KR101869262B1 - Steel pipe strut with connection member - Google Patents

Abstract

The present invention relates to a hollow steel pipe having a length longer than a width thereof; And an engaging member coupled to both ends of the steel pipe and used for joining with other members such as struts, jacks, wales, sidewalls, or intermediate piles which are adjacent to each other, A connecting plate coupled to the end; And a plurality of support bars which are coupled to the inside of the connection plate and inserted and inserted into a cutout groove formed at an end of the steel pipe, wherein the connection plate includes a plurality of coupling parts for engagement with the adjacent other members The steel pipe strut is provided with an engaging member.
The present invention can provide a steel pipe having a hollow pipe having a length longer than the width and an engaging member engaged with each of both side ends of the steel pipe to provide a steel pipe having excellent bonding strength and stably supporting the axial load, Stable and easily coupled with various other members such as a wale, a sidewall, a middle pile, and the like, and is easily coupled with other members in different directions, and can provide an effect of quickly and easily adjusting the angle of engagement thereof .

Description

Technical Field [0001] The present invention relates to a steel pipe strut with a connection member,

The present embodiment relates to a steel pipe strut with a joining member. The present invention relates to a steel pipe strut which supports earth pressure by installing earth retaining walls to prevent collapse of the excavation surface after excavation of the ground and installing it between the earth retaining walls. Also, this embodiment can be applied to various structures supporting a load by using a steel pipe such as a temporary vent of a temporary bridge other than a steel pipe sprocket supporting a earth pressure.

In general, in case of excavation of the ground, it is necessary to construct the earth retaining wall to prevent the collapse of the excavation surface, to install the wrist band horizontally on the wall of the earth retaining wall and then to install the strut directly on the wale, or to install the jack first, To support the earth pressure.

In the past, H-shaped steel was mainly used as the strut, but in recent years, circular steel pipes, square steel pipes, etc. have been widely used due to the superiority of shaft stiffness and the like.

However, in the case of a round steel pipe or a square steel pipe, there is a problem that the connection with the adjacent member is not easy due to the closed end face. That is, it is not easy to access the inner space for coupling with the adjacent member, and is welded or bolted to the outside of the steel pipe, or welded or bolted after adding a separate member. However, the bonding is still not easy and it is difficult to secure a sufficient bonding strength even if bonding is performed.

Further, when the steel pipe and the steel pipe are butted against each other, there is a problem that sufficient axial force is difficult to be exhibited because the axial force is applied in the state where the thin end portions are in contact with each other. That is, when the opposing steel tubes are shifted or inclined in a state in which the axial force is applied, the stress concentrates on a specific portion, local breakage may occur in this portion, and further, the strut itself may collapse.

Therefore, techniques for solving the above problems are being developed.

For example, Korean Patent Laid-Open No. 10-2014-0145472 discloses a "method of joining steel pipes" (see FIGS. 5A to 5C). In this conventional art, a coupling plate preparing step of preparing a coupling plate 110 having a plurality of fastening holes 111; A coupling plate coupling step of coupling the coupling plate 110 to an end portion of the double-sided steel pipe 100 to be coupled; A step for forming a twisted portion 120 in each of the side steel pipes 100; A fastener coupling step of fastening the fastener 200 to the fastener 111 of the coupling plate 110 of the double-sided steel pipe 100 through the twisting part 120; And closing the twisted portion 120 of the double-sided steel pipe 100. [

However, in the case of the related art, the joint plate 110 is welded along the circumferential direction of the steel pipe 100 to weaken the joint between the joint plate 110 and the steel pipe 100, There is a problem that breakage occurs at the bonding site. Further, the strength of the steel pipe is damaged due to the twisting portion 120 formed in the steel pipe 100, so that a sufficient supporting force can not be secured. Also, it is not easy to connect the steel pipe 100 to another member in a straight line direction using the coupling plate 110, but to connect the steel pipe 100 to another member in an oblique direction.

Patent 1: Korean Patent Publication No. 10-2014-0145472

In order to solve the above-mentioned problems, the present invention includes a hollow steel pipe having a length longer than the width, and a joining member and an auxiliary joining member which are engaged with the steel pipe, And is provided with a joining member capable of fast, rigid, and stable joining with various other members such as struts, jacks, wales, sidewalls, intermediate piles, etc., I want to provide a stratum.

