KR20180078782A - Steel pipe strut with 2 way connection member - Google Patents

Abstract

The present invention relates to a steel pipe strut having a two-way connection member. The steel pipe strut includes: an elongated hollow steel pipe; and a two-way connection member coupled to an end portion of the steel pipe to be coupled to first and second members in different directions. The two-way connection member includes: a plurality of flanges fitted to a plurality of slits provided in the end portion of the steel pipe to be spaced apart from each other; a first connecting plate coupled to outer portions of the plurality of flanges, and being configured to be coupled to the first member; and a second connecting plate coupled to outer portions of the plurality of flanges, and being configured to be coupled to the second member. The first and second connecting plates are coupled to each other, and are provided with a plurality of coupling-holes, through which the first and second connecting plates are coupled to the first and second members. Due to the first and second connecting plates, the steel pipe strut can be coupled in two different directions. According to the present invention, since the elongated hollow steel pipe and the two-way connection member coupled to an end portion of the steel pipe to be coupled to first and second members in different directions are provided, superior coupling strength between the steel pipe and the two-way connection member is provided, and no damage is caused to coupling portions. In addition, a variety of first and second members are easily coupled in two different directions to reliably support an axial load in a wider range, and angles, at which the first and second members are coupled, are quickly and simply adjusted.

Description

TECHNICAL FIELD [0001] The present invention relates to a steel pipe strut with a two-way connection member,

The present embodiment relates to a steel pipe strut with a two-way joining member, and particularly to a steel pipe strut with a two-way joining member that can be engaged with first and second members in different directions.

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, the H-shaped steel was mainly used as the strut, but in recent years, round steel pipes and square steel pipes have been widely used due to excellent axial stiffness and excellent bending stiffness.

However, in the case of a round steel pipe or a square steel pipe, there is a problem in that it is not easy to join with the adjacent member 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, bonding is still not easy, and even if bonding is performed, it is difficult to secure sufficient bonding strength.

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, stress is concentrated at a specific portion, local breakage occurs at this portion, and further, the strand itself may collapse.

In addition, when the steel pipe is combined with two or more members in order to widely disperse the axial force of the steel pipe, there is a great difficulty in the joining method.

Techniques for solving the above problems are being developed.

For example, Korean Patent No. 10-0698878 discloses "a wye-type connection structure of a steel pipe strut" (see Fig. 6). In this conventional art, two steel tube struts 100a and 100b are installed on both side wales so as to distribute and transmit the force to the wrist straps. A large steel pipe strut 220 positioned at a predetermined distance from the inside of the both side straps; A connecting member 300 positioned between the two steel pipe struts and the large steel pipe strut and connected to the two steel pipe struts and the large steel pipe strut, and a connecting member 300 connected to the two steel pipe struts and the large steel pipe strut, respectively, And a base plate (400) fastened to the connecting body. At this time, the connecting body connecting the two steel pipe struts and the large steel pipe strut is formed of three sides, one side of which is wider than the other side, and a large steel pipe strut is connected and the other side is connected with two steel pipe struts. The connecting body is manufactured by arranging the reinforcing bars and embedding the anchor bolts, then curing the concrete by pouring the concrete. The connecting body is joined to the steel pipe strut by fitting the end of the anchor bolt into the hole of the base plate bonded to the end of the steel pipe strut.

However, in the case of the conventional art, since the connector 300 is manufactured by placing the reinforced concrete and then placing the concrete 310, the manufacturing is complicated and the weight is increased.

In addition, since the connector 300 is manufactured in accordance with the size, shape, and coupling direction of the two steel pipe struts 100a and 100b and the large steel pipe strut 220 to be installed, And it is impossible to recycle.

The two steel pipe struts 100a and 100b and the large steel pipe strut 220 can be coupled only at an angle determined by the connecting body 300 so that errors such as design, impossible.

Since the base plate 400 is welded to the ends of the two steel pipe strands 100a and 100b and the large steel pipe strut 220 along the circumferential direction, it is difficult to carry and the cost increases because all the structures must be moved together There is a problem.

