JP6539934B2 - Construction method - Google Patents

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JP6539934B2
JP6539934B2 JP2017149236A JP2017149236A JP6539934B2 JP 6539934 B2 JP6539934 B2 JP 6539934B2 JP 2017149236 A JP2017149236 A JP 2017149236A JP 2017149236 A JP2017149236 A JP 2017149236A JP 6539934 B2 JP6539934 B2 JP 6539934B2
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wood
steel frame
welding
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JP2019027198A (en
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哲吾 松尾
哲吾 松尾
心 山崎
心 山崎
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Matsuo Construction Co Ltd
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本発明は、木質系材料と金属系材料とを組み合わせて建造物を造る建築工法関する。 The present invention relates to construction methods build buildings by combining a wood-based material and metallic material.

建造物には、種々の材料(建築資材)が使用されている。近年では、建築資材の一つとして、直交集成板(CLT:Cross Laminated Timber)が注目されている(例えば、特許文献1参照)。   Various materials (building materials) are used in buildings. In recent years, Cross Laminated Timber (CLT) has attracted attention as one of building materials (see, for example, Patent Document 1).

直交集成板は、ひき板をその繊維方向が平行するように並べたものをその繊維方向が直交するように交互に積層接着した木質系材料であり、軽量かつ強度に優れたものである。よって、例えば、鉄筋コンクリート等に代えて直交集成板を使用することにより、建築資材の総重量を抑えた建造物を造ることができる。   The cross-laminated board is a wood-based material in which those in which lumbers are arranged so that their fiber directions are parallel are laminated and bonded alternately so that their fiber directions are orthogonal, and they are light in weight and excellent in strength. Therefore, for example, it is possible to create a structure with a reduced total weight of building materials by using orthogonal laminated plates instead of reinforced concrete or the like.

そして、例えば、直交集成板を床材として使用して建造物を軽量化すると共に、直交集成板を剛床仮定と同等にする(直交集成板の剛性および耐力を従来材である鉄筋コンクリート等の剛性および耐力と同等にする)ことにより、当該建造物の耐震性能および免震性能等を格段に向上させることができる。   Then, for example, the cross laminated board is used as a floor material to reduce the weight of the structure, and the cross laminated board is made equal to the rigid floor assumption (the rigidity and the load resistance of the cross laminated board are the conventional materials such as reinforced concrete) And earthquake resistance) can significantly improve the seismic performance, seismic isolation performance, etc. of the building concerned.

特開2017−87479号公報JP 2017-87479 A

直交集成板を剛床仮定と同等にするためには、直交集成板と他部材(例えば、鉄骨)との接合において十分な強度が必要となる。このような直交集成板(木質系材料)と鉄骨(金属系材料)との接合においては、鉄骨に多数のスタッドを溶着すると共に直交集成板に多数の貫通穴を形成し、多数の貫通穴に多数のスタッドを挿通した状態で当該貫通穴に樹脂を充填して硬化することにより、十分な接合強度を確保することができる。   In order for the cross-laminate to be equivalent to the rigid-floor assumption, sufficient strength is required in joining the cross-laminate and other members (eg, steel). In the joining of such an orthogonal laminated board (wood-based material) and a steel frame (metal-based material), a large number of studs are welded to a steel frame, and a large number of through holes are formed in the orthogonal laminated board. Sufficient bonding strength can be secured by filling the through holes with resin in a state in which a large number of studs are inserted and hardening the resin.

このように、木質系材料(直交集成板)と金属系材料(鉄骨)とを組み合わせて建造物を造る従来の建築工法を図に示す。従来の建築工法によれば、建築資材工場において、多数のスタッド104が溶着された鉄骨102と多数の貫通穴111が形成された直交集成板101とを製作し、建築現場において、これら鉄骨102と直交集成板101とを組み合わせて建造物を造る。 Thus, a conventional construction methods in combination woody material and (orthogonal assembled plate) metal-based material and (Steel) build buildings in FIG. According to the conventional construction method, in a building material factory, a steel frame 102 to which a large number of studs 104 are welded and an orthogonal laminated plate 101 having a large number of through holes 111 are manufactured. A building is made by combining the orthogonal laminated board 101.

ここで、多数のスタッド104が溶着された鉄骨102は、その輸送が困難である(輸送(積載)効率が悪い)だけでなく、建築現場において、作業者による種々の作業(例えば、当該鉄骨102上の移動、当該鉄骨102を扱う作業、当該鉄骨102周辺でのその他の作業)の妨げとなることがある。   Here, the steel frame 102 to which a large number of studs 104 are welded is not only difficult to transport (poor transport (loading) efficiency is bad), but also at construction sites, various operations by workers (for example, the steel frame 102) The movement above, the operation of handling the steel frame 102, and other operations around the steel frame 102 may be hindered.

特に、鉄骨102の上に直交集成板101を配置する作業においては、多数のスタッド104を多数の貫通穴111にそれぞれ挿入させて直交集成板101を鉄骨102上に載置することが困難である。また、スタッド104と貫通穴111とのピッチがずれている場合には、直交集成板101を鉄骨102上に載置することができない。   In particular, in the operation of arranging the cross assembly plate 101 on the steel frame 102, it is difficult to insert the many studs 104 into the many through holes 111 and place the cross assembly plate 101 on the steel frame 102. . Further, when the pitch between the studs 104 and the through holes 111 is shifted, the cross plate 101 can not be placed on the steel frame 102.

なお、作業者の作業性、および、建築資材工場における製作誤差(スタッド104と貫通穴111とのピッチのずれ)を考慮し、スタッド104を小径化する、または、貫通穴111を大径化することが考えられる。しかし、いずれの場合であっても、直交集成板101と鉄骨102との接合強度が低下してしまい、建造物に必要とされる接合強度を確保することができない虞がある。   In addition, the diameter of the stud 104 is reduced or the diameter of the through hole 111 is increased in consideration of the workability of the worker and the manufacturing error in the building material factory (shift of the pitch between the stud 104 and the through hole 111). It is conceivable. However, in any case, the bonding strength between the cross laminated plate 101 and the steel frame 102 may be reduced, and the bonding strength required for the building may not be secured.

