JP2020133186A - Coupling structure between column and beam - Google Patents

Abstract

To provide a coupling structure between a column and a beam that facilitates connecting work between the column and beam and further can suppress deformation of the beam small even if a load is placed on the beam.SOLUTION: A coupling structure comprises a cylindrical hollow column 40, a cylindrical hollow beam 30, and an inner sleeve 50 for coupling the column 40 and beam 30 together. The inner sleeve 50 comprises: a first screw hole 50a which is in a cylindrical shape having a diameter smaller than inner diameters of the beam 30 and column 40, and is also inserted into the hollow of the beam 30 and the hollow of the column 40, and that a fastener formed at an outer peripheral part thereof for fastening to the beam 30 threadably engages; a second screw hole 50b which is formed at a different position from the first screw hole 50a; and a first spacer 60 and a second spacer 70, in which the first spacer 60 is arranged between the beam 30 and inner sleeve 50, and the second spacer 70 is arranged between the column 40 and inner sleeve 50.SELECTED DRAWING: Figure 1

Description

The present invention relates to a connecting structure of columns and beams used in an assembly-type simple roof structure used for a bicycle storage, a carport, a bus stop, a shelter, and the like.

Conventionally, for simple roof structures such as bicycle storage, carports, bus stops, shelters, etc., as a general structure, a beam is attached to a support column, a purlin is passed between the beams, and a roofing material is installed. There are two types of columns: a cantilever type that supports only one end of the beam and a double-sided type that supports both ends of the beam. The cantilever type mainly includes a form in which a support and a beam are integrally formed, and a form in which one end of the support and one end of the beam are connected via a connecting member.

In Patent Document 1, as shown in FIG. 3, the applicant discloses a form in which an inverted L-shaped strut whose upper end is extended forward via an inner sleeve and a beam are connected. Since the inner sleeve is invisible from the outside, it has an excellent design.

Japanese Unexamined Patent Publication No. 2013-227855

By the way, in order to further increase the connecting strength between the column and the beam by using the inner sleeve, it is preferable that the outer diameter of the inner sleeve is closer to the inner diameter of the beam or the column. By using off-the-shelf steel pipes for the columns and beams and using steel pipes one size smaller as the inner sleeve, manufacturing and processing are easy and the cost is low, but there is a certain gap between the inner sleeve and the columns and steel pipes. It ends up. On the other hand, if the outer diameter of the inner sleeve is matched to the inner diameter of the strut and the beam, it is necessary to reduce the diameter at both ends or taper the ends in order to facilitate the installation work, which is costly. It was going to be expensive.

By the way, in order to further increase the connecting strength between the column and the beam by using the inner sleeve, it is preferable that the outer diameter of the inner sleeve is closer to the inner diameter of the beam or the column. By using off-the-shelf steel pipes for the columns and beams and using steel pipes one size smaller as the inner sleeve, manufacturing and processing are easy and the cost is low, but there is a certain gap between the inner sleeve and the columns and steel pipes. It ends up. As a result, when a large load is applied to the beam due to strong wind such as snow on the roof or a typhoon, the beam is likely to be deformed according to the above-mentioned gap. On the other hand, if the outer diameter of the inner sleeve is matched to the inner diameter of the strut and the beam, it is necessary to reduce the diameter at both ends or taper the ends in order to facilitate the installation work, which is costly. It was going to be expensive.

The present invention solves the above-mentioned problems, facilitates the connection work between the support column and the beam, and can suppress the deformation of the beam even when a load is applied to the beam. Is to provide.

In order to achieve the above object, the present invention has the following configuration.
That is, the connecting structure between the support and the beam according to the present invention includes a hollow support having a cylindrical shape, a hollow beam having a cylindrical shape, and an inner sleeve for connecting the support and the beam. The inner sleeve has a cylindrical shape having a diameter smaller than the inner diameter of the beam and the strut, and is inserted into the hollow of the beam and the hollow of the strut, and is formed on the outer peripheral portion thereof to be fastened to the beam. The first screw hole into which the fastener is screwed, the second screw hole formed at a position different from the first screw hole, and the first spacer and the second spacer are provided. One spacer is arranged between the beam and the inner sleeve, and the second spacer is arranged between the support column and the inner sleeve.

According to the present invention
The inner sleeve has a cylindrical shape having a diameter smaller than the inner diameter of the beam and the support column, and is inserted into the hollow of the beam and the hollow of the support column, and is formed on the outer peripheral portion thereof to be fastened to the beam. A first screw hole into which the fastener of the above is screwed, a second screw hole formed at a position different from the first screw hole on the outer peripheral portion, and a first spacer and a second spacer. The first spacer is arranged between the beam and the inner sleeve, and the second spacer is arranged between the support column and the inner sleeve, so that the roofing material can be used. Even if a large load is applied to the beams and columns, the deformation can be suppressed due to the blow-up load from below and the snow load due to the snow accumulation on the roofing material.

It is a front view which shows one Embodiment of the bicycle storage place using the connection structure of the support and the beam which concerns on this invention. It is a side view which shows one Embodiment of the bicycle storage place using the connection structure of the support and the beam which concerns on this invention. It is a top view which shows one Embodiment of the bicycle storage place using the connection structure of the support and the beam which concerns on this invention. FIG. 2 is an enlarged view of the vicinity of the connecting portion between the beam and the support. FIG. 4 is an exploded explanatory view of the beam side. FIG. 4 is an exploded explanatory view of the support column side. It is a partially enlarged view of FIG.

Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

1 and 2 are explanatory views of a bicycle storage place including a connecting structure of columns and beams according to the present invention, FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. The bicycle storage 100 shown in FIGS. 1 to 3 includes a roof material 10, a main building 20 that supports the roof material 10, a beam 30 that supports the main building 20, and a support column that is connected to the beam 30 and is erected on the installation surface. The beam 30 is connected to the support column 40 via the inner sleeve 50.

The roofing material 10 has a substantially rectangular shape in a plan view that is long in the front-rear direction, and a large number of roofing materials 10 are arranged in a state in which the side ends are overlapped with each other in the left-right direction. It is fixed on 20.

The purlin 20 is a long body that is long in the width direction of the roofing material 10, and a plurality of purlins 20 are arranged at intervals in the front-rear direction. In this embodiment, it has a substantially square shape, and the roofing material 10 is fixed to the upper surface side via a fastener 21. The lower surface side has an opening 22 whose central portion in the front-rear direction is formed along the longitudinal direction, and is fixed on the beam 30 or the column 40 via a bolt 23. More specifically, in the bolt 23, a head 24 wider than the opening width of the opening 22 is arranged inside the main building 20, and a screw portion 25 of the bolt 23 is passed through the opening 22 to push the beam 30 in the vertical direction. A nut 26 is screwed to the tip of the threaded portion 25 through the penetration. As a result, the purlin 20 is fixed on the beam 30.

The beam 30 is a hollow long body having a cylindrical shape, is arranged in the front-rear direction, and the support column 40 is connected to the rear end portion 31. As the beam 30, a standard steel pipe having stable strength and low cost is preferably used.

Like the beam 30, the support column 40 has a hollow cylindrical shape, the lower end portion is embedded in the installation surface, and the upper end portion is bent forward to form an inverted L shape. The beam 30 is connected to the front end 41 of the bent upper end. In this embodiment, two columns 40 are erected at intervals in the left-right direction, and beams 30 are connected to each of the columns 40. As the support column 40, a standard steel pipe having stable strength and low cost is preferably used. In this embodiment, the beam 30 and the support column 40 are made by using the same standard product.

Next, the connecting structure of the beam 30 and the support column 40 will be described in more detail. 4 is an enlarged view of the vicinity of the connection portion between the beam 20 and the support column 40 in FIG. 2, FIG. 5 is an exploded explanatory view of the beam 30 side in FIG. 4, and FIG. 6 is an exploded explanatory view of the support column 40 side in FIG. Is a partially enlarged view of FIG. The beam 30 and the support column 40 are connected via an inner sleeve 50. The inner sleeve 50 has a cylindrical shape and has a diameter smaller than the inner diameter of the beam 30 and the support column 40.

The inner sleeve 50 has a first screw hole 50a on the outer peripheral portion thereof, and is formed so as to open outward from the outer peripheral portion. Then, as shown in FIG. 5, when the inner sleeve 50 is inserted from the rear end 31 side of the beam 30 toward the inside of the hollow to a predetermined position in the direction of the arrow X1, at the position corresponding to the first screw hole 50a, The beam 30 is formed with a through hole 30a that penetrates inside and outside. The inner sleeve 50 is fixed to the beam 30 by inserting the bolt 32 from the outside of the through hole 30a and screwing it into the first screw hole 50a. In the present embodiment, two first screw holes 50a and two through holes 30a are formed, but they can be appropriately set according to the required fixing strength.

Further, the inner sleeve 50 has a second screw hole 50b at a position different from that of the first screw hole 50a, and is formed so as to open outward from the outer peripheral portion. Then, as shown in FIG. 6, when the inner sleeve 50 is inserted from the front end portion 41 of the support column 40 toward the inside of the hollow to a predetermined position in the direction of the arrow X2, the support column 40 is inserted at a position corresponding to the second screw hole 50b. Is formed with a through hole 40a penetrating inside and outside. The inner sleeve 50 is fixed to the support column 40 by inserting the bolt 42 from the through hole 40a side and screwing it into the second screw hole 50b.

In this embodiment, the through holes 30a and 40a are formed in the upper portions of the beam 30 and the support column 40 so that the bolts are not easily visible in appearance. Then, the outer peripheral portion of the upper portion of the inner sleeve 50 is brought into contact with the inner peripheral portion of the upper portion of the beam 30 and the support column 40 by the bolts 32 and 42. Further, since the inner sleeve 50 has a smaller diameter than the beam 30 and the support column 40, as shown in FIG. 7, between the outer peripheral portion of the lower portion of the inner sleeve 50 and the inner peripheral portion of the lower portion of the beam 30 and the support column 40. The gaps S1 and S2 are formed.

As shown in FIG. 7, the inner sleeve 50 includes a first spacer 60 and a second spacer 70 that can be arranged in the gaps S1 and S2. The first spacer 60 has a head portion 61 arranged outside the inner sleeve 50 and a fixing portion 62 for fixing to the inner sleeve 50. The second spacer 70 has a head portion 71 arranged outside the inner sleeve 50 and a fixing portion 72 for fixing to the inner sleeve 50. In this embodiment, the first spacer 60 and the second spacer 70 both use hexagonal bolts, and the male screw portions are fixed portions 62 and 72.

As shown in FIG. 5, the first spacer 60 is arranged in the gap S1 on the beam 30 side and is arranged on the rear end 31 side of the first screw hole 50a. Further, the second spacer 70 is arranged in the gap S2 on the support column 40 side and closer to the front end portion 41 side of the support column 40 than the second screw hole 50b.

As a result, the first spacer 60 and the second spacer 70 are fixed between the first screw hole 50a and the second screw hole 50b, and in this embodiment, near the central portion of the inner sleeve 50. Therefore, when the inner sleeve 50 is inserted into the hollow of the beam 30 and the support column 40, it is possible to suppress interference with the first spacer 60 and the second spacer 70. When inserting the inner sleeve 50 to the inner part of the hollow of the beam 30 and the support column 40, the gap S1 and the gap S2 are secured by moving the inner sleeve 50 to the upper side of the beam 30 and the support column 40, and the gap S1 and The first spacer 60 and the second spacer 70 can be easily arranged in S2.

In the installed state of the bicycle storage 100, when a wind load or the like is applied from below the roofing material 10, the support column 40 side becomes a fulcrum and the front end side of the beam 30 behaves as a free end, so that the beam 30 is directed upward. The load acts to deform. Along with this load, the beam 30 is further deformed in the vertical direction and deformed in the front direction in which the lower portion of the rear end portion 31 of the beam 30 is separated from the front end portion 41 of the support column 40. Since these deformations are related to each other, by suppressing one of the deformations, the other deformations can be suppressed, so that the deformation of the beam 30 can be suppressed.

Here, among the above deformations, when a deformation that is crushed in the vertical direction occurs, the inner peripheral portion of the lower portion of the beam 30 moves relatively upward to come into contact with the first spacer 60. That is, until it comes into contact with the first spacer 60, it deforms according to the above load because there is no other member that can come into contact with it, but after it comes into contact with it, further deformation is unlikely to occur. Therefore, the amount of deformation of the beam 30 can be suppressed. In addition, after the above-mentioned contact, the beam 30 is deformed with the first spacer 60 in contact as a fulcrum, so that the beam 30 is deformed with the first spacer 60 as a fulcrum. , The lower part of the rear end portion 31 of the beam 30 is suppressed from being deformed in the front direction away from the front end portion 41 of the support column 40. Therefore, it is possible to suppress the expansion of the gap generated between the beam 30 and the support column 40.

