JP2003184104A - Precast concrete footing block and its connection method - Google Patents
Precast concrete footing block and its connection methodInfo
- Publication number
- JP2003184104A JP2003184104A JP2001386318A JP2001386318A JP2003184104A JP 2003184104 A JP2003184104 A JP 2003184104A JP 2001386318 A JP2001386318 A JP 2001386318A JP 2001386318 A JP2001386318 A JP 2001386318A JP 2003184104 A JP2003184104 A JP 2003184104A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- precast concrete
- vertical groove
- bar
- end surface
- 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.)
- Granted
Links
Landscapes
- Foundations (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はプレキャストコンク
リート基礎ブロック、更に詳しくは、建築物等の土台を
受ける基礎を構築するためのプレキャストコンクリート
基礎ブロック及びその連結方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete foundation block, and more particularly to a precast concrete foundation block for constructing a foundation for receiving the foundation of a building or the like and a method for connecting the same.
【０００２】[0002]
【従来の技術】従来、プレキャストコンクリート製品で
ある基礎ブロックを使用して一体の基礎を構築する場
合、内部に埋設した鉄筋の端部を基礎ブロックの接合部
端面から突出させ、接合する基礎ブロック同士の接合部
端面から突出した前記鉄筋を重ねて溶接する方法や、基
礎ブロックの端部にアンカーを埋設し、該アンカーに螺
合したボルトを締め付けで取付けた連結プレートを介し
て接合する基礎ブロック同士を連結する方法、或いは、
基礎ブロックの接合部にフロントアンカー支柱を打ち込
み、該フロントアンカー支柱の内部に連結金具を落とし
込んで連結する方法等で行っていた。2. Description of the Related Art Conventionally, in the case of constructing an integral foundation using a foundation block which is a precast concrete product, the foundation blocks which are joined by projecting the end of the reinforcing bar embedded inside from the end face of the joint of the foundation block. Method of stacking and welding the reinforcing bars projecting from the end face of the joint part of the base block, or anchor blocks embedded in the end part of the base block, and the base blocks are joined together via a connecting plate attached by tightening bolts screwed to the anchor Method of connecting
This has been done by, for example, driving a front anchor strut into the joint portion of the basic block and dropping a connecting metal fitting inside the front anchor strut for connection.
【０００３】[0003]
【発明が解決しようとする課題】しかし、基礎ブロック
の接合部端面から突出する鉄筋同士を現場で溶接する方
法は、接合する両基礎ブロックの前記鉄筋を互いに近接
させなければならず、基礎ブロックの位置決めに熟練を
要するといった問題点がある。また、連結プレート又は
連結金具を介して連結する方法は、該連結プレート又は
連結金具と基礎ブロックに埋設したアンカーの位置を現
場において一致させることは困難であるとゝもに、金具
の制作費も高価であるといった問題点があった。However, in the method of welding the reinforcing bars projecting from the end face of the joint portion of the basic block on site, the reinforcing bars of both basic blocks to be joined must be close to each other, and There is a problem that positioning requires skill. Further, in the method of connecting via the connecting plate or the connecting metal fitting, it is difficult to match the position of the connecting plate or the connecting metal fitting and the anchor embedded in the foundation block on site, and the manufacturing cost of the metal fitting is also high. There was a problem that it was expensive.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記のような
従来の問題点を解決した基礎ブロック及びその連結方法
を提供することを目的としたものであり、その要旨は、
垂直に立設した起立部と、該起立部の下端に一体に形成
した水平なフーチング部とからなる縦断面がほゞ倒立Ｔ
字型の基礎ブロック本体と、前記起立部の幅方向中央に
全長にわたって形成した縦溝部とからなり、前記基礎ブ
ロック本体の接合部端面に開口する前記縦溝部の深さが
前記起立部の上端面から前記フーチング部の内部まで延
びる構成としたことを特徴とするプレキャストコンクリ
ート基礎ブロック等にある。SUMMARY OF THE INVENTION The present invention is intended to provide a basic block and a method of connecting the basic block which solve the above-mentioned conventional problems, and the gist thereof is as follows.
A vertical cross section consisting of a vertically standing upright portion and a horizontal footing portion integrally formed at the lower end of the upright portion is almost inverted T.
It is composed of a V-shaped basic block body and a vertical groove portion formed over the entire length in the widthwise center of the rising portion, and the depth of the vertical groove portion opening to the end face of the joint portion of the basic block body is the upper end surface of the rising portion. To the inside of the footing portion, the precast concrete foundation block and the like.
