JP3023266B2 - Precast concrete foundation and foundation structure - Google Patents
Precast concrete foundation and foundation structureInfo
- Publication number
- JP3023266B2 JP3023266B2 JP5251064A JP25106493A JP3023266B2 JP 3023266 B2 JP3023266 B2 JP 3023266B2 JP 5251064 A JP5251064 A JP 5251064A JP 25106493 A JP25106493 A JP 25106493A JP 3023266 B2 JP3023266 B2 JP 3023266B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- foundation
- connection
- precast concrete
- foundations
- 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.)
- Expired - Fee Related
Links
Landscapes
- Foundations (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、プレキャストコンクリ
ート基礎同士の連結部における補強鉄筋の取り付け作業
を簡略化しても強固に連結できるプレキャストコンクリ
ート基礎およびこれを用いた基礎構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete foundation which can be firmly connected even when the operation of attaching a reinforcing reinforcing bar at a joint between the precast concrete foundations is simplified, and a foundation structure using the same.
【０００２】[0002]
【従来の技術】建築物を安定した状態で構築するために
は、まず地盤に基礎部を安定かつ的確に構築する必要が
ある。従来、住宅用の基礎部は、まず建物構築部分の地
盤を連続的に掘削して根切り部を形成し、この根切り部
に玉砂利を敷いて型枠を組み、支持手段を介してこの型
枠を立設支持させ、そして、この型枠内にコンクリート
を打設し、養生して固化させた後、型枠を取り外し表面
をモルタル処理して構築されていた。2. Description of the Related Art In order to construct a building in a stable state, it is necessary to construct a foundation on the ground stably and accurately. Conventionally, a foundation for a house is constructed by first excavating the ground of a building construction part continuously to form a root cutting part, laying a gravel on the root cutting part, assembling a formwork, and forming this mold through supporting means. The frame is erected and supported, and concrete is poured into the mold, cured and solidified, then the mold is removed and the surface is treated with mortar.
【０００３】そして、この従来の基礎構築作業におい
て、型枠を根切り部に沿って連続して立設する作業は、
手間のかかるもので工期の長期化につながり、コストを
上昇させるものであった。また、コンクリートを養生す
る作業も、数日を必要とするもので工期を長引かせる原
因となっており、さらに、型枠の取り外しやモルタル処
理も手間のかかる作業であった。[0003] In this conventional foundation construction work, the work of continuously erecting the formwork along the root cutting portion is performed by:
This was troublesome, leading to a longer construction period and increased costs. In addition, the work of curing concrete also requires several days, which causes the construction period to be prolonged, and the removal of the formwork and the mortar treatment are also troublesome.
【０００４】そこで、建築現場における基礎部構築作業
をより簡略化かつ迅速化するために、工場段階において
予め製造されたプレキャストコンクリート（以下ＰＣと
いう）基礎を根切り部に設置する構築形式が考えられ
た。In order to simplify and speed up the work of constructing a foundation at a construction site, a construction method in which a precast concrete (hereinafter, referred to as PC) foundation preliminarily manufactured at a factory stage is installed at a root cutting portion is considered. Was.
【０００５】[0005]
【発明が解決しようとする課題】このＰＣ基礎を接合し
て連結するときの状態を図４に示す。同図において、Ｐ
Ｃ基礎１００は、ほぼ矩形の板状に形成された立上り部
１０２の両端部に横断面コ字状の接続部１０４が設けら
れてなり、この接続部１０４の内側には用心筋１０６が
突出して埋設されている。そして、ＰＣ基礎１００同士
を連設するときには、接続部１０４を対向させて接合
し、この接続部１０４の内側に上下２つの補強鉄筋１１
０をそれぞれ挿入し、この補強鉄筋１１０と上記用心筋
１０６とを針金等で結び、接続部１０４内にコンクリー
トを打設して結合していた。FIG. 4 shows a state in which the PC bases are joined and connected. In FIG.
The C base 100 is provided with connecting portions 104 having a U-shaped cross section at both ends of a rising portion 102 formed in a substantially rectangular plate shape, and a myocardium 106 protrudes inside the connecting portion 104. It is buried. When connecting the PC foundations 100 to each other, the connection portions 104 are joined to face each other, and two upper and lower reinforcing reinforcing bars 11 are provided inside the connection portions 104.
