JP3044896U - Connection structure of C-shaped steel - Google Patents

Abstract

(57) [Summary] [Problem] Regardless of the direction and connection position of C-shaped steel,
C that can easily perform the connection work of the C-shaped steel material
To provide a connection structure for steel sections. SOLUTION: Fixed piece 14 fixed to connected member 12
Rises from the fixing piece 14 in a substantially vertical direction, has a bolt insertion hole 17 at the center, and has a C-shaped steel member 1 at one end center.
A connecting member 13 comprising a mounting piece 15 formed with a hooking piece 16 protruding toward one side and hooking a lip piece 21 of the C-shaped steel material 11, a screw hole 19, and a lip piece 21 of the C-shaped steel material 11; Tightening plate 1 for holding 22 between mounting piece 15
8 and the lip pieces 21 and 22 of the C-shaped steel material 11
And a bolt 20 to be tightened between the mounting piece 15.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a connection structure of C-shaped steel materials, and more particularly, to a connection structure of C-shaped steel materials used as steel materials of various building structures.

[0002]

[Prior art]

 Conventionally, a structure as shown in FIG. 12 has been adopted as a connection structure of a C-shaped steel material in which two connected members are connected and at least one of the connected members is a C-shaped steel material. In the prior art shown in FIG. 12, a connection comprising a fixing piece 4 fixed to a connected member 2 connected to a C-shaped steel material 1 and a mounting piece 5 formed to stand substantially vertically from the fixing piece 4. The back surface of the C-shaped steel member 1 is brought into contact with the member 3, and the bolt 8 is inserted into the bolt insertion hole 6 formed in the C-shaped steel member 1 and the bolt insertion hole 7 formed in the mounting piece 5. Then, the nut 9 is tightened to connect the C-shaped steel member 1 and the connected member 2.

However, in the above-mentioned conventional technique, it is necessary to previously drill the bolt insertion hole 6 for inserting the bolt 8 in the C-shaped steel material 1 at a factory or the like, and this drilling operation is troublesome. In particular, when the C-shaped steel material 1 is long, the drilling operation is very troublesome. Further, if the bolt insertion holes 6 are previously drilled in a factory or the like as described above, it is difficult to position the bolt insertion holes 6 and to perform on-site positioning, and finely adjust the connection position of the C-shaped steel material 1. It was difficult to do. Therefore, conventionally, not only when the drilling position of the bolt insertion hole 6 is inaccurate but also when the drilling position is accurate, for example, the arrangement positions of the connected member 2 and the connecting member 3 are changed. If the specification of each part is changed, for example, it is changed, it is extremely difficult to properly connect the C-shaped steel member 1 and the connected member 2.

[0004] Therefore, various connection structure technologies for C-shaped steel materials have been developed. For example, the technology disclosed in Japanese Utility Model Laid-Open Publication No. Hei 5-24709 (hereinafter referred to as Known Example 1) discloses a method in which a horizontal member such as a purlin or a rim formed of a C-shaped steel material is used as a joint or a pillar. A support piece (corresponding to a mounting piece in the present application) is disposed so as to be orthogonal to a mounting base material (corresponding to a connected member in the present application), and protrudes laterally from an outer surface of the mounting base. The horizontal member is placed, one side opening of the horizontal member is opposed to the support piece, and an opposing lip provided at an opening edge is placed on the support piece, and the support piece is provided. A holding plate (corresponding to a fastening plate in the claims of the present application) screwed to a connecting bolt that is more protruded is housed and arranged in the horizontal member.

[0005] With this configuration, the joint structure (or pillar) and the purlin (or trunk edge) formed of a C-shaped steel material are connected to each other, and the C-shaped steel material is mounted on the support piece. In the case of a structure where the bolts are inserted, it is not necessary to previously drill bolt insertion holes for inserting bolts in a C-shaped steel material at a factory or the like, which improves work efficiency and fine-tunes the connection position of the C-shaped steel material. Can be easily performed.

[0006]

[Problems to be solved by the invention]

 However, the technique disclosed in the publicly known example 1 is a connecting structure for connecting a joint palm (or a pillar) and a purlin (or a rim) formed of a C-shaped steel material, and the C-shaped steel material is connected to the supporting piece. The above-described effect is exhibited only in the case of a structure in which the C-shaped steel material is connected to the member to be connected, without facing one side opening of the C-shaped steel material to the ground. In such a case, the above effect cannot be exhibited.

