Iron tower column foot reinforcing device

Abstract

The invention discloses an iron tower column foot reinforcing device which comprises a steel plate hoop, a fastening bolt, a vertical adjusting bolt, a horizontal puller bolt and a cushion block. The steel plate hoop is composed of a vertical plate, stiffening plates and horizontal inserts, the vertical plate is integrally L-shaped, outward 90-degree folded edges are arranged on two sides of the vertical plate, a plurality of bolt holes and a plurality of horizontal stiffening plates are arranged on the folded edges, a rectangular hole is formed in the upper portion of the vertical plate, the horizontal inserts are embedded, welded and fixed at the rectangular hole, and through horizontal threaded holes are formed in two sides of the horizontal inserts. A vertically through vertical threaded hole is formed in the middle; the vertical adjusting bolt is installed through the vertical threaded hole of the horizontal insert and used for adjusting the height of the steel plate hoop so that the horizontal insert can be aligned to the bottom face of the iron tower column foot bottom plate. The periphery of the iron tower column base bottom plate is fixed, and horizontal displacement cannot be generated; and the quality risk caused by secondary concrete pouring and the inconvenience caused by chiseling for iron tower maintenance are avoided, and the applicability is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of iron tower reinforcement, in particular to an iron tower column foot reinforcement device. BACKGROUND

[0002] With the rapid development of communication, power, railway, and radio and television industries, there are more and more iron towers as antenna equipment supports. Most of these iron towers are connected with the foundation by foundation bolts. In order to facilitate the adjustment of the perpendicularity of the iron tower, a certain gap is usually reserved between the bottom plate of the iron tower column foot and the top surface of the foundation column. After the installation of the iron tower is completed, the reserved gap is poured with concrete again. The disadvantage of this method is that the pouring quality is difficult to control. If it is not dense or has cracks, rainwater will seep in, and the foundation bolt will be more prone to rust. In addition, when the iron tower is regularly detected and maintained, the original secondary pouring needs to be chipped off, which is time-consuming and laborious and very inconvenient. However, if the secondary pouring is not performed, the foundation bolt lacks protection, and under the action of horizontal force, the foundation bolt is prone to bending and damage, which is very unsafe.

[0003] For example, the Chinese utility model patent application No. CN202420241527.2 discloses a communication iron tower bottom reinforcement device, which comprises a masonry base, an iron tower column body, a pre-buried stud, and a No. 1 locking nut, and further comprises a fixing block, a mounting block, an inclined support rod, an inclined push rod, and a reverse L-shaped pressing block. A plurality of fixing blocks are fixed on the iron tower column body at equal intervals in the circumferential direction. The mounting block is fixed on the fixing block. The bottom end of the inclined support rod is hinged to the masonry base, and the top end is hinged to the mounting block. When the mounting block is fixed on the fixing block, the reverse L-shaped pressing block presses the top surface edge position of the fixing seat, and there is also a force pushing the fixing seat inward. The stress is uniform, and the stability is greatly improved. The anti-collision frame and the W-shaped elastic sheet are arranged to provide safety protection for the iron tower column body, avoid damage caused by direct impact of the iron tower column body, and greatly improve the safety.

[0004] For another example, the Chinese utility model patent application No. CN202222767634.2 discloses a portable foundation bolt reinforcement device, which comprises a communication iron tower column, a bottom plate welded to the outer side of the communication iron tower column, and a concrete pile foundation fixedly connected to the lower part of the communication iron tower column. An expansion bolt is connected between the bottom plate and the concrete pile foundation. A fixing clamp device is installed on the outer side of the bottom plate. The fixing clamp device includes a foundation bolt. The fixing clamp device is installed on the outer side of the bottom plate to fix and clamp the bottom plate. The fixing clamp device includes a foundation bolt. The lower part of the foundation bolt is fixedly connected to the concrete pile foundation. The upper clamp plate and the lower clamp plate are tightened by the bolt to reinforce the bottom plate and the communication iron tower column, and the installation is convenient.

[0005] For example, Chinese invention patent application No. CN202311612212.0 discloses a communication tower reinforcing device, which comprises a base block, a first fixing block is fixedly installed at the top of the base block, a first support column is arranged between a plurality of first fixing blocks, a first connecting block and a second connecting block are movably installed at the outer top edge of the first support column, the first connecting ring plate, the second connecting ring plate, the convex column, the first insertion slot, the second insertion slot, and the first connecting block and the second connecting block are rotated and approached, the connecting rib and the connecting slot are connected, the first connecting plate and the second connecting plate are approached, and the bolt column and the bolt connecting hole are connected, so that the first connecting block and the second connecting block are fixed on the first connecting ring plate and the second connecting ring plate, the first support column and the second support column are connected and fastened, and the reinforcing effect on the communication tower is achieved.

[0006] In the prior art, if a fixing block needs to be arranged on the iron tower column, the fixing block is not installed on the iron tower when it is delivered from the factory, so that welding needs to be performed on site, and the galvanized layer of the tower column is damaged, which is not allowed in most cases, for example, the bottom end of the inclined support rod is hinged to the masonry base, and the fixing point is not reserved on the basis of most iron towers, so that drilling and rebar planting operations need to be performed on the concrete base in the later period, and the construction is relatively complicated, for example, the anti-collision frame needs to be sleeved on the masonry base before the tower column is installed, and the anti-collision frame cannot be installed on the built iron tower. SUMMARY

[0007] The iron tower column foot reinforcing device provided by the present application solves the problems in the prior art.

