JP2010084352A - Building foundation structure - Google Patents

Building foundation structure Download PDF

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JP2010084352A
JP2010084352A JP2008252321A JP2008252321A JP2010084352A JP 2010084352 A JP2010084352 A JP 2010084352A JP 2008252321 A JP2008252321 A JP 2008252321A JP 2008252321 A JP2008252321 A JP 2008252321A JP 2010084352 A JP2010084352 A JP 2010084352A
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foundation
anchor bolt
wooden
insertion hole
bolt insertion
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Yuji Nishio
雄二 西尾
Kazuo Nishio
一雄 西尾
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RENAISSANCE KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a building foundation structure used for fixing foundation concrete and a wooden sill to each other by an anchor bolt which has a means of preventing the wobbling of the wooden sill caused by the thinning of the sill, preventing the entry of moisture, water, decay fungi, termites or the like into the bolt insertion hole of the wooden sill, and has a means of drastically increasing durability. <P>SOLUTION: The diameter of the bolt insertion hole 3a of the wooden sill 3 is made larger than that of the anchor bolt imbedded in the foundation concrete 1, and a caulking agent 7 is filled into the clearance t between the bolt insertion hole 3a and the anchor bolt 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、木造建物の基礎構造，詳しくは基礎コンクリートと木製土台とのアンカーボルトによる固定構造に関する。   The present invention relates to a basic structure of a wooden building, and more particularly to a fixing structure using anchor bolts between basic concrete and a wooden base.

一般的に、木造建物の基礎部においては、基礎コンクリートにアンカーボルトを所定間隔で垂直に植設する一方、角材の如き木製土台にボルト挿通孔を穿設し、このボルト挿通孔にアンカーボルトが貫通する形で木製土台を基礎コンクリート上に基礎パッキンを介して配置し、該アンカーボルトの上方突出した頂部にナットを螺合して締め付けることにより、該木製土台を基礎コンクリートに固定している（特許文献１，２）。   Generally, in the foundation of a wooden building, anchor bolts are planted vertically at a predetermined interval in the foundation concrete, while bolt insertion holes are drilled in a wooden base such as square wood, and anchor bolts are installed in the bolt insertion holes. The wooden base is fixed to the basic concrete by placing the wooden base on the basic concrete in a penetrating manner through a base packing, and screwing and tightening a nut to the top of the anchor bolt protruding above ( Patent Documents 1 and 2).

そして、このような基礎構造では、基礎コンクリート側のアンカーボルトの位置を厳密に設定することが困難であるため、該アンカーボルトの径（例えば１２ｍｍ）に対して木製土台のボルト挿通孔を径大（例えば１８ｍｍ）に設定し、この径差によってアンカーボルトの位置ずれを吸収するようにしている。   In such a foundation structure, it is difficult to precisely set the position of the anchor bolt on the foundation concrete side. Therefore, the bolt insertion hole of the wooden base is larger in diameter than the anchor bolt diameter (for example, 12 mm). (For example, 18 mm) is set, and the displacement of the anchor bolt is absorbed by this difference in diameter.

しかるに、概して木製土台は経時的に木痩せを生じるため、従来の基礎構造にあっては、ナットによる締め付け力が低下してがたつき易くなると共に、ボルト挿通孔とアンカーボルトとの隙間が外部に通じ、この隙間に空気中の湿気や結露水等が侵入してアンカーボルトの錆化を速めたり、腐朽菌や白蟻等の侵入によって木質が中心部から蝕まれるといった問題があった。
特開２０００−１４４９３９ 特開２００４−２５０９６６ However, since the wooden base generally causes thinning over time, the tightening force by the nut is reduced and the clearance between the bolt insertion hole and the anchor bolt becomes external in the conventional foundation structure. As a result, moisture in the air, dew condensation water, etc. invaded into the gaps to accelerate the rusting of the anchor bolts, and the wood was eroded from the center due to the invasion of decaying fungi and white ants.
JP2000-144939 JP 2004-250966 A

