KR20070025991A - Rib groove-section shape steel and fitting member for connecting the same - Google Patents

Abstract

A rib groove section steel and a connecting member thereof are provided to improve the assembly accuracy of the structure by precluding the rib groove from being lowered and twisted. A connecting member(20) of a rib groove section steel(10) is composed of rib walls(14); a side wall orthogonally connected to the rib wall; a rear wall(16) orthogonally connected to the side wall; curved parts extended to the longitudinal direction of the rib groove section steel at the rib and rear walls; a supporting member installed with combining parts placed on the surface of the rib wall and combined to the curved parts and formed with a penetration hole(26) in which a bolt(23) is inserted; and a combining member(22) installed with a contact part(25) placed on the rear side of the rib wall and contacted to the rear side of the curved part and formed with a penetration hole in which the bolt is inserted. The combining parts combined with a nut(24) are projected to the rear side of the combining member.

Description

RIB GROOVE-SECTION SHAPE STEEL AND FITTING MEMBER FOR CONNECTING THE SAME}

1 is a schematic cross-sectional view showing an example of a rib groove shaped steel of the present invention.

FIG. 2 is a perspective view of the rib groove steel having the cross section of FIG. 1; FIG.

Fig. 3 is a front view illustrating the outline of the configuration of the connecting member of the second embodiment.

4 is a cross-sectional view taken along the line X-X of FIG.

Fig. 5 is a perspective view showing an outline of an L-shaped member of the second embodiment.

6 is a perspective view showing an outline of a fastening member of a second embodiment;

Fig. 7 is a plan view showing an attachment member in a third embodiment.

8 is a front view for explaining the outline of the configuration of the width limiting member of the third embodiment;

Fig. 9 is an explanatory diagram of a connecting portion for explaining rib groove shaped steel mounted with two connecting members facing each other.

10 is a schematic cross-sectional view showing an example of a conventional rib groove shaped steel.

11 is a schematic front view illustrating a conventional connecting metal member.

12 is a schematic cross-sectional view taken along the line Z-Z of FIG.

* Explanation of symbols for main parts of drawings *

10: rib groove section steel 12: rib groove (opening)

14: rib wall 16: rear wall

18: bending portion (V groove) 20: connecting member

21: L-shaped member 22: fastening member

23: Bolt 24: Nut

25: contact portion 26: bolt hole

27, 43: coupling part 31: bottom part

32: standing part

The present invention relates to rib grooved steel and the connecting member used therein.

As shown in FIG. 10, the conventional rib groove shaped steel 100 has rib grooves 102 extending in the longitudinal direction on one side of the wide width of the rectangular steel pipe, and have a C-shaped cross section. It has high rigidity, light weight, easy processing and easy assembly, and is widely used as a structural member of steel houses such as general houses and steel buildings, for example, roofs and walls. However, in order to improve the earthquake resistance and cost reduction of buildings, the development of more rigid and lightweight ribbed grooves has been required.

By the way, the longitudinal cross-linking of a general house etc. (Basic aggregate) was comprised by arranging the rib groove beams longitudinally and laterally and welding the rib groove beams together. However, there is a problem that the torsion caused by the heat of welding is required, the coating of the welding part is required, and the skill of the welding operation is required, and the connection structure between the rib groove-shaped steels by the connecting metal member is used.

As an example of the connection metal member which connects rib ribs of the prior art, the connection metal member 110 as shown to FIG. 11 and FIG. 12 is known (refer patent document 1). The connecting metal member 110 overlaps one side of the bent piece 122 of the L-shaped metal member 120 bent into an L-shape on the rib 104 of the rib groove shaped steel 100, and the rear surface of the rib 104. The U-shaped fastening metal member 130 is attached to the side to sandwich the rib 104, and in this state, the bolt 140 and the nut 150 are fastened and fixed up and down. A bolt hole 126 is drilled in the other bent piece 124 of the L-shaped metal member 120, and the bolt hole 126 is fixed to the other rib groove steel with a bolt not shown. However, in such a connection metal member, the L-shaped metal member 120 has a problem such as rotating the fastening bolt 140 in the axis, or deviate in the longitudinal direction is not necessarily satisfactory.