本発明は上記問題に鑑みてなされたもので、木質系材料と金属系材料とを組み合わせた建造物を効率的に造ることを目的とする。   The present invention has been made in view of the above problems, and an object thereof is to efficiently build a structure in which a wood-based material and a metal-based material are combined.

上記課題を解決する第一の発明に係る建築工法は、木質系材料と金属系材料とを組み合わせて建造物を造る建築工法であって、前記木質系材料と前記金属系材料とを、前記木質系材料の接合面に臨んで形成された貫通穴の開口部と前記金属系材料の接合面とが対向するように、配置する第一の工程と、前記木質系材料の厚さよりも長い棒状部材を、前記貫通穴に挿入して前記金属系材料と溶着する第二の工程と、前記金属系材料に溶着された前記棒状部材を、前記木質系材料の厚さよりも短くする第三の工程と、前記貫通穴に、樹脂を充填して硬化する第四の工程とを備え、前記棒状部材が、前記金属系材料と溶着される一端から前記木質系材料の厚さよりも低い位置に、横断面の面積が局所的に小さい切り欠き部を有するものであり、前記第二の工程において、前記棒状部材の溶接端を囲むように環状に形成され、前記棒状部材と前記金属系材料との溶接を補助する磁器から成る第一の溶接補助部材と、前記棒状部材を覆うように管状に形成され、先端部に前記第一の溶接補助部材が取り付けられる金属から成る第二の溶接補助部材とを用いることを特徴とする。 The construction method according to the first aspect of the present invention for solving the above-mentioned problems is a construction method for building a structure by combining a wood-based material and a metal-based material, and the wood-based material and the metal-based material A first step of arranging so that the opening of the through hole formed facing the joint surface of the base material faces the joint surface of the metal base material, and a rod-like member longer than the thickness of the wood base material A second step of inserting the through-hole into the through hole and welding with the metal-based material, and a third step of shortening the rod-like member welded to the metal-based material than the thickness of the wood-based material And a fourth step of filling and curing the resin in the through hole , wherein the rod-like member is located at a position lower than the thickness of the wood-based material from one end where it is welded to the metal-based material The area of which has locally small notches, In the second step, a first welding auxiliary member made of porcelain is formed in an annular shape so as to surround the welding end of the rod-like member and which assists the welding between the rod-like member and the metal-based material; And a second welding auxiliary member made of metal, which is formed in a tubular shape and to which the first welding auxiliary member is attached at its tip .

上記課題を解決する第二の発明に係る建築工法は、第一の発明に係る建築工法において、前記第一の工程において、前記木質系材料と前記金属系材料との間に所定の隙間を設け、前記第二の工程において、前記棒状部材を、前記木質系材料の厚さと前記所定の隙間の厚さとの和よりも長く設定し、前記第四の工程において、前記所定の隙間を取り除いた後に前記樹脂の充填を行うことを特徴とする。 The construction method according to the second aspect of the present invention for solving the above-mentioned problems is the construction method according to the first aspect, wherein in the first step, a predetermined gap is provided between the wood-based material and the metal-based material In the second step, the rod-like member is set longer than the sum of the thickness of the wood-based material and the thickness of the predetermined gap, and after the predetermined gap is removed in the fourth step. It is characterized in that the resin is filled .

上記課題を解決する第の発明に係る建築工法は、第一または二の発明に係る建築工法において、前記木質系材料は、ひき板をその繊維方向が平行するように並べたものをその繊維方向が直交するように交互に積層接着した直交集成板の床材であり、前記金属系材料は、金属製の梁材であることを特徴とする。 The construction method according to the third aspect of the present invention for solving the above-mentioned problems is the construction method according to the first or second aspect , wherein the wood-based material is obtained by arranging lumbers with their fiber directions parallel. It is a floor material of cross-laminated boards laminated and bonded alternately so that fiber directions are orthogonal to each other, and the metal-based material is a metal beam material.

第一の発明に係る建築工法によれば、木質系材料と金属系材料とを配置した後に棒状部材を金属系材料に溶着することにより、木質系材料と金属系材料との配置作業および当該配置作業より以前の種々の作業を容易かつ効率的に行うことができるので、木質系材料と金属系材料とを組み合わせた建造物を効率的に造ることができる。
また、第一の発明に係る建築工法によれば、作業者の作業性が向上されると共に、建築資材工場における製作誤差によらずに木質系材料と金属系材料との接合作業を行うことができるので、棒状部材および貫通穴を接合に適した形状寸法で形成し、木質系材料と金属系材料とを組み合わせた建造物において十分な剛性と耐力とを確保することができる。
また、第一の発明に係る建築工法によれば、長尺の棒状部材を用いることによって金属系材料との溶着を容易かつ確実に行うことができると共に、当該棒状部材を短尺化することによって後工程における他部材との干渉等を回避することができる。
また、第一の発明に係る建築工法によれば、第二の溶接補助部材によって、第一の溶接補助部材を確実かつ正確に適切な位置に設置させることができると共に、適切な位置に設置された第一の溶接補助部材によって、棒状部材と金属系材料とを適切に溶着させ、十分な接合強度を得ることができる。
また、第一の発明に係る建築工法によれば、棒状部材を切り欠き部において容易に切断し、短くすることができる。
According to the construction method of the first aspect of the present invention, the work of arranging the wood-based material and the metal-based material and the arrangement by welding the rod-like member to the metal-based material after arranging the wood-based material and the metal-based material Since various operations prior to the operation can be easily and efficiently performed, it is possible to efficiently build a construction combining wood-based materials and metal-based materials.
Further, according to the construction method according to the first aspect of the invention, the workability of the worker is improved, and the joining operation of the wood-based material and the metal-based material can be performed regardless of the manufacturing error in the building material factory. Therefore, the rod-like member and the through hole can be formed to have a shape and size suitable for joining, and sufficient rigidity and proof stress can be secured in a structure in which the wood-based material and the metal-based material are combined.
Moreover, according to the construction method of the first aspect of the invention, welding with the metal-based material can be performed easily and reliably by using a long rod-like member, and the rod-like member can be shortened by shortening the rod-like member. Interference with other members in the process can be avoided.
Further, according to the construction method of the first aspect of the invention, the second welding auxiliary member enables the first welding auxiliary member to be reliably and accurately installed at an appropriate position, and to be installed at an appropriate position. The rod-shaped member and the metal-based material can be appropriately welded by the first welding auxiliary member, and sufficient bonding strength can be obtained.
Further, according to the construction method of the first aspect of the present invention, the rod-like member can be easily cut and shortened at the notch portion.