Korean Patent No. 10-0962553 discloses a " support device for civil engineering and construction "(see Figs. 7A and 7B). This conventional art includes a strut 110 supporting a structure and a structure vertically or horizontally and having a hollow portion on both sides thereof; A side strut 120 connected to the side of the strut and supporting the structure; A rotation supporting means 130 connected between the side strut and the strut to adjust the angle of the side strut about the strut; And a connecting member (180) connected to one side of the pivot support means and coupled to the hollow portion of the strut brace; The connecting member includes a supporting piece 182 which is in contact with the inner surface of the hollow portion of the strut bracket; And a bending piece (184) formed integrally with the support piece and coupled with the rotation support means; And a reinforcement piece 186 connected to the support piece and the center of the bent piece vertically to reinforce the reinforcement piece.

However, since the side strut 120 is coupled to the side of the strut 110, in order to obtain a firm coupling between the side strut 120 and the strut 110, the coupling structure is complicated and much effort is required .

In addition, the conventional art has a problem in that it can be applied only when the strut 110 is an H-shaped steel.

Patent 1: Korean Patent No. 10-0698878 Patent 2: Korean Patent No. 10-0962553

In order to solve the above-mentioned problems, the present invention provides a hollow steel pipe having a length longer than a width, and a pipe connected to one end of the steel pipe and used for joining with the first and second members in different directions By including the two-way joining member, it is possible to provide a joining member that is excellent in bonding strength between the steel pipe and the two-way joining member, does not cause breakage at the joining portion, and easily joins the first and second members in different directions, And a bi-directional engaging member capable of supporting the first and second members in a stable range and easily adjusting the angle at which the first and second members are coupled.

The two ends of the two-way coupling members may be joined to each other at the other end, or a plurality of different coupling members may be coupled to each other so that the first and second members are coupled to each other at one side, And a two-way joining member capable of joining the first and second members, or the joining member in the same direction as the steel pipe on the other side.

The steel pipe strut with the two-way joining member according to an example of the present invention includes: a hollow steel pipe having a length longer than the width; And a bi-directional engaging member coupled to one end of the steel pipe and used for engaging with the first and second members in different directions, wherein the bi-directional engaging member is provided at one end of the steel pipe A plurality of flanges inserted and joined to a plurality of cutout grooves formed to be spaced apart from each other; A first connection plate coupled to the outside of the plurality of flanges and for coupling with the first member; And a second connecting plate for coupling with the second member while being coupled to the outside of the plurality of flanges, wherein the first connecting plate and the second connecting plate are disposed in different directions, And a plurality of coupling holes for coupling with the first and second members are formed so that the first and second members having different directions can be coupled.

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

The two-way engagement member may further include an orthogonal flange formed at one end of the steel pipe and coupled to a cutout groove formed in a direction perpendicular to the plurality of cutout grooves, And are combined with each other.

The apparatus may further include an auxiliary coupling member coupled to the outer sides of the first connection plate and the second connection plate and used for coupling with the first and second members.

The auxiliary coupling member may include a joint plate, which is bolted or riveted to the outer surface of the first connection plate and the second connection plate, respectively; And a vertical plate coupled perpendicularly to the joining plate, wherein the vertical plate is formed with a bolt or a hole for riveting.

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.

Further, the apparatus may further include the two-way coupling member coupled to the other end of the steel pipe.

The first joint member may include a first flange coupled to the steel pipe, a second flange spaced apart from the first flange, and a second flange coupled to the other end of the steel pipe, An H-shaped steel including a web connecting the first flange and the second flange; And a first reinforcing web and a second reinforcing web provided on one side and the other side of the web, the first reinforcing web and the second reinforcing web being coupled between a first flange and a second flange of the H-shaped steel, And a plurality of coupling holes are formed in the coupling hole.

The second joint member may include a pair of first and second cutouts formed at the other end of the steel pipe and spaced apart from each other (a first cutout groove and a second cutout cutout) An H-shaped steel comprising a first flange and a second flange, respectively, inserted and joined to the cutout groove, and a web connecting the first flange and the second flange; And a coupling plate coupled to an outer end of the first flange and the second flange of the H-shaped steel, wherein the coupling plate has a plurality of coupling holes for coupling with other members.