A steel pipe strut with an engaging member according to an exemplary embodiment of the present invention includes: a hollow steel pipe having a length longer than a width; And an engaging member coupled to both ends of the steel pipe and used for joining with other members such as struts, jacks, wales, sidewalls, or intermediate piles which are adjacent to each other, A connecting plate coupled to the end; And a plurality of support bars which are coupled to the inside of the connection plate and inserted and inserted into a cutout groove formed at an end of the steel pipe, wherein the connection plate includes a plurality of coupling parts for engagement with the adjacent other members And a sphere is formed.

The plurality of supporting bars intersect each other at the center of the connecting plate.

The plurality of support bars may be three or four, and each of the support bars may intersect with the other two at a point other than the center of the connection plate and form a regular polygon at the center.

The plurality of coupling holes are formed in the rim of the steel pipe, a coupling hole communicating with the inside of the steel pipe is formed near the end of the steel pipe, a reinforcing ring is coupled to the rim of the coupling hole, And the bolt can be fastened to the sphere.

The cover may further comprise a cover for sealing the coupling hole, and the cover may be formed of steel, rubber, or plastic.

The lid may be a circular steel having a rim formed on its rim and may be screwed to a screw formed on the inner side of the reinforcing ring to thereby seal the fastening hole and to reinforce the fastening hole And the ring is reinforced.

The connecting plate may have a circular or rectangular shape.

In addition, all or a part of the plurality of engagement holes may be long holes.

The pull-up port may further include a nut provided on an inner side of the steel pipe, an insertion hole formed through the steel pipe, an insert pin screwed into the nut through the insertion hole, And a circular or rectangular ring coupled to the insertion pin.

The first and second connecting plates may include a second connecting plate inserted into the through hole formed through the steel pipe and protruding from both sides of the steel pipe. A hinge hole may be formed on both sides of the second connecting plate, And are combined with each other.

Further, it may further comprise an auxiliary coupling member coupled to both sides of the second connection plate,

The auxiliary coupling member may include a pair of hinge plates hinged to the second coupling plate by a hinge axis, and auxiliary coupling plates coupled to the pair of hinge plates.

The auxiliary connecting plate may have a plurality of auxiliary coupling holes.

The auxiliary steel pipe may include a plurality of auxiliary flanges radially coupled to the auxiliary connecting plate, a plurality of auxiliary cutting grooves into which the plurality of auxiliary flanges can be inserted and coupled, And a second auxiliary coupling member coupled to the end portion.

The present invention can provide a steel pipe that has a hollow pipe having a length longer than the width, and a joining member and an auxiliary joining member which are engaged with the steel pipe. The joining member has an excellent bonding strength, It is possible to provide a quick, firm and stable coupling with various other members such as jacks, wales, sidewalls, intermediate piles, and the like, as well as an effect that can be combined with other members in various directions.

Figs. 1A to 1D are a perspective view, an exploded perspective view, an enlarged view, and a connection view showing a case of a round steel plate and a circular connecting plate among steel tube brackets according to an example of the present invention.
FIGS. 2A to 2D are a perspective view, an exploded perspective view, an enlarged view, and a connection view showing the case of a round steel pipe and a rectangular connecting plate among the steel pipe struts according to an example of the present invention.
FIGS. 3A to 3D are a perspective view, an exploded perspective view, an enlarged view, and a connection view showing a square steel pipe and a rectangular connecting plate in a steel pipe strut according to an example of the present invention.
4A to 4E are a perspective view, an exploded perspective view, an enlarged view, and a connection view showing a state in which a steel pipe brace according to an embodiment of the present invention is provided with a second connecting plate and an auxiliary coupling member.
5 is a view showing a steel pipe provided with a joining member according to the prior art.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a structure of a steel pipe strut with a joining member according to an example of the present invention will be described in detail with reference to the drawings. This embodiment can be applied to various structures supporting a load by using a steel pipe such as a temporary vent of a temporary bridge other than a steel pipe sprocket supporting a earth pressure. For the sake of convenience of explanation, the following description will be given assuming a steel pipe strut supporting the earth pressure.