第二の発明に係る建築工法によれば、棒状部材と金属系材料との溶着の際に発生するスパッタ等が木質系材料に影響する(木質系材料の一部を焦がす)ことを回避することができる。また、棒状部材と金属系材料との接触具合および溶着状態の確認等を行うことができる。   According to the construction method according to the second aspect of the invention, it is to avoid that the spatter or the like generated at the time of welding of the rod-shaped member and the metal-based material affects the wood-based material (scoring a part of the wood-based material) Can. Moreover, the contact condition and welding condition of a rod-shaped member and metal-type material can be confirmed.

の発明に係る建築工法によれば、直交集成板(CLT)と鉄骨とを組み合わせた建造物に適用し、当該建造物を容易に造ることができる。 According to the construction method according to the third aspect of the present invention, it can be applied to a structure in which cross laminated board (CLT) and steel frame are combined, and the structure can be easily built.

実施例1に係る建築工法における第一の工程を示す説明図である。FIG. 6 is an explanatory view showing a first step in the construction method according to the first embodiment. 実施例1に係る建築工法における第一の工程を示す説明図である。FIG. 6 is an explanatory view showing a first step in the construction method according to the first embodiment. 実施例1に係る建築工法における第二の工程を示す説明図である。FIG. 7 is an explanatory view showing a second step in the construction method according to the first embodiment. 実施例1に係る建築工法における第二の工程を示す説明図である。FIG. 7 is an explanatory view showing a second step in the construction method according to the first embodiment. 実施例1に係る建築工法における第二の工程を示す説明図である。FIG. 7 is an explanatory view showing a second step in the construction method according to the first embodiment. 実施例1に係る建築工法における第三の工程を示す説明図である。FIG. 8 is an explanatory view showing a third step in the construction method according to the first embodiment. 実施例1に係る建築工法における第四の工程を示す説明図である。It is explanatory drawing which shows the 4th process in the construction method concerning Example 1. FIG. 実施例1に係る建築工法における第四の工程を示す説明図である。It is explanatory drawing which shows the 4th process in the construction method concerning Example 1. FIG. 従来の建築工法を示す説明図である。It is explanatory drawing which shows the conventional construction method.

以下に、本発明に係る建築工法の実施例について、添付図面を参照して詳細に説明する。もちろん、本発明は以下の実施例に限定されず、本発明の趣旨を逸脱しない範囲で各種変更が可能であることは言うまでもない。   Hereinafter, an embodiment of a construction method according to the present invention will be described in detail with reference to the attached drawings. Of course, the present invention is not limited to the following embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

本実施例に係る建築工法は、床材としての直交集成板(木質系材料)1を、梁材として所定の位置に設置された鉄骨(金属系材料)2に対して、容易に組み付ける(位置決めおよび固定する)ものである(図1参照)。   In the construction method according to the present embodiment, the cross-laminated board (wood-based material) 1 as a floor material is easily assembled to a steel frame (metal-based material) 2 installed at a predetermined position as a beam material (positioning And fixed) (see FIG. 1).

ここで、直交集成板1は、ひき板をその繊維方向が平行するように並べたものをその繊維方向が直交するように交互に積層接着した木質系材料であり、CLT(Cross Laminated Timber)と呼ばれるものである。また、鉄骨2は、横断面が略H字形状に形成された鉄材(H形鋼)、すなわち、金属系材料である。   Here, the cross-laminated board 1 is a wood-based material in which those in which lapping plates are arranged in parallel so that their fiber directions are parallel to one another are laminated and bonded alternately so that their fiber directions cross each other, CLT (Cross Laminated Timber) It is called. Further, the steel frame 2 is an iron material (H-shaped steel) having a substantially H-shaped cross section, that is, a metal-based material.

以下に、本実施例に係る建築工法の手順を、第一から第四の工程に分け、図1から図8を参照してそれぞれ説明する。   Hereinafter, the procedure of the construction method according to the present embodiment will be divided into first to fourth steps, which will be described with reference to FIGS. 1 to 8 respectively.

[第一の工程]
第一の工程は、梁材としての鉄骨2を所定の位置に設置し、その上に床材としての直交集成板1を配置する工程である(図1および図2参照)。
[First step]
The first step is a step of placing a steel frame 2 as a beam member at a predetermined position, and placing an orthogonal laminated plate 1 as a floor member thereon (see FIGS. 1 and 2).

