KR20130134691A - Stell tube and square nut in wood structure - Google Patents

Abstract

The present invention relates to a steel pipe joint metal and a square nut for the joint of a column and a girder in a wooden building, and comprises: a steel pipe joint metal that is inserted into a hollow part which is formed in the center of a first structure member used in a wooden building and that has a first bolt hole through which a connecting bolt passes; and a square nut to which the connecting bolt is coupled by inserted into a nut insertion groove formed in a second structure member joined to the first structure member. The present invention is a joint metal can connect first and second structure members configuring of a column head and a girder and configuring of a column head and a cross beam when the structure member of a wooden structure is constructed by using a multi-laminated timber, and can be usefully used for the joint of a solid member and a hollow multi-laminated timber having a hollow part in the center in the process of manufacturing a multi-laminated timber.

Description

Steel pipe joints and square nuts for joining structural members in wood constructions {Stell tube and square nut in wood structure}

The present invention relates to a steel pipe joint hardware and a square nut for joining the structural members of the wooden building shaft, more specifically, the hollow portion is formed in the center of the multi-bonding aggregate in the wood structure construction, such as traditional hanok or new hanok The present invention relates to a steel pipe-jointed steel fitting and a square nut used for connecting structural members such as column heads and beams or column heads and purlins when constructing structural materials using hollow multiple adhesive aggregate materials.

Recently, wood has been in the spotlight as a low-carbon green growth response material, but Korea's wood production is about 6-10% of the annual total demand, and most of the structural members used for wood construction are dependent on imported wood.

On the other hand, instead of increasing daily demand for wood, there is a movement to actively control forest damage in order to prevent global warming.

In addition to this reality, Korea has succeeded in forest reclamation, but neglected after management, most of the timbers that can be produced in the next 10 years are small diameter trees of about 12-18cm in diameter.

Of course, the recent thinning timber produced by forest gardening is mostly small-sized trees, and it is an immature material, and there are many short-cut materials and grain materials. Therefore, when used as a building material, the strength performance is low and the production yield is inefficient. It has been used as raw materials or firewood, or has been disposed of naturally.

On the other hand, to use thinning materials produced by forests, etc. as building materials, it was proposed in the Utility Model Registration No. 0334715. This relates to a laminated laminated board, in which three or more layers including a top layer and a backing layer are laminated so that timbers of a small hardwood cross each other, and the top and backing layers adhere two or more sides of the wood boards in their width direction. And a three-layer structure consisting of a cover plate layer, a middle plate layer, and a back plate layer, in which grains are alternately laminated. The laminated laminated board material proposed in the registration utility model can be seen that the structure of the plywood laminated alternately of the plate layer, the middle layer, and the backing layer of a certain thickness, such a plate-like plate layer, middle layer, backing layer Silver is used as a layer to limit the thickness of the sheet within 5cm to facilitate drying. However, due to the cross-lamination of sheet materials, the direction of patterns such as rings of wood is uneven, which hinders aesthetics, and it is still a problem that strength is insufficient to be used as structural materials such as pillars, beams, purlins, mourners, and rafters of wooden building structures. Have

Of course, in order to solve such a problem, the applicant has proposed the Patent No. 10-0983612. It can be manufactured in large section by joining multi-layered and multi-layered square materials that are close to the center of the small-sized tree, which is a thin-walled material, and whose cross section is square. The present invention relates to a multi-adhesive aggregate material, in which a plurality of square materials are stacked in a square, and a resin adhesive is applied to each of the cut surfaces to be bonded to each other to prepare a multi-adhesive aggregate material having a predetermined thickness. By forming, it is possible to produce a multi-hollow square multi-adhesive aggregate (hereinafter referred to as "hollow multi-adhesive aggregate") that can obtain a sufficient strength while using less regular angle material. Of course, such a hollow part is capable of penetrating wires for supplying electricity, and when using the multi-glue adhesive material according to the present invention for the purpose of pillars or beams, the wires are exposed to the outside to prevent the appearance of deterioration. You can expect the effect.

