Positioning and adjusting device for head section of large-section steel tower

Abstract

The utility model relates to the technical field of bridge construction, in particular to a large-section steel tower head section positioning and adjusting device. Comprising a plurality of first horizontal position adjusting structures, a plurality of second horizontal position adjusting structures and a plurality of vertical lowering structures, and the first horizontal position adjusting structures are used for adjusting the horizontal position of the steel tower head section when the steel tower head section is hoisted and lowered, so that anchor rod holes in the steel tower head section are aligned with anchor rods on a tower base one by one; the second horizontal position adjusting structure is used for adjusting the horizontal position of the head section of the steel tower in the process that the head section of the steel tower is separated from hoisting and completely lowered to the tower base, so that the head section of the steel tower is accurately lowered to the tower base; the vertical lowering structure bears the steel tower head section when the steel tower head section is separated from hoisting and is used for gradually lowering the steel tower head section to the tower base. The device is simple in structure and convenient to adjust and use, the steel tower head section is stably lowered, the hoisting risk is extremely low, the lowering precision is extremely high, and the mounting efficiency of the steel tower head section is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a first segment positioning and adjusting device for a large-section steel tower. Background Art

[0002] With the changes in bridge engineering requirements and the improvement of design level, steel structure bridge towers are increasingly used in the construction of extra-large span bridges. Compared with traditional concrete bridge towers, they have the advantages of light weight, high strength, efficient installation, and conducive to standardized design. The installation of the first section of the steel tower affects the construction accuracy of the entire bridge. Generally, for the installation of such bridge towers, anchor rods are embedded in the tower base, and anchor rod holes are reserved on the first section of the steel tower. When the first section of the steel tower is hoisted and lowered, the anchor rods are passed through the anchor rod holes to ensure the accurate position of the steel tower. However, for large-section steel towers, the steel tower area and mass are large, the number of anchor rods is large, and the anchor rod holes reserved for the steel tower are small. The steel tower shakes greatly during hoisting, and the posture adjustment of the steel tower is difficult during the falling process. It is difficult to pass the anchor rods through the anchor rod holes on the steel tower by artificial measures such as pulling the mooring rope, and the steel tower is difficult to fall to the designed position.

[0003] In order to solve the above technical problems, a Chinese invention patent with patent number "CN117661467A" and titled "Construction method for precise positioning and installation of the first segment of a steel shell concrete composite tower" discloses a construction method, which divides the foundation into three layers for layered construction. After completing the construction of the first foundation and before the construction of the second foundation, various embedded parts are installed, and then the construction of the second foundation is completed; positioning piers are set at the preset position of the second foundation, and adjustment piers are set next to the positioning piers, and temporary support pads are set on the positioning piers; steel brackets corresponding to the positioning piers are set at the bottom of the first section of the steel tower, and then the first section of the steel tower is hoisted by lifting equipment, and guide chains connected to the embedded parts are installed on both sides of the first section of the steel tower to perform rough positioning adjustments, and the hoisted first section of the steel tower is hoisted onto the temporary support pads, the hooks are kept not loose, and under the steel brackets Install the anchor bolts; install the steel rods passing through the steel support and the first section of the steel tower from bottom to top, and install the gaskets and nuts for temporarily fixing the steel rods at the top plate of the anchor structure of the first section of the steel tower. The steel rods at the adjustment pier are reserved for later insertion, and the anchors are installed at the bottom of the installed steel rods; remove the temporary support pad under the first section of the steel tower, and set a three-way jack on the adjustment pier, lower the first section of the steel tower to the top of the positioning pier, and use the three-way jack to adjust its installation accuracy so that the anchor bolts under the steel support are inserted into the reserved holes on the top of the positioning pier until the requirements are met; after the installation of the first section of the steel tower is completed, remove the adjustment pier, and pour epoxy mortar on the top of the positioning pier, and then install the remaining steel rods; construct the third layer of the foundation, and after the concrete strength meets the design requirements, symmetrically tension the steel rods, and anchor them after tensioning is completed; construct the tower base, and pour the concrete of the first section of the steel tower simultaneously when pouring the concrete of the tower base.

[0004] In fact, the construction method introduced in the above patent is to divide the foundation into multiple steps for construction. The first section of the steel tower is positioned first and then the steel rod is constructed. This construction method avoids the problem of high positioning accuracy requirements for the one-to-one correspondence between the first section of the steel tower and the anchor rod, and reduces the difficulty of construction. However, this method also has some problems. Since the foundation needs to be constructed in multiple steps, the construction procedures are extended, the construction stage is increased, the hoisting equipment is occupied for a long time, the difficulty of hoisting is increased, and the construction safety cannot be guaranteed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the above-mentioned background technology and provide a first segment positioning and adjustment device for a large-section steel tower and a construction method.

[0006] The technical solution of the utility model is: a first segment positioning and adjusting device for a large-section steel tower, comprising:

[0007] A plurality of first horizontal adjustment structures, wherein the plurality of first horizontal adjustment structures are installed on the tower base and are located outside the four sides of the lowering point of the first section of the steel tower, and the first horizontal adjustment structures are used to adjust the horizontal position of the first section of the steel tower when the first section of the steel tower is hoisted and lowered so that the anchor holes on the first section of the steel tower are aligned one by one with the anchor holes on the tower base;

[0008] A plurality of second horizontal adjustment structures, wherein the plurality of second horizontal adjustment structures are installed on the tower base and are located outside the surroundings of the steel tower lowering point, and the second horizontal adjustment structures are used to adjust the horizontal position of the first section of the steel tower during the process from the first section of the steel tower being separated from the hoisting to being completely lowered to the tower base, so that the first section of the steel tower can be accurately lowered to the tower base;

[0009] A plurality of vertical lowering structures are installed on the tower base and are located around the lowering point of the steel tower. When the first section of the steel tower is detached from the hoisting, the vertical lowering structures carry the first section of the steel tower and are used to gradually lower the first section of the steel tower to the tower base.