第一の工程において、作業者は、鉄骨2の上にスペーサ3を設置し、このスペーサ3の上に直交集成板1を載置する(図2参照)。スペーサ3は、厚さT3から成る板状部材であり、その材質は特に限定されない。このように鉄骨2上においてスペーサ3を介して直交集成板1を配置することにより、鉄骨2と直交集成板1との間に所定の隙間空間Sを設けることができる。 In the first step, the operator places the spacer 3 on the steel frame 2 and places the cross laminated board 1 on the spacer 3 (see FIG. 2). The spacer 3 is a plate-like member having a thickness of T 3, the material is not particularly limited. By arranging the cross lamination plate 1 on the steel frame 2 via the spacer 3 as described above, a predetermined clearance space S can be provided between the steel frame 2 and the cross lamination plate 1.

もちろん、本発明に係る建築工法は、本実施例のようにスペーサ3を用いたものに限定されず、例えば、図示しない治具等を用いて、直交集成板1と鉄骨2との間に所定の隙間空間Sを確保した状態で、直交集成板1を鉄骨2に対して仮固定するようにしても良い。   Of course, the construction method according to the present invention is not limited to the one using the spacer 3 as in the present embodiment. For example, using a jig (not shown) or the like, a predetermined distance between the cross laminated plate 1 and the steel frame 2 may be used. The orthogonal laminated board 1 may be temporarily fixed to the steel frame 2 in a state where the clearance space S of the above is secured.

第一の工程において、直交集成板1には、当該直交集成板1を鉄骨2に組み付けるための貫通穴11が多数形成されており、鉄骨2には、後述する多数のスタッド4が溶着されていない。よって、作業者は、直交集成板1の下面(接合面)1aに臨んで形成された貫通穴11の一方の開口部11aと鉄骨2の上面(接合面)2aとが対向するように、直交集成板1を鉄骨2上に配置するだけで良く、種々の作業(例えば、鉄骨2上の移動、鉄骨2を扱う作業、鉄骨2周辺でのその他の作業など)を後述するスタッド4に妨げられることなく容易に行うことができる。   In the first step, a large number of through holes 11 for assembling the cross laminated plate 1 to the steel frame 2 are formed in the cross laminated board 1, and a large number of studs 4 described later are welded to the steel frame 2. Absent. Therefore, the worker is orthogonal to one another so that one opening 11a of the through hole 11 formed facing the lower surface (joint surface) 1a of the cross plate 1 and the upper surface (joint surface) 2a of the steel frame 2 face each other. It is only necessary to place the laminated board 1 on the steel frame 2 and it is interrupted by the stud 4 described later that various operations (for example, movement on the steel frame 2, work with the steel frame 2, other work around the steel frame 2, etc.) It can be done easily without.

[第二の工程]
第二の工程は、金属製の棒状部材であるスタッド4を直交集成板1の貫通穴11に挿入して鉄骨2と溶着する工程である(図3から図5参照)。
[Second step]
The second step is a step of inserting the stud 4 which is a rod member made of metal into the through hole 11 of the cross plate 1 and welding it to the steel frame 2 (see FIGS. 3 to 5).

第二の工程においては、鉄骨2とスタッド4との溶接を補助するフェルール(第一の溶接補助部材)5と、このフェルール5を保持(所望の位置に配置)するためのフェルール押さえ部材(第二の溶接補助部材)6とが用いられる。フェルール5は、耐熱性の磁器から成る環状部材であって、溶接時の保温および鋳型等として機能するものであり、フェルール押さえ部材6は、金属(例えば、銅)から成る管状部材であって、その先端部6aにフェルール5が固定(接着)されるようになっている。   In the second step, a ferrule (first welding auxiliary member) 5 for assisting the welding of the steel frame 2 and the stud 4 and a ferrule pressing member (secondary member for holding the ferrule 5 (arranged at a desired position) The second welding auxiliary member) 6 is used. The ferrule 5 is an annular member made of heat-resistant porcelain and functions as heat retention and a mold at the time of welding, and the ferrule holding member 6 is a tubular member made of metal (for example, copper). The ferrule 5 is fixed (adhered) to the tip 6a.

よって、第二の工程において、作業者は、スタッド4を図示しない溶接機に接続された溶接ガン(溶接器具)7のチャック7aに取り付けると共に、このスタッド4を覆うように環状のフェルール5および管状のフェルール押さえ部材6を配置し、これらスタッド4とフェルール5とフェルール押さえ部材6とを直交集成板1の上面(非接合面)1bに臨んで形成された貫通穴11の他方の開口部11bから当該貫通穴11内に挿入する(図3参照)。   Therefore, in the second step, the operator attaches the stud 4 to the chuck 7 a of the welding gun (welding tool) 7 connected to the welding machine (not shown), and also covers the stud 4 with the annular ferrule 5 and the tubular From the other opening 11b of the through hole 11 formed by arranging the stud 4 and the ferrule 5 and the ferrule holding member 6 on the upper surface (non-joining surface) 1b of the cross plate 1 It inserts in the said through-hole 11 (refer FIG. 3).

続いて、第二の工程において、作業者は、スタッド4の溶接端(先端部)4aを鉄骨2の上面2aに押し当てると共に、フェルール5を鉄骨2とスタッド4との接触部(スタッド4の溶接端4a)を囲むように配置し、鉄骨2とスタッド4とを溶着する(図4参照)。ここで、鉄骨2とスタッド4との溶着は、これら鉄骨2とスタッド4との間に所定の電流を流して発生するアークによってなされる。   Subsequently, in the second step, the operator presses the welding end (tip portion) 4 a of the stud 4 against the upper surface 2 a of the steel frame 2, and the contact portion between the steel frame 2 and the stud 4 (the stud 4). It arranges so that welding end 4a may be surrounded, and steel frame 2 and stud 4 are welded (refer to Drawing 4). Here, welding of the steel frame 2 and the stud 4 is performed by an arc generated by flowing a predetermined current between the steel frame 2 and the stud 4.

