JP7232706B2 - Column-beam connection structure and roof structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a column-to-beam connection structure and a roof structure.

2. Description of the Related Art Conventionally, there has been known a column-beam connection structure provided with a connection member that connects the column and the beam (see, for example, Patent Literature 1). In the connection structure of the pillar and the beam of Patent Document 1, the connection member is formed in an L shape and arranged inside the pillar and the beam. The connection member includes a rectangular tubular vertical member extending in the vertical direction, and a rectangular tubular horizontal member extending in the horizontal direction from the upper end of the vertical member. Steel pipes made by bending flat steel plates are used as vertical members. The vertical member has a longitudinally extending first surface having a recessed cutout portion at the upper end, a longitudinally extending second surface facing the first surface, and a pair of longitudinally extending side surfaces. ing. The horizontal member is arranged in the notch portion of the first surface in the middle in the longitudinal direction, with the end face on the one end side in the longitudinal direction facing the second surface. Further, M-shaped bent portions are formed on a pair of side surfaces of the vertical member, and the vertical member is welded to the side surfaces of the horizontal member at the M-shaped bent portions.

Japanese Patent No. 6231962

In a connection structure between a column and a beam, it is required to ensure connection strength in order to connect the column and the beam. On the other hand, when an M-shaped bent portion is formed on the side surface of the vertical member and the M-shaped bent portion is joined to the side surface of the horizontal member by welding, the bending for forming the M-shaped bent portion is performed. Processing is required, the process of bending is complicated, and the cost of equipment investment for performing the bending is high.
Therefore, regarding the connection structure of columns and beams, it is required to ensure connection strength while suppressing capital investment costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a column-to-beam connection structure capable of securing connection strength while suppressing capital investment costs.

The present invention comprises a pillar (for example, a pillar 2 to be described later), a beam (for example, a beam 4 to be described later) extending from the upper end of the pillar in a direction intersecting the pillar, and a beam disposed inside the pillar and the beam. A pillar-beam connection structure (for example, a connection structure 50 to be described later) comprising a connection member (for example, a connection member 5 to be described later) that connects the pillar and the beam, wherein the connection member extends in a vertical direction A tubular vertical member extending in a vertical direction T (for example, described later), and a tubular horizontal member extending in a horizontal direction (for example, a vertical tubular portion 51 described later) crossing the vertical member from the upper end of the vertical member (for example, a horizontal cylindrical portion 52 described later), and the vertical member has a recess (for example, a notch portion 512a described later) on the first surface (for example, a front plate 512 described later) at the upper end. A through slit (for example, a through slit 513a to be described later) penetrating the second surface (for example, a rear plate 513 to be described later) is formed in a second surface (for example, a rear plate 513 to be described later) that is formed and faces the first surface, and the horizontal member is , one end in the longitudinal direction is arranged at a position close to the through-slit, a middle part in the longitudinal direction is arranged in the recess, and a middle part in the longitudinal direction of the horizontal member is located in the recess with the vertical member. A first portion (for example, one end portion 523a described later) at one longitudinal end portion of the horizontal member that is joined relates to a connection structure between a column and a beam that is joined to the vertical member at the through slit.

Moreover, it is preferable that a second portion (for example, one end portion 522a described later) at one longitudinal end portion of the horizontal member is joined to the vertical member on the inner surface of the second surface.

Further, one or both of the vertical member and the horizontal member are configured by combining and joining a plurality of plate members (for example, L-shaped plate members 511 and 521 and a U-shaped plate member 525, which will be described later). is preferred.

In addition, the vertical member has a pair of side surfaces (for example, side plates 514 to be described later) that extend along the longitudinal direction of the horizontal member and are arranged to face each other, and one end of the horizontal member in the longitudinal direction. It further comprises a top surface reinforcing member (for example, a reinforcing plate 53 to be described later) that is disposed on the top surface of the side member and is disposed between the pair of side surfaces of the vertical member, and the top surface reinforcing member is disposed on the horizontal member. It is preferable that both ends in the width direction of the horizontal member are joined to the inner surfaces of the pair of side surfaces, respectively, while being joined to the upper surface.

The present invention also relates to a roof structure (for example, shelter 1 described later) including the connection structure of columns and beams, and a roof body (for example, roof body 6 described later) connected to the beams.

