JP5296397B2 - Foundation structure of concrete foundation - Google Patents

Foundation structure of concrete foundation Download PDF

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JP5296397B2
JP5296397B2 JP2008060014A JP2008060014A JP5296397B2 JP 5296397 B2 JP5296397 B2 JP 5296397B2 JP 2008060014 A JP2008060014 A JP 2008060014A JP 2008060014 A JP2008060014 A JP 2008060014A JP 5296397 B2 JP5296397 B2 JP 5296397B2
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foundation
wooden
concrete foundation
receiving member
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JP2009215770A (en
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進一郎 廣瀬
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進一郎 廣瀬
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sill structure of a new concrete foundation which not only extremely easily and positively secures the horizontality of a top surface of a sill with favorable accuracy but also is economical and achieved in complete underfloor ventilation, and to provide a sill receiving member of the concrete foundation. <P>SOLUTION: The wooden sill 11 is made to penetrate screw rods 20, 21 protruding from an upper surface 10a of the concrete foundation 10, and held on the foundation. In the sill structure, the sill receiving member 30 having a receiving seat surface 30a on a lower side 11b of the wooden sill 11 is screwed to the screw rods 20, 21, and the wooden sill 11 is held between fastening nuts 40 on an upper surface 11a of the sill and the sill receiving members. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

この発明は、建築物の土台構造に関し、特にはコンクリート基礎の上面から突出するねじ棒に対して木製土台を貫通保持する構造に関する。 This invention relates to foundation structure of a building, in particular relates to a structure that penetrates holding wooden foundation against threaded rod projecting from the upper surface of the concrete foundation.

木造住宅等の建築物の土台構造では、当該建築物の荷重を安定して支えるために地盤上にコンクリート基礎が敷設される。そして、このコンクリート基礎の上面に建築物の木製土台が設置される。この木製土台の設置は、コンクリート基礎内に埋設され基礎上面から突出するアンカーボルト等のねじ棒を木製土台に貫設し、木製土台上面で締付ナットを螺着してなされる。 The foundation structure of a building wooden houses, etc., concrete foundation on ground to support the load of the building stably is laid. And the wooden base of a building is installed in the upper surface of this concrete foundation. The wooden base is installed by inserting a screw rod such as an anchor bolt embedded in the concrete foundation and protruding from the upper surface of the foundation into the wooden base and screwing a tightening nut on the upper surface of the wooden base.

伝統的に行われているこの種の土台構造にあっては、図７に示すように、木製土台１１の下面１１ｂがコンクリート基礎１０の上面１０ａに密接して固定される。この構造では、床下の換気の必要性から、コンクリート基礎の側面に通気口１３が形成される。図において、符号２０はアンカーボルト、４０は締付ナット、４１は座金、１２は柱である。 In this type of foundation structure it is traditionally done, as shown in FIG. 7, the lower surface 11b of the wooden base 11 is closely fixed to the upper surface 10a of the concrete foundation 10. In this structure, the vent hole 13 is formed on the side surface of the concrete foundation due to the necessity of ventilation under the floor. In the figure, reference numeral 20 is an anchor bolt, 40 is a tightening nut, 41 is a washer, and 12 is a pillar.

