JPH02164933A - Architecture foundation construction method - Google Patents
Architecture foundation construction methodInfo
- Publication number
- JPH02164933A JPH02164933A JP32017788A JP32017788A JPH02164933A JP H02164933 A JPH02164933 A JP H02164933A JP 32017788 A JP32017788 A JP 32017788A JP 32017788 A JP32017788 A JP 32017788A JP H02164933 A JPH02164933 A JP H02164933A
- Authority
- JP
- Japan
- Prior art keywords
- column
- steel
- cavity
- pile
- pillar
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 239000011440 grout Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は鉄骨建築架構の鉄骨柱をコンクリート場所打ち
杭の頭部に直接埋込む基礎工法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a foundation construction method in which steel columns of a steel building frame are directly embedded in the heads of concrete cast-in-place piles.
従来の杭打ち基礎においては、第６図に示すように、杭
５１の上にフーチング５４を設け、基礎梁（地中梁）５
３を設置して鉄骨柱５２を鉄筋コンクリートで固め、柱
脚の回転を拘束している。In the conventional piled foundation, as shown in FIG. 6, a footing 54 is provided on the pile 51, and the foundation beam (underground beam) 5
3 is installed and the steel column 52 is hardened with reinforced concrete to restrain the rotation of the column base.
この場合、基礎梁５３は柱脚に生じた曲げを負担し、回
転を止める役目と各鉄骨柱５２がバラバラに動くのを防
ぐ繋ぎ梁としての役目の２つ役割を有している。In this case, the foundation beam 53 has two roles: to bear the bending that occurs in the column base and to stop rotation, and as a connecting beam to prevent the steel columns 52 from moving apart.
鉄骨建築架構におけるこのような杭基礎と鉄骨柱の結合
方法としては、例えば特公昭６１−４４５８号公報記載
の定着法が知られており、鉄骨柱の脚部を基礎または地
中梁に定着させる場合において、基礎および地中梁のコ
ンクリート打設に際し、柱より若干大きめの孔を確保し
ておき、該孔に後から鉄骨柱柱脚部を埋込んでいる。As a method for connecting such a pile foundation and a steel column in a steel frame building frame, for example, the anchoring method described in Japanese Patent Publication No. 61-4458 is known, in which the legs of the steel column are anchored to the foundation or underground beam. In some cases, when pouring concrete for foundations and underground beams, a hole slightly larger than the column is secured, and the base of the steel column is later embedded into the hole.
上述した従来の杭打ち基礎においては、鉄骨柱と杭とは
直接接続されておらず、建築物の水平抵抗を基礎梁によ
り処理しているため、成の大きな地中梁を用いる必要が
ある。したがって、抗工事以外にも地中梁の構築に多大
な土工率、基礎工事を要し、工期が長引き、工費も高く
つくといった問題がある。In the conventional pile foundation described above, the steel columns and the piles are not directly connected, and the horizontal resistance of the building is handled by the foundation beams, so it is necessary to use underground beams with a large thickness. Therefore, in addition to the trench construction, the construction of underground beams requires a large amount of earthwork and foundation work, which leads to problems such as prolonging the construction period and increasing construction costs.
本発明は上述のような問題点に鑑み、１柱１杭基礎にお
いて、場所打ち杭と鉄骨柱とを一体化するための工法を
提供するべく、開発されたものである。The present invention was developed in view of the above-mentioned problems in order to provide a construction method for integrating cast-in-place piles and steel columns in a one-column, one-pile foundation.
本発明の工法では、鉄骨建築架構の１つの鉄骨柱に対し
７．１つのコンクリート場所打ち杭を設ける１柱１杭基
礎において、場所打ち杭のコンクリ−１〜の打設に際し
、ポリスチレン発泡体からなる空洞形成用のブロックを
利用するなどして、あらかし２め抗頭部に、柱脚部埋込
用の空洞を設けておき、この空洞に鉄骨柱柱脚部を建込
んだ後、モルタルまたはコンクリート等のグラウＩ・を
行い、鉄骨柱と場所打ち杭を一体化する。In the construction method of the present invention, in a 1-column, 1-pile foundation in which 7. one concrete cast-in-place pile is provided for one steel column of a steel-frame building frame, polystyrene foam is After creating a cavity for embedding the column base in the second column head by using a cavity forming block, etc., and erecting the steel column column base in this cavity, Apply mortar or concrete to integrate the steel columns and cast-in-place piles.