The third joint member may include a plurality of flanges inserted into and coupled to a plurality of cutout grooves formed along a circumferential direction of the steel pipe, wherein the third joint member is coupled to the other end of the steel pipe. And a coupling plate coupled to an outer end of the plurality of flanges, wherein the coupling plate has a plurality of coupling holes for coupling with other members.

The fourth joint member may further include a connecting plate coupled to the other end of the steel pipe, And a plurality of flanges coupled to an inner side of the connecting plate and inserted into a cutout groove formed at the other end of the steel pipe, wherein the connecting plate has a plurality of engaging holes for engaging with other members . ≪ / RTI >

The present invention can be embodied by a two-way joining member which is used for the purpose of joining to one side end of the steel pipe and the first and second members in different directions The joint strength between the steel pipe and the two-way joining member is excellent, no breakage occurs in the joining region, and the first and second members in different directions are easily combined to stably support the axial load in a wider range , And the angle at which the first and second members are coupled can be easily adjusted.

The two ends of the two-way coupling members may be joined to each other at the other end, or a plurality of different coupling members may be coupled to each other so that the first and second members are coupled to each other at one side, It is possible to combine the first and second members, or to provide the effect that the other side can be combined with the strut, jack or the like in the same direction as the steel pipe.

1A to 1D are a perspective view, an exploded perspective view, and an installation view and an installation view of a steel tube sprocket having a two-way engagement member according to an example of the present invention.
FIGS. 2A to 2C are views showing a first coupling member provided at the other end of a steel tube sprocket having a two-way coupling member according to an example of the present invention.
FIGS. 3A and 3B are views showing a second coupling member provided at the other end of a steel pipe brace provided with a two-way coupling member according to an example of the present invention.
FIGS. 4A to 4C are views showing a state where a third joining member is provided at the other end of a steel pipe strut with a two-way joining member according to an example of the present invention.
FIGS. 5A to 5C are views showing a fourth joining member provided at the other end of a steel pipe brace comprising a two-way joining member according to an example of the present invention.
Figures 6 and 7 are diagrams for 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 two-way coupling member according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings.

1, a steel pipe strut with a two-way joining member according to an exemplary embodiment of the present invention (hereinafter referred to as a strut boat for convenience) comprises a steel pipe 10, Directional engaging member 20 to be engaged. The two-way coupling member 20 can easily and quickly couple the first and second members 1 and 3 in different directions with a bolt or the like. Hereinafter, the inside refers to the side closer to the center of the steel pipe 10, and the outside refers to the opposite side of the inside.

The steel pipe 10 of this embodiment 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 is superior in bending stiffness to H-shaped steel which has been conventionally used as a strut, and can be used very effectively as a strand. The steel pipe of the present embodiment can be used as it is without any need to be manufactured separately, so that the conventional steel pipe, that is, the round steel pipe, the square steel pipe, and the like can be used as it is, so that the strut can be manufactured easily, quickly and economically.

The two-way coupling member 20 includes a plurality of flanges that are inserted into and coupled to a plurality of cutout grooves spaced from each other at one end of the steel pipe 10 and welded to the outer side of the plurality of flanges, A first connection plate 22 for coupling with the first member 1 and a second connection plate 24 for coupling the second member 3 while being welded to the outside of the plurality of flanges.

The plurality of flanges are respectively inserted into a plurality of cutting grooves formed at one side of the steel pipe 10 and welded to the steel pipe 10 in the entire range of the welded joint, Can be combined. In addition, since the load transmitted to the steel pipe 10 through the flange is accommodated in the entire cutout groove, the load can be supported very stably.

The first and second connecting plates 22 and 24 are welded to and bonded to the outer sides of the plurality of flanges so that the rigidity of the two-way connecting member 20 can be greatly increased.

The first and second connection plates 22 and 24 are coupled to each other in different directions, that is, they are bent and coupled to each other like a letter shape, so that the first and second connection plates 22 and 24 can simultaneously support the first and second members 1 and 3 in different directions . That is, the strut of the present embodiment can stably support a large axial load by connecting the first and second members 1 and 3 in two different directions to disperse the axial load. Therefore, the size of the steel pipe 10 can be increased, the spacing of the strut can be increased, the number of strut bosses can be reduced, and the work space can be widened to improve the workability.

