JP2012167517A - Building material and construction structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building material capable of maintaining a connection strength between a web and a plate-like body even if the web is formed in waveform.SOLUTION: A building material comprises: a web 20A which is formed into a plate extending in a reference direction X and is displaced in a thickness direction Y to be formed in waveform; a pair of flange parts 31A placed on both ends in an orthogonal direction Z to the reference direction of the web; a plate-like body 40A placed on an end of the web in the reference direction with its normal line at an acute angle to the reference direction and connected to the pair of flange parts, respectively. In a cross-sectional shape of a plane perpendicular to the orthogonal direction in the web, a convex part 21A, which is displaced to one side in the thickness direction to a reference plane 101A parallel to the reference direction, and a concave part 22A, which is displaced to the other side in the thickness direction, are alternately placed in the reference direction. The convex part and the concave part are connected with a slope part 23A, which is crossing the reference plane. The plate-like body is connected to at least a part of the slope part.

Description

  The present invention relates to a building material used by connecting ends and the like, and a construction structure including a plurality of the building materials.

2. Description of the Related Art Conventionally, in the structural field using steel, a construction structure is configured using a building material having H-shaped steel or the like.
For example, in the construction structure described in Patent Document 1, an end plate (plate-like body) is provided at the end of an H-shaped steel to form a building material, and a pair of building materials are connected in a state where the end plates are in contact with each other. This constitutes the construction structure.
For the connection between the end plates, a high-strength bolt that can withstand high tensile stress is used.

Also, in the field of bridges and the like, there is a type in which a web is formed into a corrugated shape in plan view and plate members are attached to the upper and lower portions of the web to increase the compressive strength between both plate members.
Also in the building material described in Patent Document 1, it is considered to increase the rigidity of the web by forming an H-shaped steel web into a corrugated shape and at the same time to reduce the thickness of the web to reduce the weight and cost of the building material. ing.

JP 2007-284912 A

  However, if the thickness of the web in the building material is reduced, the amount of welding between the web and the end plate is reduced, so that the connection area between the web and the end plate is reduced. For this reason, there exists a problem that the connection strength of a web and an end plate will fall and the intensity | strength as the whole building material will fall.

  This invention is made in view of such a problem, Comprising: Even if it is a case where a web is formed in a waveform, the building material which can maintain the connection intensity | strength of a web and a plate-shaped object, and this An object is to provide a construction structure having a plurality of building materials.

In order to solve the above problems, the present invention proposes the following means.
The building material of the present invention is formed in a plate shape extending in the reference direction and formed in a waveform by being displaced in the thickness direction, and provided at both ends of the web in the orthogonal direction perpendicular to the reference direction. A pair of flange portions and plate-like bodies provided at the ends of the web in the reference direction so that their normals form an acute angle with respect to the reference direction, and connected to the pair of flange portions, respectively. And a cross-sectional shape of a plane perpendicular to the orthogonal direction in the web is displaced to one side of the thickness direction with respect to a reference plane parallel to the reference direction, and displaced to the other side. And the valleys are alternately arranged in the reference direction, and the ridges and the valleys are connected by slopes intersecting the reference plane, and the plate-like body is On at least part of the slope It is characterized by being continued.

  According to this invention, since the slope portion is not only inclined with respect to the plate-like body, but also with respect to the reference direction, at least a part of the slope portion is connected to the plate-like body. Thus, the area of the web connected to the plate-like body is increased as compared with the case where the peak portion and the valley portion are connected to the plate-like body.

Moreover, the construction structure of the present invention includes a pair of the building materials described above, and the pair of building materials are arranged such that the reference planes are arranged on the same plane and the plate-like bodies are brought into contact with each other. It is characterized by being connected in a state. In this case, each building material is configured such that a peak portion and a valley portion are arranged across a reference plane arranged on the same plane.
Further, in the above construction structure, the pair of building materials, when viewed in parallel to a direction orthogonal to the contact surfaces with which the pair of plate-like bodies abut, and the plate-like body in one of the building materials, It is more preferable that the connecting portion with the mountain portion and the connecting portion between the plate-like body and the valley portion in the other building material are connected to face each other across the reference plane.

In this invention, according to the building material of Claim 1, even if it is a case where the thickness of a web is made thin, the connection area of a web and a plate-shaped object is ensured, and a web and a plate-shaped object are ensured. By connecting, the strength and rigidity of the entire building material can be increased.
According to the construction structure of the second aspect, in each building material, the bending rigidity around the intersection line between the contact surface between the two plate-like bodies and the reference plane can be increased.
According to the construction structure of the third aspect, in the pair of building materials connected to each other, the peak portion and the valley portion are arranged in a well-balanced manner without being shifted to one side of the reference plane with the plate-like body interposed therebetween. The bending rigidity of the entire construction structure around the intersection line between the contact surface between the two plate-like bodies and the reference plane can be increased.