【０００５】[0005]
【発明の実施の形態】以下、本発明を図面に示す実施形
態により詳細に説明する。図１乃至図４に示すものは本
発明に係る基礎ブロックの一実施形態で、予め工場生産
したプレキャストコンクリート製品であり、図中、
Ａ１，Ｂ１，Ｃ１及びＤ１はそれぞれ、平面視がＩ字
型，Ｌ字型，Ｔ字型及び十字型の基礎ブロックである。
これらの基礎ブロックＡ１〜Ｄ１はいづれも、垂直に立
設した起立部１と、該起立部１の下端に一体に形成した
水平なフーチング部２とからなる縦断面がほゞ倒立Ｔ字
型のブロックであり、該ブロックの内部には補強鉄筋
（図示せず）が埋設されている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 to 4 show an embodiment of a base block according to the present invention, which is a precast concrete product produced in advance in a factory.
A 1 , B 1 , C 1 and D 1 are basic blocks of I-shaped, L-shaped, T-shaped and cross-shaped in plan view, respectively.
Each of these basic blocks A 1 to D 1 has a vertical T-shaped vertical cross section that is composed of a vertically standing upright portion 1 and a horizontal footing portion 2 integrally formed at the lower end of the upright portion 1. It is a block of a mold, and a reinforcing bar (not shown) is embedded inside the block.
【０００６】３は前記起立部１の幅方向中央に形成した
縦溝部で、前記起立部１の全長にわたって形成されてお
り、該起立部１と平面視が同一形状のＩ字型，Ｌ字型，
Ｔ字型及び十字型にそれぞれ形成された前記縦溝部３の
上方及び側方は、前記起立部１の上端面１ａ及び側端面
１ｂにそれぞれ開口しているとゝもに、前記縦溝部３の
下端３ａは前記フーチング部２の内部の補強鉄筋上部ま
で延びている。すなわち、前記縦溝部３の深さ（Ｈ）
は、前記起立部１の上端面１ａからフーチング部２の内
部の下端３ａまでの長さとしている。Reference numeral 3 denotes a vertical groove portion formed in the center of the standing portion 1 in the width direction, which is formed over the entire length of the standing portion 1 and has an I-shape or L-shape having the same shape in plan view as the rising portion 1. ，
The upper and lateral sides of the vertical groove portion 3 formed in the T-shape and the cross shape are opened to the upper end surface 1a and the side end surface 1b of the upright portion 1, respectively. The lower end 3a extends to the upper portion of the reinforcing bar inside the footing portion 2. That is, the depth (H) of the vertical groove portion 3
Is the length from the upper end surface 1a of the rising portion 1 to the lower end 3a inside the footing portion 2.
【０００７】図５乃至図８に示すものはそれぞれ基礎ブ
ロックの他の実施形態で、同図において、Ａ２，Ｂ２，
Ｃ２及びＤ２はそれぞれ前記基礎ブロックＡ１，Ｂ１，
Ｃ１及びＤ１と対応する実施形態のものである。これら
の基礎ブロックＡ２，Ｂ２，Ｃ２及びＤ２と前記基礎ブ
ロックＡ１，Ｂ１，Ｃ１及びＤ１とは基本的に同一構造
のものであり、前記縦溝部３Ａが起立部１の全長にわた
って形成されていない点において相違するのみである。FIGS. 5 to 8 are other embodiments of the basic blocks, and in FIG. 5, A 2 , B 2 ,
C 2 and D 2 are the basic blocks A 1 , B 1 ,
It is of an embodiment corresponding to C 1 and D 1 . The basic blocks A 2 , B 2 , C 2 and D 2 and the basic blocks A 1 , B 1 , C 1 and D 1 have basically the same structure, and the vertical groove portion 3A has the standing portion 1 The only difference is that it is not formed over the entire length of.