[0007] In addition, conventionally, when connecting two C-shaped steel materials, complicated means such as welding of these C-shaped steel materials are employed, and the connection is often performed at high places. The work efficiency has been reduced due to the difficulty of the work. To solve the problem, for example, the technology described below is disclosed in JP-A-8-42002 (hereinafter referred to as known example 2). I have.

[0008] The technique disclosed in the second prior art discloses a technique in which a lip piece of each C-shaped steel material is connected to a connecting plate (corresponding to a connecting member in the claims of the present application) and a backing plate (corresponding to a fastening plate in the claims of the present application). , It is structured to be held between bolts and nuts. With this configuration, when connecting two C-shaped steel materials, it is not necessary to weld these C-shaped steel materials or to form a bolt insertion hole in each of the C-shaped steel materials. Fine adjustment of the connection position of the shaped steel material can be easily performed.

However, according to the technique disclosed in the prior art 2, when the worker attaches the bolt and the nut to the connecting position at the time of installation on the site, the worker has to perform the tightening work, and this tightening work is simple. However, there is a problem that the work becomes complicated. The present invention has been made in view of the above problems, and provides a connection structure of C-shaped steel materials that can easily perform the connection work of the C-shaped steel materials regardless of the orientation and the connection position of the C-shaped steel materials. It is intended to be.

[0010]

Means for Solving the Problems and Their Effects

 In order to achieve the above object, a connecting structure of a C-shaped steel material according to the present invention (1) connects two connected members and at least one of the connected members is a C-shaped steel material. A fixing piece fixed to the other member to be connected, and rising from the fixing piece in a substantially vertical direction, having a bolt insertion hole at the center, and projecting toward the C-shaped steel material at one end center. And a connecting member comprising a mounting piece formed with a hook piece on which the lip piece of the C-shaped steel material is hooked; and a screw hole, and the lip piece of the C-shaped steel material is clamped between the mounting piece and the mounting piece. It is characterized by comprising a fastening plate and a bolt for fastening the lip piece of the C-shaped steel material between the fastening plate and the mounting piece.

According to the connection structure (1) for the C-shaped steel material, the fixing member is fixed to the connected member to attach the connection member to the connected member, and the C-shaped steel material is attached to the hooking piece. The C-shaped steel material is attached to the connecting member by hooking the lip piece of the above, performing a fastening operation with the bolt, and holding the lip piece of the C-shaped steel material between the fastening plate and the mounting piece. The C-shaped steel member and the connected member can be connected. In addition, by hooking the lip piece of the C-shaped steel material on the hooking piece and supporting the C-shaped steel material on the connecting member, the tightening operation becomes extremely easy. In addition, the hook piece not only facilitates the tightening operation, but also supports the C-shaped steel material to improve the strength of the connection. Therefore, regardless of the direction and the connection position of the C-shaped steel material, a strong connection between the C-shaped steel material and the member to be connected is enabled.

[0012] Further, the connection structure (2) for C-shaped steel materials according to the present invention is a structure for connecting two C-shaped steel materials, which is attached to each C-shaped steel material, and a bolt is inserted into a central portion. A connection in which two mounting pieces having a hole and having a hook at a center portion at one end and projecting toward the side of the C-shaped steel material and hooking a lip piece of the C-shaped steel material are joined in a substantially L-shaped cross section. A clamping plate having a screw hole and holding the lip piece of the C-shaped steel material between the mounting piece and the fastening plate; And a bolt for tightening between them.

[0013] According to the connection structure (2) for the C-shaped steel material, the lip piece of the C-shaped steel material is hooked on the hooking piece and tightened with the bolt. By sandwiching the lip piece of the C-shaped steel material, the C-shaped steel material can be attached to the connecting member to connect the two C-shaped steel materials. In addition, by hooking the lip piece of the C-shaped steel material on the hooking piece and supporting the C-shaped steel material on the connecting member, the tightening operation becomes extremely easy. In addition, the hook piece not only facilitates the tightening operation, but also supports the C-shaped steel material to improve the strength of the connection. Therefore, the two C-shaped steel members can be firmly connected regardless of the orientation and the connection position of the C-shaped steel materials.