[Patent Document 1] Japanese Patent No. 3207818

Accordingly, the present invention has been made to solve the above problems, and the present invention has a higher rigidity than the prior art, and its object is to provide a new rib groove shaped steel, and another object to provide a connection member suitable for such a new rib groove shaped steel. There is this.

In order to achieve the above object of the present invention, the rib groove section steel of the present invention is a cross-section consisting of a rib wall facing each other with the rib groove therebetween, a side wall connected orthogonally to the rib wall and a rear wall connected orthogonally to the side wall. A C-shaped rib groove steel, which has a bent portion extending in at least the rib wall and the rear wall in the lengthwise direction and having a V-shaped bent section protruding toward the opposite surface side of the rib wall and the rear wall, and being formed on the rib wall; The bent portion formed on the rear wall is characterized in that it is in a line symmetric position with a center line dividing the width of the side wall into two axes of symmetry.

Since the rib groove shaped steel of this invention is equipped with the bending part extended longitudinally in a rib wall and a rear wall, it can exhibit high rigidity compared with the conventional rib groove shaped steel which does not have a bending part. Therefore, if other cross-sectional dimensions other than a bent part are the same, the length of a member can be made longer. For example, when used as the transverse copper edge of a steel house, the span can be extended more than before, and a main member can be reduced. In addition, even if it is lighter than the conventional rib grooved steel by reducing the thickness, it can exhibit the same rigidity as the conventional rib grooved steel.

In the rib groove shaped steel of the present invention, the bent portion is a V groove having a V-shaped cross section, which protrudes toward the opposite surface side of the rib wall and the rear wall. The V-groove is easy to form and has an effect of reducing the shock in the longitudinal direction of the rib groove steel. In addition, the V groove is provided by protruding to the opposite surface side of the rib wall and the rear wall, and the other rib groove steel and other members can be stably connected to the surface side of the rib wall and the rear wall through the connecting member.

Further, in the rib groove steel of the present invention, the bent portion formed on the rib wall and the bent portion formed on the rear wall are at line symmetry positions with the center line dividing the width of the side wall into symmetry axes. Since the bent portion formed on the rib wall and the bent portion formed on the rear wall are in the line symmetric position with the center line dividing the width of the side wall into two symmetric axes, the connecting member described later can be commonly used on the rear wall side and the rib wall side.

The connecting member of the rib groove-shaped steel of the present invention is a cross-shaped C-shaped rib groove steel member consisting of a rib wall facing each other with a rib groove therebetween, a side wall connected orthogonally to the rib wall, and a rear wall connected orthogonally to the side wall. A connecting member freely fixed to the rib groove-shaped steel having a bend extending in the longitudinal direction to at least the rib wall and the rear wall, the coupling member being disposed on the surface of the rib wall and engaging one or more bent portions; Support member having a through hole for inserting the bolt; And a fastening member disposed on the rear surface side of the rib wall and contacting the rear surface side of the bent portion, the fastening member having a through hole into which the bolt is inserted, wherein the support member and the fastening member interpose the rib wall. The support member is fastened to the fastening member by inserting a bolt into the through hole and screwing the screw.

In the connecting member of the rib groove shaped steel of the present invention, since the engaging portion of the support member engages with the bent portion on the surface side of the rib groove steel, and the connecting member contacts the back side of the bent portion, It can be fixed firmly in position.

In the connecting member of the rib groove-shaped steel of the present invention, the supporting member is preferably an L-shaped member in which contact portions contacting the upper surface of the rib wall are perpendicular to each other. By using the L-shaped member, rib grooved steels or rib grooved steel and other members can be easily orthogonally connected.

Further, in the connecting member of the rib groove-shaped steel of the present invention, the fastening member is preferably formed by protruding a pair of engaging portions for engaging the nut in the vicinity of the through hole of the fastening member to the rear side. After joining the predetermined nut to the engaging part, the fastening member is placed on the back side of the rib wall, and a bolt is inserted from the surface side to screw the nut together so that the fastening of the supporting member and the fastening member can be performed only by the work from the surface side. have.

In addition, in the connecting member of the rib groove-shaped steel of the present invention, the support member may be made of an attachment plate coupled to the bent portion of the opposing rib wall and holding the rib groove at a predetermined width. The attachment plate and the fastening member can maintain the rib groove width with high accuracy, and deformation such as bending and warping of the rib groove member steel is suppressed, thereby improving assembly accuracy and improving assembly workability. have.