1 to 3, a steel pipe strut with an engaging member according to an exemplary embodiment of the present invention (hereinafter referred to as a strut boat for convenience) comprises a steel pipe 10, And can be easily and quickly combined with other adjacent members with bolts or the like by using the coupling member 20. [ Here, the other member means an adjacent strut, jack, wale, side wall, intermediate pile, and so on, and so on. Hereinafter, the inside means the side near the center of the steel pipe 10, and the outside means the opposite side.

The steel pipe 10 has a hollow shape having a length longer than the width, and its cross section can be formed into a circular shape or a square shape. Such a steel pipe 10 is superior in bending stiffness to H-shaped steel which has been conventionally used as a strut, and can be very useful as a strand. The steel pipe 10 of the present invention can be produced simply, quickly, and economically since it can be used as it is without having to produce it separately, and can use the existing standardized and produced steel pipe 10, such as a round steel pipe and a square steel pipe.

The joining member 20 is used for joining with another adjacent member and includes a connecting plate 21 coupled to the end of the steel pipe 10 by welding or the like, And a plurality of support bars 23 coupled to each other.

The connecting plate 21 is joined to the end of the steel pipe 10 by welding or the like and the strut bracket can be easily coupled with another member adjacent to the connecting plate 21 by a bolt or the like. The connecting plate 21 having a large area is brought into contact with the connecting plate 21 rather than the thin end of the steel pipe 10 when the strut is connected with another member adjacent thereto so that the end portion of the steel pipe 10, It is possible to prevent breakage and collapse of the strut.

The connecting plate 21 may be formed in a circular shape, a square shape, or the like. If the shape of the steel pipe 10 is a rectangular shape or the connecting plate 21 is a rectangular shape, it is prevented that the strut is rolled at the time of storage, and safety can be secured. Further, since the connecting plate 21 is integrally joined to the steel pipe 10 by welding or the like, there is no fear that the engaging member 20 is lost, and storage and transportation are easy.

The connection plate 21 is provided with a plurality of through holes 24, which can be quickly and easily engaged with other adjacent members with bolts or the like.

All or a part of the plurality of coupling holes 24 may be formed as elongated slots. The elongated hole can be easily coupled to other members regardless of the type and shape of other members, the manufacturing error of the coupling member 24, and the construction error of the strut and other members.

A plurality of supporting bars 23 are coupled to the inside of the connecting plate 21 by welding or the like and at the same time the plurality of supporting bars 23 are inserted into a plurality of cutting grooves formed at the end of the steel pipe 10, Lt; / RTI > The support bar 23 is coupled to the connection plate 21 to increase the flexural rigidity of the connection plate 21 and consequently to increase the rigidity of the connection member 20. [ The plurality of support bars 23 are welded to the steel pipe 10 in a very wide range after being inserted into the incision grooves of the steel pipe 10 and welded to the steel pipe 10 in the entire range of the incision grooves, So that the member 20 is firmly coupled to the steel pipe 10. [ In addition, since the axial load transmitted to the steel pipe 10 through the connecting plate 21 and the support bar 23 is accommodated in the entire cutout groove, the axial load can be supported very stably.

That is, the support bar 23 is joined to the inside of the connection plate 21 by welding or the like and the connection plate 21 is welded to the steel pipe 10 and the support bar 23 is connected to the steel pipe 10, The joining member 20 is firmly engaged with the steel pipe 10 and at the same time the rigidity of the end of the steel pipe 10 can be increased. As a result, the strut can be firmly engaged with another adjacent member, and the axial load and the flexural load acting on the strut can be stably supported.

The plurality of supporting bars 23 may be arranged to intersect each other at the center of the connecting plate 21 or may intersect at a point other than the center of the connecting plate 21. When the plurality of supporting bars 23 intersect at points other than the center of the connecting plate 21, it is preferable that the plurality of supporting bars 23 form a regular polygon at the center. In this case, the supporting bar 23 is closer to the coupling hole 24, so that the connecting plate 21 can be supported more stably.

A fastening hole (30) communicating with the inside of the steel pipe (10) can be formed near the end of the steel pipe (10). By fastening a bolt or the like to the coupling hole 24 of the coupling plate 21 by using the coupling hole 30, the strut can be easily coupled with another adjacent member.

The reinforcing ring 31 may be further joined to the rim of the fastening hole 30 by welding or the like in order to compensate for the damage of the fastening hole 30 due to the fastening hole 30. When the second connection plate 40 is provided as described later, it is preferable that the fastening holes 30 are formed in two upper and lower portions.

The fastening hole 30 may further include a lid 33 for sealing the fastening hole 30. The lid 33 prevents rainwater, foreign matter, and the like from entering the inside of the steel pipe 10 through the fastening hole 30, thereby preventing corrosion of the steel pipe 10. The lid 33 can be fitted or fastened to the reinforcing ring 31, and can be formed of steel, rubber, plastic or the like. When the lid 33 is formed of rubber or plastic, the lid 33 can be easily inserted into the fastening hole 30 and coupled. Further, when the lid 33 is made of a steel material, there is a further advantage that the strength of the fastening hole 30 can be reinforced.

Particularly, the lid 33 can be formed of a circular steel material having a thread on its rim. In this case, a screw is also formed inside the reinforcing ring 31, and the lid 33 is screwed to the reinforcing ring 31 so that the lid 33 closes the reinforcing ring 31, The strength reduction due to the fastening holes 30 can be completely eliminated.

Referring to FIG. 4, the strut may further include a second connecting plate 40 crossing the steel pipe 10. That is, a through-hole penetrating through the steel pipe 10, that is, a through-hole penetrating the steel pipe 10 in the radial direction (transverse direction) is formed and the second connection plate 40 is inserted into the through- And then welded together. The second connection plate 40 may have a hinge hole 41 on both sides of which the other members can be coupled. The position of the second connection plate 40 may be spaced apart from the end or the end of the steel pipe 10 in accordance with the purpose of use of the strut.

The hinge holes (41) on both sides of the second connection plate (40) can support the strut in the oblique direction from both sides, so that the axial force of the strut can be widely dispersed and supported. Further, by using the hinge hole 41, the strut can be supported in the radial direction of the steel pipe 10, that is, in the transverse direction, thereby supporting the strut in the lateral direction and preventing buckling.

Referring to FIG. 4D, the strut may further include an auxiliary coupling member 50, which is coupled to both sides of the second connection plate 40, respectively. The auxiliary coupling member 50 includes a pair of hinge plates 51 hinged to the second coupling plate 40 by a hinge axis and auxiliary connecting plates 53). In addition, a plurality of auxiliary coupling holes 54 are formed in the auxiliary connection plate 53 and can be quickly coupled to the adjacent other members with bolts or the like. Part or all of the auxiliary coupling hole 54 may be formed as a long hole.

4E, a plurality of auxiliary flanges 56 coupled in the radial direction are integrally coupled to the auxiliary connecting plate 53 by welding or the like, and the plurality of auxiliary flanges 56 may be inserted and coupled And a second auxiliary coupling member 60 coupled to the other end of the auxiliary steel pipe 57. The auxiliary steel pipe 57 may be formed of a plurality of auxiliary incision grooves formed in a circumferential direction. Therefore, the axial force of the steel pipe 10 can be enlarged and easily supported, or the steel pipe 10 can be supported in the lateral direction in a state where the steel pipe 10 and the auxiliary steel pipe 57 are integrally joined.

In addition, pulling openings 70 may be provided near both ends of the steel pipe 10 to facilitate the pulling operation of the steel pipe 10. [ The pull-up port 70 includes a nut 71 provided inside the steel pipe 10, an insertion port 73 formed through the steel pipe 10, And a circular or rectangular ring 76 that is coupled to the pin 74. The pin 76 may be a metal or a metal. Therefore, the pull-up port 70 can be removed if it is not needed, or it can be easily installed if necessary.

The pull-up port 70 may be configured without the nut 71 or without both the nut 71 and the inserting pin 74. That is, the pull-up port 70 may be formed of only the ring 76 and joined to the outside of the steel pipe 10 by welding or the like. Further, the pull-up port 70 may be rotatably coupled to the steel pipe 10 so as to be folded when not in use.