0 was inserted, and the reinforcing bar 110 and the myocardium 106 were connected with a wire or the like, and concrete was cast into the connecting portion 104 to be connected.
【０００６】こうして、結び付けられて一体化した補強
鉄筋１１０と用心筋１０６とを包むようにして接続部１
０４内にコンクリートが打設され固化されるので、隣接
するＰＣ基礎１００同士が一体化して強固に連設される
ようになっていた。[0006] In this manner, the connecting portion 1 is wrapped around the reinforcing bar 110 and the myocardium 106 which are combined and integrated.
Since concrete is poured into and solidified in 04, the adjacent PC foundations 100 are integrated and firmly connected.
【０００７】しかし、補強鉄筋１１０と用心筋１０６と
を結び付ける作業は、接続部１０４の内側という狭い空
間内で行われるため、面倒であるとともに困難であり、
作業者の負担となっていた。また、ＰＣ基礎１００の製
造上、接続部１０４を形成するときに、用心筋１０６が
あると内型枠のセットおよび脱型が複雑になっていた。However, since the work of connecting the reinforcing reinforcing bar 110 and the myocardium 106 is performed in a narrow space inside the connecting portion 104, it is troublesome and difficult.
It was a burden on the workers. In addition, in manufacturing the PC base 100, when the connecting portion 104 is formed, if the myocardium 106 is present, setting and removing the inner mold are complicated.
【０００８】本発明は、上記従来の問題点に鑑みてなさ
れたもので、その目的は、プレキャストコンクリート基
礎同士の連結部において補強鉄筋の結び付け作業を省略
しても強固に連結できるプレキャストコンクリート基礎
およびこれを用いた基礎構造を提供することにある。The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a precast concrete foundation and a precast concrete foundation which can be firmly connected at a connecting portion between the precast concrete foundations even if the operation of connecting reinforcing reinforcing bars is omitted. An object of the present invention is to provide a basic structure using this.
【０００９】[0009]
【課題を解決するための手段】前記目的を達成するため
に、請求項１記載の発明は、プレキャストコンクリート
基礎同士を相互に突き合わせ、このプレキャストコンク
リート基礎同士の突き合わせ部に形成されるコンクリー
ト充填空間にコンクリートを打設して一体化される住宅
の基礎構造であって、前記コンクリート充填空間に面す
る少なくとも一方のプレキャストコンクリート基礎の前
記突き合わせ部には、所定の間隔を置いて対向する２枚
の接続片を有し、他の部分よりも厚肉にされた横断面ほ
ぼコ字状の接続部が形成され、前記接続部の内側奥壁面
及び前記接続片の各対向面に打設コンクリートによる固
定用凹部が形成されることを特徴とする。In order to achieve the above object, according to the present invention, the precast concrete foundations are butted against each other, and a concrete filling space formed at the abutting portion between the precast concrete foundations is provided. A house foundation structure in which concrete is cast and integrated, wherein at least one of the precast concrete foundations facing the concrete-filled space has a butted portion facing at a predetermined interval.
Cross-section that is thicker than the other parts.
A concave connection portion is formed, and an inner rear wall surface of the connection portion is formed.
And fixing recesses by pouring concrete on each facing surface of the connection piece, characterized in that the made form.
【００１０】また、請求項２記載の発明は、板状に形成
されて建物構造体を載置して支持する立上り部と、この
立上り部の側端部に所定の間隔を置いて対向する２枚の
接続片を有し、他の部分よりも厚肉にされた横断面ほぼ
コ字状の接続部と、前記接続部の内側奥壁面及び前記接
続片の各対向面に形成される固定用凹部と、を含み、前
記固定用凹部は、対向して連設させた前記接続部間に打
設されたコンクリートが流入して強固に連結可能に形成
されることを特徴とする。According to a second aspect of the present invention, there is provided a rising portion which is formed in a plate shape and mounts and supports a building structure, and faces a side end of the rising portion at a predetermined interval. Sheets
Cross section with connecting pieces and thicker than other parts
A U-shaped connection portion, an inner rear wall surface of the connection portion, and the connection portion;
Includes a solid titration, the recess formed in each opposing surface of the connection piece, wherein the fixing recess is opposed firmly connectable with concrete flows that was Da設between the connecting portion is continuously provided with It is characterized by being formed in.