Since the structure of the longitudinal cross-section (base aggregate) using the rib groove section steel of this invention and a connection member is a fastening structure by a bolt and a nut, assembly and disassembly are easy. Therefore, it does not require the skill in the assembly work, in particular, in the temporary structure, etc. can be easily disassembled after use, the rib groove steel and the connecting member can be used again in other structures.

Further objects, features and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

Embodiments of the present invention will be described below with reference to the drawings. In addition, as for each embodiment, common code | symbol is attached | subjected and respond | corresponded to the common part, and further duplication description is abbreviate | omitted.

(First Embodiment: Rib Groove Shape Steel)

Figure 1 shows an example of the cross-sectional shape of the rib groove shaped steel of the present invention, Figure 2 shows a perspective view thereof. As shown in FIG. 1, the rib groove shaped steel 10 according to the present invention has a rib wall 14 facing each other with a rib groove 12 interposed therebetween, and a side wall 15 connected to the rib wall 14 orthogonally. It consists of the rear wall 16 orthogonally connected to the side wall 15, and has the bending part 18 extended in the longitudinal direction to the rib wall 14 and the rear wall 16 at least. In the present embodiment, the bent portion 18 is a V-shaped V-shaped groove that is easy to be formed and is strong in bending, and the V-groove 18 is formed by protruding on the opposite surface side of each of the rib wall 14 and the rear wall 16. do. The V-groove 18 is formed at the line symmetry position of the rib wall 14 and the rear wall 16 with the center line L dividing the width W1 of the side wall 15 into two symmetric axes.

In this way, the V groove 18 is formed, and the rib groove shaped steel 10 of the present invention can exhibit high rigidity as compared with the conventional rib groove shaped steel 100 without the V groove shown in FIG. Therefore, when the rib groove section steel 10 is applied to the transverse copper edge (胴 緣) of the building such as steel house, it is possible to extend the span (span) compared to the conventional rib groove section steel (100). Accordingly, it is possible to reduce the cost by reducing the main members for construction. Moreover, if the cross-sectional shape of C-type cross section is the same numerical value as a conventional product, plate | board thickness can be made thin and weight can be reduced.

In addition, since the width limiting member described later can be easily attached to a predetermined position in the longitudinal direction of the rib groove, the enlargement of the rib groove width W2 due to internal stress can be suppressed, and the buckling of the rib groove shaped steel 10 can be suppressed. Strength can be improved.

The rib groove shaped steel of this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary of this invention. For example, in this embodiment, the number of the bending parts 18 may be made into one by one in each rib part. By increasing the number of V-grooves, it is possible to further suppress the warpage and torsion and to further improve the attachment precision of the rib-groove shaped steel 10.

(Second embodiment: connecting member)

3 to 6 relate to an embodiment of the connection member of the present invention, Figure 3 is a front view of the connection member, Figure 4 is a side cross-sectional view of the connection member, Figure 5 is a perspective view of the L-shaped member, Figure 6 is a fastening A perspective view of the member is shown.

The connecting member (for example, the metallic connecting member) 20 of this embodiment is comprised by the L-shaped member 21 and the fastening member 22 which are support members, and are rib by the bolt 23 and the nut 24. Removably fixed to the groove shape steel (10). As shown in Figs. 4 and 5, the L-shaped member 21 bends a rectangular steel sheet into an L-shape to form a contact portion 25 orthogonal to each other. A bolt hole (through) is formed in the substantially center portion of each contact portion 25. Ball: 26 is perforated. Further, both edges 27 of each contact portion 25 are in the direction of contact with the rib groove steel 10, i.e., the direction of the V groove 18a of the rib wall 14 in a direction opposite to that of the L-shaped bend (Fig. 3). Bent to be coupled). In FIG. 5, the reinforcement portion 28 protrudes in a triangular weight shape at the bent portion of the L-shaped member 21.

