JP2001355246A - Pc(prestressed concrete) footing member and building construction method using it - Google Patents

Pc(prestressed concrete) footing member and building construction method using it

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Publication number
JP2001355246A
JP2001355246A JP2000178738A JP2000178738A JP2001355246A JP 2001355246 A JP2001355246 A JP 2001355246A JP 2000178738 A JP2000178738 A JP 2000178738A JP 2000178738 A JP2000178738 A JP 2000178738A JP 2001355246 A JP2001355246 A JP 2001355246A
Authority
JP
Japan
Prior art keywords
footing
foundation
construction
pile
height
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
Application number
JP2000178738A
Other languages
Japanese (ja)
Other versions
JP4532677B2 (en
Inventor
Kazuhiro Kaneda
Masahiro Takeno
雅博 竹野
和浩 金田
Original Assignee
Taisei Corp
大成建設株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taisei Corp, 大成建設株式会社 filed Critical Taisei Corp
Priority to JP2000178738A priority Critical patent/JP4532677B2/en
Publication of JP2001355246A publication Critical patent/JP2001355246A/en
Application granted granted Critical
Publication of JP4532677B2 publication Critical patent/JP4532677B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a construction member and a building construction method using it capable of starting the upper structure work without waiting the completion of the whole foundation, i.e., capable of progressing the construction of the foundation and the construction of the upper structure in parallel, and to shorten the construction period of a multi-span building in particular. SOLUTION: This building construction method includes a first process for installing the PC footing member 1 precast only at the lower section in the height direction of a footing H on the ground surface, a second process for erecting a steel column SC on the PC footing member 1, and a third process for constructing the upper section in the height direction of the footing H in a region A. A foundation beam member 2 precast at part or all of a foundation beam KB is suspended on the PC footing member 1 in the second process.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、建物の施工工期を
大幅に短縮できるプレキャストコンクリート製フーチン
グ部材(本明細書において「PCフーチング部材」とい
う。)及び該部材を用いた建物施工方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a footing member made of precast concrete (hereinafter referred to as "PC footing member") capable of greatly shortening the construction period of a building and a building construction method using the member.
【0002】[0002]
【従来の技術】従来、フーチングや基礎梁からなる基礎
を有する建物の施工は、例えば、全スパンのフーチング
について配筋、型枠建込、コンクリート打設、養生、型
枠解体を行った後、基礎梁についても同様に全スパンの
配筋、型枠建込、コンクリート打設、養生、型枠解体を
行い、その後鉄骨柱の建方や床の構築等の作業を行うと
いう手順が通常であった。
2. Description of the Related Art Conventionally, in the construction of a building having a footing or a foundation including a foundation beam, for example, after reinforcing bars, forming a formwork, placing concrete, curing, and dismantling a formwork for a full span footing, In the same way, it is normal for the foundation beams to be laid in all spans, formwork is built, concrete is put in place, cured, the formwork is demolished, and then work such as construction of steel columns and construction of floors is performed. Was.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うに、まず基礎全体を完成させ、その後上部構造の工事
に着手するという施工手順であると、各スパンについて
基礎工事と上部構造工事との間に待ち時間が発生し、全
体工期が長期化するという問題があった。そして、この
ような問題は、全スパンの基礎完成までに長期間を要す
る多スパン建物において特に深刻である。
However, as described above, in the construction procedure of first completing the entire foundation and then starting construction of the superstructure, the construction procedure for each span is between the foundation construction and the superstructure construction. There is a problem that a waiting time occurs and the entire construction period is prolonged. Such a problem is particularly serious in a multi-span building where it takes a long time to complete the foundation of the entire span.
【0004】本発明はこのような事情に鑑みてなされた
ものであり、基礎全体の完成を待たずに上部構造工事を
開始できる、すなわち基礎の施工と上部構造の施工とを
並行して進められる施工部材及びこれを用いた建物施工
方法を提案することにより、特に多スパン建物の施工工
期を大幅に短縮することを目的とするものである。
[0004] The present invention has been made in view of such circumstances, and it is possible to start the superstructure work without waiting for the completion of the entire foundation, ie, the construction of the foundation and the construction of the superstructure can proceed in parallel. It is an object of the present invention to significantly reduce the construction period of a multi-span building, in particular, by proposing construction members and a building construction method using the same.
【0005】[0005]
【課題を解決するための手段】すなわち、まず請求項1
に係る発明は、フーチングの高さ方向下部のみをプレキ
ャスト化したことを特徴とするPCフーチング部材であ
る。
That is, first, claim 1 is described.
The present invention relates to a PC footing member characterized in that only the lower portion in the height direction of the footing is precast.
【0006】このように、フーチングを高さ方向上部と
高さ方向下部とに分け、後者のみをプレキャスト化して
PCフーチング部材とすることにより、例えば、フーチ
ング全体の完成を待たずとも、PCフーチング部材を設
置した後すぐにその上に鉄骨柱やPC柱を建てることが
できるので、各スパンについて上部構造の工事着手時期
を前倒しして、全体工期を大幅に短縮することが可能と
なる。
[0006] As described above, the footing is divided into an upper portion in the height direction and a lower portion in the height direction, and only the latter is precast to be a PC footing member. For example, the PC footing member can be formed without waiting for the entire footing to be completed. Since the steel columns and PC columns can be built immediately after the installation, the time for starting the construction of the superstructure for each span can be brought forward, and the overall construction period can be significantly reduced.
【0007】また、請求項2に係る発明は、請求項1に
記載のPCフーチング部材であって、杭頭部を挿入する
ための杭頭挿入孔を高さ方向に貫通形成してなることを
特徴とする。
According to a second aspect of the present invention, there is provided the PC footing member according to the first aspect, wherein a pile head insertion hole for inserting a pile head is formed so as to penetrate in a height direction. Features.
【0008】このようにPCフーチング部材に杭頭挿入
孔が形成されていれば、この杭頭挿入孔に杭頭部を挿入
しながら該PCフーチング部材を設置することにより、
フーチングに杭頭部をのみ込ませた納まりとすることが
できるので、引抜力が作用する杭に適用可能なPCフー
チング部材となる。
If the PC footing member has the pile head insertion hole as described above, the PC footing member is installed while inserting the pile head into the pile head insertion hole,
Since the footing can be fit into the pile head only, the PC footing member can be applied to a pile on which a pulling force acts.
【0009】また、請求項3に係る発明は、請求項1又
は請求項2に記載のPCフーチング部材であって、上面
に、柱の柱脚部を固定するための柱脚固定手段を備えて
なることを特徴とする。
According to a third aspect of the present invention, there is provided the PC footing member according to the first or second aspect, further comprising a column base fixing means for fixing the column base of the column on the upper surface. It is characterized by becoming.