この土台構造では、木製土台１１がコンクリート基礎１０の上面（天端）１０ａに接することから、土台１１の水平性を出すためには、コンクリート基礎上面１０ａを平滑にすることが必要で、通常レベラーと呼ばれる流動性の高いモルタルを流し込む作業が行われている（天端モルタル掛け工法）。しかしながら、基礎全周のすべての天端をモルタルの流し込みのみによって、要求される高さに水平を出すことは、手間や時間や費用をかけても物理的に困難である。また、この構造では、木製土台１１がコンクリート基礎１０に接することにより腐朽しやすくなりシロアリ等の問題を発生するおそれがある。さらに、建物の荷重などによって通気口１３の角部に経時的に亀裂Ｃを生ずることがしばしばあり、強度上の問題のみならず外観性も低下し補修などの必要がある。 In this foundation structure, since the wooden foundation 11 is in contact with the upper surface (top end) 10a of the concrete foundation 10, it is necessary to make the concrete foundation upper surface 10a smooth in order to obtain the horizontality of the foundation 11, and usually a leveler. The work which pours the high fluidity mortar called is called (the top mortar hanging construction method). However, by all of the top edge of the foundation entire circumference only pouring of the mortar, the issuing the horizontal to the required height, even over time and labor and cost is physically difficult. Moreover, in this structure, when the wooden base 11 touches the concrete foundation 10, it becomes easy to decay and there exists a possibility of generating problems, such as a termite. In addition, cracks C often form over time at the corners of the air vent 13 due to the load of the building, etc., and not only the problem of strength but also the appearance is reduced, and repairs are necessary.

これに対して、図８に示すように、コンクリート基礎１０の上面１０ａにパッキン材７０を介装して木製土台１１を設置する土台構造が知られている（基礎パッキン工法。例えば、特許文献１参照）。この土台構造では、コンクリート基礎１０の上面１０ａと木製土台１１の下面１１ｂとの間にプラスチック等のパッキン材７０が介在されるので、床下の通気性が確保され、前記の通気口を設ける必要がなくなり、木製土台の腐朽や通気口の亀裂等の問題は解消される。なお、図８において図７と同一符号は同一部材を表す。 On the other hand, as shown in FIG. 8 , a foundation structure is known in which a wooden foundation 11 is installed on a top surface 10a of a concrete foundation 10 with a packing material 70 interposed therebetween (a foundation packing method, for example, Patent Document 1). reference). In this foundation structure, since the packing material 70 such as plastic is interposed between the upper surface 10a of the concrete foundation 10 and the lower surface 11b of the wooden foundation 11, it is necessary to ensure air permeability under the floor and to provide the vent hole. This eliminates problems such as decay of the wooden base and cracks in the vents. In FIG. 8 , the same reference numerals as those in FIG. 7 denote the same members.

しかしながら、このパッキン材７０を介装する土台構造では、多数のパッキン材を敷設する必要があるばかりでなく、コンクリート基礎１０ａの上面に接する形でパッキン材７０が配置されるため、土台１１の水平性を出すためには、前記と同様に、コンクリート基礎上面１０ａの凹凸により、厚みの異なる複数種類のパッキン材を用いたり、あるいはパッキン材の厚みを調整したりする必要があり、煩雑であるばかりか、精度の高い水平度を出すことは困難であった。
特開２００２−２７６０４２号公報 However, in the base structure in which the packing material 70 is interposed, not only is it necessary to lay a large number of packing materials, but also the packing material 70 is arranged in contact with the upper surface of the concrete foundation 10a. In order to improve the properties, it is necessary to use a plurality of types of packing materials having different thicknesses or to adjust the thickness of the packing materials due to the unevenness of the concrete foundation upper surface 10a, as described above, which is complicated. However, it was difficult to achieve a high level of accuracy.
JP 2002-276042 A

この発明は前記の点に鑑みなされたものであり、極めて簡単かつ容易に、土台天面の水平度を精度よく確実に確保できるばかりでなく、経済的であり、さらには床下換気も完全になされる新規なコンクリート基礎の土台構造及び土台受け部材を提供するものである。   The present invention has been made in view of the above points, and is extremely simple and easy, not only can ensure the levelness of the top surface of the foundation accurately and reliably, but also is economical, and underfloor ventilation is also completely achieved. A new concrete foundation foundation structure and foundation receiving member are provided.