[0008] The iron tower column foot reinforcing device comprises a steel plate hoop, a fastening bolt, a vertical adjusting bolt, a horizontal clamping bolt, and a pad. The steel plate hoop is composed of a vertical plate, a stiffener plate, and a horizontal inlay block, the vertical plate is in the shape of L as a whole, the two sides are provided with outward 90° folded edges, a plurality of bolt holes are arranged on the folded edges, a plurality of horizontal stiffener plates are arranged, a rectangular hole is formed in the upper part of the vertical plate, the horizontal inlay block is inlaid and fixed by welding at the rectangular hole, through holes are formed in the two sides of the horizontal inlay block, and vertical threaded holes are formed in the middle of the horizontal inlay block. The vertical adjusting bolt is installed through the vertical threaded holes of the horizontal inlay block, and is used for adjusting the height of the steel plate hoop, so that the horizontal inlay block is aligned with the bottom surface of the iron tower column foot bottom plate. The horizontal clamping bolt is inserted through the horizontal threaded holes of the horizontal inlay block, and the pad is installed at the corresponding position of the iron tower column foot bottom plate, and a plurality of horizontal clamping bolts are used for clamping a plurality of pads to the side surface of the iron tower column foot bottom plate, so as to limit the horizontal displacement of the iron tower column foot bottom plate.

[0009] Further, the four steel plate hoops are a group, connected by fastening bolts to form a rectangular frame, used for clamping on the square foundation column head; Or the steel plate hoop is a group of two pieces, each piece is U-shaped, suitable for the foundation column head with smaller width.

[0010] Further, the number of horizontal jacking bolts and pads is 8, which are evenly distributed in four directions around the tower column foot plate, and two are arranged in each direction.

[0011] Further, the tower column foot reinforcing device is suitable for circular foundation column head or circular tower column foot plate, and the arc of the steel plate hoop matches the contour of the circular foundation column head.

[0012] Further, the top of the horizontal jacking bolt is connected with a pressure sensor for real-time monitoring of the horizontal force on the tower column foot plate.

[0013] Further, the thread position of the vertical adjusting bolt is marked with a scale, and by observing the displacement change of the thread after tightening, it can be judged whether the foundation column head has settled.

[0014] Further, the pad is a metal rigid pad, which is shaped to fit the edge of the tower column foot plate, ensuring that the jacking force of the horizontal jacking bolt is evenly transmitted to the tower column foot plate.

[0015] Further, the pad is U-shaped, and the opening width is slightly larger than the thickness of the tower column foot plate.

[0016] Further, the end of the horizontal jacking bolt is conical, and the U-shaped groove part of the pad is provided with a conical hole.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The tower column foot reinforcing device of the present application, through 8 evenly distributed horizontal jacking bolts and metal pads fitted to the tower column foot plate, forms a rigid jacking from four directions around the tower column foot plate, directly limiting the horizontal displacement of the plate, this scheme enables the horizontal force of the tower to be directly transmitted to the foundation column head through the reinforcing device, avoiding the bending of the anchor bolt due to the sole bearing of the horizontal force, significantly reducing the safety hazard of the suspended anchor bolt, and solving the protection problem of the built tower anchor bolt; 2. The tower column foot reinforcing device of the present application, by adopting a detachable steel plate hoop splicing structure, fastening bolts are used to assemble the steel plate hoop without welding; the height is adjusted by the vertical adjusting bolt, without foundation pretreatment, and the horizontal jacking bolt directly jacks the pad, without on-site welding, anchor rod planting or foundation chiseling operation, which is suitable for the reinforcing needs of the built tower, greatly shortens the construction period, and reduces the damage risk to the original structure of the tower; 3. The iron tower column foot reinforcing device, aiming at the size difference of the foundation column head, provides four rectangular steel plate hoops, adapts to square foundation, two U-shaped steel plate hoops, adapts to narrow width foundation, breaks the single limitation of the size of the foundation in the prior art; the arc of the steel plate hoop can match the circular foundation column head or the circular tower foot bottom plate, overcoming the defect that the existing reinforcing device is only suitable for square structure; the vertical adjusting bolt can accurately adjust the height of the steel plate hoop, so that the horizontal insert block is aligned with the tower foot bottom plate, and the horizontal jacking bolt can flexibly compensate the horizontal direction error, adapting to the common installation deviation problem of the iron tower column foot; 4. The iron tower column foot reinforcing device, by connecting a pressure sensor at the top of the horizontal jacking bolt, the horizontal force borne by the tower foot bottom plate can be monitored in real time, and abnormal stress can be warned in time; at the same time, a scale is arranged at the thread of the vertical adjusting bolt, the settlement of the foundation column head can be directly judged by observing the displacement change of the thread, the double monitoring of the reinforcing effect and the foundation state is realized, the short board that the existing reinforcing device only reinforces without monitoring is solved, and the long-term operation safety of the iron tower is improved; 5. The iron tower column foot reinforcing device, the gasket adopts a U-shaped metal rigid structure, the opening width is adapted to the thickness of the tower foot bottom plate, the groove is closely fitted with the edge of the bottom plate, so that the jacking force of the horizontal jacking bolt is uniformly transmitted to the bottom plate, and local stress concentration is avoided; the end of the horizontal jacking bolt is conical, and a conical through hole is formed in the corresponding position of the gasket, so that the fitting degree of the bolt and the gasket is improved, and the risk of slipping during jacking is reduced; the vertical plate is provided with a horizontal stiffener, the overall rigidity of the steel plate hoop is enhanced, the deformation of the reinforcing device itself is avoided, the stable horizontal force transmission path is ensured, and the stress structure of the simple inclined support in the prior art is superior. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional structure schematic diagram of the iron tower column foot reinforcing device; Figure 2 is Figure 1 is a front side elevation structure schematic diagram; Figure 3 is Figure 2 is a top view structure schematic diagram; Figure 4 is Figure 1 is an enlarged three-dimensional structure schematic diagram of the horizontal insert block; Figure 5-a and Figure 5-b is Figure 1 is a three-dimensional structure schematic diagram of the connection between the horizontal jacking bolt and the gasket; MARKING OF THE DRAWINGS: 1, steel plate hoop; 2, fastening bolt; 3, vertical adjusting bolt; 4, horizontal clamping bolt; 5, cushion block; 101, vertical plate; 102, stiffener; 103, horizontal insert block; 104, horizontal threaded hole; 105, vertical threaded hole; 8, foundation column head; 9, tower column foot; 10, anchor bolt; 11, tower column foot bottom plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] The tower column foot reinforcing device provided by the present application overcomes the shortcomings of the prior art, and provides a tower column foot 9 reinforcing device which is more convenient to install without field welding and anchor bar planting for the built tower; the device of the present application adopts a detachable metal structure to reinforce the tower column foot, fixes the periphery of the tower column foot bottom plate 11, and does not cause horizontal displacement, so that the horizontal force of the tower is directly transmitted from the tower column foot bottom plate 11 to the foundation column head 8 through the above-mentioned tower column foot reinforcing device, thereby avoiding the risk of bending of the anchor bolt 10 due to the horizontal force and avoiding the safety hazard of the tower anchor bolt 10 in the suspended and unprotected state, and the stress of the tower column foot and the settlement of the tower foundation can also be monitored.