ADVANTAGE OF THE INVENTION According to this invention, the connection structure of a column and a beam which can ensure connection strength can be provided, suppressing the cost of capital investment.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which looked at the shelter which concerns on 1st Embodiment of this invention from the diagonal upper side. It is a longitudinal cross-sectional view which shows the connection structure of the support|pillar of 1st Embodiment, and a beam. It is a perspective view which shows the connection structure of the support|pillar of 1st Embodiment, and a beam. It is an exploded perspective view of the connection structure of the support|pillar of 1st Embodiment, and a beam. It is a longitudinal cross-sectional view which shows the connection part of the connection structure of a support|pillar and a beam of 1st Embodiment. It is a perspective view which shows the joint part of the connection structure of the support|pillar of 1st Embodiment, and a beam. It is a figure which shows the joint part of the back side of the connection structure of the support|pillar of 1st Embodiment, and a beam. It is a perspective view which shows the connection structure of the support|pillar of 2nd Embodiment, and a beam. It is an exploded perspective view of the connection structure of the support|pillar of 2nd Embodiment, and a beam. It is a longitudinal cross-sectional view which shows the connection part of the connection structure of the support|pillar of 2nd Embodiment, and a beam. It is a figure which shows the joint part of the back side of the connection structure of the support|pillar of 2nd Embodiment, and a beam.

A first embodiment of a shelter 1 as a roof structure of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a shelter 1 according to a first embodiment of the present invention, viewed obliquely from above. FIG. 2 is a vertical cross-sectional view showing a connection structure 50 between the support 2 and the beam 4 of the first embodiment.

In this embodiment, an example in which the roof structure is applied to the shelter 1 will be described. In addition, although the example which applied the roof structure to the shelter 1 is demonstrated, it is not limited to this. For example, the roof structure may be applied to structures other than shelters, such as carports, bicycle parking lots, rest areas, terraces, and bus stops.

In addition, in description of this embodiment, the longitudinal direction of the roof body 6 is also called front-back direction. In the longitudinal direction of the roof body 6, the left front side of the shelter 1 in FIG. 1 is also called the front side, and the right back side of the shelter 1 is also called the rear side. Moreover, the direction orthogonal to the longitudinal direction of the roof body 6 is also called the left-right direction. In the horizontal direction of the roof body 6, the left back side of the shelter 1 in FIG. 1 is also called the left side, and the right front side of the shelter 1 is also called the right side.

First, the overall structure of the shelter 1 of this embodiment will be described. As shown in FIG. 1, the shelter 1 of this embodiment has a so-called one-sided support structure in which a roof body 6 is supported on the left side (one side) in the left-right direction by two struts 2 . In addition, the shelter 1 of the present embodiment has a suspension structure in which two beams 4 are suspended from the roof body 6 via a plurality of suspension fittings 41 .

As shown in FIGS. 1 and 2, the shelter 1 of this embodiment includes two supports 2 (pillars) erected on the ground, a support side box 3 arranged on the side of the support 2, Two beams 4 extending from the upper end of the support 2 in a direction crossing the support 2, an L-shaped connection member 5 (see FIG. 2) connecting the support 2 and the beam 4, and and a plurality of hanging fittings 41 (hanging fittings) arranged between the beams 4 and the roof body 6.

Two pillars 2 (pillars) are arranged on the left side (one side) of the shelter 1 in the horizontal direction. The strut 2 is formed of an extruded aluminum material and has a hollow structure having a hollow section with a hollow shape. The pillar 2 is formed to extend in the vertical direction.

As shown in FIG. 2, the support 2 is arranged so as to cover a support-side hollow portion 21 having a hollow portion with a rectangular tubular cross section and both side surfaces of the support-side hollow portion 21 in the left-right direction. and a support post cover member 22 . The column cover members 22 are arranged on both side surfaces of the column 2 in the front-rear direction so as to cover the screw members 101 that fix the column 2 and the connection member 5 .