[0010] According to a large-section steel tower first segment positioning and adjustment device provided in the present application, the first horizontal adjustment structure includes:

[0011] Two columns, the columns are vertically anchored on the tower base;

[0012] A first tie-in, wherein the first tie-in is arranged horizontally and transversely, and the first tie-in is fixed between two upright posts;

[0013] A reaction seat, wherein the reaction seat is fixed on the first parallel joint;

[0014] The first horizontal jack has a shell fixed on the reaction seat, and a telescopic end thereof can be telescoped in the horizontal direction and abutted against the outer side of the first segment of the steel tower.

[0015] According to a large-section steel tower first section positioning and adjusting device provided in the present application, the tower base is provided with at least one group of first horizontal positioning structures on each group of opposite sides of the steel tower first section lowering point, and each group includes at least two first horizontal positioning structures symmetrically arranged with the center line of the steel tower first section as the center.

[0016] According to a large-section steel tower first segment positioning and adjustment device provided in the present application, the second horizontal adjustment structure includes:

[0017] A second flat link, wherein the second flat link is arranged between two pillars in a horizontal direction and is located below the first flat link;

[0018] The second horizontal jack has a shell fixed on the second horizontal joint, and the telescopic end abuts against the outer side of the first segment of the steel tower when the first segment of the steel tower is separated from the hoisting and completely lowered to the tower base.

[0019] According to a large-section steel tower first segment positioning and adjusting device provided in the present application, the telescopic end of the first horizontal jack is provided with a roller that is rollingly connected to the outer side of the steel tower first segment.

[0020] According to the present application, a large-section steel tower first segment positioning and adjusting device is provided, which also includes:

[0021] A horizontal corbel is installed on the side of the first horizontal joint facing the first section of the steel tower, and a limiting groove is provided on the horizontal corbel for limiting the movement of the first horizontal jack in the non-telescopic direction.

[0022] According to a large-section steel tower first segment positioning and adjusting device provided in the present application, the vertical lowering structure includes:

[0023] Supporting bracket, the supporting bracket is a supporting structure arranged outside the first section of the steel tower;

[0024] A first support pad, which is a support structure arranged on the tower base and located below a corresponding support corbel;

[0025] A vertical jack, the shell of which is placed on the first supporting pad, and the telescopic end is supported on the supporting bracket when the first section of the steel tower is separated from the hoisting.

[0026] According to a large-section steel tower first segment positioning and adjusting device provided in the present application, the vertical lowering structure further includes:

[0027] A second support pad, wherein the second support pad is a support structure formed by a plurality of detachable pads and arranged on the tower base;

[0028] A slide plate is installed at the upper end of the second supporting pad, and the upper end surface of the slide plate is supported on the lower end surface of the first section of the steel tower when the first section of the steel tower cooperates with the vertical jack to lower it.

[0029] According to a positioning and adjusting device for the first section of a large-section steel tower provided in the present application, at least two groups of vertical lowering structures are arranged on the tower base, each group includes at least two vertical lowering structures symmetrically arranged around the center line of the first section of the steel tower, and each group of vertical lowering structures includes a group of first support pads and a second support pad adjacent to the first support pads.

[0030] According to a large-section steel tower first segment positioning and adjusting device provided in the present application, the first supporting pad is a supporting structure formed by a plurality of detachable pads and arranged on a tower base.

[0031] The present application also provides a method for constructing a first section of a large-section steel tower, wherein the method adopts the above-mentioned first section positioning and adjusting device of a large-section steel tower for construction, and comprises:

[0032] S1. Arrange multiple groups of first horizontal adjustment structures, multiple groups of second horizontal adjustment structures and multiple groups of vertical lowering structures on the tower base;

[0033] S2. Use the hoisting equipment to lift the first section of the steel tower to the top of the anchor rod, so that the bottom surface of the first section of the steel tower is close to the top of the anchor rod;

[0034] S3, horizontally adjusting the first section of the steel tower through the first horizontal adjustment structure so that the anchor holes on the first section of the steel tower are aligned one by one with the anchors below;

[0035] S4. After the alignment work is completed, the hoisting equipment slowly lowers the first section of the steel tower to the vertical lowering structure;

[0036] S5. The vertical lowering structure lowers the first section of the steel tower. During this process, the second horizontal adjustment structure is used to horizontally adjust the first section of the steel tower until the first section of the steel tower is accurately lowered onto the tower base.

[0037] According to a method for constructing the first segment of a large-section steel tower provided in the present application, in step S1, the method for arranging multiple groups of first horizontal positioning structures on the tower base includes: arranging at least one group of first horizontal positioning structures on each group of opposite surfaces of the tower base located at the lowering point of the first segment of the steel tower, and each group includes at least two first horizontal positioning structures that are symmetrically arranged around the center line of the first segment of the steel tower.

[0038] According to a method for constructing the first section of a large-section steel tower provided in the present application, in step S1, the method for arranging multiple groups of second horizontal adjustment structures on the tower base includes: arranging the second horizontal adjustment structure directly below each group of first horizontal adjustment structures.

[0039] According to a construction method for the first section of a large-section steel tower provided in the present application, in step S3, the method for horizontally adjusting the first section of the steel tower by means of a first horizontal adjustment structure includes: using the first horizontal adjustment structure located opposite to the deviation direction of the first section of the steel tower to horizontally push the first section of the steel tower until all the anchor holes of the first section of the steel tower are aligned with the anchors, and driving all the second horizontal adjustment structures so that the pushing ends are pressed against the outer side of the first section of the steel tower to form a guide structure for limiting the non-vertical movement of the first section of the steel tower.

[0040] According to a construction method for the first section of a large-section steel tower provided by the present application, in step S1, the method of arranging multiple groups of vertical lowering structures on the tower base includes: arranging at least two groups of vertical lowering structures on the tower base, each group includes at least two vertical lowering structures symmetrically arranged with the center line of the first section of the steel tower as the center, each group of vertical lowering structures includes a group of first support pads and second support pads adjacent to the first support pads; the first support pads and the second support pads are support structures formed by multiple pads stacked on the tower base, a vertical jack is installed on the first support pad, and a slide is installed on the second support pad; a support bracket is installed on the outer side of the first section of the steel tower at a position corresponding to the first support pad (13).

[0041] According to a construction method for the first section of a large-section steel tower provided in the present application, in step S5, the method of vertically lowering the structure to lower the first section of the steel tower includes: hoisting the first section of the steel tower and lowering it to the slide plate of the second supporting pad block, lifting the supporting bracket with a vertical jack to lift the first section of the steel tower, pulling out several pads in the second supporting pad block, and lowering the first section of the steel tower to the slide plate with a vertical jack, and performing the above steps in sequence until the first section of the steel tower slowly descends to the designed elevation.

[0042] According to a construction method for the first section of a large-section steel tower provided in the present application, in step S5, the method of horizontally adjusting the first section of the steel tower using the second horizontal adjustment structure includes: after the first section of the steel tower completely falls on the slide plate of the second supporting pad, the first section of the steel tower is horizontally pushed using the second horizontal adjustment structure located opposite to the deviation direction of the first section of the steel tower, so that the first section of the steel tower slides on the slide plate until the first section of the steel tower completes the horizontal adjustment.

[0043] The advantages of the present application are as follows: 1. The present application can easily complete the precise lowering of the first section of the steel tower by constructing a simple horizontal adjustment structure and a vertical lowering structure on the tower base, and cooperate with the lifting equipment. The tower base and the anchor rod are constructed at one time, and the first section of the steel tower can be accurately aligned with the anchor rod one by one. The first section of the steel tower can be slowly lowered in a fully controlled manner. The overall operation is very simple, the efficiency of lowering and installing the first section of the steel tower is extremely high, the safety of the construction is also guaranteed, and the construction difficulty of the first section of the steel tower is reduced;

[0044] 2. The first horizontal adjustment structure of the present application is very simple. The first horizontal jack is installed through the constructed columns, the first horizontal joint and the reaction seat. The first horizontal jack applies a horizontal pushing force to the first segment of the steel tower. When the first segment of the steel tower is offset, it can be well adjusted horizontally through the first horizontal jack in the opposite direction. The overall structure is simple, easy to use, and the efficiency of horizontal adjustment is extremely high.

[0045] 3. The present application sets multiple sets of first horizontal adjustment structures on the tower base to ensure that the first segment of the steel tower can be adjusted horizontally in various directions during the hoisting and lowering process. The adjustment method is simple and the adjustment process is extremely efficient.

[0046] 4. The present application installs a second horizontal adjustment structure on the column, and the second horizontal adjustment structure is located below the first horizontal adjustment structure. For the lowering process of the first section of the steel tower after it is separated from the lifting equipment, the overall layout structure is extremely delicate, occupies a small space, and is convenient for layout and adjustment;

[0047] 5. The present application sets a roller at the telescopic end of the first horizontal jack, and the roller forms rolling friction with the side of the first section of the steel tower. Multiple first horizontal jacks can form a guide structure to limit the non-vertical movement of the first section of the steel tower, which is convenient for hoisting and lowering the first section of the steel tower. The overall structure is simple and easy to operate.

[0048] 6. The present application installs horizontal brackets on the first horizontal link and the column. The horizontal brackets construct the guide structure of the first horizontal jack, and limit the lifting process of the first horizontal jack to guide it, ensuring that the roller can always be pushed in the direction facing the first segment of the steel tower;

[0049] 7. The vertical lowering structure of the present application is very simple. Through the combined structure of the vertical jack and the supporting bracket, the system conversion from the hoisting equipment to the vertical jack can be easily completed. Moreover, the entire vertical jack and the supporting bracket are all located outside the first section of the steel tower, with spacious space and simple operation.

[0050] 8. The vertical lowering structure of the present application also includes a second support pad and a slide plate. The second support pad can be adjusted in height according to the lifting and lowering needs of the vertical jack, and cooperates with the vertical jack to conveniently complete the gradual and slow lowering of the first section of the entire steel tower. The slide plate cooperates with the second horizontal adjustment structure to facilitate the horizontal adjustment of the first section of the steel tower. The overall structure is very simple and very convenient to adjust.

[0051] 9. The vertical lowering structure of the present application is symmetrically arranged, which can ensure the stability of the first section of the entire steel tower during the lowering process. At the same time, the vertical jack and the second supporting pad are adjacent to each other, which is convenient for use;

[0052] 10. The first support pad of the present application is a structure capable of changing its height, and can be adjusted in height according to the actual lowering requirements, so as to facilitate the lowering of the first section of the steel tower, and the overall lowering process is simple and efficient;

[0053] 11. The present application also provides a corresponding construction method for the first section of a steel tower. The construction method of the present application does not require the tower base and anchor rods to be constructed in steps. It only requires the construction of a simple horizontal adjustment structure and a vertical lowering structure on the tower base to quickly and conveniently lower the first section of the steel tower accurately and slowly. The overall lowering process is very simple, and the hoisting equipment takes very little time.

