Arc-shaped keel structure

By designing an arc-shaped keel structure, the problems of air bubbles and strength in the construction of arc-shaped structures were solved. By setting positioning adjustment parts and connecting methods, the structural components and connections in the construction process were realized. This solved the problems of insufficient toughness of custom wooden formwork and difficulty in expelling air bubbles during vibration of custom steel formwork, thus improving construction quality and structural strength.

CN223647420UActive Publication Date: 2025-12-09CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +2
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Patent Information

Application Number
CN202423082125.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-09
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In existing technologies, the construction of curved structures is difficult, custom-made wooden formwork lacks toughness, and air bubbles are difficult to expel during vibration of custom-made steel formwork, which affects the quality of the building.

Method used

The structure adopts an arc-shaped keel structure, including keel units, connecting components and axle angle components. The axle angle angle can be adjusted by adjusting the adjusting components, and the connecting components enhance the structural strength, ensuring that air bubbles are discharged during vibration and avoiding honeycomb pitting.

Benefits of technology

It improves the construction quality of curved structures, reduces air bubbles, enhances structural strength, and ensures the appearance quality of the building.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of construction structures, in particular to an arc-shaped keel structure which comprises a plurality of keel units arranged in a straight line and a connecting assembly used for connecting the keel units. Each keel unit comprises a supporting assembly, a formwork assembly arranged on the supporting assembly and an axillary angle assembly. The haunch angle assembly comprises a plurality of adjusting pieces arranged on the supporting assembly, the adjusting pieces comprise side positioning blocks fixed to the supporting assembly and haunch angle adjusting blocks arranged on the side positioning blocks, and the haunch angle adjusting blocks have a plurality of specifications. When the arc-shaped keel structure is built, the keel units can be connected through the connecting assemblies, so that the structural strength of the arc-shaped keel structure is improved; the keel unit can be built through the supporting assembly and the formwork assembly, meanwhile, an adjusting piece can be installed at the haunch angle of the keel unit through the haunch angle assembly, the haunch angle of the keel unit can be adjusted through the adjusting piece, the honeycomb and pitted surface problem caused by bubble accumulation is avoided, and the building quality is guaranteed.
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Description

Technical Field

[0001] This application relates to the field of construction structure technology, and in particular to an arc-shaped keel structure. Background Technology

[0002] Horseshoe-shaped structures are commonly used in the construction of underground transportation structures. They are usually composed of curved structures. The conventional construction method for curved structures is to use custom steel formwork or custom wooden formwork for concrete pouring. However, with increasingly higher requirements for architectural artistic expression, more and more irregular structures such as curved and irregular shapes are appearing in building construction, leading to increased construction difficulty: the wooden joists of custom wooden formwork are prone to insufficient toughness during construction, making it difficult to guarantee the required curvature of the structure, affecting the appearance quality of the concrete, and resulting in higher costs; if custom steel formwork is used, because the surface of the steel formwork is hard and dense, it is not easy to form resonance with the vibrator during vibration, causing air bubbles to accumulate at the armpit corners. These air bubbles are not easy to expel due to the structural form of the armpit corners, resulting in many air holes on the concrete surface, forming honeycomb pits, which affects the construction quality. Utility Model Content

[0003] In order to improve the problem of air bubbles accumulating during vibration of arc-shaped structures in related technologies, this utility model provides an arc-shaped keel structure.

[0004] An arc-shaped keel structure includes a plurality of keel units arranged in a straight line and a connecting assembly for connecting the plurality of keel units; the keel unit includes a support assembly, a template assembly disposed on the support assembly, and an armpit corner assembly; the armpit corner assembly includes a plurality of adjusting members disposed on the support assembly, the adjusting members including a side positioning block fixed to the support assembly and an armpit corner adjusting block disposed on the side positioning block, the armpit corner adjusting block having several specifications.

[0005] Furthermore, the support assembly includes an arc-shaped keel, a support rod connected to the arc-shaped keel, and a connecting rod, wherein the connecting rod is connected to both the arc-shaped keel and the support rod; the side positioning blocks are disposed on both sides of the arc-shaped keel, and the axle angle adjustment block is disposed between the side positioning blocks.

[0006] Furthermore, the side positioning block has a positioning hole, the axillary angle adjusting block has a positioning post, the positioning post is fixed in the positioning hole, and the axillary angle adjusting block abuts against the support component.

[0007] Furthermore, the template component includes a keel template, which is disposed on one side of the arc-shaped keel component.

[0008] Furthermore, the connecting component includes a connecting keel member, one end of which is connected to the support component of one of the keel units, and the other end of which is connected to the support component of another keel unit.

[0009] Furthermore, the connecting assembly also includes a positioning steel pipe and a single-sided bolt; the positioning steel pipe is overlapped and fixed to several keel units, and the axis of the positioning steel pipe is parallel to the axis of the connecting keel; the single-sided bolt is inserted and fixed to the positioning steel pipe and connected to the support assembly.

