High-strength steel hot galvanizing composite structure extra-high voltage steel tube tower structure
By filling the ultra-high voltage steel pipe tower with a concrete core and covering it with a steel cage skeleton, the problem of insufficient integrity at the connection of the steel pipe tower was solved, and a high-strength and stable steel pipe tower structure was achieved, which enhanced the bending and impact resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-31
AI Technical Summary
The existing ultra-high voltage steel pipe towers have low integrity between the steel pipes at the connection points, resulting in poor bending resistance at the connection points and making them prone to bending and overturning.
The structure adopts a high-strength steel hot-dip galvanized composite structure. By filling the hollow steel pipe with a concrete core and covering it with a steel cage, the bending strength of the connection is improved by the concrete core and the steel cage. The connection is fixed by flanges and high-strength bolts on the outside.
It improves the overall bending strength and stability of the steel pipe tower, prevents the steel pipe from overturning or bending under strong winds or external impacts, and enhances the durability of the structure.
Smart Images
Figure CN224064034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultra-high voltage steel pipe tower technology, and in particular to an ultra-high voltage steel pipe tower structure with a high-strength steel hot-dip galvanized composite structure. Background Technology
[0002] Ultra-high voltage steel pipe towers are structural towers used to support ultra-high voltage transmission lines. Their main function is to support the transmission lines and transmit electricity to consumers over long distances.
[0003] Most existing ultra-high voltage steel pipe towers are made by directly connecting several groups of steel pipes vertically together. Adjacent steel pipes are connected by welding or bolts. Due to the low integrity between the steel pipes at the connection point, the bending resistance of this part is poor. When the ultra-high voltage steel pipe tower is subjected to a large wind load or impact from external objects, the connection point of the steel pipe is prone to bending, causing the steel pipe tower to deform or even overturn. Summary of the Invention
[0004] To address the technical problems of low integrity between steel pipes at the joints of existing ultra-high voltage steel pipe towers, which can easily lead to bending at the joints and deformation or even overturning of the tower, this utility model provides a high-strength steel hot-dip galvanized composite structure for ultra-high voltage steel pipe towers.
[0005] The technical solution provided by this utility model embodiment is as follows:
[0006] This utility model provides a high-strength steel hot-dip galvanized composite structure for ultra-high voltage steel pipe towers, comprising: a foundation and a tower body;
[0007] The tower body includes several sets of hollow steel pipes, steel cage skeleton, concrete core and cable support;
[0008] The hollow steel pipe is provided with a flange at its end. Several groups of hollow steel pipes are vertically connected together by high-strength bolts passing through the flange. The bottom hollow steel pipe is extended into and fixedly connected to the foundation by anchor bolts passing through the flange.
[0009] The steel reinforcement cage is enclosed inside the hollow steel pipe. The steel reinforcement cage includes several sets of main bars and several sets of stirrups. The sets of main bars are vertically arranged and distributed around the inside of the hollow steel pipe. The bottom of the main bars extends into and is fixedly connected to the foundation. The stirrups are enclosed around the sets of main bars.
[0010] The concrete core fills the interior of the hollow steel pipe, and the concrete core completely encloses the steel cage skeleton.
[0011] The cable bracket is fixedly connected to both sides of the hollow steel pipe at the top by bolts.
[0012] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:
[0013] In this invention, the hollow steel pipes joined together are filled with a concrete core, and the concrete core is covered with a steel cage skeleton connected as a whole. The concrete core and the steel cage skeleton greatly improve the bending strength of the connection of the hollow steel pipes, so that the hollow steel pipes can withstand higher lateral loads as a whole. They are not easy to overturn or bend under strong winds or external impacts, and have high strength and stability. In addition, the hollow steel pipes can play a good protective role for the concrete core inside, preventing the concrete core or the steel cage skeleton from being eroded by the external environment, further improving the durability of the structure. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A schematic diagram of the overall structure of a high-strength steel hot-dip galvanized composite ultra-high voltage steel pipe tower provided for an embodiment of this utility model;
[0016] Figure 2 A schematic diagram of the hollow steel pipe and cable support in a high-strength steel hot-dip galvanized composite structure ultra-high voltage steel pipe tower provided for an embodiment of this utility model;
[0017] Figure 3 A schematic diagram of the steel reinforcement cage and concrete core in a high-strength steel hot-dip galvanized composite structure ultra-high voltage steel pipe tower provided for an embodiment of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the reinforcing cage in a high-strength steel hot-dip galvanized composite ultra-high voltage steel pipe tower structure provided for an embodiment of this utility model.