[0054] 12. The present application constructs multiple sets of first horizontal adjustment structures on the tower base to ensure that the first segment of the steel tower can be adjusted horizontally in various directions during the hoisting and lowering process. The adjustment method is simple and the adjustment process is extremely efficient.

[0055] 13. The present application constructs a second horizontal adjustment structure directly below the first horizontal adjustment structure. The first horizontal adjustment structure and the second horizontal adjustment structure correspond to the horizontal adjustment of the lowering process of the first segment of the different steel towers. This arrangement occupies a small space, has a simple structure, and is convenient for horizontal adjustment.

[0056] 14. In the process of hoisting and lowering the first section of the steel tower, the first section of the steel tower is horizontally adjusted by the first horizontal adjustment structure. After the adjustment is completed, a guide structure is formed to limit the non-vertical movement of the first section of the steel tower. The overall lowering is very simple and efficient, and the lowering accuracy is extremely high.

[0057] 15. The method of constructing the vertical lowering structure of the present application is very simple. The vertical jack constructed by the vertical lowering structure is convenient for slowly lowering the first section of the steel tower. The second supporting pads arranged can realize the gradual lowering of the first section of the steel tower by gradually withdrawing the pads. The configured slide plate is also convenient for horizontal adjustment of the first section of the steel tower.

[0058] 16. The vertical jack of the present application cooperates with the second supporting pad to gradually and slowly lower the first section of the steel tower. The overall lowering process is fully controllable, and the gradual lowering can also be adjusted in conjunction with the horizontal adjustment to ensure that the first section of the steel tower can always be in a precise docking position. The lowering process of the first section of the steel tower is extremely safe and accurate.

[0059] 17. During the lowering process of the vertical jack, the present application can cooperate with the second horizontal adjustment structure to horizontally adjust the first section of the steel tower. The first section of the steel tower slides and moves on the slide plate, making the horizontal displacement of the first section of the steel tower very easy and the overall adjustment very simple.

[0060] The present application is very simple for lowering the first section of a large-section steel tower. The constructed device has a simple structure and is easy to adjust and use. The first section of the steel tower is lowered smoothly, the risk of lifting is extremely low, the lowering accuracy is extremely high, and the installation efficiency of the first section of the steel tower is high, which has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 : A top view of the first section of the steel tower and the positioning and adjusting device of the present application;

[0062] Figure 2 : A schematic diagram of the first horizontal adjustment structure of the present application adjusting the position of the first section of the steel tower;

[0063] Figure 3 : Schematic diagram of the first section of the lowering steel tower of the vertical lowering structure of the present application;

[0064] Figure 4 : Front view of the first horizontal adjustment structure and the second horizontal adjustment structure of the present application;

[0065] Figure 5 : Side view of the first horizontal adjustment structure and the second horizontal adjustment structure of the present application;

[0066] Among them: 1—tower base; 2—first section of steel tower; 3—anchor rod; 4—column; 5—first parallel joint; 6—reaction seat; 7—first horizontal jack; 8—second parallel joint; 9—second horizontal jack; 10—roller; 11—horizontal corbel; 12—support corbel; 13—first support pad; 14—vertical jack; 15—second support pad; 16—slide plate. DETAILED DESCRIPTION

[0067] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0068] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] The present application relates to a positioning and adjusting device for the first section of a large-section steel tower. The adjusting device of the present application is used to adjust the position of the first section of the steel tower to ensure that the first section of the steel tower can be accurately lowered onto the tower base. The tower base and anchor rods of the present application are completed in one construction without the need for step-by-step operation. That is, before the first section of the steel tower is lowered, the tower base and the anchor rods on the tower base have been constructed. The first section of the steel tower is first lifted to the top of the tower base by a lifting device, and then the horizontal position is adjusted above the tower base based on the adjusting device, so that the anchor rod holes on the first section of the steel tower can be aligned one by one with the anchor rods below. After alignment, the lifting equipment lowers the first section of the steel tower to a set height and transfers the first section of the steel tower to the positioning device. At this time, the lifting equipment can be withdrawn without occupying the lifting equipment for a long time. The positioning device then slowly adjusts and lowers the first section of the steel tower until the first section of the steel tower is lowered to the designed elevation. During the lowering process of the first section of the steel tower, the present application only needs to construct a very simple positioning device to achieve accurate, safe and efficient lowering of the first section of the steel tower. The overall difficulty of lowering is greatly reduced, the construction efficiency is greatly improved, and the time occupied by the lifting equipment is greatly reduced.

[0072] Specifically, Figures 1 to 5 As shown, the large-section steel tower first segment positioning and adjusting device of the present application comprises a plurality of first horizontal positioning and adjusting structures, a plurality of second horizontal positioning and adjusting structures and a plurality of vertical lowering structures. The plurality of first horizontal positioning and adjusting structures are installed on the tower base 1 and are located on the outer sides of the lowering point of the steel tower first segment 2. The first horizontal positioning and adjusting structures are used to adjust the horizontal position of the steel tower first segment 2 when the steel tower first segment 2 is hoisted and lowered so that the anchor holes on the steel tower first segment 2 are aligned one by one with the anchor holes 3 on the tower base 1. The plurality of second horizontal positioning and adjusting structures are used to adjust the horizontal position of the steel tower first segment 2 when the steel tower first segment 2 is hoisted and lowered. The structure is installed on the tower base 1 and is located on the outside of the steel tower lowering point. The second horizontal adjustment structure is used to adjust the horizontal position of the first section 2 of the steel tower during the process of the first section 2 of the steel tower being detached from the hoisting to being completely lowered to the tower base 1 so that the first section 2 of the steel tower can be accurately lowered onto the tower base 1; multiple vertical lowering structures are installed on the tower base 1 and are located around the steel tower lowering point. The vertical lowering structures carry the first section 2 of the steel tower when the first section 2 of the steel tower is detached from the hoisting, and are used to gradually lower the first section 2 of the steel tower to the tower base 1.