[0021] As shown in Figures 1 to 3 the tower column foot reinforcing device, which comprises a steel plate hoop 1, a fastening bolt 2, a vertical adjusting bolt 3, a horizontal clamping bolt 4, and a cushion block 5; The steel plate hoop 1 is composed of a vertical plate 101, a stiffener 102, and a horizontal insert block 103, the vertical plate 101 is in the shape of L as a whole, the two sides are provided with outward 90° folded edges, a plurality of bolt holes are arranged on the folded edges, a plurality of horizontal stiffeners 102 are arranged, a rectangular hole is formed in the upper part of the vertical plate 101, the horizontal insert block 103 is embedded and welded and fixed at the rectangular hole, a horizontal threaded hole 104 is formed through the two sides of the horizontal insert block 103, and a vertical threaded hole 105 is formed through the middle; The vertical adjusting bolt 3 is installed through the vertical threaded hole 105 of the horizontal insert block 103, and is used for adjusting the height of the steel plate hoop, so that the horizontal insert block 103 is aligned with the bottom surface of the tower column foot bottom plate 11; The horizontal clamping bolt 4 is inserted through the horizontal threaded hole 104 of the horizontal insert block 103, and the cushion block 5 is installed at the corresponding position of the tower column foot bottom plate 11, and a plurality of horizontal clamping bolts 4 are used for clamping a plurality of cushion blocks 5 to the side surface of the tower column foot bottom plate 11, so as to limit the horizontal displacement of the tower column foot bottom plate 11; Specifically, the vertical plate 101 is in the shape of L as a whole, and the two sides are provided with 90° folded edges, the folded edges are integrally formed with the vertical plate 101, and a plurality of bolt holes are formed in the folded edges; a rectangular hole is formed in the upper part of the vertical plate 101, and the horizontal insert block 103 is fixed at the rectangular hole of the vertical plate 101 by means of inlay welding, so that the horizontal insert block 103 is firmly connected with the vertical plate 101 as a whole; a plurality of stiffening plates 102 are arranged on the vertical plate 101, and the stiffening plates 102 play a role in enhancing the strength and stability of the vertical plate 101; the stiffening plates 102 are usually fixedly connected with the vertical plate 101 by welding; The steel plate hoop 1 is composed of a plurality of parts of the vertical plate 101, the stiffening plate 102 and the horizontal insert block 103, and is connected by the fastening bolt 2 passing through the bolt hole in the folded edge, so as to be enclosed into a ring structure, and is used for being hooped on the base column head 8 of the iron tower; the vertical adjusting bolt 3 is inserted into the vertical threaded hole 105 of the horizontal insert block 103, and by rotating the vertical adjusting bolt 3, the vertical adjusting bolt 3 can be moved up and down in the vertical threaded hole 105, so as to adjust the height of the steel plate hoop 1; the horizontal jacking bolt 4 is inserted into the horizontal threaded hole 104 of the horizontal insert block 103, and the front end of the horizontal jacking bolt 4 is used for jacking the gasket 5 installed at the corresponding position of the iron tower column foot bottom plate 11, and by tightening the horizontal jacking bolt 4, the gasket 5 can be tightly jacked against the side surface of the iron tower column foot bottom plate 11; The steel plate hoop 1 is the core support structure of the entire reinforcing device, and is hooped on the base column head by four pieces in a ring shape, so as to provide a basic frame for subsequent reinforcing operation, and plays a role in fixing and restraining the iron tower column foot bottom plate 11; the L-shaped vertical plate 101 is matched with the shape of the base column head 8, the bolt holes in the folded edges are used for installing the fastening bolt 2, and the connection and fixation between the parts of the steel plate hoop 1 are realized; the rectangular hole in the vertical plate 101 is used for installing the horizontal insert block 103; A plurality of horizontal stiffening plates 102 are arranged on the vertical plate 101, so as to enhance the strength and rigidity of the vertical plate 101, ensure that the steel plate hoop 1 will not be deformed when bearing the force transmitted from the iron tower column foot 9, and improve the overall stability of the steel plate hoop 1; As shown in Figure 4 The horizontal insert block 103 is inlay welded at the rectangular hole of the vertical plate 101, the horizontal threaded holes 104 on the two sides and the vertical threaded hole 105 in the middle provide installation positions for the horizontal jacking bolt 4 and the vertical adjusting bolt 3 respectively, and are key components for realizing the functions of horizontal jacking and vertical adjusting; The fastening bolt 2 is used for connecting the vertical plates 101 of the steel plate hoop 1, and tightly connects the plurality of vertical plates 101 together by passing through the bolt holes in the folded edges, so as to form a complete ring structure, so that the steel plate hoop 1 can be firmly hooped on the base column head 8, and the steel plate hoop 1 is prevented from loosening; Vertical adjusting bolt 3 passes through vertical threaded hole 105 of horizontal insert block 103, by rotating vertical adjusting bolt 3, its position in vertical threaded hole 105 can be adjusted, so as to adjust the overall height of steel plate hoop 1, make horizontal insert block 103 align with the bottom surface of tower column foot bottom plate 11, ensure the accuracy of subsequent horizontal tightening operation, so as to adapt to the possible installation height error of tower column foot 9 in the vertical direction of foundation column head 8; As shown in Figure 5-a and Figure 5-b Horizontal tightening bolt 4 passes through horizontal threaded hole 104 of horizontal insert block 103, which functions to tighten the gasket 5 installed at the corresponding position of tower column foot bottom plate 11, through the joint action of multiple horizontal tightening bolts 4, the periphery of tower column foot bottom plate 11 is tightly fixed, the horizontal displacement of tower column foot bottom plate 11 is limited, and the horizontal force borne by tower column foot bottom plate 11 can be transmitted to foundation column head 8 through the reinforcing device, so as to avoid the bending of foundation bolt 10 due to horizontal force; Gasket 5 is installed at the corresponding position of tower column foot bottom plate 11 and is located between horizontal tightening bolt 4 and tower column foot bottom plate 11, which functions to transmit the tightening force and protect tower column foot bottom plate 11, gasket 5 cooperates with horizontal tightening bolt 4 to uniformly transmit the tightening force of horizontal tightening bolt 4 to the side surface of tower column foot bottom plate 11, so as to ensure the uniform stress of tower column foot bottom plate 11 and avoid the direct damage of horizontal tightening bolt 4 to tower column foot bottom plate 11; Stand plate 101 is 12-20mm thick, which is determined according to the height of tower and the stress borne by tower column foot bottom plate 11; the spacing of stiffener plate 102 is determined according to the spacing of fastening bolt 2, for example, the specification of fastening bolt 2 is M20, the spacing of screw hole is 80mm, and the spacing of stiffener plate 102 is also 80mm; the installation width of horizontal insert block 103 is slightly larger than the width of horizontal insert block 103, for example, the width of horizontal insert block 103 is 240mm, the thickness is 40mm, the short side width is 100mm, the opening size height is 41mm, and the opening width (one side) is 242mm.