このとき、直交集成板1と鉄骨2との間にスペーサ3(隙間空間S)が設けられていることにより、鉄骨2とスタッド4との溶着の際に発生するアークが鉄骨2とフェルール5との隙間から漏れ出て直交集成板1に影響する(直交集成板1の一部を焦がす)ことが回避される。   At this time, by providing the spacer 3 (the gap space S) between the orthogonal laminated plate 1 and the steel frame 2, an arc generated in welding the steel frame 2 and the stud 4 is the steel frame 2 and the ferrule 5. Leaks out from the gap of (2) and affect the cross-laminate 1 (scoring a part of the cross-lamination 1) is avoided.

本実施例においては、スタッド4の全長L4を、スペーサ3(隙間空間S)の厚さT3を考慮し、直交集成板1の厚さT1とスペーサ3(隙間空間S)の厚さT3との和よりも長く設定している(L4>T1+T3)。一方、スペーサ3(隙間空間S)を設けない(設ける必要がない)場合には、スペーサ3(隙間空間S)の厚さT3を考慮する必要はなく(T3=0)、スタッド4の全長L4を、直交集成板1の厚さT1よりも長く設定するだけで良い(L4>T1)。 In the present embodiment, the overall length L 4 of the stud 4, the spacer 3 the thickness of the consideration of the thickness T 3 of (clearance space S), orthogonal assembly thickness T 1 of 1 and the spacer 3 (clearance space S) It is set longer than the sum with T 3 (L 4 > T 1 + T 3 ). On the other hand, is not provided spacers 3 (clearance space S) (there is no need to provide) a case, the spacer 3 is not necessary to consider the thickness T 3 of (clearance space S) (T 3 = 0), the stud 4 It is only necessary to set the total length L 4 to be longer than the thickness T 1 of the cross laminated plate 1 (L 4 > T 1 ).

このようにスタッド4の全長L4を設定することにより、スタッド4の溶接端4aが鉄骨2に押し当てられた(鉄骨2に溶着された)状態において、スタッド4の基端部4bが直交集成板1の上面1bよりも上方に突出することとなる。つまり、第二の工程において、スタッド4を溶接ガン7(チャック7a)によって保持しつつ直交集成板1を貫通(貫通穴11を挿通)して鉄骨2の上面2aに押し当てることができるので、例えば、貫通穴11の内径を溶接ガン7の外径よりも大きく設定する必要はない。 By thus setting the total length L 4 of the stud 4, the welding end 4a of the stud 4 is (are welded to steel 2) against being pushed into steel 2 in the state, the proximal end portion 4b of the stud 4 is orthogonal assembly It projects above the upper surface 1 b of the plate 1. That is, in the second step, the orthogonal laminated plate 1 can be penetrated (through the through hole 11) while being held by the welding gun 7 (chuck 7a) and pressed against the upper surface 2a of the steel frame 2 while holding the stud 4 For example, the inner diameter of the through hole 11 does not have to be set larger than the outer diameter of the welding gun 7.

なお、鉄骨2とスタッド4との溶接後には、作業者は、溶接ガン7のチャック7aからスタッド4を取り外し、溶接ガン7およびフェルール押さえ部材6を上方へ抜き出すと共に、フェルール5を除去する(図5参照)。   Note that after welding the steel frame 2 and the stud 4, the operator removes the stud 4 from the chuck 7 a of the welding gun 7, extracts the welding gun 7 and the ferrule pressing member 6 upward, and removes the ferrule 5 (see FIG. 5).

ここで、フェルール5は、鋳型として機能したことによって鉄骨2とスタッド4との溶接部に固着しているため、作業者は、フェルール5を壊し(叩き割り)、溶接部の周辺(貫通穴11および隙間空間S)にフェルール5の破片等が残らないように(後述する樹脂8を充填および硬化する際に不純物として混入しないように)、図示しない掃除機やブロア等を用いてきれいに除去する。なお、フェルール5の除去作業は、後述する第三の工程におけるスタッド4の切断後に行うようにしても良い。   Here, since the ferrule 5 is fixed to the welded portion between the steel frame 2 and the stud 4 by functioning as a mold, the operator breaks (breaks) the ferrule 5 and the periphery of the welded portion (through hole 11 And, in order to prevent fragments and the like of the ferrule 5 from remaining in the clearance space S) (not to mix as impurities when filling and curing the resin 8 described later), cleanly remove using a vacuum cleaner or a blower not shown. The removal operation of the ferrule 5 may be performed after the cutting of the stud 4 in the third step described later.

[第三の工程]
第三の工程は、スタッド4を切断して長尺状態から短尺状態とする工程である(図6参照)。
[Third step]
The third step is a step of cutting the stud 4 to bring it from the long state to the short state (see FIG. 6).

スタッド4は、前述したように長尺に形成され(L4>T1+T3)、その基端部4bが直交集成板1の上面1bよりも上方に突出しているので、作業者は、スタッド4が直交集成板1の上面1bよりも上方に突出しないように、すなわち、鉄骨2に溶着されて残される残置部分4−1の全長L4-1が直交集成板1の厚さT1よりも短くなるように(L4-1<T1)、スタッド4を切断する(スタッド4の一部(切除部分4−2)を切除する)。 As described above, the stud 4 is formed to be long (L 4 > T 1 + T 3 ), and since the base end 4 b protrudes upward from the upper surface 1 b of the cross-laminated board 1, the worker 4 such that the total length L 4-1 of the remaining part 4-1 left to be welded to the steel frame 2 is not greater than the thickness T 1 of the cross-laminated plate 1 so that as becomes shorter (L 4-1 <T 1), cutting the studs 4 (resecting a portion of the stud 4 (cutting portion 4-2)).

