JP2001138306A - Method for manufacturing structural material for building - Google Patents
Method for manufacturing structural material for buildingInfo
- Publication number
- JP2001138306A JP2001138306A JP32627999A JP32627999A JP2001138306A JP 2001138306 A JP2001138306 A JP 2001138306A JP 32627999 A JP32627999 A JP 32627999A JP 32627999 A JP32627999 A JP 32627999A JP 2001138306 A JP2001138306 A JP 2001138306A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- building
- coated
- structural material
- core member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼材からなる芯部
材の周りに複数の木材が接着被覆された建築用構造材の
製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a structural member for building in which a plurality of woods are adhesively coated around a core member made of steel.
【０００２】[0002]
【従来の技術】建築用の構造材には従来から鋼材や木材
が主に使用されてきた。鋼材は品質精度が高く強度が安
定しているという利点があり、一方、木材は入手しやす
く加工性も良いという利点を有している。ところが、鋼
材には衝撃等により特有の振動が発生して、マンション
等では、住人が騒音に悩まされるという欠点がある他、
火災時には高温にさらされると急激に強度が低下し、ま
た、木材のように暖かみや調湿機能がないといった欠点
もある。一方、木材は鋼材に比べて強度が劣り、さらに
強度にばらつきがあるという欠点がある。2. Description of the Related Art Steel and wood have been mainly used as structural materials for construction. Steel has the advantage that the quality is high and the strength is stable, while wood has the advantage that it is easily available and has good workability. However, there is a drawback that steel has a particular vibration caused by impacts and other factors, and in apartments, etc., residents suffer from noise.
In the event of a fire, when exposed to high temperatures, the strength rapidly decreases, and there is a drawback in that there is no warming or humidity control function like wood. On the other hand, wood has a drawback that it is inferior in strength to steel and has a variation in strength.
【０００３】こうした鋼材や木材の欠点をなくし両者の
利点を極力生かすべく、芯部材に鋼材を使用し、該芯部
材の周りを木材で覆った建築用構造材が使用されるよう
になってきている。また、図２に示すように芯部材２１
を被覆木材２２から突出延長させて、端部に芯部材２１
のみからなる所定長さの継手部２１ａを設けた建築用構
造部材が製作されている。継手部２１ａを利用して他の
鉄骨部材等に連結を図る。斯る建築用構造材は、図３に
示すように、芯部材である形鋼（図ではＨ形鋼）２１
を、形鋼２１の断面形状に合うように切削加工した複数
の木材２２ａ、２２ｂおよび２２ｃで覆い、形鋼２１と
木材２２ａ、２２ｂおよび２２ｃの接触面および隣り合
う木材２２ａ、２２ｂおよび２２ｃの接触面に接着剤を
塗布し、その後に圧締装置２３ａ、２３ｂで所定時間
（通常２４時間程度）圧締して製造している。[0003] In order to eliminate the disadvantages of steel and wood, and to take advantage of the advantages of both, as the core material, steel is used for the core member, and structural materials for construction in which the core member is covered with wood have been used. I have. Further, as shown in FIG.
Is projected from the coated wood 22 to extend the core member 21 at the end.
An architectural structural member provided with a joint portion 21a having a predetermined length consisting of only the same is manufactured. The joint portion 21a is used to connect to another steel member or the like. As shown in FIG. 3, such a structural material for a building is a shaped steel (H-shaped steel in the figure) 21 as a core member.