[0022] Further, the four pieces of steel plate hoop 1 form a group, and are connected by fastening bolt 2 to form a rectangular frame for hooping on square foundation column head 8; Or the steel plate hoop 1 is two pieces in a group, each being U-shaped, which is suitable for the foundation column head 8 with smaller width; Specifically, each steel plate hoop 1 is composed of a vertical plate 101, a stiffening plate 102 and a horizontal inlay 103. The vertical plate 101 is L-shaped as a whole, and the two sides are provided with outward 90° folded edges. A plurality of bolt holes are arranged on the folded edges, and the bolt holes on the folded edges are the key structures for connecting the steel plate hoops 1. A rectangular hole is formed in the upper part of the vertical plate 101, and the horizontal inlay 103 is inlaid and welded and fixed at the rectangular hole. The horizontal inlay 103 is provided with horizontal threaded holes 104 on the two sides and vertical threaded holes 105 in the middle. The stiffening plate 102 is arranged on the vertical plate 101 to enhance the strength of the vertical plate 101. Four such steel plate hoops 1 are connected by fastening bolts 2 through the bolt holes on the folded edges to enclose a rectangular frame, which is used to hoop around the square foundation column head 8. By tightening the fastening bolts 2, the four steel plate hoops 1 are tightly fitted around the foundation column head 8 to achieve the preliminary fixation and constraint of the foundation column head 8. Each U-shaped steel plate hoop 1 is also composed of a vertical plate 101, a stiffening plate 102 and a horizontal inlay 103. The vertical plate 101 is L-shaped with outward 90° folded edges on the two sides, and the folded edges are provided with bolt holes. A rectangular hole is formed in the upper part of the vertical plate, and the horizontal inlay 103 is inlaid and welded at the rectangular hole. The horizontal inlay 103 is provided with horizontal threaded holes 104 on the two sides and vertical threaded holes 105 in the middle. The stiffening plate 102 enhances the strength of the vertical plate 101, and the basic structure is similar to that of a single piece in the four-piece type. Two U-shaped steel plate hoops 1 cooperate with each other to adapt to the foundation column head 8 with a smaller width. The two U-shaped steel plate hoops 1 can be connected by the bolt holes on the folded edges using fastening bolts 2 or directly clamped on the foundation column head 8 relying on their own structures, thereby reinforcing the narrower foundation column head 8.

