JPH07292690A - Seismic isolation coupling structure between foundation pile and foundation structure - Google Patents
Seismic isolation coupling structure between foundation pile and foundation structureInfo
- Publication number
- JPH07292690A JPH07292690A JP11390194A JP11390194A JPH07292690A JP H07292690 A JPH07292690 A JP H07292690A JP 11390194 A JP11390194 A JP 11390194A JP 11390194 A JP11390194 A JP 11390194A JP H07292690 A JPH07292690 A JP H07292690A
- Authority
- JP
- Japan
- Prior art keywords
- foundation
- seismic isolation
- foundation pile
- pile
- isolation device
- 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]
【産業上の利用分野】本発明は、コンクリート製や鋼管
製等の基礎杭と基礎構造物との免震結合構造に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation connecting structure of a foundation pile made of concrete or steel pipe and a foundation structure.
【０００２】[0002]
【従来の技術】建物における地震対策の一つとして、建
物本体である上部構造物を基礎構造物に対して免震支持
することが行われている。この免震支持構造は、一般的
に、例えば図４に示すような構造が採用されている。す
なわち、基礎杭Ａの頭部に多数のアンカ−筋14,14 を突
出させてフ−チングＣを形成し、これを介して基礎構造
物Ｄと結合する。そして、このフ−チングＣ上に弾性板
３，３の積層による免震装置Ｂを設置して、その上に上
部構造物の支持躯体Ｆを支持するようにしている。2. Description of the Related Art As one of measures against earthquakes in a building, an upper structure, which is a main body of the building, is seismically supported with respect to a foundation structure. This seismic isolation support structure generally employs a structure as shown in FIG. 4, for example. That is, a large number of anchor streaks 14, 14 are projected on the head of the foundation pile A to form a footing C, and the footing C is connected to the foundation structure D via the footing C. Then, a seismic isolation device B by laminating elastic plates 3 and 3 is installed on this footing C, and a supporting frame F of the upper structure is supported thereon.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の免震構造
は、基礎杭Ａと基礎構造物Ｄとの結合構造の点では、従
来普通の建物におけると同様であるが、上部構造物は免
震装置Ｂを介して支持されるため、上部構造物の下端部
は、基礎構造物Ｄと同様の重構造の支持躯体Ｆとしなけ
ればならず、したがって、多額の費用を要することにな
る。The above-described conventional seismic isolation structure is similar to the conventional ordinary building in terms of the connection structure of the foundation pile A and the foundation structure D, but the upper structure is seismic isolation. Since it is supported via the device B, the lower end of the superstructure must be a supporting structure F having the same heavy structure as the substructure D, and thus a large amount of cost is required.
【０００４】また、基礎杭Ａの頭部は基礎構造物Ｄと一
体的な剛結合となっているので、地震等による水平力を
受けた際に充分対抗できないという欠点を有しており、
免震構造の効果を発揮するためには、基礎杭Ａの径を大
にしたり、埋設本数を多くする必要が生じ、この点の経
費の大巾な増大がともなうことになるという問題があ
る。Further, since the head of the foundation pile A is integrally rigidly connected to the foundation structure D, it has a drawback that it cannot sufficiently oppose a horizontal force due to an earthquake or the like.
In order to bring out the effect of the seismic isolation structure, it is necessary to increase the diameter of the foundation pile A and increase the number of buried piles, which causes a problem that the cost at this point is greatly increased.
【０００５】本発明は、上記従来の問題点を解決するた
めになされたもので、基礎杭の頭部と基礎構造物とを免
震装置を介して結合することにより、建物の免震構造費
用の軽減と、基礎杭への水平力の作用を抑制することの
できるようにした免震結合構造を提供しようとするもの
である。The present invention has been made to solve the above-mentioned conventional problems, and the cost of the seismic isolation structure of a building is improved by connecting the head of the foundation pile and the foundation structure through a seismic isolation device. The purpose of the present invention is to provide a seismic isolation connection structure capable of reducing the load and suppressing the action of horizontal force on the foundation pile.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めの本発明の構成について、実施例に対応する図面を参
照して説明すると、本発明は、頭端を地中の所要深さま
で挿入した基礎杭Ａの頭端に、高減衰積層ゴム３を一対
の座板５，６で緊締した免震装置Ｂを結合するととも
に、この免震装置Ｂと結合してその上にフ−チングＣを
形成し、このフ−チングＣに支持して基礎構造物Ｄを構
築したことを特徴とするものである。The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. According to the present invention, the head end is inserted to a required depth in the ground. A seismic isolation device B in which a high-damping laminated rubber 3 is tightened with a pair of seat plates 5 and 6 is connected to the head end of the foundation pile A, and the footing C is attached to the seismic isolation device B. Is formed, and the foundation structure D is constructed by supporting the footing C.