すなわち、請求項１の発明は、コンクリート基礎と、前記コンクリート基礎の上面の上方に設置される木製土台と、前記コンクリート基礎の上面から突出し、前記木製土台を貫通するねじ棒と、前記木製土台の下面側に当接する受け座面、その受け座面の中央部に形成されて前記ねじ棒に螺着するねじ穴部、および回動用治具と係合するための係合部を有し、前記ねじ穴部が前記ねじ棒に螺着され、前記木製土台の荷重を保持する耐荷重性能を有する土台受け部材と、前記ねじ棒に螺着され、前記木製土台の上面側を締め付ける締付ナットと、を備え、前記木製土台が前記土台受け部材と前記締付ナットとの間で保持されることで、前記土台受け部材と前記コンクリート基礎との間に空間が形成され、かつ、前記木製土台と前記コンクリート基礎との間に空間が形成され、前記土台受け部材が埋設されることなく、前記木製土台の高さ調整が可能であることを特徴とするコンクリート基礎の土台構造に係る。 That is, the invention of claim 1 is a concrete foundation, a wooden base installed above the upper surface of the concrete foundation, a screw rod protruding from the upper surface of the concrete foundation and penetrating the wooden foundation, A receiving seat surface abutting on the lower surface side, a screw hole portion formed at a central portion of the receiving seat surface and screwed to the screw rod, and an engaging portion for engaging with a rotating jig, A base receiving member having a load-bearing performance in which a screw hole portion is screwed to the screw rod and holds the load of the wooden base; a tightening nut that is screwed to the screw rod and tightens the upper surface side of the wooden base; A space is formed between the base receiving member and the concrete foundation, and the wooden base is held between the base receiving member and the clamping nut, and the wooden base Concrete A space is formed between the foundation, the foundation received without is embedded member, according to the base structure of the concrete foundation, wherein said is possible height adjustment of the wooden foundation.

請求項１の発明は、土台受け部材の螺着位置を調整することによって、極めて簡単かつ容易に短時間に、土台天面の水平度を精度よく確実に確保することができる。のみならず、コンクリート基礎上面の平滑性を出すための作業を要せず、ねじ棒に土台受け部材を螺着するだけであるから、材料的にも工法的にも極めて経済的であり、さらにはコンクリート基礎の上面と木製土台とが接しないので、床下換気が完全になされる。加えて、木製土台の貫通保に際しては、木製土台が一定間隔で下面側で土台受け部材に上面側で締付ナットによって緊締されるので、木材の歪みがなくなり（木材のムラ取りが自動的になされる）真っ直ぐになるという利点がある。なお、土台受け部材を埋設しないため、建物が完成した後であっても、いつでも必要により土台の高さ調整が可能である。 The invention of claim 1, by adjusting the screwing position of the soil table receiving member, it is possible to very simply and easily in a short time, accurately reliably ensure levelness of the base top surface. In addition, it does not require the work to bring out the smoothness of the upper surface of the concrete foundation, and only screws the base receiving member onto the screw rod, so it is extremely economical both in terms of material and construction. Since the upper surface of the concrete foundation does not contact the wooden base, ventilation under the floor is completely achieved. In addition, when penetrating the wooden base, the wooden base is fastened to the base receiving member at the lower surface side at regular intervals by the tightening nut on the upper surface side, so that there is no distortion of the wood (the unevenness of the wood is automatically removed). Has the advantage of being straightened. Since the foundation receiving member is not embedded, the height of the foundation can be adjusted at any time even after the building is completed.

土台受け部材は、簡略な構造で製作上及び経済上の有利性がある。土台受け部材の高さ調節はねじによってなされるので、無段階で微妙な調整を精度良く簡単かつ容易に行える。 The base receiving member has a simple structure and has manufacturing and economic advantages. Since the height of the base receiving member is adjusted by screws, fine adjustment can be performed easily and easily with no precision.