[0010] Furthermore, the support assembly also includes a positioning plate for cooperating with the connecting assembly, the positioning plate being disposed on the connecting rod; the positioning steel pipe abutting against the positioning plate.

[0011] This utility model has the following advantages:

[0012] 1. This utility model discloses an arc-shaped keel structure. By setting keel units, connecting components, and axle corner components, several keel units can be connected through the connecting components during the construction of the arc-shaped keel structure, thereby increasing the structural strength of the arc-shaped keel structure. The keel units can be constructed through the supporting components and template components. At the same time, the axle corner components allow the installation of adjusting parts at the axle corners of the keel units. By setting different specifications of adjusting parts, the axle corners of the keel units can be adjusted and adapted. During vibration, it can be easily coordinated with the vibrating rod. On the one hand, the tight coordination can reduce the generation of air bubbles, and on the other hand, it can help air bubbles to escape, avoiding honeycomb and pitted surface problems caused by air bubble accumulation, thus ensuring the quality of construction.

[0013] 2. The present invention relates to an arc-shaped keel structure, wherein the connecting components are provided with connecting keel parts, positioning steel pipes and single-sided bolts to connect keel units. The connecting keel parts can connect adjacent keel units for initial fixation, and the positioning steel pipes and single-sided bolts can connect several keel units, effectively strengthening the overall structural strength and ensuring that the arc-shaped keel structure does not deform during vibration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an arc-shaped keel structure according to an embodiment of this application;

[0016] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0017] Figure 3 for Figure 1 A magnified view of part B in the diagram.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Keel unit; 11. Support assembly; 111. Arc-shaped keel piece; 112. Support rod; 113. Connecting rod; 114. Positioning plate; 12. Template assembly; 13. Armpit angle assembly; 131. Adjusting piece; 1311. Side positioning block; 1312. Armpit angle adjusting block; 2. Connecting assembly; 21. Connecting keel piece; 22. Positioning steel pipe; 23. Single-sided bolt. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] Reference Figure 1 as well as Figure 2 An arc-shaped keel structure includes several keel units 1 arranged in a straight line and connecting components 2 for connecting the several keel units 1. The keel units 1 can reduce the generation of air bubbles and help air bubbles to be discharged by adjusting their axle angle. At the same time, after being connected by the connecting components 2, the overall structural strength of the arc-shaped keel structure can be guaranteed, and the deformation of the arc-shaped keel structure during vibration can be avoided, thus ensuring the construction quality.

[0025] Specifically, several keel units 1 are evenly arranged and parallel to each other. In this embodiment, the interval between adjacent keel units 1 is 300-400mm to ensure the overall structural strength. The keel unit 1 includes a support component 11, a template component 12 disposed on the support component 11, and an armpit corner component 13. The support component 11 is used to support and install the template component 12 and the armpit corner component 13. The support component 11 includes an arc-shaped keel piece 111, a support rod 112 connected to the arc-shaped keel piece 111, and a connecting rod 113. The connecting rod 113 is connected to both the arc-shaped keel piece 111 and the support rod 112. In this embodiment, the arc-shaped keel component 111 is a square tube, and the arc and arc length of the arc-shaped keel component 111 are determined according to the construction site; the support rod 112 connects the two ends of the arc-shaped keel component 111, and the support rod 112 is also a square tube. The support rod 112 can be connected to the arc-shaped keel component 111 by welding; the connecting rod 113 is arranged along the length direction of the arc-shaped keel component 111, one end of the connecting rod 113 is connected and fixed to the arc-shaped keel component 111, and the other end of the connecting rod 113 is connected and fixed to the support rod 112.

[0026] The template assembly 12 includes a keel template, which is disposed between adjacent support assemblies 11. One side of the keel template is fixedly disposed on one side of the arc-shaped keel member 111, and the other side of the keel template is fixedly disposed on one side of the adjacent arc-shaped keel member 111. The axillary angle assembly 13 includes a plurality of adjusting members 131 disposed on the support assembly 11. In this embodiment, the adjusting member 131 includes a side positioning block 1311 fixed to the support assembly 11 and an axillary angle adjusting block 1312 disposed on the side positioning block 1311. The side positioning blocks 1311 are disposed on both sides of the arc-shaped keel member 111 to adjust the axillary angle of the arc-shaped keel. Specifically, the side positioning blocks 1311 can be connected to the arc-shaped keel member 111 by means of threaded connection, or the side positioning blocks 1311 can be connected to the arc-shaped keel member 111 by means of fitting. It is understood that the side positioning blocks 1311 can also be disposed on both sides of the support rod 112 to adjust the axillary angle at the support rod 112.

[0027] Axillary angle adjusting blocks 1312 are disposed between side positioning blocks 1311. To facilitate the installation of axillary angle adjusting blocks 1312, the side positioning blocks 1311 are provided with positioning holes. The axillary angle adjusting blocks 1312 have positioning posts, which are inserted and fixed in the positioning holes and are interference-fitted with the positioning holes. The axillary angle adjusting blocks 1312 abut against the support assembly 11. The axillary angle adjusting blocks 1312 are available in several specifications, and different specifications of axillary angle adjusting blocks 1312 have different curvatures. After the curved keel piece 111 or support rod 112 is installed into the axillary angle adjusting blocks 1312, the roundness at the axillary angle can be increased, thereby reducing the influence of the axillary angle structure during vibration, making vibration more thorough, reducing the generation of air bubbles and facilitating the expulsion of air bubbles. It is understood that the specific number and specific installation position of the axillary angle adjusting blocks 1312 can be adjusted according to actual needs.

[0028] Reference Figure 1 as well as Figure 3 The connecting component 2 includes a connecting keel member 21. One end of the connecting keel member 21 is connected to the support component 11 of one of the keel units 1, and the other end of the connecting keel member 21 is connected to the support component 11 of another keel unit 1. In this embodiment, the connecting keel member 21 is laid along the length direction of the arc-shaped keel member 111 and the length direction of the support rod 112 for connection. By setting the connecting keel member 21, adjacent support components 11 can be connected to increase the overall strength of the arc-shaped keel structure.

[0029] To further improve the structural strength of the arc-shaped keel structure, the connecting component 2 also includes a positioning steel pipe 22 and a single-sided bolt 23. The positioning steel pipe 22 is overlapped and fixed to several keel units 1, and the axis of the positioning steel pipe 22 is parallel to the axis of the connecting keel component 21. The single-sided bolt 23 is inserted and fixed to the positioning steel pipe 22 and connected to the support component 11. Correspondingly, the support component 11 also includes a positioning plate 114 for cooperating with the connecting component 2. The positioning plate 114 is set on the connecting rod 113. The positioning steel pipe 22 abuts against the positioning plate 114. By setting the positioning plate 114, when the positioning steel pipe 22 is installed, it can be overlapped on the positioning plate 114 to achieve initial positioning and fixation. Then, the single-sided bolt 23 is installed. Under the limitation of the single-sided bolt 23, the positioning steel pipe 22 is fixedly abutted against the positioning plate 114 and the support rod 112 to ensure the structural strength of the arc-shaped keel structure.

[0030] The working principle of the arc-shaped keel structure of this application is as follows: the support component 11 is customized in the factory according to the technical parameters such as arc and arc length determined by the structural construction drawings and transported to the construction site; then the customized arc-shaped keel component 111, support rod 112, connecting rod 113 and positioning plate 114 are welded on site by connecting keel component 21 to form a preliminary keel unit 1; finally, several keel units 1 are fixed by steel bars, and the template component 12 and the support component 11 are fixed by positioning steel pipe 22 and single-sided bolt 23 to complete the overall assembly.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An arc-shaped keel structure, characterized in that, It includes a plurality of keel units (1) arranged in a straight line and a connecting component (2) for connecting the plurality of keel units (1); the keel unit (1) includes a support component (11), a template component (12) disposed on the support component (11) and an axillary angle component (13); the axillary angle component (13) includes a plurality of adjusting members (131) disposed on the support component (11), the adjusting member (131) includes a side positioning block (1311) fixed to the support component (11) and an axillary angle adjusting block (1312) disposed on the side positioning block (1311), the axillary angle adjusting block (1312) having a plurality of specifications.

2. The arc-shaped keel structure according to claim 1, characterized in that, The support assembly (11) includes an arc-shaped keel (111), a support rod (112) connected to the arc-shaped keel (111), and a connecting rod (113). The connecting rod (113) is connected to both the arc-shaped keel (111) and the support rod (112). The side positioning blocks (1311) are disposed on both sides of the arc-shaped keel (111), and the axillary angle adjustment block (1312) is disposed between the side positioning blocks (1311).

3. The arc-shaped keel structure according to claim 2, characterized in that, The side positioning block (1311) has a positioning hole, the axillary angle adjusting block (1312) has a positioning post, the positioning post is fixed in the positioning hole, and the axillary angle adjusting block (1312) abuts against the support assembly (11).

4. The arc-shaped keel structure according to claim 2, characterized in that, The template component (12) includes a keel template, which is disposed on one side of the arc-shaped keel component (111).

5. An arc-shaped keel structure according to any one of claims 2-4, characterized in that, The connecting component (2) includes a connecting keel member (21), one end of which is connected to the support component (11) of one of the keel units (1), and the other end of which is connected to the support component (11) of another keel unit (1).

6. The arc-shaped keel structure according to claim 5, characterized in that, The connecting assembly (2) also includes a positioning steel pipe (22) and a single-sided bolt (23); the positioning steel pipe (22) is overlapped and fixed to several keel units (1), and the axis of the positioning steel pipe (22) is parallel to the axis of the connecting keel (21); the single-sided bolt (23) is inserted and fixed to the positioning steel pipe (22) and connected to the support assembly (11).

7. The arc-shaped keel structure according to claim 6, characterized in that, The support assembly (11) further includes a positioning plate (114) for cooperating with the connecting assembly (2), the positioning plate (114) being disposed on the connecting rod (113); the positioning steel pipe (22) abuts against the positioning plate (114).