【０００７】[0007]
【作用】本発明は、上記のように、基礎杭Ａとフ−チン
グＣ、基礎構造物Ｄとが免震装置Ｂを介して結合した構
造となっているので、地震等により基礎杭Ａに大きな水
平力が作用した場合、その力は免震装置Ｂによって緩衝
され基礎構造物Ｄに伝達されることになる。しかも、免
震装置Ｂの周囲は地盤Ｅに接しているため、地盤Ｅの弾
性も加わって２重の減衰作用が奏されることになり、建
物の免震と基礎杭Ａ頭部の過大な応力の発生が抑制され
ることになる。As described above, the present invention has a structure in which the foundation pile A, the footing C, and the foundation structure D are connected via the seismic isolation device B as described above. When a large horizontal force is applied, the force is buffered by the seismic isolation device B and transmitted to the substructure D. Moreover, since the periphery of the seismic isolation device B is in contact with the ground E, the elasticity of the ground E is also added, and a double damping action is exerted. Generation of stress will be suppressed.
【０００８】[0008]
【実施例】以下、本発明の実施例について説明する。図
１は本発明一実施例を示した縦断面図で、Ａは基礎杭、
Ｂは免震装置、Ｃはフ−チング、Ｄは基礎構造物であ
る。EXAMPLES Examples of the present invention will be described below. FIG. 1 is a vertical sectional view showing an embodiment of the present invention, in which A is a foundation pile,
B is a seismic isolation device, C is a footing, and D is a substructure.
【０００９】基礎杭Ａは、中空コンクリ−トの既製杭が
使用され、その上端には軸鉄筋２の一端を止着した端板
１が設けられている。この基礎杭Ａは、その端板１が地
中の所要深さ位置となる状態で地中に挿入される。そし
て、この基礎杭Ａの頭端には、端板１に結合して免震装
置Ｂが設けられる。As the foundation pile A, a hollow concrete ready-made pile is used, and an end plate 1 to which one end of a shaft reinforcing bar 2 is fastened is provided at the upper end thereof. The foundation pile A is inserted into the ground in a state where the end plate 1 is at a required depth position in the ground. Then, at the head end of the foundation pile A, a seismic isolation device B is provided which is connected to the end plate 1.
【００１０】免震装置Ｂは、中心部にボルト貫通孔４を
設けた、基礎杭Ａとほぼ同径の高減衰積層ゴム３を、同
じく中心部にボルト貫通孔７を設けた一対の座板５，６
で挟み、ボルト貫通孔４，７，７を通した締付ボルト８
とナット９により緊締した構造のもので、一方の座板５
を基礎杭Ａの端板１に結合して取り付けられる。The seismic isolation device B has a pair of seat plates in which a high-damping laminated rubber 3 having a bolt through hole 4 in the central portion and having a diameter substantially the same as that of the foundation pile A and a bolt through hole 7 in the central portion are also provided. 5,6
Tightening bolt 8 which is sandwiched between and passed through the bolt through holes 4, 7, 7.
With a structure tightened with a nut 9 and one seat plate 5
Is attached to the end plate 1 of the foundation pile A.
【００１１】この端板１と座板５の結合は、本実施例の
場合、図２、図３に示すように、端板１には、軸鉄筋２
掛止孔10に臨接して、基礎杭Ａの製造時に型枠に止着す
るネジ孔11が、周方向に沿って多数設けられていること
から、座板５に、ネジ孔11,11 に対応したボルト孔12,1
2 を設け、締着ボルト13,13 をネジ孔11,11 に締め込ん
でやるのがよい。この場合、免震装置Ｂは、座板５を端
板１にネジ止めした後高減衰積層ゴム３と座板６を載せ
てボルト８、ナット９により緊締して形成される。な
お、端板１と座板５とは、上記のようにネジ止めによら
ず、溶接により結合することも可能である。In the case of this embodiment, the end plate 1 and the seat plate 5 are connected to each other as shown in FIG. 2 and FIG.