[0023] Further, the number of horizontal jacking bolts 4 and spacers 5 is 8, which are evenly distributed in four directions around the tower column foot bottom plate 11, and two are arranged in each direction. Specifically, by tightening the horizontal jacking bolts 4, the spacers 5 are jacked, and then the tower column foot bottom plate 11 is tightly fixed around, limiting the horizontal displacement of the tower column foot bottom plate 11. When the tower is subjected to horizontal force, it can ensure that the tower column foot bottom plate 11 will not slide horizontally, ensuring the stability of the tower. The horizontal force received by the tower column foot 9 is transmitted to the spacer 5, and then to the tower column foot bottom plate 11, and finally to the foundation column head 8, avoiding the risk of bending of the foundation bolt 10 due to bearing excessive horizontal force, and improving the service life and safety of the foundation bolt 10. According to the actual installation situation and the stress requirement of the tower, the degree of jacking is adjusted by rotating the horizontal jacking bolts 4 to ensure that the fixing effect of the tower column foot bottom plate 11 meets the design requirements; The cushion block 5 is installed between the tower column foot bottom plate 11 and the horizontal jacking bolt 4, avoids the horizontal jacking bolt 4 from directly contacting the tower column foot bottom plate 11, prevents the horizontal jacking bolt 4 from damaging the tower column foot bottom plate 11, and plays a role in protecting the tower column foot bottom plate 11; the cushion block 5 can uniformly transmit the jacking force applied by the horizontal jacking bolt 4 to the side surface of the tower column foot bottom plate 11, so that the tower column foot bottom plate 11 is more uniformly stressed, and local stress concentration is avoided to cause damage to the tower column foot bottom plate 11; since the cushion block 5 can be selected and adjusted according to actual conditions, it can adapt to tower column foot bottom plates 11 of different sizes and shapes, and different installation requirements, thereby improving the versatility and adaptability of the reinforcing device.

[0024] Further, the tower column foot reinforcing device is adapted to a circular foundation column head 8 or a circular tower column foot bottom plate 11, and the curvature of the steel plate hoop 1 matches the profile of the circular foundation column head 8; Specifically, when the circular foundation column head 8 is adapted, the steel plate hoop 1 is designed as an arc-shaped structure, and a single group can be 2-4 pieces. The number is adjusted according to the diameter of the circular foundation column head 8. The inner side curvature of each arc-shaped steel plate hoop 1 completely matches the outer profile curvature of the circular foundation column head 8, forming a close-fitting clamping connection. When installed, multiple arc-shaped steel plate hoops 1 are enclosed on the circular foundation column head 8, and the bolt holes of the two side flanges are penetrated by the fastening bolts 2. After being tightened, the inner side of the arc-shaped steel plate hoop 1 is tightly attached to the outer surface of the circular foundation column head 8 without gaps, ensuring that there is no horizontal relative displacement between the two, and only the vertical adjusting bolt 3 is used to realize overall vertical fine adjustment. The horizontal inlay block 103 still adopts the inlay welding fixing mode and is connected with the vertical plate of the arc-shaped steel plate hoop 1. The vertical plate of the arc-shaped steel plate hoop 1 is provided with a rectangular hole at the upper portion, and the horizontal inlay block 103 is welded and fixed in the hole, thereby forming a rigid connection. Since the steel plate hoop 1 is arc-shaped, the installation positions of the horizontal inlay block 103 need to be uniformly distributed along the circumferential direction of the arc-shaped steel plate hoop 1. For example, 1-2 horizontal inlay blocks correspond to each arc-shaped steel plate hoop 1, so as to ensure that the subsequent horizontal jacking bolt 4 can uniformly apply jacking force to the central circular tower column foot bottom plate 11 from the circumferential direction of the circular foundation column head 8. The connection mode of the horizontal jacking bolt 4 and the horizontal inlay block 103 remains unchanged, and the detachable threaded connection is still formed through the horizontal threaded hole 104 of the horizontal inlay block 103. However, the axial direction of the horizontal threaded hole 104 needs to be adjusted to be along the radial direction of the circular foundation column head, so as to ensure that the bolt jacking can be directed to the center of the circular tower column foot bottom plate 11. The cushion block 5 is designed as an arc-shaped contact surface according to the profile of the circular tower column foot bottom plate 11, the inner side curvature matches the outer profile, the non-close-fitting surface is rigidly connected with the end of the horizontal jacking bolt 4, the end shape can be arc-shaped or conical, and is adapted to the stress surface of the cushion block 5, thereby forming a detachable abutting relationship. The arc-shaped steel plate hoop 1 is fixed on the circular foundation column head 8 by the fastening bolt 2, the horizontal insert block 103 is uniformly welded along the circumference of the steel plate hoop 1, the threaded hole is arranged in the radial direction, the horizontal jacking bolt 4 penetrates into the threaded hole, advances and retreats in the radial direction, the arc-shaped pad 5 is attached to the circular bottom plate, and the jacking force is accepted, and finally the coaxial rigid connection system of the circular foundation column head 8, the arc-shaped steel plate hoop 1, the horizontal insert block 103, the horizontal jacking bolt 4, the arc-shaped pad 5 and the circular tower column foot bottom plate 11 is formed, which ensures that each structure is symmetrically distributed around the central axis of the circular foundation column head 8 / tower column foot bottom plate 11.