The two beams 4 are arranged side by side with a gap in the longitudinal direction of the roof body 6, as shown in FIG. The two beams 4 each extend in the left-right direction and are formed with a slight downward slope toward the support 2 side. The base end side (left side) of the beam 4 where the support 2 is arranged is connected to the upper end of the support 2 via an L-shaped connecting member 5, as shown in FIG. Lifting fittings 41 are connected to the lower surfaces of the two beams 4 on the base end side (left side) and the tip side (right side). As shown in FIG. 1, a total of four suspension fittings 41 are provided for two beams 4, two for each beam 4. As shown in FIG. The roof body 6 is connected to the beams 4 by being suspended from the two beams 4 via four hanging hardware 41 .

The roof body 6 is disposed with a slight downward slope in the left-right direction from the tip side (right side, other side) opposite to the support 2 toward the support 2 side (left side, one side). As shown in FIG. 1, the roof body 6 includes a rectangular frame body 61, a plurality of intermediate arches 62 (intermediate members) arranged in the front-rear direction inside the frame body 61, and a frame body. and a plurality of panel members 63 arranged inside the 61 .

Next, the connection structure 50 between the support 2 and the beam 4 will be described. FIG. 3 is a perspective view showing the connection structure 50 between the column 2 and the beam 4 of the first embodiment. FIG. 4 is an exploded perspective view of the connection structure 50 of the column 2 and the beam 4 of the first embodiment. FIG. 5 is a vertical cross-sectional view showing the connection points of the connection structure 50 of the support 2 and the beam 4 of the first embodiment. FIG. 6 is a perspective view showing a joint portion of the connection structure 50 of the column 2 and the beam 4 of the first embodiment. FIG. 7 is a view showing joints on the back side of the connection structure 50 of the support 2 and the beam 4 of the first embodiment.

In the description of the connection structure 50 of the column 2 and the beam 4 of the present embodiment, the vertical direction in which the vertical tubular portion 51 extends is also referred to as a vertical direction T, and the direction intersecting the vertical direction T and in which the horizontal tubular portion 52 extends is Also referred to as lateral direction Y. A width direction that intersects the vertical direction T and the horizontal direction Y is also referred to as a width direction H. In the present embodiment, the horizontal direction Y is the direction in which the horizontal tubular portion 52 extends, and is the direction in which the horizontal tubular portion 52 slightly ascends from the distal end side to the proximal end side.

The connection structure 50 of the support 2 and the beam 4 includes the support 2, the beam 4, and the connection member 5, as shown in FIG. The connection member 5 is arranged inside the column 2 and the beam 4 and connects the column 2 and the beam 4 . The connection member 5 is formed in an L shape as a whole when the shelter 1 is viewed in the longitudinal direction, and has a cylindrical cross section.

As shown in FIG. 3 , the connecting member 5 includes a tubular vertical tubular portion 51 (vertical member) extending in the vertical direction T and a horizontal direction Y extending from the upper end of the vertical tubular portion 51 to intersect the vertical tubular portion 51 . It has a tubular horizontal tubular portion 52 (horizontal member) and a reinforcing plate 53 (upper surface reinforcing member).

The vertical tubular portion 51 is formed in a hollow square tubular shape and arranged inside the support column 2 . As shown in FIGS. 3 and 4, the vertical tubular portion 51 is formed by combining a pair of L-shaped plate members 511, 511 that extend in the vertical direction T and have an L-shaped cross section in a reversed state in the circumferential direction. It is composed by being joined. As shown in FIG. 4, the pair of L-shaped plate members 511, 511 each have a bent piece 511a formed at one end in the circumferential direction. The bent piece 511a is formed by bending inward at one circumferential end of the L-shaped plate member 511 and extends in the longitudinal direction T. As shown in FIG. The L-shaped plate members 511, 511 are formed, for example, by bending flat steel plates.

As shown in FIG. 4, the pair of L-shaped plate members 511, 511 has an overlap margin 511c in the combined state. The overlapping margin 511c is formed in a state in which the bending piece 511a on the one circumferential end side of one L-shaped plate member 511 is arranged on the inner surface of the other circumferential end portion 511b of the other L-shaped plate member 511. The bending piece 511a on the side of the side and the other end portion 511b are overlapped and formed to extend in the vertical direction T. As shown in FIG.

In the overlapping margin 511c, the pair of L-shaped plate members 511, 511 has a bent piece 511a at one end in the circumferential direction disposed inside, and an end surface of the other end 511b in the circumferential direction is exposed to the outside. They are joined to each other in a state where they are combined so as to do so. In the overlapping margin 511c, the end face extending in the longitudinal direction T of the other circumferential end portion 511b of one L-shaped plate member 511 is separated from the other L-shaped plate member 511 at a plurality of welding points 511d spaced apart in the longitudinal direction T. is welded to the bent portion of the bent piece 511a.

As shown in FIGS. 3 and 4, the vertical tubular portion 51 has a front plate 512 (first surface), a rear plate 513 (second surface), and a pair of side plates 514, 514 (side surfaces). .
The front plate 512 is formed in a plate shape extending in the vertical direction T. As shown in FIG. The front plate 512 is formed with a U-shaped notch 512a (recess) recessed downward at the upper end.

The back plate 513 is arranged to face the front plate 512 while being separated from the back side of the front plate 512 in the lateral direction Y. As shown in FIG. The back plate 513 is formed in a plate shape having a width in the width direction H and extending in the longitudinal direction T. As shown in FIG. As shown in FIG. 5, the back plate 513 is formed with a through slit 513a that penetrates in the thickness direction and extends in the width direction H with a predetermined width S1. In this embodiment, the width S1 of the through slit 513a of the vertical tubular portion 51 is slightly smaller than the thickness T1 of the one end portion 523a in the longitudinal direction (horizontal direction Y) of the lower surface plate 523 (described later) of the horizontal tubular portion 52. formed large at One end portion 523a in the longitudinal direction (horizontal direction Y) of the lower surface plate 523 (described later) of the horizontal cylindrical portion 52 is arranged to face the through slit 513a, and when viewed from the rear side, has a thickness T1 in the thickness direction. are arranged so as to be within the width S1 of the through slit 513a.

The pair of side plates 514 , 514 respectively extend from both ends in the width direction H of the front plate 512 toward the rear side. The pair of side plates 514 , 514 are formed in plate shapes extending in the longitudinal direction (lateral direction Y) of the lateral cylindrical portion 52 with a predetermined width and extending in the longitudinal direction T. As shown in FIG. The pair of side plates 514, 514 are arranged facing each other.

The horizontal tubular portion 52 is formed in a hollow square tubular shape and arranged inside the beam 4 . As shown in FIGS. 3 and 4 , the horizontal tubular portion 52 extends from the upper end portion of the vertical tubular portion 51 in the horizontal direction Y intersecting the longitudinal direction of the vertical tubular portion 51 . The horizontal tubular portion 52 has one end connected to the upper end of the vertical tubular portion 51 and extends linearly so as to be slightly upwardly inclined from one end toward the other end. In this embodiment, as shown in FIG. 7, the end surface 520 on the one end side of the horizontal tubular portion 52 is arranged at a position where the entire area of the end surface 520 is in contact with or close to the inner surface of the back plate 513 of the vertical tubular portion 51. , with respect to the imaginary end surface K extending perpendicularly to the lateral direction Y, is inclined at an angle α according to the inclination angle of the horizontal tubular portion 52 . For example, in this embodiment, the angle α is set to about 2°.

As shown in FIGS. 3 and 4, the horizontal cylindrical portion 52 is formed by combining a pair of L-shaped plate members 521, 521 that extend in the horizontal direction Y and have an L-shaped cross section in a reversed state in the circumferential direction. It is composed by being joined. Each of the pair of L-shaped plate members 521, 521 has a bent piece 521a formed on one end side in the circumferential direction. The bent piece 521a is bent inwardly of the L-shaped plate member 521 and extends in the horizontal direction Y. As shown in FIG. The L-shaped plate members 521, 521 are formed, for example, by bending flat steel plates.

As shown in FIG. 4, the pair of L-shaped plate members 521, 521 has an overlap margin 521c in the combined state. The overlapping margin 521c is formed by bending the bent piece 521a on the one circumferential end side of one L-shaped plate member 521 to the inner surface of the other circumferential end portion 521b of the other L-shaped plate member 521. The bending piece 521a on the side of the side and the other end portion 521b are overlapped and formed to extend in the horizontal direction Y. As shown in FIG.

In the overlap margin 521c, the pair of L-shaped plate members 521, 521 has a bent piece 521a at one end in the circumferential direction disposed inside, and an end surface of the other end 521b in the circumferential direction is exposed to the outside. They are joined to each other in a state where they are combined so as to do so. In the overlapping margin 521c, the end face extending in the horizontal direction Y of the other circumferential end portion 521b of one L-shaped plate member 521 overlaps the other L-shaped plate member 521 at a plurality of welding points 521d spaced apart in the horizontal direction Y. is welded to the bent portion of the bent piece 521a.

The horizontal tubular portion 52 has an upper surface plate 522 forming an upper surface, a lower surface plate 523 forming a lower surface, and a pair of side plates 524, 524 forming side surfaces.
As shown in FIG. 6 , one longitudinal end portion 522 a (second portion) of the upper surface plate 522 abuts or approaches the inner surface of the rear plate 513 on the end surface 520 on the one end side in the horizontal direction Y of the horizontal cylindrical portion 52 . One end 523a (first portion) of the lower surface plate 523 in the longitudinal direction (horizontal direction Y) is arranged at a position close to the through slit 513a. In addition, the horizontal tube portion 52 has a cutout portion 512a in the middle in the horizontal direction Y. As shown in FIG.

In the present embodiment, "the position where one end 522a in the longitudinal direction of the upper plate 522 abuts on or is close to the inner surface of the rear plate 513" means that the horizontal tubular portion 52 and the vertical tubular portion 51 can be joined by welding. 2) means a position where one end portion 522a of the upper plate 522 of the horizontal tubular portion 52 is in contact with or close to the inner surface of the rear plate 513. As shown in FIG. In addition, “a position close to the through slit 513a” means that one end portion 523a of the lower surface plate 523 of the horizontal tubular portion 52 is positioned close to the through slit 513a to such an extent that the horizontal tubular portion 52 and the vertical tubular portion 51 can be joined by welding. Means close proximity.

As shown in FIGS. 5 to 7, the horizontal tubular portion 52 described above is joined to the vertical tubular portion 51 by welding as follows.
One longitudinal end portion 522a of the upper plate 522 of the horizontal tubular portion 52 is joined to the inner surface of the rear plate 513 of the vertical tubular portion 51 by welding. One longitudinal end portion 522a of the upper plate 522 of the horizontal tubular portion 52 is joined by fillet welding, for example, by adding a weld metal from above the inner surface of the rear plate 513 of the vertical tubular portion 51 .
One end portion 523a in the longitudinal direction of the lower surface plate 523 of the horizontal tubular portion 52 is welded to the vertical tubular portion 51 in the through slit 513a by adding a weld metal from the back side so as to fill the through slit 513a. be.
A midway portion in the longitudinal direction of the horizontal tubular portion 52 is welded to the vertical tubular portion 51 at a notch portion 512a (recess). The notch 512a is joined by fillet welding, for example, by adding a weld metal.

The reinforcing plate 53 reinforces the connection state between the vertical tubular portion 51 and the horizontal tubular portion 52 of the connecting member 5 . As shown in FIGS. 5 and 6, the reinforcing plate 53 is arranged on the upper surface of the upper surface plate 522 of the horizontal cylindrical portion 52 on the one end side in the horizontal direction Y. As shown in FIGS. The reinforcing plate 53 is made of a plate-like member and has a square shape in a plan view. The reinforcing plate 53 is arranged across the pair of side plates 514 of the vertical tubular portion 51 in the width direction H. As shown in FIG. A reinforcing slit 531 is formed in the reinforcing plate 53 so as to penetrate in the thickness direction and extend in the width direction H with a predetermined width.

The reinforcing plate 53 is arranged on the upper surface of the upper surface plate 522 of the horizontal tube portion 52 on the side of one end portion in the horizontal direction Y. are joined by welding to the inner surfaces of the pair of side plates 514, 514, respectively, and both ends 533, 533 of the horizontal cylinder portion 52 in the horizontal direction Y are joined to the upper surface of the upper surface plate 522 of the horizontal cylinder portion 52 by welding. be done. Further, the reinforcing plate 53 is welded to the upper surface of the upper surface plate 522 of the horizontal cylindrical portion 52 by adding a welding metal to the reinforcing slit 531 so as to fill the reinforcing slit 531 . The reinforcing plate 53 configured in this manner reinforces the connection between the vertical tube portion 51 and the horizontal tube portion 52, and can secure the connection strength of the connection member 5. As shown in FIG.

As shown in FIG. 2 , the connection member 5 configured by connecting the horizontal tube portion 52 and the vertical tube portion 51 as described above has the vertical tube portion 51 inside the column-side hollow portion 21 of the column 2 . It is fixed by a plurality of screw members 101 in the arranged state. Further, the connection member 5 is fixed by a plurality of screw members 102 at the upper and lower portions with the horizontal cylindrical portion 52 disposed inside the beam 4 .

A cover member 23 is attached to the upper side of the vertical tube portion 51 of the connecting member 5, as shown in FIG. The cover member 23 is fixed to the top plate 522 of the horizontal tubular portion 52 by screw members 103 and 104 which are spaced apart in the horizontal direction Y. As shown in FIG. The cover member 23 is fixed by being screwed into the screw hole 522b of the top plate 522 of the horizontal cylindrical portion 52 in a state where the screw member 103 passes through the through hole 53a of the reinforcing plate 53 at one end side in the horizontal direction Y, thereby reinforcing the cover member 23. The screw member 104 is screwed into the screw hole 522c of the upper surface plate 522 of the horizontal tubular portion 52 and fixed to the other end side of the horizontal direction Y relative to the plate 53 .

According to the connection structure 50 of the column 2 and the beam 4 of this embodiment described above, the following effects are obtained.
In the connection structure 50 of the column 2 and the beam 4 according to the present embodiment, the horizontal member 52 has one end in the longitudinal direction located in the vicinity of the through slit 513a, and has a notch 512a in the middle in the longitudinal direction. placed in A midway portion in the longitudinal direction of the horizontal tubular portion 52 is joined to the vertical tubular portion 51 at the notch portion 512a, and one longitudinal end portion 523a of the lower surface plate 523 of the horizontal tubular portion 52 is connected to the vertical tubular portion 51 at the through slit 513a. is joined with Therefore, in the vertical tube portion 51 and the horizontal tube portion 52, for example, it is not necessary to form an M-shaped bent portion for joining with the horizontal tube portion on the side surface of the vertical tube portion. By doing so, it is possible to secure the connection strength while suppressing the capital investment cost for processing the bent portion.

In addition, in the present embodiment, one longitudinal end portion 522 a of the upper plate 522 of the horizontal tubular portion 52 is joined to the vertical tubular portion 51 on the inner surface of the rear plate 513 . Therefore, it is easier to secure the connection strength at the one longitudinal end portion of the horizontal tubular portion 52 .

Moreover, in this embodiment, the vertical tubular portion 51 and the horizontal tubular portion 52 are configured by combining and joining two L-shaped plate members 511 and 521 .
Therefore, since the L-shaped plate members 511 and 521 can be formed by bending a flat steel plate, the vertical cylindrical portion 51 and the horizontal cylindrical portion 52 can be manufactured at a lower cost than, for example, using a steel pipe formed by rolling steel into a tubular shape. can be made.
In addition, since the two L-shaped plate members 511 and 521 can be combined by adjusting the overlap margin, the strength design of the vertical tube portion 51 and the horizontal tube portion 52 can be easily performed.
In addition, since there are many types of plate-shaped steel plates with different plate thicknesses, it is easy to design the strength of the vertical tube portion 51 and the horizontal tube portion 52 by appropriately selecting the plate thickness of the steel plate.
Further, even if the vertical tubular portion 51 is configured by combining and joining two L-shaped plate members 511 and the horizontal tubular portion 52 is configured by combining and joining two L-shaped plate members 521, the horizontal A middle portion in the longitudinal direction of the tubular portion 52 is joined to the vertical tubular portion 51 at the notch portion 512a, and one end portion of the horizontal tubular portion 52 in the longitudinal direction is joined to the vertical tubular portion 51 at the through slit 513a. Connection strength can be secured.

Further, in this embodiment, the reinforcing plate 53 is joined to the upper surface of the horizontal tubular portion 52 , and both ends in the width direction of the horizontal tubular portion 52 are respectively joined to the inner surfaces of the pair of side plates 514 . As a result, the connection structure 50 between the column 2 and the beam 4 can be reinforced by the reinforcing plate 53 on one longitudinal end side of the horizontal tubular portion 52 . Therefore, connection strength can be improved.

Next, a second embodiment of the invention will be described. FIG. 8 is a perspective view showing a connection structure 50A between the support 2 and the beam 4 of the second embodiment. FIG. 9 is an exploded perspective view of a connection structure 50A of the support 2 and the beam 4 of the second embodiment. FIG. 10 is a vertical cross-sectional view showing a connection portion of a connection structure 50A of the support 2 and the beam 4 of the second embodiment. FIG. 11 is a view showing joints on the back side of the connection structure 50A of the column 2 and the beam 4 of the second embodiment.

2nd Embodiment mainly differs in the structure of 52 A of horizontal cylinder parts, and its periphery compared with 1st Embodiment. In the description of the second embodiment, the same reference numerals are given to the same components as those of the first embodiment, and the description thereof will be omitted or simplified.

As shown in FIG. 8, the horizontal tubular portion 52A of the connecting member 5A of the second embodiment is arranged in the longitudinal direction so as to cope with a larger load than the horizontal tubular portion 52 of the connecting member 5 of the first embodiment. , and the overlapping margin 525c of the pair of U-shaped plate members 525, 525 is configured to be larger than the overlapping margin 521c of the pair of L-shaped plate members 521, 521 in the first embodiment. As a result, in the connection structure 50A between the support 2 and the beam 4, by improving the connection strength, it is configured to be able to cope with a larger load than in the first embodiment.

The connection member 5A includes a vertical tubular portion 51 (vertical member) extending in the vertical direction T, a horizontal tubular portion 52A (horizontal member) extending in the horizontal direction Y intersecting the vertical tubular portion 51 from the upper end of the vertical tubular portion 51, and a reinforcing plate 53 (upper surface reinforcing member). Since the configurations of the vertical tubular portion 51 and the reinforcing plate 53 are the same as those of the first embodiment, description thereof will be omitted. In addition, since welding points in the second embodiment are the same as those in the first embodiment, description thereof will be omitted.

52 A of horizontal cylinder parts of 2nd Embodiment are formed longer in the length of a longitudinal direction than the horizontal cylinder part 52 of 1st Embodiment. As shown in FIGS. 8 and 9, the horizontal cylindrical portion 52A is formed by combining a pair of U-shaped plate members 525, 525 extending in the horizontal direction Y and having a U-shaped cross section in a reversed state in the circumferential direction. It is composed by being joined. The pair of U-shaped plate members 525, 525 are formed, for example, by bending flat steel plates.

As shown in FIG. 9, the pair of U-shaped plate members 525, 525 have overlapping margins 525c that overlap each other on the upper and lower surfaces of the U-shape in the combined state.
The overlapping margin 525c is formed to extend in the horizontal direction Y in a state where the upper surface of one U-shaped plate member 525 and the lower surface of the other U-shaped plate member are overlapped. The overlapping portion 525c of the pair of U-shaped plate members 525 of the second embodiment is arranged so as to overlap over the entire width direction H of the upper surface plate 522 and the lower surface plate 523 of the horizontal tubular portion 52A.

In the overlapping margin 525c, the pair of U-shaped plate members 525, 525 are arranged such that the end surface of the one circumferential end portion 525a is arranged inside and the end surface of the other circumferential end portion 525b is exposed to the outside. are joined to each other. In the overlap margin 525c, the end face extending in the horizontal direction Y of the other circumferential end portion 525b of one U-shaped plate member 525 overlaps with the other U-shaped plate member 525 at a plurality of welding points 525d spaced apart in the horizontal direction Y. It is joined by welding to the bent portion of the

The overlap margin 525c of the pair of U-shaped plate members 525 of the second embodiment overlaps in a range in which the length in the circumferential direction is longer than the overlap margin 521c of the pair of L-shaped plate members 521, 521 of the first embodiment. formed. Specifically, in the upper surface plate 522 and the lower surface plate 523 of the horizontal tubular portion 52A, the plate materials are doubled over the entire width direction H. As shown in FIG. As a result, even when the load received by the horizontal tubular portion 52 of the first embodiment is larger than that of the horizontal tubular portion 52, the overlapping margin 525c of the second embodiment is made longer than the overlapping margin 521c of the first embodiment. The strength of 52A is secured.

In the second embodiment, as shown in FIGS. 10 and 11, the width S2 of the through slit 513a of the vertical cylindrical portion 51 is the width of one end of the lower surface plate 523A in the horizontal direction Y, which is formed by stacking two plate materials. It is formed slightly larger than the thickness T2 of the portion 523a. One end portion 523a in the horizontal direction Y of the lower surface plate 523A of the horizontal cylindrical portion 52 is arranged to face the through slit 513a. It is arranged so as to be within the range of S2.

According to the connection structure 50A of the column 2 and the beam 4 of the second embodiment configured as described above, the same effects as those of the first embodiment are obtained, and the connection strength is higher than that of the first embodiment. Obtainable.

A preferred embodiment of the shelter 1 of the present invention has been described above, but the present invention is not limited to the above-described embodiment and can be modified as appropriate.
For example, in the above-described embodiment, the shelter 1 has a so-called single-support structure in which the roof body 6 is supported by the pillars 2 on one side in the left-right direction. A so-called dual-support structure shelter may be used, in which the ends on both sides of the direction are supported by pillars. In addition, although the shelter 1 of the present embodiment has a suspension structure in which the roof body 6 is suspended from the beams 4, the roof body 6 is not limited to this structure. It is good also as a placement structure placed on the upper end part of the support|pillar 2. FIG.

Further, in the above-described embodiment, one or both of the vertical tube portion 51 (vertical member) and the horizontal tube portion 52 (horizontal member) are configured by combining and joining a plurality of plate materials, but the present invention is not limited to this. Both the vertical tubular portion 51 (longitudinal member) and the horizontal tubular portion 52 (horizontal member) may be formed of an integral member such as a steel pipe formed by bending a steel plate, for example.

1 shelter (roof structure)
2 pillars (columns)
4 Beams 5 Connection member 6 Roof body 50 Connection structure 51 Vertical tubular portion (vertical member)
52 horizontal tube portion (horizontal member)
53 Reinforcement plate (upper surface reinforcement member)
511 L-shaped plate (plate)
512 front plate (first surface)
512a notch (recess)
513 back plate (second surface)
513a through slit 514 side plate (side)
521 L-shaped plate (plate)
522a one end (second portion)
523a one end (first portion)
525 U-shaped plate material (plate material)
T Vertical direction Y Horizontal direction

Claims (5)

a pillar;
a beam extending from the upper end of the pillar in a direction intersecting the pillar;
A column and beam connection structure comprising a connection member arranged inside the column and the beam and connecting the column and the beam,
The connection member has a cylindrical vertical member extending in the vertical direction and a cylindrical horizontal member extending in the horizontal direction crossing the vertical member from the upper end of the vertical member,
The vertical member has a first surface formed with a concave portion at the upper end thereof, and a second surface facing the first surface formed with a through slit penetrating the second surface,
The horizontal member has one end in the longitudinal direction arranged at a position close to the through slit, and a middle portion in the longitudinal direction arranged in the recess,
a longitudinal middle portion of the horizontal member is joined to the vertical member in the concave portion;
A connection structure between a column and a beam, wherein a first portion at one longitudinal end of the horizontal member is joined to the vertical member at the through slit. 2. The column-beam connection structure according to claim 1, wherein a second portion at one longitudinal end of said horizontal member is joined to said vertical member on an inner surface of said second surface. 3. The column-beam connection structure according to claim 1, wherein one or both of the vertical member and the horizontal member are configured by combining and joining a plurality of plate members. The vertical member has a pair of side surfaces that extend along the longitudinal direction of the horizontal member and are arranged to face each other,
further comprising a top surface reinforcing member disposed on the top surface of one longitudinal end of the horizontal member and disposed between the pair of side surfaces of the vertical member;
4. The upper surface reinforcing member according to claim 1, wherein the upper surface reinforcing member is joined to the upper surface of the horizontal member, and both ends of the horizontal member in the width direction are respectively joined to inner surfaces of the pair of side surfaces. column and beam connection structure. A column-to-beam connection structure according to any one of claims 1 to 4;
a roof body connected to the beams.

Images