【０００８】詳述すると、基礎ブロックＡ２にあって
は、その縦溝部３Ａは前記起立部１の長手方向のほゞ中
央において中実部４で仕切られており、その他の基礎ブ
ロックＢ２，Ｃ２及びＤ２にあっては、コーナー部に設
けた中実部４で仕切られた縦溝部３Ａがそれぞれ形成さ
れている。従って、前記縦溝部３を仕切っている前記中
実部４の縦溝部３方向の長さが長い場合には、図１２に
示す基礎ブロックＡ２ー２のように、前記縦溝部３より
長さが短い縦溝部３Ａが形成された構造、すなわち、基
礎ブロックの接合部のみに縦溝部３Ａを形成した構造の
ものとなる。More specifically, in the basic block A 2 , the vertical groove portion 3 A is partitioned by the solid portion 4 at approximately the center in the longitudinal direction of the standing portion 1, and the other basic blocks B 2 , In C 2 and D 2 , vertical groove portions 3A partitioned by the solid portions 4 provided at the corners are formed, respectively. Therefore, when the vertical groove 3 direction of the length of the solid portion 4 and partitions the longitudinal groove 3 is long, as the base block A 2 - 2 shown in FIG. 12, the length from the longitudinal groove 3 Is a structure in which the vertical groove portion 3A is formed, that is, a structure in which the vertical groove portion 3A is formed only in the joint portion of the basic block.
【０００９】図９乃至図１１に示すものは、前記基礎ブ
ロックＡ〜Ｄを連結する際に使用するジョイント筋の実
施形態であり、図９（イ）は主筋５ａとせん断筋５ｂと
を溶接等によって形成した格子状のジョイント筋５、図
１０（イ）は主筋６ａとせん断筋６ｂとを溶接等によっ
て格子状に形成するとゝもに、上下に位置する主筋６
ａ，６ａの両端部をそれぞれ内側方向に直角に折り曲げ
てフック部６ｃ，６ｃを形成したジョイント筋６であ
り、更に、図１１に示すものは、各２本の鉄筋からなる
主筋７ａを所定の間隔をおいて平行に三段配設するとゝ
もに、該主筋７ａ間に巻き回したせん断筋７ｂを前記主
筋７ａに溶接等によって一体に成形した構造のジョイン
ト筋７である。9 to 11 show an embodiment of a joint bar used when connecting the basic blocks A to D, and FIG. 9 (a) shows a main bar 5a and a shear bar 5b welded together. The grid-shaped joint bar 5 formed by Fig. 10 (a) shows that when the main bar 6a and the shear bar 6b are formed in a grid by welding or the like, the main bar 6 located above and below
A joint bar 6 is formed by bending both ends of a and 6a inwardly at right angles to form hook parts 6c and 6c. Further, what is shown in FIG. 11 is a main bar 7a composed of two reinforcing bars. It is a joint bar 7 having a structure in which shear bars 7b wound between the main bars 7a are formed integrally with the main bars 7a by welding or the like when they are arranged in parallel at three intervals.
【００１０】ここで、図１０に示すフック部６ｃを形成
した前記ジョイント筋６を使用した場合、図９に示すフ
ック部のないジョイント筋５を使用する場合よりも前記
縦溝部３Ａの長さ（Ｌ）を約２／３倍まで縮小すること
ができる。例えば、各基礎ブロックＡ１〜Ｄ１の縦溝部
３Ａの長さ（Ｌ）を一定の長さにしなければならない場
合、上部荷重の大小でジョイント筋の鉄筋径を変える必
要が生じるが、太径の鉄筋を使用したジョイント筋の端
部にフック部を形成するすることによりジョイント筋の
長さを短くすることができるので、基礎ブロックに設け
る縦溝部３Ａの長さ（Ｌ）を上部荷重にあわせて変化さ
せずに、同一長さの縦溝部３Ａをそれぞれ備えた基礎ブ
ロックを使用することができる。Here, when the joint streak 6 having the hook portion 6c shown in FIG. 10 is used, the length of the vertical groove portion 3A is larger than that when the joint streak 5 having no hook portion shown in FIG. 9 is used. L) can be reduced to about 2/3 times. For example, when the length (L) of the vertical groove portion 3A of each of the basic blocks A 1 to D 1 has to be set to a constant length, it is necessary to change the diameter of the reinforcing bar of the joint bar depending on the magnitude of the upper load. Since the length of the joint bar can be shortened by forming the hook part at the end of the joint bar using the rebar, the length (L) of the vertical groove 3A provided on the base block is adjusted to the upper load. It is possible to use a basic block which is provided with the vertical groove portions 3A having the same length without being changed.
