JP2569289Y2 - Materials for structures - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] The present invention relates to the invention of a structural material, which can obtain appropriate strength and straightness as beams and columns, and provide preferable reinforcement and weight reduction. It is an object of the present invention to provide a material for a structure which is advantageous in utilizing the inside such as bonding property with concrete and which is easy to manufacture.

(Industrial applications) Materials for use in various above-ground or underground or underwater structures.

(Prior Art) It is well known that beams, girders, pillars, and the like are required to obtain structures above ground, underground, underwater, and the like. These materials include solid bars, shapes, and pipes. Various materials such as lumber, lattice, and square lumber are used.

Examples of the material include steel, stainless steel, aluminum alloy, wood, vinyl chloride and other synthetic resin materials, concrete materials, and composite materials thereof.

Further, some proposals have been made for making various structures themselves such as large steel pipes or square pipes.

(Problems to be Solved by the Invention) It is indispensable to obtain a required strength in the above-mentioned conventional structural materials, and in order to obtain this strength, it is necessary to increase the wall thickness or thickness. Requested. However, those having a large wall thickness or diameter inevitably require a large amount of steel and the like, and have a large weight.

In addition, as described above, when a heavy material is used as a beam material or a girder material, the middle part is bent, so it is necessary to arrange a support or the like in the middle. Therefore, it is necessary to use a support material or a cross member, and the structure of the structure is complicated and a large amount of material is required. Particularly, in recent large structures, even if a long material is used, the structure is complicated because of this, and it is not easy to obtain a structure having a huge space with a simple configuration.

"Structure of the invention" (Means for solving the problem) The present invention has been devised through repeated studies so as to solve the problems in the conventional device described above, and is as follows.

A belt-like member is disposed inside a circular outer peripheral member and fixed in a polygonal shape along the axial direction of the outer peripheral member. A structural material having a residual portion formed thereon.

(Operation) By using the circular outer peripheral member, a material having no strength or directionality in use can be obtained.

By arranging and fixing each plate material in a polygonal shape along the axial direction of the outer peripheral member inside the circular outer peripheral member, an edge portion of each plate material easily attached by welding or the like acts as a vertical streak. Further, since each plate material itself also has a reinforcing action, it has an essentially hollow structure, and a preferable strength or linearity can be obtained by a relatively small amount of steel material. That is, since the amount of material is small, it is weighed, and since the linearity and strength are obtained as described above, preferable linearity is secured for a long beam material or the like.

Attachment of each plate material edge to the inside of the circular outer peripheral member by welding etc., using the boundary ridge line between the plate materials as a guide, operate the automatic welding machine etc. properly, and in the case of large steel pipes etc., workers etc. enter appropriately. Easy construction using an automatic welding machine.

A plurality of openings are formed in the plate member fixed as described above, and a band-shaped remaining portion inclined in the plate width direction is formed between the openings to further reduce the weight of the plate member, and furthermore, the band-shaped remaining portion. Works stochastically or staggered to obtain stable strength characteristics, and in addition to sufficient strength bonding when filled with concrete, etc., and the space formed between the outer peripheral body and By communicating with each other, the inner space of the outer peripheral body is effectively used.

(Embodiment) A specific embodiment of the present invention as described above will be described. As shown in FIGS. 1 and 2, a circular outer peripheral member 1 is provided inside the circular outer peripheral member 1 along the axial direction of the outer peripheral pair 1. The plate members 2, 2, 2,... Are arranged in a polygonal shape, and the outer pair 1 and each of the plate members 2 and the plate members 2 are attached to each other by a welded portion 3. The inner diameter of the outer peripheral member 1 is several hundred mm to several thousand mm. Can be appropriately adopted.

When welding between the circular outer peripheral member 1 and the outer surface of the plate member 2 is disadvantageous in terms of man-hours or work operation as shown in FIG. 1, a groove is formed at the edge as shown in FIG. The plate materials 2 and 2 are set and 1
The two plate materials 2 and 2 and the outer peripheral member 1 can be joined by the third welding 3. This may be performed only once in the case of plug welding 3a as shown in FIG. 5 (B).

As shown in FIG. 4, each of the plate members 2 attached as described above is provided in a square shape, a triangular shape, or another polygonal shape. Openings 4 are formed in each opening 4,4,
The strip-shaped remaining portion 5 between 4 and 4 forms a state inclined in the plate width direction, and is connected on both sides of the plate 2 and the inclined edges 5a and 5a are formed symmetrically to form a lattice structure.
The weight of the plate member 2 itself is reduced while maintaining the supporting and reinforcing performance for the outer peripheral member 1, and furthermore, the space formed between the plate member 2 and the outer peripheral body 1 is communicated to allow the spaces to communicate with each other. Can be advantageously achieved.

The outer peripheral body 1 is generally a circular shape, but may be an elliptical shape or an elliptical shape in some cases, and the true circular shape has no directionality in strength and other characteristics. Even if they are elliptical or elliptical, those having a major axis of 1.5 times or less the minor axis have less directional characteristics. In addition, as the outer peripheral body, in addition to a UOE steel pipe, a pipe manufactured and prepared by an arbitrary pipe forming method and a pipe type such as an electric resistance welded steel pipe, a spiral steel pipe, and a tapered pipe can be widely used.

Although each plate material 2 may be a cast material, it is clear from the fact that a rolling method is preferred in the present invention for the purpose of weight reduction and strength, and in the case of the tapered tube, a material manufactured as a trapezoid is used. .

The attachment and fixing of each plate member 2 to the circular outer peripheral body 1 is performed by a welded portion 3. In the case of a relatively small-diameter weld 3, the plate member 2 is set in the outer peripheral body 1 and then an automatic welding machine or the like is used. This can be performed by entering the outer peripheral body 1 and moving along the joining boundary line of the plate material 2 which is a flat surface, and can be performed accurately. When a large-diameter outer peripheral body 1 having an inner diameter of more than 2 m is employed, a worker may appropriately select the outer peripheral body 1.
In any of these cases, the outer peripheral body 1 having a circular shape acts as a single welding jig, so that the entire body is appropriately rotated, and the welded portion 3 of any portion is removed. Even when forming, it can be carried out by downward welding, which is the welding position that is the easiest to work, and can be easily welded since no upward welding is required at all. Further, in order to fix the butted portions of the respective plate members 2 and 2 to the outer peripheral body 1, a column weld 3a is formed at appropriate intervals.

As described above, the respective plate members 2 attached at the welded portions 3 have their side edges abutted at the welded portions 3 and are fixed at the welded portions 3. As described above, the outer peripheral body 1 acts in a vertical streak, and deformation in the circumferential direction when external pressure acts on the outer peripheral body 1 is also restricted at the welded portion 3. The thickness can be sufficiently reduced.
For example, if the present invention is designed as a large-diameter steel pipe with an inner diameter of 250 cm or more, and the inside is adopted as an underground structure that can be used as a warehouse or a residential area, if the steel pipe is simply adopted, the thickness is 20 mm or We need more, which adds significant weight and
Regardless of the UOE method or the spiral tube forming method, the tube making equipment is significantly large. Also, the processing energy for performing the shaping action becomes large. On the other hand, as described above, a vertical streak effect is obtained at the welded portions 3 and 3a to restrain deformation due to external pressure and the like, and the reinforcing member is obtained by the respective plate members 2, 2, 2, 2. In general, the thickness is 10 mm or less, especially 8 mm or less. The same applies to the case of a relatively small diameter, which leads to a reduction in the cost of the material. In addition, since the plate members 2 and 2 prevent bending and other deformations, the straightness can be ensured even for a long beam or column in combination with the above-mentioned light weight. When a tapered tube is used, the smaller diameter side is lighter, so that a longer member can be obtained. In addition, a strong and stable support can be obtained at the larger diameter base end side. The member 1 in the present invention,
2 is typically a steel material, but can be implemented by a stainless steel material, an aluminum alloy material, a synthetic resin material, or the like.

As described above, when the plate member 2 provided with the openings 4 is appropriately used, it can be appropriately filled with concrete or the like when used as a pillar member or the like. Enhance. Further, the concrete filling area is partitioned by the plate material 2, and the inside thereof can be used as an insertion area for various pipes and wirings. When used as a relatively large diameter underground or underwater structure, the space between the plate member 2 and the outer peripheral body 1 is used as an area for inserting these pipes or wires or a storage area for tools and equipment. Between the plate members 2, 2, 2, 2 are used as living quarters and passages. In particular, the arrangement of the openings 4 is limited when used as a floor surface, a ceiling surface, or a side wall surface. In particular, the floor surface is formed as two flat plate members and used for walking purposes.

An opening 4 provided in the plate 2 is provided for the space between the outer peripheral body 1 and the plate 2 used as the accommodation area as described above.
Is used as an outlet.

"Effects of the Invention" According to the present invention as described above, the use of a circular outer peripheral member and a plurality of plates makes it easy to produce by welding. It can significantly reduce the weight of the material to be formed, and can also secure various straightnesses to form advantageous various structures.Furthermore, the internal space can be communicated, and its internal use or connection with concrete can be achieved. Therefore, the present invention is a device that has a great effect industrially.

[Brief description of the drawings]

The drawings show the technical contents of the present invention. FIG. 1 is an end view of a structural material according to the present invention, FIG. 2 is a partially cutaway side view thereof, and FIG. FIG. 4 is an end view similar to FIG. 1 of another embodiment of the present invention, and FIG. 5 is an end view partially showing an example of a welded portion. However, in these drawings, 1 is a circular outer peripheral member, 2 is a plate material, 3 is a welded portion, 4 is an opening, 5 is a strip-shaped remaining portion, and 5a is its inclined edge.

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of plate members are arranged and fixed inside a circular outer peripheral member in a polygonal shape along the axial direction of the outer peripheral member. In addition, a plurality of openings are formed in the plate member and a plate width is provided between the openings. A material for a structure, wherein a band-shaped remaining portion inclined in a direction is formed.