[0019] Attached reference numerals: 1. Foundation; 2. Tower body; 21. Hollow steel pipe; 21A. Flange; 21B. Reinforcing rib; 21C. Maintenance ladder; 21D. Tie bar; 22. Reinforcing cage skeleton; 22A. Main reinforcement; 22B. Stirrup; 22C. Foam filling block; 23. Concrete core; 24. Cable bracket.
[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0021] The technical solution of this utility model will now be described with reference to the accompanying drawings. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also use other alternative methods to implement the invention. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0022] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0023] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0024] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0025] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0026] like Figures 1 to 4 As shown, an embodiment of this utility model provides a high-strength steel hot-dip galvanized composite structure for ultra-high voltage steel pipe towers, including: a foundation 1 and a tower body 2;
[0027] The tower body 2 includes several sets of hollow steel pipes 21, steel cage frame 22, concrete core 23 and cable bracket 24.
[0028] The hollow steel pipe 21 is provided with a flange 21A at its end. Several groups of hollow steel pipes 21 are vertically connected together by high-strength bolts passing through the flange 21A. The bottom hollow steel pipe 21 is extended into and fixedly connected to the foundation by anchor bolts passing through the flange 21A.
[0029] The reinforcing cage 22 is enclosed inside the hollow steel pipe 21. The reinforcing cage 22 includes several sets of main bars 22A and several sets of stirrups 22B. The several sets of main bars 22A are vertically distributed around the inside of the hollow steel pipe 21. The bottom of the main bars 22A extends into and is fixedly connected to the foundation 1. The stirrups 22B are wrapped around the several sets of main bars 22A.
[0030] The concrete core 23 fills the interior of the hollow steel pipe 21, and the concrete core 23 completely encloses the steel cage frame 22.
[0031] The cable bracket 24 is fixedly connected to both sides of the hollow steel pipe 21 at the top by bolts.
[0032] It should be noted that, in the installation process of this utility model of a high-strength steel hot-dip galvanized composite ultra-high voltage steel pipe tower structure, the bottom of the lowest-level reinforcing cage 22 is deeply embedded in the foundation 1. After the foundation 1 reaches its design strength, the bottom of the reinforcing cage 22 is tightly connected to the foundation 1, and the top of the anchor bolts embedded in the foundation 1 extends above the foundation. The bottom-level hollow steel pipe 21 is vertically fitted onto the outside of the reinforcing cage 22, and the anchor bolts pass through the flange 21A at the bottom of the hollow steel pipe 21. At this time, after tightening the nuts to the top of the anchor bolts, the bottom-level hollow steel pipe 21 can be fixed to the foundation and cover the reinforcing cage 22. Pouring is then poured into the interior of the hollow steel pipe 21. After the concrete core 23 is constructed, it fills the hollow steel pipe 21 and covers the reinforcing cage 22. When the concrete core 23 reaches the design strength, the second layer of reinforcing cage 22 is connected to the bottom of the bottom steel cage 22, and the second set of hollow steel pipes 21 is connected to the bottom hollow steel pipe 21. High-strength bolts are passed through the flange 21A between the two and nuts are tightened to both ends of the high-strength bolts, so that the hollow steel pipes 21 can be connected together. Then the concrete core 23 is poured into the second layer of hollow steel pipes 21. This is to achieve the construction and erection layer by layer. After the top layer of hollow steel pipes 21 is erected, the cable brackets 24 are installed on both sides of the hollow steel pipes 21.
[0033] Furthermore, the concrete core 23 is made of ultra-high strength concrete. The high-strength concrete adopts a low water-cement ratio in its material mix, uses a high-efficiency water-reducing agent, and incorporates steel fibers and polypropylene fibers. After molding, its compressive strength is ≥120Mpa, which effectively ensures the overall strength of the structure. Moreover, while ensuring the design strength, the cross-sectional dimensions of the structure can be reduced, thereby reducing the self-weight of the structure.
[0034] Furthermore, the hollow steel pipe 21 has a prismatic structure, which can better distribute and bear various loads, including wind pressure and conductor tension, thereby ensuring the stability and safety of the structure and giving it good mechanical properties. The surface of the hollow steel pipe 21 is provided with a hot-dip galvanized layer, which improves the overall corrosion resistance of the tower body 1 and further ensures the durability of the structure.
[0035] In one possible implementation, the interior of the steel cage frame 22 is provided with several sets of foam filling blocks 22C, which are fixedly connected to the interior of the steel cage frame 22 by tie wires.
[0036] It should be noted that the foam filler block 22C can reduce the amount of concrete core 23 poured and reduce the self-weight of the structure. Since the foam filler block 22C is located in the middle of the hollow steel pipe after molding, it will not have a significant impact on the strength of the concrete core 23 at the connection of the hollow steel pipe 21.
[0037] In one possible implementation, a reinforcing rib 21B is connected between the flange 21A and the hollow steel pipe 21, and the reinforcing rib 21B is distributed in several groups around the hollow steel pipe.
[0038] It should be noted that the reinforcing rib 21B can provide support between the flange 21A and the hollow steel pipe 21, making the flange 21A less prone to deformation under external force and ensuring that the two sets of hollow steel pipes 21 can be smoothly connected.
[0039] In one possible implementation, an inspection ladder 21C is provided on the outside of the hollow steel pipe 21, and several sets of tie bars 21D are connected to both sides of the inspection ladder 21C. The ends of the tie bars 21C extend into the hollow steel pipe 21 and are fixed inside the concrete core 23.
[0040] It should be noted that the tie bar 21D can fix the maintenance ladder 21C to the outside of the hollow steel pipe 21. During installation, the maintenance ladders 21C on the outside of the two sets of hollow steel pipes 21 are aligned so that the maintenance ladders 21C are connected. Later, the staff who perform power maintenance can climb along the outside of the hollow steel pipe 21 through the maintenance ladder 21C.
[0041] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:
[0042] In this invention, the hollow steel pipes joined together are filled with a concrete core, and the concrete core is covered with a steel cage skeleton connected as a whole. The concrete core and the steel cage skeleton greatly improve the bending strength of the connection of the hollow steel pipes, so that the hollow steel pipes can withstand higher lateral loads as a whole. They are not easy to overturn or bend under strong winds or external impacts, and have high strength and stability. In addition, the hollow steel pipes can play a good protective role for the concrete core inside, preventing the concrete core or the steel cage skeleton from being eroded by the external environment, further improving the durability of the structure.
[0043] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A high-strength steel hot-dip galvanized composite structure extra-high voltage steel pipe tower structure, characterized in that, The utility model relates to a kind of tower structures, including: foundation and tower body; The tower body includes several groups of hollow steel pipes, steel reinforcement cage skeleton, concrete core and cable support; The end of the hollow steel pipe is provided with flange plate, and several groups of hollow steel pipes are vertically butted together by high-strength bolt passing through the flange plate, and the bottommost hollow steel pipe is fixedly connected to the foundation by extending into the foundation through the anchor bolt passing through the flange plate; The steel reinforcement cage skeleton is wrapped inside the hollow steel pipe, and the steel reinforcement cage skeleton includes several groups of main reinforcement and several groups of stirrups, and several groups of main reinforcement are vertically distributed around the inside of the hollow steel pipe, and the bottom of the main reinforcement extends into and is fixedly connected in the foundation, and the stirrup is wrapped around several groups of main reinforcement; The concrete core is filled inside the hollow steel pipe, and the concrete core wraps the steel reinforcement cage skeleton as a whole. The cable support is fixedly connected on both sides of the topmost hollow steel pipe by bolt.
2. The high-strength steel hot-dip galvanizing composite structure extra-high voltage steel pipe tower structure according to claim 1, characterized by, The concrete core is of ultra-high strength concrete material, with a compressive strength of ≥120Mpa.
3. The high strength steel hot dip galvanizing composite EHV steel pipe tower structure according to claim 1, characterized by, The hollow steel pipe is of prismatic structure, and the surface of the hollow steel pipe is provided with a hot-dip galvanized layer.
4. The high-strength steel hot-dip galvanizing composite super high-voltage steel pipe tower structure according to any one of claims 1-3, characterized in that, Several groups of foam filling blocks are distributed at intervals inside the steel reinforcement cage skeleton, which are fixedly connected inside the steel reinforcement cage skeleton by lacing wire.
5. The high-strength steel hot-dip galvanizing composite super high-voltage steel pipe tower structure according to any one of claims 1-3, characterized in that, The flange plate and the hollow steel pipe are connected with reinforcing rib plates, which are distributed around the hollow steel pipe in several groups.
6. The high-strength steel hot-dip galvanizing composite super high-voltage steel pipe tower structure according to any one of claims 1-3, characterized in that, The outside of the hollow steel pipe is provided with a maintenance ladder, and several groups of tie bars are connected on both sides of the maintenance ladder, and the end of the tie bar extends into the hollow steel pipe and is fixed inside the concrete core.