Further, since the cross-sectional shape of the connecting member is substantially L-shaped, by forming the hooking piece at an appropriate position, it is possible to connect the two C-shaped steel materials in various vertical and horizontal directions. It is suitable for constructing a steel structure in which a large number of C-shaped steel materials are arranged vertically and horizontally. Further, the connecting position between the C-shaped steel materials can be easily adjusted.

[0015] Further, the connection structure (3) for a C-shaped steel material according to the present invention, in the connection structure (2) for a C-shaped steel material, connects two C-shaped steel materials as a purlin, and the connection member is a climbing beam. In this connection structure, the inclination of the end of each of the mounting pieces joined to the climbing beam is set according to the roof slope.

[0016] According to the connection structure (3) for the C-shaped steel material, the inclination of the end of each of the mounting pieces to be joined to the climbing beam is set according to the roof gradient. The use of the connecting member facilitates the connection of the two C-shaped steel members as a purlin.

[0017] Further, the connection structure (4) for C-shaped steel materials according to the present invention is a structure for connecting two C-shaped steel materials, and is attached to each C-shaped steel material, and a bolt is inserted into a central portion. A connecting member comprising: a mounting piece having a hole, a hook piece protruding toward the C-shaped steel material side and being hooked with a lip piece of the C-shaped steel material at one end center portion; A clamping plate having a screw hole and holding the lip piece of the C-shaped steel material between the mounting piece and the lip piece of the C-shaped steel material between the fastening plate and the mounting piece; And a fastening bolt.

[0018] According to the connection structure (4) for the C-shaped steel material, the lip piece of the C-shaped steel material is hooked on the hooking piece and tightened with the bolt. By sandwiching the lip piece of the C-shaped steel material, the C-shaped steel material can be attached to the connecting member to connect the two C-shaped steel materials. In addition, by hooking the lip piece of the C-shaped steel material on the hooking piece and supporting the C-shaped steel material on the connecting member, the tightening operation becomes extremely easy. In addition, the hook piece not only facilitates the tightening operation, but also supports the C-shaped steel material to improve the strength of the connection. Therefore, the two C-shaped steel members can be firmly connected regardless of the orientation and the connection position of the C-shaped steel materials.

Further, since the connecting member is composed of two mounting pieces and a connecting portion thereof, even if the two C-shaped steel materials to be connected are not arranged vertically and horizontally, the two C-shaped steel members are also provided. Even if there is a distance between the mounting pieces disposed on the respective shaped steel members, the connection of the two C-shaped steel members is enabled. Further, the connecting position of the C-shaped steel materials can be easily adjusted.

Further, the connection structure (5) of the C-shaped steel material according to the present invention is characterized in that, in the connection structure (4) of the C-shaped steel material, the connecting portion has a hinge structure.

According to the connection structure (5) for C-shaped steel materials, since the connecting portion has a hinge structure, even if the two C-shaped steel materials to be connected are not arranged vertically and horizontally, the connection position is not changed. By adjusting the connecting portion of the connecting member according to the angle formed by the two C-shaped steel materials, the two C-shaped steel materials can be connected.

Further, in the connection structure (6) for a C-shaped steel material according to the present invention, in the connection structure (4) for a C-shaped steel material, the connecting portion is constituted by a flat plate portion, and the mounting piece is formed by the connecting portion. It stands up almost vertically.

[0023] According to the connection structure (6) for the C-shaped steel material, since the connecting portion is constituted by the flat plate portion, the distance between the mounting pieces respectively provided on the two connected C-shaped steel materials is reduced. Even if it occurs, the two C-shaped steel members can be connected by supplementing the distance by the flat plate portion.

Further, the connection structure (7) for a C-shaped steel material according to the present invention is any one of the connection structures (1) to (6) for the C-shaped steel material, wherein a screw hole of the fastening plate is formed by a nut. It is characterized by being done.

According to the connection structure (7) for the C-shaped steel material, since the screw holes of the tightening plate are formed by nuts, the portion where the bolt is inserted through the tightening plate becomes large. The strength of the connection can be improved.

In the connecting structure (8) for a C-shaped steel material according to the present invention, in any one of the connecting structures (1) to (6) for the C-shaped steel material, a substantially central portion of the fastening plate has a thickness. And the screw hole is formed in the thick portion.

[0027] According to the connection structure (8) for the C-shaped steel material, the substantially central portion of the fastening plate is a thick portion, and the screw hole is formed in the thick portion. The portion where the bolt is inserted through the fastening plate is increased, and the strength of the connection can be improved.

[0028] Further, in the connecting structure (9) for C-shaped steel materials according to the present invention, in any one of the connecting structures (1) to (8) for the C-shaped steel materials, the fastening plate may have a central curved portion; And a rectangular symmetrical portion on both sides for holding the lip piece of the C-shaped steel material, and is characterized in that it has a line-symmetrical shape with a straight line passing through the center of the central curved portion as an axis.

[0029] According to the connection structure (9) for the C-shaped steel material, since the tightening plate is configured to include the center curved portion, the tightening plate into which the bolt is inserted is rotated. Also, the central portion of the fastening plate does not contact the hooking piece. Therefore, the rectangular portions existing on both sides so as to have a line-symmetrical shape about the straight line passing through the center of the center curved portion as an axis are arranged at locations suitable for holding the lip piece of the C-shaped steel material. I can do it.

Further, the connection structure (10) for a C-shaped steel material according to the present invention is the same as any one of the connection structures (1) to (9) for the C-shaped steel material described above, except that the width of the fastening plate becomes the shortest. , Characterized in that it is shorter than the distance between opposing lip pieces of the C-shaped steel material.

According to the connection structure (10) for the C-shaped steel material, the tip of the bolt inserted into the connection member and the fastening plate are screwed, that is, the connection member and the fastening plate are screwed. Even if the bolt and the bolt are integrated, the shortest width dimension of the fastening plate is shorter than the distance between the opposing lip pieces of the C-shaped steel material. Thus, the fastening plate can be inserted into the inside of the C-shaped steel material. Therefore, at the time of installation on the site, it is not necessary for an operator to carry the connecting member, the tightening plate, and the bolt separately to the connecting portion in an individual state, and assemble the connecting member, the tightening plate, and the bolt. It can be easily connected by carrying the integrated member to the connecting portion, inserting the tightening plate into the inside of the C-shaped steel material, and then tightening the bolt.

[0032]

[Embodiment of the invention]

 Hereinafter, an embodiment of a connection structure for C-shaped steel members according to the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway exploded perspective view (a) and a partially cutaway perspective view (b) schematically showing a connection structure of a C-shaped steel material according to Embodiment (1). In the figure, reference numeral 11 denotes a C-shaped steel material. A tightening plate 18 having a screw hole 19 is inserted into the C-shaped steel material 11, and inside the lip pieces 21 and 22 of the C-shaped steel material 11 facing each other. It is located at

The connecting member 13 rises in a substantially vertical direction from the fixing piece 14 and the fixing piece 14, has a bolt insertion hole 17 in the center, and has a C-shaped steel material 11 side at one end center. The fixing piece 14 is fixed to the connected member 12. Further, the lip pieces 21 and 22 of the C-shaped steel material 11 are fastened between the fastening piece 18 and the mounting piece 15 by the bolt 20.

According to the connecting structure of the C-shaped steel material according to the above-mentioned embodiment (1), the fixing member 14 is fixed to the connected member 12 so that the connecting member 13 is attached to the connected member 12 and The lip piece 21 of the C-shaped steel material 11 is hooked on the hook piece 16 and tightened with a bolt 20, and the lip pieces 21 and 22 of the C-shaped steel material 11 are held between the fastening plate 18 and the mounting piece 15. Thereby, the C-shaped steel member 11 can be attached to the connecting member 13 and the C-shaped steel member 11 and the connected member 12 can be connected. In addition, by hooking the lip 21 of the C-shaped steel material 11 on the hooking piece 16 and supporting the C-shaped steel material 11 on the connecting member 13, the tightening work becomes extremely easy. In addition, the hooking piece 16 not only facilitates the tightening operation, but also supports the C-shaped steel material 11 to improve the strength of the connection. Therefore, irrespective of the direction and the connection position of the C-shaped steel material 11, the strong connection between the C-shaped steel material 11 and the connected member 12 is enabled.