【0010】このようにPCフーチング部材の上面に柱
脚固定手段を備えていれば、鉄骨柱やPC柱の柱脚部を
固定するための後施工アンカーが不要となるので、より
一層の工期短縮を図ることができる。
[0010] If the column base fixing means is provided on the upper surface of the PC footing member as described above, a post-installed anchor for fixing the column base of the steel column or the PC column becomes unnecessary, so that the construction period is further reduced. Can be achieved.
【0011】また、請求項4に係る発明は、請求項1乃
至請求項3のいずれか一項に記載のPCフーチング部材
であって、上面に、フーチングの高さ方向上部と一体化
させるためのフーチング上部定着手段を備えてなること
を特徴とする。
According to a fourth aspect of the present invention, there is provided the PC footing member according to any one of the first to third aspects, wherein the PC footing member is integrated with an upper portion of the footing in the height direction. A footing upper fixing means is provided.
【0012】フーチングの高さ方向上部が現場打ち鉄筋
コンクリート製であるかプレキャストコンクリート製で
あるかを問わず、先行施工される高さ方向下部と後施工
される高さ方向上部とが確実に一体化したフーチングを
構築できるように、PCフーチング部材の上面に予めフ
ーチング上部定着手段を備えてあれば、後施工アンカー
が不要となるので、より一層の工期短縮を図ることがで
きる。
Regardless of whether the upper part of the footing in the height direction is made of cast-in-place reinforced concrete or precast concrete, the lower part in the height direction to be pre-constructed and the upper part in the height direction to be post-constructed are surely integrated. If a footing upper fixing means is provided in advance on the upper surface of the PC footing member so that the footing can be constructed, a post-installed anchor becomes unnecessary, so that it is possible to further shorten the construction period.
【0013】一方、請求項5に係る発明は、請求項1乃
至請求項4のいずれか一項に記載のPCフーチング部材
を地盤面に設置する第一工程と、PCフーチング部材の
上面に柱を建てる第二工程と、フーチングの高さ方向上
部を構築する第三工程と、を含むことを特徴とする建物
施工方法である。
According to a fifth aspect of the present invention, there is provided a first step of installing the PC footing member according to any one of the first to fourth aspects on a ground surface, and a step of mounting a pillar on an upper surface of the PC footing member. A building construction method comprising a second step of building and a third step of building an upper portion of the footing in the height direction.
【0014】このように、基礎全体はおろかフーチング
全体の完成さえも待つことなく、フーチングの高さ方向
下部だけをプレキャスト化して先行設置した後、その上
にすぐに柱を建てることにより、例えば上階梁の建方作
業のような上部構造工事の着手時期を各スパンについて
大幅に前倒しすることが可能となる。したがって、基礎
の施工と上部構造の施工とをほとんど並行して進めるこ
とができるようになり、特に多スパン建物の全体工期を
大幅に短縮することができる。
In this way, by precasting only the lower part of the footing in the height direction and pre-installing it without waiting for the entire foundation or even the completion of the entire footing, the column is immediately built on the top, for example, The start time of the superstructure work such as the construction work of the floor beams can be significantly advanced for each span. Therefore, the construction of the foundation and the construction of the superstructure can be proceeded almost in parallel, and in particular, the overall construction period of the multi-span building can be significantly reduced.
【0015】また、請求項6に係る発明は、請求項5に
記載の建物施工方法であって、第二工程において、PC
フーチング部材の上面に、基礎梁の一部又は全部をプレ
キャスト化したPC基礎梁部材を架け渡すことを特徴と
する。
According to a sixth aspect of the present invention, there is provided the building construction method according to the fifth aspect, wherein the PC is used in the second step.
The present invention is characterized in that a PC foundation beam member in which a part or the whole of a foundation beam is precast is bridged on the upper surface of the footing member.
【0016】このように、PCフーチング部材の設置後
に、基礎梁全体の配筋、型枠建込、コンクリート打設、
養生、型枠解体という手順で基礎を構築していくのでは
なく、PCフーチング部材の上面に、基礎梁の一部又は
全部をプレキャスト化したPC基礎梁部材を架け渡すこ
とにすれば、基礎梁の工事時間を短縮できるので、全体
工期をより一層短縮できる。
As described above, after the installation of the PC footing member, the reinforcement of the entire foundation beam, the formwork construction, the concrete casting,
Rather than building the foundation by the procedure of curing and dismantling the formwork, if a PC foundation beam member in which part or all of the foundation beam is precast is passed over the upper surface of the PC footing member, the foundation beam Since the construction time can be shortened, the overall construction period can be further reduced.
【0017】[0017]
【発明の実施の形態】以下、添付図面を参照しつつ、本
発明の実施形態について詳細に説明する。なお、説明に
おいて、同一要素には同一の符号を用い、重複する説明
は省略するものとする。
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the description, the same elements will be denoted by the same reference symbols, without redundant description.
【0018】<PCフーチング部材>図1に示すPCフ
ーチング部材1は、フーチングHの高さ方向下部のみを
プレキャスト化したハーフプレキャスト部材であって、
同図中に仮想線表示された領域Aに現場打ち鉄筋コンク
リートを後施工することにより、あるいは該領域Aに別
個のPC部材を設置することにより、全体として必要な
高さのフーチングHを構築するためのものである。すな
わち、フーチングH全体を現場打ち鉄筋コンクリート製
とすれば、フーチングHの工事時間が極めて長くなって
後続工事の着手が遅れるのに対し、あるいはフーチング
H全体をプレキャスト化すれば、重量が大きすぎて揚重
機の負担が重すぎるのに対し、フーチングHを高さ方向
下部と高さ方向上部とに分け、前者のみをプレキャスト
化して極力早期に設置してしまえば、例えばその上にす
ぐに鉄骨柱SCを建てることができる等、上部構造の工
事着手時期を前倒しすることができる上、揚重機の負担
も軽く済むことになる。したがって、揚重機の負担を軽
くし、後続工事の着手時期を前倒しするため、PCフー
チング部材1は、鉄骨柱SCやPC柱を建てるために必
要最小限の高さ範囲だけPC化したものとすればよく、
一般的には杭Kの杭径と同程度の高さ範囲だけPC化し
たものとすればよい。
<PC Footing Member> The PC footing member 1 shown in FIG. 1 is a half precast member obtained by precasting only the lower portion of the footing H in the height direction.
In order to construct the footing H of the required height as a whole by post-installing cast-in-place reinforced concrete in the area A indicated by the imaginary line in the figure or by installing a separate PC member in the area A. belongs to. That is, if the entire footing H is made of cast-in-place reinforced concrete, the construction time of the footing H becomes extremely long and the start of subsequent construction is delayed, or if the entire footing H is precast, the weight is too large to lift. If the load on the heavy equipment is too heavy, the footing H is divided into a lower part in the height direction and an upper part in the height direction, and only the former is precast and installed as early as possible. The construction work of the superstructure can be moved forward, and the load on the crane can be reduced. Therefore, in order to reduce the load on the lifting machine and to move forward the time of starting the subsequent construction, the PC footing member 1 is assumed to be a PC having a minimum necessary height for building the steel column SC or the PC column. All right,
Generally, the pile K may be made into a PC only in a height range similar to the pile diameter.