However, such hollow multiple adhesive aggregates have hollow portions formed at the center of the member during the manufacturing process, and when the joining hardware such as bolts and nuts are used as they are, they are unsuitable for the performance and strength when joining the hollow multiple adhesive aggregates. Do.

To be more specific, there are many types of joining technologies, such as bolt fastening and pipe fastening, which are used so far, but mainly used steel round or square washers and nuts. By pulling the treasure together. However, this washer has a small acupressure area, and the washer causes a force to work in the direction perpendicular to the wood fibers, causing the wood to dig into the wood and destroy the joint.

In addition, the book joints of traditional Hanok construction alone may cause breakage of joints and collapse of wood structures when horizontal loads such as typhoons and earthquakes act.

In addition, the book joints processed by traditional carpenters are complicated in shape, require much time for processing, and require special skills. The test results show that the joining efficiency is only 20 to 30% of the base material. It is disadvantageous and needs to be improved.

Therefore, in order to solve these problems, the present invention can increase the bonding strength of the joint portion between the structural members when constructing the structural material using a structural member made of a hollow multiple adhesive aggregate material having a hollow portion in the center of the column and beam joining Its purpose is to provide steel fittings and square nuts suitable for use in industrial applications.

In addition, the present invention is to provide a steel pipe joints and square nuts excellent in fire resistance because the steel pipe joints and square nuts are concealed inside the structural member to express the texture of the wood as it is not directly exposed to the fire. There is a purpose.

In order to solve such a technical problem,

A steel pipe-jointed iron inserted into a hollow portion formed in the center of the first structural member used for wood structure construction and having a first bolt hole through which the connecting bolt penetrates; And a square nut which is inserted into a nut insertion groove formed in a second structural member joined to the first structural member, and wherein the connection bolt is fastened. Provide square nuts.

At this time, the hollow portion of the first structural member is made of a quadrangle and the steel pipe joint is characterized in that it is made of a quadrangular shape so as to prevent the idle when inserted into the hollow portion.

In addition, the first structural member is a hollow multiple adhesive aggregate material bonded by applying a resin adhesive to each of the cutting surface to be laminated in a multi-layered square of a plurality of square materials to form a hollow portion in the center, the second structural member Is characterized in that the multi-glue aggregate material laminated a plurality of square materials in a square and laminated by applying a resin adhesive to each of the cutting surface to be bonded.

In addition, a dome groove is formed on the side of the first structural member, and the dowel tip inserted into the dome groove is protruded from the end of the second structural member.

In addition, the steel pipe joint is formed at one or more first bolt holes through which the connection bolt penetrates on the side of the pipe body, the joint surface of the first structural member having a hollow portion into which the steel pipe joint is inserted into the first bolt hole A corresponding second bolt hole is formed; The second structural member has a third bolt hole of a predetermined depth formed in the body on the joint surface corresponding to the second bolt hole, and the nut is in communication with the third bolt hole and the square nut is inserted into the body side. Characterized in that the insertion groove is formed.

Particularly, the connecting bolts penetrating the first to third bolt holes have first and second threads formed on one end and the other end of the outer circumferential surface thereof, and a square nut is fastened to the first thread, and a fixing nut is fastened to the second thread. It is characterized in that the fastening.

And, the end of the nut insertion groove is characterized in that the neck sheath is fitted.

In addition, the first bolt hole of the steel pipe joint is characterized in that it is processed in the form of long holes vertically long on the side of the tube.

According to the present invention, it is a joining steel that can connect the first and second structural members constituting the column head and beam, column head and purlin, etc. It can be usefully used for joining the hollow multi-glue adhesive member in which the hollow portion is formed in the center of the adhesive aggregate member and the member without the hollow.

In particular, the steel pipe joint steel of the present invention is inserted into the hollow portion formed in the center of the first structural member to increase the acupressure area when tightening the connecting bolt and receive an equal load in four directions, so that the joining efficiency of the test material It is more than 70%, it is simple to construct, does not need professional technical manpower, and it is economical than the conventional joining iron because the manufacturing cost of joining iron is cheap.