Since a large number of screw holes 11 are provided along the circumferential direction so as to be in contact with the hook holes 10 and to be fixed to the form at the time of manufacturing the foundation pile A, the seat plate 5 has screw holes 11 and 11. Corresponding bolt hole 12,1
It is better to provide 2 and tighten the fastening bolts 13 and 13 into the screw holes 11 and 11. In this case, the seismic isolation device B is formed by fastening the seat plate 5 to the end plate 1 and then mounting the high damping laminated rubber 3 and the seat plate 6 and tightening them with bolts 8 and nuts 9. The end plate 1 and the seat plate 5 can be joined by welding instead of screwing as described above.
【００１２】また、基礎杭Ａとしては鋼管杭を使用する
こともできる。この場合は、免震装置Ｂの座板５を鋼管
杭の頭に直接或は補強材等を介して溶接により結合する
のがよい。A steel pipe pile can also be used as the foundation pile A. In this case, it is preferable that the seat plate 5 of the seismic isolation device B is connected to the head of the steel pipe pile by welding, directly or through a reinforcing material.
【００１３】基礎杭Ａと結合した免震装置Ｂの他方の座
板６には、多数のアンカ−筋14,14を上方に向け放射状
に突出させて溶接により固着する。そして、免震装置Ｂ
の上端部まで掘り下げた拡大穴15内にコンクリ−ト16を
打設して、免震装置Ｂより大径のフ−チングＣを地表上
に若干露出して形成する。On the other seat plate 6 of the seismic isolation device B connected to the foundation pile A, a large number of anchor bars 14, 14 are radially projected upward and fixed by welding. And seismic isolation device B
The concrete 16 is placed in the enlarged hole 15 dug down to the upper end of the base to form a footing C having a diameter larger than that of the seismic isolation device B so as to be slightly exposed on the ground surface.
【００１４】フ−チングＣには建物の基礎構造物Ｄが結
合して構築される。すなわち、基礎構造物Ｄのスラブコ
ンクリ−ト17が地表からフ−チングＣの上面までの厚さ
に打設され、その上に基礎構造物Ｄの主体をなす縦横の
基礎梁18,18 がフ−チングＣ上に交差するようにして構
築され、その際、その交差部分は、建物の上部躯体の支
柱20を取り付けるに必要な横断面を有する基礎柱体21に
形成するのが望ましい。The footing C is constructed by connecting a building substructure D. That is, the slab concrete 17 of the substructure D is cast to a thickness from the ground surface to the upper surface of the footing C, and the vertical and horizontal foundation beams 18 and 18, which are the main components of the substructure D, are mounted thereon. -Constructed in such a way that they intersect on the ching C, the intersections preferably being formed in a foundation column 21 having the cross section necessary to mount the columns 20 of the upper building frame.
【００１５】基礎杭Ａの上に免震装置Ｂを結合し、フ−
チングＣを形成するには、基礎杭Ａを地中に挿入した
後、基礎杭Ａの頭部が露出するまで周囲の地盤を掘り下
げて免震装置Ｃを結合し、その回りに土を埋め戻し、フ
−チングＣを形成する地盤を取り除いて、座板６にアン
カ−筋を溶接し、コンクリ−ト16を打設すればよい。こ
の場合、基礎杭Ａの挿入深さに不揃いの生じた際は、免
震装置Ｂの高減衰積層ゴム３の厚さを変えることによっ
てフ−チングＣまでの距離を調節することができる。し
たがって従来繁雑であった杭頭処理作業が不要となる。The seismic isolation device B is connected to the foundation pile A, and
In order to form the tie C, after inserting the foundation pile A into the ground, the surrounding ground is dug down until the head of the foundation pile A is exposed, the seismic isolation device C is coupled, and the soil is backfilled around it. , The ground forming the footing C may be removed, an anchor line may be welded to the seat plate 6, and the concrete 16 may be placed. In this case, when the insertion depth of the foundation pile A is uneven, the distance to the footing C can be adjusted by changing the thickness of the high damping laminated rubber 3 of the seismic isolation device B. Therefore, the pile head processing work, which was conventionally complicated, becomes unnecessary.