この発明は、上述の事情に鑑みて、基礎コンクリートと木製土台とをアンカーボルトを介して固定する建物基礎構造において、木痩せによる木製土台のがたつきを防止すると共に、木製土台のボルト挿通孔への湿気、水、腐朽菌、白蟻等の侵入を阻止し、もってアンカーボルトの錆化ならびに木製土台の中心部からの蝕みを防止し、該基礎構造の耐久性を飛躍的に高めることを目的としている。   In view of the above-described circumstances, the present invention is a building foundation structure in which foundation concrete and a wooden base are fixed via anchor bolts. The purpose is to prevent moisture, water, decaying fungi, white ants, etc. from entering, and to prevent rusting of anchor bolts and erosion from the center of the wooden base, thereby dramatically improving the durability of the foundation structure. It is said.

上記目的を達成するために、この発明は以下の手段を提供する。   In order to achieve the above object, the present invention provides the following means.

〔１〕基礎コンクリート上に配置する木製土台のボルト挿通孔に、該基礎コンクリートに植設されたアンカーボルトを貫通し、このアンカーボルトの上方突出した頂部にナットを螺合緊締して前記木製土台を基礎コンクリートに固定する建物基礎構造において、前記木製土台のボルト挿通孔が前記アンカーボルトよりも径大に構成され、該ボルト挿通孔とアンカーボルトとの隙間にコーキング剤が充填されてなることを特徴とする建物基礎構造。   [1] An anchor bolt planted in the foundation concrete is passed through a bolt insertion hole of a wooden foundation arranged on the foundation concrete, and a nut is screwed and tightened to a top portion protruding upward of the anchor bolt. In the building foundation structure for fixing the base concrete to the foundation concrete, the bolt insertion hole of the wooden base is configured to be larger in diameter than the anchor bolt, and a caulking agent is filled in a gap between the bolt insertion hole and the anchor bolt. Characteristic building foundation structure.

〔２〕前記コーキング剤が接着機能を持つ硬化性液状樹脂材料からなる前項１に記載の建物基礎構造。   [2] The building foundation structure according to item 1, wherein the caulking agent is made of a curable liquid resin material having an adhesive function.

〔３〕基礎コンクリートと木製土台との間に基礎スペーサーが介在すると共に、該基礎スペーサーのボルト挿通部の内側に、前記アンカーボルトに外嵌するリング状パッキンが配置されてなる前項１又は２に記載の建物基礎構造。   [3] In the preceding item 1 or 2, wherein a foundation spacer is interposed between the foundation concrete and the wooden base, and a ring-shaped packing that is fitted on the anchor bolt is disposed inside the bolt insertion portion of the foundation spacer. The building foundation structure described.

〔４〕前記基礎コンクリートが床下空間を形成しない平地式基礎であり、前記基礎スペーサーが該基礎コンクリートと木製土台との間を土台全長にわたって封止するパッキンをなす前項３に記載の建物基礎構造。   [4] The building foundation structure according to item 3 above, wherein the foundation concrete is a flat ground foundation that does not form an underfloor space, and the foundation spacer forms a packing that seals between the foundation concrete and the wooden foundation over the entire length of the foundation.

〔５〕前記アンカーボルトの頂部から前記ナットの外周部にわたり、グリス入りキャップが冠着されてなる前項１〜４のいずれか１項に記載の建物基礎構造。   [5] The building foundation structure according to any one of the preceding items 1 to 4, wherein a cap with grease is attached from the top of the anchor bolt to the outer periphery of the nut.