【００１１】さらに、請求項３記載の発明は、請求項２
記載のプレキャストコンクリート基礎を、前記接続部を
対向させて連設し、この接続部の内側に補強用鉄筋を挿
入してコンクリートを打設し、前記固定用凹部にコンク
リートをくいこませた状態で固化して、隣接する前記プ
レキャストコンクリート基礎同士を強固に連結したこと
を特徴とする。[0011] Further, the invention according to claim 3 is based on claim 2.
The precast concrete foundation according to the above is connected in series with the connecting portions facing each other, a reinforcing steel bar is inserted inside the connecting portion, concrete is poured, and concrete is poured into the fixing concave portion. It is characterized in that the precast concrete foundations are solidified and firmly connected to each other.
【００１２】[0012]
【作用】本発明によれば、ＰＣ基礎における横断面ほぼ
コ字状の接続部の内側奥壁面及び接続片の各対向面に固
定用凹部が形成されているので、このＰＣ基礎を連設し
て接続部にコンクリートを打設したときに固定用凹部に
コンクリートが流入する。そして、コンクリートが固化
すると、このコンクリートは固定用凹部にくいこんでし
っかりと固定され、対剪断力が増して隣接するＰＣ基礎
同士がしっかりと固定される。また、接続片の各対向面
に形成した固定用凹部によって、剪断力のみならず、横
方向への引っ張り力に対して大きな強度を持たせること
ができる。 さらに、接続部は他の部分よりも厚肉にされ
ているため、接続片の内側に固定用凹部を設けても接続
片内の配筋から固定用凹部までの肉厚を確保することが
でき、ＰＣ基礎の成形性を良好にすることができる。 According to the present invention, since the fixing recesses are formed on the inner inner wall surface of the connection portion having a substantially U-shaped cross section and the opposing surfaces of the connection pieces on the PC base, the PC base is continuously provided. When the concrete is poured into the connection part, the concrete flows into the fixing recess. When the concrete solidifies, the concrete is hardly fixed in the recess for fixing, and the shear strength is increased, so that the adjacent PC foundations are fixed firmly. Also, each opposing surface of the connection piece
Not only the shear force but also the lateral
High strength against pulling force in the direction
Can be. In addition, the connections are thicker than the other parts
Connection, even if a fixing recess is provided inside the connection piece.
It is possible to secure the thickness from the reinforcement in the piece to the fixing recess
Thus, the moldability of the PC base can be improved.
【００１３】特に、請求項３記載の発明によれば、ＰＣ
基礎の接続部には補強用鉄筋を挿入しておくだけで良
く、この補強用鉄筋を結び付ける作業は必要ではない。In particular, according to the third aspect of the present invention, the PC
It is only necessary to insert a reinforcing bar at the connection part of the foundation, and there is no need for an operation of connecting the reinforcing bar.
【００１４】[0014]
【実施例】以下、本発明の実施例について、図面を参照
して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図１は、本実施例に係る基礎構造の全体斜
視図である。同図において、地盤を布掘りして形成され
た根切り部２０のコーナー部および所定位置にＰＣ底盤
３０が設置され、このＰＣ底盤３０間にＰＣ布基礎１０
が架設されている。FIG. 1 is an overall perspective view of a basic structure according to this embodiment. In the figure, a PC base 30 is installed at a corner and a predetermined position of a root cutting portion 20 formed by digging the ground, and a PC cloth base 10 is provided between the PC bases 30.
Has been erected.
【００１６】ＰＣ布基礎１０は、所定の厚さで直方体の
板状に形成されて上端面に建物を載置して支持する立上
り部１６を含む。この立上り部１６は、内部に図示しな
い補強用の鉄筋を有してコンクリートにて構成されてい
る。The PC cloth base 10 includes a rising portion 16 which is formed in a rectangular parallelepiped plate with a predetermined thickness, and supports a building on its upper end surface. The rising portion 16 has a reinforcing steel bar (not shown) inside and is made of concrete.
【００１７】そして、このＰＣ布基礎１０には二種類が
あり、立上り部１６の両端部に他のＰＣ布基礎１０との
結合を行うために肉厚を厚くし横断面コ字状の接続部１
２が形成されたものと、立上り部１６の一方の端部に接
続部１２が形成され、他方の端部には他のＰＣ布基礎１
０と直角に接合するため、軸に直角に突出する凸状の接
続部１４が形成されたものとがある。また、このＰＣ布
基礎１０の表面は、仕上げされた状態となっている。There are two types of PC cloth foundations 10. Both ends of the rising part 16 are thickened in order to connect with the other PC cloth foundations 10, and the connecting portions having a U-shaped cross section are provided. 1
2 and the connecting portion 12 is formed at one end of the rising portion 16 and the other PC cloth base 1 is formed at the other end.