[0025] Further, the top of the horizontal jacking bolt 4 is connected with a pressure sensor for real-time monitoring of the horizontal force borne by the tower column foot bottom plate 11; Specifically, the pressure sensor is used for real-time monitoring of the horizontal force borne by the tower column foot bottom plate 11, which can sense the change of pressure borne by the top of the horizontal jacking bolt 4, and the change of pressure is closely related to the horizontal force borne by the tower column foot bottom plate 11; When the tower is subjected to a horizontal force, the horizontal force is transmitted to the pad 5 through the tower column foot bottom plate 11, then transmitted to the horizontal jacking bolt 4 through the pad 5, and finally acts on the pressure sensor, that is, the horizontal force borne by the tower column foot bottom plate 11 is transmitted to the pressure sensor in the form of pressure; The pressure sensor usually has a sensitive element inside, when subjected to pressure, the physical properties of the sensitive element will change, and this physical change will be converted into an electrical signal, for example, the resistance type pressure sensor changes the resistance value by pressure, and then changes the current or voltage in the circuit; The converted electrical signal is transmitted to the data acquisition device, which amplifies, filters and processes the electrical signal, and then converts the processed signal into readable pressure values; The processed pressure values are displayed in real time on the monitoring terminal, and the operating personnel can understand the size of the horizontal force borne by the tower column foot bottom plate 11 in real time through the monitoring terminal, and through the analysis of these data, the abnormal stress condition of the tower column foot 9 can be found in time, such as sudden increase of horizontal force, which may indicate that the tower is subjected to abnormal external force or the foundation is unstable, so that appropriate measures are taken to ensure the safety of the tower.

[0026] Further, the threaded position of the vertical adjusting bolt 3 is marked with a scale, and the displacement change of the thread after tightening is observed to determine whether the foundation column head 8 has settled; Specifically, one of the main functions of the vertical adjusting bolt 3 is to adjust the height of the steel plate hoop 1. During the installation of the tower column foot reinforcing device, there may be certain errors in the vertical installation height of the base column head 8 and the tower column foot bottom plate 11 on the base column head 8. By rotating the vertical adjusting bolt 3, the position of the vertical adjusting bolt 3 in the vertical threaded hole 104 of the horizontal insert block 103 can be changed, thereby adjusting the overall height of the steel plate hoop 1 in the vertical direction, aligning the horizontal insert block 103 with the bottom surface of the tower column foot bottom plate 11, and ensuring that the subsequent horizontal clamping bolt 4 can effectively clamp the tower column foot bottom plate 11. The threaded position of the vertical adjusting bolt 3 is marked with a scale. After the initial installation of the device is completed, the threaded position of the vertical adjusting bolt 3 after tightening is recorded. As time goes by, if the base column head 8 settles, the base column head 8 will move downward relative to the steel plate hoop 1, which will cause the relative position of the vertical adjusting bolt 3 in the vertical threaded hole 105 of the horizontal insert block 103 to change, i.e., the tightening state of the thread changes. By observing the threaded position of the vertical adjusting bolt 3 again and comparing it with the initial recorded scale, it can be determined whether the base column head 8 has settled and the approximate degree of settlement. For example, if it is found that the thread of the vertical adjusting bolt 3 has rotated outward relative to the initial position, it indicates that the base column head 8 may have settled, causing the steel plate hoop 1 to rise relatively, thereby directly reflecting the settlement of the base column head 8 through the change in the threaded position. The horizontal insert block 103 has a vertical threaded hole 105, which provides a mounting position for the vertical adjusting bolt 3, allowing the vertical adjusting bolt 3 to be installed on the steel plate hoop 1 and adjusted in height by rotation. It is a key connecting component for realizing the vertical adjustment function, connecting the vertical adjusting bolt 3 and the steel plate hoop 1 together to ensure that the vertical adjusting bolt 3 can function stably. The steel plate hoop 1 is connected by fastening bolts 2 to form a ring structure, which is wrapped around the base column head 8. It provides a mounting basis for the vertical adjusting bolt 3 and the horizontal insert block 103, plays a fixing and supporting role, and ensures that the entire reinforcing device can be stably installed on the base column head 8. At the same time, it cooperates with the vertical adjusting bolt 3 to realize the adjustment of the height of the tower column foot bottom plate 11 and the monitoring function of the settlement of the base column head 8. The cushion block 5 is located between the bottom of the vertical adjusting bolt 3 and the base column head 8, and plays a buffering and supporting role. On the one hand, it can protect the surface of the base column head 8 from being directly pressed and damaged by the vertical adjusting bolt 3, and on the other hand, it can ensure that the vertical adjusting bolt 3 is uniformly stressed during adjustment, making the adjustment process more stable and accurate.

[0027] Further, the cushion block 5 is a metal rigid cushion block, which is shaped to fit the edge of the tower column foot bottom plate 11, ensuring that the clamping force of the horizontal clamping bolt 4 is uniformly transmitted to the tower column foot bottom plate 11. Specifically, the cushion block 5 is made of metal rigid material, and the shape of the contact surface is completely matched with the edge contour of the tower column foot bottom plate 11. For example, when the tower column foot bottom plate 11 is square, the corresponding side of the cushion block 5 is flat. When the tower column foot bottom plate 11 is circular, the corresponding side of the cushion block 5 is arc-shaped. The two are in surface contact to form a rigid connection. During installation, the cushion block 5 is directly placed in the preset position of the edge of the tower column foot bottom plate 11 without additional fixing parts, so as to ensure that there is no gap between the cushion block 5 and the tower column foot bottom plate 11 and avoid local suspension during the transmission of the jacking force. The horizontal jacking bolt 4 passes through the horizontal threaded hole 104 of the horizontal insert block 103, and the end thereof is in rigid abutment with the non-matching surface of the cushion block 5. The bolt end can be shaped to match the cushion block 5, and the corresponding position of the cushion block 5 is provided with a matching stress surface, so as to ensure that the jacking force can be directly transmitted to the cushion block along the axial direction during the screwing of the bolt, without the risk of deviation or slipping. The horizontal insert block 103 is embedded and welded on the steel plate hoop vertical plate 1, and through holes are formed in the two sides thereof. The horizontal jacking bolt 4 passes through the threaded hole in a threaded and screwed manner to form a detachable threaded connection. The horizontal insert block 103 is clamped on the foundation column head 8 with the steel plate hoop 1, and the position is fixed. The horizontal jacking bolt 4 can be rotated clockwise / counterclockwise to advance or retreat along the axial direction of the threaded hole, thereby achieving the jacking or loosening operation of the cushion block 5. The steel plate hoop 1 is clamped on the foundation column head by the fastening bolt 2, and the horizontal insert block 103 is rigidly connected with the steel plate hoop 1. Therefore, the horizontal position of the horizontal jacking bolt 4 and the cushion block 5 is positioned by the fixed relationship between the steel plate hoop 1 and the foundation column head 8, so as to ensure that the jacking direction of the horizontal jacking bolt 4 is always perpendicular to the edge of the tower column foot bottom plate 11, thereby avoiding uneven stress caused by deviation of the jacking force direction.

[0028] Further, the cushion block 5 is shaped as a U-shaped, and the opening width is slightly larger than the thickness of the tower column foot bottom plate 11. Specifically, the opening of the U-shaped cushion block is directed towards the tower column foot bottom plate 11, and the opening width is slightly larger than the thickness of the tower column foot bottom plate 11, with a difference of usually 1-3 mm, which is suitable for the thickness error of the tower column foot bottom plate 11 to form a clamping groove type matching connection. During installation, the opening of the U-shaped cushion block is directly clamped on the edge of the tower column foot bottom plate 11. The upper and lower clamping surfaces on the inner side of the cushion block 5 are tightly matched with the top surface and the bottom surface of the tower column foot bottom plate 11, and the side clamping surface is matched with the outer surface of the tower column foot bottom plate 11, thereby achieving three-sided wrapping contact with the edge of the tower column foot bottom plate 11 without obvious gap. The stable clamping state is maintained only by the jacking force of the horizontal jacking bolt 4, without the need for additional fixing parts. The end of the horizontal clamping bolt 4 is in rigid abutment with the outer side plane of the U-shaped pad 5. If the circular tower foot column foot plate 11 is adapted, the outer side plane of the U-shaped pad 5 can be designed as an arc shape adapted to the circumference of the circular tower foot column foot plate 11, so as to ensure that the end of the horizontal clamping bolt 4 can be vertically abutted to the outer side of the pad 5; the horizontal clamping bolt 4 is arranged to pass through the horizontal threaded hole 104 of the horizontal insert block 103 along the radial direction of the circular foundation column head 8, and then directly clamps the outer side of the U-shaped pad 5 to form a detachable abutment relationship, and the clamping force can be adjusted by rotating the horizontal clamping bolt 4; The U-shaped opening is clamped on the edge of the tower foot column foot plate 11, and the "three-sided wrapping" structure limits the displacement of the pad 5 in the axial upward and downward direction and the radial horizontal direction of the tower foot column foot plate 11, avoiding the problem that the traditional flat pad is easy to slide due to the offset of the clamping force, especially in the scene of adapting to the circular tower foot column foot plate 11, ensuring that the pad 5 is always in contact with the edge of the tower foot column foot plate 11, and the force transmission position is stable; The U-shaped opening width is slightly larger than the thickness of the tower foot column foot plate 11, which can avoid installation difficulty caused by over-tightening, and can also convert the "single-point clamping force" of the horizontal clamping bolt 4 into "three-sided uniform force" through the upper and lower and side clamping surfaces, and uniformly transmit it to the edge of the tower foot column foot plate 11, avoiding local stress concentration of the tower foot column foot plate 11, and at the same time enhancing the constraint effect on the horizontal displacement of the tower foot column foot plate 11, which can limit the radial and slight torsional displacement at the same time; The small excess of 1-3mm of the U-shaped opening width can be compatible with the thickness error of different tower foot plates, such as setting a thickness of 10mm, and the actual thickness is 9.5-10.5mm, without the need to customize special pads 5 for different thickness tower foot column foot plates 11, improving the universality of the device, especially for the scene of the thickness of the tower foot plate of the built tower being different.

[0029] Further, the end of the horizontal clamping bolt 4 is conical, and the U-shaped groove part of the pad is provided with a conical hole; Specifically, the end of the horizontal clamping bolt 4 is conical, and the outer side part of the U-shaped groove of the U-shaped pad 5 is provided with a conical non-through hole matched with the end of the horizontal clamping bolt 4, the taper and depth of the hole are consistent with the end of the horizontal clamping bolt 4, so as to ensure complete fitting, and the two form a conical surface fitting type rigid connection; during installation, the horizontal clamping bolt 4 is screwed into the horizontal threaded hole 104 of the horizontal insert block 103, so that the conical end is accurately embedded in the conical non-through hole of the U-shaped pad 5 without obvious gap, and the tight fitting is achieved through the screwing force, avoiding the relative sliding between the end of the horizontal clamping bolt 4 and the pad 5; The horizontal insert 103 is welded to the arc-shaped steel plate hoop stand 1, the horizontal threaded hole 104 of the horizontal insert 103 provides a guide for the horizontal jacking bolt 4 along the radial direction of the circular foundation column head 8, and ensures that the horizontal jacking bolt 4 is screwed along the radial direction and is embedded with the conical surface of the U-shaped pad 5; the U-shaped pad 5 is indirectly in a force closed loop with the arc-shaped steel plate hoop 1, the horizontal insert 103, the horizontal jacking bolt 4, the pad 5 and the tower column foot bottom plate 11 through the clamping with the tower column foot bottom plate 11 and the embedding with the conical surface of the horizontal jacking bolt 4, and each structure is coaxially distributed around the circular foundation column head 8 / tower column foot bottom plate 11; The conical structure concentrates the jacking force of the horizontal jacking bolt 4 on the conical contact part, compared with a flat end, the unit area stress is more uniform, the axial jacking force of the horizontal jacking bolt 4 can be transmitted to the U-shaped pad 5 without loss, local deformation of the pad caused by too small contact area is avoided, and the force transmission efficiency is improved; The inner wall of the conical non-through hole is an arc-shaped conical surface, the concentrated force transmitted by the end of the horizontal jacking bolt 4 can be uniformly dispersed along the conical surface to the whole U-shaped pad 5, and then is transmitted to the edge of the tower column foot bottom plate 11 through the contact surface of the pad 5 and the tower column foot bottom plate 11, further avoiding local stress concentration and protecting the galvanized layer of the tower column foot bottom plate 11 from being damaged; The non-through hole design can avoid the end of the horizontal jacking bolt 4 penetrating the pad 5 to contact the tower column foot bottom plate 11, and prevent the horizontal jacking bolt 4 from directly scratching the tower column foot bottom plate 11; and the size of the conical surface can be uniformly designed according to the specification of the horizontal jacking bolt 4, without adjusting the pad structure according to the thickness and shape of the tower column foot bottom plate 11, so that the standardization degree and universality of the device are improved. The preferred embodiments of the present application do not limit the present application, and any modifications, equivalent replacements and improvements made within the concept and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A device for reinforcing the base of a steel tower, characterized in that, include: Steel plate hoops, fastening bolts, vertical adjusting bolts, horizontal tightening bolts, and spacers; The steel plate hoop consists of a vertical plate, stiffening plates, and horizontal inserts. The vertical plate is L-shaped with outward 90° folded edges on both sides. Multiple bolt holes are provided on the folded edges, and multiple horizontal stiffening plates are provided. A rectangular hole is opened at the top of the vertical plate, and the horizontal insert is embedded and welded to the rectangular hole. The horizontal insert has through-holes on both sides and through-holes in the middle. The vertical adjusting bolts are installed through the vertical threaded holes of the horizontal inserts to adjust the height of the steel plate hoop so that the horizontal inserts are aligned with the bottom surface of the base plate of the tower column. The horizontal tightening bolts are inserted through the horizontal threaded holes of the horizontal inserts, and the pads are installed at the corresponding positions on the base plate of the tower column. Multiple horizontal tightening bolts are used to press multiple pads against the side of the base plate of the tower column, thereby limiting the horizontal displacement of the base plate of the tower column.

2. The tower column base reinforcement device according to claim 1, characterized in that, Four steel plates are arranged as a set, and are connected by fastening bolts to form a rectangular frame, which is used to clamp onto the square foundation column head; Alternatively, the steel plate hoop can be in sets of two, each U-shaped, to fit the narrower foundation column heads.

3. The tower column base reinforcement device according to claim 1, characterized in that, There are 8 horizontal tightening bolts and shims, evenly distributed in four directions around the base plate of the tower column, with 2 in each direction.

4. The tower column base reinforcement device according to claim 1, characterized in that, The tower base reinforcement device is compatible with circular foundation column heads or circular tower base plates, and the curvature of the steel plate hoop matches the outline of the circular foundation column head.

5. The tower column base reinforcement device according to claim 1, characterized in that, A pressure sensor is connected to the top of the horizontal tightening bolt to monitor the horizontal force on the base plate of the tower column in real time.

6. The tower column base reinforcement device according to claim 1, characterized in that, The vertical adjusting bolts have graduated markings on their threads. By observing the displacement of the threads after tightening, it can be determined whether the foundation column head has settled.

7. The tower column base reinforcement device according to claim 1, characterized in that, The pad is a rigid metal pad, shaped to fit the edge of the base plate of the tower column, ensuring that the tightening force of the horizontal tightening bolt is evenly transmitted to the base plate of the tower column.

8. The tower column base reinforcement device according to claim 1 or 7, characterized in that, The pad is U-shaped, with an opening width slightly larger than the thickness of the base plate of the tower column.

9. The tower column base reinforcement device according to claim 1, characterized in that, The end of the horizontal tightening bolt is conical, and the U-shaped groove of the pad has a conical hole.

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