〔１〕の発明に係る建物基礎構造では、木製土台のボルト挿通孔がアンカーボルトよりも径大に構成されることで、その径差によって施工時にアンカーボルトの位置ずれを吸収できるが、施工後の該ボルト挿通孔とアンカーボルトとの隙間にはコーキング剤が充填しているため、径大のボルト挿通孔による断面欠損がコーキング剤で補完され、それだけ木製土台の強度が向上する上、該木製土台に木痩せを生じてもがたつかず、また空気中の湿気や結露水がボルト挿通孔から木製土台の中心部に入り込むことがなく、もってアンカーボルトの錆化が防止されると共に、木製土台の中心部への腐朽菌や白蟻等の侵入も阻止され、建物基礎部の耐久性が大きく向上する。   In the building foundation structure according to the invention of [1], the bolt insertion hole of the wooden base is configured to be larger in diameter than the anchor bolt, so that the displacement of the anchor bolt can be absorbed during construction due to the difference in diameter. Since the caulking agent is filled in the gap between the bolt insertion hole and the anchor bolt, the cross-sectional defect due to the large-diameter bolt insertion hole is supplemented with the caulking agent, and the strength of the wooden base is improved accordingly. Even if the base is thinned, it will not rattle, and moisture and dew condensation in the air will not enter the center of the wooden base from the bolt insertion hole, preventing rusting of the anchor bolt, and the wooden base Invasion of decaying fungi and white ants into the center of the building is also prevented, and the durability of the building foundation is greatly improved.

〔２〕の発明によれば、前記コーキング剤が接着機能を持つ硬化性液状樹脂材料からなるため、木製土台とアンカーボルトとが強固に接合する上、樹脂液が木質にまで浸透して固化するから、木製土台の強度がより増大し、アンカーボルトの錆化防止作用もより強くなると共に、木製土台への腐朽菌や白蟻等の侵入防止作用がより大きくなる。   According to the invention of [2], since the caulking agent is made of a curable liquid resin material having an adhesive function, the wooden base and the anchor bolt are firmly bonded, and the resin liquid penetrates into the wood and solidifies. As a result, the strength of the wooden base is further increased, the anti-rusting action of the anchor bolt is further enhanced, and the anti-invasion action of decaying fungi and white ants to the wooden base is further increased.

〔３〕の発明によれば、基礎コンクリートと木製土台との間に介在する基礎スペーサーのボルト挿通部の内側にリング状パッキンが配置するから、ボルト挿通孔とアンカーボルトとの隙間に充填されたコーキング剤が該隙間の底部側から漏出するのを阻止できると共に、基礎コンクリートから突出したアンカーボルトが根元まで空気遮断され、その根元の錆化も防止される。   According to the invention of [3], since the ring-shaped packing is arranged inside the bolt insertion portion of the foundation spacer interposed between the foundation concrete and the wooden base, the gap between the bolt insertion hole and the anchor bolt is filled. The caulking agent can be prevented from leaking from the bottom side of the gap, and the anchor bolt protruding from the foundation concrete is blocked by air to the root, and the rusting of the root is also prevented.

〔４〕の発明によれば、基礎コンクリートが床下空間を形成しない平地式基礎であるため、概して木製土台の位置が低くなるが、前記基礎スペーサーがパッキンとして該基礎コンクリートと木製土台との間を土台全長にわたって封止するから、土台下の隙間から湿気が屋内へ侵入するのを防止できる。   According to the invention of [4], since the foundation concrete is a flat ground foundation that does not form an underfloor space, the position of the wooden base is generally lowered, but the foundation spacer serves as a packing between the foundation concrete and the wooden foundation. Since sealing is performed over the entire length of the base, it is possible to prevent moisture from entering the indoor through a gap under the base.

〔５〕の発明によれば、アンカーボルトの頂部から前記ナットの外周部にわたる部分が、グリス入りキャップによって長期にわたって錆止めされるから、建物基礎部の耐久性がより向上する。   According to the invention of [5], since the portion extending from the top of the anchor bolt to the outer periphery of the nut is rusted for a long time by the cap containing grease, the durability of the building foundation is further improved.