【００１１】また、前記縦溝部３Ａの長さ（Ｌ）は、前
記基礎ブロックＡ１〜Ｄ１の連結時に使用するジョイン
ト筋５〜７を構成する主筋５ａ〜７ａやせん断筋５ｂ〜
７ｂの鉄筋径の２０〜４０倍とする。これは、鉄筋コン
クリート構造計算基準で規定された必要付着長さ１db＝
σｔＡｓ／Ｋｆｂψ（σｔ：付着検定断面位置における
短期、長期荷重時の鉄筋存在応力度、Ａｓ：当該鉄筋の
断面積、ψ：当該鉄筋の周長、ｆｂ：許容付着応力度、
Ｋ：鉄筋配置と横補強筋により修正係数）により重ね継
手長さが決定されるが、この計算により、縦溝部３Ａの
長さ（Ｌ）が鉄筋径の２０倍以上となるからである。Further, the length of the longitudinal groove 3A (L) is the main reinforcement 5a~7a and shearing muscle 5b~ constituting the joint muscles 5-7 for use in consolidation of the foundation blocks A 1 to D 1
It is 20 to 40 times the diameter of the reinforcing bar of 7b. This is the required bond length defined by the calculation standard for reinforced concrete structures 1 db =
σ t A s / Kf b ψ (σ t: Short-term in adhesion assay sectional position, reinforcing bars presence Stress during long load, A s: cross-sectional area of the reinforcing bars, [psi: circumferential length of the rebar, f b: acceptable adhesion Stress level,
This is because the lap joint length is determined by the correction coefficient (K: rebar arrangement and lateral reinforcing bar), and the length (L) of the vertical groove portion 3A is 20 times or more the rebar diameter by this calculation.
【００１２】次に、本発明に係る基礎ブロックの連結方
法を、前記図５乃至図８に示す実施形態の基礎ブロック
Ａ２〜Ｄ２を組み合わせ、互いに隣接する基礎ブロック
Ａ２〜Ｄ２を前記ジョイント筋６を介して連結し、一体
とした建築物等の基礎を構築する場合について、図１２
により説明する。まず、地盤を掘削した後、該掘削溝内
に投入した割栗石を転圧して水平な床Ｇを形成する。そ
して、該床Ｇの上に、接合する側端面１ｂ同士を突き合
わせながら前記基礎ブロックＡ２〜Ｄ２を設計通りに敷
設していく。[0012] Next, a connection method of the basic block according to the present invention, the combination of FIG. 5 to the base block A 2 to D 2 of the embodiment shown in FIG. 8, the basic blocks A 2 to D 2 adjacent to each other FIG. 12 shows a case where a foundation such as an integrated building is constructed by connecting the joint muscles 6 to each other.
Will be described. First, after excavating the ground, the split stones put in the excavation groove are compacted to form a horizontal floor G. Then, on the floor G, gradually laid as designed the base block A 2 to D 2 while abutting with each other side end face 1b to be joined.
【００１３】基礎ブロックＡ２〜Ｄ２を上記のようにし
て敷設した後、各基礎ブロックに形成した前記縦溝部３
Ａの接合部端面１ｂ，１ｂをそれぞれ突き合わせ、該接
合部端面１ｂにそれぞれ開口する縦溝部３Ａの開口部を
接合させることにより形成された空間部Ｓ内に、起立部
１の上端面１ａ側の開口部から前記ジョイント筋６を挿
入する。ここで、図９及び図１０に示すジョイント筋
５，６にあっては、同図の（ロ）に示すように、各ジョ
イント筋５，６をそれぞれ２枚重ね合わせて、又図１１
に示すジョイント筋７にあっては１枚をそれぞれ使用す
るが、各ジョイント筋５〜７は前記空間部Ｓ内で自立す
るので予め空間部内にスペーサーを取り付ける必要がな
い。After laying the basic blocks A 2 to D 2 as described above, the vertical groove portion 3 formed in each basic block
The joint end faces 1b and 1b of A are abutted against each other, and the space S formed by joining the openings of the vertical groove portions 3A opening to the joint end face 1b is formed on the upper end face 1a side of the upright portion 1. The joint muscle 6 is inserted through the opening. Here, in the joint muscles 5 and 6 shown in FIGS. 9 and 10, two joint muscles 5 and 6 are superposed on each other as shown in FIG.
For the joint streak 7 shown in (1), one sheet is used, but since each joint streak 5 to 7 is self-supporting in the space S, it is not necessary to previously attach a spacer in the space.
【００１４】次に、図１３に示すように、前記ジョイン
ト筋６を挿入した空間部Ｓ内にコンクリートＫを打設
し、隣接する各基礎ブロックＡ２〜Ｄ２同士をそれぞれ
一体に接続することによって全体が一体に連結された基
礎が形成されるが、各基礎ブロックＡ２〜Ｄ２内の補強
鉄筋と前記空間部Ｓ内に設置されたジョイント筋６とが
重なり合い、各基礎ブロックＡ２〜Ｄ２の連結部におけ
る曲げ強度及びせん断力が飛躍的に向上する。Next, as shown in FIG. 13, concrete K is placed in the space S in which the joint streak 6 is inserted, and adjacent base blocks A 2 to D 2 are integrally connected to each other. By the above, the whole is integrally connected to form a foundation, but the reinforcing bars in each of the basic blocks A 2 to D 2 and the joint bars 6 installed in the space S overlap each other, and each of the basic blocks A 2 to. The bending strength and shearing force at the connecting portion of D 2 are dramatically improved.
【００１５】また、前記ジョイント筋６の下端は、前記
縦溝部３Ａ内にあってフーチング部２の内部まで延びる
縦溝部３Ａの下端３ａに位置するので、各基礎ブロック
Ａ２〜Ｄ２は起立部１だけの連結ではなくフーチング部
２も一体に連結されることになり、フーチング部２の連
結作業が不要になる。なお、図１４（イ）〜（ハ）に示
すように、前記縦溝部３，３Ａの内壁面に凹凸部８ａ〜
８ｃを形成し、前記空間部Ｓ内に打設するコンクリート
Ｋとの付着性を向上させることができる。Further, since the lower end of the joint streak 6 is located at the lower end 3a of the vertical groove portion 3A which extends into the footing portion 2 within the vertical groove portion 3A, each of the basic blocks A 2 to D 2 is raised. Since the footing portion 2 is integrally connected instead of connecting only one, the work of connecting the footing portion 2 becomes unnecessary. As shown in FIGS. 14 (a) to 14 (c), the concave-convex portions 8a to 8a are formed on the inner wall surfaces of the vertical groove portions 3 and 3A.
8c can be formed, and the adhesiveness with the concrete K poured in the space S can be improved.
【００１６】以上は、接合端面部１ｂに縦溝部３Ａを形
成した実施形態の基礎ブロックＡ２〜Ｄ２を組み合わせ
て連結することにより基礎を構築する場合について説明
したが、図１乃至図４に示すような、起立部１の全長に
わたって縦溝部３を形成した実施形態の基礎ブロックＡ
１〜Ｄ１を組み合わせることにより基礎を構築する場合
には、基礎ブロックＡ１〜Ｄ１の接合部にジョイント筋
５〜７を設置し、連続する縦溝部３内にコンクリートＫ
を打設することによって全体が一体に連結された基礎が
形成されることになり、連結部における曲げ強度及びせ
ん断力が向上することは前記の場合と同じである。The case where the foundation is constructed by combining and connecting the basic blocks A 2 to D 2 of the embodiment in which the vertical groove portion 3A is formed in the joint end surface portion 1b has been described above. As shown, the basic block A of the embodiment in which the flutes 3 are formed over the entire length of the upright portion 1.
When constructing a foundation by combining 1 to D 1 , joint bars 5 to 7 are installed at the joints of the foundation blocks A 1 to D 1 and the concrete K is placed in the continuous longitudinal groove portion 3.
It is the same as the above case that the foundation that is integrally connected to the whole is formed by driving, and the bending strength and the shearing force at the connecting portion are improved.
【００１７】[0017]
【発明の効果】本発明は上述のような構成であるから、
次のような効果を奏する。（１）各基礎ブロック同士の
連結は、接合部に形成された空間部にジョイント筋を挿
入し、コンクリート又はモルタルを打設することにより
施工するので、継手金具を使用する場合に比べて細やか
な位置決めの必要がない。（２）ジョイント筋は縦溝部
内にあってその下端上面に自立するので、予めスペーサ
ーを空間内部に設置しておく必要が無い。（３）前記空
間部は起立部からフーチング部まで達しているので、起
立部とフーチング部それぞれの接続作業が一回で済み、
作業が軽減され工期の短縮が可能となる。（４）ジョイ
ント筋は主筋とせん断筋により構成されているので、基
礎ブロック内の配筋と重なり合い、従来の突出した鉄筋
を溶接する方法や連結金具を介して接続する方法より、
連結部における曲げ強度およびせん断力が向上する。
（５）本発明に係る基礎ブロックの形状は単純な構造で
あるため、製造が容易である。Since the present invention has the above-mentioned structure,
It has the following effects. (1) The connection of each basic block is done by inserting the joint streak into the space formed in the joint and placing concrete or mortar, so it is more detailed than when using joint fittings. No need for positioning. (2) Since the joint streak is in the vertical groove and self-supporting on the upper surface of the lower end thereof, it is not necessary to previously install the spacer inside the space. (3) Since the space portion reaches from the standing portion to the footing portion, it is only necessary to connect the standing portion and the footing portion once.
The work is reduced and the construction period can be shortened. (4) Since the joint bar is composed of the main bar and the shear bar, it overlaps with the bar arrangement in the basic block, and the conventional method of welding protruding reinforcing bars or connecting them via connecting fittings
Bending strength and shearing force at the connecting portion are improved.
(5) Since the basic block according to the present invention has a simple structure, it is easy to manufacture.
【図１】本発明に係る平面視Ｉ字型基礎ブロックの斜視
図である。FIG. 1 is a perspective view of an I-shaped basic block in plan view according to the present invention.
【図２】同平面視Ｌ字型基礎ブロックの斜視図である。FIG. 2 is a perspective view of an L-shaped base block in plan view.
【図３】同平面視Ｔ字型基礎ブロックの斜視図である。FIG. 3 is a perspective view of the T-shaped basic block in plan view.
【図４】同平面視十字型基礎ブロックの斜視図である。FIG. 4 is a perspective view of the cross-shaped basic block in plan view.
【図５】同平面視Ｉ字型基礎ブロックの他実施形態の斜
視図である。FIG. 5 is a perspective view of another embodiment of the I-shaped basic block in plan view.
【図６】同平面視Ｌ字型基礎ブロックの他実施形態の斜
視図である。FIG. 6 is a perspective view of another embodiment of the L-shaped basic block in plan view.
【図７】同平面視Ｔ字型基礎ブロックの他実施形態の斜
視図である。FIG. 7 is a perspective view of another embodiment of the T-shaped base block in plan view.
【図８】同平面視十字型基礎ブロックの他実施形態の斜
視図である。FIG. 8 is a perspective view of another embodiment of the cross-shaped basic block in plan view.
【図９】本発明で使用するジョイント筋の斜視図（イ）
と二枚一組とした使用状態の斜視図（ロ）である。FIG. 9 is a perspective view of the joint muscle used in the present invention (a).
And (b) is a perspective view (b) in a use state in which two sets are used.
【図１０】同ジョイント筋の他実施形態の斜視図（イ）
と二枚一組とした使用状態の斜視図（ロ）である。FIG. 10 is a perspective view of another embodiment of the joint muscle (a).
And (b) is a perspective view (b) in a use state in which two sets are used.
【図１１】同ジョイント筋の更に他の実施形態の斜視図
である。FIG. 11 is a perspective view of still another embodiment of the joint muscle.
【図１２】同基礎ブロックの敷設状態を示す説明斜視図
である。FIG. 12 is an explanatory perspective view showing a laid state of the basic block.
【図１３】同基礎ブロックの連結部の縦断面拡大図であ
る。FIG. 13 is an enlarged vertical cross-sectional view of a connecting portion of the basic block.
【図１４】同基礎ブロックにおける縦溝部の内壁面の異
なる実施形態を示す一部切欠部分斜視図である。FIG. 14 is a partial cutaway perspective view showing a different embodiment of the inner wall surface of the vertical groove portion in the basic block.
Ａ１，Ａ２ 平面視Ｉ字型の基礎ブロック Ｂ１，Ｂ２ 平面視Ｌ字型の基礎ブロック Ｃ１，Ｃ２ 平面視Ｔ字型の基礎ブロック Ｄ１，Ｄ２ 平面視十字型の基礎ブロック １ 起立部 １ａ 上端面 １ｂ 接合部端面 ２ フーチング部 ３，３Ａ 縦溝部 ３ａ 下端 ４ 中実部 ５，６，７ ジョイント筋 ５ａ，６ａ，７ａ 主筋 ５ｂ，６ｂ，７ｂ せん断筋 Ｓ 空間部 Ｌ 縦溝部の長さ Ｈ 縦溝部の深さA 1, A 2 I-shaped basic block in plan view B 1, B 2 L-shaped basic block in plan view C 1, C 2 T-shaped basic block in plan view D 1, D 2 C-shaped basic block in plan view Block 1 Standing part 1a Upper end face 1b Joining part end face 2 Footing part 3,3A Vertical groove part 3a Lower end 4 Solid part 5,6,7 Joint bar 5a, 6a, 7a Main bar 5b, 6b, 7b Shear bar S Space part L Vertical Groove length H Depth of vertical groove
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 礼治 宮城県仙台市太白区青山一丁目５−12 (72)発明者 前田 直己 山形県酒田市上本町６番７号 前田製管株 式会社内 (72)発明者 佐原 和男 宮城県仙台市青葉区上杉３−９−４ 前田 コンクリート工業株式会社内 Ｆターム(参考） 2D046 BA26 BA27 BA41 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Reiji Tanaka 5-12 Aoyama 1-chome, Taihaku-ku, Sendai City, Miyagi Prefecture (72) Inventor Naoki Maeda Maeda Pipeline 6-7 Uehonmachi, Sakata City, Yamagata Prefecture Inside the company (72) Inventor Kazuo Sahara Maeda 3-9-4 Uesugi, Aoba-ku, Sendai City, Miyagi Prefecture Concrete Industry Co., Ltd. F-term (reference) 2D046 BA26 BA27 BA41
Claims (7)
端に一体に形成した水平なフーチング部とからなる縦断
面がほゞ倒立Ｔ字型の基礎ブロック本体と、前記起立部
の幅方向中央に全長にわたって形成した縦溝部とからな
り、前記基礎ブロック本体の接合部端面に開口する前記
縦溝部の深さが前記起立部の上端面から前記フーチング
部の内部まで延びる構成としたことを特徴とするプレキ
ャストコンクリート基礎ブロック。1. A base block body having a vertical cross section of a substantially upright T-shape, which comprises a vertically standing upright portion and a horizontal footing portion integrally formed at a lower end of the upright portion, and the upright portion. A vertical groove portion formed over the entire length in the center in the width direction, and the depth of the vertical groove portion opening to the end surface of the joint portion of the base block body extends from the upper end surface of the upright portion to the inside of the footing portion. Precast concrete foundation block featuring.
端に一体に形成した水平なフーチング部とからなる縦断
面がほゞ倒立Ｔ字型の基礎ブロック本体と、該基礎ブロ
ック本体の接合端面部に形成した縦溝部とからなり、接
合部端面に開口する前記縦溝部の深さが前記起立部の上
端面から前記フーチング部の内部まで延びる構成とした
ことを特徴とするプレキャストコンクリート基礎ブロッ
ク。2. A base block body having a vertical T-shaped vertical cross section, which comprises a vertically standing upright portion and a horizontal footing portion integrally formed at a lower end of the upright portion, and the base block body. And a vertical groove portion formed on the joint end surface portion of the precast concrete, characterized in that the depth of the vertical groove portion opening to the joint end surface extends from the upper end surface of the rising portion to the inside of the footing portion. Foundation block.
ら構成されたジョイント筋に使用する鉄筋径の２０〜４
０倍としたことを特徴とする請求項２記載のプレキャス
トコンクリート基礎ブロック。3. The longitudinal groove portion has a length of 20 to 4 which is a diameter of a reinforcing bar used for a joint bar composed of a main bar and a shear bar.
The precast concrete foundation block according to claim 2, wherein the precast concrete foundation block is 0 times.
ことを特徴とする請求項１〜３のいづれか一つに記載の
プレキャストコンクリート基礎ブロック。4. The precast concrete foundation block according to claim 1, wherein an uneven portion is formed on an inner wall surface of the vertical groove portion.
礎ブロックを前記接合部端面を接合して配設するとゝも
に、前記両縦溝部により形成された前記基礎ブロックの
上端面からの底部近傍まで延びる空間部にジョイント筋
を設置し、その後コンクリートを充填して一体の基礎を
構築することを特徴とするプレキャストコンクリート基
礎ブロックの連結方法。5. A base block provided with a vertical groove portion that opens to the end surface of the joint portion is arranged by joining the end surface portions of the joint portion, and the base block formed by the both vertical groove portions from the upper end surface of the base block is formed. A method for connecting precast concrete foundation blocks, characterized in that a joint bar is installed in a space extending to the vicinity of the bottom, and then concrete is filled to construct an integral foundation.
構成する鉄筋で格子状に成形したものであることを特徴
とする請求項５記載のプレキャストコンクリート基礎ブ
ロックの連結方法。6. The method for connecting a precast concrete foundation block according to claim 5, wherein the joint bar is formed of a reinforcing bar forming a main bar and a shear bar in a lattice shape.
なる主筋を所定の間隔をおいて複数段平行に配設すると
ゝもに、該主筋間に巻き回したせん断筋を前記主筋に溶
接するなどして一体に成形したことを特徴とする請求項
５記載のプレキャストコンクリート基礎ブロックの連結
方法。7. The joint rebar is formed by arranging main rebars each consisting of two rebars in parallel at a predetermined interval in a plurality of stages, and the shear rebars wound between the main rebars are welded to the main rebars. The precast concrete foundation block connecting method according to claim 5, wherein the precast concrete foundation blocks are integrally formed by, for example,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001386318A JP3643809B2 (en) | 2001-12-19 | 2001-12-19 | Connection structure of precast concrete foundation blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001386318A JP3643809B2 (en) | 2001-12-19 | 2001-12-19 | Connection structure of precast concrete foundation blocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003184104A true JP2003184104A (en) | 2003-07-03 |
| JP3643809B2 JP3643809B2 (en) | 2005-04-27 |
Family
ID=27595495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001386318A Expired - Lifetime JP3643809B2 (en) | 2001-12-19 | 2001-12-19 | Connection structure of precast concrete foundation blocks |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3643809B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132158A (en) * | 2005-11-14 | 2007-05-31 | Shimizu Corp | Joint structure of column main reinforcement |
| KR101212619B1 (en) | 2011-05-13 | 2012-12-14 | 장광윤 | Cavity box type foundation |
| CN109267568A (en) * | 2018-09-28 | 2019-01-25 | 中铁二院工程集团有限责任公司 | A kind of CFG pile composite foundation structure and construction method |
| CN111255060A (en) * | 2020-03-18 | 2020-06-09 | 常州工程职业技术学院 | Detachable reinforced concrete strip foundation combination system and assembling method |
-
2001
- 2001-12-19 JP JP2001386318A patent/JP3643809B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132158A (en) * | 2005-11-14 | 2007-05-31 | Shimizu Corp | Joint structure of column main reinforcement |
| KR101212619B1 (en) | 2011-05-13 | 2012-12-14 | 장광윤 | Cavity box type foundation |
| CN109267568A (en) * | 2018-09-28 | 2019-01-25 | 中铁二院工程集团有限责任公司 | A kind of CFG pile composite foundation structure and construction method |
| CN111255060A (en) * | 2020-03-18 | 2020-06-09 | 常州工程职业技术学院 | Detachable reinforced concrete strip foundation combination system and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3643809B2 (en) | 2005-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103388357B (en) | Shatter-proof, prefabricated steel tube shear Temperature Variation In Buildings of Mixed Structures thing | |
| KR20130012898A (en) | Joint of steel column | |
| KR101228012B1 (en) | Precast concrete column connecting structure | |
| JP2008223370A (en) | Rigidly connecting structure of corner part | |
| KR101216126B1 (en) | Arch structure construction method using axial and longitudinal connection rebar | |
| US20030033773A1 (en) | Foundation construction | |
| KR101735077B1 (en) | Bridge deck using precast concrete panel | |
| KR101521946B1 (en) | Enlarged capital of steel framed reinforced concrete column | |
| JPH07292783A (en) | Connective structure of prestressed concrete members | |
| KR200469319Y1 (en) | Construction structure for joining steel or reinforced steel concrete column and beam with reinforcing end part | |
| JP2003184104A (en) | Precast concrete footing block and its connection method | |
| KR200383309Y1 (en) | Form system for construction of underground slab | |
| JP6855296B2 (en) | Building foundation structure and its construction method | |
| JP2011089390A (en) | Rigid connection structure of corner section | |
| JP2020063617A (en) | Joint structure of precast concrete members | |
| KR100456192B1 (en) | Composition of precast concrete wall and precast concrete column for outdoor to sustain external force | |
| KR20060023915A (en) | Method for constructing underground slabs and walls using erection piles without preliminary wall-attached supports | |
| KR100694763B1 (en) | Construction methods of underground structure adopting concrete-composite crossbeam | |
| KR20200006427A (en) | Hollow Core Slab Joint Structure Using Reinforcement Member | |
| JPH07292857A (en) | Pc member with irregular-shaped steel pipe for joint, and connecting method thereof | |
| KR101372604B1 (en) | Formless composite column and manufacturing method thereof | |
| KR100694762B1 (en) | Method for constructing underground slabs and walls without preliminary wall-attached supports | |
| JP7409834B2 (en) | Pile cap joint structure and pile cap joint method | |
| JPH11141055A (en) | Method of jointing slab reinforcement and beam main reinforcement to core wall | |
| KR20040095391A (en) | reinforced structure and method combining the head of concrete pile with concrete foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040907 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041104 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050111 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050131 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 3643809 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090204 Year of fee payment: 4 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110204 Year of fee payment: 6 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110204 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120204 Year of fee payment: 7 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120204 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130204 Year of fee payment: 8 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130204 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140204 Year of fee payment: 9 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |