CN216788436U - Novel connection structure of tunnel steel bow member and reinforcing bar net - Google Patents
Novel connection structure of tunnel steel bow member and reinforcing bar net Download PDFInfo
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- CN216788436U CN216788436U CN202220408560.0U CN202220408560U CN216788436U CN 216788436 U CN216788436 U CN 216788436U CN 202220408560 U CN202220408560 U CN 202220408560U CN 216788436 U CN216788436 U CN 216788436U
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Abstract
The utility model relates to the field of tunnel primary supporting structures, in particular to a novel connecting structure of tunnel steel arch frames and a reinforcing mesh. The connection mode of the utility model not only realizes the quick assembly of the reinforcing steel bar net, but also can realize the quick welding, has convenient and quick installation, high efficiency, firm and reliable connection and difficult shedding, improves the construction efficiency of the connection of the steel arch frame and the reinforcing steel bar net, and meets the construction principle of early support of the tunnel.
Description
Technical Field
The utility model relates to the field of tunnel primary supporting structures, in particular to a novel connecting structure of a tunnel steel arch frame and a reinforcing mesh.
Background
In a mountain tunnel excavated by a mining method, a steel arch needs to be arranged in a primary support of an IV-V level surrounding rock cave section, the steel arch is generally made of I-steel and processed on a construction site, and after the primary support is installed with the steel arch, a layer of reinforcing mesh is often laid between the steel arch and a rock mass to keep the sprayed concrete to be better bonded with the rock mass.
The reinforcing bar net is generally worn through from the steel bow member outside to traditional reinforcing bar net mode of laying, again with reinforcing bar net beading in adjacent steel bow member, wastes time and energy, is not conform to the principle of "early supporting, tight closure".
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a novel connection structure of a modularized tunnel steel arch frame and a reinforcing mesh, which is simple and convenient to construct, safe, efficient and reliable in installation quality.
In order to realize the purpose, the utility model adopts the technical scheme that:
a novel connecting structure of tunnel steel arch frames and a reinforcing mesh is characterized in that a plurality of groups of reinforcing steel bar hooks are welded between inner side wing plates between two adjacent steel arch frames, and two sides of the reinforcing mesh are hung on the reinforcing steel bar hooks and are welded with the steel arch frames.
As the preferable scheme of the utility model, the reinforcing mesh adopts a phi 12 reinforcing mesh, the aperture of each reinforcing mesh is 10cm multiplied by 10cm, the reinforcing meshes are fixed in a lap joint mode, and the lap joint width is 3 meshes.
As the preferred scheme of the utility model, the steel bar hooks are arranged at equal intervals and adopt threaded steel bars.
As a preferred scheme of the utility model, a plurality of groups of steel bar hooks are arranged on flanges on two sides of the inner wing plate.
The connection mode of the utility model not only realizes the quick assembly of the reinforcing steel bar net, but also can realize the quick welding, has convenient and quick installation, high efficiency, firm and reliable connection and difficult shedding, improves the construction efficiency of the connection of the steel arch frame and the reinforcing steel bar net, and meets the construction principle of early support of the tunnel.
Drawings
Fig. 1 is a schematic view of a novel tunnel steel arch and reinforcing mesh connection structure according to an embodiment of the present invention;
fig. 2 is a reinforcement mat welded in advance according to size;
FIG. 3 is a schematic view of the arrangement of the rebar hooks on two I-shaped steels;
in the figure: 1-I-steel; 2-reinforcing mesh; 3-a steel bar hook; 4-connecting ribs.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1, the present embodiment is a novel connection structure of a tunnel steel arch and a reinforcing mesh, and is suitable for preliminary bracing of various tunnels. In this embodiment, two steel arches are connected through a plurality of connecting steel bars 4 and are arranged perpendicular to the steel arches, and the connecting steel bars 4 are generally threaded steel bars.
Fig. 2 shows a steel bar net 2 welded in advance according to the size, and during construction, the steel bar net is directly hung on a steel bar hook 3 according to the size and then is welded. The reinforcing mesh adopts phi 12 reinforcing mesh, the aperture of each reinforcing mesh is 10cm multiplied by 10cm, the reinforcing meshes are fixed in a lap joint mode, and the lap joint width is 3 meshes.
Fig. 3 is an arrangement mode of the steel bar hooks 3 on the i-shaped steel 1, the steel bar hooks 3 adopt threaded steel bars, the threaded steel bars are processed in a steel bar field in advance, and the threaded steel bars can be directly assembled on the site.
During construction, a plurality of reinforcing steel bar hooks 3 are arranged on the flange on the outer side of the I-shaped steel 1 at equal intervals according to the size of a reinforcing steel bar net, and the flanges on the two sides are arranged and directly welded. After the I-shaped steel is assembled, the two sides of the reinforcing mesh 2 are hooked on the reinforcing hooks 3 of the two I-shaped steel flanges. And then welding the reinforcing mesh and the I-shaped steel together.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a novel connection structure of tunnel steel bow member and reinforcing bar net which characterized in that: several groups of reinforcing steel bar hooks are welded between the inner side wing plates between two adjacent steel arch frames, and two sides of the reinforcing mesh are hung on the reinforcing steel bar hooks and are welded with the steel arch frames.
2. The novel connection structure of tunnel steel arch and reinforcing mesh of claim 1, wherein: the reinforcing mesh adopts phi 12 reinforcing mesh, the aperture of each reinforcing mesh is 10cm multiplied by 10cm, the reinforcing meshes are fixed in a lap joint mode, and the lap joint width is 3 meshes.
3. The new connecting structure of tunnel steel arch and reinforcing mesh of claim 1, wherein: the steel bar hooks are arranged at equal intervals and adopt threaded steel bars.
4. The new connecting structure of tunnel steel arch and reinforcing mesh of claim 1, wherein: and a plurality of groups of steel bar hooks are uniformly arranged on flanges on two sides of the inner wing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220408560.0U CN216788436U (en) | 2022-02-28 | 2022-02-28 | Novel connection structure of tunnel steel bow member and reinforcing bar net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220408560.0U CN216788436U (en) | 2022-02-28 | 2022-02-28 | Novel connection structure of tunnel steel bow member and reinforcing bar net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216788436U true CN216788436U (en) | 2022-06-21 |
Family
ID=82001638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220408560.0U Active CN216788436U (en) | 2022-02-28 | 2022-02-28 | Novel connection structure of tunnel steel bow member and reinforcing bar net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216788436U (en) |
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2022
- 2022-02-28 CN CN202220408560.0U patent/CN216788436U/en active Active
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