KR100787593B1 - Steel frame retaining wall combined with steel net - Google Patents

Abstract

A steel frame retaining wall is provided to improve construction efficiency and to reduce a construction time by forming a mesh at four surfaces of the steel frame retaining wall. A steel frame retaining wall with a mesh comprises a steel frame, a square mesh(30), and a combining member. The steel frame has a front/rear left vertical member and a right vertical member(10a,10b) installed at the front and the rear part of left and right sides. The steel frame also has an upper horizontal member and a lower horizontal member(12a,12b) connected with the upper and the lower part of the front/rear left vertical member and the right vertical member, and at least one screen member(15a). The mesh is connected with an inner part of the steel frame. The front, the rear, and the two side surfaces of the mesh are vertically and integrally formed. The two side meshes are fixed to the upper and the lower horizontal members and the rear left and right vertical members, by the combining member. The front mesh is separated from the back side of the screen member.

Description

Steel Frame Retaining Wall Combined with Steel Net}

1 is an installation state diagram showing an embodiment of a conventional steel retaining wall,

Figure 2 is an exploded perspective view showing a grid mesh composite steel retaining wall structure according to an embodiment of the present invention,

3 is a perspective view showing a grating network composite steel frame retaining wall structure according to an embodiment of the present invention,

4 is a side view of FIG. 3;

5 is a perspective view showing a combined state of the grid mesh composite steel retaining wall of the present invention,

6 is an installation state diagram showing a state in which the grid-synthetic steel frame retaining wall of the present invention is installed.

<Explanation of symbols for the main parts of the drawings>

10a: left vertical member 10b: right vertical member

12a: upper horizontal member 12b: lower horizontal member

15a: screen member 30: grid

50: filling material 70: reinforcement soil

The present invention relates to a grating network composite steel retaining wall structure, and more particularly, by installing a grating network on the steel frame retaining wall to reduce the installation amount of the screen member and omit the bonding of the bracing material, it is possible to improve workability and workability In addition, the present invention relates to a grid-reinforced steel retaining wall structure that can reduce the required cost.

In general, the retaining wall refers to a wall that is built so as to prevent soil from falling down due to soil pressure, and is a structure to prevent ground collapse that occurs when the soil is piled up on a steeper slope or a mountain is cut down than a stable slope of the ground surface. .

The retaining wall has a gravity-type concrete retaining wall, which prevents the collapse of the ground by the weight of the concrete itself, and is adopted when the height is relatively low. However, the gravity-type concrete retaining wall has a disadvantage in that it is easily collapsed by wind and water damage.

Because rainwater penetrates the ground behind the retaining wall and weakens the ground, the earth pressure applied to the retaining wall becomes large and easily collapses.

In addition, in the case of the gravity-type concrete retaining wall, there are many limitations such as having to secure a place for placing concrete at a construction site and providing auxiliary facilities such as formwork.

Therefore, as a substitute for improving the above-mentioned problems of the gravity-type concrete retaining wall, there is a steel frame retaining wall.

The steel frame retaining wall is shown in FIG.

1 is an installation state diagram showing an embodiment of a conventional steel retaining wall.

As shown in the drawing, the conventional steel frame retaining wall is formed in a pyramid shape, the area of which decreases as it rises from the bottom to the upper layer, and the bottom steel frame 1a installed along the retaining wall installation line on the base surface, and It is formed of a central steel frame (1b) laminated and installed on the top of the bottom steel frame (1a), and the upper steel frame (1c) is stacked and installed on the upper portion of the central steel frame (1b), between the steel frame Is fastened by bolts, and the space between the inside of the steel frame and the adjacent steel frame is filled with a filling material such as soil or gravel.

The conventional steel frame retaining wall structure having the above-described structure has a good construction property as compared to the concrete retaining wall as the steel frame is assembled at the construction site, and is not restricted by securing the installation space, and has good water permeability and drainage function.

However, in the steel frame retaining wall, when the screen member serving as the screen of the filling material is bolted to the main member, there is a problem in that the amount of installation of the screen member is large and the amount of work and the working time increase, and the screen member is prevented from corrosion. There is a problem that the required cost is increased according to the special plating treatment such as zinc, and also there is a problem that the appearance is reduced when viewed from the outside according to the installation of the many screen members.

In addition to the above problems, there was a problem in that the amount of work and the work time increased according to the installation of the bracing material, which also had a problem in that the required cost was increased.

The present invention has been made to solve the above problems of the conventional steel frame retaining wall, by installing a grid net on the rectangular surface of the steel frame retaining wall, reducing the installation amount of the screen member, and at the same time omitting the bonding of the bracing material, workability And it is possible to improve the workability, to reduce the required cost, and to provide a grid mesh composite steel frame retaining wall structure that can improve the aesthetics.

As a means for achieving the above object, the grid-reinforced steel frame retaining wall structure of the present invention, so as to form a rectangular block shape with the front and rear left and right vertical members and front and rear left and right vertical members respectively installed on both the left and right sides. A steel frame including upper and lower horizontal members coupled to upper and lower vertical members of the front and rear left and right vertical members, and at least one screen member coupled to the front left and right vertical members, and coupled to the inside of the steel frame Characterized in that it comprises a rectangular grid that is installed.

Preferably, in the above configuration, the grid is formed of an integrated vertical network of front and rear and both sides, the vertical mesh of both sides is fixedly coupled to the upper and lower horizontal members and the rear left and right vertical members, respectively, by fastening members. It is characterized by.

Preferably, in the above configuration, the front vertical net is characterized in that spaced behind the screen member coupled to the front left and right vertical members.

Preferably, in the above configuration, the front and rear left and right vertical members and the upper and lower horizontal members are formed of "a" section steel, the screen member is characterized in that formed of "c" section steel.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing a grating network composite steel frame retaining wall structure according to an embodiment of the present invention, Figure 3 is a combined perspective view showing a grating network composite steel frame retaining wall structure according to an embodiment of the present invention, Figure 4 Is a side view of FIG. 3.

As shown in the drawing, the grid-reinforced steel retaining wall structure according to an embodiment of the present invention includes two pairs of front and rear left and right vertical members 10a and 10b respectively installed at the front and rear sides of the left and right sides, and the front and rear left and right sides. And two pairs of upper and lower horizontal members 12a and 12b coupled to upper and lower portions of the front and rear left and right vertical members 10a and 10b, respectively, to form a rectangular block shape together with the right vertical members 10a and 10b. A steel frame including at least one screen member 15a coupled to the front left and right vertical members 10a and 10b, and two pairs of front and rear left and right vertical members 10a constituting the steel frame; 10b) and a square grid 30 installed inside the pair of upper and lower horizontal members 12a and 12b.

In the above configuration, the rectangular grid net 30 is formed of integral vertical nets of front and rear and both sides (the upper net and the bottom net are not formed), and the vertical nets on both sides are bolts 3 and nuts ( 5) (as shown in Figure 5) by the fastening member made of the upper and lower horizontal members (12a, 12b) and the rear left and right longitudinal (10a, 10b) are respectively fixed.

In the grid 30 having the above-described configuration, the front vertical net 32 is spaced a predetermined width W behind the screen member 15a coupled to the front left and right longitudinal members 10a and 10b. Is installed. This is so that the front vertical net 32 primarily resists transverse earth pressure, and then the screen member 15a secondarily resists transverse earth pressure. It is intended to prevent further deformation by contacting the rear surface of the screen member 15a when deformation (storage phenomenon) occurs by resistance to lateral earth pressure.

On the other hand, as the vertical nets on both sides serve as a conventional bracing material, it is possible to omit the bracing material.

In the above configuration, the two pairs of front and rear left and right longitudinal members 10a and 10b and the two pairs of upper and lower horizontal members 12a and 12b are all formed of "a" shaped steel, and the screen member 15a is " It is formed of a "c" section, the "b" section and the "c" section has a plurality of fastening holes (1) to enable the disassembly coupling by the fastening member formed of a bolt (3) and a nut (5) (shown in Figure 5) ) Is formed.

The shape of the "a" and "c" sections is to reduce the weight at the same time to prevent a decrease in strength.

Hereinafter, the installation relationship of the grid mesh composite steel retaining wall structure according to an embodiment of the present invention with reference to the drawings below.

5 is a perspective view showing a combined state of the grid mesh retaining wall of the present invention, Figure 6 is an installation state diagram showing a state in which the grid mesh composite steel retaining wall of the present invention is installed.

As shown in the figure, two pairs of upper and lower horizontal members 12a and 12b and a front screen member 15a are connected to two pairs of front and rear left and right longitudinal members 10a and 10b by the fastening members 3 and 5. Forming a steel frame of the square block shape by combining, and combines the integrated grid net 30 by the fastening member inside the steel frame of the square block shape. At this time, the front vertical net 32 of the grid 30 is spaced apart from the rear of the screen member (15a) coupled to the front left and right vertical members (10a, 10b).

Then, the other retaining wall structure is joined to the retaining wall structure having the above-described bonding, and the laminate is appropriately laminated.

When the coupling is completed, the filling material 50 is filled in the grid net 30, and the reinforcement soil 70 is installed at the rear of the filling material 50.

The filler 50 may be sand or earthen sand such as gravel.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the grid mesh retaining wall structure of the present invention, as the square grid is installed on the inner surface of the steel frame retaining wall, it is possible to reduce the amount of installation of the screen member, and at the same time omit the bonding of the bracing material. By doing so, the workability and workability can be improved, the required cost can be reduced, and the aesthetics can be improved.

Claims (4)

delete delete Front and rear left and right vertical members respectively installed on both front and rear sides, and upper and lower horizontal members coupled to upper and lower portions of the front and rear left and right vertical members, respectively, to form a rectangular block shape together with the front and rear left and right vertical members. A steel frame including at least one screen member coupled to the front left and right longitudinal members; It comprises a; rectangular grid mesh that is coupled to the interior of the steel frame; The grid is formed of integral vertical nets of front and rear and both sides, the vertical nets of both sides are fixedly coupled to the upper and lower horizontal members and the rear left and right vertical members, respectively, by fastening members. The front vertical net is a grid mesh composite steel retaining wall structure, characterized in that spaced apart from the rear of the screen member coupled to the front left and right longitudinal members. The method according to claim 3, The front and rear left and right vertical members and the upper and lower horizontal members are formed of a "b" section steel, and the screen member is formed of a "c" section steel grid retaining wall structure.

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