In addition, the square nut of the present invention can increase the tensile strength due to less cross-sectional loss in the fiber direction of the beam when installing it, does not generate split heat in the wood, all the configuration used for joining, such as steel pipe joints and square nuts It can be inserted and concealed inside the 1st and 2nd structural members, so the wood pre-constructed structural material is aesthetically beautiful and suitable for fireproof construction.

1 is a view showing for explaining a hollow multiple adhesive aggregate material is formed in the hollow portion in the center.
2 is a view showing a steel pipe joint hardware and a square nut according to the present invention.
3 is an exploded perspective view illustrating a fastening structure between structural members using a steel pipe joint hardware and a square nut according to the present invention.
4 is a cross-sectional view illustrating a fastening structure between structural members using steel pipe joints and square nuts according to the present invention.
5 is a view showing another embodiment of a steel pipe joint hardware according to the present invention.
6 is a view showing another embodiment of a steel pipe joint hardware according to the present invention.
7 is a view showing another embodiment of a steel pipe joint hardware according to the present invention.

With reference to the accompanying drawings, the steel pipe joint hardware and the square nut for joining the structural member of the wooden condition axis according to the present invention will be understood by the embodiments described in detail below.

According to Figures 1 to 4, the steel pipe joint hardware and the square nut for joining the structural member of the wooden building shaft according to the present invention uses a hollow multi-gluing adhesive material (1) among the multi-gluing adhesive material in the wooden building axis such as traditional Hanok or Shinhanok It is used to connect structural members such as column heads and beams or column heads and purlins.

The present invention as described above is the first structural member 10 made of a hollow multi-layer adhesive member (1) having a hollow portion (1a) is formed in the center, and the second structural member (20) made of a multi-glue aggregate member having no hollow portion. ) Can increase the bonding force of the joint between the first and second structural members 10, 20.

The multi-adhesive aggregate material used as the first and second structural members 10 and 20 is made of small timber, which is a thinning material produced by foresting, and the like. After cutting the slopes, the vertically-bonded right-angled materials for joining the ends of the right-angled materials are superimposed and manufactured.

Most of the diameters of small lumber, thinning wood produced by forest cultivation, are mostly 120-180mm, short-cut material within 1.2-1.5m for easy transportation, and curved materials of uniformly curved shape. Mixed. Therefore, the small diameter wood is selected by a method such as selecting a small diameter solid wood with a collection, especially in the case of severely curved curved material (曲 材). At this time, it is obvious that the small hardwood may be used in a variety of wood, such as pine, larch, lycida pine, pine.

On the other hand, the right angle member (1b) has a certain width, and can be used as a large unit structure by laminating and joining the right angle members in a variety of shapes in a multi-layer and multiple A multi-adhesive aggregate is produced. In particular, by applying a resin adhesive (1c) to the cutting surface of each of the angled material, and placing the angled material in a multi-layer and multi-layer so that the collection is in the longitudinal direction, bonding and drying the multi-adhesive The aggregate material is completed. At this time, the resin adhesive for bonding the square material is a known adhesive used as a structural adhesive of the aggregate or composite material because it has excellent adhesion performance and void filling properties, and is mainly used in airplanes, ships, and the like.

In this way, by joining a plurality of corner materials (1b) it can feel the beautiful pattern and weight of the wood inherent due to the rings.

In this case, a multi-layered adhesive member having a predetermined thickness is manufactured by stacking a plurality of square members 1b in a square and applying a resin adhesive to each bonded cutting surface to dry them, but having a predetermined thickness in the center of the hollow portion 1a. By forming a, to prepare a hollow multiple adhesive aggregate material (1) that can obtain a sufficient strength while using a small amount of the square material (1b).

Of course, the hollow adhesive material can be processed to the outer peripheral surface to have a variety of cross-sectional structure, such as circular, rectangular, hexagonal, octagonal.