FIG. 2 is a partially transparent rear view (a) and a partially cutaway side view (b) schematically showing a connection structure of C-shaped steel members according to the embodiment (1). Since the attachment plate 18 includes the curved portion 18a, the curved portion 18a of the fastening plate 18 does not come into contact with the hooking piece 16 even if the attachment plate 18 is rotated about the bolt 20. Further, since the clamping plate 18 is formed with the rectangular portions 18b and 18c so as to be axisymmetric with respect to the straight line passing through the center of the curved portion 18a, the lip pieces 21 and 22 of the C-shaped steel material 11 are formed. Can be properly held. Also, broken lines A ₁ and A ₂ indicate portions that are clamped between the rectangular portions 18 b and 18 c of the fastening plate 18 and the mounting pieces 15.

FIG. 3 is a partially transparent rear view (a) and a partially cutaway side view (b) schematically showing a state when the fastening plate 18 is inserted into the C-shaped steel member 11. The attachment plate 18 is formed integrally with the connecting member 13 by bolts 20 and has a width S _{1, which} is the shortest width of the fastening piece 18, so that it can be inserted into the C-shaped steel member 11. has become shorter than the ripple flop pieces 21 and 22 between the distance S ₂ facing the steel member 11.

Therefore, even if the connecting member 13, the fastening plate 18 and the bolt 20 are integrated, the bolt 20 is rotated to make the longitudinal direction of the fastening plate 18 parallel to the longitudinal direction of the C-shaped steel material 11. By doing so, the fastening plate 18 can be inserted from the gap between the lip pieces 21 and 22. Next, the rectangular portions 18b and 18c of the fastening plate 18 are arranged on the upper surfaces of the lip pieces 21 and 22, respectively, and tightened with bolts 20 to narrow the lip pieces 21 and 22 with the fastening plate 18 and the mounting piece 15. To connect the C-shaped steel material 11 (see FIG. 2). Furthermore, the hooking piece 16 serves as a stopper for the rotating tightening plate 18, and by simply tightening the bolt 20, the tightening plate 18 can be arranged at an appropriate place and the holding can be performed. In addition, the connecting operation can be performed extremely easily.

FIGS. 4A and 4B are partially cutaway side views schematically showing other examples of the fastening plate in the C-shaped steel member connection structure according to the embodiment (1). (A) shows a fastening plate 24 in which a flat plate 25 having a bolt insertion hole 25a and a nut 26 having a screw hole 26a are integrally formed. In (b), a substantially central portion of the fastening plate 27 is a thick portion 28, and a screw hole 29 is formed in the thick portion 28. That is, in both of the fastening plates 24 and 27, the portion where the bolt 20 is inserted becomes large, and the connection strength of the C-shaped steel material 11 can be improved.

FIG. 5 is a plan view (a) and a perspective view (b) schematically showing a main part of a connection structure of a C-shaped steel member according to the embodiment (2). In the figure, reference numerals 34 and 35 denote C-shaped steel materials, which are connected to one side opening of the C-shaped steel material 34 and one end of the C-shaped steel material 35. The connecting member 31 has bolt insertion holes 32b and 33b at the center, and lip pieces 34a and 35a of the C-shaped steels 34 and 35 protruding toward the C-shaped steels 34 and 35 at the center at one end. Attachment pieces 32, 33 on which hook pieces 32a, 33a to be hooked are formed are connected in a substantially L-shaped cross section. Although not shown, the lip pieces of the C-shaped steel members 34 and 35 are tightened by bolts between the fastening plates inserted inside the C-shaped steel members 34 and 35 and the mounting pieces 32 and 33. (See FIGS. 1 and 2).

According to the connection structure of the C-shaped steel materials according to the above-described embodiment (2), the lip pieces 34a, 35a of the C-shaped steel materials 34, 35 are hooked on the hooking pieces 32a, 33a, and the work of tightening with the bolts is performed. The C-shaped steel members 34 and 35 are attached to the connecting member 31 by clamping the lip pieces of the C-shaped steel members 34 and 35 between the tightening plate and the mounting pieces 32 and 33. , 35 can be connected.

Further, by hooking the lip pieces 34a, 35a of the C-shaped steel members 34, 35 on the hooking pieces 32a, 33a and supporting the connecting member 31 and the C-shaped steel members 34, 35, the tightening work is extremely easy. Becomes Further, the hook pieces 32a, 33a not only facilitate the tightening operation, but also support the C-shaped steel members 34, 35 to improve the strength of the connection.