Further, the first and second connecting plates 22 and 24 may be formed with a plurality of through-holes, so that the strands can easily be joined to the adjacent first and second members 1 and 3 by bolts or the like. In this case, since the coupling can be completed only by fastening the bolts and the first and second members (1, 3) to which the strut is to be coupled, the fastening operation is quick and convenient.

The whole or a part of the plurality of coupling holes may be formed as a long hole having a long through-hole. This slot has a sprocket and first and second members 1 and 2 irrespective of the type and shape of the first and second members 1 and 3, the manufacturing error of the coupling member, and the work error of the sprocket and the first and second members 1 and 3, , 3) can be easily coupled.

Further, in order to increase the rigidity of the two-way joining member 20, an orthogonal flange 26 may be welded to one end of the steel pipe 10. The orthogonal flange 26 may be coupled to a plurality of flanges and may be coupled to an inner edge where the first and second connecting plates 22 and 24 are coupled to each other. Since the orthogonal flange 26 is connected to the plurality of flanges and the first and second connecting plates 22 and 24, the rigidity of the two-way joining member 20 can be remarkably increased. The orthogonal flanges 26 may be continuous from one side to the other, or may be formed of a pair provided only on both sides.

The one end of the steel pipe 10 may be formed with a plurality of cut-out grooves in a direction perpendicular to the plurality of cut-out grooves so that the orthogonal flange 26 can be inserted and coupled. After the orthogonal flange 26 is inserted into the cutout groove, the welded joint with the steel pipe 10 in a very wide range, that is, the welded joint with the steel pipe 10 in the entire range of the cutout groove, (10). ≪ / RTI > Also, since the axial load transmitted to the steel pipe 10 through the orthogonal flange 26 is accommodated in the entire cutout groove, the axial load can be more stably supported. Therefore, the two-way engagement member 20 supported and coupled to the steel pipe 10 in both directions by the flange is supported and engaged in the other two directions by the orthogonal flange 26, So that not only the supporting force is significantly increased but also the bonding strength of the two-way joining member 20 can be increased.

And an auxiliary coupling member 30 which is coupled to the outside of the first connection plate 22 and the second connection plate 24 and is used for coupling with the first and second members 1 and 3, .

The auxiliary coupling member 30 includes a joint plate 32 which is bolted or riveted to the outer surfaces of the first connection plate 22 and the second connection plate 24, respectively; And a vertical plate 34 coupled perpendicularly to the joining plate 32. The vertical plate 34 may be formed with a bolt or a hole for riveting. Between the joint plate 32 and the vertical plate 34, a reinforcing sheath can be further combined.

The joining plate 32 may be welded to the outer surfaces of the first connecting plate 22 and the second connecting plate 24 or may be welded to the outer surfaces of the first connecting plate 22 and the second connecting plate 24, The vertical plate 34 may be directly coupled to each of the outer surfaces of the connecting plate 24. [

One or a pair of the vertical plates 34 may be welded or the like in a direction perpendicular to the joining plate 32. A hole may be formed in the vertical plate 34 so that bolts, rivets, or the like can be inserted through the holes.

The first and second members (1, 3) coupled to the strut can be easily coupled by coupling the auxiliary coupling member (30) to the first and second connecting plates (22, 24) Lt; / RTI > Therefore, even when the mounting angles of the first and second members (1, 3) need to be adjusted due to design and construction errors, the installation angle of the strut bracket and the first and second members (1, .

On the other hand, a pulling mouth (40) can be provided near the end of the steel pipe (10) to facilitate the pulling operation of the steel pipe (10). The pull-up port 40 includes a nut provided inside the steel pipe 10, an insertion port formed through the steel pipe 10, an insert pin threaded to be coupled to the nut through the insertion port, And may include a circular or rectangular shaped ring 42 that is coupled. Thus, the pull-up port 40 can be removed or, if necessary, easily installed if not necessary.