On the other hand, the hollow multi-layer adhesive material manufactured using a plurality of right angle members (1b) is formed with a hollow portion (1a) in the center, the hollow portion (1a) is preferably made of a rectangular shape as shown, If necessary, it can be formed in a circular shape.

As described above, the first structural member 10, which is a hollow adhesive material having a hollow portion 1a formed at the center thereof, is preferably used as a pillar, and the second structural member 20 joined to the first structural member 10. Is a multi-bond adhesive material having no hollow portion, and is preferably used as a beam or purlin bonded to the end of the column. Of course, the second structural member 20 may be used as it is, as needed.

Hereinafter, a square nut connected to the structural member joining steel pipe joining steel 110 and the connection bolt 120 of the wooden building shaft according to the present invention used to join the first and second structural members (10, 20) ( The joining means 100 which consists of 130 is demonstrated.

First, the steel pipe joint 110 is inserted into the hollow portion 1a of the first structural member 10, which is a hollow multiple adhesive aggregate, and the square nut 130 is installed on the second structural member 20, which is a multiple adhesive aggregate. The steel pipe joints 110 and the square nut 130 are coupled by the connection bolts 120.

In this case, the first structural member 10 in which the hollow portion 1a is formed may be used as a pillar or a second structural member 20 as a beam or a purlin, and in addition, various structural wood structures may be used. It does not limit.

In this case, a dove groove 12 is formed at a side surface of the first structural member 10, and a dowel tip 22 inserted into the dove groove 12 is protruded and formed at an end of the second structural member 20. The coupling between the first and second structural members 10 and 20 can be further firmed.

The steel pipe joint hardware 110 of the first structural member 10 having a hollow portion (1a) is formed with one or more first bolt holes 112 on the side of the pipe body, the steel pipe joint hardware 110 is inserted A second bolt hole 14 corresponding to the first bolt hole 112 is formed in the joining surface.

At this time, the hollow portion (1a) is made in a rectangular shape so as to prevent the turning or twisting when inserting the steel pipe joint 110 in the hollow portion (1a), the steel pipe joint hardware 110 is a rectangular tube body After cutting to a certain length is preferably used to form the first bolt hole 112 formed by processing. Of course, the steel pipe joint 110 and the hollow portion (1a), as shown in Figure 5 can also use a tubular body having a circular cross section or a triangular or pentagonal, hexagonal tube, as shown in Figure 6 As described above, the outer circumferential surface of the first structural member 10 may be circularly processed. The shape deformation of the steel pipe joints 110 and the first structural member 10 is merely a design change and falls within the scope of the present invention.

In particular, the steel pipe joint 110 is formed in one or more first bolt holes 112 on the slope in the case of a square pipe to allow the connection bolt 120 to pass through in any direction.

By inserting the steel pipe joint 110 formed of the steel pipe into the hollow portion 1a at the center of the member, the acupressure area is increased when the connecting bolt 120 is fastened, and the load can be equally received in all four directions. The result is an increase of more than 70% of the base material, simple construction, no need for expert personnel, and a low cost for manufacturing joined steel.

The second structural member 20 has a third bolt hole 24 having a predetermined depth from the joint surface to the inside of the body 21 at a position corresponding to the second bolt hole 14. 21, a nut insertion groove 26 is formed in communication with the third bolt hole 24 and into which the square nut 130 is inserted.

In this case, the third bolt hole 24 and the nut insertion groove 26 may be formed to communicate with each other at right angles, but if necessary, the third bolt hole 24 and the nut insertion groove 26 may be formed at a joint angle between the first structural member 10 and the second structural member 20. Naturally, it is possible to have various communication angles and all belong to the same technology category.

On the other hand, the nut insertion groove 26 of the second structural member 20 may be formed in a square shape to a suitable depth to minimize the exposure of the nut insertion groove 26.

In this case, the second and third bolt holes 14 and 24 are simply formed in a circular shape through drilling, and the nut insertion groove 26 is formed into a square to insert the square nut 130. This is preferably processed to have a precision using professional machine tools.