【００１６】[0016]
【発明の効果】以上説明したように、本発明は、基礎杭
とフ−チング、基礎構造物とが免震装置を介して弾性的
に結合されているので、地盤の発生等により基礎杭や基
礎構造物に大きな水平力が作用しても、互いに免震装置
によって緩衝され、建物や基礎杭への影響を抑制するこ
とができる。しかも、免震装置の周囲は地盤と接してい
るので、地盤の弾性と合わせて２重の好ましい減衰効果
が発揮される。As described above, according to the present invention, since the foundation pile, the footing, and the foundation structure are elastically coupled to each other through the seismic isolation device, the foundation pile or Even if a large horizontal force is applied to the foundation structure, they are mutually buffered by the seismic isolation device, and the influence on the building and foundation piles can be suppressed. Moreover, since the periphery of the seismic isolation device is in contact with the ground, a dual preferable damping effect is exhibited together with the elasticity of the ground.
【００１７】また、基礎杭と基礎構造とは免震装置を介
して直接的に結合されているので、免震構造費用が軽減
されることになるとともに、基礎杭頭部への水平力が緩
衝されることから、基礎杭費用の増大も軽減されること
になる。また、免震装置は高減衰積層ゴムと座板とがボ
ルト・ナットにより強固に結合されており、そして座板
を介して基礎杭とフ−チングとに一体的に結合されてい
るので、大きな引き抜き力が作用してもそれに対抗する
ことができる。更に、挿入した基礎杭の不揃いとなる頭
部は、免震装置の高減衰積層ゴムの厚さを変えることに
よって揃えることができ、したがって、杭頭処理の繁雑
な作業が不要となり、それだけ経費の削減が図れる。Further, since the foundation pile and the foundation structure are directly connected through the seismic isolation device, the cost of the seismic isolation structure is reduced and the horizontal force on the head of the foundation pile is buffered. As a result, the increase in foundation pile cost will be reduced. In addition, the seismic isolation device has a large damping rubber and seat plate that are firmly connected by bolts and nuts, and is integrally connected to the foundation pile and footing through the seat plate. Even if the pulling force acts, it can counteract it. Furthermore, the uneven heads of the inserted foundation piles can be aligned by changing the thickness of the high-damping laminated rubber of the seismic isolation device, thus eliminating the need for the complicated work of pile head treatment, thus reducing the cost. Reduction can be achieved.
【００１８】なお、基礎杭に従来一般に用いられている
コンクリ−ト製の杭を使用した場合は、その端板に設け
られているネジ孔を利用して溶接することなく免震装置
の取り付けができ、施工が一層容易、確実に行えること
になる。When a concrete pile that has been generally used in the past is used as the foundation pile, the seismic isolation device can be mounted without welding by using the screw holes provided in the end plate. It can be done more easily and reliably.
【図１】本発明の一実施例を示す縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of the present invention.
【図２】同基礎杭の端板の要部を示す拡大平面図であ
る。FIG. 2 is an enlarged plan view showing a main part of an end plate of the foundation pile.
【図３】同基礎杭の端板と座板との結合例を示す縦断面
図である。FIG. 3 is a vertical cross-sectional view showing an example of connection between an end plate and a seat plate of the foundation pile.
【図４】従来の免震構造を示す縦断面図である。FIG. 4 is a vertical sectional view showing a conventional seismic isolation structure.
Ａ 基礎杭 Ｂ 免震装置 Ｃ フ−チング Ｄ 基礎構造物 Ｅ 地盤 １ 端板 ２ 軸鉄筋 ３ 高減衰積層ゴム ５、６ 座板 ８ ボルト ９ ナット 11 ネジ孔 13 締着ボルト 14 アンカ−筋 16 コンクリ−ト 18 基礎梁 20 支柱 A Foundation pile B Seismic isolation device C Footing D Foundation structure E Ground 1 End plate 2 Axis rebar 3 High damping laminated rubber 5, 6 Seat plate 8 Bolt 9 Nut 11 Screw hole 13 Fastening bolt 14 Anchor bar 16 Concrete − G 18 foundation beams 20 columns
Claims (1)
減衰積層ゴムを一対の座板で緊締した免震装置を結合す
るとともに、この免震装置と結合してその上にフ−チン
グを形成し、このフ−チングに支持して基礎構造物を構
築したことを特徴とする、基礎杭と基礎構造物との免震
結合構造。A seismic isolation device, in which high-damping laminated rubber is tightened with a pair of seat plates, is connected to the head end of the foundation pile with the head end inserted to the required depth in the ground. -A seismically isolated connection structure of a foundation pile and a foundation structure, which is characterized in that a foundation is constructed by supporting the footing by forming a retaining structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11390194A JP3461198B2 (en) | 1994-04-28 | 1994-04-28 | Base-isolated connection structure between foundation pile and foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11390194A JP3461198B2 (en) | 1994-04-28 | 1994-04-28 | Base-isolated connection structure between foundation pile and foundation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07292690A true JPH07292690A (en) | 1995-11-07 |
| JP3461198B2 JP3461198B2 (en) | 2003-10-27 |
Family
ID=14624006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11390194A Expired - Fee Related JP3461198B2 (en) | 1994-04-28 | 1994-04-28 | Base-isolated connection structure between foundation pile and foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3461198B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099951A (en) * | 2014-07-23 | 2014-10-15 | 上海康业建筑装饰工程有限公司 | Foundation damping and soundproof strengthening system of protective building |
| JP2019112788A (en) * | 2017-12-21 | 2019-07-11 | 株式会社竹中工務店 | Foundation structure and construction method thereof |
-
1994
- 1994-04-28 JP JP11390194A patent/JP3461198B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099951A (en) * | 2014-07-23 | 2014-10-15 | 上海康业建筑装饰工程有限公司 | Foundation damping and soundproof strengthening system of protective building |
| JP2019112788A (en) * | 2017-12-21 | 2019-07-11 | 株式会社竹中工務店 | Foundation structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3461198B2 (en) | 2003-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8336267B2 (en) | Construction frame shear lug | |
| JPH08170340A (en) | Pedestal structure and method of pedestal construction | |
| JP3316134B2 (en) | Supporting device for building outer wall and method of seismic isolation of building outer wall | |
| JP4693299B2 (en) | Column base connection structure | |
| KR20200068205A (en) | Seismic retrofit using strand and length adjustable truss | |
| JP4346044B2 (en) | Slope stabilizer | |
| JPH07292690A (en) | Seismic isolation coupling structure between foundation pile and foundation structure | |
| JP3362809B2 (en) | Pillar support device | |
| JP5325709B2 (en) | Method of constructing steel exposed column base structure | |
| JP2979114B2 (en) | Existing foundation structure reinforcement method | |
| JP3612600B2 (en) | Unit anchor and structural steel foundation beam | |
| JP3648646B2 (en) | Structure liquefaction countermeasure structure | |
| JP3806499B2 (en) | Compound seismic isolation device (support and shock absorber, combined use) | |
| JP3233260B2 (en) | Anchoring structure of anchor material on steel column base | |
| JP2878800B2 (en) | Anchor bolt fixing device | |
| JP3838472B2 (en) | Exposed column base construction method | |
| JP3702322B2 (en) | Anchor bolt installation structure | |
| JP3118207B2 (en) | Construction method of pile column top level adjustment structure in building structure using pile as pillar | |
| KR102616443B1 (en) | Membrane Structure Steel Pipe Connection Assembly | |
| JP2001254532A (en) | Mounting structure and mounting method of seismic isolator | |
| JP3871549B2 (en) | Hole down position adjustment hardware | |
| JP2001164581A (en) | Foundation construction for building | |
| JP2570085B2 (en) | Anchor bolt construction method | |
| JP2001214637A (en) | Vibration control structure of building structure | |
| JP3261526B2 (en) | Anchor frame for steel pier and footing using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070815 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080815 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090815 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |