Equivalent steel reinforced concrete tower structure steel reinforced connecting flange joint

By using H-beams and flanges to replace vertical and circumferential reinforcing bars in steel-concrete tower sections, the problems of numerous processing steps, high material consumption, low processing precision, and low reliability of connection nodes in steel-concrete tower construction were solved, achieving the effects of simplifying the construction process, improving construction efficiency, and enhancing connection reliability.

CN224531901UActive Publication Date: 2026-07-21CHINA CONSTRUCTION EIGHTH BUREAU NEW CONSTRUCTION ENGINEERING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTRUCTION EIGHTH BUREAU NEW CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-06-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing steel-concrete structure tower construction suffers from numerous processing steps, high material consumption, low processing precision, and low reliability of connection nodes.

Method used

The steel-reinforced concrete tower structure adopts a steel-reinforced connection flange node. The vertical and circumferential steel bars are replaced by the first and second type steel flange assemblies. H-beams and flanges are used to connect adjacent steel-reinforced concrete tower sections, simplifying the processing procedures and improving the connection reliability.

Benefits of technology

It reduces the number of steel bar processing, binding and welding procedures, improves construction efficiency and quality, reduces material usage, enhances the stability and strength of connection nodes, and simplifies the construction process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of equivalent steel reinforced concrete tower structure steel bone connecting flange node, including steel reinforced concrete tower section, first steel flange component, second steel flange component and connecting piece;The bottom of steel reinforced concrete tower section has the first hollow part matched with first steel flange component, and the upper portion of first steel flange component is embedded in the bottom of steel reinforced concrete tower section by first hollow part;The top of steel reinforced concrete tower section has the second hollow part matched with second steel flange component, so that the lower portion of second steel flange component is fixedly embedded in the top of steel reinforced concrete tower section by second hollow part;When two adjacent steel reinforced concrete tower section are connected, the bottom of first steel flange component is fixedly connected with the top of second steel flange component by a plurality of connecting pieces.The utility model relates to the technical field of building structure, can solve the problems of many processing procedures, much material consumption, low machining precision and low reliability of connecting node in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a steel frame connecting flange node for an equivalent steel-reinforced concrete tower structure. Background Technology

[0002] In steel-concrete tower structures, adjacent tower sections are typically connected by connectors. For example, Chinese utility model patent CN119103003A discloses a circular steel-concrete tower structure, comprising a steel tower with an inner and outer ring. The outer ring is fitted over the inner ring, and concrete is poured between them. Adjacent tower sections are connected by a first connector; the first connector includes a steel-concrete square tube and two U-shaped components, with a U-shaped component at each end of the square tube. The tower sections are inserted into the openings of the U-shaped components, and the sections and U-shaped components are fixed together by bolts.

[0003] Most existing tower structures are reinforced concrete structures, containing a large number of vertical and circumferential reinforcing bars. This results in numerous processing, binding, and welding steps, leading to high material consumption and low processing accuracy. Furthermore, the U-shaped connection method suffers from low reliability. Therefore, there is a need for an equivalent steel-reinforced concrete tower structure with a steel-reinforced flange connection, which can solve the problems of numerous processing steps, high material consumption, low processing accuracy, and low connection reliability in existing technologies. Summary of the Invention

[0004] The purpose of this utility model is to provide an equivalent steel-reinforced concrete composite tower structure steel frame connection flange node, which can solve the problems of multiple tower processing steps, high material consumption, low processing accuracy, and low reliability of connection nodes in the existing technology.

[0005] This utility model is implemented as follows:

[0006] An equivalent steel-reinforced concrete tower structure steel-reinforced connecting flange node includes a steel-reinforced concrete tower section, a first type of steel flange assembly, a second type of steel flange assembly, and connectors. The bottom of the steel-reinforced concrete tower section has a first hollow portion matching the first type of steel flange assembly, allowing the upper part of the first type of steel flange assembly to be fixedly embedded in the bottom of the steel-reinforced concrete tower section through the first hollow portion. The top of the steel-reinforced concrete tower section has a second hollow portion matching the second type of steel flange assembly, allowing the lower part of the second type of steel flange assembly to be fixedly embedded in the top of the steel-reinforced concrete tower section through the second hollow portion. When two adjacent steel-reinforced concrete tower sections are connected, the bottom of the first type of steel flange assembly and the top of the second type of steel flange assembly are fixedly connected by several connectors.

[0007] The steel-reinforced concrete tower section is a hollow cylindrical structure that is narrow at the top and wide at the bottom. The first hollow part and the second hollow part are located at the bottom and top of the cylinder wall of the steel-reinforced concrete tower section, respectively, and the cross-sections of the first hollow part and the second hollow part are both annular structures that are concentrically set with the steel-reinforced concrete tower section.

[0008] The steel-reinforced concrete tower section is a reinforced concrete structure. The tower section wall is provided with vertical and circumferential reinforcing bars. The two ends of the vertical reinforcing bars extend into the first and second hollow sections respectively, so that the lower end of the vertical reinforcing bars overlaps with the first steel flange assembly and the upper end of the vertical reinforcing bars overlaps with the second steel flange assembly. Two rows of vertical reinforcing bars are arranged along the inner and outer sides of the first and second hollow sections. Several horizontally arranged circumferential reinforcing bars are circumferentially connected to the two rows of vertical reinforcing bars to form a reinforcing bar skeleton.

[0009] The first type of steel flange assembly includes a first flange and a first type of steel component. The lower end of the first type of steel component is fixedly connected to the top surface of the first flange. The first type of steel component is fitted into the first hollow part at the bottom of the steel-reinforced concrete tower section and overlaps with the vertical reinforcing bars. The bottom surface of the first flange is fitted and connected to the second type of steel flange assembly.

[0010] The second type of steel flange assembly includes a second flange and a second type of steel component. The upper end of the second type of steel component is fixedly connected to the bottom surface of the second flange. The second type of steel component is fitted into the second hollow part at the top of the steel-reinforced concrete tower section and overlaps with the vertical reinforcing bars. The top surface of the second flange is in contact with the bottom surface of the first flange and is fixedly connected by several connectors.

[0011] In the steel-reinforced concrete tower section located in the middle of the tower, the outer diameter of the second flange is the same as the outer diameter of the top surface of the steel-reinforced concrete tower section, and the outer diameter of the first flange is the same as the outer diameter of the bottom surface of the steel-reinforced concrete tower section. The inner diameter of the second flange is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section, and the inner diameter of the first flange is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section. Several bolt holes are formed at intervals on the inner edges of the second flange and the first flange, so that several connecting parts can be fixedly fitted and connected to the second flange and the first flange through the several bolt holes.

[0012] In the steel-reinforced concrete tower section located at the bottom of the tower, the outer diameter of the second flange is larger than the outer diameter of the top surface of the steel-reinforced concrete tower section, the outer diameter of the first flange is larger than the outer diameter of the bottom surface of the steel-reinforced concrete tower section, the inner diameter of the second flange is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section, and the inner diameter of the first flange is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section; a number of bolt holes are formed at intervals on the inner and outer edges of the second flange and the first flange located on the steel-reinforced concrete tower section, so that a number of connecting parts can be fixedly fitted and connected to the second flange through the number of bolt holes.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. This utility model, by providing a first type of steel flange assembly composed of a first type of steel component and a first flange, and a second type of steel flange assembly composed of a second type of steel component and a second flange, effectively replaces the vertical reinforcement of the steel-reinforced concrete tower section by using the first type of steel component and the second type of steel component, and effectively replaces the circumferential reinforcement of the steel-reinforced concrete tower section by using the first flange and the second flange to connect adjacent steel-reinforced concrete tower sections, can reduce the processing steps such as reinforcement processing, binding, and welding of the steel-reinforced concrete tower section, thereby simplifying the construction process, shortening the construction period, improving construction efficiency, and ensuring the reliability of the connection between adjacent steel-reinforced concrete tower sections.

[0015] 2. This utility model has a first type steel flange assembly consisting of a first type steel component and a first flange, and a second type steel flange assembly consisting of a second type steel component and a second flange. The processing of the flange and H-beam has high precision and shape, which can ensure that the size and shape of the steel-reinforced concrete tower section meet the design requirements, which helps to reduce errors and rework during construction and improve construction quality.

[0016] 3. This utility model has a first type steel flange assembly consisting of a first type steel component and a first flange, and a second type steel flange assembly consisting of a second type steel component and a second flange. This makes the connection node of the steel-reinforced concrete tower section more stable. Moreover, the H-beam and flange have higher strength and toughness than the traditional steel reinforcement skeleton, which can effectively reduce the amount of material used and thus reduce costs. Attached Figure Description

[0017] Figure 1 This is an elevation sectional view of the steel frame connection flange node of the equivalent steel-reinforced concrete tower structure of this utility model.

[0018] Figure 2 This is a bottom cross-sectional view (the middle concrete tower section) of the steel frame connecting flange node of the equivalent steel-reinforced concrete tower structure of this utility model.

[0019] Figure 3This is a bottom cross-sectional view (bottom concrete tower cylinder) of the steel frame connecting flange node of the equivalent steel frame concrete tower structure of this utility model.

[0020] Figure 4 This is a bottom cross-sectional view of the concrete tower in the steel frame connecting flange node of the equivalent steel-reinforced concrete tower structure of this utility model.

[0021] In the diagram, 1 is a steel-reinforced concrete tower section, 11 is vertical reinforcement, 12 is circumferential reinforcement, 2 is a connector, 31 is the first flange, 32 is the first steel component, 41 is the second flange, 42 is the second steel component, and 5 is a bolt hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Please see the appendix Figure 1 and attached Figure 4 An equivalent steel-reinforced concrete tower structure steel-reinforced connecting flange node includes a steel-reinforced concrete tower section 1, a first type of steel flange assembly, a second type of steel flange assembly, and connectors 2. The bottom of the steel-reinforced concrete tower section 1 has a first hollow portion matching the first type of steel flange assembly, allowing the upper part of the first type of steel flange assembly to be fixedly embedded in the bottom of the steel-reinforced concrete tower section 1 through the first hollow portion. The top of the steel-reinforced concrete tower section 1 has a second hollow portion matching the second type of steel flange assembly, allowing the lower part of the second type of steel flange assembly to be fixedly embedded in the top of the steel-reinforced concrete tower section 1 through the second hollow portion. When two adjacent steel-reinforced concrete tower sections 1 are connected, the bottom of the first type of steel flange assembly and the top of the second type of steel flange assembly are fixedly connected by several connectors 2.

[0024] The first type of steel flange assembly is embedded at the bottom of the steel-reinforced concrete tower section 1, and the second type of steel flange assembly is embedded at the top of the steel-reinforced concrete tower section 1. By using the first type of steel flange assembly to effectively replace the steel reinforcement skeleton in the steel-reinforced concrete tower section 1, the processing, binding, welding and other processes of the steel reinforcement skeleton can be reduced while ensuring the structural strength of the steel-reinforced concrete tower section 1. It can also ensure the reliability and durability of the connection between two adjacent steel-reinforced concrete tower sections 1.

[0025] Please see the appendix Figure 1 The steel-reinforced concrete tower section 1 is a hollow cylindrical structure that is narrow at the top and wide at the bottom. The first hollow part and the second hollow part are located at the bottom and top of the cylinder wall of the steel-reinforced concrete tower section 1, respectively, and the cross-sections of the first hollow part and the second hollow part are both annular structures that are concentrically set with the steel-reinforced concrete tower section 1.

[0026] The dimensions of the first and second hollow sections can be adaptively adjusted according to the size specifications of the first and second steel flange assemblies and the stress requirements of the connection nodes.

[0027] Please see the appendix Figure 1 The steel-reinforced concrete tower section 1 is a reinforced concrete structure. The tower section 1 has vertical steel bars 11 and circumferential steel bars 12 inside its wall. The two ends of the vertical steel bars 11 extend into the first and second hollow parts, respectively, so that the lower end of the vertical steel bars 11 overlaps with the first steel flange assembly and the upper end of the vertical steel bars 11 overlaps with the second steel flange assembly. Two rows of vertical steel bars 11 are arranged along the inner and outer sides of the first and second hollow parts. Several horizontally arranged circumferential steel bars 12 are circumferentially connected to each row of vertical steel bars 11 to form a steel reinforcement skeleton.

[0028] Within the first and second hollow sections, the first and second steel flange assemblies can effectively replace the vertical reinforcing bars 11 and circumferential reinforcing bars 12, reducing the processing, binding, and welding of the reinforcing bars and simplifying the construction process. Simultaneously, the installation of the first and second steel flange assemblies improves the reliability and convenience of the connection nodes of the steel-reinforced concrete tower section 1.

[0029] Please see the appendix Figure 1 The first type of steel flange assembly includes a first flange 31 and a first type of steel component 32. The lower end of the first type of steel component 32 is fixedly connected to the top surface of the first flange 31. The first type of steel component 32 is fitted into the first hollow part at the bottom of the steel-reinforced concrete tower section 1 and overlaps with the vertical reinforcing bar 11. The bottom surface of the first flange 31 is fitted and connected to the second type of steel flange assembly.

[0030] Preferably, the first steel component 32 can be an H-beam, with the upper and lower flanges of the H-beam overlapping with two vertical reinforcing bars 11. The H-beam can be used to equivalently replace the vertical reinforcing bars 11 in the steel-reinforced concrete tower section 1. The first flange 31 is used to replace the circumferential reinforcing bars 12 in the steel-reinforced concrete tower section 1 and to connect two adjacent steel-reinforced concrete tower sections 1.

[0031] Please see the appendix Figure 1 The second type of steel flange assembly includes a second flange 41 and a second type of steel component 42. The upper end of the second type of steel component 42 is fixedly connected to the bottom surface of the second flange 41. The second type of steel component 42 is fitted into the second hollow part at the top of the steel-reinforced concrete tower section 1 and overlaps with the vertical reinforcing bar 11. The top surface of the second flange 41 is in contact with the bottom surface of the first flange 31 and is fixedly connected by several connectors 2.

[0032] Preferably, the second steel component 42 can be an H-beam, with the upper and lower flanges of the H-beam overlapping with two vertical reinforcing bars 11. The H-beam can be used to equivalently replace the vertical reinforcing bars 11 in the steel-reinforced concrete tower section 1. The second flange 41 is used to replace the circumferential reinforcing bars 12 in the steel-reinforced concrete tower section 1 and to connect two adjacent steel-reinforced concrete tower sections 1.

[0033] Please see the appendix Figure 2 In the steel-reinforced concrete tower section 1 located in the middle of the tower, the outer diameter of the second flange 41 is the same as the outer diameter of the top surface of the steel-reinforced concrete tower section 1, and the outer diameter of the first flange 31 is the same as the outer diameter of the bottom surface of the steel-reinforced concrete tower section 1. The inner diameter of the second flange 41 is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section 1, and the inner diameter of the first flange 31 is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section 1. Several bolt holes 5 are formed at intervals on the inner edges of the second flange 41 and the first flange 31, so that several connecting parts 2 can be fixedly attached to the second flange 41 and the first flange 31 through the several bolt holes 5.

[0034] Since the steel-concrete tower section 1 located in the middle of the entire tower is subjected to relatively small forces, the first flange 31 and the second flange 41 are extended to the inner side of the steel-concrete tower section 1 in the middle, and bolt holes 5 are provided circumferentially at the extended part for connecting the first flange 31 and the second flange 41 of the upper and lower steel-concrete tower sections 1 through the connector 2.

[0035] Bolt holes 5 and connectors 2 are set in a one-to-one correspondence. The number of bolt holes 5 and connectors 2 and their spacing can be adjusted according to actual connection requirements.

[0036] Please see the appendix Figure 3 In the steel-reinforced concrete tower section 1 located at the bottom of the tower, the outer diameter of the second flange 41 is larger than the outer diameter of the top surface of the steel-reinforced concrete tower section 1, the outer diameter of the first flange 31 is larger than the outer diameter of the bottom surface of the steel-reinforced concrete tower section 1, the inner diameter of the second flange 41 is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section 1, and the inner diameter of the first flange 31 is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section 1. Several bolt holes 5 are formed at intervals on the inner and outer edges of the second flange 41 and the first flange 31 located on the inner and outer edges of the steel-reinforced concrete tower section 1, so that several connecting parts 2 can be fixedly attached to the second flange 41 and the first flange 31 through the several bolt holes 5.

[0037] Since the steel-concrete tower section 1 located at the bottom of the entire tower is subjected to relatively large forces, the first flange 31 and the second flange 41 are extended to the inner and outer sides of the bottom steel-concrete tower section 1, respectively, and bolt holes 5 are provided circumferentially at the extended parts for connecting the first flange 31 and the second flange 41 of the upper and lower steel-concrete tower sections 1 through the connector 2.

[0038] Please see the appendix Figure 1 To be continued Figure 4 The installation method and working principle of this utility model are as follows:

[0039] At the top and bottom of each steel-reinforced concrete tower section 1, steel flange assemblies (i.e., the first steel flange assembly at the bottom and the second steel flange assembly at the top) are installed. H-beams (i.e., the first and second steel components) are welded onto the flanges. The H-beams are embedded in the hollowed-out parts (i.e., the first and second hollowed-out parts) of the steel-reinforced concrete tower section 1 and are welded on both sides to the vertical reinforcing bars 11 of the steel reinforcement skeleton (i.e., the vertical reinforcing bars 11 and the circumferential reinforcing bars 12) in the steel-reinforced concrete tower section 1 to form an integral whole. The welding length between the vertical reinforcing bars 11 and the H-beams must meet the stress requirements.

[0040] During the fabrication of the steel-reinforced concrete tower section 1 in the factory, the dimensions of the H-beams and flanges are determined according to the drawings. Bolt holes are drilled on the flanges, and vertical reinforcing bars 11 and circumferential reinforcing bars 12 are installed in the specified positions according to the drawings to form a reinforcing steel skeleton. The H-beams are then welded to the vertical reinforcing bars 11 of the reinforcing steel skeleton. Finally, concrete is poured to form the steel-reinforced concrete tower section 1. During on-site installation, adjacent steel-reinforced concrete tower sections 1 are connected using bolts and nuts, i.e., connectors 2.

[0041] H-beams can be used to replace the vertical reinforcing bars 11 in the steel-reinforced concrete tower section 1. The second flange 41 is used to replace the circumferential reinforcing bars 12 in the steel-reinforced concrete tower section 1 and to connect two adjacent steel-reinforced concrete tower sections 1. The horizontal circumferential reinforcing bars 12 in the steel-reinforced concrete tower section 1 must meet the structural requirements.

[0042] If the overall height of the tower is relatively high, it is usually divided into three parts: bottom, middle, and top. Each part includes at least one steel-concrete tower section 1. Because the bottom steel-concrete tower section 1 experiences greater stress, the first flange 31 and the second flange 41 on the bottom surface of this section are made larger than the cross-section of the steel-concrete tower section 1 and extend inwards and outwards respectively. Bolt holes 5 are provided in the extended areas on both the inner and outer sides, and the upper and lower steel-concrete tower sections 1 are connected together using bolts and nuts, i.e., connectors 2. Similarly, the first flange 31 and the second flange 41 of the middle and upper steel-concrete tower sections 1 are larger than the cross-section of the steel-concrete tower section 1 and extend inwards, with bolt holes 5 provided in the inner extended areas. The upper and lower steel-concrete tower sections 1 are then connected together using bolts and nuts, i.e., connectors 2.

[0043] When connecting the two steel-reinforced concrete tower sections 1 in the middle and at the bottom, since the first flange 31 of the middle steel-reinforced concrete tower section 1 only extends inward, it is only necessary to connect the inner extension area of ​​the first flange 31 of the middle steel-reinforced concrete tower section 1 to the second flange 41 of the bottom steel-reinforced concrete tower section 1.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A steel-reinforced concrete tower structure steel-reinforced connecting flange node, characterized in that: The structure includes a steel-reinforced concrete tower section (1), a first type of steel flange assembly, a second type of steel flange assembly, and connectors (2). The bottom of the steel-reinforced concrete tower section (1) has a first hollow portion that matches the first type of steel flange assembly, so that the upper part of the first type of steel flange assembly is fixedly embedded in the bottom of the steel-reinforced concrete tower section (1) through the first hollow portion. The top of the steel-reinforced concrete tower section (1) has a second hollow portion that matches the second type of steel flange assembly, so that the lower part of the second type of steel flange assembly is fixedly embedded in the top of the steel-reinforced concrete tower section (1) through the second hollow portion. When two adjacent steel-reinforced concrete tower sections (1) are connected, the bottom of the first type of steel flange assembly and the top of the second type of steel flange assembly are fixedly connected by several connectors (2).

2. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 1, characterized in that: The steel-reinforced concrete tower section (1) is a hollow cylindrical structure that is narrow at the top and wide at the bottom. The first hollow part and the second hollow part are located at the bottom and top of the cylinder wall of the steel-reinforced concrete tower section (1), respectively. The cross-sections of the first hollow part and the second hollow part are both circular ring structures that are concentrically set with the steel-reinforced concrete tower section (1).

3. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 2, characterized in that: The steel-reinforced concrete tower section (1) is a reinforced concrete structure. The tower wall of the steel-reinforced concrete tower section (1) is provided with vertical steel bars (11) and circumferential steel bars (12). The two ends of the vertical steel bars (11) extend into the first hollow part and the second hollow part respectively, so that the lower end of the vertical steel bars (11) overlaps with the first type of steel flange assembly, and the upper end of the vertical steel bars (11) overlaps with the second type of steel flange assembly. Two vertical steel bars (11) are provided along the inner and outer sides of the first hollow part and the second hollow part. Several horizontally arranged circumferential steel bars (12) are connected to the two vertical steel bars (11) to form a steel reinforcement skeleton.

4. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 3, characterized in that: The first type of steel flange assembly includes a first flange (31) and a first type of steel component (32). The lower end of the first type of steel component (32) is fixedly connected to the top surface of the first flange (31). The first type of steel component (32) is fitted into the first hollow part at the bottom of the steel-reinforced concrete tower section (1) and overlaps with the vertical reinforcing bar (11). The bottom surface of the first flange (31) is fitted and connected to the second type of steel flange assembly.

5. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 4, characterized in that: The second type of steel flange assembly includes a second flange (41) and a second type of steel component (42). The upper end of the second type of steel component (42) is fixedly connected to the bottom surface of the second flange (41). The second type of steel component (42) is fitted into the second hollow part at the top of the steel-reinforced concrete tower section (1) and overlaps with the vertical reinforcing bar (11). The top surface of the second flange (41) is in contact with the bottom surface of the first flange (31) and is fixedly connected by several connectors (2).

6. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 5, characterized in that: In the steel-reinforced concrete tower section (1) located in the middle of the tower, the outer diameter of the second flange (41) is consistent with the outer diameter of the top surface of the steel-reinforced concrete tower section (1), the outer diameter of the first flange (31) is consistent with the outer diameter of the bottom surface of the steel-reinforced concrete tower section (1), the inner diameter of the second flange (41) is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section (1), and the inner diameter of the first flange (31) is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section (1). Several bolt holes (5) are formed at intervals on the inner edge of the second flange (41) and the first flange (31) located in the steel-reinforced concrete tower section (1), so that several connecting parts (2) can fix and fit the second flange (41) and the first flange (31) through several bolt holes (5).

7. The steel-reinforced concrete composite tower structure steel-reinforced connecting flange node according to claim 5, characterized in that: in In the steel-reinforced concrete tower section (1) located at the bottom of the tower, the outer diameter of the second flange (41) is larger than the outer diameter of the top surface of the steel-reinforced concrete tower section (1), the outer diameter of the first flange (31) is larger than the outer diameter of the bottom surface of the steel-reinforced concrete tower section (1), the inner diameter of the second flange (41) is smaller than the inner diameter of the top surface of the steel-reinforced concrete tower section (1), and the inner diameter of the first flange (31) is smaller than the inner diameter of the bottom surface of the steel-reinforced concrete tower section (1). The second flange (41) and the first flange (31) are each provided with a number of bolt holes (5) at intervals on the inner and outer edges of the steel-reinforced concrete tower section (1), so that a number of connectors (2) can fix and fit the second flange (41) and the first flange (31) together through the number of bolt holes (5).