KR20100057446A - Apparatus for preventing vertical structure from falling sideward - Google Patents

Abstract

A vertical structure fall prevention device is disclosed that is simple and quick to install and that effectively prevents the vertical structure from falling. According to an aspect of the present invention, two steel pipes having a bolt formed at one end, a turnbuckle having a nut formed at both sides thereof to adjust the degree of insertion of the bolt of the steel pipe by a rotation operation, and coupled to the other end of the steel pipe, There is provided a vertical structure fall prevention apparatus including two clamps for fixing the steel pipe to the shear reinforcing bar on the vertical structure. The turnbuckle can be applied to various vertical structure spacings and can be easily and quickly fixed between the vertical structures to fix the vertical structures, thereby preventing the fall of the vertical structures.

Description

Apparatus for preventing vertical structure from falling sideward}

The present invention relates to a vertical structure fall prevention device, and more particularly, to a vertical structure fall prevention device that can be installed easily and quickly and effectively prevents the vertical structure from falling.

The most common form of bridge construction is the girder bridge. The girder bridge is composed of an upper structure including an upper slab and a girder, and a lower structure including a foundation slab, shifts, and piers.

A girder is a member that sustains the load applied to the upper slab by a vehicle or a person. Generally, it is a cross between the main pillar and the pillar. When the girder is large, it is called a girder. These girders and beams may be collectively used for viewing, but are not limited thereto.

Hereinafter, for convenience of description, the terms girder, beam, or purple are used interchangeably, but these terms are obviously used to refer to a member that supports the load applied to the upper slab as described above.

Girder bridges can be divided into several types according to the shape of the girder. Among them, PSC bridges use prestressed concrete (PSC) girders.

When constructing bridges using PSC girders, a plurality of girders are mounted on the piers or shifts, and concrete is then placed to form upper slabs on top of them. It takes a certain time from the mounting of the girder to concrete placement, during which time the girder is turned or changed position by external force such as wind.

1 and 2 are a schematic perspective view and a front view showing a state of supporting the conventional girder.

A plurality of girders 20 are mounted on the pier or alternating copings 10. In order to prevent the girder 20 from being turned over or repositioned by external force for a time until concrete for forming the upper slab is placed on the top of the girder 20, the PC strand 30, the anti-conduction bar ( 40), cross girder 50, wedge 35, elastic bearing shoe 55 and the like are used.

The method of installing the wedge 35 or installing the elastic bearing shoe 55 at the bottom of the girder 20 has a problem in that there is a lack of structural safety against external force and there is little support effect if not correctly installed.

In the case of using the PC strand (30), the fall prevention method is as follows. Fixing anchor 15 is fixed to the rebar of the coping (10). PC strand wire 30 is provided with a turnbuckle 35 is fixed to the upper end and the fixed anchor 15 of the girder 20, respectively, so that the girder 20 is maintained in tension. Further, the anti-conduction bar 40 is installed in parallel to the shear reinforcing bar 25 above the neighboring girders 20 at predetermined intervals or at arbitrary intervals. And cross girder 50 is installed at both ends of the girder 20 is completed fall prevention work.

However, in the case of the PC strand 30, it is difficult to form a ring, it is difficult to apply to the site to be fixed to the top of the girder 20. In addition, when the cross girder 50 is constructed, the PC strand wire 30 for the fall prevention is interfered with for the convenience of the work, and thus the removal of the PC strand wire 30 is inevitable, and thus there is a problem that the stability is lowered. And there is a disadvantage that the work efficiency is reduced as the number of cross girders 50 in the central portion is reduced.

The above-mentioned beam is one of the vertical structures (vertical structure) used in construction or civil engineering, and the above problems are general problems of vertical structures such as columns, walls, beams, etc. in addition to beams.

Accordingly, the present invention provides a vertical structure fall prevention device that can be expanded and applied to various vertical structure spacings by using a turnbuckle, and can be easily and quickly fixed between the vertical structures to fix the vertical structures. .

In addition, the present invention provides a vertical structure fall prevention apparatus that is stable to the vertical structure conduction and can improve the workability.

In addition, the present invention can be reused later, the assembly operation can be made even if not professional, thereby providing a vertical structure fall prevention device excellent in construction efficiency.