Is covered with a plurality of pieces of wood 22a, 22b, and 22c that are cut so as to match the cross-sectional shape of the shaped steel 21, and the contact surfaces of the shaped steel 21 and the woods 22a, 22b, and 22c and the contact of the adjacent woods 22a, 22b, and 22c. An adhesive is applied to the surface, and thereafter, it is pressed for a predetermined time (usually about 24 hours) by the pressing devices 23a and 23b to manufacture the device.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
た建築用構造材の製造方法には次のような問題があっ
た。断面形状の異なる木材を複数使用しなければならな
いうえに、それぞれの木材に施す切削加工の種類も異な
るので、一定の断面形状の木材を使用し、一定の切削加
工を施す場合に比べて生産効率が低く、生産管理も複雑
であった。また、被覆木材同士の接着と、被覆木材と芯
部材との接着とを同時に行うため、被覆木材同士の位置
決めでズレやすく、調整に時間がかかっていた。そのた
め、複数本の建築用構造材を圧締加工する際、接着剤の
乾燥硬化時間との関係から制約が大きかった。However, the above-mentioned method for producing a structural material for a building has the following problems. In addition to using multiple pieces of wood with different cross-sectional shapes, and the types of cutting that are performed on each piece of wood are different, the production efficiency is higher than when using wood with a certain cross-sectional shape and performing a certain amount of cutting. And production management was complicated. In addition, since the bonding between the coated woods and the bonding between the coated wood and the core member are performed at the same time, the positioning between the coated woods is likely to shift, and the adjustment takes time. Therefore, when a plurality of building structural materials are pressed, there is a great restriction in relation to the drying and curing time of the adhesive.
【０００５】本発明は上記問題点を解決するもので、生
産管理が簡単になるとともに、複数本の建築用構造材の
圧締加工が可能となり、効率的に製造できる建築用構造
材の製造方法を提供することを目的とする。[0005] The present invention solves the above-mentioned problems, and simplifies production management, enables a plurality of architectural structural members to be pressed, and enables an efficient manufacturing method of an architectural structural member. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成すべく、
請求項１記載の発明の要旨は、鋼材からなる芯部材の周
りに木材が被覆された建築用構造材を製造するに際し、
複数の木材を接合して該建築用構造材を縦割りに二分す
る大きさの被覆用木材を形成すると共に該被覆用木材に
前記芯部材を挿入させる凹部を形成して一対の半割り被
覆木材とし、その後、両半割り被覆木材の凹部に前記芯
部材を挿入し芯部材と両半割り被覆木材とを接合一体化
させることを特徴とする建築用構造材の製造方法にあ
る。ここで、「鋼材からなる芯部材」は、鉄骨部材たり
得る長さがあり、Ｉ形、Ｈ形、Ｌ形、Ｔ形、コ形、十形
等の形鋼や、鋼管等強度部材として使用可能なものであ
れば、いかなる形状のものでもよい。請求項２記載の発
明の建築用構造材の製造方法は、請求項１で、芯部材に
被覆された一対の半割り被覆木材の外周面に、さらに該
半割り被覆木材に係る木材より良質の木材で所定厚み被
覆してなることを特徴とする。In order to achieve the above object,
The gist of the invention according to claim 1 is to manufacture a structural material for building in which wood is coated around a core member made of steel,
A plurality of wood pieces are joined to form a coating wood piece having a size that divides the building structural material into two vertically, and a pair of half-coated wood pieces is formed by forming a concave portion for inserting the core member into the coating wood piece. Thereafter, the core member is inserted into a concave portion of both half-coated wood, and the core member and both half-coated wood are joined and integrated. Here, the “core member made of steel material” has a length that can be used as a steel member, and is used as a structural member such as an I shape, an H shape, an L shape, a T shape, a U shape, a cross shape, or a strength member such as a steel pipe. Any shape is possible if possible. According to a second aspect of the present invention, there is provided a method for manufacturing a structural material for a building according to the first aspect, wherein the outer peripheral surfaces of a pair of half-coated wood covered with the core member are further superior in quality to the wood according to the half-coated wood. It is characterized by being coated with a predetermined thickness of wood.