上記工法によれば、鉄骨柱と場所打ち杭とが一体化され
ることにより、地震時なとの水平外力が建物に作用した
際、柱脚に生ずる種々の力は杭へ直接伝達される。また
、杭の曲げ剛性および曲げ耐力は鉄骨柱のそれに比べ大
きいため、あえて基礎梁を設けることなく、柱下部に生
ずる曲げは直接杭の曲げに伝達し、柱下部の横移動は一
階の床スラブあるいは土間コンクリートで止める構造と
することもできる。なお、この場合床スラブあるいは土
間コンクリートは各柱脚相互を結ぶのみならず、摩擦に
より地面との一体化を図ることにもなり、構造上、有利
（安全側）となる。According to the above construction method, the steel columns and cast-in-place piles are integrated, so that when a horizontal external force such as during an earthquake acts on a building, various forces generated on the column bases are directly transmitted to the piles. In addition, since the bending rigidity and bending strength of piles are greater than those of steel columns, the bending that occurs at the bottom of the column is directly transmitted to the bending of the pile without purposely installing a foundation beam, and the lateral movement of the bottom of the column is It can also be constructed with a slab or earthen floor concrete. In this case, the floor slab or earthen floor concrete not only connects each column base to each other, but also integrates with the ground through friction, which is advantageous (on the safer side) from a structural standpoint.
次に、図示した実施例について説明する。 Next, the illustrated embodiment will be described.
第１実施例
第１図〜第３図は本発明の第１実施例を示したものであ
る。First Embodiment FIGS. 1 to 3 show a first embodiment of the present invention.
本実施例では、コンクリートを打設した場所打ら抗１の
頭部に、第２図に示すようにポリスチレン発泡体などか
らなる空洞形成用ブロック６を利用して、空洞４を設け
ておき、この空洞４に鉄骨柱２の柱脚を埋込み、モルタ
ルまたはコンクリ−１−などのグラウト材７をグラウト
することにより、鉄骨柱の柱脚を固定している。In this embodiment, a cavity 4 is provided in the head of the cast-in-place shaft 1 on which concrete has been poured, using a cavity-forming block 6 made of polystyrene foam or the like, as shown in FIG. The column base of the steel frame column 2 is embedded in this cavity 4, and the column base of the steel frame column 2 is fixed by grouting with a grout material 7 such as mortar or concrete.
図中、３は杭頭部の孔壁を保全するための鋼製ケーシン
グであり、ケーシング３の上端には８箇所にノツチ８が
設けられており、このノツチ８を利用してガイドフレー
ムを構成する井桁プレート９が取付けられ、上面にはア
ンカーボルト固定用の小プレート１０が溶接されている
。図中、１１は鉛直方向の杭筋、１２はフープ筋であり
、杭断面中央１一部には前述のように円柱状の空洞形成
用ブロック６を設置し、前記小プレート１０に建方用ア
ンカーボルト１３をセットした状態で、杭１のコンクリ
ートを打設する。なお、本実施例では杭１頭部のコンク
リートと同時に床スラブ５部分のコンクリートも打設す
ることとしており、床スラブ５にも杭１頭部の空洞４に
連続する凹部が形成されている。In the figure, 3 is a steel casing for preserving the hole wall of the pile head, and the upper end of the casing 3 has eight notches 8, and these notches 8 are used to construct the guide frame. A cross plate 9 is attached, and a small plate 10 for fixing anchor bolts is welded to the upper surface. In the figure, 11 is a vertical pile reinforcement, 12 is a hoop reinforcement, a cylindrical cavity forming block 6 is installed in a part of the center 1 of the pile cross section as described above, and the small plate 10 is used for erection. With the anchor bolts 13 set, concrete for the piles 1 is poured. In this embodiment, the concrete for the floor slab 5 is also poured at the same time as the concrete for the head of the pile 1, and the floor slab 5 is also formed with a concave portion that is continuous with the cavity 4 of the head of the pile 1.
抗１のコンクリートを打設後、空洞形成用ブロック６を
除去することにより、柱埋め込み用の空洞４が形成され
る。この空洞４は鉄骨柱２の芯ずれを吸収できるよう、
鉄骨柱２の外径より幾分大きく形成される。第１図およ
び第３図には鉄骨柱２の固定の様子か示されており、図
中、１４は柱固定プレート、１５はレベル調整モルタル
である。After pouring concrete with a resistance of 1, the cavity forming block 6 is removed to form a cavity 4 for embedding the column. This cavity 4 is designed to absorb the misalignment of the steel column 2.
It is formed somewhat larger than the outer diameter of the steel column 2. 1 and 3 show how the steel column 2 is fixed, and in the figures, 14 is a column fixing plate, and 15 is a level adjustment mortar.
これらにより、鉄骨柱２の高さと鉛直性を調節し、鉄骨
柱２を仮固定する。柱固定プレート１４のアンカーボル
ト挿通孔１６は第３図に示すようにルーズホールになっ
ており、鉄骨柱２の位置決めを容易にしている。With these, the height and verticality of the steel column 2 are adjusted, and the steel column 2 is temporarily fixed. The anchor bolt insertion holes 16 of the column fixing plate 14 are loose holes, as shown in FIG. 3, to facilitate positioning of the steel column 2.
上部架構の鉄骨建方完了後、前記空洞４およびこれに連
続する四部にモルタルなどのグラウト材７をグラウトし
、柱脚部を固定する。このようにして、場所打ち杭１、
鉄骨柱２および床スラブ５が一体化される。After the steel frame of the upper frame is erected, a grouting material 7 such as mortar is grouted into the cavity 4 and the four parts continuous thereto, and the column bases are fixed. In this way, cast-in-place pile 1,
Steel columns 2 and floor slabs 5 are integrated.
第２実施例
第４図および第５図は本発明の第２実施例を示したもの
である。Second Embodiment FIGS. 4 and 5 show a second embodiment of the present invention.
本実施例は上述の第１実施例とほぼ同様に施工されるも
のであり、アンカーボルト１３の代わりにボールインア
ンカーなどの仮止めアンカー１７を用いている。柱脚仮
固定用の固定プレート１４には鉄骨柱２の位置決めが容
易となるよう、あらかじめ柱芯線１８が描かれており、
また仮止めアンカー用の孔１９が設けられている。その
他は第１実施例と同様であり、鉄骨柱２ （角型鋼管）
は１階材脚付近（杭頭から１ｍ程度）で分割してあり、
上部の鉄骨柱２ａが溶接される。This embodiment is constructed in substantially the same manner as the first embodiment described above, and a temporary anchor 17 such as a ball-in anchor is used instead of the anchor bolt 13. A column core line 18 is drawn in advance on the fixing plate 14 for temporarily fixing the column base to facilitate positioning of the steel column 2.
A hole 19 for a temporary anchor is also provided. Others are the same as the first embodiment, steel column 2 (square steel pipe)
is divided near the first floor timber leg (approximately 1m from the pile cap).
The upper steel column 2a is welded.
■ 鉄骨柱と場所打ち杭とが一体化されることにより、
地震時などの水平外力により、柱脚に生ずる種々の力は
杭へ直接伝達され、杭の曲げ剛性をを効利用することが
できる。■ By integrating steel columns and cast-in-place piles,
Various forces generated on the column base due to horizontal external forces such as during an earthquake are directly transmitted to the pile, making it possible to effectively utilize the bending rigidity of the pile.
■ 基礎梁を設ける必要がなく、床スラブまたは土間コ
ンクリートを杭および柱と一体的に設けることにより、
各柱脚相互がバラバラに挙動することなく、安定した耐
力を発揮することができる。■ There is no need to install foundation beams, and by installing the floor slab or earthen concrete floor integrally with the piles and columns,
Each column pedestal does not behave inconsistently with respect to each other, and can exhibit stable strength.
■ 基礎梁が不要となることにより、基礎工事が簡略化
され、工期短縮および工費低減が図れる。■ By eliminating the need for foundation beams, foundation work can be simplified, shortening the construction period and reducing construction costs.
