In still another embodiment of the present application, a tower is provided, which comprises a flange plate 42, a foundation 41 and N tower foundation reinforcing structures as described in the above embodiments, wherein N is an integer greater than 1.

[0110] In the above embodiments of the present application, a tower is provided, which is installed with N tower foundation reinforcing structures as described in the above embodiments, and the N tower foundation reinforcing structures are evenly arranged around the flange plate 42, as shown in Figure 4 Alternatively, a single or N tower foundation reinforcing structures can be used to locally reinforce the tower base, and the present application does not limit the number and arrangement of the tower foundation reinforcing structures, which can be used according to actual needs. Since the tower foundation reinforcing structure as described in the above embodiments is used in the present embodiment, the tower provided in the present embodiment has all the beneficial effects of the above embodiments.

[0111] Optionally, in the case where the tower foundation reinforcing structure comprises an external flange plate 45, the tower comprises a first stiffening plate 44, which is fixedly connected with the flange plate 42 and the tower body 43 of the tower, and the first stiffening plate 44 is fixedly connected with the flange plate 42 perpendicularly;

[0112] The tower foundation reinforcing structure further comprises a second stiffening plate 46, which is fixedly connected with the flange plate 42 perpendicularly, and the second stiffening plate 46 is fixedly connected with the edge portion of the first stiffening plate 44, and the second stiffening plate 46 and the first stiffening plate 44 are located in the same plane.

[0113] Please refer to Figure 7 The tower as described in the above embodiments comprises a foundation 41, a first stiffening plate 44, a flange plate 42 and a tower foundation reinforcing structure, and in the case where the tower foundation reinforcing structure comprises an external flange plate 45, an external stiffening plate can be connected with the original first stiffening plate 44 of the tower, as shown in Figure 8As shown, the stiffening plate is a second stiffening plate 46. The second stiffening plate 46 can be fixed perpendicularly to the outer flange plate 45, and the first stiffening plate 44 can be connected to the edge portion of the second stiffening plate 46. The edge portion of the first stiffening plate 44 can be the side edge not connected to the tower and the flange plate 42, and thus each side edge of the first stiffening plate 44 can be connected to the flange plate 42, the tower body 43 and the second stiffening plate 46 respectively, and the first stiffening plate 44 is enclosed by the flange plate 42, the tower body 43 and the second stiffening plate 46. The thickness of the second stiffening plate 46 can be consistent with the thickness of the first stiffening plate 44, the plane where the first stiffening plate 44 is located is consistent with the plane where the second stiffening plate 46 is located, and the second stiffening plate 46 can extend on the plane, and the side edge of the second stiffening plate 46 on the outer flange plate 45 can extend to the edge of the outer flange plate 45. In this way, the structural strength and stability of the tower foundation can be enhanced under the action of the second stiffening plate 46, and the construction cost can be reduced and the existing resources can be fully utilized.

[0114] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description 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.

[0115] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0116] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A reinforcement structure for a steel tower foundation, characterized in that, include: The first anchor bolt assembly includes a first anchor bolt, the first end of which is fixed to the flange of the tower, and the second end of which extends into the foundation of the tower for anchoring. The second anchor bolt assembly includes a second anchor bolt, the first end of which extends into the foundation for anchoring. A limiting assembly includes a limiting plate and a reinforcing plate. The limiting plate is used to fixably connect the first anchor bolt assembly and the second anchor bolt assembly. The reinforcing plate is fixedly connected to the limiting plate and the second anchor bolt assembly, and the reinforcing plate is perpendicular to the limiting plate. The second anchor bolt assembly further includes a first fixing assembly, which includes a first fixing member and a fixing sleeve. The fixing sleeve is sleeved on the second end of the second anchor bolt. The first fixing member is located at the second end of the second anchor bolt and above the fixing sleeve to fix the fixing sleeve. The first end of the limiting plate is fixedly connected to the fixing sleeve, and the reinforcing plate is fixedly connected to the fixing sleeve. The first fixing component further includes a washer, which is sleeved on the second end of the second anchor bolt and is located between the first fixing member and the fixing sleeve.

2. The tower foundation reinforcement structure according to claim 1, characterized in that, The first anchor bolt assembly includes a second fixing member and a third fixing member. The second fixing member is used to fix the first end of the first anchor bolt to the flange. The third fixing member is disposed at the first end of the first anchor bolt and above the second fixing member to fix the second end of the limiting assembly. The second end of the limiting assembly is located between the second fixing member and the third fixing member.

3. The tower foundation reinforcement structure according to claim 1, characterized in that, One end of the limiting plate is provided with a first limiting hole, and the other end of the limiting plate is provided with a second limiting hole. The first end of the first anchor bolt passes through the first limiting hole, and the second anchor bolt and the fixing sleeve pass through the second limiting hole, and the fixing sleeve is fixedly connected to the second limiting hole.

4. The tower foundation reinforcement structure according to claim 3, characterized in that, The line connecting the center of the first limiting hole and the center of the second limiting hole is parallel to the extension line of the flange diameter.

5. The tower foundation reinforcement structure according to claim 1, characterized in that, It also includes an external flange, which is fixedly connected to the periphery of the flange, and the second anchor bolt assembly is fixed to the external flange.

6. The tower foundation reinforcement structure according to claim 1, characterized in that, The tensile bearing capacity of the first anchor bolt is expressed by the following formula: Where, N t1max This is the maximum tensile force of the first anchor bolt; λ is the proportionality coefficient; M0 is the design value of the bending moment of the tower base; N is the design gravity value of the tower; e is the distance from the center of gravity of the tower base to the rotation center axis of the anchor bolt group of the tower; y 1n The distance from the rotation center axis of the first anchor bolt to the farthest first anchor bolt; y 1i The distance from the rotation center axis of the first anchor bolt to the i-th first anchor bolt; This represents the tensile bearing capacity of the first anchor bolt. The tensile bearing capacity of the second anchor bolt is expressed by the following formula: Where, N t2max This represents the maximum tensile force of the second anchor bolt; y 2n The distance from the rotation center axis of the second anchor bolt to the farthest second anchor bolt; y 2i The distance from the rotation center axis of the second anchor bolt to the i-th second anchor bolt; This represents the tensile bearing capacity of the second anchor bolt. The proportionality coefficient λ is calculated using the following formula: Where M1 is the design value of the bending moment of the first anchor bolt; M2 is the design value of the bending moment for the second anchor bolt; d1 is the effective diameter of the first anchor bolt; d2 is the effective diameter of the second anchor bolt; E1 is the elastic modulus of the first anchor bolt; E2 is the elastic modulus of the second anchor bolt; ΔL1 represents the change in bolt elongation of the first anchor bolt; ΔL2 represents the change in bolt elongation of the second anchor bolt; The proportional coefficient of the first anchor bolt is expressed by the following formula: The proportional coefficient of the second anchor bolt is expressed by the following formula: Where M is the actual design value of the tower base; λ1 is the proportional coefficient of the first anchor bolt; λ2 is the proportional coefficient of the second anchor bolt; The design value of the bending moment M1 of the first anchor bolt is expressed by the following formula: The design value of the bending moment M1 of the first anchor bolt is expressed by the following formula: Among them, the maximum tensile force N of the first anchor bolt t1max This can be expressed as the following formula: The maximum tensile force N of the second anchor bolt t2max This can be expressed as the following formula: Wherein, L is the distance from the first anchor bolt to the surface of the tower foundation or the distance from the second anchor bolt to the surface of the tower foundation.

7. A type of iron tower, characterized in that, The iron tower includes a flange, a foundation, and N iron tower foundation reinforcement structures as described in any one of claims 1 to 6, wherein N is an integer greater than 1.

8. The iron tower according to claim 7, characterized in that, When the reinforcement structure of the tower foundation includes an external flange, the tower includes a first stiffening plate, which is fixedly connected to the flange and the tower body, and the first stiffening plate is fixed perpendicularly to the flange. The tower foundation reinforcement structure also includes a second stiffening plate, which is vertically fixed to the external flange and is fixedly connected to the edge portion of the first stiffening plate. The second stiffening plate and the first stiffening plate are located on the same plane.

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