The closer the first spacer 60 is attached to the inner sleeve 50 to the rear end 31 of the beam 30, the easier it is to insert the inner sleeve 50 into the hollow of the beam 30, which is preferable. On the other hand, if the beam 30 is too close to the rear end 31 side, the inner peripheral portion of the beam 30 comes into contact with the first spacer 60 due to deformation, and when a load is further applied, the vicinity of the tip of the rear end 31 is outward. It acts to be pushed out. Therefore, if a slight deformation remains even when the load is released, a step may occur in the vertical direction between the rear end portion 31 and the front end portion 41 of the support column 40, and the deformation accumulates when the load is repeated. There is a risk that the step will become large. Therefore, the mounting position of the first spacer 60 is preferably at least a position far from the tip of the rear end portion 31 and away from the thickness of the beam 30.

On the other hand, when snow or the like is generated on the roof material 10 and a load is generated downward from the roof material 10, a larger load is generated on the beam 30 side. Therefore, in the vicinity of the connecting portion between the beam 30 and the support column 40, , The deformation occurs so that the beam 30 moves relatively downward. Specifically, the inner sleeve 50 fixed as the beam 30 moves downward also moves integrally, but the inner sleeve 50 fixed to the support column 40 has a relatively small amount of movement, so the inner sleeve The 50 is in a deformed state in which the beam 30 side is located downward, and the gap S2 between the inner sleeve 50 and the inner peripheral portion of the lower portion of the support column 40 is narrowed.

Since the second spacer 70 is arranged in the gap S2, when the second spacer 70 comes into contact with the inner peripheral portion of the support column 40, it does not move further downward. As a result, even if a load due to snow accumulation or the like on the roofing material 10 is applied to the beam 30 and the support column 40, deformation that may occur due to the load can be suppressed.

As for the mounting position of the second spacer 70 on the support column 40 side, the shorter the distance from the inner peripheral portion of the support column 40, the more the deformation can be suppressed, and in addition, the closer to the front end portion 41 of the support column 40 of the inner sleeve 50. , It is preferable because the inner sleeve 50 can be easily inserted into the hollow of the support column 40. On the other hand, if the mounting position of the second spacer 70 is too close to the rear end 31 side, the inner peripheral portion of the support column 40 comes into contact with the second spacer 70 due to deformation, and when a further load is applied, the front end 41 It acts so that the vicinity of the tip of the is pushed outward. Therefore, if a slight deformation remains even when the load is released, a step may occur in the vertical direction between the front end portion 41 and the rear end portion 31 of the beam 30, and the deformation accumulates when the load is repeated. There is a risk that the step will become large. Therefore, the mounting position of the second spacer 70 is preferably at least a position farther from the front end portion 41 than the thickness of the support column 40.

Both the first spacer 60 and the second spacer 70 are used as hexagon bolts in this embodiment. Hexagon bolts are JIS standard products with a difference in head height of about 1 to 2 mm, and can be appropriately selected and used according to the dimensions of the gaps S1 and S2, and the corresponding location of the inner sleeve 50. If a screw hole is provided in the screw hole, the construction is easy and the fastening can be firmly performed, which is preferable. However, it is not limited to the hexagonal bolt, and as another form, for example, a head is created in accordance with the inner peripheral portion of the beam 30 or the support column 40, and the head is provided with a fixing portion as a male screw portion. Examples thereof include those in which the head is integrally formed with the inner sleeve.

Although the connection structure between the support column and the beam of the present invention has been described above based on the embodiments, the present invention is not limited to these embodiments. The scope of the present invention also includes various modifications that can be conceived by those skilled in the art without departing from the gist of the present invention.

The present invention can be widely used as a connecting structure between columns and beams used in an assembly-type simple roof structure used for a bicycle storage, a carport, a bus stop, a shelter, and the like.

10 Roofing material 20 Main building 30 Beam 30a Through hole 31 Rear end 32 Bolt 40 Strut 40a Through hole 41 Front end 42 Bolt 50 Inner sleeve 50a First screw hole 50b Second screw hole 60 First spacer 61 Head 62 Fixed part 70 Second spacer 71 Head 72 Fixed part 100 Bicycle storage S1, S2 Gap

Claims (1)

A hollow column having a cylindrical shape, a hollow beam having a cylindrical shape, and an inner sleeve for connecting the column and the beam are provided.
The inner sleeve has a cylindrical shape having a diameter smaller than the inner diameter of the beam and the column, and is inserted into the hollow of the beam and the hollow of the column, and is formed on the outer peripheral portion thereof and fastened to the beam. A first screw hole into which a fastener for screwing is screwed, a second screw hole formed at a position different from the first screw hole, and a first spacer and a second spacer.
The strut and the beam are characterized in that the first spacer is arranged between the beam and the inner sleeve, and the second spacer is arranged between the strut and the inner sleeve. Connection structure.

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