JP2800688B2 - Foundation method of building consisting of high-rise building and low-rise building - Google Patents
Foundation method of building consisting of high-rise building and low-rise buildingInfo
- Publication number
- JP2800688B2 JP2800688B2 JP16517494A JP16517494A JP2800688B2 JP 2800688 B2 JP2800688 B2 JP 2800688B2 JP 16517494 A JP16517494 A JP 16517494A JP 16517494 A JP16517494 A JP 16517494A JP 2800688 B2 JP2800688 B2 JP 2800688B2
- Authority
- JP
- Japan
- Prior art keywords
- rise building
- low
- building
- foundation
- rise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】この発明は、建物の自重によって
生ずる基礎梁の応力を低減するようにした建物の基礎工
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building foundation method for reducing the stress of a foundation beam caused by the weight of a building.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】一般
に、同一敷地内に高層棟と低層棟とを連接して構築する
場合、高層棟と低層棟の基礎は一体的に構築される。2. Description of the Related Art Generally, when a high-rise building and a low-rise building are connected and constructed on the same site, the foundations of the high-rise building and the low-rise building are integrally constructed.
【０００３】しかし、高層棟の自重は低層棟の自重にく
らべてはるかに大きいため、高層棟の基礎ばりと低層棟
の基礎ばりとを当初より一体に構築してしまうと、双方
の境付近に自重差による大きな応力が発生する。このた
め、基礎ばりを必要以上に補強する必要があった。However, since the weight of the high-rise building is much greater than the weight of the low-rise building, if the foundation beam of the high-rise building and the foundation beam of the low-rise building are constructed integrally from the beginning, it will be near the border between the two. A large stress is generated due to the difference in own weight. For this reason, it was necessary to reinforce the foundation beam more than necessary.
【０００４】また、この荷重差による応力の発生を防止
するために、この部分にエキスパンションジョイントと
することも考えられるが、止水性を保持する必要から簡
単には適応できない等の課題があった。In order to prevent the generation of stress due to the difference in load, an expansion joint may be used at this portion. However, there is a problem that it cannot be easily applied because it is necessary to maintain the water stoppage.
【０００５】この発明は、以上の課題を解決するために
なされたもので、高層棟の基礎と低層棟の基礎との境部
に生ずる応力の低減及び湧水の遮断を可能にした高層棟
と低層棟からなる建物の基礎工法を提供することを目的
とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a high-rise building capable of reducing stress generated at the boundary between the foundation of a high-rise building and the foundation of a low-rise building and blocking spring water. The purpose is to provide a foundation method for buildings consisting of low-rise buildings.
【０００６】[0006]
【課題を解決するための手段】この発明に係る高層棟と
低層棟からなる建物の基礎工法は、高層棟及び低層棟の
基礎スラブを連続して構築し、次に、この基礎スラブの
上に前記高層棟及びこの高層棟を支持する基礎ばりと、
前記低層棟及びこの低層棟を支持する基礎ばりとを構築
すると共に、前記高層棟の基礎ばりと前記低層棟の基礎
ばりとの境部に所定幅のスリットを設け、次に、前記ス
リットにコンクリートを打設して前記高層棟の基礎ばり
と前記低層棟の基礎ばりとを一体的に連続することを特
徴とするものである。According to the present invention, a foundation construction method for a high-rise building and a low-rise building according to the present invention comprises the steps of sequentially constructing a foundation slab of a high-rise building and a low-rise building, and then constructing the foundation slab on the foundation slab. Said high-rise building and a foundation beam supporting said high-rise building;
The low-rise building and a foundation beam supporting the low-rise building are constructed, and a slit having a predetermined width is provided at a boundary between the foundation beam of the high-rise building and the foundation beam of the low-rise building. And the foundation beam of the high-rise building and the foundation beam of the low-rise building are integrally and continuously connected.
