JPH11131644A - Connecting structure of hollow structural material for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure of a hollow structural material for building by which a hollow structural material is firmly connected to a material to be connected, and also stable connecting force can be exhibited. SOLUTION: A connecting plate is superposed on the outside of one outer wall part of opposite outer wall parts of a hollow structural material 3, the base end of a fastener 4A passing through an insert hole of the connecting plate is fixed to one outer wall part 31 of the hollow structural material, the middle part of the fastener 4A is positioned in the hollow part 33 of the hollow structural material, and the tip of the fastener 4A is fixed to the outer wall part 32 of the hollow structural material. Further, the fasteners 4 are crowed near the corner part of an L-shaped connecting plate 8 to connect the hollow structural material 3 to the material 2 to be connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure of a hollow structural member for a building in which a hollow structural member is connected to a member to be connected using a connecting plate and a fastener.

[0002]

2. Description of the Related Art Conventionally, when a column (a hollow steel member having a rectangular cross section) a such as a handrail or a partition frame is connected to a horizontal member b, as shown in FIG. The support column a is erected, and the L-shaped connection plate d having the insertion hole c is overlapped on the connecting portion between the horizontal member b and the support column a. The screw e is inserted and screwed to the connecting plate d, and the stopper e is inserted into the insertion hole c of the connecting plate d located on the side of the horizontal member b to be screwed to the horizontal member b. Was. The stopper e that is screwed to the support a is screwed only to the outer wall a1 on the side where the connecting plate d overlaps, of the opposing outer walls a1 and a2 of the support a. Is located in the hollow part a3 of the support column a.

[0003]

However, since the thickness of the hollow structural member used as the column a is thin, the stopper e is fixed to the outer wall portion a1 of the column a, and the connecting plate d is fixed to the column a. In addition, when the fixing force is weakened and an external force is applied to the column a due to seismic force or the like, as shown by a two-dot chain line and an arrow in FIG. Therefore, there is a problem that the strength of the building structure is reduced. The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a structure for building capable of firmly connecting hollow structural members and exhibiting a stable connecting force. An object of the present invention is to provide a connection structure for hollow structural members.

[0004]

According to a first aspect of the present invention, there is provided a connecting structure of a hollow structural member for a building, comprising: a stopper; and a connecting plate having a through hole for the stopper. According to this, in the connection structure of the hollow structural member for construction configured to connect the hollow structural member to the connected member, the connecting plate is overlapped on the outer side of one of the outer wall portions among the opposing outer wall portions of the hollow structural member. Fixing the base end of the stopper to one outer wall of the hollow structural member, positioning the intermediate portion of the stopper in the hollow portion of the hollow structural member, and connecting the distal end of the stopper to the other outer wall of the hollow structural member. It is characterized by being fixed to a part.

According to a second aspect of the present invention, there is provided a connecting structure of a hollow structural member according to the first aspect, wherein a plurality of insertion holes are provided in an L-shaped connecting plate body, and these holes are inserted. The holes are densely formed near the corners of the connecting plate body to form a connecting plate, and a fastener is inserted into each of the densely inserted holes to connect the hollow structural member at right angles to the material to be connected. Things.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a handrail A in which a connection structure of a hollow structural member for a building is adopted. Handrail A
Is an upper horizontal member 1, a lower horizontal member (an example of a connected member) 2 fixed to a floor material F of a building, and a plurality of upper horizontal members 1 and 2 disposed between the upper and lower horizontal members 1 and 2. The support 3 (an example of a hollow structural material) 3. The strut 3 is made of a hollow steel material having a square cross section and appropriately cut into dimensions.

The upper and lower horizontal members 1 and 2 have grooves 10 and 20 and are made of a steel material having a U-shaped cross section which is cut to an appropriate size. That is, the upper horizontal member 1 is configured by vertically suspending a pair of side plates 12 from both sides of the upper plate portion 11, and the lower horizontal member 2 is formed by standing a pair of side plates 22 from both sides of the lower plate portion 21. It is configured.

The upper end of the column 3 is fitted into the groove 10 of the upper horizontal member 1, and the upper end of the column 3 is fixed to the side plate portion 11 of the upper horizontal member 1 with the stopper 4, so that the upper horizontal member 3 posts on 1
Are connected. Also, an intermediate member 5 is fixed to the upper plate portion 11 of the upper horizontal member 1, and a cap 7 is fixed on the intermediate member 5 with an adhesive 6.

As shown in FIGS. 1 and 2, the column 3 is provided on the lower horizontal member 2 with a connecting plate 8 and a stopper (tapping screw) 4.
A, 4B. The connecting plate 8
A plurality of insertion holes 84 and 85 are formed in each of the bent plate portions 82 and 83 of an L-shaped connection plate body 81 formed by bending a metal plate at 90 °.
4 and 85 are arranged close to the corner 86 of the connecting plate body 81. In the connection plate 8 shown in FIG.
A pair of insertion holes 84 and 85 are formed, and two pairs of the insertion holes 84 and 85 are closely packed near the corner 86.

The column 3 is vertically erected on the lower horizontal member 1, and the lower end of the column 3 is fitted into the groove 20 of the lower horizontal member 2. The connecting plate 8 is provided at a connecting portion between the lower end of the column 3 and the lower horizontal member 2. That is, FIG.
As shown in FIG. 3, one of the pair of outer wall portions 31 and 32 of the column 3 facing each other in the length direction of the lower horizontal member 2 has one bent plate of the connection plate 8 on the outer surface of one outer wall portion 31. The other bent plate portion 83 of the connection plate 8 is stacked on the upper surface of the lower plate portion 21 of the lower horizontal member 2.

As shown in FIG. 2, the stopper 4A passes through the insertion hole 84 of the bent plate portion 82 of the connecting plate 8, and
Are screwed to the pair of outer wall portions 31 and 32. That is,
The distal end of the screw portion 41A of the stopper 4A penetrates one outer wall 31 of the support 3 and is screwed to the other outer wall 32 of the support 3 so that the proximal end of the screw 41A of the stopper 4A becomes a support. 3 is screwed to one outer wall portion 31, and an intermediate portion of the screw portion 41 </ b> A of the stopper 4 </ b> A is located in the hollow portion 33 of the column 3. As shown in the figure, the screw portion 41A of the stopper 4A has a length such that the screw portion 41A can penetrate the column 3 and the tip of the screw portion 41A can completely penetrate the other outer wall portion 32 of the column 3. The dimensions have been set.

As described above, the stopper 4A is fixed to the outer wall portions 31 and 32 of the support column 3 in a state where the proximal end and the distal end of the screw portion 41A are screwed together. The movement is restricted, and the stopper can be prevented from swinging as in the above-described conventional example. Further, since the position where the support 3 is fixed to the outer wall portions 31 and 32 is separated only by the hollow portion 33 of the support 3, the force for controlling the movement of the tip of the stopper 4A is increased. Moreover,
Since the dimension of the hollow portion 33 is constant, the force for regulating the tip of the stopper 4A can be stabilized. Further, the depth of screwing of the stopper 4A into the outer wall portion of the column 3 is twice as large as that of the related art, so that the stopper 4A is less likely to wobble.

As shown in FIG. 2, the stopper 4B is screwed into the lower plate 21 and the floor F of the lower horizontal member 2 through the insertion hole 85 of the bent plate 83 of the connecting plate 8. The bent plate portion 83 of the connecting plate 8 is fixed to the lower plate portion 21 of the lower horizontal member 2, and the lower horizontal member 2 is fixed to the floor member F.

Further, as shown in FIG. 2, the stoppers 4A and 4A are located near corners formed by connecting the columns 3 and the lower horizontal members 2.
The denseness of 4B also increases resistance to external forces. For example, when an external force acts in a direction indicated by a white arrow in FIG. 2, the bending moment increases as the position approaches the joint between the column 3 and the lower cross member 2, but the bending moment is effective against this force. As the fasteners 4, 4A and 4B, various types commonly used in the field of construction other than tapping screws can be considered.

[0015] The connecting structure of the hollow structural material for building of the present invention is
It is also used when connecting the studs (hollow structural material) of the partition frame of the partition wall to the upper and lower horizontal members (connected members).

[0016]

As described above, according to the connecting structure of the hollow structural member for construction according to the first aspect of the present invention, the stopper is unlikely to be loosened even when seismic force or the like is applied, and the hollow structural member is firmly fixed. Can be connected, and a stable connecting force can be obtained.
The number of work steps does not increase, and the workability does not decrease.

Further, according to the connecting structure of the hollow structural member for construction according to the second aspect of the present invention, the stoppers are densely arranged at the connecting portion between the hollow structural member and the connected member, thereby further increasing the resistance against external force. Can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a connection structure of a hollow structural member for a building according to the present invention.

FIG. 2 is a sectional view showing an embodiment of the same structure.

FIG. 3 is a perspective view showing a connection plate having the same structure.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 2 Connected material (lower horizontal member) 3 Hollow structure material (post) 31 One outer wall portion of hollow structure material 32 The other outer wall portion of hollow structure material 33 Hollow portion of hollow structure material 4A Stopper 8 Connection plate 81 Connection Plate body 84 Insertion hole 86 Corner of connecting plate

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masami Sugihara 1-1-88 Oyodonaka, Kita-ku, Osaka City Inside Sekisui House Co., Ltd. (72) Mikitaka Nakabayashi 1-1-1, Oyodonaka, Kita-ku, Osaka City No. 88 Sekisui House Co., Ltd.

Claims (2)

[Claims] 1. A connecting structure of a hollow structural member for building, wherein a connecting member having a hole and a connecting plate having an insertion hole for the connecting member connects the hollow structural member to a member to be connected. Of the opposed outer wall portions, the connecting plate is overlapped on the outside of one outer wall portion, and the base end of the stopper is fixed to one outer wall portion of the hollow structural member, and the middle portion of the stopper is formed of the hollow structural member. A connection structure for a structural hollow structural material, wherein the structural member is located in a hollow portion, and a tip of a stopper is fixed to the other outer wall portion of the hollow structural material. 2. An L-shaped connection plate main body having a plurality of insertion holes, and the insertion holes are formed close to a corner of the connection plate main body to form a connection plate.
The connecting structure of a hollow structural member for a building according to claim 1, wherein a fastener is inserted into each of the densely inserted holes to connect the hollow structural member to the connected member at right angles.