It is a front view which shows typically the structure of the ramen structure comprised using the construction structure of this invention. It is a perspective view of the principal part of the construction structure. It is a front view of the principal part of the construction structure. It is sectional drawing by the virtual plane in FIG. It is sectional drawing of the cutting line BB in FIG. It is principal part sectional drawing of the pillar of the modification of this invention. It is principal part sectional drawing of the pillar of the modification of this invention.

Hereinafter, an embodiment of a construction structure according to the present invention will be described with reference to FIGS. 1 to 7. As shown in FIG. 1, the construction structure 1 is used when, for example, a one-story factory or warehouse is configured with a ramen structure.
The construction structure 1 of the present embodiment includes a pair of columns (building material) 10A arranged on the horizontal plane G in parallel to the vertical direction and beams (building materials) connected so as to bridge the upper ends of the pair of columns 10A. 10B. In the present embodiment, the column 10A and the beam 10B have the same configuration except that the position used in the construction structure 1 and the shape of one end are different. In the following, in the column 10A and the beam 10B, parts having the same configuration are denoted by the same reference numerals, and “A” is added after the number for the elements of the column 10A, and numbers are given for the elements of the beam 10B. It is assumed that “B” is added after “.
The lower end of the column 10A is fixed to a foundation (not shown) such as a reinforced concrete provided on the horizontal plane G, for example.

As shown in FIGS. 2 and 3, the column 10 </ b> A is formed in a plate shape extending in the reference direction X and is displaced in the thickness direction Y to form a substantially waveform, and the reference direction of the web 20 </ b> A. A pair of flange portions 30A, 31A provided at both ends of the orthogonal direction Z orthogonal to X and the thickness direction Y, respectively, and an end plate (plate-like) provided at the upper end portion in the reference direction X of the web 20A Body) 40A.
The web 20A is disposed so that the reference direction X is parallel to the vertical direction.

FIG. 4 shows a cross-sectional shape of the web 20A taken along a virtual plane 100A orthogonal to the orthogonal direction Z shown in FIG.
This cross-sectional shape is such that a ridge 21A displaced on one side Y1 in the thickness direction Y and a valley 22A displaced on the other side Y2 are alternately arranged in the reference direction X with respect to a reference plane 101A parallel to the reference direction X. In addition, the ridge portion 21A and the valley portion 22A are connected by a slope portion 23A that intersects the reference plane 101A.
In the present embodiment, the cross-sectional shape of the peak portion 21A and the valley portion 22A by the virtual plane 100A is formed in a line shape parallel to the reference plane 101A, and the slope portion 23A is formed in a line shape intersecting the reference plane 101A. . The web 20A is formed, for example, by bending a single steel plate so that the ridges 21A, the slopes 23A, the valleys 22A, the slopes 23A, the ridges 21A,... It is formed in a waveform.

As shown in FIG. 2, the flange portions 30A and 31A are formed in a flat plate shape having a width (length in the thickness direction Y) wider than the web 20A, and are connected to the web 20A by welding or the like.
As shown in FIG. 4, the end plate 40A is formed in a flat plate shape wider than the flange portions 30A and 31A. As shown in FIG. 3, the end plate 40A is disposed such that its own normal 41A forms an acute angle with respect to the reference direction X and is connected to the inclined surface portion 23A. The end plate 40A is disposed so as to be parallel to the thickness direction Y, and is connected to the web 20A and the flange portions 30A and 31A by welding or the like. In this example, the angle θ _A formed by the normal 41A with respect to the reference direction X is set to about 45 °.
A plurality of through holes 42A are formed in the end plate 40A so as to sandwich the connecting portion with the flange portion 30A and the connecting portion with the flange portion 31A.

As shown in FIGS. 3 and 4, the column 10 </ b> A includes a reinforcing plate 51 </ b> A that connects the flange portions 30 </ b> A and 31 </ b> A and the end plate 40 </ b> A. The reinforcing plate 51A is connected to the end plate 40A and the flange portion 30A by welding or the like.
As shown in FIG. 5, the reinforcing plate 51A has a cutout 52A so that the reinforcing plate 51A does not overlap the through hole 42A when viewed in parallel to the normal line 41A.