[0073] Different from conventional construction equipment, the large-section steel tower first section positioning and adjusting device of the present application is arranged on the tower base and located on the outside of the lowering point of the steel tower first section. That is, during the lowering process of the steel tower first section, the device structure for adjusting the position of the steel tower first section is on the outside of the steel tower first section and will not occupy the inner space of the steel tower first section. The outer space is spacious, the operation is convenient, and the safety is improved.

[0074] The present application includes a first horizontal positioning structure and a second horizontal positioning structure, which respectively correspond to different lowering processes of the first section of the steel tower. The first horizontal positioning structure is used to horizontally adjust the first section of the steel tower during the process of hoisting and lowering the first section of the steel tower by the hoisting equipment, and the second horizontal positioning structure is used to horizontally adjust the first section of the steel tower during the process of lowering the first section of the steel tower by the vertical lowering structure. The two positioning processes and purposes are different. By adjusting the first horizontal positioning structure and the second horizontal positioning structure at different stages, it is ensured that the first section of the steel tower can be accurately aligned with the anchor rod, and that the first section of the steel tower can be accurately lowered onto the tower base.

[0075] The vertical lowering structure completes the system conversion with the lifting equipment after the anchor rod passes through the anchor rod hole of the first section of the steel tower. The weight of the first section of the steel tower is transferred from the lifting equipment to the vertical lowering structure. At this time, the lifting equipment can be removed, and the remaining lowering work is completed by the vertical lowering structure.

[0076] During actual construction, follow the steps below:

[0077] S1, arranging multiple groups of first horizontal adjustment structures, multiple groups of second horizontal adjustment structures and multiple groups of vertical lowering structures on the tower base 1;

[0078] S2, hoisting equipment lifts the first section 2 of the steel tower to above the anchor rod 3, so that the bottom surface of the first section 2 of the steel tower is close to the top of the anchor rod 3;

[0079] S3, horizontally adjust the first section 2 of the steel tower by the first horizontal adjustment structure so that the anchor holes on the first section 2 of the steel tower are aligned one by one with the anchors 3 below;

[0080] S4. After the alignment operation is completed, the hoisting equipment slowly lowers the first section 2 of the steel tower to the vertical lowering structure;

[0081] S5. The vertical lowering structure lowers the first section 2 of the steel tower. During this process, the second horizontal adjustment structure is used to horizontally adjust the first section 2 of the steel tower until the first section 2 of the steel tower is accurately lowered onto the tower base 1.

[0082] In some embodiments of the present application, the first horizontal adjustment structure is optimized. Specifically, Figure 1As shown, in this embodiment, multiple groups of first horizontal positioning structures are arranged on the tower base 1. At least one group of first horizontal positioning structures is arranged on each opposite side of the tower base 1 at the lowering point of the first segment 2 of the steel tower, and each group includes at least two first horizontal positioning structures symmetrically arranged around the center line of the first segment 2 of the steel tower. Figure 1 As shown, in this embodiment, four groups of first horizontal positioning structures are arranged on the tower base 1, each group of two first horizontal positioning structures are respectively located on the four sides of the first segment 2 of the steel tower, and two first horizontal positioning structures are arranged on each side.

[0083] Specifically, Figures 4-5 As shown, the first horizontal adjustment structure of the present embodiment includes two columns 4, a first parallel joint 5, a reaction seat 6 and a first horizontal jack 7. The column 4 is vertically anchored on the tower base 1, and the two columns 4 are arranged at intervals, and the direction of the intervals is parallel to the side surface of the corresponding first segment 2 of the steel tower; the first parallel joint 5 is horizontally arranged, and the first parallel joint 5 is fixed between the two columns 4; the reaction seat 6 is fixed on the first parallel joint 5, and the shell of the first horizontal jack 7 is fixed on the reaction seat 6, and the telescopic end can be telescopically abutted against the outer side of the first segment 2 of the steel tower in the horizontal direction.

[0084] The extension and retraction direction of the first horizontal jack 7 is perpendicular to the corresponding side of the first segment 2 of the steel tower. During actual adjustment, the first horizontal jack 7 lifts the side of the first segment 2 of the steel tower to offset the first segment 2 of the steel tower to one side, thereby adjusting the first segment 2 of the steel tower horizontally.

[0085] In order to ensure that the first horizontal jack 7 always moves in the set direction, a horizontal corbel 11 is installed on the column 4 and the first parallel joint 5 in this embodiment. The horizontal corbel 11 is installed on the side of the first parallel joint 5 facing the first section 2 of the steel tower. A limiting groove is provided on the horizontal corbel 11 for limiting the movement of the first horizontal jack 7 in the non-telescopic direction.

[0086] The limit groove limits the movement of the first horizontal jack 7 in the non-telescopic direction, forming a guide structure for the movement of the telescopic end of the first horizontal jack 7. The telescopic end of the first horizontal jack 7 is provided with a roller 10 that is rollingly connected to the outer side of the first segment 2 of the steel tower. The roller 10 can be connected to the telescopic end of the first horizontal jack 7 and can rotate around a horizontal axis. The roller 10 is in rolling contact with the side of the first segment 2 of the steel tower. On the one hand, it can reduce the friction between the two, and on the other hand, it can avoid damage to the side of the first segment 2 of the steel tower. At the same time, multiple rollers 10 form a guide structure for the lowering of the first segment 2 of the steel tower, which can limit the movement of the first segment 2 of the steel tower in the non-vertical direction, and further facilitate the lowering of the first segment 2 of the steel tower.