【0019】また、PCフーチング部材1には、杭K,
Kと対応する平面位置において、杭Kよりも一回り大き
な径の杭頭挿入孔1a,1aが高さ方向に貫通形成され
ている。この杭頭挿入孔1aは、直接基礎形式の建物や
杭に引抜力が作用しない杭基礎形式の建物には不要であ
るが、杭に引抜力が作用する杭基礎形式の建物には必要
となるものである。すなわち、杭Kに引抜力が作用する
杭基礎形式の建物においてはフーチングHと杭Kとを固
定する必要があるため、杭頭部Kaを地盤面から所定高
さだけ露出させて杭Kを打設しておき、杭頭部Kaを杭
頭挿入孔1aに挿入するようにしてPCフーチング部材
1を設置し、杭頭挿入孔1a中の杭頭部Ka周囲にコン
クリート等の充填材を注入すれば、杭頭部Kaがフーチ
ングHに所定長さのみ込まれた納まりとすることができ
る。
Further, the PC footing member 1 includes a pile K,
At a plane position corresponding to K, pile head insertion holes 1a, 1a having a diameter slightly larger than the pile K are formed to penetrate in the height direction. This pile head insertion hole 1a is not necessary for a building of the foundation type where the pulling force does not act directly on the foundation or a building of the pile foundation type where the pulling force does not act on the pile, but is required for a building of the pile foundation type where the pulling force acts on the pile. Things. That is, in a pile foundation type building in which a pulling force acts on the pile K, it is necessary to fix the footing H and the pile K. Therefore, the pile head Ka is exposed from the ground surface by a predetermined height to strike the pile K. The PC footing member 1 is installed so that the pile head Ka is inserted into the pile head insertion hole 1a, and a filler such as concrete is injected around the pile head Ka in the pile head insertion hole 1a. In this case, the pile head Ka can be fit into the footing H with a predetermined length.
【0020】そして、図2に示すように、杭頭挿入孔1
aの内周面は、高さ方向にコッター1bが形成された凹
凸面となっている。したがって、杭頭挿入孔1a中の杭
頭部Ka周囲にコンクリートやモルタル等の充填材Jを
注入し、充填材Jが硬化すれば、コッター1bにより充
填材JがPCフーチング部材1に強固に付着し、杭頭部
KaとPCフーチング部材1とが鉛直方向(図面上下方
向)にずれることを防止できる。なお、このようなずれ
を防止するためには、後にも述べるように杭頭部Kaの
外周面に目荒し処理を施しておくとさらに効果的であ
る。
Then, as shown in FIG.
The inner peripheral surface of a is an uneven surface on which a cotter 1b is formed in the height direction. Therefore, a filler J such as concrete or mortar is injected around the pile head Ka in the pile head insertion hole 1a, and when the filler J is hardened, the filler J is firmly adhered to the PC footing member 1 by the cotter 1b. However, it is possible to prevent the pile head Ka and the PC footing member 1 from shifting in the vertical direction (vertical direction in the drawing). In order to prevent such a deviation, it is more effective to apply a roughening treatment to the outer peripheral surface of the pile head Ka as described later.
【0021】また、PCフーチング部材1の上面には、
鉄骨柱SCの柱脚部を固定するための柱脚固定手段たる
アンカープレート1cが予め埋め込まれている。したが
って、PCフーチング部材1を設置した後、このアンカ
ープレート1cにボルトや鉄筋を溶接すれば、後施工ア
ンカーなしで鉄骨柱SCやPC柱を建てることができ
る。
On the upper surface of the PC footing member 1,
An anchor plate 1c as column base fixing means for fixing the column base of the steel column SC is embedded in advance. Therefore, if the bolt or the reinforcing bar is welded to the anchor plate 1c after the PC footing member 1 is installed, the steel column SC or the PC column can be built without a post-installed anchor.
【0022】また、PCフーチング部材1の上面には、
フーチング上部定着手段としての複数本の定着筋1d,
1d,…が予め植設されている。これらは、領域Aに後
施工される現場打ち鉄筋コンクリートをPCフーチング
部材1に確実に定着させて、一体化されたフーチングH
を構築するために設けられたものであり、その本数や配
置、各定着筋1dの径、形状、材質等については、構造
上あるいは施工上の事情を考慮して適宜定められる。な
お、領域Aに別個のPC部材を事後的に設置してフーチ
ングHを構築する場合には、定着筋1d,1d,…に代
えて、適宜の定着金物(図示省略)をフーチング上部定
着手段としてPCフーチング部材1の上面に埋め込んで
おけばよい。
On the upper surface of the PC footing member 1,
A plurality of fixing studs 1d as a footing upper fixing means,
Are pre-planted. These ensure that the cast-in-place reinforced concrete to be post-constructed in the area A is firmly fixed to the PC footing member 1, and the integrated footing H
The number, arrangement, diameter, shape, material, and the like of each fixing streak 1d are appropriately determined in consideration of structural or constructional conditions. When a footing H is constructed by separately installing a separate PC member in the area A, an appropriate fixing hardware (not shown) is used as the footing upper fixing means instead of the fixing streaks 1d, 1d,. It may be embedded in the upper surface of the PC footing member 1.
【0023】さらにまた、PCフーチング部材1の側面
には、複数本の定着筋1e,1e,…が予め植設されて
いる。これは、領域Bに後施工される現場打ち鉄筋コン
クリートをPCフーチング部材1に定着させて、フーチ
ングHと基礎梁KBとを確実に一体化させるために設け
られたものであり、その本数や配置、各定着筋1eの
径、形状、材質等については、構造上あるいは施工上の
事情を考慮して適宜定められる。なお、領域Bに別個の
PC部材を事後的に設置して基礎梁KBを構築する場合
には、定着筋1e,1e,…に代えて、適宜の定着金物
(図示省略)をPCフーチング部材1の側面に埋め込ん
でおけばよい。
Further, a plurality of fixing streaks 1e, 1e,... Are implanted on the side surface of the PC footing member 1 in advance. This is provided in order to fix the cast-in-place reinforced concrete to be post-constructed in the area B to the PC footing member 1 and to reliably integrate the footing H and the foundation beam KB. The diameter, shape, material, and the like of each fixing streak 1e are appropriately determined in consideration of structural or constructional circumstances. In the case where a separate PC member is subsequently installed in the area B to construct the foundation beam KB, an appropriate fixing hardware (not shown) is replaced with the PC footing member 1 in place of the fixing streaks 1e, 1e,. It should just be embedded in the side of.