第１図は本発明の第１実施例を示す鉛直断面図、第２図
はその杭頭部の平面図、第３図は柱脚支持部の平面図、
第４図は本発明の第２実施例を示す鉛直断面図、第５図
はその柱脚支持部の平面図、第６図は従来例を示す鉛直
断面図である。
１・・・場所打ち杭、２・・・鉄骨柱、３・・・ケーシ
ング、４・・・空洞、５・・・床スラブ、６・・・空洞
形成用ブロック、７・・・グラウト材、８・・・ノツチ
、９・・・井桁プレート、１０・・・アンカーポルＩ・
固定用プレート、１１・・・杭筋、１２・・・フープ筋
、１３・・・アンカーボルト、１４・・・柱固定プレー
ｌ−１１５・・・レベル１１モルタル、１６・・・アン
カーボルト挿通孔、１７・・・仮止めアンカー、１８・
・・柱芯線、１９・・・仮止めアンカー用の孔FIG. 1 is a vertical sectional view showing the first embodiment of the present invention, FIG. 2 is a plan view of the pile head, and FIG. 3 is a plan view of the column base support.
FIG. 4 is a vertical sectional view showing a second embodiment of the present invention, FIG. 5 is a plan view of the column base support, and FIG. 6 is a vertical sectional view showing a conventional example. 1... Cast-in-place pile, 2... Steel column, 3... Casing, 4... Cavity, 5... Floor slab, 6... Block for cavity formation, 7... Grout material, 8... Notsuchi, 9... Igita plate, 10... Anchor Pol I.
Fixing plate, 11... Pile reinforcement, 12... Hoop reinforcement, 13... Anchor bolt, 14... Column fixing plate l-115... Level 11 mortar, 16... Anchor bolt insertion hole , 17...Temporary anchor, 18.
...Column core wire, 19...Hole for temporary anchor
Claims (1)
クリート場所打ち杭を設ける１柱１杭基礎において、前
記場所打ち杭の頭部に柱脚部埋込用の空洞を設け、該空
洞に鉄骨柱柱脚部を建込んだ後、グラウトにより前記場
所打ち杭と前記鉄骨柱とを一体化することを特徴とする
建築基礎工法。(1) In a one-column, one-pile foundation in which one concrete cast-in-place pile is provided for one steel column of a steel-frame building frame, a cavity for embedding the column base is provided in the head of the cast-in-place pile, and the cavity is 1. A building foundation construction method characterized by erecting a steel column column base and then integrating the cast-in-place pile and the steel column with grout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32017788A JPH02164933A (en) | 1988-12-19 | 1988-12-19 | Architecture foundation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32017788A JPH02164933A (en) | 1988-12-19 | 1988-12-19 | Architecture foundation construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02164933A true JPH02164933A (en) | 1990-06-25 |
Family
ID=18118554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32017788A Pending JPH02164933A (en) | 1988-12-19 | 1988-12-19 | Architecture foundation construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02164933A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09268567A (en) * | 1996-03-28 | 1997-10-14 | Nkk Corp | Joint structure of column and pile |
| JPH11172692A (en) * | 1997-12-16 | 1999-06-29 | Sato Benec Co Ltd | Execution of column constitution member |
| JP2011184954A (en) * | 2010-03-09 | 2011-09-22 | Kajima Corp | Construction method of pile head tension anchor reinforcement |
| JP2021507148A (en) * | 2017-12-16 | 2021-02-22 | エヌエックスティ アイピー プロプライエタリー リミテッドＮｘｔ Ｉｐ Ｐｔｙ Ｌｔｄ | Building system |
-
1988
- 1988-12-19 JP JP32017788A patent/JPH02164933A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09268567A (en) * | 1996-03-28 | 1997-10-14 | Nkk Corp | Joint structure of column and pile |
| JPH11172692A (en) * | 1997-12-16 | 1999-06-29 | Sato Benec Co Ltd | Execution of column constitution member |
| JP2011184954A (en) * | 2010-03-09 | 2011-09-22 | Kajima Corp | Construction method of pile head tension anchor reinforcement |
| JP2021507148A (en) * | 2017-12-16 | 2021-02-22 | エヌエックスティ アイピー プロプライエタリー リミテッドＮｘｔ Ｉｐ Ｐｔｙ Ｌｔｄ | Building system |
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