The pull-up port 40 may be free of a nut or may be configured without both a nut and an insert pin. That is, the pull-up port 40 can be formed by only the ring 42 and can be joined to the outside of the steel pipe 10 by welding or the like. Further, the pull-up port 40 may be rotatably coupled to the steel pipe 10 so as to be folded when not in use.

Therefore, the strut bracket of the present embodiment is very excellent as a strut, because the two-way engagement member 20 is firmly coupled to the steel pipe and the steel pipe 10 receives a load transmitted through the two-way engagement member 20 in a very stable manner . In addition, the strut of the present embodiment does not cause damage to the joint portion because the thin flanges of the steel pipe 10 are not brought into contact with each other but connected by the connecting plate having a large area during the connection between the strut bosses. Further, the strut of the present embodiment has a structure in which the steel pipe and the two-way joining member 20 are joined together by welding or the like so as to integrate the two-way joining member 20 without loss of the two-way joining member 20, It is possible to ensure the safety by preventing the strut from being rolled due to the belt 20.

And the other end of the steel pipe 10 may be coupled with the same coupling member as the two-way coupling member 20. [ That is, the present embodiment can be combined with the same two-way joining member 20 on both sides.

Referring to FIG. 2, a second joint member 50 having a different shape from the two-way joint member 20 may be coupled to the other end of the steel pipe 10.

The first engagement member 50 includes a first flange 52 welded to the other side of the steel pipe 10, a second flange 54 spaced apart from the first flange 52, And a web 56 connecting the flange 52 and the second flange 54. The H- The first flange 52 may be coupled to the end of the steel pipe 10, or a groove having a size of the first flange 52 may be formed and inserted into the groove.

That is, the first joining member 50 can be manufactured robustly and quickly by cutting the conventional H-shaped steel to a required size, and the manufacturing cost can be saved. Further, since the H-shaped steel has a simple structure and an open shape, the coupling with other members can be achieved only by fastening bolts, so that fastening can be performed quickly. In addition, there is no problem of local breakage and collapse of the steel pipe 10 which may occur when the steel pipe 10 is directly butt-fitted.

In addition, a first reinforcing web and a second reinforcing web may be included to increase the bearing force between the first flange 52 and the second flange 54 of the H-shaped steel. The first reinforcing web and the second reinforcing web are provided on one side and the other side of the web 56 of the H-shaped steel and welded to the first flange 52 and the second flange 54, respectively, ). ≪ / RTI >

The first and second reinforcing webs are welded to the three sides of the first flange 52, the second flange 54 and the web 56 to thereby suppress warpage of the web 56, 52 and the second flange 54 are mutually supported, the rigidity of the first engagement member 50 can be greatly increased.

Further, the second flange 54 may be formed with a plurality of engagement holes. The plurality of coupling holes may be used as holes for fastening the bolts for coupling with other members.

The plurality of coupling holes may be formed as elongated elongated holes on one side or on the other side so that they can be easily combined regardless of the kind, shape, or manufacturing error of the other members.

Referring to FIG. 3, a second coupling member 60 having a different shape from the two-way coupling member 20 may be coupled to the other end of the steel pipe 10.

The second engaging member 60 includes a first flange 62 and a second flange 64 inserted into and coupled to a pair of cutout grooves spaced apart from each other at the other end of the steel pipe 10, And a web 66 connecting the first flange 62 and the second flange 64 to the first flange 62 and the second flange 64 of the H- As shown in FIG.

The first flange 62 and the second flange 64 are welded to the steel pipe 10 by being welded to the steel pipe 10 in a very wide range after the steel pipe 10 is inserted into the cut groove, 10). In addition, the axial load transmitted through the first flange 62 and the second flange 64 can be received in the entire cutout groove of the steel pipe 10, so that the axial load can be supported very stably.

The connecting plate 68 is welded to the first flange 62 and the second flange 64 to increase the rigidity of the first flange 62 and the second flange 64, The rigidity of the member 60 can be increased. In addition, a plurality of coupling holes are formed in the coupling plate 68 so that the coupling plate 68 can be easily coupled to other adjacent members with bolts or the like. Therefore, since the coupling of the strut bracket of this embodiment is completed only by fastening the other member to be combined with the bolt, the fastening operation is very fast and convenient.

The second engaging member 60 may further include a central flange. The center flange is inserted between the first flange 62 and the second flange 64 and inserted into the cutting groove formed in the steel pipe 10 to be welded and welded to the web 66 and the connecting plate 68 . That is, the center flange is welded to the steel pipe 10, the web 66 and the connecting plate 68 so that the first flange 62, the second flange 64, the web 66, the connecting plate 68, The rigidity of the second engagement member 60 can be remarkably increased by dividing and joining the two closed squares formed by the steel pipe 10. In addition, the center flange can stably transmit the axial load transmitted from the other member to the steel pipe 10, thereby remarkably increasing the supporting force for the axial load.

Referring to FIG. 4, a two-way coupling member 20 and a third coupling member 70 having a different shape may be welded to the other end of the steel pipe 10.

The third joint member 70 includes a plurality of flanges inserted into a plurality of cutout grooves formed along the circumferential direction of the steel pipe 10 and a connecting plate 78 coupled to an outer end of the plurality of flanges, . ≪ / RTI >

The plurality of flanges are welded to the steel pipe 10 in a very wide range after being inserted into the cut groove of the steel pipe 10, that is, welded to the steel pipe 10 in the entire range of the cut groove, 10). In addition, since the axial load transmitted to the steel pipe 10 through the flange is accommodated in the entire cutout groove, the axial load can be supported very stably. Therefore, in the strut of the present embodiment, the steel pipe 10 and the third engaging member 70 are firmly coupled, and the axial load transmitted through the third engaging member 70 can be received very stably by the steel pipe 10 It is very good as a stratum.

In addition, the strut of the present embodiment is constructed such that when connecting the strut bosses, the thin flange of the steel pipe 10, that is, not the thin cross section of the end portion of the steel pipe 10, .

The strut of the present embodiment is constructed such that the third joining member 70 is welded to the steel pipe 10 so that the third joining member 70 is not lost and is easily stored and transported, Since the strut is not rolled due to the engaging member 70, safety can be secured.

The connection plate 78 is welded to the outer ends of the plurality of flanges, and a plurality of coupling holes for coupling with other members may be formed.

Since the plurality of coupling holes are easily coupled with the adjacent other members by bolts or the like, the fastening operation can be very fast and convenient.

Further, the coupling plate 78 is combined with the plurality of flanges, thereby increasing the rigidity of the flange, thereby increasing the rigidity of the third coupling member 70.

The arrangement shape of the plurality of flanges may be formed in the radial direction or in the shape of a sperm pit.

5, a second joining member 20 and a fourth joining member 80, which are different from each other, may be welded to the other end of the steel pipe 10.

The fourth engaging member 80 is used to engage with other members and includes a connecting plate 88 welded to the other end of the steel pipe 10, And a plurality of flanges which are welded and inserted and welded to the cutout grooves formed at the other end of the steel pipe 10.

The connecting plate 88 is welded to the end of the steel pipe 10 and the strut can be easily joined to the adjacent other member by bolts or the like by the connecting plate 88. The connecting plate 88 of the large area is not in contact with the thin end of the steel pipe 10 when the strut is connected to another member adjacent to the steel pipe 10 so that the end of the steel pipe 10, It is possible to prevent breakage and collapse of the strut.

In other words, the coupling plate 88 is provided with a plurality of coupling openings, which are through holes, so that the coupling plate 88 can be quickly and easily coupled to other adjacent members with bolts or the like.

The plurality of flanges coupled to the inside of the coupling plate 88 can increase the rigidity of the fourth coupling member 80 as a result of increasing the flexural rigidity of the coupling plate 88. The plurality of flanges are inserted into the incision grooves of the steel pipe 10 and welded to the steel pipe 10 in a very wide range and welded to the steel pipe 10 in the entire range of the incision grooves, 80) to the steel pipe (10). In addition, since the axial load transmitted to the steel pipe 10 through the connecting plate 88 and the flange is accommodated in the entire cutout groove, the axial load can be supported very stably.

That is, the flange is coupled to the inside of the connecting plate 88 by welding or the like, the connecting plate 88 is welded to the steel pipe 10, and the flange is inserted into the cutout groove of the steel pipe 10, The fourth engaging member 80 can be 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.

A through hole for bolt fastening may be formed near the end of the steel pipe 10.

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.

1: first member
3: second member
10: Steel pipe
20: two-way coupling member
22: first connection plate
24: second connecting plate
26: Orthogonal flange
30: auxiliary coupling member
32:
34: Vertical plate
40: Impression hole
42: Ring
50: first coupling member
52: 1st flange
54: second flange
56: web
60: second coupling member
62: 1st flange
64: second flange
66: web
68: Connection plate
70: third coupling member
78: Connection plate
80: Fourth coupling member
88: Connection plate

Claims (11)

A hollow-shaped steel pipe having a length longer than the width; And
And a bi-directional engaging member coupled to one end of the steel pipe and used for a purpose of engaging with the first and second members in different directions,
The two-
A plurality of flanges inserted into the plurality of cutout grooves spaced apart from each other at one end of the steel pipe;
A first connection plate coupled to the outside of the plurality of flanges and for coupling with the first member; And
And a second connecting plate coupled to the outside of the plurality of flanges for coupling with the second member,
The first connection plate and the second connection plate are disposed in different directions and are coupled to each other. By forming a plurality of coupling holes for coupling with the first and second members, Wherein the two-way coupling member is capable of coupling two members.
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,
The two-
Further comprising an orthogonal flange formed at one end of the steel pipe and coupled to a cutting groove formed in a direction perpendicular to the plurality of cutting grooves,
Wherein the orthogonal flange is engaged with the plurality of flanges. ≪ RTI ID = 0.0 > 21. < / RTI >
The method according to claim 1,
Further comprising an auxiliary coupling member coupled to an outer side of the first connection plate and the second connection plate to be used for coupling with the first and second members, Steel pipe strut.
The method of claim 4,
Wherein the auxiliary coupling member comprises:
A joining plate which is bolted or riveted to the outer surfaces of the first connecting plate and the second connecting plate, respectively;
And a vertical plate coupled perpendicularly to the joining plate,
Wherein the vertical plate is provided with a bolt or an rivet-engaging 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 two-way coupling member is provided with the two-way coupling member.
7. The method according to any one of claims 1 to 6,
And the two-way coupling member is coupled to the other end of the steel pipe.
7. The method according to any one of claims 1 to 6,
And a first engaging member coupled to the other end of the steel pipe,
The first engagement member
A first flange coupled to the steel pipe, and a second flange spaced apart from the first flange,
An H-shaped steel including a web connecting the first flange and the second flange; And
And a first reinforcing web and a second reinforcing web which are coupled between the first flange and the second flange of the H-shaped steel and provided on one side and the other side of the web,
And the second flange is formed with a plurality of coupling holes for coupling with other members.
7. The method according to any one of claims 1 to 6,
And a second engagement member coupled to the other end of the steel pipe,
The second engagement member
An H-shaped steel including a first flange and a second flange inserted into and coupled to a pair of cutout grooves spaced from each other at the other end of the steel pipe, and a web connecting the first flange and the second flange; And
A connecting plate coupled to an outer end of the first flange and the second flange of the H-shaped steel;
However,
Wherein the coupling plate has a plurality of coupling holes for coupling with other members.
7. The method according to any one of claims 1 to 6,
And a third engagement member coupled to the other end of the steel pipe,
The third engagement member
And is inserted and joined to a plurality of cut-away grooves formed along the circumferential direction of the steel pipe
A plurality of flanges; And
And a connecting plate coupled to an outer end of the plurality of flanges,
Wherein the coupling plate is formed with a plurality of coupling holes for coupling with other members.
7. The method according to any one of claims 1 to 6,
And a fourth engagement member coupled to the other end of the steel pipe,
Wherein the fourth engaging member
A connecting plate coupled to the other end of the steel pipe; And
And a plurality of flanges coupled to the inside of the connection plate and inserted into the cutout grooves formed at the other end of the steel pipe,
Wherein the coupling plate is formed with a plurality of coupling holes for coupling with other members.

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