JP3981327B2 - Three-dimensional truss extrusion structure and three-dimensional truss structure using the same - Google Patents

Description

[0001]
The present invention relates to a three-dimensional truss extruded structure material used to form a structural frame in a three-dimensional truss structure used as various roof structures, self-supporting structures, and the like, and a three-dimensional truss structure using the same.
[0002]
[Prior art]
This kind of three-dimensional truss structure is made of, for example, a steel pipe and uses a straight or V-shaped structure material, and a connecting plate-like portion arranged at a predetermined position in the longitudinal direction and / or in the middle is bolted. A three-dimensional truss is configured by being directly or indirectly coupled with a spacer by fastening a nut and a nut, and an appropriate partition surface material such as a panel or a sheet is disposed on the three-dimensional truss.
[0003]
At this time, the pipe-like structural material is generally made of steel and made of steel having a circular cross section. The present inventor folds and flattens a predetermined position of the structural material so that the diameter and A steel pipe-like structural material for a three-dimensional truss has been proposed in which a connecting plate-like portion having the same width is formed and a connecting hole for inserting a bolt is disposed between both folding edges.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-242184 (refer to column 0008, FIGS. 5 and 6)
[0005]
[Problems to be solved by the invention]
In this case, the connecting plate-shaped part has the same width as the diameter of the structural material, and the connecting hole is located between the folding edges, so that the cross-sectional defect due to the connecting hole is made as small as possible, and the moment in the connecting fit is generated. It is possible to prevent it as much as possible, and it is possible to make it a solid truss structure with excellent strength. However, since the structure material is made of steel, its weight increases, and generally it is lifted to a high place. From the viewpoints of improving workability in assembly work of this type of three-dimensional truss, which often involves individually connecting the connecting plate-like parts of structural materials, and also from the viewpoint of reducing the risk of workers, and further reducing the weight of the three-dimensional truss structure Therefore, it is in a situation where it is desired to reduce the weight as much as possible.
[0006]
To reduce the weight of the structural material, for example, it can be assumed that the structural material is an extruded shape made of aluminum alloy, synthetic resin, etc., but this is folded and flattened using an extruded shape of aluminum alloy. However, it is not possible to secure the strength of the connecting plate-shaped part, and it is not possible to form the connecting plate-shaped part because the material cannot be broken even if it is attempted to flatten by using the extruded shape of synthetic resin. . Further, since the extruded profile has the same cross-sectional shape in the longitudinal direction, the connecting plate-like portion having a cross-sectional shape different from the cross-sectional shape cannot be integrally disposed at the longitudinal end portion or a predetermined position in the middle.
[0007]
The present invention has been made in view of such circumstances, and the problem to be solved is to use a lightweight extruded shape and easily form an integrally formed connecting plate portion while simplifying the cross-sectional shape as much as possible. Thus, it is an object of the present invention to provide a three-dimensional truss extruded structure material and a three-dimensional truss using the same, which can ensure the strength as a structural material and a good connection fit.
[0008]
[Means for Solving the Problems]
In accordance with the above-described problems, the present invention uses a relatively simple and integrally formed extruded profile as a structural material, which has a hollow base portion and a thick flat flange portion that divides the interior into two vertically. At the same time, the hollow base part at the connecting position is partially cut off at the top and bottom to expose a thick flat flange part, and a connecting hole for inserting a bolt is arranged on the flange part. The connecting plate-shaped part integrally formed with the hollow base part is formed, and the linearly shaped form such as the web is left as it is, and the latticed material such as the V-shaped bent form is bent before or after the three-dimensional shape. An extruded structure material for forming a truss, that is, the invention according to claim 1, wherein the connecting plate-like portion disposed at a predetermined position in the longitudinal direction and / or in the middle is fastened by bolts and nuts. Connect the three-dimensional truss A pipe-shaped straight line or V-shaped bent structural member formed by integrally forming a hollow base portion and a thick flat flange portion installed in the middle of the hollow base portion in the vertical direction. And partially exposing the flange portion at a predetermined position in the longitudinal direction of the hollow base by partially removing the flange portion at the predetermined position to expose the flange portion at a predetermined position and disposing a connecting hole for inserting a bolt in the plane. The extruded structure material for a three-dimensional truss is characterized in that the flange portion is the connecting plate-like portion.
[0009]
In addition to the above, the invention described in claim 2 is such that, for example, when the web-shaped extruded structural members are connected to each other at the end portions, one is turned upside down with respect to the other so as to overlap each other. By connecting, it prevents the occurrence of a step between the extruded structure materials due to the thickness of the connecting plate-like portion, and prevents the occurrence of the step by using a single extruded profile with the same cross-sectional shape in common. In order to make this possible, the above-mentioned thick flat flange portion is constructed by being displaced from the vertical center position of the hollow base portion by one-half the thickness in the vertical direction. It is set as the extrusion structure material for solid trusses of Claim 1 characterized by the above-mentioned.
[0010]
In addition to the above, the invention according to claim 3 is the above-described configuration in which the partition surface material is arranged on the three-dimensional truss, and the mounting structure is fixed to the extruded structure material, and the partition surface material fixing material is snap-in mounted to the extruded structure material. The partition surface material by eliminating the inconvenience and danger of work from the outside, for example from the upper surface where the scaffolding is poor, by allowing the operator to work from the lower surface inside the solid truss, for example, by mounting the slide In order to ensure the workability and safety of the mounting work, and to enable the partition surface mounting direction to be from either the left or right side of the extruded structural material, this is done from the flange on the outer surface of the hollow base to the left and right The three-dimensional truss according to claim 1 or 2, further comprising a fitting groove disposed by integral molding for mounting the partition surface material fixing member so as to form a common cross-sectional shape at a symmetrical position. It is obtained by an extrusion structural material.
[0011]
In order to provide a three-dimensional truss structure using the extruded structure material, the invention according to the fourth aspect is formed by using the three-dimensional truss extruded structure material according to the first, second, or third aspect. A three-dimensional truss formed by connecting connecting plate-like portions arranged at predetermined end positions in the direction and / or in the middle by fastening bolts and nuts to form a three-dimensional truss and arranging a partition surface material on the three-dimensional truss It is a truss structure.
[0012]
The present invention uses each of these as the gist of the invention as means for solving the above problems.
[0013]
In the present invention, the top and bottom at the center of the top and bottom of the flange means the top and bottom relative to when the extruded profile is arranged so that the flange is horizontal. It is not something that will be rejected.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the examples of the drawings. A is used for a relatively simple structure such as a structural frame of an agricultural greenhouse (not shown) or a structural frame of a simple roof installed outdoors. The extruded structure material A comprises a three-dimensional truss B by connecting the connecting plate-like portions 11 arranged at predetermined positions in the longitudinal direction and / or in the middle by fastening bolts 17 and nuts 18. A pipe-like straight line or a V-shaped bent form is formed.
[0015]
That is, the extruded structural material A of this example is a lattice material between a linear structural material used as the upper and lower webs (string material) A1 in the three-dimensional truss B and the upper and lower webs, as in, for example, Patent Document 1 above. The web A1 and the lattice material A2 are respectively provided at both ends in the longitudinal direction and in the middle, particularly in the central position (in the case of the lattice material A2, the central bent portion in the longitudinal direction). The connecting plate-like portion 11 is connected to each other by fastening bolts 17 and nuts 18 so that the upper and lower webs A1 are formed into a plane square grid shape, and the lattice material A2 Is inserted between the upper and lower webs A1 so as to form an appropriate angle, for example, a 45 degree angle lattice, thereby forming the three-dimensional truss B used as the structural frame.
[0016]
Each connection of the connecting plate-like portions 11 is performed by arranging the connecting plate-like portions 11 of the web A1 and the lattice material A2 on the webs A1 and the lattice materials A2 respectively. Single or plural, in this example, for example, two spacers 15 are disposed, and washers 13 are respectively disposed above and below the connecting plate-like portion 11 where the web A1 and the lattice material A2 are superposed. Bolts 17 inserted so as to pass through these from the washer 13 side are screwed with nuts 18 on the upper washer 13 side, and tightened so that at each intersection of upper and lower webs A1 and lattice material A2. By connecting the connecting plate-like portions 11 by making the center of the web A1 and the lattice material A2 fastened as close as possible on the axis of the bolt 17 by interposing the spacer 15 in a strong manner. It is so as to suppress the moment occurrence in place.
[0017]
In the three-dimensional truss B formed in this way, a required partition plane body 20, such as a panel, a sheet (including a film-like one), etc., in this example, a sheet is stretched on the upper and lower webs A1, A predetermined three-dimensional truss structure such as a curve or a partial bend is formed.
[0018]
At this time, the extruded structure material A is made of aluminum using, for example, an aluminum alloy, and includes a hollow base portion 10 and a thick flat flange portion 111 installed in the middle of the hollow base portion 10 in the vertical direction. The molded extruded profile is used, and the vertically opposed portion of the hollow base portion 10 at a predetermined position in the longitudinal direction is cut away and the flange portion 111 at the predetermined position is partially exposed, and a connection for inserting a bolt into the surface is provided. By arranging the hole 112, the partially exposed flange portion 111 is formed as the connecting plate-like portion 11, and the thick flat flange portion 111 of this example is located at the upper and lower center positions of the hollow base portion 10. Is displaced in the vertical direction by one half of its wall thickness.
[0019]
In this example, the extruded structure material A has a circular pipe shape, and the hollow base portion 10 has a circular cross section having a predetermined diameter so that the structural strength as the web A1 or the lattice material A2 can be easily secured. The flange portion 111 is an extrusion having an identical cross section in the longitudinal direction, which is integrally formed by erection and arrangement so as to intersect the hollow base portion 10 from the opposing inner wall surface so that the inner hollow portion of the hollow base portion 10 is vertically divided into two. It is made of shape material.
[0020]
The flange portion 111 is installed in a thick and flat manner so that a bridge crossing the inside of the hollow base portion 10 is arranged, and the hollow base portion 10 is reinforced to provide a structural material by arranging the thick and flat flange portion 111. The flange portion 111, which is the connecting plate-like portion 11, is made thick and flat, so that it is possible to achieve a superposed connection and a high degree of connection strength. .
[0021]
The flange portion 111 can be installed in such a way that the hollow portion of the hollow base portion 10 is divided into two equal parts in the vertical direction so that the thickness is applied to the central position in the vertical direction. In this example, the thickness of the flange portion 111 is overlapped at the overlapping connection portion of the connection plate-like portion 11 so that the continuity of the height of the web A1 is lost and a step is generated between the webs A1 at the connection portion. In this case, the installation of the flange portion 111 is displaced in the vertical direction in the hollow base portion 10 by one half of the wall thickness, thereby connecting the web A1 vertically to the other. The contact surfaces (upper surface or lower surface) of the two connecting plate-like portions 11 which are overlapped by superposing the connecting plate-like portions are arranged in the center of the hollow base 10 so that the height of the web A1 is matched. That Since continuity can be ensured and there is no problem in using the extruded structure material as the lattice material A2 due to the presence of the displaced flange portion 111, a plurality of types of extrusions of the web A1 and the lattice beam A2 are performed. It is possible to use a single extruded structural member having the same cross-sectional shape with a single structural member.
[0022]
Extruded profile is formed by extruding a predetermined aluminum alloy suitable for a structural material integrally formed by extrusion and cutting it into a predetermined length. In this example, the flange is placed at both ends and the center position. It is only necessary to perform a partial notch process so as to leave the part 111 so as to remove the notch from the upper and lower portions, and then to place the connecting hole 112 through the exposed flange part 111 by drilling.
[0023]
The extruded profile to be used is that the web A1 is cut to about twice the grid length of the solid truss and the lattice material A2 is cut to about twice the slant length of the solid truss. In this example, the notch processing is performed so that each flange portion 111 has a flat rectangular shape so that the dimensions of the flange portions 111 coincide with each other even if they overlap in the orthogonal direction when they are connected, and the appearance of the connection portion is not impaired. Further, the drilling of the connecting hole 112 is performed so that the connecting hole 112 is disposed at the center position in the plane of the flat rectangular flange portion 111.
[0024]
By removing the notch of the hollow base portion 10 in this example, the flat rectangular flange portion 111 is exposed so as to protrude from the hollow base portion 10 in a tongue-like shape. In this example, the hollow base 10 is inclined so as to have an inclination of about 20 to 30 degrees so that the hollow base 10 is connected to the connecting plate. By projecting to the shape part 11 side, it becomes possible to prevent the connection plate-like part 11 from being obstructed, and at the same time, the hollow base part 10 is not reduced in strength as a structural material.
[0025]
After the above-described notched and perforated shape is applied to an extruded profile having a predetermined length, the linear shape used as the web A1 in this example is directly used as the extruded structure material A1, but used as the lattice material A2. The V-shaped bent form is further extruded by bending by bending so that the flanges 111 and the center flange 111 at both ends of the extruded profile are horizontal and the entire side surface is V-shaped. The material A2 is used.
[0026]
In the case of an aluminum alloy extruded shape as in this example, the surface treatment is generally performed by forming an alumite layer by anodic oxidation and clear coating with acrylic resin, etc., but the notch processing of the hollow base 10 becomes the subsequent processing, and aluminum Depending on the use of the three-dimensional truss and its construction environment, the surface of the alloy is exposed, or a predetermined surface treatment such as spray coating of resin including the part or immersion coating on the resin tank is performed or the base is exposed. In order to improve the corrosion resistance and weather resistance of the extruded structure material, it is preferable to perform so-called post-anodizing, which performs the entire surface treatment after the processing.
[0027]
Reference numeral 13 denotes a fitting groove for mounting the partition surface material fixing member 14 disposed on the outer surface of the hollow base 10 in this example, and the fitting groove 13 is common to the flange part and the left and right symmetrical positions. In this example, the fitting groove 13 has a C-shaped cross section that is symmetrically disposed on the side surface of the hollow base portion 10 at a position that partially overlaps the flange portion 111. Thus, for example, an inverted T-shaped fitting protrusion of the long partition surface material fixing member 14 made of aluminum that has been extruded, for example, is inserted into the fitting groove 13 from the longitudinal end of the fitting groove 13, for example. As a partition surface material 20 adapted to the intended use, it is translucent or light-shielded on the three-dimensional truss B using the extruded structure material via the partition surface material fixing material 14 so as to be fitted and slid. Sheet of appropriate material such as synthetic resin In this case, the partition surface material 20, that is, the sheet is fixed to the partition surface material fixing material 14 by welding the end portion of the sheet or an intermediate position in the opening groove of the fixing material 14. The fixing piece 21 is inserted and clamped by a presser member which is inserted and installed in an opening groove such as an insertion plate or a wavy spring, for example. By fitting the fitting protrusion of the partition material fixing member 14 into the groove 13, the seat can be mounted by the work on the inner side of the three-dimensional truss using the extruded structure material, that is, the roof lower surface side.
[0028]
At this time, the fitting groove 13 in the extruded structure material A of this example is arranged in the vertical symmetry position in addition to the left-right symmetry position, and the four fitting grooves 13 are arranged at intervals of 90 degrees in the outer circumferential direction. As a result, it is possible to fix the sheet end portion or the fixing piece 21 inside the three-dimensional truss B, and also to fix the outer side of the three-dimensional truss B, that is, generally the upper surface with the laying arrangement of the sheets. I have to do it.
[0029]
The fitting groove 13 having the same cross-sectional shape is disposed at the left-right symmetrical position because the adjacent extruded structure A is turned upside down by displacing the flange portion 111 so that the fitting groove 13 is also in the inverted state. This is to ensure the same continuity of the height of the fitting groove 13 on the side surface in accordance with the equality of the height of the web A1 and the continuity thereof. In addition, the fitting grooves 13 having the same cross-sectional shape are arranged at symmetrical positions in the vertical direction when the extruded structure material A is used to fix the upper surface of the outer side of the three-dimensional truss B. Even so, the fitting groove 13 is always arranged on the upper surface to ensure its continuity.
[0030]
The extruded structure material A of the present example has a thick and flat connection plate-like portion 11 having the same width as the diameter of the extruded structure material A, and has a small cross-sectional defect due to the penetration of the connection hole 112 in the surface. 15 is made possible to suppress the generation of moments at the connecting portion as much as possible, while using a lightweight extruded profile and making the cross-sectional shape as simple as possible while integrally forming the connecting plate-like portion 11. Can be ensured to ensure the strength and good connection fit as a structural material, and prevent the occurrence of a step between the extruded structural members A due to the thickness of the connecting plate-like portion 11. It is possible to prevent the occurrence of occurrence by using a single extruded profile having the same cross-sectional shape. Further, regarding the arrangement of the partition surface material 20 on the three-dimensional truss B, the extrusion structure A is attached to the extruded structure A. Against partition material By fixing the fixed material 14 by slide mounting, the work can be performed from, for example, the lower surface inside the three-dimensional truss, for example, to ensure the workability and safety of the partition surface material 20 mounting work, and the partition surface material 20 mounting. The structural material can be formed from the left or right side of the extruded structural material A.
[0031]
The three-dimensional truss structure using the extruded structure material of this example is formed by fastening the connecting plate-like portion 11 disposed at a predetermined position in the longitudinal direction and / or in the middle thereof by fastening bolts 17 and nuts 18 as described above. The three-dimensional truss B is connected to each other, and then the partition surface material 20 is disposed on the three-dimensional truss B. As a result, a structure having excellent connection strength and structural strength can be obtained, and workability and safety of construction work can be obtained. Can be secured sufficiently.
[0032]
The example shown in the figure is as described above, but the extruded shape must be integrally molded with a synthetic resin instead of the aluminum alloy, and at this time, a synthetic fiber with fibers such as glass and carbon added as reinforcement. Use resin and paint, make the cross-sectional shape of the extruded shape other than the above-mentioned circular shape, for example, a rectangular shape with corners, and remove the notch from the hollow base. In a direction that is steeply inclined or orthogonal, a thick flat flange is installed at the center of the hollow base, and a web and a lattice are used as multiple types of extruded profiles with different cross-sectional shapes. The lattice material is a straight member inclined in one direction, the connecting plate-like portions are disposed at both ends thereof, and the partition surface material fixing material is attached to the fitting groove. By adopting a snap-in attachment formed in the form of a ledge, for example, the end of the partition surface material of the sheet or the fixing piece installed at the intermediate position is inserted into the fitting groove together with the sheet. In the implementation of the present invention, the extruded structure material, its extruded form, including the snap-in mounting that press-fits the partition surface material between the fitting groove and the fitting protrusion, etc. Material, hollow base part, notch removal part, flange part, connecting plate-like part thereby, connecting hole, fitting groove to be installed if necessary, shape, structure, material, solid truss and extruded structure The dimensions, uses, relationships between these, additions to these, etc. are not limited to those described above, but can take various forms.