FIG. 6 is a partially broken plan view (a) and a perspective view (b) schematically showing another example of the connection structure of the C-shaped steel members according to the embodiment (2). In the drawings, 39 and 40 indicate C-shaped steel materials, and the C-shaped steel materials 39 and 40 are connected so as to be parallel to the longitudinal direction. The connecting member 36 has bolt insertion holes 37b and 38b at the center, and lip pieces 39a and 40a of the C-shaped steels 39 and 40 projecting toward the C-shaped steels 39 and 40 at the center at one end. The mounting pieces 37, 38 on which hook pieces 37a, 38a are formed are connected in a substantially L-shaped cross section.

FIG. 7 is a partially cutaway side view (a) and a perspective view (b) schematically showing another example of the connection structure of the C-shaped steel members according to the embodiment (2). In the drawing, reference numerals 44 and 45 denote C-shaped steel materials, which are connected by side surfaces of the C-shaped steel material 44 and one side opening of the C-shaped steel material 45. The connecting member 41 has bolt insertion holes 42b and 43b at the center, and lip pieces 44a and 45a of the C-shaped steel materials 44 and 45 protrude toward the C-shaped steel materials 44 and 45 at the center at one end. Attachment pieces 42, 43 on which hook pieces 42a, 43a to be hooked are formed are connected in a substantially L-shaped cross section.

As described above, the connecting members 31, 36, 41 have a substantially L-shaped cross section, and the hooking pieces 32 a, 33 a, 37 a, 38 a, 42 a, 43 a are formed at appropriate positions. This makes it possible to connect two C-shaped steel materials of various lengths and widths, and is particularly suitable for constructing a steel structure in which a large number of C-shaped steel materials are arranged vertically and horizontally. Further, the connecting position of the C-shaped steel materials can be easily adjusted.

When the connecting member 41 is attached to the C-shaped steel member 44 whose longitudinal direction is oriented vertically, there is a problem that the connecting member 41 is shifted downward. By arranging it on the steel material 44, the above problem can be solved.

FIG. 8 is a side view (a) and a front view (b) schematically showing a main part of a connection structure for C-shaped steel members according to the embodiment (3). In the drawings, 50 and 51 indicate C-shaped steel materials. The C-shaped steel materials 50 and 51 are connected so that one side opening portions face each other, but the angles of the connection portions are not vertical. Further, the connecting member 46 has bolt insertion holes 47b and 48b at the center, and lip pieces 50a and 51a of the C-shaped steel members 50 and 51 projecting toward the C-shaped steel members 50 and 51 at one end center. Attachment pieces 47, 48 on which hook pieces 47a, 48a to be hooked are formed are formed via a connecting portion 49 having a hinge structure. Also, although not shown, the lip pieces of the C-shaped steel members 50 and 51 are tightened by bolts between the fastening plates inserted inside the C-shaped steel members 50 and 51 and the mounting pieces 47 and 48. (See FIGS. 1 and 2).

According to the connecting structure of the C-shaped steel members according to the above-described embodiment (3), the connecting portion 49 has a hinge structure, so that two C-shaped steel members 50 and 51 to be connected are arranged vertically and horizontally. Even if not, by adjusting the connecting portion 49 of the connecting member 46 according to the angle formed by the C-shaped steel members 50 and 51 at the connecting position, the two C-shaped steel members 50 and 51 can be connected. .

FIG. 9 is a side view (a) and a perspective view (b) schematically showing a main part of a connection structure for C-shaped steel members according to the embodiment (4). FIG. 10 is a plan view (a) and a front view (b) schematically showing the connection structure. In the figure, reference numerals 56 and 57 denote C-shaped steel materials, which are connected to one end of the C-shaped steel material 56 and the back surface of the C-shaped steel material 57. The connecting member 52 has bolt insertion holes 53b and 54b at the center thereof, and lip pieces 56a and 57a of the C-shaped steel members 56 and 57 which protrude toward the C-shaped steel members 56 and 57 at one end center. The attachment pieces 53, 54 on which the hook pieces 53a, 54a to be formed are formed are formed via a coupling portion 55 which is a flat plate portion. Although not shown, the lip pieces of the C-shaped steel members 56 and 57 are tightened by bolts between the fastening plates inserted inside the C-shaped steel members 56 and 57 and the mounting pieces 53 and 54. (See FIGS. 1 and 2).