[0087] In actual application, the transport equipment transports the first segment 2 of the steel tower to the vicinity of the tower base 1, and the hoisting equipment lifts the first segment 2 of the steel tower to the top of the tower base 1, so that the pressure plate below the first segment 2 of the steel tower is close to the upper end of the anchor rod 3; at this time, the first horizontal jack 7 is level with the first segment 2 of the steel tower in the horizontal direction, and the offset direction of the first segment 2 of the steel tower is measured. The first horizontal jack 7 on the opposite side of the offset direction of the first segment 2 of the steel tower is used to apply a horizontal jacking force to the first segment 2 of the steel tower, forcing the first segment 2 of the steel tower to move in the opposite direction of the offset direction. Move in the vertical direction until the offset of the first section 2 of the steel tower is eliminated, so that the anchor holes on the first section 2 of the steel tower are aligned one by one with the anchors below; drive all the first horizontal jacks 7 to make the rollers 10 at the telescopic ends press against the outer side of the first section 2 of the steel tower to form a guide structure for limiting the non-vertical movement of the first section 2 of the steel tower; the lifting equipment slowly lowers the first section 2 of the steel tower, so that the anchors 3 pass through the corresponding anchor holes one by one, until the top surface of the first section 2 of the steel tower is close to the top of the anchors 3, completing the lowering process of the first section 2 of the steel tower by the lifting equipment.

[0088] In other embodiments of the present application, the second horizontal adjustment structure is optimized. Specifically, Figures 4-5 As shown, the second horizontal adjustment structure of the present embodiment includes a second horizontal link 8 and a second horizontal jack 9. The second horizontal link 8 is arranged between the two columns 4 along the horizontal direction, and the second horizontal link 8 is below the first horizontal link 5. The shell of the second horizontal jack 9 is fixed on the second horizontal link 8, and the telescopic end abuts against the outer side of the first segment 2 of the steel tower when the first segment 2 of the steel tower is detached from the hoisting and completely lowered to the tower base 1.

[0089] The second horizontal adjustment structure is constructed based on the first horizontal adjustment structure. The second horizontal adjustment structure is directly below the first horizontal adjustment structure. The first horizontal jack 5 and the second horizontal jack 9 are correspondingly installed on each group of columns 4, and the second horizontal jack 9 is directly below the first horizontal jack 5.

[0090] The second horizontal adjustment structure is used to horizontally adjust the first section 2 of the steel tower when the vertical lowering structure lowers it, ensuring that the first section 2 of the steel tower can be accurately lowered to the designed elevation. The second horizontal adjustment structure is used in conjunction with the vertical lowering structure, and the vertical lowering structure is lowered step by step. During each lowering process, the second horizontal adjustment structure can horizontally adjust the first section 2 of the steel tower.

[0091] In a further embodiment of the present application, the present embodiment optimizes the above-mentioned vertical downward structure, such as Figures 2-3As shown, the vertical lowering structure of this embodiment includes a supporting corbel 12, a first supporting pad 13 and a vertical jack 14. The supporting corbel 12 is a supporting structure arranged on the outside of the first section 2 of the steel tower; the first supporting pad 13 is a supporting structure arranged on the tower base 1 and located below the corresponding supporting corbel 12; the shell of the vertical jack 14 is placed on the first supporting pad 13, and the telescopic end is supported on the supporting corbel 12 when the first section 2 of the steel tower is detached from the hoisting.

[0092] The vertical jack 14 is supported on the first supporting pad 13, and the first supporting pad 13 is placed on the tower base 1. When the first section 2 of the steel tower is separated from the lifting equipment, its weight is completely transferred to the vertical jack 14, that is, to the tower base 1. The vertical jack 14 slowly lowers the first section 2 of the steel tower to realize the installation construction of the first section 2 of the steel tower.

[0093] In this embodiment, the process of lowering the first section 2 of the steel tower based on the vertical jack 14 is carried out step by step (the first section 2 of the steel tower is heavy and requires high installation accuracy. There may be installation problems if it is lowered all at once, so it is operated in steps). The vertical lowering structure of this embodiment also includes a second supporting pad 15 and a slide plate 16. The second supporting pad 15 is a supporting structure formed by multiple detachable pads arranged on the tower base 1; the slide plate 16 is installed at the upper end of the second supporting pad 15, and the upper end surface of the slide plate 16 is supported on the lower end surface of the first section 2 of the steel tower during the lowering process of the first section 2 of the steel tower in cooperation with the vertical jack 14.

[0094] The second supporting pad 15 forms a temporary pier, which can temporarily support the first section 2 of the steel tower, and facilitate the conversion of the vertical jack 14. At the same time, the second supporting pad 15 of this embodiment is formed by a plurality of stacked pads. In actual use, according to needs, the pads can be pulled out to cooperate with the vertical jack 14, so that the first section 2 of the steel tower can be gradually and slowly lowered.

[0095] The slide plate 16 of this embodiment is used in conjunction with the second horizontal jack 9. When the first section 2 of the steel tower is temporarily supported by the second support pad 15, the second horizontal jack 9 can be started to horizontally adjust the first section 2 of the steel tower. The first section 2 of the steel tower is placed on the slide plate 16. The second horizontal jack 9 can conveniently horizontally adjust the first section 2 of the steel tower. In theory, each time the vertical jack 14 and the second support pad 15 are converted, the second horizontal jack 9 can horizontally adjust the first section 2 of the steel tower.

[0096] For the arrangement of vertically lowered structures, Figure 1As shown, at least two groups of vertical lowering structures are provided on the tower base 1, each group includes at least two vertical lowering structures symmetrically arranged with the center line of the first segment 2 of the steel tower as the center, and each group of vertical lowering structures includes a group of first support pads 13 and second support pads 15 adjacent to the first support pads 13. The second support pads 15 of the first support pads 13 are arranged adjacent to each other to facilitate the subsequent lowering operation.

[0097] Moreover, the first support pad 13 of this embodiment is a support structure formed by a plurality of detachable pads arranged on the tower base 1 , that is, the vertical jack 14 of this embodiment can also be vertically adjusted according to the height of the first section 2 of the steel tower.

[0098] Specifically, when the first section 2 of the steel tower is separated from the lifting equipment, the lifting equipment lowers the first section 2 of the steel tower to the slide plate 16 of the second supporting pad 15. At this time, the first section 2 of the steel tower is completely supported by the second supporting pad 15; the vertical jack 14 starts to lift, and the telescopic end of the vertical jack 14 pushes the corresponding supporting bracket 12 to slowly lift the first section 2 of the steel tower. The first section 2 of the steel tower is transferred from the second supporting pad 15 to the vertical jack 14, and several pads in the second supporting pad 15 are pulled out. Then the vertical jack 14 retracts and lowers the first section 2 of the steel tower. Until the first section 2 of the steel tower is placed on the slide plate 16 again, the first section 2 of the steel tower is measured. If the first section 2 of the steel tower is offset, the second horizontal jack 9 located opposite to the deviation direction of the first section 2 of the steel tower can be used to push the first section 2 of the steel tower horizontally, so that the first section 2 of the steel tower slides on the slide plate 16 until the first section 2 of the steel tower completes the horizontal adjustment; then repeat the operation according to the above process until the first section 2 of the steel tower is completely lowered to the designed elevation. During this process, several pads in the first supporting pad block 13 can be pulled out for use as needed.

[0099] During actual construction, at least one group of first horizontal adjustment structures is arranged on each group of opposite sides of the tower base 1 at the lowering point of the first segment 2 of the steel tower, and each group includes at least two first horizontal adjustment structures symmetrically arranged with the center line of the first segment 2 of the steel tower as the center. A second horizontal adjustment structure is arranged directly below each group of first horizontal adjustment structures, and the columns 4 are vertically anchored on the tower base 1. The two columns 4 are arranged at intervals, and the direction of the intervals is parallel to the side of the corresponding first segment 2 of the steel tower. A first level joint 5 is arranged between the two columns 4, and a reaction seat 6 is fixed on the first level joint 5. The shell of the first horizontal jack 7 is fixed on the reaction seat 6, and the telescopic end can be telescopically abutted against the outer side of the first segment 2 of the steel tower in the horizontal direction. A second level joint 8 is arranged below the first level joint 5, and the second level joint 8 is arranged between the two columns 4 in the horizontal direction. The shell of the second horizontal jack 9 is fixed on the second level joint 8, and the telescopic end abuts against the outer side of the first segment 2 of the steel tower when the first segment 2 of the steel tower is detached from the hoisting and completely lowered to the tower base 1.

[0100] At least two groups of vertical lowering structures are arranged on the tower base 1, each group includes at least two vertical lowering structures symmetrically arranged with the center line of the first segment 2 of the steel tower as the center, each group of vertical lowering structures includes a group of first support pads 13 and second support pads 15 adjacent to the first support pads 13, the first support pads 13 and the second support pads 15 are support structures formed by multiple pads stacked on the tower base 1, a vertical jack 14 is installed on the first support pad 13, a slide plate 16 is installed on the second support pad 15, and a support bracket 12 is installed at a position corresponding to the first support pad 13 on the outer side of the first segment 2 of the steel tower;

[0101] The transport equipment transports the first section 2 of the steel tower to the vicinity of the tower base 1, and the hoisting equipment lifts the first section 2 of the steel tower to the top of the tower base 1, so that the pressure plate below the first section 2 of the steel tower is close to the upper end of the anchor rod 3; the first horizontal jack 7 on the opposite side of the offset direction of the first section 2 of the steel tower is used to apply a horizontal pushing force to the first section 2 of the steel tower, forcing the first section 2 of the steel tower to move in the opposite direction of the offset direction until the offset of the first section 2 of the steel tower is eliminated, so that the anchor holes on the first section 2 of the steel tower are aligned with the anchor rods below one by one; all the first horizontal jacks 7 are driven to make the rollers 10 at the telescopic ends press against the outer side of the first section 2 of the steel tower to form a guiding structure for limiting the non-vertical movement of the first section 2 of the steel tower; the hoisting equipment slowly lowers the first section 2 of the steel tower, so that the anchor rods 3 pass through the corresponding anchor rod holes one by one, until the top surface of the first section 2 of the steel tower is close to the top of the anchor rod 3, completing the lowering process of the first section 2 of the steel tower by the hoisting equipment;

[0102] The hoisting equipment lowers the first section 2 of the steel tower to the slide plate 16 of the second supporting pad 15, and the vertical jack 14 starts to lift. The telescopic end of the vertical jack 14 pushes the corresponding supporting corbel 12, slowly lifting the first section 2 of the steel tower. The first section 2 of the steel tower is transferred from the second supporting pad 15 to the vertical jack 14, and several pads in the second supporting pad 15 are pulled out. Then the vertical jack 14 retracts and lowers the first section 2 of the steel tower until the first section 2 of the steel tower is placed on the slide plate 16 again, and the first section 2 of the steel tower is measured. If the first section 2 of the steel tower is offset, the second horizontal jack 9 located in the opposite direction of the deviation of the first section 2 of the steel tower is used to push the first section 2 of the steel tower horizontally, so that the first section 2 of the steel tower slides on the slide plate 16 until the first section 2 of the steel tower completes the horizontal adjustment; then repeat the operation according to the above process until the first section 2 of the steel tower is completely lowered to the design elevation;

[0103] After the first section 2 of the steel tower falls to the designed elevation, grouting is performed between the bottom of the first section 2 of the steel tower and the tower base 1, and the anchor rods 3 are tensioned, and the installation of the first section 2 of the steel tower is completed.