The fastening member 22 forms a bottom portion 31 and a standing portion 32 by bending a rectangular steel sheet in a channel shape. A bolt hole 33 is drilled in the substantially center portion of the bottom portion 21. In addition, both side edges 34 of the standing portion 32 are face-treated so as to be in contact with the side surface 18b (see FIG. 3) of the V-groove 18 protruding toward the rear surface side of the rib wall 14, and the standing portion 32 Is made of a contact portion of the fastening member 22. In addition, a pair of cutting protrusions 35 (see FIG. 3) centering on the bolt holes 33 are formed on both rear surfaces of the bolt holes 33 of the bottom part 31. The pair of cutting protrusions 35 is composed of a fixing part for integrally fixing the nut 24 for screwing the bolt 23 to the fastening member 22.

Next, the operation of the connecting member 20 having the configuration as described above will be described.

First, the nut 24 is integrally fixed to the rear surface side of the fastening member 22 through the cutting protrusion 35. In this state, the fastening member 22 is inserted from the rib groove 12 at a predetermined position in the longitudinal direction of the rib groove shaped steel 10 and disposed on the rear surface side of the rib wall 14.

The standing part 32 of the fastening member 22 arrange | positioned in this way is a substantially pedestal-shaped as shown in FIG. 3, and as mentioned above, both inclined sides (side sides) 34 are inclined surfaces 18b of the V groove 18. As shown in FIG. The position in the widthwise direction of the fastening member 22 can be precisely positioned by contacting.

Next, one side contact portion 25 of the L-shaped member 21 so that the center line of the bolt hole 26 and the center line of the bolt hole 33 of the fastening member 22 arranged as described above coincide with the upper surface of the rib wall 14. ). At this time, both edges 27 of the contact portion 25 are arranged to engage the inclined surface 18a of the V groove 18 formed in the rib wall 14.

Subsequently, the contact portion 25 and the fastening member 22 of the L-shaped member 21 arranged in this way are supported via the rib wall 14 to penetrate the bolt 23 through the bolt holes 26 and 33. To the nut (24). As a result, both edges 27 of the contact portion 25 of the L-shaped member 21 are formed with the width of the rib groove 12 along the inclined surface 18a of the V groove 18 formed in each rib wall 14. While fixing the W2 (see FIG. 1) in the narrowing direction, the rib portion 12 along the inclined surface 18b of the back surface side of the V groove 18 to which the standing portion 32 of the fastening member 22 corresponds. The rib wall 14 is firmly interposed and supported by the contact portion 25 and the fastening member 22 of the L-shaped member 22 because it contacts in the direction of extending the width W2 of the rib member. The width W2 can be maintained with high precision. Accordingly, since deformation such as bending and warping of the rib groove steel is suppressed, the attachment accuracy is improved and the workability is improved, and a structure of high precision can be realized.

Then, by engaging the rib groove steel or other members not shown in the drawing to the other contact portion 25 '(see Fig. 3) of the L-shaped member 21, the rib groove steels or the rib groove steel and the other members can be connected orthogonally. have.

In this embodiment, the fastening member 22 constituting the connecting member is configured to be inserted into the rear surface side of the rib wall 14 through the rib wall opening (rib groove) 12 of the rib groove shaped steel 10. To form the cutting protrusion 35 on the back side of the bottom portion 31 of the fastening member 22 is made to hold the nut 24. Therefore, the hassle of placing the fastening member and the nut through the rotation of the hand on the back side does not occur.

(Third Embodiment: Width Limiting Member)

The second embodiment described above mainly uses an L-shaped member suitable as a connecting member that connects rib groove shaped steels or rib grooved steels and other steel frames by orthogonal coupling. However, by changing the L-shaped member of the connecting member to the attachment plate as described below, the rigidity of the rib groove shaped steel 10 is further increased by forming the width limiting member for connecting the opposing rib walls with the rib groove therebetween. Can be increased.

As described above, the third embodiment of the present invention is a width limiting member. 8 is a schematic front view illustrating the width limiting member 40. The width limiting member 40 replaces the supporting member disposed on the rib wall 14 of the rib groove shaped steel 10 in the connecting member 20 with an L-shaped member 21 to attach the plate 41 shown in FIG. It is the same structure as the said connection member 20 except having made it. That is, the width limiting member 40 consists of the attachment plate 41 and the fastening member 22, and is freely fixed to the rib groove shaped steel 10 with a bolt 23 and a nut 24.