以下添付の図面に従って、この発明の実施例を説明する。図１はこの発明のコンクリート基礎の土台構造の実施例を示す要部の断面図、図２はその一部の拡大断面図、図３は土台の高さ調整を行う状態を表す断面図、図４は土台受け部材とその回動用治具の実施例を表す斜視図、図５は土台受け部材の他の実施例を表す斜視図、図６はさらに土台受け部材の別の実施例を表す斜視図である。 Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of an essential part showing an embodiment of a foundation structure of a concrete foundation of the present invention, FIG. 2 is an enlarged cross-sectional view of a part thereof, and FIG. 3 is a cross-sectional view showing a state in which the height of the base is adjusted, 4 is a perspective view showing an embodiment of the base receiving member and its rotating jig, FIG. 5 is a perspective view showing another embodiment of the base receiving member, and FIG. 6 is a perspective view showing another embodiment of the base receiving member. FIG.

図１及びその要部拡大図である図２に示したように、この発明は、コンクリート基礎１０内に埋設されてその上面１０ａから突出するねじ棒２０，２１に対して、木製土台１１を貫通保持する構造に関する。この発明のコンクリート基礎の土台構造は、木製土台１１の下面側１１ｂにおいて、受け座面３０ａを有する土台受け部材３０が前記ねじ棒２０，２１に螺着され、前記木製土台１１が上面側１１ａの締付ナット４０との間で保持されていることを特徴とする。図の符号１４は木製土台の貫通孔である。   As shown in FIG. 1 and FIG. 2 which is an enlarged view of the main part, the present invention penetrates the wooden base 11 with respect to the screw rods 20 and 21 which are embedded in the concrete foundation 10 and protrude from the upper surface 10a. It relates to the structure to hold. In the foundation structure of the concrete foundation of the present invention, a base receiving member 30 having a receiving seat surface 30a is screwed to the screw rods 20 and 21 on the lower surface side 11b of the wooden base 11, and the wooden base 11 is formed on the upper surface side 11a. It is characterized by being held between the tightening nuts 40. Reference numeral 14 in the figure is a through hole of a wooden base.

図のように、土台受け部材３０はねじ棒２０，２１に回動自在に螺着されるので、回動用治具による回動による高さ調整が可能である。図３は、土台１１の高さ調整を行う状態を示し、同図における（ｂ）が標準高さであるとすると、（ａ）は低いのでその土台受け部材３０（３０Ａ）をねじ棒２０（２０Ａ）に対して反時計回りｔ１に回して上昇させ、また（ｃ）は高いのでその土台受け部材３０（３０Ｃ）をねじ棒２０（２０Ｃ）に対して時計回りｔ２に回して下降させて、土台１１の天面１１ａの不陸を調整して水平保持を行う。調整完了後に、木製土台１１の上面側１１ａの締付ナット４０の緊締を行うことはいうまでもない。符号４１は締付ナット４０の座金である。   As shown in the figure, since the base receiving member 30 is rotatably attached to the screw rods 20 and 21, the height can be adjusted by turning with a turning jig. FIG. 3 shows a state in which the height of the base 11 is adjusted. If (b) in FIG. 3 is a standard height, the base receiving member 30 (30A) is attached to the screw rod 20 ( 20A) is turned counterclockwise t1 and raised, and (c) is high, so its base receiving member 30 (30C) is turned clockwise t2 with respect to the screw rod 20 (20C) and lowered. Horizontal adjustment is performed by adjusting the unevenness of the top surface 11a of the base 11. Needless to say, after the adjustment is completed, the tightening nut 40 on the upper surface side 11a of the wooden base 11 is tightened. Reference numeral 41 denotes a washer for the tightening nut 40.