According to the connecting structure of the C-shaped steel members according to the above-described embodiment (4), since the connecting portion 55 is formed of a flat plate portion, it is disposed on the two C-shaped steel members 56 and 57 to be connected. Even if there is a distance between the mounting pieces 53, 54, the two C-shaped steel members 56, 57 can be connected by supplementing the distance by the flat plate portion, that is, the connecting portion 55. .

FIG. 11A is a plan view schematically showing a main part of a connection structure for C-shaped steel members according to the embodiment (5). FIG. 11B is a partially cutaway front view of the mounting piece in the connection structure as viewed from the front. In the drawing, reference numerals 62 and 63 indicate C-shaped steel materials, and two C-shaped steel materials 62 and 63 as a purlin are connected to each other, and a connecting member 59 is disposed on an H-shaped steel material 58 which is a climbing beam. The connecting member 59 has bolt insertion holes 60b and 61b at the center, and lip pieces 62a and 63a of the C-shaped steel 62 and 63 protruding toward the C-shaped steel 62 and 63 at the center at one end. It consists of attachment pieces 60, 61 on which hook pieces 60a, 61a to be hooked are formed. Further, the inclination θ of the ends of the mounting pieces 60 and 61 that are in contact with the H-shaped steel material 58 is set according to the inclination of the H-shaped steel material 58, that is, the roof gradient. Although not shown, the lip pieces of the C-shaped steel members 62 and 63 are tightened by bolts between the fastening plate inserted inside the C-shaped steel members 62 and 63 and the mounting pieces 60 and 61. (See FIGS. 1 and 2).

According to the connection structure of the C-shaped steel members according to the above-described embodiment (5), the inclination θ of the end portions of the mounting pieces 60 and 61 that are in contact with the H-shaped steel members 58 as the climbing beams is equal to the roof θ. Since the setting is made in accordance with the slope, the use of the connecting member 59 suitable for each roof slope facilitates the connection of the two C-shaped steel members 62 and 63 as the main house.

Further, in the connection structure of the C-shaped steel material according to any of the embodiments (2) to (5), the fastening plates 18, 24, and 27 shown in FIGS. Thereby, the same effect as that shown in the above embodiment (1) can be exerted.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view (a) and a partially broken perspective view schematically showing a connection structure of a C-shaped steel material according to an embodiment (1) of the present invention.

FIG. 2 is a partially transparent rear view (a) and a partially cutaway side view (b) schematically showing a connection structure of a C-shaped steel material according to the embodiment (1).

FIG. 3 is a partially transparent rear view (a) and a partially broken side view (b) schematically showing a state in which a fastening piece is inserted into a C-shaped steel material.

FIGS. 4A and 4B are side views schematically showing other examples of the fastening plate in the connection structure of the C-shaped steel material according to the embodiment (1).

FIGS. 5A and 5B are a plan view schematically and a perspective view schematically showing a main part of a connection structure of C-shaped steel members according to the embodiment (2).
It is.

FIGS. 6A and 6B are a partially broken plan view and a perspective view schematically showing another example of the connection structure of the C-shaped steel members according to the embodiment (2).

FIGS. 7A and 7B are a partially cutaway side view and a perspective view schematically showing another example of the connection structure of the C-shaped steel members according to the embodiment (2).

FIGS. 8A and 8B are a side view and a front view schematically showing a main part of a connection structure for C-shaped steel members according to the embodiment (3).
It is.

9A and 9B are a side view schematically and a perspective view schematically showing a main part of a connection structure of a C-shaped steel member according to an embodiment (4).
It is.

FIG. 10 is a plan view (a) and a front view (b) schematically showing a main part of a connection structure for C-shaped steel members according to Embodiment (4).

FIG. 11A is a plan view schematically showing a main part of a connection structure of a C-shaped steel member according to Embodiment (5),
(B) is a partially broken front view of the attachment piece in the connection structure as viewed from the front.

FIG. 12 is a partially exploded perspective view schematically showing a conventional connection structure of C-shaped steel materials.