ここで、スタッド4には、その横断面の面積が局所的に小さくなる箇所(切り欠き部)21が予め設けられており、作業者は、スタッド4を切り欠き部21において容易に切断することができるようになっている。具体的には、例えば、作業者は、スタッド4の基端部4b(切断部分4−2)を図示しないペンチ等で掴んだ状態で捩じる、または、スタッド4の基端部4b(切断部分4−2)を図示しないハンマー等で叩くことにより、スタッド4を切断する。もちろん、切り欠き部21は、スタッド4において鉄骨2と溶着される一端(溶接端4a)からの長さ(残置部分4−1の全長L4-1)が直交集成板1の厚さT1よりも低い位置(L4-1<T1)に形成されている。 Here, the stud 4 is provided in advance with a portion (notched portion) 21 where the area of the cross section is locally reduced, and the worker can easily cut the stud 4 at the notched portion 21. It is possible to Specifically, for example, the worker twists in a state where the proximal end 4b (the cut portion 4-2) of the stud 4 is gripped with a pliers or the like (not shown) or the proximal end 4b of the stud 4 (cut The stud 4 is cut by tapping the part 4-2) with a hammer not shown. Of course, the cutout portion 21, the thickness T 1 of the orthogonal assembly plate 1 (total length L 4-1 of leaving portions 4-1) length from one end to be steel 2 welded in the stud 4 (welded end 4a) It is formed in a lower position (L 4-1 <T 1) than.

以上のようにして、スタッド4(残置部分4−1)を貫通穴11内に適切に設置(直交集成板1の上面1bから突出することなく貫通穴11に挿通した状態で鉄骨2に溶着)することができる。同様にして、上述した第二の工程および第三の工程を直交集成板1に形成された多数の貫通穴11に対して行うことにより、多数のスタッド4(残置部分4−1)が各貫通穴11内に適切に設置されることとなる。   As described above, the stud 4 (remaining portion 4-1) is properly installed in the through hole 11 (welded to the steel frame 2 in a state where it is inserted into the through hole 11 without protruding from the upper surface 1b of the cross plate 1) can do. Similarly, by performing the above-described second and third steps on a large number of through holes 11 formed in the cross-laminated board 1, a large number of studs 4 (remaining portions 4-1) It will be properly installed in the hole 11.

[第四の工程]
第四の工程は、直交集成板1と鉄骨2との間のスペーサ3を取り除き(図7参照)、樹脂8を貫通穴11に充填して硬化する工程である(図8参照)。
[The fourth step]
The fourth step is a step of removing the spacer 3 between the cross plate 1 and the steel frame 2 (see FIG. 7), filling the through hole 11 with the resin 8 and curing (see FIG. 8).

第四の工程において、作業者は、スタッド4(残置部分4−1)が貫通穴11から抜け出ない程度に、すなわち、直交集成板1の下面1aが鉄骨2の上面2aから所定の距離(残置部分4−1の全長L4-1)以上離れないように、直交集成板1を僅かに持ち上げてスペーサ3を取り除く。なお、スペーサ3の除去作業は、前述した第三の工程におけるスタッド4の切断前に行うようにしても良い。 In the fourth step, the worker is able to prevent the stud 4 (remaining portion 4-1) from coming out of the through hole 11, that is, the lower surface 1a of the cross plate 1 is a predetermined distance from the upper surface 2a of the steel frame 2 (remaining The cross laminated plate 1 is slightly lifted to remove the spacer 3 so as not to be separated by the total length L 4-1 of the part 4-1 or more. The removing operation of the spacer 3 may be performed before the cutting of the stud 4 in the third step described above.

続いて、第四の工程において、作業者は、貫通穴11の一方の開口部11aが鉄骨2によって塞がれるように、すなわち、直交集成板1の下面1aと鉄骨2の上面2aとが接触(密接)するように、直交集成板1を鉄骨2上に載置する。なお、前述したように、図示しない治具等を用いて、直交集成板1と鉄骨2との間に所定の隙間空間Sを確保した状態で、直交集成板1を鉄骨2に対して仮固定している場合には、当該仮固定を解除して直交集成板1を鉄骨2上に載置する。   Subsequently, in the fourth step, the worker causes one of the openings 11 a of the through hole 11 to be closed by the steel frame 2, that is, the lower surface 1 a of the cross plate 1 and the upper surface 2 a of the steel frame 2 contact The cross laminated board 1 is placed on the steel frame 2 so as to be (closely) fitted. In addition, as mentioned above, the cross laminated board 1 is temporarily fixed with respect to the steel frame 2 in the state which ensured predetermined | prescribed clearance space S between the cross laminated board 1 and the steel frame 2 using the jig etc. which are not shown in figure. If so, the temporary fixing is released and the cross laminated board 1 is placed on the steel frame 2.

続いて、第四の工程において、作業者は、スタッド4(残置部分4−1)が適切に設置されて鉄骨2によって一方の開口部11aが塞がれた貫通穴11に対し、空隙が生じることのないように樹脂8を充填し、当該樹脂8を硬化させる。   Subsequently, in the fourth step, the worker generates an air gap with respect to the through hole 11 in which the stud 4 (remaining portion 4-1) is properly installed and the one opening 11a is closed by the steel frame 2. The resin 8 is filled so as not to cause the resin 8 to cure.

以上により、床材としての直交集成板(木質系材料)1と、梁材としての鉄骨(金属系材料)2との組み付け(位置決めおよび固定)が完了する。   Thus, the assembly (positioning and fixing) of the cross-laminated board (wood-based material) 1 as the floor material and the steel frame (metal-based material) 2 as the beam material is completed.

本実施例に係る建築工法によれば、直交集成板1を鉄骨2の上に配置した後に、スタッド4を直交集成板1の貫通穴11に挿通して鉄骨2と溶着させるようにしたので、建築現場において、作業者による種々の作業(例えば、鉄骨2上の移動、鉄骨2を扱う作業、鉄骨2周辺でのその他の作業)がスタッド4によって妨げられることはなく、また、鉄骨2の積載効率を向上させて当該鉄骨2の輸送を容易かつ効率的に行うことができる。よって、直交集成板1(木質系材料)と鉄骨2(金属系材料)とを組み合わせた建造物を効率的に造ることができる。   According to the construction method of the present embodiment, the stud 4 is inserted into the through hole 11 of the cross-laminated plate 1 and welded to the steel frame 2 after the cross-laminated board 1 is disposed on the steel frame 2. In the construction site, various operations by workers (for example, movement on the steel frame 2, work on handling the steel frame 2, other work around the steel frame 2) are not impeded by the stud 4 and loading of the steel frame 2 is also possible. The efficiency can be improved to transport the steel frame 2 easily and efficiently. Thus, a structure in which the cross-laminated board 1 (wood-based material) and the steel frame 2 (metal-based material) are combined can be efficiently produced.

また、本実施例に係る建築工法によれば、作業者の作業性が向上されると共に、建築資材工場における製作誤差によらずに直交集成板1と鉄骨2との接合作業を行うことができるので、スタッド4(残置部分4−1)を小径化する、または、貫通穴11を大径化する必要がない。よって、スタッド4および貫通穴11を適切な形状寸法で形成し、樹脂8を貫通穴11に適量だけ充填することができるので、直交集成板1と鉄骨2とを組み合わせた建造物において水平荷重に対する十分な剛性と耐力とを確保することができる。つまり、直交集成板1を剛床仮定と同等とする(直交集成板1の剛性および耐力を従来材である鉄筋コンクリート等の剛性および耐力と同等にする)ことができる。   Moreover, according to the construction method according to the present embodiment, the workability of the worker is improved, and the joining operation of the orthogonal laminated plate 1 and the steel frame 2 can be performed regardless of the manufacturing error in the building material factory. Therefore, it is not necessary to reduce the diameter of the stud 4 (remaining portion 4-1) or to increase the diameter of the through hole 11. Thus, the stud 4 and the through hole 11 can be formed to have appropriate shapes and sizes, and the resin 8 can be filled in the through hole 11 in an appropriate amount. Sufficient rigidity and proof strength can be secured. That is, the cross-laminated board 1 can be made equal to the rigid floor assumption (the rigidity and the yield strength of the cross-laminated board 1 can be made equal to the rigidity and the yield strength of a conventional material such as reinforced concrete).

また、本実施例に係る建築工法によれば、スタッド4を長尺状態(L4>T1+T3)で後打ち(直交集成板1を鉄骨2上に配置した後にスタッド4を鉄骨2に溶着)し、その後、当該スタッド4を切断して短尺状態(L4-1<T1)とすることにより、鉄骨2とスタッド4との溶接を容易かつ確実に行うことができると共に、後工程(床施工等)におけるスタッド4と他部材との干渉等を回避することができる。 In addition, according to the construction method according to the present embodiment, the stud 4 is placed on the steel frame 2 after the stud 4 is post-welded in the long state (L 4 > T 1 + T 3 ). Welding) and then cutting the stud 4 into a short state (L 4-1 <T 1 ) enables welding of the steel frame 2 and the stud 4 to be performed easily and reliably, and in the post-process Interference and the like between the stud 4 and other members in (floor construction and the like) can be avoided.

また、本実施例に係る建築工法によれば、スタッド4に局所的に横断面の面積が小さくなる切り欠き部21を設けたことにより、当該スタッド4が鉄骨2に溶着されて貫通穴11内に挿通された状態において、作業者は、図示しないペンチやハンマー等を用いて容易に切断することができる。   Further, according to the construction method according to the present embodiment, the stud 4 is welded to the steel frame 2 by providing the notch portion 21 in which the area of the cross section is reduced locally in the stud 4 and the inside of the through hole 11 In the inserted state, the operator can easily cut using a pliers or a hammer not shown.

また、本実施例に係る建築工法によれば、直交集成板1と鉄骨2との間にスペーサ3(隙間空間S)を設けて作業することにより、鉄骨2とスタッド4との溶着の際に発生するアーク(スパッタ等)が鉄骨2とフェルール5との隙間から漏れ出て直交集成板1に影響する(直交集成板1の一部を焦がす)ことを回避することができると共に、スタッド4と鉄骨2との接触具合の確認、フェルール5の設置具合の確認、スタッド4と鉄骨2との溶接状態の確認、フェルール5の除去作業および除去状態の確認等を容易に行うことができる。   Further, according to the construction method according to the present embodiment, the spacer 3 (the gap space S) is provided between the cross laminated plate 1 and the steel frame 2 to work, thereby welding the steel frame 2 and the stud 4 together. It is possible to avoid that the generated arc (sputter etc.) leaks from the gap between the steel frame 2 and the ferrule 5 to affect the cross-laminated plate 1 (scoring a part of the cross-laminated plate 1). It is possible to easily confirm the contact condition with the steel frame 2, the installation condition of the ferrule 5, the welding condition of the stud 4 and the steel frame 2, the removing operation of the ferrule 5 and the checking condition of the removal.

また、本実施例に係る建築工法によれば、フェルール押さえ部材6を用いることにより、フェルール5を確実にスタッド4と鉄骨2との接触部に位置させ、スタッド4の溶接端4aを囲むように設置することができる。なお、このフェルール押さえ部材6を導電性の材料(例えば、銅等)で製作することにより、スタッド4に設けた切り欠き部21に影響されることなく、所定の電流をスタッド4と鉄骨2との間に確実に流し、スタッド4と鉄骨2とを溶着することができる。   Further, according to the construction method according to the present embodiment, by using the ferrule pressing member 6, the ferrule 5 is surely positioned at the contact portion between the stud 4 and the steel frame 2 so as to surround the welding end 4a of the stud 4. It can be installed. When the ferrule holding member 6 is made of a conductive material (for example, copper), a predetermined current can be applied to the stud 4 and the steel frame 2 without being affected by the notch 21 provided in the stud 4. And the stud 4 and the steel frame 2 can be welded together.

1 直交集成板(木質系材料)
1a 直交集成板の下面(接合面)
1b 直交集成板の上面(非接合面)
2 鉄骨(金属系材料)
2a 鉄骨の上面(接合面)
3 スペーサ
4 スタッド
4a スタッドの溶接端(先端部)
4b スタッドの基端部
4−1 スタッドの残置部分
4−2 スタッドの切除部分
5 フェルール(第一の溶接補助部材)
6 フェルール押さえ部材(第二の溶接補助部材)
6a フェルール押さえ部材の先端部
7 溶接ガン(溶接器具)
7a 溶接ガンのチャック
8 樹脂
11 直交集成板の貫通穴
11a 貫通穴の一方の開口部
11b 貫通穴の他方の開口部
S 隙間空間
4 スタッドの全長
4-1 スタッドの残置部分の全長
1 直交集成板の厚さ
3 スペーサ(隙間空間)の厚さ
1 Crossed laminated board (wood-based material)
1a Lower surface (joint surface) of cross-laminated board
1b Top face of non-crossing board (non-joining surface)
2 Steel frame (metal material)
2a Upper surface of steel frame (joint surface)
3 Spacer 4 Stud 4a Welded end of stud (tip)
4b Stud base end portion 4-1 Stud remaining portion 4-2 Stud cut portion 5 Ferrule (first welding auxiliary member)
6 Ferrule Holding Member (Second Welding Auxiliary Member)
6a Ferrule holding member tip 7 Welding gun (welding tool)
7a Chuck of welding gun 8 Resin 11 Through hole 11a of cross-sectional assembly plate One opening 11b of through hole Other opening of through hole S Clearance space L 4 Stud total length L 4-1 Stud remaining length total length T 1 Thickness of orthogonal laminated plate thickness of T 3 spacer (gap space)

Claims (3)

木質系材料と金属系材料とを組み合わせて建造物を造る建築工法であって、
前記木質系材料と前記金属系材料とを、前記木質系材料の接合面に臨んで形成された貫通穴の開口部と前記金属系材料の接合面とが対向するように、配置する第一の工程と、
前記木質系材料の厚さよりも長い棒状部材を、前記貫通穴に挿入して前記金属系材料と溶着する第二の工程と、
前記金属系材料に溶着された前記棒状部材を、前記木質系材料の厚さよりも短くする第三の工程と、
前記貫通穴に、樹脂を充填して硬化する第四の工程と
を備え
前記棒状部材が、前記金属系材料と溶着される一端から前記木質系材料の厚さよりも低い位置に、横断面の面積が局所的に小さい切り欠き部を有するものであり、
前記第二の工程において、
前記棒状部材の溶接端を囲むように環状に形成され、前記棒状部材と前記金属系材料との溶接を補助する磁器から成る第一の溶接補助部材と、
前記棒状部材を覆うように管状に形成され、先端部に前記第一の溶接補助部材が取り付けられる金属から成る第二の溶接補助部材と
を用いることを特徴とする建築工法。
It is a construction method of building a structure by combining wood-based materials and metal-based materials,
A first method of arranging the wood-based material and the metal-based material such that the opening of the through hole formed facing the joint surface of the wood-based material and the joint surface of the metal-based material face each other. Process,
A second step of inserting a rod-like member longer than the thickness of the wood-based material into the through hole and welding it with the metal-based material;
A third step of making the rod-like member welded to the metal-based material shorter than the thickness of the wood-based material;
In the through hole, and a fourth step of curing the filled resin,
The rod-like member has a notch having a locally small cross-sectional area at a position lower than the thickness of the wood-based material from one end welded to the metal-based material,
In the second step,
A first welding auxiliary member made of porcelain which is annularly formed so as to surround a welding end of the rod-like member and which assists welding of the rod-like member and the metal-based material;
A second welding assisting member made of metal, formed in a tubular shape so as to cover the rod-like member, and to which the first welding assistance member is attached at its tip end;
A construction method characterized by using
前記第一の工程において、前記木質系材料と前記金属系材料との間に所定の隙間を設け、
前記第二の工程において、前記棒状部材を、前記木質系材料の厚さと前記所定の隙間の厚さとの和よりも長く設定し、
前記第四の工程において、前記所定の隙間を取り除いた後に前記樹脂の充填を行う
ことを特徴とする請求項1に記載の建築工法。
In the first step, a predetermined gap is provided between the wood-based material and the metal-based material,
In the second step, the rod-like member is set to be longer than the sum of the thickness of the wood-based material and the thickness of the predetermined gap,
The construction method according to claim 1, wherein the resin is filled after removing the predetermined gap in the fourth step.
前記木質系材料は、ひき板をその繊維方向が平行するように並べたものをその繊維方向が直交するように交互に積層接着した直交集成板の床材であり、
前記金属系材料は、金属製の梁材である
ことを特徴とする請求項1または請求項に記載の建築工法。
The wood-based material is a floor material of cross-laminated boards in which those in which lumbers are arranged so that their fiber directions are parallel are alternately laminated and bonded so that their fiber directions are orthogonal,
The construction method according to claim 1 or 2 , wherein the metal-based material is a metal beam material.
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JP2020084728A (en) * 2018-11-30 2020-06-04 松尾建設株式会社 Construction method and rod-like member used for the construction method

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JPH11336236A (en) * 1998-05-28 1999-12-07 Daiwa House Ind Co Ltd Floor structure in steel framed building
US20040074183A1 (en) * 2001-08-30 2004-04-22 Schneider Walter G. M. Wood deck connection system and method of installation
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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