The column 10A and the beam 10B are connected in a state where the reference planes 101A and 101B are arranged on the same plane and the end plates 40A and 40B shown in FIG. 3 are in contact with each other.
As shown in FIG. 5, the column 10A and the beam 10B are arranged in a direction perpendicular to the contact surface where the end plates 40A and 40B contact each other, that is, when viewed in parallel to the normal line 41A, the end plate 40A and the beam 10B A connection portion between the mountain portion 21A and a connection portion between the end plate 40B and the valley portion 22B in the beam 10B are connected to face each other across the reference plane 101A. Similarly, the connection portion between the end plate 40A and the valley portion 22A in the column 10A and the connection portion between the end plate 40B and the peak portion 21B in the beam 10B are connected so as to face each other across the reference plane 101A. .

  As shown in FIG. 3, the through hole 42A of the end plate 40A and the through hole 42B of the end plate 40B are arranged so as to communicate with each other. The end plates 40A and 40B are connected to each other by fixing a high-strength bolt 56 inserted through the through holes 42A and 42B with a nut 57.

  For example, when a load is applied to the beam 10B from above, the construction structure 1 configured as described above supports the beam 10B from below with columns 10A connected at both ends of the beam 10B.

As described above, according to the pillar 10A and the construction structure 1 of the present embodiment, the slope portion 23A is not only inclined with respect to the end plate 40A but also with respect to the reference direction X. Therefore, by connecting the slope portion 23A to the end plate 40A, the area connected to the end plate 40A becomes larger than when the peak portion 21A and the valley portion 22A are connected to the end plate 40A.
Therefore, even when the thickness of the web 20A is reduced, by securing the connection area between the web 20A and the end plate 40A and securely connecting the web 20A and the end plate 40A, the column 10A as a whole can be obtained. Strength and rigidity can be increased.

To reduce the connection area between the end plate and the web, in order to increase their connection strength, for example, fillet welding or partial penetration welding with increased web thickness and increased weld size, or complete penetration welding. Therefore, welding that requires great skill and labor is required. On the other hand, in the present invention, since the connection area between the end plate and the web is ensured by forming the web composed of the thin steel plate as a whole into a substantially corrugated shape, the end plate and the web are welded to each other. Even if the connection is made by relatively simple welding such as fillet welding with a small diameter, the connection strength can be ensured.
In addition, by forming the web 20A as a whole in a substantially corrugated shape, the web 20A can be prevented from buckling in the orthogonal direction Z and the bending rigidity can be increased.

The column 10A and the beam 10B are connected in a state where the end plates 40A and 40B are in contact with each other so that the reference planes 101A and 101B are arranged on the same plane.
The pillar 10A has a crest 21A and a valley 22A with reference planes 101A and 101B arranged on the same plane, and the beam 10B has a crest with the reference planes 101A and 101B arranged on the same plane. 21B and trough 22B are arranged. For this reason, in the pillar 10A and the beam 10B, the bending rigidity around the intersection line L (see FIG. 2) between the contact surface between the end plates 40A and 40B and the reference planes 101A and 101B can be increased.

When viewed in parallel to the normal line 41A, the connection portion between the end plate 40A and the peak portion 21A in the column 10A and the connection portion between the end plate 40B and the valley portion 22B in the beam 10B sandwich the reference plane 101A. They are connected to face each other. Therefore, in the pillar 10A and the beam 10B connected to each other, the crests 21A, 21B and the troughs 22A, 22B are arranged in a balanced manner without shifting to the one side of the reference plane 101A across the end plates 40A, 40B. The bending rigidity around the intersection line L of the entire construction structure 1 can be increased.
Since the column 10A includes the reinforcing plate 51A, the connection length between the flange portions 30A and 31A and the end plate 40A can be secured.
When the reinforcing plate 51A is not provided, in order to transmit all axial forces that can be transmitted by the flange portions 30A and 31A to the end plate 40A, complete penetration welding with an effective entire cross-section is required. However, by providing the reinforcing plate 51A, the connection length between the flange portions 30A and 31A and the end plate 40A can be increased, and therefore, connection can be made by simpler fillet welding or partial penetration welding.
Then, by connecting the end plates 40A and 40B with the high-strength bolt 56 so as to sandwich the connecting portion between the end plate 40A and the reinforcing plate 51A, the rigidity of the joint can be increased by utilizing the bending performance of the plate. it can.