ねじ棒は、図示したように、従来一般に用いられているアンカーボルト２０又はホールダウン金物４２用のねじ棒２１を用いることができる。コンクリート基礎用のアンカーボルト２０は、例えば、直径１６ｍｍ、ねじピッチ２ｍｍを有し、通常９１０ｍｍ間隔で立設されており、これを用いることが有利である。また、ホールダウン金物４２用のねじ棒２１はコンクリート基礎１０と柱１２脚部との緊締等に用いられもので、同じく直径１６ｍｍ、ねじピッチ２ｍｍである。図１に図示したホールダウン金物４２に関して、４３は柱１２の側面１２ｃへの取付板、４４は取付ビス、４５は取付板４３と一体に形成されたねじ棒貫通部、４６は締付ナット、４７は座金である。 As shown in the figure, the screw rod 21 for the anchor bolt 20 or the hole-down hardware 42 that is generally used can be used as the screw rod. The anchor bolt 20 for a concrete foundation has, for example, a diameter of 16 mm and a screw pitch of 2 mm, and is usually erected at intervals of 910 mm, and it is advantageous to use this. The screw rod 21 for the hole-down hardware 42 is used for tightening the concrete foundation 10 and the column 12 leg portion, and has a diameter of 16 mm and a screw pitch of 2 mm. 1, 43 is a mounting plate to the side surface 12c of the column 12, 44 is a mounting screw, 45 is a screw rod penetrating portion formed integrally with the mounting plate 43, 46 is a tightening nut, 47 is a washer.

なお図１の符号２２で示すねじ棒は、土台１１の端部用のねじ棒で、図のように隅柱１２の下に位置する場合などには土台１１を貫通せずに、土台受け部材３０の受け座面３０ａのみで保持する場合もある。   1 is a screw rod for the end portion of the base 11, and when it is located under the corner pillar 12 as shown in the figure, the base 11 does not penetrate the base 11 and does not penetrate. In some cases, only 30 receiving seat surfaces 30a may be held.

次に、土台受け部材３０について説明する。既に述べたように、この発明の土台受け部材３０は、受け座面３０ａと、前記受け座面の中央部に形成されたねじ穴部３１と、前記受け座面３０ａの側面部に形成された回動用治具５０の係止部５１と係合するための係合部３２とを有する。   Next, the base receiving member 30 will be described. As already described, the base receiving member 30 of the present invention is formed on the receiving seat surface 30a, the screw hole portion 31 formed at the center of the receiving seat surface, and the side portion of the receiving seat surface 30a. It has the engaging part 32 for engaging with the latching | locking part 51 of the jig | tool 50 for rotation.

受け座面３０ａは、前記したように、木製土台１１の下面に接して当該木製土台の荷重を保持する部分であって、必要な耐荷重性能を有する。前記したように、従来一般的なコンクリート基礎用のアンカーボルトは直径１６ｍｍ、ねじピッチ２ｍｍを有し、通常９１０ｍｍ間隔で立設されており、これを用いることが有利であるから、これを基準として、受け座面３０ａの大きさや強度計算がなされる。図４に示した例の土台受け部材３０は鉄材よりなり、受け座面３０ａの大きさは板厚が１６ｍｍ、直径８０ｍｍの円形に形成されている。受け座面３０ａの中央部に形成されたねじ穴部３１のねじ径は一般的なアンカーボルト２０に螺着するために１６ｍｍ、ねじピッチ２ｍｍとしてある。なお、ねじ棒２０とねじ穴部３１との関係は、この例のほかに、直径が１２〜１６ｍｍ、ねじピッチ１．５ｍｍなどがある。 As described above, the receiving seat surface 30a is a portion that is in contact with the lower surface of the wooden base 11 and holds the load of the wooden base, and has a necessary load bearing performance. As described above, a conventional anchor bolt for a concrete foundation has a diameter of 16 mm and a screw pitch of 2 mm, and is usually erected at an interval of 910 mm. Then, the size and strength of the receiving surface 30a are calculated. The base receiving member 30 in the example shown in FIG. 4 is made of an iron material, and the size of the receiving seat surface 30a is a circle having a plate thickness of 16 mm and a diameter of 80 mm. The screw diameter of the screw hole portion 31 formed in the central portion of the receiving seat surface 30a is 16 mm for screwing to a general anchor bolt 20 and the screw pitch is 2 mm. In addition to this example, the relationship between the screw rod 20 and the screw hole 31 includes a diameter of 12 to 16 mm and a screw pitch of 1.5 mm.

土台受け部材３０は、その材質を金属又はプラスチックとすることが有利である。金属としては、前記した鉄材のほかアルミ材などを使用できる。プラスチックは量産化や軽量化が容易で、経済性がある。 Base receiving member 30, it is advantageous to the material of its metal or plastic. As the metal, an aluminum material or the like can be used in addition to the iron material described above. Plastics are easy to mass-produce and light weight, and are economical.

図６に示したように、土台受け部材３０（３５）の受け座面３０ａには適宜の貫通部３９を形成することができる。軽量化を図ることができる。図６の貫通部は円形状で３ケ所形成したが、形状や個数は適宜とすることができる。符号３７は回動用治具のための切欠係合部である。 As shown in Figure 6, the receiving seat face 30a of the base receiving member 30 (35) can form a suitable penetration portion 39. Weight reduction can be achieved. Although the penetration part of FIG. 6 was circular and formed in three places, the shape and the number can be set as appropriate. Reference numeral 37 denotes a notch engaging portion for a turning jig.

受け座面３０ａの側面部には、回動用治具５０の係止部５１と係合するための係合部３２が形成される。図４の実施例の土台受け部材３０にあっては、受け座面３０ａの平面形状が円形であり、受け座面の側面円周部３０ｂには回動用治具５０の突起部５１と係合するための複数の係合部３２が形成されている。この例の係合部３２は孔部で受け座面の側面円周部３０ｂの９０度間隔で４ケ所形成されている。 An engaging portion 32 for engaging with the locking portion 51 of the turning jig 50 is formed on the side surface portion of the receiving seat surface 30a. Figure embodiments In the base receiving member 30 of 4, the planar shape of the accepted seat surface 30a is circular, the side circumference 30b of the seat surface engagement with the protrusion 51 of the rotating jig 50 A plurality of engaging portions 32 for joining are formed. In this example, the engaging portions 32 are formed at four locations at intervals of 90 degrees of the side surface circumferential portion 30b of the receiving seat surface by holes.

図５に図示の土台受け部材６０は、受け座面６０ａの平面形状が正多角形、ここでは正六角形状であり、その各側面部６２が回動用治具と係合するための係合面として形成されたものである。このような正多角形状の土台受け部材６０は、回動用治具としてスパナ等の汎用工具の使用が可能で、かつ製作が容易かつ経済的で、使い勝手がよく、実用的であるという利点を有する。 Base receiving member 60 shown in Figure 5, regular polygonal planar shape of accepted seat surface 60a, here a regular hexagonal shape, the engagement for the respective side portions 62 are engaged with the rotating jig It is formed as a surface. Such a regular polygon-shaped base receiving member 60 has the advantage that a general-purpose tool such as a spanner can be used as a turning jig, is easy and economical to manufacture, is easy to use, and is practical. .

この発明の土台受け部材３０は、木製土台１１をコンクリート基礎１０上に設置する前に、各ねじ棒２０に螺着される。土台受け部材３０は適当な高さ治具などにより初期設定位置に螺着される。その後、木製土台１１をその貫通孔１４を介してねじ棒２０及び土台受け部材３０に設置する。そして、木製土台１１の上面（天面）１１ａを水準器等によって計測し、回動用治具を用いて必要な土台受け部材６０を回動して土台天面の水平度を調整する。   The base receiving member 30 of the present invention is screwed to each screw rod 20 before the wooden base 11 is installed on the concrete foundation 10. The base receiving member 30 is screwed to the initial setting position by an appropriate height jig or the like. Thereafter, the wooden base 11 is installed on the screw rod 20 and the base receiving member 30 through the through hole 14. Then, the upper surface (top surface) 11a of the wooden base 11 is measured with a level or the like, and a necessary base receiving member 60 is rotated using a rotating jig to adjust the level of the base top surface.

この発明のコンクリート基礎の土台構造の実施例を示す要部の断面図である。It is sectional drawing of the principal part which shows the Example of the foundation structure of the concrete foundation of this invention. 図１の一部の拡大断面図である。It is a partial expanded sectional view of FIG. 土台の高さ調整を行う状態を表す断面図である。It is sectional drawing showing the state which performs height adjustment of a base. 土台受け部材とその回動用治具の実施例を表す斜視図である。It is a perspective view showing the Example of a base receiving member and its rotation jig. 土台受け部材の他の実施例を表す斜視図である。It is a perspective view showing other examples of a foundation receiving member. さらに土台受け部材の別の実施例を表す斜視図である。Furthermore, it is a perspective view showing another Example of a base receiving member. 従来の土台構造の一例を示す断面図である。It is sectional drawing which shows an example of the conventional foundation structure. 従来の土台構造の他の例を示す断面図である。It is sectional drawing which shows the other example of the conventional foundation structure.

１０ コンクリート基礎
１０ａ 基礎上面
１１ 木製土台
１１ｂ 木製土台下面
２０，２１ ねじ棒
３０ 土台受け部材
３０ａ 受け座面
３１ ねじ穴部
３２ 係合部
４０ 締付ナット
５０ 回動用治具 DESCRIPTION OF SYMBOLS 10 Concrete foundation 10a Upper surface 11 Wooden base 11b Wooden base lower surface 20, 21 Screw rod 30 Base receiving member 30a Receiving seat surface 31 Screw hole part 32 Engagement part 40 Tightening nut 50 Jig for rotation

Claims (1)

コンクリート基礎（１０）と、
前記コンクリート基礎の上面（１０ａ）の上方に設置される木製土台（１１）と、
前記コンクリート基礎の上面から突出し、前記木製土台を貫通するねじ棒（２０，２１）と、
前記木製土台の下面側に当接する受け座面（３０ａ、６０ａ）、その受け座面の中央部に形成されて前記ねじ棒に螺着するねじ穴部（３１、３６、６１）、および回動用治具と係合するための係合部（３２、３７、６２）を有し、前記ねじ穴部が前記ねじ棒に螺着され、前記木製土台の荷重を保持する耐荷重性能を有する土台受け部材（３０、３５、６０）と、
前記ねじ棒に螺着され、前記木製土台の上面側（１１ａ）を締め付ける締付ナット（４０）と、を備え、
前記木製土台が前記土台受け部材と前記締付ナットとの間で保持されることで、前記土台受け部材と前記コンクリート基礎との間に空間が形成され、かつ、前記木製土台と前記コンクリート基礎との間に空間が形成され、前記土台受け部材が埋設されることなく、前記木製土台の高さ調整が可能であることを特徴とするコンクリート基礎の土台構造。 Concrete foundation (10);
Wooden base (11) which is installed above the upper surface (10a) of the concrete foundation,
Upper surface or et protrusion of the concrete foundation, a threaded rod (20, 21) which penetrates the wood soil base,
Receiving seat surfaces (30a, 60a) that contact the lower surface side of the wooden base, screw hole portions (31, 36, 61) formed at the center of the receiving seat surface and screwed onto the screw rod, and for rotation has engagement portions for engagement with jig (32,37,62), said threaded hole is screwed to the threaded rod, the base having a load carrying capacity to hold a load of the wooden soil base Receiving members (30 , 35, 60 );
The threaded rod is screwed in, comprising a nut fastening (40) tightening the wooden soil stand upper side (11a),
Said that wood earth base is held between the nut with the said base receiving member fastening, space is formed between the concrete foundation and the base receiving member and the wooden soil a space is formed between the concrete foundation and base, said base receiving without is embedded member, the foundation structure of the concrete foundation, wherein said is possible height adjustment of the wooden foundation.
JP2008060014A 2008-03-10 2008-03-10 Foundation structure of concrete foundation Active JP5296397B2 (en)

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