【０００７】[0007]
【実施例】図１は、高層棟と低層棟とからなる建物の一
例を示し、図において、符号１と２は同一敷地内に連接
して構築された建物の高層棟と低層棟、３はこの高層棟
１の下端部に構築され、高層棟１を支持する高層棟の基
礎ばり、４は低層棟２の下端部に高層棟の基礎ばり３と
連続して構築され、低層棟２を支持する基礎ばり、そし
て、符号５は高層棟の基礎ばり３及び低層棟の基礎ばり
４の下端部に連続して構成され、高層棟の基礎ばり３及
び低層棟の基礎ばり４を介してそれぞれ作用する高層棟
１及び低層棟２の自重を地盤に伝える基礎スラブであ
る。FIG. 1 shows an example of a building consisting of a high-rise building and a low-rise building. In the drawing, reference numerals 1 and 2 denote a high-rise building and a low-rise building connected to one another on the same site. The base beam of the high-rise building, which is constructed at the lower end of this high-rise building 1 and supports the high-rise building 1, is built continuously with the base beam 3 of the high-rise building at the lower end of the low-rise building 2, supporting the low-rise building 2. The base beam 3 is formed continuously with the lower end of the base beam 3 of the high-rise building and the lower end of the base beam 4 of the low-rise building, and acts through the base beam 3 of the high-rise building and the base beam 4 of the low-rise building, respectively. This is a basic slab that transmits the weight of the high-rise building 1 and the low-rise building 2 to the ground.
【０００８】高層棟の基礎ばり３と低層棟の基礎ばり４
との境部には、コンクリートの打ち継ぎ部Ａが設けら
れ、この打ち継ぎ部Ａは高層棟１及び高層棟の基礎ばり
３、低層棟２及び低層棟の基礎ばり４の構築後、地盤の
自然沈下が充分に進行し、地盤が安定した後施工されて
いる。[0008] The foundation beam 3 of the high-rise building and the foundation beam 4 of the low-rise building
At the boundary between the two, a joint A of concrete is provided, and this joint A is formed on the foundation beam 3 of the high-rise building 1 and the high-rise building, the foundation beam 4 of the low-rise building 2 and the low-rise building, and The work is being carried out after natural settlement has sufficiently progressed and the ground has stabilized.
【０００９】続いて、この発明に係る高層棟と低層棟と
からなる建物の基礎工法を順を追って説明する（図２〜
図４参照）。Next, a basic construction method for a building comprising a high-rise building and a low-rise building according to the present invention will be described step by step (FIG. 2).
(See FIG. 4).
【００１０】 最初に、基礎スラブ５を構築する。基
礎スラブ５は高層棟１及び低層棟２の双方に連続して構
築するものとし、また、基礎スラブ５の厚みＤは地下水
の水圧の大きさに応じて適宜決めるものとする。First, a base slab 5 is constructed. The foundation slab 5 is to be constructed continuously in both the high-rise building 1 and the low-rise building 2, and the thickness D of the foundation slab 5 is appropriately determined according to the magnitude of the groundwater pressure.
【００１１】 次に、高層棟の基礎ばり３と低層棟の
基礎ばり４とを構築する。この場合、高層棟の基礎ばり
３と低層棟の基礎ばり４との境部には、コンクリートを
打設せず、双方に配筋される補強鉄筋６のみを連続して
配筋して所定幅のスリットＢを形成しておく（図2,3 参
照）。Next, a foundation beam 3 of a high-rise building and a foundation beam 4 of a low-rise building are constructed. In this case, concrete is not cast at the boundary between the foundation beam 3 of the high-rise building and the foundation beam 4 of the low-rise building, and only reinforcing reinforcing bars 6 arranged on both sides are continuously arranged to a predetermined width. (See FIGS. 2 and 3).
【００１２】スリットＢの開きＷは、作業員が中に入っ
て作業ができる程度のスペースを考慮し、少なくとも50
0mm 程度確保する。The opening W of the slit B should be at least 50 in consideration of a space in which a worker can enter and work.
Secure about 0mm.
【００１３】また、スリットＢに面する基礎ばり３の打
ち継ぎ面3a及び基礎ばり４の打ち継ぎ面4aには、複数本
の補強鉄筋を水平に添え付けて力骨７とし、かつ、その
上にラス金網等の金網類８を添え付け、更に、左右両サ
イドにアングル材等からなる桟木９を添え付ける等して
養生しておく（図３参照）。A plurality of reinforcing steel bars are horizontally attached to the joint surface 3a of the base beam 3 facing the slit B and the joint surface 4a of the base beam 4 to form a force bone 7, and furthermore, A wire netting 8 such as a lath wire netting is attached thereto, and furthermore, a pier 9 made of an angle material or the like is attached to both left and right sides for curing (see FIG. 3).
【００１４】 次に、高層棟の基礎ばり３及び低層棟
の基礎ばり４の上に、それぞれ高層棟１及び低層棟２を
それぞれ構築する。Next, a high-rise building 1 and a low-rise building 2 are respectively constructed on the base beam 3 of the high-rise building and the base beam 4 of the low-rise building.
【００１５】この場合、高層棟１の自重による沈下量
は、最大20〜50mm程度あり、これに伴う高層棟１と低層
棟２との相対変形量は２〜３mm程度になり、この程度の
変形量でも、高層棟１及び低層棟２のはり等の構造部材
の剛性が高いと、高層棟１及び低層棟２の構造部材にも
沈下に伴う強制応力が発生すると考えられるが、高層棟
１及び低層棟２の構造部材は、基礎ばり３及び４のそれ
に比べてはるかに小さいので、基礎ばりのような措置は
特に必要ない。In this case, the amount of subsidence of the high-rise building 1 due to its own weight is about 20 to 50 mm at the maximum, and the relative deformation between the high-rise building 1 and the low-rise building 2 is about 2 to 3 mm. If the structural members such as the beams of the high-rise building 1 and the low-rise building 2 have high rigidity, the structural members of the high-rise building 1 and the low-rise building 2 are considered to generate forced stress due to settlement. Since the structural members of the low-rise building 2 are much smaller than those of the foundation beams 3 and 4, measures such as foundation beams are not particularly necessary.
【００１６】それでも、高層棟１と低層棟２との境部に
耐震壁等が配置され、剛性が相当大きくなると予想され
る場合には、高層棟１の構造部材と低層棟２の構造部材
との間にエヤタイト等を使用したエキスパンションジョ
イントを設けたりする等の措置を講ずるものとする。Nevertheless, when a seismic wall or the like is arranged at the boundary between the high-rise building 1 and the low-rise building 2 and the rigidity is expected to be considerably large, the structural members of the high-rise building 1 and the structural members of the low-rise building 2 are required. Measures such as providing an expansion joint using an eatite or the like.
【００１７】 次に、高層棟１及び低層棟２の地盤が
充分に沈下し、安定したら高層棟の基礎ばり３と低層棟
の基礎ばり４とのスリットＢにコンクリートを打設して
基礎ばり３と基礎ばり４とを一体に連続させる。Next, when the grounds of the high-rise building 1 and the low-rise building 2 are sufficiently settled and stabilized, concrete is poured into the slit B between the base beam 3 of the high-rise building and the base beam 4 of the low-rise building, and the foundation beam 3 And the base beam 4 are continuously formed integrally.
【００１８】[0018]
【発明の効果】この発明に係る高層棟と低層棟とからな
る建物の基礎工法は、以上説明したように構成され、高
層棟の基礎ばりと低層棟の基礎ばりとの境部に打ち継ぎ
部を設け、この打ち継ぎ部を高層棟及び低層棟の施工
後、高層棟及び低層棟の地盤が充分に沈下し、地盤が安
定してから施工するので、高層棟の基礎ばりと低層棟の
基礎ばりとの境部に地盤沈下に伴う強制応力が発生する
のを防止することができ、従って、高層棟の基礎ばりと
低層棟の基礎ばりとの境部を特に補強する必要がなく、
他の部分と同じように施工することができるので、施工
性の向上が図れる効果がある。According to the present invention, the foundation method for a building composed of a high-rise building and a low-rise building is constructed as described above, and a joint is formed at the boundary between the foundation beam of the high-rise building and the foundation beam of the low-rise building. After the construction of the high-rise building and the low-rise building, the ground of the high-rise building and the low-rise building have sufficiently subsided and the ground has been stabilized. It is possible to prevent the occurrence of forced stress due to land subsidence at the boundary with the beam, and therefore it is not necessary to reinforce the boundary between the foundation beam of the high-rise building and the foundation beam of the low-rise building.
Since it can be constructed in the same manner as the other parts, there is an effect that the workability can be improved.
【００１９】また、高層棟の基礎スラブと低層棟の基礎
スラブは連続して一体に構築するので、地下水の湧水も
完全に遮断できる効果がある。Further, since the foundation slab of the high-rise building and the foundation slab of the low-rise building are continuously and integrally constructed, there is an effect that the spring of the groundwater can be completely shut off.