[0104] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning and adjusting device for the first section of a large-section steel tower, characterized in that: include, A plurality of first horizontal adjustment structures, the plurality of first horizontal adjustment structures being installed on the tower base (1) and located outside the four sides of the lowering point of the first section (2) of the steel tower, the first horizontal adjustment structures being used to adjust the horizontal position of the first section (2) of the steel tower when the first section (2) of the steel tower is being hoisted and lowered so that the anchor holes on the first section (2) of the steel tower are aligned one by one with the anchors (3) on the tower base (1); A plurality of second horizontal adjustment structures, the plurality of second horizontal adjustment structures being installed on the tower base (1) and located outside the four sides of the steel tower lowering point, the second horizontal adjustment structures being used to adjust the horizontal position of the first section of the steel tower (2) during the process of the first section of the steel tower (2) being released from the hoisting and completely lowered onto the tower base (1), so that the first section of the steel tower (2) can be accurately lowered onto the tower base (1); A plurality of vertical lowering structures are installed on the tower base (1) and are located around the lowering point of the steel tower. When the first section of the steel tower (2) is detached from the hoisting, the vertical lowering structures support the first section of the steel tower (2) and are used to gradually lower the first section of the steel tower (2) onto the tower base (1).

2. A large-section steel tower first segment positioning and adjustment device as claimed in claim 1, characterized in that: The first horizontal adjustment structure includes: Two columns (4), wherein the columns (4) are vertically anchored on the tower base (1); A first flat link (5), the first flat link (5) is arranged horizontally and transversely, and the first flat link (5) is fixed between two upright posts (4); A reaction seat (6), wherein the reaction seat (6) is fixed on the first parallel link (5); A first horizontal jack (7), wherein the shell of the first horizontal jack (7) is fixed on the reaction seat (6), and the telescopic end can be telescopically contacted with the outer side of the first section (2) of the steel tower.

3. A large-section steel tower first segment positioning and adjustment device as claimed in claim 2, characterized in that: The tower base (1) is provided with at least one group of first horizontal adjustment structures on each group of opposite sides of the lowering point of the first section (2) of the steel tower, and each group includes at least two first horizontal adjustment structures that are symmetrically arranged with the center line of the first section (2) of the steel tower as the center.

4. A large-section steel tower first segment positioning and adjustment device as claimed in claim 2, characterized in that: The second horizontal adjustment structure includes: A second flat link (8), the second flat link (8) being arranged between the two upright posts (4) in a horizontal direction, and the second flat link (8) being located below the first flat link (5); A second horizontal jack (9), the shell of which is fixed on the second horizontal link (8), and the telescopic end of which abuts against the outer side of the first segment (2) of the steel tower during the process of the first segment (2) of the steel tower being detached from the hoisting and completely lowered to the tower base (1).

5. A large-section steel tower first segment positioning and adjustment device as claimed in claim 2, characterized in that: The telescopic end of the first horizontal jack (7) is provided with a roller (10) which is rollingly connected to the outer side of the first segment (2) of the steel tower.

6. A large-section steel tower first segment positioning and adjustment device as claimed in claim 2, characterized in that: Also includes, A horizontal bracket (11) is installed on the side of the first horizontal link (5) facing the first section (2) of the steel tower, and a limit groove is provided on the horizontal bracket (11) for limiting the movement of the first horizontal jack (7) in the non-telescopic direction.

7. A large-section steel tower first segment positioning and adjustment device as claimed in claim 1, characterized in that: The vertical lowering structure comprises: A supporting bracket (12), wherein the supporting bracket (12) is a supporting structure arranged outside the first section (2) of the steel tower; A first supporting pad (13), wherein the first supporting pad (13) is a supporting structure arranged on the tower base (1) and located below a corresponding supporting corbel (12); A vertical jack (14), the shell of which is placed on a first supporting pad (13), and the telescopic end is supported on a supporting bracket (12) when the first section (2) of the steel tower is detached from the hoisting.

8. A large-section steel tower first segment positioning and adjustment device as claimed in claim 7, characterized in that: The vertically lowered structure further comprises: A second support pad (15), the second support pad (15) being a support structure formed by a plurality of detachable pads and arranged on the tower base (1); A slide plate (16) is installed on the upper end of the second supporting pad (15), and the upper end surface of the slide plate (16) is supported on the lower end surface of the first segment (2) of the steel tower when the first segment (2) of the steel tower cooperates with the vertical jack (14) to be lowered.

9. A large-section steel tower first segment positioning and adjustment device as claimed in claim 8, characterized in that: At least two groups of vertically lowered structures are arranged on the tower base (1), each group comprising at least two vertically lowered structures symmetrically arranged with the center line of the first section (2) of the steel tower as the center, and each group of vertically lowered structures comprising a group of first support pads (13) and second support pads (15) adjacent to the first support pads (13).

10. A large-section steel tower first segment positioning and adjustment device as claimed in claim 7, characterized in that: The first supporting pad (13) is a supporting structure arranged on the tower base (1) and formed by a plurality of detachable pads.

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