In order to join at right angles to 0, there is a case in which a convex connection portion 14 is formed which projects at right angles to the axis. The surface of the PC cloth base 10 is in a finished state.
【００１８】本実施例において、ＰＣ布基礎１０は、横
断面コ字状の接続部１２の内側面に特徴を有する。この
接続部１２の一部を仮想線で描き、その内側面を示した
のが図２である。In this embodiment, the PC fabric base 10 has a feature on the inner surface of the connecting portion 12 having a U-shaped cross section. FIG. 2 shows a part of the connecting portion 12 by imaginary lines and shows the inner surface thereof.
【００１９】同図において、接続部１２は、厚肉部１３
と二枚の接続片１５とを有してなる。そして、接続片１
５、１５の間における厚肉部１３の端面１３ａに固定用
凹部１７が形成されている。この固定用凹部１７はテー
パー状になっていて、上下方向に複数形成されている。
テーパー状となっていることで、接続部１２に打設され
たコンクリートが固定用凹部１７に流入するときに、固
定用凹部１７とコンクリートとの間に隙間ができること
なく、固定用凹部１７内にコンクリートが密着すること
となる。In FIG. 1, a connecting portion 12 has a thick portion 13.
And two connection pieces 15. And the connection piece 1
A fixing recess 17 is formed in the end surface 13a of the thick portion 13 between the portions 5 and 15. The fixing recess 17 has a tapered shape and is formed in a plurality in the vertical direction.
With the tapered shape, when the concrete poured into the connecting portion 12 flows into the fixing concave portion 17, no gap is formed between the fixing concave portion 17 and the concrete, and the concrete is inserted into the fixing concave portion 17. The concrete will adhere.
【００２０】したがって、このコンクリートは、固化す
ると固定用凹部１７にしっかりとくいこんで固定され、
隣接するＰＣ布基礎１０同士の連結部における剪断力に
対して大きな強度を有するようになる。こうして、隣接
するＰＣ布基礎１０同士は、しっかりと連結されること
となる。Therefore, when the concrete is solidified, it is firmly inserted into the fixing recess 17 and fixed.
It has a large strength against shearing force at the connection between the adjacent PC cloth foundations 10. Thus, the adjacent PC cloth foundations 10 are firmly connected.
【００２１】次に、ＰＣ底盤３０は、図示しない補強用
の鉄筋を内部に有して強化されたコンクリート板であ
る。したがって、このＰＣ底盤３０には予め補強用の鉄
筋が内蔵されているので、建築現場でこの補強用の鉄筋
をこのＰＣ底盤３０上に配設する作業を省略できる。ま
た、このＰＣ底盤３０は、上面が滑らかな平面となって
おり、ＰＣ布基礎１０を架設するときにこの上面に墨出
しを行えるようになっている。Next, the PC bottom 30 is a reinforced concrete plate having a reinforcing steel bar (not shown) therein. Therefore, since reinforcing bars for reinforcing are built in the PC bottom 30 in advance, the work of arranging the reinforcing bars on the PC bottom 30 at the construction site can be omitted. The PC bottom board 30 has a smooth flat upper surface, so that when the PC fabric base 10 is erected, blackout can be performed on the upper surface.
【００２２】本実施例の主要な構成は、上記のように構
成されており、以下この基礎の施工方法について説明す
る。The main configuration of this embodiment is configured as described above, and a method of constructing this foundation will be described below.
【００２３】まず、図１に示すように、地盤を布掘りし
て根切り部２０を形成し、この根切り部２０のコーナー
部および所定位置にＰＣ底盤３０を設置する。First, as shown in FIG. 1, the ground is dug to form a root cutting portion 20, and a PC bottom 30 is installed at a corner of the root cutting portion 20 and at a predetermined position.
【００２４】ここで、このＰＣ底盤３０を根切り部２０
に設置するときには、このＰＣ底盤３０の設置位置に捨
てコンクリート２２の山を載置し、この捨てコンクリー
ト２２の山を潰すようにしてＰＣ底盤３０を載置する。
そして、このＰＣ底盤３０を掛矢等で叩いて所定の高さ
で上面が水平になるよう調整作業を行う。なお、この作
業は、水糸や水準器やレーザー光線による水準装置等を
用いて水平レベルおよび高さを確認しながら行う。こう
して全てのＰＣ底盤３０を所定の同じ高さで水平に設置
する。Here, the PC bottom 30 is connected to the root cutting portion 20.
When installing the PC bottom board 30, the pile of the discarded concrete 22 is placed at the installation position of the PC bottom board 30, and the PC bottom board 30 is placed so as to crush the pile of the discarded concrete 22.
Then, an adjustment operation is performed by hitting the PC bottom plate 30 with a hanging arrow or the like so that the upper surface becomes horizontal at a predetermined height. This operation is performed while checking the horizontal level and the height using a leveler using a water thread, a level, or a laser beam. In this way, all the PC bottom boards 30 are horizontally set at the same predetermined height.
【００２５】次に、ＰＣ底盤３０、３０間に基礎用鉄筋
２４を配設する。この基礎用鉄筋２４は、ＰＣ底盤３０
間を結ぶようにして配置される平行で一対の長鉄筋２４
ａと、この一対の長鉄筋２４ａ間に直角に掛け渡して所
定間隔で並べられた複数の短鉄筋２４ｂとを有し、これ
らが溶接され固定されてなるものである。また、基礎用
鉄筋２４の端部は、捨てコンクリート２２にてＰＣ底盤
３０と固定されており、後述するようにＰＣ布基礎１０
の下部にコンクリートを打設したときに、このＰＣ布基
礎１０は基礎用鉄筋２４を介してＰＣ底盤３０とも一体
化され、このＰＣ布基礎１０を地盤に強固に固定するこ
とができる。Next, a reinforcing bar 24 for the foundation is disposed between the PC bottom boards 30 and 30. This base reinforcing bar 24 is connected to the PC bottom board 30.
A pair of parallel long reinforcing bars 24 arranged so as to connect them
a, and a plurality of short reinforcing bars 24b which are arranged at a predetermined interval so as to extend at right angles between the pair of long reinforcing bars 24a, and these are welded and fixed. The end of the reinforcing steel bar 24 is fixed to the PC bottom 30 by the waste concrete 22, and the PC cloth
When concrete is poured into the lower part of the base, the PC fabric base 10 is integrated with the PC bottom 30 via the reinforcing bar 24, and the PC fabric base 10 can be firmly fixed to the ground.
【００２６】なお、基礎用鉄筋２４とＰＣ底盤３０とを
強固に固定するために、ＰＣ底盤３０の側面に上記長鉄
筋２４ａを嵌入可能な穴や溝を形成しておき、この穴等
に長鉄筋２４ａを嵌入して固定できるようにしても良
い。または、ＰＣ底盤３０の側面から内蔵された補強鉄
筋を突出させておき、この補強鉄筋の突出部と上記長鉄
筋２４ａとを針金等で結合しても良い。In order to firmly fix the base reinforcing bar 24 and the PC bottom 30, a hole or a groove in which the long reinforcing bar 24 a can be fitted is formed on the side surface of the PC bottom 30, and a long hole is formed in this hole or the like. The rebar 24a may be fitted and fixed. Alternatively, a built-in reinforcing bar may be protruded from the side surface of the PC bottom 30 and the protruding portion of the reinforcing bar may be connected to the long bar 24a with a wire or the like.
【００２７】次に、ＰＣ布基礎１０をＰＣ底盤３０間に
架設する。このとき、前述したように、既にＰＣ底盤３
０は所定の高さで水平に設置されているので、ＰＣ布基
礎１０は、ただＰＣ底盤３０間に掛け渡して設置するだ
けで所定の高さで水平になる。したがって、ＰＣ底盤３
０の上面にＰＣ布基礎１０の設置位置の墨出しを行い、
設置位置だけを確認しながら載置するだけでこのＰＣ布
基礎１０の設置作業は完了する。Next, the PC fabric base 10 is installed between the PC bottom boards 30. At this time, as described above, the PC bottom plate 3
Since 0 is set horizontally at a predetermined height, the PC cloth base 10 is leveled at a predetermined height simply by being installed between the PC bottom boards 30. Therefore, PC bottom board 3
Ink marking of the installation position of the PC cloth foundation 10 on the upper surface of
The installation work of the PC cloth base 10 is completed only by placing the PC cloth while checking the installation position.
【００２８】そして、既設のＰＣ布基礎１０に隣接させ
て次設のＰＣ布基礎１０を設置し、両者を図示しない治
具にて仮固定する。この隣接するＰＣ布基礎１０、１０
の拡大斜視図を図３に示す。同図において、ＰＣ布基礎
１０、１０は、接続部１２を対向させて連設されるの
で、接続部１２、１２によって溝４０が形成される。そ
して、この溝４０の中に補強用鉄筋１１０を挿入する。
補強用鉄筋１１０は、図３に示すように、端部が屈曲し
た２本の横材と真っ直ぐな２本の縦材とが直角に組まれ
て固定されたものである。この補強用鉄筋１１０は、溝
４０内に挿入するだけであり、固定する作業は行わな
い。Then, the next PC cloth foundation 10 is installed adjacent to the existing PC cloth foundation 10, and both are temporarily fixed by a jig (not shown). This adjacent PC cloth foundation 10, 10
3 is an enlarged perspective view of FIG. In the figure, since the PC cloth foundations 10 and 10 are continuously provided with the connecting portions 12 facing each other, a groove 40 is formed by the connecting portions 12 and 12. Then, the reinforcing steel bar 110 is inserted into the groove 40.
As shown in FIG. 3, the reinforcing reinforcing bar 110 is formed by assembling two cross members having bent ends and two straight members at right angles. The reinforcing bar 110 is only inserted into the groove 40, and the fixing operation is not performed.
【００２９】次に、こうして内部に補強用鉄筋１１０が
挿入された溝４０にコンクリートを打設する。そうする
と、接続部１２の内側に形成された固定用凹部１７（図
２参照）にコンクリートが流入して、上記溝４０がコン
クリートにて埋められる。Next, concrete is poured into the groove 40 into which the reinforcing steel bar 110 is inserted. Then, concrete flows into the fixing concave portion 17 (see FIG. 2) formed inside the connection portion 12, and the groove 40 is filled with concrete.
【００３０】そして、コンクリートを養生すると、この
コンクリートは固定用凹部１７にくいこんだ状態で固化
することとなるので、ＰＣ布基礎１０、１０の連結部に
おける剪断力に対して大きな強度を有し、ＰＣ布基礎１
０、１０はしっかりと連結される。このことから、前述
したように、補強用鉄筋１１０は溝４０内で固定されな
くてもＰＣ布基礎１０同士をしっかりと連結できること
となる。When the concrete is cured, the concrete hardens in a hardened state in the fixing recess 17, so that the concrete has a large strength against the shearing force at the connecting portion of the PC cloth foundations 10, 10. PC cloth foundation 1
0 and 10 are tightly connected. From this, as described above, the reinforcing reinforcing bar 110 can firmly connect the PC cloth foundations 10 without being fixed in the groove 40.
【００３１】次に、このＰＣ布基礎１０の下部にコンク
リートを打設してフーティングを形成し、連結部におけ
る上記仮結合のための治具を取り外して建物の基礎が構
築される。Next, concrete is cast on the lower part of the PC cloth foundation 10 to form footing, and the jig for the temporary connection at the connecting portion is removed to construct the foundation of the building.
【００３２】なお、本発明は、上記実施例に限定される
ものではなく、発明の要旨の範囲内で種々の変形が可能
である。例えば、上記実施例では、厚肉部１３の端面に
固定用凹部１７を形成したが、かかる構成に限定される
ものではなく、接続片１５の内側面に固定用凹部１７を
形成しても良い。その場合、接続部１２にて形成される
溝４０内に打設されたコンクリートが固化すると、ＰＣ
布基礎１０、１０の連結部において、剪断力のみなら
ず、横方向への引っ張り力に対しても大きな強度を有す
る基礎構造となる。The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the invention. For example, in the above-described embodiment, the fixing recess 17 is formed on the end surface of the thick portion 13. However, the present invention is not limited to this configuration, and the fixing recess 17 may be formed on the inner surface of the connection piece 15. . In this case, when the concrete poured into the groove 40 formed by the connecting portion 12 solidifies, the PC
At the connecting portion of the fabric foundations 10, 10, the foundation structure has a large strength not only against the shearing force but also against the pulling force in the lateral direction.
【００３３】また、固定用凹部１７の形状は、上記実施
例のような矩形のものに限定されず、円形等のいかなる
形状であっても良い。The shape of the fixing recess 17 is not limited to a rectangular shape as in the above embodiment, but may be any shape such as a circle.
【００３４】[0034]
【発明の効果】以上説明したように、本発明によれば、
ＰＣ基礎を連設して接続部にコンクリートを打設したと
きに、接続部の内側奥壁面及び接続片の各対向面に形成
した固定用凹部にコンクリートが流入し、固定用凹部に
くいこんでしっかりと固化し、隣接するＰＣ基礎同士が
しっかりと固定されて対剪断力が向上するという効果が
ある。また、接続片の各対向面に形成した固定用凹部に
よって、剪断力のみならず、横方向への引っ張り力に対
して大きな強度を持たせることができるという効果があ
る。 さらに、接続部は他の部分よりも厚肉にされている
ため、接続片の内側に固定用凹部を設けても接続片内の
配筋から固定用凹部までの肉厚を確保することができ、
ＰＣ基礎の成形性を良好にすることができるという効果
がある。 As described above, according to the present invention,
When concrete is poured into the connection part by connecting PC foundations continuously, it is formed on the inner back wall of the connection part and on each facing surface of the connection piece
Concrete flows into the fixing recesses, rigidly solidified bite into the fixing recesses, versus shear force is firmly fixed adjacent PC underlying each other has the effect of improving. Also, in the fixing recesses formed on each opposing surface of the connection piece,
Therefore, not only the shear force but also the tensile force in the lateral direction are affected.
Has the effect of being able to have a large strength
You. In addition, the connection is thicker than the other parts
Therefore, even if a fixing recess is provided inside the connection piece,
It is possible to secure the thickness from the reinforcement to the fixing recess,
The effect that the moldability of PC foundation can be improved.
There is.
【００３５】特に、請求項３記載の発明によれば、補強
用鉄筋を結び付ける作業を省略できるという効果があ
る。In particular, according to the third aspect of the present invention, there is an effect that the operation of connecting the reinforcing steel bars can be omitted.
【図１】本発明の実施例に係る基礎構造の全体斜視図で
ある。FIG. 1 is an overall perspective view of a basic structure according to an embodiment of the present invention.
【図２】ＰＣ布基礎の接続部の一部を仮想線で描きその
内側面を示す斜視図である。FIG. 2 is a perspective view showing a part of a connecting portion of the PC cloth base with a virtual line and showing an inner surface thereof.
【図３】ＰＣ布基礎の接続部により形成された溝に、補
強用鉄筋を挿入する状態を示す斜視図である。FIG. 3 is a perspective view showing a state in which a reinforcing reinforcing bar is inserted into a groove formed by a connection portion of a PC cloth foundation.
【図４】従来のＰＣ基礎同士を連結するときの状態を示
す斜視図である。FIG. 4 is a perspective view showing a state in which conventional PC bases are connected to each other.
１０ ＰＣ布基礎 １２ 接続部 １６ 立上り部 １７ 固定用凹部 ２２ 捨てコンクリート ３０ ＰＣ底盤 １１０ 補強用鉄筋 DESCRIPTION OF SYMBOLS 10 PC cloth foundation 12 Connection part 16 Rise part 17 Fixing recess 22 Discarded concrete 30 PC bottom 110 Reinforcing steel
Claims (3)
互に突き合わせ、このプレキャストコンクリート基礎同
士の突き合わせ部に形成されるコンクリート充填空間に
コンクリートを打設して一体化される住宅の基礎構造で
あって、 前記コンクリート充填空間に面する少なくとも一方のプ
レキャストコンクリート基礎の前記突き合わせ部には、
所定の間隔を置いて対向する２枚の接続片を有し、他の
部分よりも厚肉にされた横断面ほぼコ字状の接続部が形
成され、前記接続部の内側奥壁面及び前記接続片の各対
向面に打設コンクリートによる固定用凹部が形成される
ことを特徴とする基礎構造。1. A foundation structure for a house in which precast concrete foundations are butted against each other, and concrete is poured into a concrete filling space formed at a joint between the precast concrete foundations and integrated therewith. In the butted portion of at least one precast concrete foundation facing the filling space,
It has two connecting pieces facing each other at a predetermined interval,
The cross-section has a generally U-shaped connection that is thicker than the part
Each pair of the inner back wall surface of the connection portion and the connection piece
Substructure, characterized in that the fixing recesses by pouring concrete are made form the facing surfaces.
支持する立上り部と、この立上り部の側端部に所定の間
隔を置いて対向する２枚の接続片を有し、他の部分より
も厚肉にされた横断面ほぼコ字状の接続部と、前記接続
部の内側奥壁面及び前記接続片の各対向面に形成される
固定用凹部と、を含み、 前記固定用凹部は、対向して連設させた前記接続部間に
打設されたコンクリートが流入して強固に連結可能に形
成されることを特徴とするプレキャストコンクリート基
礎。2. An upright portion formed in a plate shape for mounting and supporting a building structure, and a side end of the upright portion having a predetermined interval.
It has two connecting pieces facing each other at a distance from each other,
The connection part having a substantially U-shaped cross section, which is also thickened, and the connection part
Formed on the inner rear wall surface of the portion and on each opposing surface of the connection piece
Wherein the solid and titration, recess, wherein the fixing recess is precast, characterized in that Da設been concrete is firmly connectable formed and flows between the connecting portion is continuously provided to face Concrete foundation.
ト基礎を、前記接続部を対向させて連設し、この接続部
の内側に補強用鉄筋を挿入してコンクリートを打設し、
前記固定用凹部にコンクリートをくいこませた状態で固
化して、隣接する前記プレキャストコンクリート基礎同
士を強固に連結したことを特徴とする基礎構造。3. The precast concrete foundation according to claim 2, wherein said connecting portions are opposed to each other, said reinforcing portions are inserted inside said connecting portions, and concrete is poured in.
A foundation structure characterized in that concrete is solidified in a state in which the fixing recess is filled, and adjacent precast concrete foundations are firmly connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251064A JP3023266B2 (en) | 1993-09-13 | 1993-09-13 | Precast concrete foundation and foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251064A JP3023266B2 (en) | 1993-09-13 | 1993-09-13 | Precast concrete foundation and foundation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0782754A JPH0782754A (en) | 1995-03-28 |
| JP3023266B2 true JP3023266B2 (en) | 2000-03-21 |
Family
ID=17217096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5251064A Expired - Fee Related JP3023266B2 (en) | 1993-09-13 | 1993-09-13 | Precast concrete foundation and foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3023266B2 (en) |
-
1993
- 1993-09-13 JP JP5251064A patent/JP3023266B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0782754A (en) | 1995-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7112635B1 (en) | U-shaped throwaway formwork for rising foundations of buildings | |
| JP3023266B2 (en) | Precast concrete foundation and foundation structure | |
| JP3191951B2 (en) | Foundation construction method | |
| JPH08177059A (en) | Footing block, and integrated method for constructing continuous footing employing footing block | |
| JP2785063B2 (en) | Joint construction method for all PC foundations | |
| JPH04111813A (en) | Retaining wall structure and its construction | |
| JP3563128B2 (en) | Precast concrete foundation structure, precast concrete foundation and foundation construction method | |
| JP3408629B2 (en) | Precast concrete foundation structure | |
| JP2988814B2 (en) | Precast concrete foundation structure | |
| JP2905056B2 (en) | Foundation structure | |
| JP2963613B2 (en) | Foundation structure and construction method | |
| JPH10299003A (en) | Foundation work using precast concrete member | |
| JP3108112B2 (en) | Foundation structure | |
| JP3143324B2 (en) | Foundation structure and foundation construction method | |
| JP3683956B2 (en) | Precast concrete foundation member and its connecting structure, and precast concrete foundation member manufacturing formwork | |
| JP3602170B2 (en) | Precast concrete connecting members | |
| JPH01111923A (en) | Construction of concrete foundation | |
| JPH0782755A (en) | Foundation structure and constructing method for foundation | |
| JP3086384B2 (en) | Foundation structure and foundation construction method | |
| JP2520364B2 (en) | Construction method of underground structure | |
| JP2966709B2 (en) | Precast concrete foundation structure | |
| JP3061724U (en) | Foundation blocks and building foundations | |
| JP3609451B2 (en) | Precast concrete foundation structure | |
| JPH0612010B2 (en) | Construction method of housing foundation structure | |
| JP2824374B2 (en) | Concrete block for foundation, manufacturing method thereof, and foundation construction method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19990706 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000104 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100114 Year of fee payment: 10 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100114 Year of fee payment: 10 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110114 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110114 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120114 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130114 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |