KR101784941B1 - Connecting structure - Google Patents

Abstract

There is provided a connecting beam disposed in the panel connecting portion to eliminate stress concentration of the connecting portion, to increase the strength, and to improve the panel connecting property to provide an improved connecting structure, and a connecting structure including the connecting beam. The connecting beam includes a hollow beam body including at least one inclined surface on the outer peripheral portion and a plurality of connecting pieces integrally formed with the hollow beam body and projecting outward at the end of the inclined surface of the hollow beam body and connected in parallel with the connection target panel.

Description

Connecting structure {Connecting structure}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting beam and a connecting structure for connecting and structuring panels, and more particularly, A connection beam providing a connection structure, and a connection structure including the connection beam.

Panels are used as construction materials for buildings and various facilities. Various panels that can be used as interior or exterior materials are being manufactured, and the exterior of the facility can be easily closed using metal panels. In particular, it is possible to easily structure a hull block or module by combining a large metal plate or a sandwich panel at the time of ship drying.

The metal panel may be joined using a joining member such as a bolt, or may be directly bonded by a welding method. It is possible to securely join the metal panel with a variety of welding methods that can minimize seams in the joint surfaces and increase the bond strength. By using the welding method, it is possible to realize a very simple coupling structure by a direct connection between the panels without a separate member.

However, if the panels are vertically connected to each other by the welding method, there may arise a problem that the connection portion becomes relatively weak. Particularly, in order to structure a hull block or the like, it is necessary to vertically weld the surface and the end of the panel or to connect the end and the end vertically so as to connect in a three-dimensional form, So that the bonding strength is lowered and the structural stability is difficult to secure sufficiently.

Korean Patent Registration No. 10-1279647, (2013.06.26)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an improved connection structure which is disposed in a panel connecting portion to eliminate stress concentration in a panel connecting portion, Beam.

It is another object of the present invention to provide a connection structure including a connection beam for eliminating stress concentration in a panel connection part, increasing strength, and improving panel coupling property.

The technical problem of the present invention is not limited to the above-mentioned problems, and another technical problem which is not mentioned can be clearly understood by those skilled in the art from the following description.

The connecting beam according to the present invention includes: a hollow beam body including at least one inclined surface on an outer peripheral portion; And a plurality of connecting pieces formed integrally with the hollow beam body and protruding outward at an end of the inclined surface of the hollow beam body and connected in parallel with the panel to be connected.

The connecting pieces may protrude in different directions from one end and the other end of the inclined surface, respectively.

At least some of the connecting pieces may be formed as a pair protruding in parallel to each other.

The hollow beam body may further include a connection portion connecting between the pair of parallel protruding portions of the connection piece and having a width smaller than that of the inclined portion.

The panel may include at least one sandwich panel coupled with a pair of parallel protruding pieces of the connecting piece.

The length of the hollow beam body and the width of the connecting piece may correspond to the width of the panel.

And an auxiliary supporting surface connected between different points inside the hollow beam body.

The connecting structure according to the present invention comprises a connecting beam; And a flat panel coupled to the connection beam.

The panel may include a sandwich panel with a wire weave core structure inserted between the two support panels.

Wherein the panel comprises a first panel coupled to one side of the hollow beam body and at least one second panel perpendicularly coupled to the first panel on the side of the hollow beam body, The panel can be positioned.

The panel includes a first panel, a second panel, a third panel, and a fourth panel vertically coupled to each other around the hollow beam body, wherein the inclined surface is a portion of the first panel and the second panel positioned between the first panel and the second panel. A second inclined surface positioned between the second panel and the third panel, a third inclined surface positioned between the third panel and the fourth panel, and a third inclined surface positioned between the fourth panel and the first panel, As shown in FIG.

The panel includes a first panel, a second panel, and a third panel that are rotationally symmetrically coupled to each other around the hollow beam body at an equal angle to each other, and the inclined surface is positioned between the first panel and the second panel A first inclined surface, a second inclined surface positioned between the second panel and the third panel, and a third inclined surface positioned between the third panel and the first panel.

By using the connecting beam according to the present invention, it is possible to eliminate the stress concentration of the panel connecting portion and increase the rigidity of the connecting portion, thereby greatly improving the structural strength of the connecting portion. Further, it is possible to provide an improved connection structure in which coupling beams between the connection beams and the panel are improved by the connection beams of the present invention, and a connection structure including such connection beams can provide a very improved panel assembly Structure can be implemented.

1 is a perspective view of a connection beam according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating an example of a panel coupled with the connecting beam and the connecting beam of FIG.
3 is a cross-sectional view showing a modification of the connecting beam of FIG.
FIG. 4 is a perspective view illustrating a connection state of the connection beam and the panel of FIG. 1. FIG.
5 is a cross-sectional view showing a connection beam and a modification thereof according to a second embodiment of the present invention.
6 is a cross-sectional view illustrating a connection beam and a modification thereof according to a third embodiment of the present invention.
7 is a cross-sectional view illustrating a connection beam and a modification thereof according to a fourth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the connection beam according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a perspective view of a connection beam according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating an example of a panel coupled with the connection beam and the connection beam of FIG.

1, a connecting beam 1 according to a first embodiment of the present invention includes a hollow beam body 100 including at least one inclined surface 101 at its outer periphery, And a plurality of connecting pieces 200 protruding outward from an end of the inclined surface 101 of the hollow beam body 100 and connected in parallel with a panel to be connected (see 2 in FIG. 2). The connecting pieces 200 are connected to the panel 2 in parallel so that the different panels 2 protruding in different directions with the inclined surface 101 of the hollow beam body 100 interposed therebetween and aligned in a protruding direction Can be combined.

Particularly, since the connecting piece 200 protrudes from both ends of the inclined surface 101 and is connected to the panel 2, the inclined surface 101 is positioned between the different panels 2 coupled to the connecting beam 1, . Therefore, even if the panels 2 are vertically coupled to each other, sufficient structural rigidity can be obtained by the supporting structure of the hollow beam member 100 including the inclined surface 101. [ The angle between the panels 2 is adjusted by the arrangement of the connecting pieces 200. The actual panel 2 and the connecting beams 1 are connected in parallel so that the panels 2 are arranged in different directions Even when a three-dimensional coupling structure is realized, it is possible to exclude a structure in which different panels 2 are vertically welded directly against each other. This makes it possible to easily relieve the stress concentration at the connecting portion of the panel 2, which may be caused by vertical welding between the panels 2 or direct connection between the panels 2, and to greatly improve the structural strength of the connecting portion.

Hereinafter, the connection beam 1 of the present invention having such characteristics will be described in more detail with reference to the respective drawings. Other features not mentioned in the description below may be more clearly understood.

The connecting beam 1 includes a plurality of connecting pieces 200 integrally formed with the hollow beam member 100 and the hollow beam member 100 as shown in FIG. The hollow beam member 100 and the connecting piece 200 may be formed in an extrusion manner and integrally structured with each other. Since the hollow beam member 100 and the connecting piece 200 are integrally formed and formed, there is no joint or the like, and the structural rigidity is greatly increased. The efficiency of mass production is increased by integrally extruding the connecting piece 200 and the hollow beam body 100, and the arrangement of the connecting piece 200 and the arrangement of the hollow beam body 100 can be performed using a system forming method, The shape and the like of the substrate can also be appropriately changed. It is possible to manufacture the connecting beam 1 in which the hollow beam member 100 and the connecting piece 200 are integrally formed by using various various extrusion molding methods.

 The hollow beam body (100) defines the overall shape of the connecting beam (1). 1 and 2, the hollow beam member 100 may have a hollow prism shape. In particular, the hollow beam member 100 includes at least one inclined surface 101 on the outer peripheral portion to form an effective supporting structure using the inclined surface 101. [ The hollow beam member 100 may include a supporting portion 103 connected to the inclined surface 101 and a connecting portion 102. The connecting portion 102 and the supporting portion 103 may be connected to the inclined surface 101 to form a polygonal prism . ≪ / RTI > The hollow beam body 100 can be deformed into various shapes within the limit of the hollow beam body including at least one inclined face 101 at its outer periphery and elongated at one side.

