KR100668692B1 - Jointing instrument for steel frame assembly - Google Patents

Abstract

The present invention comprises a main block having a symmetrical shape combined with each other in a pair, a link bar that can be radially connected at the outer circumference of the main block, and a horizontal line in which the main block can be arranged at opposite positions, The pair of main blocks each have a groove arranged radially inward, a shaft is provided in the groove of one main block and a shaft hole is drilled in the groove of the corresponding main block, and the link bar is connected to the shaft hole. Steel connection for the prefabricated structure, which has a structure with a matching insertion hole, inserts a link bar into the groove of the pair of main blocks to be integrated to form a protective retaining wall required for slopes, roadways, etc. Device.

Slope Protection Retaining Wall, Forest Road Retaining Wall, Prefabricated Steel Frame

Description

Jointing instrument for steel frame assembly

1 is an exploded perspective view showing the main part configuration of the present invention.

Figure 2 is a side cross-sectional view showing a main part assembled state of the present invention.

Figure 3 is a perspective view showing an example of a structure assembled by the present invention.

4 is a perspective view showing an example of a conventional assembly structure.

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

20a, 20b: 1 pair of main blocks 22: Link bar

24: through air 26: home

28 axis 30 axis shaft

32: insertion hole 34: bolt hole

36: bending groove 38: bending portion

40: rung

The present invention relates to a connection device for a prefabricated structure, and more particularly to a steel connection device for a prefabricated structure that can be suitably used for civil engineering, such as protection of roads or slopes, retaining wall protection.

In terms of protection of forest roads and slopes, casting of retaining walls is most effectively evaluated, but due to environmental constraints, gabions filled with gravel, such as worthwhile, are piled up rather than placing retaining walls.

However, the gabions require large amounts of aggregates, and the problem is that the environment must be destroyed to harvest them.

For this reason, in recent years, prefabricated steel frames, which are assembled and constructed in a form of a frame, have been in the limelight.

In general, the prefabricated steel frame generally adopts a bolt nut as a means of assembling the member. In this bolt fastening method, the edge length is important to prevent breakage at the connecting portion, and the cross section of the section steel for securing the edge length. The increase leads to an increase in the load received from the filling material such as soil, mortar, etc., which fills the interior, resulting in a problem that becomes difficult to set. Accordingly, there is a problem that frequently breakage of the steel frame due to the shear of the bolt in the actual application.

In order to solve the above problems, in order to reinforce the assembly structure, a plurality of reinforcing members should be installed inside, and in this case, as the assembly manual becomes cumbersome and material cost increases, only a minimum reinforcing member may be employed. It is only.

That is, as shown in FIG. 4, the screen member 4, the bracing member 6, and the like are connected to the element element at the end of the main member 2, and the steel frame having a desired shape is sequentially developed. Forming.

The main member 2 forms a center frame, and the screen member 4 prevents the fillers filled therein from coming out from the outside, and the bracing member 6 improves the strength of the mold.

As such, the method of connecting the various members to each element element is quite cumbersome, and the workability is not good, and many different types of members are required to be economically inconvenient, and after assembly, shearing occurs easily at the bolted portion. Frequently broken cases occur.

In the prefabricated steel frame, it is not possible to solve all the contained problems at once, but it is possible to simplify the assembly work, and even if the connected state can be easily assembled in any form while ensuring the robustness without the occurrence of shear, it is a significant advantage. Can be obtained.

An object of the present invention is to provide a steel connection device for a prefabricated structure having a structure that can be easily assembled in any form by a simple operation.

The present invention to achieve the above object, the main block is a symmetrical shape that is mutually combined in a pair, a link bar that can be connected radially from the outer periphery of the main block, and the main block can be arranged in the opposite position And a pair of main blocks each have a groove arranged radially inwardly, the groove of one main block is provided with a shaft and at the same time a shaft hole is drilled in the groove of the corresponding other main block, The link bar is configured to have a through hole corresponding to the shaft hole.

In the present invention described above, the groove of the main block may further have a bent groove therein, the link bar may be provided with a bent portion fitted to the bent groove at the tip.

The pair of main blocks may be implemented in a structure that is integrally integrated by bolts, nuts.

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

1 is a perspective view of a main part separation showing the configuration of a steel connection device for a prefabricated structure according to the present invention, in which a pair of main blocks 20a and 20b are symmetrically divided and around the main blocks 20a and 20b. It consists of a link bar 22 connected radially.

The main blocks 20a and 20b have an octagonal appearance, and a through hole 24 is drilled in the center thereof. In addition, grooves 26 are provided on each of the sides of the main blocks 20a and 20b opposite to each other, and one main block 20a is arranged with a shaft 28 at the center of the groove 26. The other main block 20b forms a shaft hole 30 suitable for the shaft 28.

The link bar 22 is inserted into a groove 26 formed at the distal end of the main block 20a, 20b, which has an insertion hole 32 at the distal end, so that the one main block 20a is provided. It is combined to be hung on the shaft 28 of.

The link bar 22 depicts only the tip shape in the drawing, but the opposite side is also the same shape.

The pair of main blocks 20a and 20b are integrally combined by a plurality of assembling bolt nuts (not shown), and bolt holes 34 are provided in each of the main blocks 20a and 20b to fasten these bolts and nuts. ) Are many open.

2 shows a connection structure between the pair of main blocks 20a and 20b and the link bar 22 described above.

When the pair of main blocks 20a and 20b are combined, the groove 26 is a closed groove, and the tip end of the link bar 22 penetrates the insertion hole 32 by the shaft 28 in the groove 26. It is connected firmly in a connected state.

At this time, when the bent groove 36 is extended to the inside of the groove 26 held by the pair of main blocks 20a and 20b, the tip of the link bar 22 is formed as the bent portion 38. Therefore, the secondary connection can be secured through this part, so that the connection can be connected with a higher tensile strength.

According to the present invention having the above-described configuration, the grooves 26 are provided only at three places except two places connected in a straight line at both main blocks 20a and 20b. In the diagonal connection, cross connection cannot be performed. This is because the connection is possible only in one diagonal direction.

As shown in Fig. 3, the present invention can easily perform assembly in a continuous form.

The pair of main blocks 20a and 20b are unfolded in a continuous structure by inserting and connecting a link bar 22 into each of the grooves 26. However, the central opening of the paired main blocks 20a and 20b is provided. An end portion of the crossbar 40 is coupled to 24 so that the pair of main blocks 20a and 20b are connected to each other by the crossbar 40.

The crossbar 40 is preferably combined with means such as screwing, pin connection, etc. in order to be firmly connected to the through hole 24 of the merged main blocks 20a and 20b.

The steel frame combined in an arbitrary shape is disposed at a predetermined inclined surface or retaining wall placing position, and when a normal screen member is attached to the outside, the filling material such as gravel is filled inside, and when the formwork is installed on the front surface, concrete pouring, mortar Through a process such as filling, it is formed into a desired support wall.

As described above, the present invention is a simple structure consisting of a link bar radially connected to the outer periphery of a pair of main blocks, and a horizontal structure for arranging the main blocks at opposite positions, and the form of continuous assembly has an arbitrary shape. Since it can be combined, it can be preferably implemented in the terrain of any condition.

In addition, the assembled form is in an angular lattice state, so it has the desired robustness. In addition, the equipment cost is low, and the assembly work is easy and easy to perform the installation work in a short time. It has economic advantages.

Claims (3)

A main block having a symmetrical shape combined with each other in a pair; A link bar that can be radially connected at the outer circumference of the main block; A crossbar having both main blocks coupled to both ends thereof such that the main blocks face each other; Grooves radially arranged inside the pair of main blocks; A shaft provided in the groove of one main block, and a shaft hole drilled in the groove of the other main block corresponding to the shaft; The insertion hole formed in the tip of the link bar and coincides with the shaft hole Include, The groove of the main block further has a bent groove therein, the link bar is a steel connecting device for a prefabricated structure having a bent portion fitted to the bent groove. delete The steel connection device for prefabricated structure according to claim 1, wherein the pair of main blocks are integrally integrated by bolts and nuts.

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