[Explanation of symbols]

1, 11, 34, 35, 39, 40, 44 C-shaped steel materials 45, 50, 51, 56, 57, 62, 63 C-shaped steel materials 2, 12 Connected members 3, 13, 31, 36, 41, 46, 52, 59 connecting members 4, 14, fixing pieces 5, 15, 32, 33, 37, 38, 42 mounting pieces 43, 47, 48, 53, 54, 60, 61 mounting pieces 6, 7, 17, 25a, 32b, 33b bolt insertion holes 37b, 38b, 42b, 43b, 47b bolt insertion holes 48b, 53b, 54b, 60b, 61b bolt insertion holes 8, 20 bolts 9, 26 nuts 16, 32a, 33a, 37a, 38a, 42a, 43
a Hook pieces 47a, 48a, 53a, 54a, 60a, 61a Hook pieces 18, 24, 27 Clamping plate 18a Curved portion 18b, 18c Rectangular portion 19, 26a, 29 Screw holes 21, 22, 34a, 35a, 39a, 40a , 44a
Lip pieces 45a, 50a, 51a, 56a, 57a, 62a, 6
3a Lip piece 25 Flat plate 28 Thick part 44b Stopper 49, 55 Joint 58 H-shaped steel

Claims (10)

[Utility model registration claims] 1. A connecting member for connecting two connected members, wherein at least one of the connected members is a C-shaped steel member, wherein the fixing member is fixed to the other connected member. And a mounting piece having a bolt insertion hole at the center and a hooking piece formed at the center at one end, protruding toward the C-shaped steel material side and hooking a lip piece of the C-shaped steel material. A fastening member having a screw hole, and holding the lip piece of the C-shaped steel material between the mounting piece and the lip piece of the C-shaped steel material with the fastening plate. A connection structure for a C-shaped steel material, comprising a bolt tightened between the pieces. 2. A C-shaped steel member connecting structure for connecting two C-shaped steel materials, wherein the C-shaped steel material is attached to each C-shaped steel material, has a bolt insertion hole at a central portion, and has a C-shaped steel material side at one central portion. Protruding into the C
A connecting member in which two mounting pieces formed with hook pieces on which a lip piece of a shaped steel material is hooked have a substantially L-shaped cross section; and a screw hole, and the lip piece of the C-shaped steel material is connected to the mounting piece. And a bolt for clamping a lip piece of the C-shaped steel material between the fastening plate and the mounting piece. Connection structure. 3. Connecting two C-shaped steel materials as a purlin,
The connecting member is a connecting structure of a C-shaped steel member provided on a climbing beam, wherein an inclination of an end of each of the mounting pieces joined to the climbing beam is set according to a roof gradient. Claim 2
The connecting structure of the C-shaped steel material described in the above. 4. A connecting structure of C-shaped steel members for connecting two C-shaped steel materials, wherein the C-shaped steel material is attached to each C-shaped steel material, has a bolt insertion hole at a central portion, and has a bolt insertion hole at one end central portion. Protruding into the C
A connecting member comprising a hook piece on which a lip piece of a shaped steel material is hooked, a connecting member comprising a joint thereof, and a screw hole, wherein the lip piece of the C-shaped steel material is attached to the mounting piece. And a bolt for fastening a lip piece of the C-shaped steel material between the fastening plate and the mounting piece. . 5. The connecting structure for a C-shaped steel material according to claim 4, wherein said connecting portion has a hinge structure. 6. The C-shaped steel member connecting structure according to claim 4, wherein said connecting portion is constituted by a flat plate portion, and said mounting piece rises substantially vertically from said connecting portion. 7. The connection structure for a C-shaped steel material according to claim 1, wherein a screw hole of the fastening plate is formed by a nut. 8. The method according to claim 1, wherein a substantially central portion of the fastening plate is a thick portion, and the screw hole is formed in the thick portion. The connection structure of a C-shaped steel material according to item 1. 9. The fastening plate comprises a central curved portion, and rectangular portions on both sides for holding the lip piece of the C-shaped steel material, with a straight line passing through the center of the central curved portion as an axis. The connection structure of a C-shaped steel material according to any one of claims 1 to 8, wherein the connection structure is a line-symmetric shape. 10. The C according to claim 1, wherein the shortest width dimension of the fastening plate is shorter than a distance between opposed lip pieces of the C-shaped steel material. Connection structure of shaped steel.