When the fastening hole 30 is provided at the end of the steel pipe 10, it is preferable that the pulling mouth 70 is provided near the end of the steel pipe 10 and near the fastening hole 30. In this case, since the pulling-up operation of the pulling-up mouth 70 can be facilitated through the fastening hole 30, the pulling-up mouth 70 can be easily installed only when necessary. That is, the nut 71 can be held in the steel pipe 10 through the fastening hole 30, and the ring 76 can be rotated, so that the pull-up port 70 can be easily fastened or separated.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Steel pipe
20:
21: Connection plate
23: Support bar
24:
30: fastening hole
31: reinforcing ring
33: Cover
40: second connection plate
41: Hinge ball
50: auxiliary coupling member
51: Hinge plate
53: auxiliary connection plate
54: auxiliary coupling port
56: Auxiliary flange
57: Secondary steel pipe
60: second auxiliary coupling member
70: impression hole
71: Nut
73:
74: Insertion pin
76: ring

Claims (12)

A hollow-shaped steel pipe having a length longer than the width; And
And an engaging member coupled to each of opposite ends of the steel pipe and used for joining with other members such as struts, jacks, wales, sidewalls, or intermediate piles,
The coupling member
A connecting plate coupled to an end of the steel pipe; And
And a plurality of support bars coupled to the inside of the connecting plate and inserted into and engaged with a cutout groove formed at an end of the steel pipe,
Wherein the connecting plate comprises:
A plurality of coupling holes for coupling with other adjacent members are formed,
Wherein the plurality of engagement holes are formed in the rim of the steel pipe,
Wherein a tightening hole communicating with the inside of the steel pipe is formed near the end of the steel pipe, a reinforcing ring is coupled to a rim of the fastening hole,
And the bolt can be fastened to the coupling hole through the fastening hole.
The method according to claim 1,
Wherein the plurality of support bars
Wherein the connecting plate is disposed at a center of the connecting plate and intersects with each other at a center of the connecting plate.
The method according to claim 1,
Wherein the plurality of support bars
Wherein each of the support bars intersects the other two at a point other than the center of the connection plate and forms a regular polygon at the center of the support plate.
delete The method according to claim 1,
And a lid for sealing the fastening hole,
Wherein the lid is formed of steel, rubber, or plastic.
The method according to claim 1,
And a lid for sealing the fastening hole,
Wherein the lid is a circular steel having a thread formed on a rim and is screwed to a screw formed on the inner side of the reinforcing ring to thereby seal the fastening hole and to reinforce the reinforcing ring. Strap.
The method according to claim 1,
Wherein all or a part of the plurality of engagement holes is a long hole.
The method according to claim 1,
Further comprising a pull-up port provided near an end of the steel pipe,
The pull-up port includes a nut provided on the inner side of the steel pipe, an insertion port formed through the steel pipe, an insertion pin screwed into the nut through the insertion port, and a circular or rectangular ring coupled to the insertion pin Wherein the coupling member is provided with a coupling member.
A hollow-shaped steel pipe having a length longer than the width; And
And an engaging member coupled to each of opposite ends of the steel pipe and used for joining with other members such as struts, jacks, wales, sidewalls, or intermediate piles,
The coupling member
A connecting plate coupled to an end of the steel pipe; And
And a plurality of support bars coupled to the inside of the connecting plate and inserted into and engaged with a cutout groove formed at an end of the steel pipe,
Wherein the connecting plate comprises:
A plurality of coupling holes for coupling with other adjacent members are formed,
Further comprising a second connecting plate inserted into the through hole formed through the steel pipe and projecting to both sides of the steel pipe,
And a hinge hole is formed on both sides of the second connection plate to be hinged to the other member.
The method of claim 9,
Further comprising an auxiliary coupling member coupled to both sides of the second connection plate,
Wherein the auxiliary coupling member comprises:
A pair of hinge plates hinged to the second connecting plate by a hinge axis, and auxiliary connecting plates coupled to the pair of hinge plates.
The method of claim 10,
And a plurality of auxiliary coupling holes are formed in the auxiliary connection plate.
The method of claim 10,
A plurality of auxiliary flanges coupled to the auxiliary connection plate in a radial direction, a plurality of auxiliary cutout grooves into which the plurality of auxiliary flanges can be inserted and coupled, the auxiliary steel pipes being coupled in a circumferential direction, And a second auxiliary coupling member coupled to the first auxiliary coupling member.

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