【０００７】請求項１の発明によれば、一対の半割り被
覆木材を用い、凹部に芯部材を挿入させて両半割り被覆
木材との一体接合を図るので、建築用構造材の製造が容
易となる。圧締加工の際の位置決めでのズレは生じな
い。そして、前もって接合する複数の木材に一定断面形
状のものを準備すれば、生産効率を上げ且つ生産管理が
簡単になる。建築用構造材を縦割りに二分する大きさの
被覆用木材を形成し、さらに芯部材を挿入させる凹部を
形成するようにすると、一定形状の凹部のみの切削加工
となるので、生産性を向上させることができる。請求項
２の発明のごとく、芯部材に被覆された一対の半割り被
覆木材の外周面に、さらに所定厚みの良質の木材を被覆
させた建築用構造材にすると、外面に意匠性に優れた良
質木材が現われるので付加価値の高い製品にすることが
できる。According to the first aspect of the present invention, since a pair of half-coated wood pieces is used, and a core member is inserted into the recess to integrally join the two half-coated wood pieces, it is easy to manufacture a structural material for building. Becomes There is no deviation in the positioning during the pressing process. If a plurality of pieces of wood to be joined are prepared in advance with a certain cross-sectional shape, the production efficiency is increased and the production management is simplified. By forming a covering wood that divides the building structural material into two halves, and then forming a recess to insert the core member, cutting only the recess of a certain shape will improve productivity. Can be done. According to the second aspect of the present invention, when the outer peripheral surface of a pair of half-split coated wood covered with the core member is further coated with a high-quality wood of a predetermined thickness, the outer surface is excellent in design. Since high quality wood appears, it can be made into a high value-added product.
【０００８】[0008]
【発明の実施の形態】以下、本発明に係る建築用構造材
の製造方法の実施形態について詳述する。図１（ａ）〜
図１（ｃ）は、本発明の建築用構造材の製造方法におけ
る一製造手順を示す横断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a method for manufacturing a structural material for a building according to the present invention will be described in detail. FIG. 1 (a)-
FIG. 1C is a cross-sectional view showing one manufacturing procedure in the method for manufacturing a building structural material of the present invention.
【０００９】本建築用構造材は、長手方向ほぼ等断面形
状で、型鋼４（ここではＨ形鋼）とこれを覆って接合さ
れる一対の半割り被覆木材１ａ，１ｂとからなる。該建
築用構造材の製造方法は、まず、図１（ａ）に示す矩形
断面の建築用構造材１を縦割りに二分する大きさの矩形
断面の被覆用木材２ａ，２ｂを、これらよりも小さい断
面の木材３を複数本（図では２本）接着剤で接合して製
造する。接合する木材３は、断面形状が標準寸法になる
ように製材（ここでは角材）されており、製造する建築
用構造材の寸法に応じて、使用する木材３の本数を増減
することにより、適切な形状寸法の被覆用木材２ａ，２
ｂが製造できるようになっている。ここでの被覆用木材
２ａ，２ｂは、建築用構造材が２等分された対称形（同
形）の分割品とする。The architectural structural material has a substantially uniform cross-sectional shape in the longitudinal direction, and is composed of a shape steel 4 (here, an H-shaped steel) and a pair of half-coated wood pieces 1a and 1b joined to cover the steel. In the method of manufacturing the building structural material, first, a covering wooden piece 2a, 2b having a rectangular cross section of a size that vertically divides the building structural material 1 having a rectangular cross section shown in FIG. A plurality of (two in the figure) pieces of wood 3 having a small cross section are bonded and manufactured. The wood 3 to be joined is sawn (square in this case) so that the cross-sectional shape becomes a standard size, and by appropriately increasing or decreasing the number of the wood 3 to be used according to the size of the building structural material to be manufactured. Wood 2a, 2 of various shapes and sizes
b can be manufactured. Here, the covering wood 2a, 2b is a symmetrical (same shape) divided product in which the structural material for building is divided into two equal parts.
【００１０】次いで、図１（ｂ）に示すように、被覆用
木材２ａ，２ｂに形鋼４をはめ込むための凹部５を切削
加工により形成し、一対の半割り被覆木材１ａ，１ｂと
する。凹部５は半割り被覆木材１に挿着される型鋼４を
形どった凹みになる。ここでの両半割り被覆木材１ａ，
１ｂも図１（ｂ）のごとく対称形（同形）とする。Next, as shown in FIG. 1 (b), a concave portion 5 for fitting the shaped steel 4 into the covering wood 2a, 2b is formed by cutting to form a pair of half-covered covered wood 1a, 1b. The concave portion 5 is a concave shape that is shaped like the shape steel 4 inserted into the half-coated wood 1. Here, the two-half coated wood 1a,
1b is also symmetrical (same shape) as shown in FIG.