The attachment plate 41 has a through hole 42 through which the bolt 23 penetrates in a substantially central portion thereof, and both edge portions 43 of the attachment plate 41 are contact portions of the L-shaped member 21. In the same manner as in 25, it is bent to engage with the V groove surface 18a (see Fig. 8) of the rib groove steel 10. The attachment plate 41 is formed by protruding the reinforcing portion 44 in the opposite direction to both edge portions 43.

In the width limiting member 40, the fastening member 22 is common to the case of the connecting member 20, and the width limiting member 40 is the rib wall 14 by the attachment plate 41 and the fastening member 22. And the width W2 of the rib groove 12 of the rib groove mold steel 10 can be firmly fixed with high precision. Accordingly, the rigidity of the rib groove shaped steel 10 can be further increased. As a result, the occurrence of warpage and warpage of the rib groove steel 10 as a structural member can be less suppressed, and a structure having high dimensional accuracy can be realized.

For example, by arranging the plurality of width limiting members 40 at the proper positions of the rib grooves of the rib groove steel to improve the seismic resistance, it is possible to reduce the concentrated load generated by the earthquake and prevent the rib groove steel from buckling. Can be.

The connection member of this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary of this invention. For example, in the second embodiment, the L-shaped member and the fastening member are used to project rib joint grooves orthogonally to the rib wall side on the rib wall side. However, a bolt hole is drilled in the rear wall 16 of the rib groove steel. The L-shaped member 21 'may be disposed on the rear surface to be fastened with a bolt and a nut without using the fastening member.

Fig. 9 is a view of the rib groove shaped steel 10 having the connecting member 21 attached to the rib wall 14 side and the L-shaped member 21 'attached to the rear wall 16 viewed from the cross-sectional side. The L-shaped member 21 'is fastened to the rear wall 16 with an integral bolt, but since the L-shaped member 21' is engaged with the V groove 18 in the engaging portion 27, it does not generate a positional change such as rotation and so on at a predetermined position. Can be fixed The structure shown in Fig. 9 can be adapted to, for example, a general house or the like suitable for the structure of the substrate around the siding and the chassis.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the rib groove shaped steel of the present invention can be suitably used as structural members such as steel houses and steel structures, and the connecting member of the present invention is for connecting rib groove shaped steels or rib grooved steel with other members. It is suitable as a connecting device for steel aggregate. It is especially suitable as a base material of copper-coated aggregates, such as a general house and a steel house.

Claims (5)

A rib groove section steel having a C-shaped cross section comprising an rib wall facing each other with a rib groove interposed therebetween, a side wall connected orthogonally to the rib wall, and a rear wall connected orthogonally to the side wall. At least the rib wall and the rear wall are provided with a V-shaped bent section extending in the longitudinal direction and protruding toward the opposite surface side of the rib wall and the rear wall, The bent portion formed on the rib wall and the bent portion formed on the rear wall are located in line symmetry with the center line dividing the width of the side wall into symmetry axes. Ribbed groove steel. In the rib-shaped C-shaped rib groove section steel having a rib wall facing each other with a rib groove interposed therebetween, a side wall connected orthogonally to the rib wall, and a rear wall connected orthogonally to the side wall, the rib groove at least on the rib wall and the rear wall. A connecting member fixed freely to a rib groove shaped steel having a bent portion extending in the longitudinal direction of the shaped steel, A support member disposed on a surface of the rib wall, the coupling member engaging with at least one of the bent portions, and having a through hole for inserting a bolt; And A fastening member disposed on the rear surface side of the rib wall and having a contact portion contacting the rear surface side of the bent portion, and having a through hole into which the bolt is inserted. Including; The support member and the fastening member are supported with the rib wall therebetween, and the bolt is inserted into the through hole to screw the screws to fasten the support member and the fastening member. Connecting member of rib groove section steel. The method of claim 2, The support member The contact surfaces in contact with the upper surface of the rib wall are L-shaped members perpendicular to each other. Connecting member of rib groove section steel. The method of claim 2, The fastening member is A pair of engaging portions for engaging the nut in the vicinity of the through hole of the fastening metal member is formed to protrude to the rear surface side. Connecting member of rib groove section steel. The method of claim 2, The support member An attachment plate coupled to the bent portion of the opposite rib wall and holding the rib groove at a predetermined width; Connecting member of rib groove section steel.

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