In particular, the nut insertion groove 26 of the second structural member 20 is processed into a narrow groove shape into which only the square nut 130 is inserted, so that the cross-sectional defect of the wood in the fiber direction is small when the square nut 130 is installed. It is possible to increase the second structural member 20 does not generate heat and can maintain the strength performance.

Meanwhile, connecting bolts 120 pass through the first to third bolt holes 112, 14, and 24, and the connecting bolts 120 have first and second threads 122 and 123 formed on outer surfaces of one end and the other end. Each of them is formed, and the square nut 130 is fastened to the first screw thread 122, and the fixing nut 140 having various shapes such as square, hexagon, and octagon is fastened to the second screw thread 123.

That is, the connecting bolt 120 is the first and second threaded thread 122, 123 is processed at both ends of the round bar cut to a suitable length in accordance with the design, so that one side of the second structural member 20 constituting the ball or purlin The second bolt hole 14 and the steel pipe joint 110 of the second bolt hole 14 machined through the three-bolt hole 24 and coupled to the square nut 130, and the other side is formed in the first structural member 10 constituting the column, etc. The first bolt hole 112 is fastened to the fixing nut 140.

At this time, the square nut 130 is fastened to the first screw thread 122 of the connecting bolt 120 is made of a thick steel plate and drilled a hole required to fasten the connecting bolt 120 to form a female thread 132 may be provided to serve as washers and nuts at the same time.

When the square nut 130 is inserted into the nut insertion groove 26 of the second structural member 20, an installation tool 200 is used. For example, when the second structural member 20 has a predetermined thickness or more, even if the square nut 130 is inserted into the nut fitting hole 26 of the second structural member 20, it is difficult to accurately select and check the connection part. One end of the 210 is provided with a head 220 to which a magnet 222 is attached, and an installation tool 200 having a handle 230 at the other end thereof.

In order to use the installation tool 200 as described above, the nut 222 of the second structural member 20 is inserted into the nut fitting hole 26 of the second structural member 20 while the square nut 130 made of a metal material is attached to the magnet 222. After moving the position, screw the one end of the connection bolt 120 with the square nut 130 and pull the installation tool 200, the installation of the square nut 130 is completed.

Of course, even when the connecting bolt 120 is separated from the square nut 130, the square nut 130 can be easily taken out of the nut insertion groove by a magnet.

Although the square nut 130 is preferably made of steel, the steel pipe joint hardware 110 and the connection bolt 120 may be made of a material such as duralumin, which is resistant to strength or corrosion.

On the other hand, Figure 7 is a view showing another embodiment of a steel pipe joint hardware 110 according to the present invention. According to this, the steel pipe joint 110 forms a first bolt hole 112 on the side of the tube body, and the first bolt hole 112 is processed in a long hole shape in the vertical direction.

When such a first bolt hole 112 is processed into a long hole shape, the second bolt hole 14 can be arbitrarily adjusted to be formed on the joining surface of the first structural member 10, thereby providing excellent workability. .

Hereinafter, an example of the use of the steel pipe joint hardware and the square nut for joining the structural member of the wooden condition axis according to the present invention.

The first structural member 10 is a hollow portion (1a) is formed in the center of the member during the manufacturing process of the hollow multiple adhesive aggregate material, so that the hollow portion (1a) can be inserted into the steel pipe joints (110) 1a) The inner circumferential surface is molded, and the first bolt hole 112 is formed in the steel pipe jointed iron 110 by design.

At this time, the length of the steel pipe joints 110, for example, when the first structural member 10 is a column head is set according to the depth of the beam which is the second structural member 20 is installed on the column head and the steel pipe joints The second bolt hole 14 of 110 is machined single or double.

On the other hand, in the four directions of the first structural member 10 to process the dowel groove 12 designed in advance so that the dowel 22 of the beam or purlin, which is the first structural member 10 can be engaged, the second bolt hole 14 ).