【００１１】その後、図１（ｃ）に示すように、形鋼４
の周囲を一対の半割り被覆木材１ａ，１ｂで挟み込ん
で、一対の半割り被覆木材１ａ，１ｂの凹部５に形鋼４
をはめ込みながら半割り被覆木材１ａ，１ｂの対向する
面を型鋼４に接触させる。ここで、両方の半割り被覆木
材１ａ，１ｂの接触面および凹部５に接着剤を前もって
塗布しておき、加圧圧締し型鋼４と一対の半割り被覆木
材１ａ，１ｂを接合一体化させる。接着剤の乾燥硬化時
間が経過して所望の建築用構造材が得られる。Thereafter, as shown in FIG.
Is sandwiched between a pair of half-coated wood pieces 1a and 1b, and the shaped steel 4 is inserted into the concave portions 5 of the pair of half-coated wood pieces 1a and 1b.
And the opposite surfaces of the half-coated wood pieces 1a and 1b are brought into contact with the shape steel 4. Here, an adhesive is applied in advance to the contact surfaces of the two half-coated wood pieces 1a and 1b and the concave portion 5, and the press-tightened mold steel 4 and the pair of half-coated wood pieces 1a and 1b are joined and integrated. After the drying and curing time of the adhesive has elapsed, a desired architectural structural material is obtained.
【００１２】さらに、本発明の別形態として、図１
（ｃ）のごとく建築用構造材の製造を終えた後、芯部材
４に被覆した半割り被覆木材１ａ，１ｂの最外側（外周
面）に所定厚さの木材（木材３より良質の例えばケヤキ
やヒノキ等）を接着被覆すると、意匠性の優れた付加価
値の高い建築用構造材を得ることができ、より好ましく
なる。建築用構造材の見栄えが一段と向上する。また、
本発明の製造方法を用いて芯部材４の両端部を除いた芯
部材４の主要部を半割り被覆木材１ａ，１ｂで被覆する
ように製造することができる。すなわち、芯部材４を半
割り被覆木材１ａ，１ｂ（図２では符号２２に相当）か
ら突出延長させて端部に芯部材４（図２では符号２１に
相当）のみからなる継手部を設けた建築用構造材を造る
ことができる。Further, as another embodiment of the present invention, FIG.
After completing the production of the structural material for building as shown in (c), the outermost (outer peripheral surface) of the half-coated wood 1a, 1b coated on the core member 4 is made of a wood of a predetermined thickness (for example, zelkova of higher quality than the wood 3). And hinoki are adhesively coated, it is possible to obtain a high value-added architectural structural material having excellent design properties, which is more preferable. The appearance of structural materials for building is further improved. Also,
Using the manufacturing method of the present invention, the core member 4 can be manufactured so as to cover the main part of the core member 4 excluding both end portions with the half-coated wood pieces 1a and 1b. That is, the core member 4 is protruded and extended from the half-coated wood 1a, 1b (corresponding to the reference numeral 22 in FIG. 2), and a joint portion consisting of only the core member 4 (corresponding to the reference numeral 21 in FIG. 2) is provided at the end. Building structural materials can be made.
【００１３】斯る建築用構造材の製造方法においては、
芯部材４に接合する半割り被覆木材１ａ，１ｂを、標準
寸法に製材された木材３を使用して、前もって製造して
おくことができるので、使用する木材の種類を減少させ
ることができるとともに、切削加工も被覆用木材２ａ，
２ｂの凹部５の単一加工のみですむので、生産性に富み
且つ建築用構造材の製造における生産管理が楽になる。
特に、半割り被覆木材１ａ，１ｂが対称形且つ同形であ
るので、その製造及び生産管理がいたって簡単になる。
また、半割り被覆木材１ａ，１ｂ（被覆用木材２ａ，２
ｂ）が予め複数の木材３を使用して接合一体化されたも
のであるので、半割り被覆木材１ａ，１ｂと芯部材４と
の位置合わせが容易となる。調整に時間を要さないた
め、一度に複数本の建築用構造材を圧締加工することが
でき、製造効率が向上する。上述した建築用構造材1に
使用する木材３は、間伐材や木材チップ等を接着固形化
した木材ボ−ド等を使用することにより、材料費を安く
することができる。[0013] In such a method of manufacturing a building structural material,
The half-split coated wood 1a, 1b to be joined to the core member 4 can be manufactured in advance using the wood 3 sawn to a standard size, so that the type of wood used can be reduced. , Cutting wood 2a for coating,
Since only the single processing of the recess 5 of 2b is required, the productivity is high and the production management in the production of the structural material for building is facilitated.
In particular, since the half-coated wood pieces 1a and 1b are symmetrical and identical, their production and production management become very simple.
The half-coated wood 1a, 1b (the coated wood 2a, 2b)
Since b) is previously joined and integrated using a plurality of woods 3, the half-coated wood 1a, 1b and the core member 4 can be easily aligned. Since no time is required for the adjustment, a plurality of building structural materials can be pressed at a time, thereby improving the manufacturing efficiency. As for the wood 3 used for the building structural material 1 described above, a material cost can be reduced by using a wood board or the like in which thinned wood, wood chips and the like are adhered and solidified.
【００１４】尚、本発明においては、前記実施形態に示
すものに限られず、半割り被覆木材１，被覆用木材２，
木材３，型鋼４等の形状，大きさ，個数等は用途に合わ
せて適宜選択できる。In the present invention, the present invention is not limited to the above-described embodiment, but the half coated wood 1, the coated wood 2,
The shape, size, number, and the like of the wood 3, the mold steel 4, and the like can be appropriately selected according to the application.
【００１５】[0015]
【発明の効果】以上のごとく、本発明の建築用構造材の
製造方法は、生産管理が楽になるばかりか、複数本の建
築用構造材の圧締加工が可能になり、効率的に製造でき
るなど優れた効果を発揮する。As described above, according to the method for manufacturing a structural material for a building according to the present invention, not only the production management becomes easy, but also a plurality of structural materials for a building can be pressed and efficiently manufactured. It has excellent effects.
【図１】本発明の建築用構造材の製造方法の一形態で、
その製造手順を示す横断面図である。FIG. 1 is an embodiment of a method for manufacturing a structural material for a building according to the present invention;
It is a cross-sectional view showing the manufacturing procedure.
【図２】従来技術の説明斜視図である。FIG. 2 is an explanatory perspective view of a conventional technique.
【図３】従来技術の説明断面図である。FIG. 3 is an explanatory sectional view of a conventional technique.
１，１ａ，１ｂ 半割り被覆木材 ２，２ａ，２ｂ 被覆用木材 ３ 木材 ４ 型鋼（芯部材） ５ 凹部 1, 1a, 1b Half-coated wood 2, 2a, 2b Wood for coating 3 Wood 4 Mold steel (core member) 5 Recess
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Claims (2)
された建築用構造材を製造するに際し、複数の木材を接
合して該建築用構造材を縦割りに二分する大きさの被覆
用木材を形成すると共に該被覆用木材に前記芯部材を挿
入させる凹部を形成して一対の半割り被覆木材とし、そ
の後、両半割り被覆木材の凹部に前記芯部材を挿入し芯
部材と両半割り被覆木材とを接合一体化させることを特
徴とする建築用構造材の製造方法。1. A manufacturing method for manufacturing a building structural material in which wood is coated around a core member made of a steel material, wherein a plurality of woods are joined and the building structural material is bisected vertically. A pair of half-coated wood is formed by forming the wood and forming a recess into which the core member is inserted into the coating wood. Thereafter, the core member is inserted into the recesses of both the half-coated wood, and the core member and the two-half. A method for producing a structural material for a building, comprising joining and integrating a split coated wood.
覆木材の外周面に、さらに該半割り被覆木材に係る木材
より良質の木材で所定厚み被覆してなる請求項１に記載
の建築用構造材の製造方法。2. The building according to claim 1, wherein the outer peripheral surfaces of the pair of half-coated wood pieces covered with the core member are further coated with a predetermined thickness of wood of higher quality than the wood related to the half-coated wood pieces. Of manufacturing structural materials for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32627999A JP2001138306A (en) | 1999-11-17 | 1999-11-17 | Method for manufacturing structural material for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32627999A JP2001138306A (en) | 1999-11-17 | 1999-11-17 | Method for manufacturing structural material for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001138306A true JP2001138306A (en) | 2001-05-22 |
Family
ID=18186000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32627999A Pending JP2001138306A (en) | 1999-11-17 | 1999-11-17 | Method for manufacturing structural material for building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001138306A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291478A (en) * | 2007-05-23 | 2008-12-04 | Takenaka Komuten Co Ltd | Structural member and building |
| JP2013130021A (en) * | 2011-12-22 | 2013-07-04 | Univ Kanagawa | Composite structure of steel and wooden material |
| JP2018112012A (en) * | 2017-01-12 | 2018-07-19 | 積水ハウス株式会社 | Reinforcement woody structural material |
| CN108978869A (en) * | 2018-08-30 | 2018-12-11 | 河北建筑工程学院 | A kind of assembled steel clark beam column node structure and its construction method |
| JP2019108699A (en) * | 2017-12-15 | 2019-07-04 | 株式会社熊谷組 | Structural reinforcement structure |
| WO2022231029A1 (en) * | 2021-04-29 | 2022-11-03 | 정동현 | Laminated timber coupled to inner and external beams |
| JP7424343B2 (en) | 2021-04-28 | 2024-01-30 | Ｊｆｅスチール株式会社 | Composite construction material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354715U (en) * | 1986-09-30 | 1988-04-12 | ||
| JPH0336406U (en) * | 1989-08-11 | 1991-04-09 | ||
| JPH0518172A (en) * | 1991-07-15 | 1993-01-26 | Matsushita Electric Works Ltd | Gatepost |
| JP2000160766A (en) * | 1998-09-21 | 2000-06-13 | Mie Prefecture | Bulding structural member |
-
1999
- 1999-11-17 JP JP32627999A patent/JP2001138306A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354715U (en) * | 1986-09-30 | 1988-04-12 | ||
| JPH0336406U (en) * | 1989-08-11 | 1991-04-09 | ||
| JPH0518172A (en) * | 1991-07-15 | 1993-01-26 | Matsushita Electric Works Ltd | Gatepost |
| JP2000160766A (en) * | 1998-09-21 | 2000-06-13 | Mie Prefecture | Bulding structural member |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291478A (en) * | 2007-05-23 | 2008-12-04 | Takenaka Komuten Co Ltd | Structural member and building |
| JP2013130021A (en) * | 2011-12-22 | 2013-07-04 | Univ Kanagawa | Composite structure of steel and wooden material |
| JP2018112012A (en) * | 2017-01-12 | 2018-07-19 | 積水ハウス株式会社 | Reinforcement woody structural material |
| JP2019108699A (en) * | 2017-12-15 | 2019-07-04 | 株式会社熊谷組 | Structural reinforcement structure |
| JP6991849B2 (en) | 2017-12-15 | 2022-01-13 | 株式会社熊谷組 | Reinforced structure of structure |
| CN108978869A (en) * | 2018-08-30 | 2018-12-11 | 河北建筑工程学院 | A kind of assembled steel clark beam column node structure and its construction method |
| CN108978869B (en) * | 2018-08-30 | 2024-01-19 | 海南华金钢构有限公司 | Assembled steel-wood composite beam column node structure and construction method thereof |
| JP7424343B2 (en) | 2021-04-28 | 2024-01-30 | Ｊｆｅスチール株式会社 | Composite construction material |
| WO2022231029A1 (en) * | 2021-04-29 | 2022-11-03 | 정동현 | Laminated timber coupled to inner and external beams |
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