【0024】<PC基礎梁部材>PC基礎梁部材2は、
図3に示すように、基礎梁KBの断面上部のみをプレキ
ャスト化したハーフプレキャスト部材であって、領域B
に現場打ち鉄筋コンクリートを後施工することにより、
あるいは該領域Bに別個のPC部材を設置することによ
り、全体としてせいの大きな基礎梁KBを構築するため
のものである。すなわち、基礎梁KB全体を現場打ち鉄
筋コンクリート製とすれば、基礎梁KBの工事時間が極
めて長くなって後続工事の着手が遅れるのに対し、基礎
梁KBの一部あるいは全部をプレキャスト化してこれを
早期に設置すれば、基礎梁KBの工事時間を短縮できる
ので、全体工期も短縮することができる。さらに、基礎
梁KB全体をプレキャスト化すると、重量が大きすぎて
揚重機の負担が重すぎるため、特に基礎梁KBを断面上
部と断面下部とに分け、上部構造と取合う前者のみをプ
レキャスト化して極力早期に施工することにすれば、床
構築等の上部構造工事の着手時期を前倒しすることがで
き、揚重機の負担も軽く済むことになる。したがって、
この場合、揚重機の負担を軽くし、後続工事の着手時期
を前倒しするため、PC基礎梁部材2は、上部構造と取
合いのある最小限の断面範囲だけPC化したものとすれ
ばよい。なお、ここで示したPC基礎梁部材2は端部が
ハンチ状に形成されているが、これは揚重機の揚重能力
を考慮してさらなる軽量化を図ったためである。
<PC foundation beam member>
As shown in FIG. 3, a half precast member in which only the upper section of the foundation beam KB is precast,
By post-installing cast-in-place reinforced concrete on
Alternatively, by installing a separate PC member in the area B, a large foundation beam KB is constructed as a whole. That is, if the entire foundation beam KB is made of cast-in-place reinforced concrete, the construction time of the foundation beam KB becomes extremely long and the start of subsequent construction is delayed. If it is installed early, the construction time of the foundation beam KB can be shortened, so that the entire construction period can also be shortened. Further, if the entire foundation beam KB is precast, the weight is too large and the load on the lifting machine is too heavy. In particular, the foundation beam KB is divided into a sectional upper part and a sectional lower part, and only the former engaging with the upper structure is precast. If the construction is carried out as early as possible, the timing of starting the construction of the upper structure such as floor construction can be brought forward, and the load on the lifting machine can be reduced. Therefore,
In this case, in order to reduce the load on the lifting machine and to move forward the timing of starting the subsequent work, the PC foundation beam member 2 may be formed into a PC only in a minimum cross-sectional area that is compatible with the upper structure. Note that the PC foundation beam member 2 shown here has a haunched end, which is because the weight is further reduced in consideration of the lifting capacity of the lifting machine.
【0025】PC基礎梁部材2の底面には、複数本の定
着筋2a,2a,…が予め植設されている。これらは、
領域Bに後施工される現場打ち鉄筋コンクリートをPC
基礎梁部材2に確実に定着させて、一体化された基礎梁
KBを構築するために設けられたものであり、その本数
や配置、各定着筋2aの径、形状、材質等については、
構造上あるいは施工上の事情を考慮して適宜定められ
る。なお、領域Bに別個のPC部材を事後的に設置して
基礎梁KBを構築する場合には、定着筋2a,2a,…
に代えて、適宜の定着金物(図示省略)をPC基礎梁部
材2の底面に埋め込んでおけばよい。
On the bottom surface of the PC foundation beam member 2, a plurality of anchoring streaks 2a, 2a,. They are,
PC with cast-in-place reinforced concrete to be post-constructed in area B
It is provided for securely fixing to the foundation beam member 2 and constructing the integrated foundation beam KB. The number, arrangement, diameter, shape, material, etc. of the fixing streaks 2a are as follows.
It is appropriately determined in consideration of structural or constructional circumstances. In the case where a separate PC member is subsequently installed in the area B to construct the foundation beam KB, the anchoring streaks 2a, 2a,.
Instead, an appropriate fixing hardware (not shown) may be embedded in the bottom surface of the PC foundation beam member 2.
【0026】また、PC基礎梁部材2の一端面(図中左
側面)、他端面(図中右側面)にはそれぞれ、定着筋2
b,2b,…、継手筋2c,2c,…が予め植設されて
いる。前者は、領域Aに後施工されるフーチングHの高
さ方向上部との定着を図るために設けられたものであ
り、後者は、建物のスパン長が大きく、揚重機の能力と
の関係上PC基礎梁部材2の長さをあまり大きくできな
い場合に、他のPC基礎梁部材2’と長手方向に継ぎ合
わせることによりスパン長の大きな基礎梁KBを構築す
べく、領域Cにおける継手の後施工のために設けられた
ものである。そして、定着筋2b、継手筋2cの本数や
配置、各定着筋2bあるいは継手筋2cの径、形状、材
質等についても、構造上あるいは施工上の事情を考慮し
て適宜定められる。なお、ここではPC基礎梁部材2の
一方の端面に定着筋2b,2b,…を、他方の端面に継
手筋2c,2c,…を設けているが、定着筋2bや継手
筋2cを全く設けないこととしてもよいし、いずれか一
方の端面のみに定着筋2b又は継手筋2cを設け、他方
の端面には定着筋2bや継手筋2cを全く設けないこと
としてもよく、あるいは両端面に定着筋2bを設けた
り、両端面に継手筋2cを設けるようにしてもよい。
An anchoring line 2 is provided on one end face (left side in the figure) and the other end face (right side in the figure) of the PC foundation beam member 2, respectively.
, 2b,..., joint bars 2c, 2c,. The former is provided in order to fix the footing H to the upper portion in the height direction of the footing H to be post-constructed in the area A. When the length of the foundation beam member 2 cannot be increased so much, in order to construct the foundation beam KB having a large span length by joining the other PC foundation beam members 2 'in the longitudinal direction, post-installation of the joint in the region C is performed. It is provided for the purpose. The number and arrangement of the fixing streaks 2b and the joint streaks 2c, and the diameter, shape, material, and the like of each fixing streak 2b and the joint streaks 2c are appropriately determined in consideration of structural or constructional circumstances. Here, the anchoring bars 2b, 2b,... Are provided on one end surface of the PC foundation beam member 2 and the joint bars 2c, 2c,. It is also possible to provide no fixing streaks 2b or joint stitches 2c on only one end face and no fixing stitches 2b or joint stitches 2c at the other end face, or fix at both end faces. The streaks 2b may be provided, or the joint streaks 2c may be provided at both end surfaces.
【0027】本実施形態では、断面上部のみをプレキャ
スト化したPC基礎梁部材2を用いているが、本発明は
これに限定されるわけではなく、他のパターンで一部を
プレキャスト化したPC基礎梁部材(例えば、断面下部
のみをプレキャスト化したものや断面側部のみをプレキ
ャスト化したもの)を用いてもよく、全部をプレキャス
ト化したPC基礎梁部材を用いてもよい。
In this embodiment, the PC foundation beam member 2 in which only the upper section is precast is used. However, the present invention is not limited to this, and the PC foundation beam in which a part is precast in another pattern is used. A beam member (for example, one in which only the lower part of the cross section is precast or one in which only the side part of the cross section is precast) may be used, or a PC base beam member in which the whole is precast may be used.
【0028】<建物施工方法>図4〜図6は、本発明に
係る建物施工方法の一実施形態を表す工程図である。
<Building Construction Method> FIGS. 4 to 6 are process diagrams showing an embodiment of a building construction method according to the present invention.
【0029】(1)杭の打設(図4(1)参照) 杭基礎形式を採用する建物の施工にあっては、まず杭K
を打設することになる。杭Kは、現場打ちRC杭、PC
杭、鋼管杭等の種類を問わない。そして、杭Kに引抜力
が作用する場合には、同図に示すように杭Kの杭頭部K
aを所定長さ(例えば杭Kの杭径と同等以上)地盤面上
に露出させておき、望ましくは図2に示すように杭頭部
Kaの外周面に目荒し処理を施す。杭Kに引抜力が作用
しない場合には、地盤面上に杭頭部Kaを露出させる必
要はない。なお、図中の杭Kの上端からは主筋が露出し
ていないが、杭Kが現場打ちコンクリート製である場合
には、杭Kの杭頭部Kaをはつって主筋を露出させても
よい。ただし、この場合には、後で施工されるフーチン
グHの高さ方向上部をPC部材で構築することはでき
ず、該部分は必然的に現場打ちコンクリートで構築され
ることになる。杭Kに引抜力が作用せず、地盤面上に杭
頭部Kaを露出させない場合においては、PCフーチン
グ部材1を設置するために、杭Kの主筋を露出させない
ものとする。
(1) Driving a pile (see FIG. 4 (1)) In the construction of a building adopting a pile foundation type, first, a pile K
Will be cast. Pile K is cast-in-place RC pile, PC
Regardless of the type of pile, steel pipe pile, etc. When a pulling force acts on the pile K, as shown in FIG.
a is exposed on the ground surface for a predetermined length (for example, equal to or larger than the pile diameter of the pile K), and preferably, the outer peripheral surface of the pile head Ka is roughened as shown in FIG. When the pulling force does not act on the pile K, it is not necessary to expose the pile head Ka on the ground surface. Although the main reinforcement is not exposed from the upper end of the pile K in the figure, when the pile K is made of cast-in-place concrete, the main reinforcement may be exposed by attaching the pile head Ka of the pile K. . However, in this case, the upper part in the height direction of the footing H to be constructed later cannot be constructed with the PC member, and this part is necessarily constructed with cast-in-place concrete. When the pulling force does not act on the pile K and the pile head Ka is not exposed on the ground surface, the main reinforcement of the pile K is not exposed to install the PC footing member 1.
【0030】(2)PCフーチング部材の設置(図4
(2)参照) 床付後、杭頭部Kaを杭頭挿入孔1aに挿入するように
してPCフーチング部材1を設置する。杭Kに引抜力が
作用せず、地盤面上に杭Kの杭頭部Kaを露出させなか
った場合や、直接基礎形式を採用する場合には、杭頭挿
入孔1aが形成されていないPCフーチング部材を設置
することになる。なお、直接基礎形式を採用する建物の
施工にあっては、本工程(2)が最初の工程となる。
(2) Installation of PC footing member (FIG. 4)
(Refer to (2).) After attaching the floor, the PC footing member 1 is installed so that the pile head Ka is inserted into the pile head insertion hole 1a. In the case where the pulling force does not act on the pile K and the pile head Ka of the pile K is not exposed on the ground surface, or when the direct foundation type is adopted, the PC without the pile head insertion hole 1a is formed. A footing member will be installed. This step (2) is the first step in the construction of a building employing the direct foundation type.
【0031】(3)杭頭挿入孔への充填材の注入(図4
(3)参照) PCフーチング部材1の杭頭挿入孔1a中における杭頭
部Ka周囲に、コンクリートやモルタル等の充填材Jを
注入することにより、杭KとPCフーチング部材1とを
固定する。本工程(3)の完了後には、杭Kに引抜力が
作用する場合であっても、PCフーチング部材1の上面
に柱を建てることが可能な状態となる。もちろん、杭K
に引抜力が作用せず、地盤面上に杭Kの杭頭部Kaを露
出させなかった場合や、直接基礎形式を採用する場合に
は、本工程(3)は不要である。杭頭挿入孔1aの内周
面にコッター1b等の凹凸が形成されている場合や杭頭
部Kaの外周面に目荒し処理が施されている場合には、
杭KとPCフーチング部材1とがより強固に固定され
る。
(3) Injection of filler into the pile head insertion hole (FIG. 4)
(See (3)) The pile K and the PC footing member 1 are fixed by injecting a filler J such as concrete or mortar around the pile head Ka in the pile head insertion hole 1a of the PC footing member 1. After the completion of the step (3), even when a pulling force is applied to the pile K, a column can be built on the upper surface of the PC footing member 1. Of course, pile K
This step (3) is unnecessary when the pulling force does not act on the pile and the pile head Ka of the pile K is not exposed on the ground surface or when a direct foundation type is adopted. When unevenness such as a cotter 1b is formed on the inner peripheral surface of the pile head insertion hole 1a or when the outer peripheral surface of the pile head Ka is roughened,
The pile K and the PC footing member 1 are more firmly fixed.
【0032】(4)鉄骨柱の建方(図4(4)参照) PCフーチング部材1の上面に予め埋め込まれているア
ンカープレート1cに対してボルトや鉄筋を溶接固定
し、その上に鉄骨柱SCを建てて固定する。もちろん、
鉄骨柱SCに代えてPC柱としてもよい。本工程(4)
は前工程(3)が完了すればいつ行ってもよいが、鉄骨
柱SCの建方着手時期をなるべく前倒しするようにすれ
ば、それだけ鉄骨梁架設等の上部構造工事の着手時期も
早まり、基礎工事と上部構造工事とを並行して進められ
て、結果的に全体工期の大幅な短縮につながるため、こ
こでは前工程(3)の完了後すぐに本工程(4)を行う
こととしている。
(4) Construction of steel column (see FIG. 4 (4)) Bolts and reinforcing bars are fixed to the anchor plate 1c embedded in the upper surface of the PC footing member 1 in advance by welding, and the steel column is mounted thereon. Build and fix the SC. of course,
A PC column may be used instead of the steel column SC. This step (4)
May be performed at any time if the previous process (3) is completed. However, if the construction start time of the steel column SC is moved forward as much as possible, the start time of the superstructure work such as the erection of the steel beam is accelerated. Since the construction work and the superstructure construction work proceed in parallel, resulting in a significant reduction in the overall construction period, the present step (4) is performed immediately after the completion of the previous step (3).
【0033】(5)屋根の架設(図5(5)参照) 屋根鉄骨梁TBを鉄骨柱SCに接合し、屋根を架設す
る。本工程(5)が完了した後は、悪天候であっても屋
根の下方空間について工事を中止する必要がなくなり、
工事進捗を促進することができる。このような観点か
ら、ここでは本工程(5)を前工程(4)の完了後すぐ
に行っているが、もちろんこのような順序に限定される
ものではない。なお、ここでは図示していないが、屋根
の架設と相前後して上階鉄骨梁の架設工事等を行っても
よい。
(5) Construction of the roof (see FIG. 5 (5)) The roof steel beam TB is joined to the steel column SC, and the roof is constructed. After the completion of this step (5), there is no need to stop construction work under the roof even in bad weather,
Construction progress can be promoted. From this viewpoint, the present step (5) is performed immediately after the completion of the previous step (4), but is not limited to such an order. Although not shown here, the construction work of the upper steel beam may be performed immediately before and after the construction of the roof.
【0034】(6)PC基礎梁部材の架設(図5(6)
参照) 隣り合うPCフーチング部材1,1の上面にPC基礎梁
部材2の端部を載せて架け渡す。ここでは本工程(6)
を前工程(5)の完了後に行っているが、本工程(6)
はPCフーチング部材1を設置して杭Kと固定した後、
すなわち工程(3)の完了後であればいつ行ってもよ
い。ただし、本工程(6)の完了をなるべく前倒しする
ようにすれば、それだけ床Fの構築等の上部構造工事の
着手時期も早まり、基礎工事と上部構造工事とを並行し
て進められるというメリットがある。また、必要に応じ
て、PC基礎梁部材2に基礎小梁(現場打ちRC製でも
PC製でもよい:図示省略)を接合する。さらに、揚重
機の揚重能力等との関係上、隣り合うPCフーチング部
材1,1間に架け渡せるほどにPC基礎梁部材2を長く
できない場合には、隣り合うPCフーチング部材1,1
間に束柱(図示省略)を設置しておき、PC基礎梁部材
2の一端をPCフーチング部材1上に、他端を束柱上に
架け渡すようにすればよい。
(6) Installation of PC foundation beam members (FIG. 5 (6))
(See Reference) The end of the PC foundation beam member 2 is placed on the upper surface of the adjacent PC footing members 1 and 1 and bridged. Here, this step (6)
Is performed after completion of the previous step (5).
After installing the PC footing member 1 and fixing it to the pile K,
That is, it may be performed any time after the completion of step (3). However, if the completion of the step (6) is brought forward as much as possible, the time to start the superstructure work such as the construction of the floor F is earlier, and the merit that the foundation work and the upper structure work can be performed in parallel. is there. In addition, if necessary, a foundation small beam (which may be made of cast-in-place RC or made of PC: not shown) is joined to the PC foundation beam member 2. Furthermore, if the PC foundation beam member 2 cannot be made long enough to bridge between the adjacent PC footing members 1, 1 due to the lifting capacity of the hoisting machine, etc.,
A bundle of pillars (not shown) may be installed between them, and one end of the PC foundation beam member 2 may be bridged over the PC footing member 1 and the other end may be bridged over the bundle pillar.
【0035】(7)フーチングの高さ方向上部の配筋
(図5(7)参照) PCフーチング部材1の上部に、フーチングHの高さ方
向上部の配筋を行う。PCフーチング部材1の上面に定
着筋1dが植設されている場合やPC基礎梁部材2の端
面に定着筋2bが植設されている場合には、これらを利
用する。本工程(7)は、鉄骨柱SCの建方が完了し、
かつPC基礎梁部材2の架設が完了すれば、いつ行って
もよいが、本工程(7)の完了が遅延すると、床Fの構
築に支障がでることもある。
(7) Reinforcing the upper part of the footing H in the height direction (see FIG. 5 (7)) The upper part of the footing H is disposed on the upper part of the PC footing member 1. When the fixing streaks 1d are implanted on the upper surface of the PC footing member 1 or when the fixing streaks 2b are implanted on the end surface of the PC foundation beam member 2, these are used. In this step (7), the construction of the steel column SC is completed,
Further, the installation may be performed at any time as long as the installation of the PC foundation beam member 2 is completed. However, if the completion of the step (7) is delayed, the construction of the floor F may be hindered.
【0036】(8)床の配筋(図5(8)参照) PC基礎梁部材2の上にデッキプレートDPを敷設し、
さらにその上に床Fの配筋を行う。もちろん、デッキプ
レートDPに代えてキーストンプレートやハーフPC版
を用いてもよい。さらに床FをフルPC版とした場合に
は、PC基礎梁部材2の上にフルPC版を敷設し、配筋
作業は不要となる。
(8) Reinforcing the floor (see FIG. 5 (8)) A deck plate DP is laid on the PC foundation beam member 2,
Further, the floor F is arranged thereon. Of course, a keystone plate or a half PC plate may be used instead of the deck plate DP. Further, when the floor F is a full PC version, the full PC version is laid on the PC foundation beam member 2 and the reinforcing work is not required.
【0037】(9)フーチングの高さ方向上部及び床の
コンクリート打設(図6(9)参照) フーチングHの高さ方向上部及び床Fのコンクリート打
設を一体に行う。もちろん、フーチングHの高さ方向上
部についてのコンクリート打設と床Fのコンクリート打
設とを別々に行ってもよい。本工程(9)の完了後、す
なわち床Fが完成した後は、内部建屋IHの構築等の上
部構造工事に着手することができ、基礎工事と上部構造
工事とを並行して進められるので、全体工期の大幅な短
縮を図ることができる。
(9) Concrete placing on the upper part of the footing H in the height direction and the floor (see FIG. 6 (9)) Concrete placing on the upper part of the footing H in the height direction and the floor F are integrally performed. Of course, the concrete placing on the upper portion of the footing H in the height direction and the concrete placing on the floor F may be performed separately. After the completion of this step (9), that is, after the floor F is completed, it is possible to start the superstructure work such as the construction of the internal building IH, and the foundation work and the superstructure work can be performed in parallel. The overall construction period can be significantly reduced.
【0038】(10)内部建屋の構築(図6(10)参
照) 完成した床F上に内部建屋IHを構築する。もちろん、
内部建屋IHがない場合には、本工程(10)は不要で
ある。
(10) Construction of Internal Building (See FIG. 6 (10)) The internal building IH is constructed on the completed floor F. of course,
If there is no internal building IH, this step (10) is unnecessary.
【0039】(11)基礎梁の断面下部の配筋(図6
(11)参照) 基礎梁KBの断面下部の配筋を行う。PCフーチング部
材1の側面に定着筋1eが植設されている場合やPC基
礎梁部材2の底面に定着筋2aが植設されている場合に
はこれらを利用する。本工程(11)は、ここで示した
ように前工程(10)の完了後に行わなければならない
わけではなく、PC基礎梁部材2の架設後(ここでは工
程(6)の完了後)であれば、いつ行ってもよい。すな
わち、本工程(11)は、他の作業の前提となる工程で
はないため、他の作業との関係を考慮して最適な時期を
選択することが望ましい。なお、基礎梁KBの剛性がそ
れほど必要でなく、PC基礎梁部材2だけで足りる場合
には、もちろん本工程(11)を省略することになる。
(11) Reinforcement at the lower section of the foundation beam (FIG. 6)
(Refer to (11).) Reinforcement of the lower section of the foundation beam KB is performed. When the anchoring streak 1e is implanted on the side surface of the PC footing member 1 or when the anchoring streak 2a is implanted on the bottom surface of the PC foundation beam member 2, these are used. This step (11) does not have to be performed after the completion of the previous step (10) as shown here, but may be performed after the erection of the PC foundation beam member 2 (here, after the completion of the step (6)). You may go anytime. That is, since this step (11) is not a prerequisite step for other work, it is desirable to select an optimal time in consideration of the relationship with other work. If the rigidity of the foundation beam KB is not so required and only the PC foundation beam member 2 is sufficient, the step (11) is of course omitted.
【0040】(12)基礎梁の断面下部のコンクリート
打設(図6(12)参照) 基礎梁KBの断面下部の型枠を建て込み、コンクリート
を打設する。所定期間の養生後、型枠を解体すれば、基
礎梁KBが完成する。本工程(12)も前工程(11)
と同様、他の作業との関係を考慮して最適な時期を選択
することになる。本工程(12)が完了すれば、基礎全
体が完成することになる。なお、基礎梁KBの剛性がそ
れほど必要でなく、PC基礎梁部材2だけで足りる場合
には、もちろん本工程(12)を省略することになる。
(12) Casting concrete at the lower part of the section of the foundation beam (see FIG. 6 (12)) Forming the formwork at the lower part of the section of the foundation beam KB and placing concrete. After curing for a predetermined period, the formwork is dismantled to complete the foundation beam KB. This step (12) is also the previous step (11)
Similarly to the above, the optimum time is selected in consideration of the relationship with other work. When this step (12) is completed, the entire foundation is completed. If the rigidity of the foundation beam KB is not so required and only the PC foundation beam member 2 is sufficient, this step (12) is of course omitted.
【0041】(13)その他 工程(12)の完了後は、通常の手順に従い、建物の施
工を行う。なお、本発明に係る建物施工方法はここで示
した手順に限定されるわけではなく、建物の種類に応じ
た適宜の変更を加えて実施されるべきものである。
(13) Others After the completion of the step (12), the building is constructed according to a normal procedure. Note that the building construction method according to the present invention is not limited to the procedure shown here, and should be carried out with appropriate changes according to the type of building.
【0042】[0042]
【発明の効果】以上のように、請求項1に係る発明は、
フーチングを高さ方向上部と高さ方向下部とに分け、後
者のみをプレキャスト化してPCフーチング部材とする
ことにより、例えば、フーチング全体の完成を待たずと
も、PCフーチング部材を設置した後すぐにその上に鉄
骨柱やPC柱を建てることができるものであるので、各
スパンについて上部構造の工事着手時期を前倒しして、
全体工期を大幅に短縮することが可能となる。また、柱
脚を完全に固定することができるので、柱部材の断面を
小さくしたり、主筋量を減らすことも可能である。
As described above, the invention according to claim 1 is
By dividing the footing into an upper part in the height direction and a lower part in the height direction and precasting only the latter into a PC footing member, for example, immediately after installing the PC footing member, without waiting for completion of the entire footing, Since it is possible to build steel columns and PC columns on the top, the construction start time of the superstructure is advanced for each span,
The entire construction period can be significantly reduced. Further, since the column base can be completely fixed, it is possible to reduce the cross section of the column member and to reduce the amount of main muscle.
【0043】また、請求項2に係る発明によれば、杭頭
挿入孔に杭頭部を挿入しながらPCフーチング部材を設
置することにより、フーチングに杭頭部をのみ込ませた
納まりとすることができるので、引抜力が作用する杭に
適用可能なPCフーチング部材となる。
According to the second aspect of the present invention, by installing the PC footing member while inserting the pile head into the pile head insertion hole, it is possible to make the footing fit with the pile head alone. Therefore, the PC footing member can be applied to a pile on which a pulling force acts.
【0044】また、請求項3に係る発明によれば、鉄骨
柱やPC柱の柱脚部を固定するための後施工アンカーが
不要となるので、より一層の工期短縮を図ることができ
る。
According to the third aspect of the present invention, since a post-installed anchor for fixing a column base of a steel column or a PC column is not required, the construction period can be further reduced.
【0045】また、請求項4に係る発明によれば、先行
施工される高さ方向下部と後施工される高さ方向上部と
が確実に一体化したフーチングを構築するための後施工
アンカーが不要となるので、より一層の工期短縮を図る
ことができる。
According to the fourth aspect of the present invention, there is no need for a post-installed anchor for constructing a footing in which the preceding lower part in the height direction and the later upper part in the height direction are surely integrated. Therefore, it is possible to further shorten the construction period.
【0046】一方、請求項5に係る発明によれば、基礎
全体はおろかフーチング全体の完成さえも待つことな
く、フーチングの高さ方向下部だけをプレキャスト化し
て先行設置した後、その上にすぐに柱を建てるため、例
えば上階梁の建方作業のような上部構造工事の着手時期
を各スパンについて大幅に前倒しすることが可能とな
る。したがって、基礎の施工と上部構造の施工とをほと
んど並行して進めることができるようになり、特に多ス
パン建物の全体工期を大幅に短縮することができる。
On the other hand, according to the fifth aspect of the present invention, the entire foundation is not waited for even the completion of the entire footing, and only the lower portion in the height direction of the footing is precast and pre-installed. Since the pillars are built, it is possible to significantly advance the start time of the superstructure work such as the construction work of the upper floor beam for each span, for example. Therefore, the construction of the foundation and the construction of the superstructure can be proceeded almost in parallel, and in particular, the overall construction period of the multi-span building can be significantly reduced.
【0047】また、請求項6に係る発明によれば、基礎
梁の工事時間を短縮できるので、全体工期をより一層短
縮できる。
According to the invention of claim 6, since the construction time of the foundation beam can be reduced, the overall construction period can be further reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明に係るPCフーチング部材の一実施形態
を表す斜視図である。
FIG. 1 is a perspective view illustrating an embodiment of a PC footing member according to the present invention.
【図2】図1における杭頭挿入孔まわりの納まりを表す
縦断面図である。
FIG. 2 is a vertical cross-sectional view showing the fitting around a pile head insertion hole in FIG.
【図3】PC基礎梁部材を表す斜視図である。FIG. 3 is a perspective view showing a PC foundation beam member.
【図4】本発明に係る建物施工方法の一実施形態を表す
工程図である。
FIG. 4 is a process chart showing an embodiment of a building construction method according to the present invention.
【図5】図4に続く工程図である。FIG. 5 is a process drawing following FIG. 4;
【図6】図5に続く工程図である。FIG. 6 is a process drawing following FIG. 5;
【符号の説明】[Explanation of symbols]
1 … PCフーチング部材 1a … 杭頭挿入孔 1b … コッター 1c … アンカープレート(柱脚固定手段) 1d … 定着筋(フーチング上部定着手段) 1e … 定着筋 2 … PC基礎梁部材 2a … 定着筋 2b … 定着筋 2c … 継手筋 DP … デッキプレート F … 床 H … フーチング IH … 内部建屋 J … 充填材 K … 杭 Ka … 杭頭部 KB … 基礎梁 SC … 鉄骨柱 TB … 屋根鉄骨梁 DESCRIPTION OF SYMBOLS 1 ... PC footing member 1a ... Pile head insertion hole 1b ... Cotter 1c ... Anchor plate (column base fixing means) 1d ... Fixing streaks (footing upper fixing means) 1e ... Fixing streaks 2 ... PC foundation beam member 2a ... Fixing streaks 2b ... Anchoring bar 2c ... Joint bar DP ... Deck plate F ... Floor H ... Footing IH ... Inner building J ... Filling material K ... Pile Ka ... Pile head KB ... Foundation beam SC ... Steel column TB ... Roof steel beam
フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) E04B 1/58 511 E04B 1/58 511F 1/61 1/60 501 1/38 507E Fターム(参考) 2D046 AA17 BA32 CA03 2E125 AA03 AA44 AA46 AA57 AA58 AA68 AB12 AB13 AB17 AC02 AC04 AC07 AC15 AE02 AE04 AE07 AE13 AG02 AG03 AG06 AG08 AG12 AG22 AG28 AG41 BB01 BB08 BB30 BD01 BE07 BE08 BE10 BF04 CA82 CA90 EA00 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) E04B 1/58 511 E04B 1/58 511F 1/61 1/60 501 1/38 507E F-term (reference) 2D046 AA17 BA32 CA03 2E125 AA03 AA44 AA46 AA57 AA58 AA68 AB12 AB13 AB17 AC02 AC04 AC07 AC15 AE02 AE04 AE07 AE13 AG02 AG03 AG06 AG08 AG12 AG22 AG28 AG41 BB01 BB08 BB30 BD01 BE07 BE08 BE10 BF04 CA82 CA90 EA00

Claims (6)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 フーチングの高さ方向下部のみをプレキ
    ャスト化したことを特徴とするPCフーチング部材。
    1. A PC footing member wherein only the lower part in the height direction of the footing is precast.
  2. 【請求項2】 杭頭部を挿入するための杭頭挿入孔を高
    さ方向に貫通形成してなることを特徴とする請求項1に
    記載のPCフーチング部材。
    2. The PC footing member according to claim 1, wherein a pile head insertion hole for inserting the pile head is formed so as to penetrate in a height direction.
  3. 【請求項3】 上面に、柱の柱脚部を固定するための柱
    脚固定手段を備えてなることを特徴とする請求項1又は
    請求項2に記載のPCフーチング部材。
    3. The PC footing member according to claim 1, further comprising a column fixing means for fixing a column base of the column on the upper surface.
  4. 【請求項4】 上面に、前記フーチングの高さ方向上部
    と一体化させるためのフーチング上部定着手段を備えて
    なることを特徴とする請求項1乃至請求項3のいずれか
    一項に記載のPCフーチング部材。
    4. The PC according to claim 1, further comprising a footing upper fixing means for integrating the footing with an upper portion in a height direction of the footing. Footing member.
  5. 【請求項5】 請求項1乃至請求項4のいずれか一項に
    記載のPCフーチング部材を地盤面に設置する第一工程
    と、 前記PCフーチング部材の上面に柱を建てる第二工程
    と、 前記フーチングの高さ方向上部を構築する第三工程と、
    を含むことを特徴とする建物施工方法。
    5. A first step of installing the PC footing member according to any one of claims 1 to 4 on a ground surface, a second step of erecting a pillar on an upper surface of the PC footing member, A third step of building the upper part of the footing in the height direction,
    A building construction method comprising:
  6. 【請求項6】 前記第二工程において、前記PCフーチ
    ング部材の上面に、基礎梁の一部又は全部をプレキャス
    ト化したPC基礎梁部材を架け渡すことを特徴とする請
    求項5に記載の建物施工方法。
    6. The building construction according to claim 5, wherein in the second step, a PC foundation beam member in which a part or all of a foundation beam is precast is bridged on an upper surface of the PC footing member. Method.
JP2000178738A 2000-06-14 2000-06-14 Building construction method Expired - Fee Related JP4532677B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344432A (en) * 2004-06-04 2005-12-15 Toyota T & S Kensetsu Kk Construction foundation
JP2007002655A (en) * 2005-05-27 2007-01-11 Shimizu Corp Joining structure of pile head and its construction method
JP2010242327A (en) * 2009-04-02 2010-10-28 Runhorn Pretech Engineering Co Ltd Precast pile cap structure, and method for joining the same
JP2015200094A (en) * 2014-04-07 2015-11-12 株式会社竹中工務店 footing foundation structure
JP2016070028A (en) * 2014-10-01 2016-05-09 株式会社竹中工務店 Substructure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103334374B (en) * 2013-04-16 2016-08-31 广东省长大公路工程有限公司 PCSS shearing coupling arrangement

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JPH02164934A (en) * 1988-12-19 1990-06-25 Asahi Chem Ind Co Ltd Foundation construction method
JPH0577336U (en) * 1992-03-27 1993-10-22 ナショナル住宅産業株式会社 Foundation support members
JPH09273161A (en) * 1996-04-09 1997-10-21 Kajima Corp Pile hear reinforcing construction
JPH10299003A (en) * 1997-04-24 1998-11-10 Toda Constr Co Ltd Foundation work using precast concrete member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164934A (en) * 1988-12-19 1990-06-25 Asahi Chem Ind Co Ltd Foundation construction method
JPH0577336U (en) * 1992-03-27 1993-10-22 ナショナル住宅産業株式会社 Foundation support members
JPH09273161A (en) * 1996-04-09 1997-10-21 Kajima Corp Pile hear reinforcing construction
JPH10299003A (en) * 1997-04-24 1998-11-10 Toda Constr Co Ltd Foundation work using precast concrete member

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344432A (en) * 2004-06-04 2005-12-15 Toyota T & S Kensetsu Kk Construction foundation
JP2007002655A (en) * 2005-05-27 2007-01-11 Shimizu Corp Joining structure of pile head and its construction method
JP4734151B2 (en) * 2005-05-27 2011-07-27 住友金属工業株式会社 Pile head joint structure and construction method
JP2010242327A (en) * 2009-04-02 2010-10-28 Runhorn Pretech Engineering Co Ltd Precast pile cap structure, and method for joining the same
JP2015200094A (en) * 2014-04-07 2015-11-12 株式会社竹中工務店 footing foundation structure
JP2016070028A (en) * 2014-10-01 2016-05-09 株式会社竹中工務店 Substructure

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