According to an aspect of the present invention, two steel pipes having a bolt formed at one end, a turnbuckle having a nut formed at both sides thereof to adjust the degree of insertion of the bolt of the steel pipe by a rotation operation, and coupled to the other end of the steel pipe, There is provided a vertical structure fall prevention apparatus including two clamps for fixing the steel pipe to the shear reinforcing bar on the vertical structure.

The clamp may include a fixed body for inserting the shear reinforcement therein, and a screw for coupling the fixed body to the fixed body and fixing the fixed body to the shear reinforcement or the fixed anchor by a rotation operation.

The steel pipe may be a general structural steel pipe.

The vertical structure is a girder (girder) is installed in the coping of the bridge, the clamp may be fixed to the steel pipe to a fixed anchor installed in the shear reinforcement or the coping of the bridge.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims and detailed description of the invention.

The vertical structure fall prevention apparatus according to the present invention can be extended and applied to various vertical structure intervals by using a turnbuckle, and is fastened and fastened between the vertical structures easily and quickly, thereby preventing the fall of the vertical structure. .

In addition, it is possible to improve stability and workability with respect to vertical structure conduction.

In addition, the vertical structure fall prevention device can be reused later, the assembly work can be made even if you are not an expert, the construction efficiency is excellent.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

Hereinafter, for convenience of description and understanding of the invention, it will be described on the assumption that the structure in which the vertical structure fall prevention apparatus 100 is installed is a girder which is a bridge structure of the girder bridge. However, in addition to the girder, it should be understood that the vertical structure fall prevention apparatus 100 according to the embodiment of the present invention is applicable to a vertical structure in which a plurality of structures such as pillars, walls, beams, and the like are to be vertically spaced apart by a predetermined interval. something to do.

Figure 3 is a view showing a vertical structure fall prevention apparatus according to an embodiment of the present invention, Figure 4 is a vertical structure fall prevention apparatus is installed in accordance with an embodiment of the present invention to prevent the fall of the vertical structure It is a perspective view shown.

The vertical structure fall prevention apparatus 100 includes two clamps 130a and 130b, two steel pipes 120a and 120b, and a turnbuckle 110.

Each steel pipe (120a, 120b) is a bolt of a predetermined length is formed at one end and the clamp (130a, 130b) is fixedly coupled to the other end. Steel pipes (120a, 120b) may be a general steel pipe, vertical structure spacing, vertical in the structure (for example, bridge structure of girder bridge, etc.) is installed, a plurality of vertical structure to be installed vertical structure fall prevention device 100 It may have various lengths and diameters depending on the weight of the structure.

Compared to using a conventional stranded steel, in the embodiment of the present invention by using the steel pipe (120a, 120b) to maintain its shape not only a predetermined size of tension applied to both ends of the steel pipe (120a, 120b) but also a pressure of a predetermined size By preventing the fall of the girder 20 or the change of the position of the girder 20. That is, in the case of the stranded wire, it is possible to maintain the shape under tension, but it is difficult to maintain the shape under pressure in the embodiment of the present invention has overcome the advantage by using the steel pipe (120a, 120b).

The clamps 130a and 130b include fixing bodies 132a and 132b and tightening screws 134a and 134b.

The fixed bodies 132a and 132b are C-shaped with one side open, and the fixed anchor 15 installed in the shear reinforcement 25 or the coping 10 at the top of the girder 20 through the one open side can be inserted therein. Can be. The fixed bodies 132a and 132b and the tightening screws 134a and 134b are screwed together, and the shear bars 25 or fixedly inserted into the fixed bodies 132a and 132b by rotating the tightening screws 134a and 134b. The clamps 130a and 130b are fixedly coupled to the anchor 15. A fixing plate may be formed at one end of the tightening screws 134a and 134b to increase the frictional force so that the clamps 130a and 130b are firmly fixed to the shear bar 25 or the fixing anchor 15.

By using the clamps 130a and 130b, the girders can be fixed simply and quickly to prevent the conduction of the girders.

The turnbuckle 110 is formed at both ends in the longitudinal direction of a nut for inserting the bolts 122a and 122b formed at one end of the steel pipes 120a and 120b into the body. It is possible to adjust the degree to which the bolts 122a and 122b of the steel pipes 120a and 120b are inserted into the body by the rotation operation of the turnbuckle 110.

Two steel pipes 120a and 120b are coupled to both sides around the turnbuckle 110. The two steel pipes 120a and 120b coupled to one turnbuckle 110 may have the same length or different from each other if necessary. If the length is the same, there is an effect of reducing the cost of using the same mold in the manufacturing process of the steel pipe (120a, 120b).

By varying the stretch range by the rotation operation of the turnbuckle 110, the distance between neighboring girders on which the vertical structure fall prevention apparatus 100 is mounted does not have to be constant, thereby applying the girder spacing in the girder structure. The effect is to enlarge the castle.

In addition, the length of the steel pipe (120a, 120b), the length of the turnbuckle 110 can also be variously applied according to the distance between the girders, fine spacing adjustment is completed by the rotation operation of the turnbuckle (110).

Referring to FIG. 4, the vertical structure fall prevention apparatus 100 illustrated in FIG. 3 is installed. By using the clamps 130a and 130b on the shear reinforcing bar 25 on the upper part of the neighboring girder 20, the vertical structure fall prevention apparatus 100 is fixed, and the girder spacing is maintained by using the turnbuckle 110. By installing a plurality of the vertical structure fall prevention device 100 between the plurality of girders 20 it is possible to prevent the fall of the girder 20 by the external force or to prevent the position change.

4 shows a case where the outermost girder 20 has a fixed anchor 15 installed in the coping 10 and a shear reinforcement upper part of the girder 20 using the twisted wire 30 and the turnbuckle 35 as in the related art. 25) is shown as connecting.

However, in some cases, even in the case of the girder 20 located at the outermost side by using the vertical structure fall prevention apparatus 100 according to the embodiment of the present invention, one end of the clamps 130a and 130b may be disposed on the upper side of the girder 20. It is fixed to the shear reinforcement 25 and the other ends of the clamp (130a, 130b) by fixing to the fixed anchor 15 installed in the coping 10 can be prevented from falling of the girder 20 located in the outermost.

Although the above description has been made on the assumption that the turnbuckle is formed only of the body, the shape of the steel pipe may vary according to the shape of the turnbuckle.

In another embodiment, the turnbuckle may have a nut body and left and right bolts. The left and right bolts can be inserted into the nut body. Rotating the nut body can adjust the degree of insertion of the left and right bolts into the nut body, thereby having an effect applicable to various vertical structure intervals.

The other end of the left and right bolts other than one end inserted into the nut body is connected to the steel pipe and can be fastened to the steel pipe in various ways depending on the shape. If the shape is a rod-shaped can be fastened to the steel pipe by welding, or if the shape is a ring shape can be fastened by a ring coupling in the form of a plurality of rings are connected to each other.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

1 and 2 are a schematic perspective view and a front view showing a state of supporting the conventional girder.

3 is a view showing a vertical structure fall prevention apparatus according to an embodiment of the present invention.

Figure 4 is a perspective view showing a state in which the vertical structure fall prevention device is installed in accordance with an embodiment of the present invention to prevent the fall of the vertical structure.

≪ Description of reference numerals &

10: Coping 15: Fixed Anchor

20: girder 25: shear rebar

30: strand 35: turnbuckle

40: fall prevention bar 50: cross girder

100: vertical structure fall prevention device

110: turnbuckle

120a, 120b: steel pipe 122a, 122b: bolt

130a, 130b: clamp 132a, 132b: fixed body

134a, 134b: Tightening screw

Claims (4)

Two steel pipes bolted at one end, A turnbuckle in which nuts are formed at both sides to adjust the degree of insertion of the bolt of the steel pipe by a rotation operation; and It is coupled to the other end of the steel pipe, vertical structure fall prevention device including two clamps for fixing the steel pipe to the shear reinforcement of the upper vertical structure. The method of claim 1, wherein the clamp, The fixed body for inserting the shear reinforcement therein, and the vertical structure fall prevention device comprising a fastening screw for screwing the fixed body and the fixed body is fixed to the shear reinforcement by the rotation operation. The method of claim 1, The steel pipe is a vertical structure fall prevention device, characterized in that the general structural steel pipe. The method of claim 1, The vertical structure is a girder installed in the coping of the bridge, The clamp is a vertical structure fall prevention device, characterized in that for fixing the steel pipe to a fixed anchor installed on the shear reinforcement or coping of the bridge.

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