After processing the dowel 22 at the end of the second structural member 20 to be joined to the first structural member 10 and forming the third bolt hole 24 at the end thereof, a square nut serving as a washer and a nut Insert the 130 into the nut insertion groove 26 using the installation tool 200 and fasten the square nut 130 to one end of the connecting bolt 120 through the third bolt hole 24.

Thereafter, the other end of the connecting bolt 120 passes through the second bolt hole 14 processed in the first structural member 10 and the first bolt hole 112 of the steel pipe joint steel 110, and then fixed. Fasten with the nut 140.

In addition, by closing the square neck beam 29 to the end of the nut insertion groove 26 to prevent the square nut 130 is exposed to the outside to improve the texture and improve the fire resistance performance To have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary,

1: hollow multiple adhesive aggregate 1a: hollow portion
10: first structural member 12: tenon groove
14: second bolt hole 20: second structural member
22: dowel 24: third bolt hole
26: nut insert groove 29: neck
110: steel pipe joint hardware 112: first bolt hole
120: connection bolt 130: square nut
140: Fixing nut

Claims (8)

Steel fittings 110 are inserted into the hollow portion (1a) is formed in the center of the first structural member 10 used for wood structure construction and the first bolt hole 112 through which the connection bolt 120 is formed. and;
A square nut 130 inserted into a nut insertion groove 26 formed in the second structural member 20 joined to the first structural member 10 to which the connection bolt 120 is fastened. Steel pipe joints and square nuts for column and beam joining in wooden structures.
The method of claim 1,
Hollow portion (1a) of the first structural member 10 is made of a quadrangle and the steel pipe joints 110 is characterized in that it is made of a rectangular shape so as to prevent the idle when inserted into the hollow portion (1a) Steel pipe joints and square nuts for column and beam joining in wooden structures.
The method of claim 1,
The first structural member 10 is a hollow multiple adhesive aggregate material bonded by applying a resin adhesive to each of the cutting surface to be laminated in a multi-layered square of a plurality of square materials to form a hollow portion (1a) in the center,
The second structural member 20 is a multi-bonding aggregate material that is laminated by stacking a plurality of square materials in a square and applying a resin adhesive to each of the cutting surface to be joined, the pillar and beam joints in the wood structure construction Steel pipe fittings and square nuts.
The method of claim 1,
A tenon groove 12 is formed at a side of the first structural member 10, and a tenon 22 inserted into the tenon groove 12 is protruded at an end of the second structural member 20. Steel pipe joints and square nuts for column and beam joining in wooden structures.
The method of claim 1,
The steel pipe joint hardware 110 has one or more first bolt holes 112 through which the connection bolt 120 penetrates at a side surface of the pipe body, and has a hollow portion 1a into which the steel pipe joint hardware 110 is inserted. A second bolt hole 14 corresponding to the first bolt hole 112 is formed in the joining surface of the first structural member 10;
The second structural member 20 has a third bolt hole 24 having a predetermined depth formed in the body 21 on the joint surface corresponding to the second bolt hole 14, and the side surface of the body 21. In the wood structure construction, characterized in that the nut insertion groove 26 is formed in communication with the third bolt hole 24 and the square nut 130 is inserted, the steel pipe joint steel and square nut for joining the pillars and beams.
6. The method of claim 5,
The connection bolts 120 penetrating through the first to third bolt holes 112, 14, and 24 are formed with first and second threads 122 and 123 formed at one end and the outer end of the other end thereof, so that the first screw thread 122 is formed. The square nut 130 is fastened to the second screw thread 123, and the fixing nut 140 is fastened to the second screw thread 123 in the construction of a wooden structure and a square pipe and steel joints for beam and beam joints.
The method of claim 1,
In the end of the nut insertion groove 26, the wooden beams 29 are fitted in the wood structure, characterized in that the steel pipe joints and the square nut for joining columns and beams.
The method of claim 1,
The first bolt hole 112 of the steel pipe joint 110 is formed in a long hole (長空) form long and vertically on the side of the pipe in the construction of the steel pipe joints and squares for column and beam joining nut.

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