When viewed in parallel to the normal line 41A, the connection portion between the end plate 40A and the peak portion 21A in the column 10A and the connection portion between the end plate 40B and the valley portion 22B in the beam 10B sandwich the reference plane 101A. They are connected to face each other. Therefore, in the pillar 10A and the beam 10B connected to each other, the crests 21A, 21B and the troughs 22A, 22B are arranged in a balanced manner without shifting to the one side of the reference plane 101A across the end plates 40A, 40B. The bending rigidity around the intersection line L of the entire construction structure 1 can be increased.
Since the column 10A includes the reinforcing plate 51A, the connection length between the flange portions 30A and 31A and the end plate 40A can be secured. Then, by connecting the end plates 40A and 40B with the high-strength bolt 56 so as to sandwich the connecting portion between the end plate 40A and the reinforcing plate 51A, the rigidity of the joint can be increased by utilizing the bending performance of the plate. it can.

  Further, when connecting the column 10A and the beam 10B, the high strength bolt 56 is inserted into the through holes 42A and 42B with the end plates 40A and 40B being in contact with each other, and the inserted high strength bolt 56 is fixed with the nut 57. To do. At this time, since the notch 52A is formed in the reinforcing plate 51A, the high-strength bolt 56 and the nut 57 can be easily fastened with, for example, an electric wrench.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The change of the structure of the range which does not deviate from the summary of this invention, etc. are included.
For example, in the above-described embodiment, the cross-sectional shape of the web 20A by the virtual plane 100A is entirely formed by the ridges 21A and valleys 22A parallel to the reference direction X, and the slopes 23A connecting the ridges 21A and the valleys 22A. As shown in FIG. However, this cross-sectional shape may be a shape like a sine wave. By configuring the web in this way, the portion of the web that intersects the reference direction X increases, and the area of the web connected to the end plate 40A can be increased.

Moreover, in the said embodiment, the flange parts 30A and 31A of the pillar 10A were formed in flat form. However, the shape of the flange portions 30A and 31A is not limited to this. For example, as shown in FIG. 6, the cross-sectional shape by a plane orthogonal to the reference direction X is a flange portion 32A and 33A formed into a rectangular tube. There may be. Moreover, as shown in FIG. 7, the cross-sectional shape by the plane orthogonal to the reference | standard direction X may be the flange parts 34A and 35A in which the groove | channel was formed in the opposite side to the web 20A.
By configuring the flange portion in this way, the rigidity of the column can be increased.

The angle θ _A formed by the normal 41A of the end plate 40A with respect to the reference direction X is not limited, and as long as the end plate 40A is connected to at least a part of the slope portion 23A, the angle θ _A is less than 0 °. Any angle in the range of greater than 180 ° may be used.
When the rigidity of the construction structure 1 as a whole is relatively high, when viewed parallel to the normal line 41A, the connection portion between the end plate 40A and the peak portion 21A in the column 10A, and the end plate 40B in the beam 10B The connecting portion with the valley portion 22B may not be connected so as to face each other across the reference plane 101A.

1 Construction structure 10A Pillar (building material)
10B Beam (building material)
20A, 20B Web 21A, 21B Mountain 22A, 22B Valley 23A Slope 30A, 30B, 31A, 31B, 32A, 33A, 34A, 35A Flange 40A End plate (plate-like body)
101A, 101B Reference plane X Reference direction Y Thickness direction Z Orthogonal direction

Claims (3)

A web formed into a waveform by being displaced in the thickness direction while being formed in a plate shape extending in the reference direction,
A pair of flange portions provided at both ends of the web in a direction orthogonal to the reference direction;
A plate-like body provided at an end of the web in the reference direction so that its normal is at an acute angle with respect to the reference direction, and connected to a pair of flange portions,
Have
A cross-sectional shape by a plane orthogonal to the orthogonal direction in the web has a peak portion displaced to one side of the thickness direction with respect to a reference plane parallel to the reference direction, and a valley portion displaced to the other side. Alternatingly arranged in the reference direction, and a shape in which the ridges and the valleys are connected by slopes intersecting the reference plane,
The plate-like body is connected to at least a part of the slope portion. A pair of building materials according to claim 1,
A pair of the building materials are connected in a state in which the reference planes are arranged on the same plane and the plate-like bodies are in contact with each other. The construction structure according to claim 2,
When the pair of building materials is viewed in parallel to the direction orthogonal to the contact surfaces with which the pair of plate-like bodies abut,
The connecting portion between the plate-like body and the mountain portion in one of the building materials and the connecting portion between the plate-like body and the valley portion in the other building material are connected so as to face each other across the reference plane. Construction structure characterized by being made.

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