【図１】高層棟と低層棟とからなる建物の一例を示す一
部側面図である。FIG. 1 is a partial side view showing an example of a building including a high-rise building and a low-rise building.
【図２】高層棟の基礎ばりと低層棟の基礎ばりとの境部
を示す基礎ばりの一部縦断面図である。FIG. 2 is a partial longitudinal sectional view of a foundation beam showing a boundary between a foundation beam of a high-rise building and a foundation beam of a low-rise building.
【図３】図２におけるａ−ａ線断面図である。FIG. 3 is a sectional view taken along line aa in FIG. 2;
【図４】高層棟の基礎ばりと低層棟の基礎ばりとの境部
の施工方法を示す基礎ばりの縦断面図である。 １…高層棟、２…低層棟、３…高層棟の基礎ばり、４…
低層棟の基礎ばり、５…基礎スラブ、６…補強鉄筋、７
…力骨、８…金網類、９…桟木。FIG. 4 is a longitudinal sectional view of a foundation beam showing a construction method at a boundary between a foundation beam of a high-rise building and a foundation beam of a low-rise building. 1 ... high-rise building 2 ... low-rise building 3 ... foundation beam of high-rise building 4 ...
Base beam of low-rise building, 5: Foundation slab, 6: Reinforcing bar, 7
… Power bone, 8… wire mesh, 9… pier.
フロントページの続き (72)発明者 深田 良雄 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 河口 喜雄 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 27/32 E02D 27/00Continued on the front page (72) Inventor Yoshio Fukada Kashima Construction Co., Ltd. 1-2-7 Moto-Akasaka, Minato-ku, Tokyo (72) Inventor Yoshio Kawaguchi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. In-company (58) Field surveyed (Int.Cl. 6 , DB name) E02D 27/32 E02D 27/00
Claims (1)
法において、高層棟及び低層棟の基礎スラブを連続して
構築し、次に、この基礎スラブの上に前記高層棟及びこ
の高層棟を支持する基礎ばりと、前記低層棟及びこの低
層棟を支持する基礎ばりとを構築すると共に、前記高層
棟の基礎ばりと前記低層棟の基礎ばりとの境部に所定幅
のスリットを設け、次に、前記スリットにコンクリート
を打設して前記高層棟の基礎ばりと前記低層棟の基礎ば
りとを一体的に連続することを特徴とする高層棟と低層
棟とからなる建物の基礎工法。In a foundation method for a building consisting of a high-rise building and a low-rise building, foundation slabs of a high-rise building and a low-rise building are continuously constructed, and then the high-rise building and the high-rise building are placed on the foundation slab. And a base beam supporting the low-rise building and the low-rise building, and a slit having a predetermined width is provided at a boundary between the high-rise building base beam and the low-rise building base beam. Next, a foundation construction method for a building comprising a high-rise building and a low-rise building, wherein concrete is poured into the slit and the foundation beam of the high-rise building and the foundation beam of the low-rise building are continuously connected integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16517494A JP2800688B2 (en) | 1994-07-18 | 1994-07-18 | Foundation method of building consisting of high-rise building and low-rise building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16517494A JP2800688B2 (en) | 1994-07-18 | 1994-07-18 | Foundation method of building consisting of high-rise building and low-rise building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0827809A JPH0827809A (en) | 1996-01-30 |
| JP2800688B2 true JP2800688B2 (en) | 1998-09-21 |
Family
ID=15807265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16517494A Expired - Lifetime JP2800688B2 (en) | 1994-07-18 | 1994-07-18 | Foundation method of building consisting of high-rise building and low-rise building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2800688B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5414514B2 (en) * | 2009-12-24 | 2014-02-12 | 株式会社竹中工務店 | Base structure and base-isolated structure with the base structure |
| JP6655936B2 (en) * | 2015-10-07 | 2020-03-04 | 株式会社竹中工務店 | Construction method of structure |
| JP6938197B2 (en) * | 2017-04-18 | 2021-09-22 | 株式会社竹中工務店 | Construction method |
-
1994
- 1994-07-18 JP JP16517494A patent/JP2800688B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827809A (en) | 1996-01-30 |
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