[0033]
【The invention's effect】
Since the present invention is configured as described above, the invention according to claim 1 is a relatively simple shape that is extruded with a hollow base portion and a thick flat flange portion that divides the inside into two vertically. Using an integrally formed extruded profile as a structural material, the hollow base at the connecting position is partially cut away at the top and bottom to expose the thick flat flange, which has a connection hole for bolt insertion. The part of the flange part that is partially exposed forms a connecting plate-shaped part integrally formed with the hollow base part, and the linearly shaped form such as the chord material is left as it is, and the V-shaped folded form such as the lattice is used in advance. Or, by forming the extruded structure material for forming the space truss by bending it after the fact, it is possible to easily form the integrally formed connecting plate-like part while simplifying the cross-sectional shape as much as possible. Strength and good as a structural material It is possible to provide an extruded structural material space truss and adapted to reliably secure the Do coupling fit.
[0034]
In addition to the above, the invention described in claim 2 is such that, for example, when the web-shaped extruded structural members are connected to each other at the end portions, one is turned upside down with respect to the other so as to overlap each other. By connecting, it prevents the occurrence of a step between the extruded structure materials due to the thickness of the connecting plate-like portion, and prevents the occurrence of the step by using a single extruded profile with the same cross-sectional shape in common. It can be done.
[0035]
In addition to the above, the invention according to claim 3 is the above-described configuration in which the partition surface material is arranged on the three-dimensional truss, and the mounting structure is fixed to the extruded structure material, and the partition surface material fixing material is snap-in mounted to the extruded structure material. Attaching the partition surface material by eliminating the inconvenience and danger of work from the outside, for example, from the upper surface where the scaffolding is poor, so that the worker can work from the inside, for example, the lower surface, by slide mounting, etc. The workability and safety of the work can be ensured, and the partition surface material mounting direction can be achieved from either the left or right side of the extruded structure material.
[0036]
The invention according to claim 4 can provide a three-dimensional truss structure formed by using the extruded structure material.
[Brief description of the drawings]
FIG. 1 is a partial plan view of a three-dimensional truss.
FIG. 2 is a partial side view of a three-dimensional truss.
FIG. 3 is a longitudinal sectional view of a connection portion of an extruded structure material.
FIG. 4 is a longitudinal sectional view of an extruded profile.
FIG. 5 is a side view of an extruded structural member of a web.
FIG. 6 is a side view of an extruded structure material of a lattice material.
FIG. 7 is a perspective view showing a relationship between a hollow base portion and a connecting plate-like portion in an extruded structure material.
FIG. 8 is a cross-sectional view showing a relationship between an extruded structure material and a sheet.
[Explanation of symbols]
A Extruded structural material A1 Web A2 Lattice beam 10 Hollow base portion 11 Connecting plate-like portion 111 Flange portion 112 Connecting hole 13 Fitting groove 14 Partition surface material fixing material 17 Bolt 18 Nut

Claims (4)

A pipe-like straight or V-shaped structure material that forms a three-dimensional truss by connecting connecting plate-like parts arranged at predetermined positions in the longitudinal direction and / or intermediate positions by fastening bolts and nuts, Using an extruded profile that is integrally formed with a hollow base and a thick and flat flange portion installed in the middle of the hollow base in the vertical direction, and removing a vertically opposed portion at a predetermined position in the longitudinal direction in the hollow base Then, the flange portion at the predetermined position is partially exposed, and a connecting hole for inserting a bolt is disposed in the surface thereof so that the partially exposed flange portion becomes the connecting plate-like portion. Extruded structural material The said thick flat flange part is displaced from the vertical center position of the said hollow base part in the up-down direction one side by the half dimension of the wall thickness, and is constructed and arranged. Extruded structural material for three-dimensional truss. A fitting groove disposed by integral molding for mounting the partition surface material fixing member so as to form a common cross-sectional shape at a flange portion on the outer side surface of the hollow base portion or a nearby left-right symmetrical position. Item 3. The extruded structure material for a three-dimensional truss according to Item 1 or 2. Using the extruded structure material for a three-dimensional truss according to claim 1, 2, or 3, a connecting plate-like portion disposed at a predetermined position in the longitudinal direction and / or in the middle is connected by fastening bolts and nuts. A three-dimensional truss structure characterized by forming a truss and arranging a partition surface material on the three-dimensional truss.

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