The connecting piece 200 is formed integrally with the hollow beam member 100 as described above. The connecting piece 200 protrudes outward from the end of the inclined surface 101 of the hollow beam body 100 as shown in FIGS. 1 and 2, and is connected in parallel with the panel to be connected (see 2 in FIG. 2). A plurality of connecting pieces 200 may be formed at different positions, and a plurality of connecting pieces 200 may be connected to different panels 2, respectively. At least a part of the connecting pieces 200 may be formed as a pair which are projected in parallel to each other as shown in the drawing, so that the pair of connecting pieces 200 protruding in parallel with each other can be easily connected to the sandwich panel. A connecting portion 102 may be formed on the outer peripheral portion of the hollow beam body 100 to bridge the pair of parallel pieces of the connecting piece 200 with a width smaller than the inclined surface 101 to complement the rigidity.

In FIG. 2, a sandwich panel is shown as an example of the panel 2 connected to the connecting piece 200. The panel 2 connected to the connecting piece 200 is formed of a flat panel 2 connected to the connecting piece 200 in parallel. The panel 2 may be formed of a sandwich panel in which core members 22 are inserted between two different support panels 21 to complement the strength in a multi-layered structure. That is, as shown in the drawings, the pair of connecting pieces 200 may be formed in a plurality of pairs, so that the inter-sandwich panel interconnection structure via the connecting beams 1 can be realized very easily. However, the present invention is not limited to this, and the arrangement of the connecting pieces 200 may be adjusted so that a mutual coupling structure between the sandwich panel and the single steel plate and a mutual coupling structure between the different single steel plates can be implemented very easily. This will be described in more detail below.

The sandwich panel connected to the connecting piece 200 may be, in particular, the core 22 made of a wire-woven bulk kagome (Wbk). The sandwich panel may be formed such that a truss structure implemented by a wire weaving method is formed between the support panels 21 to facilitate deformation or stress. The connection beam 1 and this sandwich panel can be combined to form a very rigid connection structure that is complementary in structural rigidity. As described above, it is possible to realize not only the mutual coupling between the sandwich panels but also the mutual coupling between the sandwich panel and the single steel plate and the mutual coupling structure between the different single steel plates using the connecting beam 1, . The connection structure will be described later in more detail.

The connecting piece 200 is connected to the panel 2 in parallel. The connecting piece 200 can be connected to the panel 2, for example, by welding. The panel 2 is a panel 2 formed in a flat plate shape as described above and can be connected to the connecting piece 200 in parallel by aligning the panel 2 in the protruding direction of the connecting piece 200. That is, since the connecting piece 200 and the panel 2 are connected in parallel to each other, the joining method of joining the plate materials vertically and joining them by welding or the like is excluded. Therefore, it is possible to effectively eliminate the stress concentration that has occurred in the joint portion welded in the vertical direction in the related art, and to effectively prepare for deformation or breakage of the joint portion. It is possible to optimize the connection strength between the panel 2 and the connecting piece 200 and the mutual distance between the panels 2 and to improve the coupling with the panel 2 by appropriately adjusting the length and thickness of the connecting piece 200 .

1 and 2, the connecting pieces 200 protrude in different directions from one end and the other end of the inclined surface 101, respectively. Whereby the angle of engagement between the panels 2 is adjusted. That is, as shown in FIG. 2, the connecting pieces 200 located at one end and the other end of the inclined surface 101 are vertically arranged, and the panel 2 is connected parallel to each connecting piece 200, (2) Vertical coupling structure between each other can be realized. If the protruding direction of the connecting piece 200 is appropriately changed according to need, it is possible to implement the panel 2 coupling structure in various directions without being limited to the vertical direction.

It is preferable that the width of the connecting piece 200 and the length of the hollow beam body 100 are formed to have a size corresponding to the width of the panel 2 so that the connecting piece 200 and the panel 2 can be easily connected to each other. For example, as shown in FIG. 1, the connecting piece 200 extending along the longitudinal direction of the hollow beam body 100 is formed to have a size corresponding to the width of the panel 2 to be connected, A connection structure having sufficient bonding strength can be realized by welding in parallel to the end of the base 2. However, it is also possible to connect the connecting piece 200 and the panel 2 in parallel to each other using a coupling method other than welding.

As described above, the connecting beams 1 may be formed in various structures that can adjust the arrangement of the connecting pieces 200 so that mutual bonding between sandwich panels, mutual bonding between a sandwich panel and a single steel sheet, mutual bonding between different single steel sheets, . In addition, the connecting piece 200 and the panel 2 can be combined with each other to realize the panel 2 coupling structure arranged in a three-dimensional manner. Hereinafter, this will be described with reference to FIGS. 3 and 4. FIG.

3 is a cross-sectional view showing a modification of the connecting beam of FIG.

The connecting beam 1 includes a pair of parallel protruding pieces of the connecting piece 200 on one end of the inclined surface 101 (the left end of the inclined surface in Fig. 3 (a)) as shown in Fig. 3 (a) (The right end of the inclined surface in Fig. 3 (a)). A sandwich panel 2 having a support panel 21 and a core 22 formed at one end thereof and a panel 2 having a single steel plate at the other end thereof It is possible to realize a structure in which the sandwich panel and the single steel plate are coupled to each other via the connecting beam 1.

Also, the connecting beam 1 may include only the connecting piece 200 which is uniquely protruded at both ends of the inclined surface 101 as shown in FIG. 3 (b). When such a structure is formed, a structure in which a single steel plate 2 is coupled to both ends of the slope 101, and mutually different single steel plates are coupled to each other can be realized. As a result, the arrangement of the connecting pieces 200 protruding from the end portions of the inclined surface 101 can be suitably adjusted to easily realize a structure of mutually connecting the panels 2 in various shapes. Although not shown, it is also possible to complement the strength of the connecting beam 1 by forming a supporting structure across the inside of the hollow beam body 100 of the connecting beam 1. For example, a support structure such as an auxiliary support surface (not shown) connected between different points inside the hollow beam body 100 may be used to form a beam structure that is more resistant to deformation, such as twisting.

FIG. 4 is a perspective view illustrating a connection state of the connection beam and the panel of FIG. 1. FIG.

The connecting beams 1 and the panels 2 are mutually coupled as shown in FIG. 4 to form a highly rigid coupling structure. The flat panels 2 are connected in parallel with the connecting piece 200 protruding from both ends of the inclined surface 101 of the connecting beam 1 and are coupled to each other via the connecting beam 1. Since a plurality of connecting pieces 200 are integrally formed in one connecting beam 1, at least two panels 2 different from each other can be connected to one connecting beam 1, Can be applied to the different ends of the single panel 2, respectively, as shown. Accordingly, the plurality of panels 2 may be connected to each other through the connection beam 1, or a plurality of panels 2 may be connected to each other through a plurality of connecting beams 1, (2) The coupling structure can be easily implemented.

Particularly, as described above, since the connecting pieces 200 are protruded with the inclined surface 101 therebetween, the inclined surfaces 101 are arranged between the panels 2 connected to the connecting pieces 200, A rigid support structure is realized. As shown in the drawing, each of the panels 2 is arranged vertically to each other, but is connected in parallel with the connecting piece 200, and the connection structure such as vertical welding between the plates is excluded, The structural rigidity can be greatly improved. The panel 2 is formed of a sandwiched panel in which the structure of the wire weaving core 22 is inserted between two support panels 21 to form a connecting structure including the connection beam 1 and the panel 2. [ The overall structural strength can be greatly improved and the connecting block 3 connecting to the connecting beam 1 at the corresponding corner portion as shown in the case where the end of the connecting beam 1 is concentrated in a single corner according to the arrangement So that the structural strength can be increased.

In this manner, the panels 2 can be mutually coupled via the connecting beams 1 to structure the different panels 2 in a three-dimensional form, and the fragile portions of the connecting portions can be effectively improved. 5, the sandwich-type panels 2 are coupled to each other. However, the present invention is not limited thereto, and the arrangement of the connecting pieces 200 may be adjusted so that the sandwich-type panels 2 are sandwiched between the sandwich panels, between the sandwich panel and the single steel plates, So that an effective coupling structure between them can be realized. That is, the panel 2 shown in FIG. 5 can be understood as a single panel in the form of a single steel sheet or a mixture of a single steel panel 2 and a sandwich panel 2. And the panel 2 structured in various forms can be very easily implemented using the connecting beam 1 of the present invention.

Hereinafter, a connection beam according to a second embodiment of the present invention will be described in detail with reference to FIG. In the following description, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

Referring to FIG. 5, the connection beam 1-1 according to the second embodiment of the present invention may be formed to be vertically connectable to three different panels. The panel includes a first panel 2a coupled to one side of the hollow beam body 100 and at least one second panel 2b coupled to the other side of the hollow beam body 100 perpendicular to the first panel 2a , The sloped surface 101 is positioned between the first panel 2a and the second panel 2b as shown in Fig. When the second panel 2b is one, it can be understood within the same scope as the arrangement of the first embodiment described above. The second embodiment of the present invention includes two second panels 2b perpendicular to the first panel 2a. By using this arrangement, three panels perpendicular to each other through the connecting beam 1-1 Can be combined.

Also in this embodiment, since the inclined surface 101 is located between the different panels, a very solid support structure using the inclined surface 101 can be realized. In addition, as shown in FIG. 5 (a), parallel protruding pairs of the connecting pieces 200 may be formed at each end of the inclined surface 101 to realize a structure in which mutually different sandwich panels are coupled to each other. It is possible to realize a structure in which a sandwich panel and a single steel plate are coupled to each other by forming a connecting piece 200 that is united with a pair of parallel protrusions of the connecting piece 200 as shown in FIG. In addition, as shown in FIG. 5 (c), it is also possible to form a single protruded connecting piece 200, thereby realizing a structure in which mutually different single steel plates are coupled to each other.

Hereinafter, a connecting beam according to a third embodiment of the present invention will be described in detail with reference to FIG. In the following description, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

Referring to FIG. 6, the connecting beam 1-2 according to the third embodiment of the present invention may be formed in a shape that is coupled with three different panels, but can be coupled in a direction other than the vertical direction. The panel includes a first panel 2a, a second panel 2b, and a third panel 2c spaced equally from each other around the hollow beam body 100 and rotationally symmetrically coupled to the first panel 2b A second inclined surface 101a positioned between the second panel 2b and the second panel 2b and a second inclined surface 101b located between the second panel 2b and the third panel 2c, And a third inclined surface 101c positioned between the first panel 2a and the first panel 2a. With this arrangement, three panels spaced equidistantly (e.g., 60 degrees) from one another via the connecting beams 1-2 can be coupled to one another.

Also in this embodiment, since the first inclined surface 101a, the second inclined surface 101, and the third inclined surface 101c are located between the different panels, a very solid support structure using the inclined surfaces can be realized. 6 (a), a pair of parallel protrusions of the connecting piece 200 may be formed at each end of the inclined surface 101, thereby making it possible to realize a structure in which mutually different sandwich panels are coupled to each other, It is possible to realize a structure in which a sandwich panel and a single steel plate are coupled to each other by forming a connecting piece 200 that is united with a pair of parallel protrusions of the connecting piece 200 as shown in FIG. In addition, as shown in FIG. 6 (c), it is also possible to implement a structure in which only the single connecting plate 200 protruded is mutually coupled to mutually combine the single steel plates.

Hereinafter, a connecting beam according to a fourth embodiment of the present invention will be described in detail with reference to FIG. In the following description, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

Referring to FIG. 7, the connecting beams 1-3 according to the fourth embodiment of the present invention may be formed in a shape that can be coupled with four mutually perpendicular panels. The panel includes a first panel 2a, a second panel 2b, a third panel 2c, and a fourth panel 2d which are vertically coupled to each other around the hollow beam body 100, A first inclined surface 101a positioned between the panel 2a and the second panel 2b, a second inclined surface 101b located between the second panel 2b and the third panel 2c, A third inclined surface 101c positioned between the second panel 2c and the fourth panel 2d and a fourth inclined surface 101d positioned between the fourth panel 2d and the first panel 2a. With this arrangement, four different panels perpendicular to each other can be coupled to one another via the connecting beams 1-3.

Also in this embodiment, since the first inclined surface 101a, the second inclined surface 101, the third inclined surface 101c, and the fourth inclined surface 101d are positioned between the different panels, a very rigid support structure using the inclined surfaces is provided Can be implemented. In addition, as shown in FIG. 7 (a), parallel protruding pairs of connecting pieces 200 may be formed at each end of the inclined surface 101 to realize a structure in which mutually different sandwich panels are coupled to each other. It is possible to realize a structure in which a sandwich panel and a single steel plate are coupled to each other by forming a connecting piece 200 that is united with a pair of parallel protrusions of the connecting piece 200 as shown in FIG. In addition, as shown in FIG. 7 (c), only a single protruded connecting piece 200 may be formed to realize a structure in which mutually different single steel plates are coupled to each other. It is possible to easily combine and structure the connection beam and the panel using various embodiments as described above.

Hereinafter, a connection structure according to the present invention will be described in detail with reference to the above description. The connection structure will be described with reference to the respective drawings described above. The description of the below-mentioned components, which are not mentioned separately, is replaced by the description of the above-described embodiments.

The connecting structure according to the present invention is a flat plate type panel (2, Fig. 2, Fig. 4, Fig. 2, Fig. 4) which is combined with the connecting beam (1, 1-1, 1-2, 1-3) 5 to 7, 2a, 2b, 2c and 2d). The connecting structure is structured such that the panels are three-dimensionally structured with respect to each other via a connecting beam, and a very stereoscopic panel coupling structure can be realized using such a connecting structure as shown in FIG. In particular, the flat panel includes a sandwich panel in which the structure of the wire weaving core 22 is inserted between the two support panels 21 as described above, and the panel is connected in parallel with the connection piece 200, It is possible to realize a highly rigid connection structure in which the structure of weak parts such as stress concentration is improved very effectively. As described above, it is possible to adjust the arrangement of the connecting pieces 200 or to change the shape of the connecting beams to various shapes, thereby constructing the connecting structure structured in a more stereoscopic shape. If necessary, the connecting block 3 can be inserted Stiffness can be reinforced. With such a connection structure, it is possible to easily structure a ship or various other facilities and the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1, 1-1, 1-2, 1-3: connecting beam 2: panel
3: connection block 2a: first panel
2b: second panel 2c: third panel
2d: fourth panel 21: support panel
22: core material 100: hollow beam body
200: connecting piece 101: inclined surface
102: connection part 103: support part
101a: first inclined surface 101b: second inclined surface
101c: third inclined surface 101d: fourth inclined surface

Claims (12)

A hollow beam body including at least one inclined surface on an outer peripheral portion thereof,
A connecting beam formed integrally with the hollow beam body and protruding outward at an end of the inclined surface of the hollow beam body, and including a plurality of connecting pieces connected in parallel with a panel to be connected; And
And a flat panel coupled to the connecting beam,
The panel includes a first panel, a second panel, a third panel, and a fourth panel vertically coupled to each other around the connection beam,
Wherein the inclined surface includes a first inclined surface located between the first panel and the second panel, a second inclined surface located between the second panel and the third panel, and a second inclined surface located between the third panel and the fourth panel A third inclined surface, and a fourth inclined surface positioned between the fourth panel and the first panel. A hollow beam body including at least one inclined surface on an outer peripheral portion thereof,
A connecting beam formed integrally with the hollow beam body and protruding outward at an end of the inclined surface of the hollow beam body, and including a plurality of connecting pieces connected in parallel with a panel to be connected; And
And a flat panel coupled to the connecting beam,
The panel includes a first panel, a second panel, and a third panel that are rotationally symmetrically coupled to each other around the connecting beam at an equal angle to each other,
Wherein the inclined surface comprises a first inclined surface located between the first panel and the second panel, a second inclined surface located between the second panel and the third panel, and a second inclined surface located between the third panel and the first panel, And a third inclined plane which is inclined with respect to the first inclined plane. 3. The method according to claim 1 or 2,
And at least a part of the connecting pieces are formed as a pair protruding in parallel to each other in parallel. The method of claim 3,
Wherein the hollow beam body further comprises a connecting portion connecting between the pair of parallel protruding portions of the connecting piece, the connecting portion being smaller in width than the inclined surface. The method of claim 3,
Wherein the panel includes at least one sandwich panel that engages with a pair of parallel protruding pieces of the connecting piece. 3. The method according to claim 1 or 2,
Wherein a length of the hollow beam body and a width of the connecting piece correspond to a width of the panel. 3. The method according to claim 1 or 2,
And an auxiliary support surface connected between different points inside the hollow beam body. delete 3. The method according to claim 1 or 2,
Said panel comprising a sandwich panel in which a wire weave core structure is inserted between two support panels. delete delete delete

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