以下、この発明に係る建物基礎構造の実施形態について、図面を参照して具体的に説明する。図１は建物基礎構造の縦断側面図、図２及び図３は該基礎構造の構築操作を順次示す縦断側面図である。   Embodiments of a building foundation structure according to the present invention will be specifically described below with reference to the drawings. FIG. 1 is a longitudinal side view of a building foundation structure, and FIGS. 2 and 3 are longitudinal side views sequentially showing construction operations of the foundation structure.

図１において、１は床下空間を形成しない平地式基礎の基礎コンクリートであり、その周辺部に沿って所定間隔置きにアンカーボルト２が垂直に植設されている。そして、この基礎コンクリート１上に、角材からなる木製土台３が基礎スペーサー４を介して水平配置されると共に、該木製土台３に穿設されたボルト挿通孔３ａにアンカーボルト２が上下方向に貫通し、該アンカーボルト２の上方突出した頂部２ａに螺合緊締されたナット５がワッシャー６を介して木製土台３の上面に押接している。   In FIG. 1, reference numeral 1 denotes a flat foundation foundation concrete that does not form an underfloor space, and anchor bolts 2 are vertically planted at predetermined intervals along the periphery thereof. Then, a wooden base 3 made of square wood is horizontally arranged on the foundation concrete 1 via a foundation spacer 4, and anchor bolts 2 penetrate vertically through bolt insertion holes 3a drilled in the wooden base 3. A nut 5 screwed and fastened to a top portion 2 a protruding upward from the anchor bolt 2 is pressed against the upper surface of the wooden base 3 via a washer 6.

しかして、アンカーボルト２の径φ１（例えば１２ｍｍ）に対し、木製土台３のボルト挿通孔３ａの径φ２が大きく（例えば１８ｍｍに）設定されており、両者間の隙間ｔにコーキング剤７が充填されている。また、木製土台３から突出したアンカーボルト２の頂部２ａからナット５の外周部にわたり、グリス８入りのプラスチック製キャップ９が冠着されている。   Therefore, the diameter φ2 of the bolt insertion hole 3a of the wooden base 3 is set to be larger (for example, 18 mm) than the diameter φ1 (for example, 12 mm) of the anchor bolt 2, and the caulking agent 7 is filled in the gap t between them. Has been. A plastic cap 9 containing grease 8 is attached from the top 2 a of the anchor bolt 2 protruding from the wooden base 3 to the outer periphery of the nut 5.

また、基礎スペーサー４は、半硬質ゴム等の弾性材料からなる帯板状で、パッキンとして木製土台３の全長にわたって当該木製土台３と基礎コンクリート１との間を封止している。そして、この基礎スペーサー４の要所には上下に透通する径大穴をなすボルト挿通部４ａが形成され、該ボルト挿通部４ａの内側に軟質ゴム等のエラストマーからなるリング状パッキン１０がアンカーボルト２に外嵌して配置している。なお、該リング状パッキン１０は木製土台３のボルト挿通孔３ａと略等しい内径に設定され、この内周とアンカーボルト２との隙間までコーキング剤７が充填されている。   The foundation spacer 4 is in the form of a strip made of an elastic material such as semi-rigid rubber, and seals between the wooden base 3 and the basic concrete 1 over the entire length of the wooden base 3 as a packing. And the bolt insertion part 4a which makes the large diameter hole penetrated up and down is formed in the important point of this basic spacer 4, The ring-shaped packing 10 which consists of elastomers, such as a soft rubber, is inside this bolt insertion part 4a. 2 is fitted on the outside. The ring-shaped packing 10 is set to have an inner diameter substantially equal to the bolt insertion hole 3 a of the wooden base 3, and the caulking agent 7 is filled up to the gap between the inner periphery and the anchor bolt 2.

上記の建物基礎構造を構築するには、まず図２に示すように、アンカーボルト１を植設した基礎コンクリート１の周辺部上に、基礎スペーサー４をそのボルト挿通部４ａにアンカーボルト１が挿通するように載置すると共に、該アンカーボルト１にリング状パッキン１０を嵌装して基礎スペーサー４のボルト挿通部４ａの内側に嵌め込み、その上に木製土台３をアンカーボルト２がボルト挿通孔３ａに貫通する形で載置する。このとき、既述のようにアンカーボルト２の径φ１（例えば１２ｍｍ）に対し、木製土台３のボルト挿通孔３ａの径φ２が大きい（例えば１８ｍｍ）ことにより、アンカーボルト２の位置精度が多少悪くともボルト挿通孔３ａに入り込ませることができる。   In order to construct the building foundation structure described above, first, as shown in FIG. 2, the anchor bolt 1 is inserted into the bolt insertion portion 4a of the foundation spacer 4 on the peripheral portion of the foundation concrete 1 in which the anchor bolt 1 is planted. In addition, the ring-shaped packing 10 is fitted to the anchor bolt 1 and is fitted inside the bolt insertion portion 4a of the basic spacer 4, and the anchor bolt 2 is inserted into the bolt insertion hole 3a on the wooden base 3 thereon. It is placed so as to penetrate through. At this time, since the diameter φ2 of the bolt insertion hole 3a of the wooden base 3 is larger (for example, 18 mm) than the diameter φ1 (for example, 12 mm) of the anchor bolt 2, the positional accuracy of the anchor bolt 2 is slightly worse. Both can be inserted into the bolt insertion hole 3a.

次に図３に示すように、木製土台３のボルト挿通孔３ａとこれに挿嵌したアンカーボルト２との隙間ｔの全体に、適当な注入具１１によってコーキング剤７を注入充填した上で、木製土台３から上方突出したアンカーボルト２の頂部２ａにワッシャー６を介してナット５を螺合緊締し、その上に更にグリス８入りのキャップ９を冠着する。   Next, as shown in FIG. 3, the caulking agent 7 is injected and filled into the entire gap t between the bolt insertion hole 3 a of the wooden base 3 and the anchor bolt 2 inserted into the hole, A nut 5 is screwed and fastened to the top 2a of the anchor bolt 2 projecting upward from the wooden base 3 via a washer 6, and a cap 9 containing grease 8 is further crowned thereon.

このような建物基礎構造では、木製土台３のボルト挿通孔３ａとアンカーボルト２との隙間ｔにコーキング剤７が充填しているため、径大のボルト挿通孔３ａによる木製土台３の断面欠損分が該コーキング剤７で補完され、それだけ木製土台３の強度が向上することに加え、経時的に該木製土台３の木痩せを生じても、木製土台３とアンカーボルト２とがコーキング剤７を介して一体化しているので、木製土台３はがたつきを生じない。しかも、ボルト挿通孔３ａの前記隙間ｔがコーキング剤７で埋まっているから、空気中の湿気や結露水がボルト挿通孔３ａから木製土台３の中心部に入り込むことがなく、もってアンカーボルト２の錆化が防止されると共に、木製土台３の中心部への腐朽菌や白蟻等の侵入も阻止され、これらによって建物基礎部の耐久性が大きく向上することになる。   In such a building foundation structure, since the caulking agent 7 is filled in the gap t between the bolt insertion hole 3a of the wooden base 3 and the anchor bolt 2, the cross-sectional defect of the wooden base 3 due to the large diameter bolt insertion hole 3a. Is supplemented by the caulking agent 7, and the strength of the wooden base 3 is improved accordingly. Even if the wooden base 3 becomes thin over time, the wooden base 3 and the anchor bolts 2 can reduce the caulking agent 7. The wooden base 3 does not rattle. In addition, since the gap t of the bolt insertion hole 3a is filled with the caulking agent 7, moisture and dew condensation in the air do not enter the center of the wooden base 3 from the bolt insertion hole 3a. In addition to preventing rusting, invasion of decaying fungi and white ants into the center of the wooden base 3 is also prevented, thereby greatly improving the durability of the building foundation.

ここで、コーキング剤７としては、樹脂成分を含む硬化性材料であれば特に制約はなく、固形粒子を高率で含むペースト状ないしクリーム状の所謂パテ材やシール材等も使用できるが、特に接着機能を持つ硬化性液状樹脂材料からなるものが好適である。すなわち、接着機能を持つ硬化性液状樹脂材料からなるコーキング剤では、その接着性によって木製土台３とアンカーボルト２とが強固に接合し、且つ樹脂液が木質にまで浸透して固化するから、木製土台３の強度がより増大し、アンカーボルト２の錆化防止作用もより強くなると共に、木製土台３への腐朽菌や白蟻等の侵入防止作用も増大し、またペースト状ないしクリーム状のものに比較して隙間ｔへの注入も容易である。   Here, the caulking agent 7 is not particularly limited as long as it is a curable material containing a resin component, and a paste-like or cream-like so-called putty material or sealing material containing solid particles at a high rate can be used. What consists of a curable liquid resin material with an adhesive function is suitable. That is, in the caulking agent made of a curable liquid resin material having an adhesive function, the wooden base 3 and the anchor bolt 2 are firmly bonded by the adhesive property, and the resin liquid penetrates into the wood and solidifies. The strength of the base 3 is further increased, the anti-rusting action of the anchor bolt 2 is also strengthened, and the anti-invasion action of decaying fungi and white ants to the wooden base 3 is also increased. In comparison, injection into the gap t is also easy.

このような接着機能を持つ硬化性液状樹脂材料からなるコーキング剤としては、低粘性ボンドとして市販される各種の液状接着剤、例えばエポキシ樹脂系やポリエステル樹脂系の接着剤を好適に使用できる。   As a caulking agent made of a curable liquid resin material having such an adhesive function, various liquid adhesives commercially available as low-viscosity bonds, for example, epoxy resin-based or polyester resin-based adhesives can be suitably used.

また、この実施形態では、基礎コンクリート１と木製土台３との間に介在する基礎スペーサー４のボルト挿通部４ａの内側にリング状パッキン１０が配置することにより、ボルト挿通孔３ａとアンカーボルト２との隙間ｔに充填されたコーキング剤７が該隙間ｔの底部側から漏出するのを阻止できる上、基礎コンクリート１から突出したアンカーボルト２が根元まで空気遮断されるため、その根元の錆化も防止される。更に、アンカーボルト２の頂部２ａとナット５も、グリス８入りのキャップ９によって外気から遮断されて長期にわたって錆止めされるから、建物基礎部の耐久性がより向上することになる。   Further, in this embodiment, the ring-shaped packing 10 is arranged inside the bolt insertion portion 4a of the foundation spacer 4 interposed between the foundation concrete 1 and the wooden base 3, so that the bolt insertion hole 3a and the anchor bolt 2 are In addition to preventing the caulking agent 7 filled in the gap t from leaking out from the bottom side of the gap t, the anchor bolt 2 protruding from the foundation concrete 1 is air-blocked to the root, so that the rusting of the root also occurs. Is prevented. Furthermore, since the top part 2a and the nut 5 of the anchor bolt 2 are also shielded from the outside air by the cap 9 containing the grease 8 and are rust-prevented for a long period of time, the durability of the building foundation part is further improved.

なお、前記実施形態では基礎コンクリート１が床下空間を形成しない平地式基礎である場合を例示したが、この発明は一般的な布基礎やべた基礎、これら両者の組み合わせ基礎等にも適用可能であり、これらの場合には基礎スペーサーとしてアンカーボルト毎に独立した厚板状のものを使用できる。ただし、例示した平地式基礎では概して木製土台３の位置が低くなり、それだけ外気中の湿気が屋内に入り込み易いが、前記実施形態では基礎スペーサー４がパッキンとして基礎コンクリート１と木製土台３との間を土台全長にわたって封止するから、土台下の隙間から湿気が屋内へ侵入するのを防止できる。   In the above embodiment, the case where the foundation concrete 1 is a flat ground foundation that does not form an under-floor space is exemplified, but the present invention can be applied to a general cloth foundation, a solid foundation, a combination foundation of these both, and the like. In these cases, a thick plate independent for each anchor bolt can be used as a basic spacer. However, in the illustrated flat foundation, the position of the wooden base 3 is generally low, and the moisture in the outside air easily enters the indoor space. However, in the above embodiment, the base spacer 4 serves as a packing between the basic concrete 1 and the wooden base 3. Since the base is sealed over the entire length of the base, it is possible to prevent moisture from entering the indoor through a gap under the base.

更に、この発明においては、コーキング剤７の注入手段として、図２に例示した以外の様々な形態の注入具を使用できると共に、ボルト挿通孔３ａの開口部を適当に封じてコーキング剤７を隙間ｔに加圧充填する方式も採用可能である。また、リング状パッキン１０としてアンカーボルト２に内周が密接するものを用い、コーキング剤７がボルト挿通孔３ａのみに充填される構成も採用可能である。その他、この発明の建物基礎構造の細部構成については実施形態以外に種々設計変更可能である。   Furthermore, in the present invention, various types of injection tools other than those illustrated in FIG. 2 can be used as the injection means for the caulking agent 7, and the opening of the bolt insertion hole 3 a is appropriately sealed so that the caulking agent 7 is separated from the gap. A method of pressurizing and filling t can also be adopted. Further, it is possible to employ a structure in which the inner periphery of the ring-shaped packing 10 is in close contact with the anchor bolt 2 and the caulking agent 7 is filled only in the bolt insertion hole 3a. In addition, the detailed configuration of the building foundation structure of the present invention can be variously modified in addition to the embodiment.

この発明の一実施形態に係る建物基礎構造を示す縦断側面図である。It is a vertical side view which shows the building foundation structure which concerns on one Embodiment of this invention. 同建物基礎構造の構築操作の初期段階を示す縦断側面図である。It is a vertical side view which shows the initial stage of construction operation of the building foundation structure. 同構築操作の中間段階を示す縦断側面図である。It is a vertical side view which shows the intermediate | middle stage of the construction operation.

符号の説明Explanation of symbols

１ 基礎コンクリート
２ アンカーボルト
２ａ 頂部
３ 木製土台
３ａ ボルト挿通孔
４ 基礎スペーサー
４ａ ボルト挿通部
５ ナット
７ コーキング剤
８ グリス
９ キャップ
１０ リング状スペーサー
ｔ 隙間 DESCRIPTION OF SYMBOLS 1 Foundation concrete 2 Anchor bolt 2a Top part 3 Wooden base 3a Bolt insertion hole 4 Foundation spacer 4a Bolt insertion part 5 Nut 7 Caulking agent 8 Grease 9 Cap 10 Ring-shaped spacer t Clearance

Claims (5)

基礎コンクリート上に配置する木製土台のボルト挿通孔に、該基礎コンクリートに植設されたアンカーボルトを貫通し、このアンカーボルトの上方突出した頂部にナットを螺合緊締して前記木製土台を基礎コンクリートに固定する建物基礎構造において、
前記木製土台のボルト挿通孔が前記アンカーボルトよりも径大に構成され、該ボルト挿通孔とアンカーボルトとの隙間にコーキング剤が充填されてなることを特徴とする建物基礎構造。 An anchor bolt planted in the foundation concrete is passed through the bolt insertion hole of the wooden foundation placed on the foundation concrete, and a nut is screwed and tightened to the top portion of the anchor bolt protruding upward, thereby attaching the wooden foundation to the foundation concrete. In the building foundation structure fixed to
A building foundation structure in which a bolt insertion hole of the wooden base is configured to be larger in diameter than the anchor bolt, and a caulking agent is filled in a gap between the bolt insertion hole and the anchor bolt. 前記コーキング剤が接着機能を持つ硬化性液状樹脂材料からなる請求項１に記載の建物基礎構造。   The building foundation structure according to claim 1, wherein the caulking agent is made of a curable liquid resin material having an adhesive function. 基礎コンクリートと木製土台との間に基礎スペーサーが介在すると共に、該基礎スペーサーのボルト挿通部の内側に、前記アンカーボルトに外嵌するリング状パッキンが配置されてなる請求項１又は２に記載の建物基礎構造。   3. The ring packing according to claim 1 or 2, wherein a foundation spacer is interposed between the foundation concrete and the wooden base, and a ring-shaped packing that is externally fitted to the anchor bolt is disposed inside the bolt insertion portion of the foundation spacer. Building foundation structure. 前記基礎コンクリートが床下空間を形成しない平地式基礎であり、前記基礎スペーサーが該基礎コンクリートと木製土台との間を土台全長にわたって封止するパッキンをなす請求項３に記載の建物基礎構造。   The building foundation structure according to claim 3, wherein the foundation concrete is a flat ground foundation that does not form an underfloor space, and the foundation spacer forms a packing that seals between the foundation concrete and the wooden foundation over the entire length of the foundation. 前記アンカーボルトの頂部から前記ナットの外周部にわたり、グリス入りキャップが冠着されてなる請求項１〜４のいずれか１項に記載の建物基礎構造。   The building foundation structure according to any one of claims 1 to 4, wherein a cap containing grease is crowned from a top portion of the anchor bolt to an outer peripheral portion of the nut.
JP2008252321A 2008-09-30 2008-09-30 Building foundation structure Pending JP2010084352A (en)

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Publication number Priority date Publication date Assignee Title
KR200461662Y1 (en) 2010-08-20 2012-07-30 주식회사 픽슨 Joining device for corrugated steel plate
JP2013147833A (en) * 2012-01-18 2013-08-01 Sekisui Chem Co Ltd Grout holding member, foundation structure of building, and construction method thereof
CN103556652A (en) * 2013-11-22 2014-02-05 北京金风科创风电设备有限公司 Corrosion prevention device and method for anchor bolt and high-strength screw rod
JP2017133195A (en) * 2016-01-26 2017-08-03 三菱重工業株式会社 Caulking material composition, caulking material, chemical anchor, and construction method for caulking material
JP2018127805A (en) * 2017-02-08 2018-08-16 城東テクノ株式会社 Anchor holder

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JPS5774411A (en) * 1980-10-29 1982-05-10 Nippon Casting Co Ltd Anti-rust and anti-corrosion method of support
JPS59167209U (en) * 1983-04-25 1984-11-09 三菱油化株式会社 Base material for foundation moisture proofing
JPH01150702U (en) * 1988-03-28 1989-10-18
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JP2004250966A (en) * 2003-02-19 2004-09-09 Sekisui Chem Co Ltd Foundation structure of building and its construction method
JP2008057269A (en) * 2006-09-01 2008-03-13 Asahi Danke:Kk Rising foundation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200461662Y1 (en) 2010-08-20 2012-07-30 주식회사 픽슨 Joining device for corrugated steel plate
JP2013147833A (en) * 2012-01-18 2013-08-01 Sekisui Chem Co Ltd Grout holding member, foundation structure of building, and construction method thereof
CN103556652A (en) * 2013-11-22 2014-02-05 北京金风科创风电设备有限公司 Corrosion prevention device and method for anchor bolt and high-strength screw rod
JP2017133195A (en) * 2016-01-26 2017-08-03 三菱重工業株式会社 Caulking material composition, caulking material, chemical anchor, and construction method for caulking material
JP2018127805A (en) * 2017-02-08 2018-08-16 城東テクノ株式会社 Anchor holder

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