JP2950325B1 - Construction method of seismic isolation building - Google Patents

Construction method of seismic isolation building

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Publication number
JP2950325B1
JP2950325B1 JP14421298A JP14421298A JP2950325B1 JP 2950325 B1 JP2950325 B1 JP 2950325B1 JP 14421298 A JP14421298 A JP 14421298A JP 14421298 A JP14421298 A JP 14421298A JP 2950325 B1 JP2950325 B1 JP 2950325B1
Authority
JP
Japan
Prior art keywords
seismic isolation
isolation device
pillar
construction
trussed
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
Application number
JP14421298A
Other languages
Japanese (ja)
Other versions
JPH11336095A (en
Inventor
克己 中山
匠二 富田
滋 吉貝
公俊 佐野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
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Filing date
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Abstract

【要約】 【課題】 免震建物の施工において、下部構造の構築と
上部構造の構築を独立させ、下部構造の構築終了を待た
ずに上部構造の構築を開始することを可能にし、工期の
短縮を図る。 【解決手段】 免震建物の外周位置に山留め壁1を構築
する一方、免震建物の柱の下方位置に構真柱3を支持す
る構真台柱2を構築し、その硬化前に、構真台柱2内に
構真柱3を挿入し、構真柱3を利用して免震装置4の設
置と上部構造5の最下部の躯体の構築を先行させる。
Abstract: [PROBLEMS] In construction of a base-isolated building, the construction of a substructure and the construction of a superstructure are made independent, enabling the construction of the superstructure to be started without waiting for the completion of the construction of the substructure, thereby shortening the construction period. Plan. SOLUTION: While a mountain retaining wall 1 is constructed at an outer peripheral position of a seismic isolation building, a truss pillar 2 for supporting a truss pillar 3 is constructed at a position below a pillar of the seismic isolation building. The trussed pillar 3 is inserted into the pedestal 2, and the installation of the seismic isolation device 4 and the construction of the lowermost frame of the upper structure 5 are preceded by using the trussed pillar 3.

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】この発明は上部構造が免震装
置で支持される免震建物の施工方法に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a base-isolated building whose upper structure is supported by a base-isolation device.

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】上部構
造が免震装置で支持される免震建物の施工は、建物の施
工対象地盤を根切りし、杭の構築と下部構造の構築が完
了した後に、下部構造上に免震装置を設置し、上部構造
を構築する、という要領で行われるが、根切りが終了す
るまで下部構造の構築を開始できず、下部構造の構築が
終了するまで上部構造の構築を開始できないため、建物
の完成には各工事に要する期間を加えただけの工期を必
要とする。
2. Description of the Related Art In the construction of a base-isolated building in which the upper structure is supported by seismic isolation devices, the construction target of the building is cut off, the construction of piles and the construction of the lower structure are completed. After that, the seismic isolation device is installed on the lower structure and the upper structure is constructed, but the construction of the lower structure can not be started until the excavation is completed, and until the construction of the lower structure is completed Since the construction of the superstructure cannot be started, the completion of the building requires a construction period that is the same as the period required for each construction.

【0003】この発明は上記背景より、工期の短縮を可
能にする免震建物の施工方法を提案するものである。
[0003] In view of the above background, the present invention proposes a method of constructing a base-isolated building that can shorten the construction period.

【0004】[0004]

【課題を解決するための手段】本発明では逆打ち工法に
より構真柱を設置し、構真柱を利用して免震装置の設置
と上部構造の最下部の躯体の構築を先行させることによ
り、下部構造の構築と上部構造の構築を独立させ、下部
構造の構築終了を待たずに上部構造の構築を開始するこ
とを可能にし、工期を短縮する。
According to the present invention, a timber column is installed by the reverse striking method, and the installation of the seismic isolation device and the construction of the lowermost frame of the upper structure are performed in advance using the tall column. The construction of the lower structure and the construction of the upper structure are made independent, and the construction of the upper structure can be started without waiting for the completion of the construction of the lower structure, thereby shortening the construction period.

【0005】構真柱の設置に先立ち、免震建物の柱の下
方位置に構真柱を支持する構真台柱が構築され、その硬
化前に構真柱が構真台柱内に挿入される。免震建物の外
周位置には下部構造構築のための根切りを行うために、
山留め壁が構築される。山留め壁の構築と構真台柱の構
築は並行して、または前後して行われる。
Prior to installation of the trussed pillar, a trussed pillar for supporting the trussed pillar is constructed below the pillar of the base-isolated building, and the trussed pillar is inserted into the trussed pillar before it is hardened. In order to make root cuts for the construction of the substructure,
A retaining wall is constructed. The construction of the retaining wall and the construction of the truss pillar are performed in parallel or before and after.

【0006】免震装置が地上階と地下階の中間に配置さ
れる場合、構真柱の構真台柱への挿入後、構真柱の頭部
に免震装置が設置され、免震装置の上に上部構造の最下
部の躯体が構築される。上部構造の躯体構築後、または
構築と並行して免震装置の下の地盤が掘削,排土され、
免震装置の下に下部構造の躯体が構築される。
[0006] When the seismic isolation device is arranged between the ground floor and the basement floor, the seismic isolation device is installed at the head of the trussed pillar after the trussed pillar is inserted into the trussed pedestal pillar. The lowermost frame of the superstructure is built on top. After or simultaneously with the construction of the superstructure, the ground under the seismic isolation device is excavated and excavated,
Under the seismic isolation device, a substructure frame is constructed.

【0007】上部構造の最下部の躯体構築後、継続して
上部構造の残りの躯体が構築されることにより、あるい
は下部構造の躯体構築後に上部構造の残りの躯体が構築
されることにより免震建物が完成する。
[0007] Seismic isolation is achieved by building the lower frame of the upper structure continuously after the lower frame of the upper structure is built, or by building the remaining frame of the upper structure after the building of the lower structure. The building is completed.

【0008】免震装置は請求項2に記載のように予め構
真柱の頭部に接続される場合もある。その場合、構真台
柱の構築後、その硬化前に、頭部に免震装置が接続され
た構真柱が構真台柱内に挿入され、その後、免震装置の
上に上部構造の最下部の躯体が構築される。
In some cases, the seismic isolation device is connected in advance to the head of the trussed pillar. In this case, after construction of the trussed pillar and before its hardening, the trussed pillar with the seismic isolation device connected to the head is inserted into the trussed pillar, and then the lowermost part of the superstructure is placed on the seismic isolation device. Is built.

【0009】免震装置が地下階の下に配置される場合、
免震装置は請求項3に記載のように構真柱の中間部に接
続される。この場合、構真台柱の構築後、その硬化前
に、免震装置が接続された構真柱が構真台柱内に挿入さ
れる。この場合も山留め壁の構築は構真台柱の構築と並
行して、または前後して行われる。
When the seismic isolation device is placed under the basement floor,
The seismic isolation device is connected to the middle part of the shaft. In this case, after the construction of the truss pillar, before the curing, the truss pillar to which the seismic isolation device is connected is inserted into the truss pillar. Also in this case, the construction of the retaining wall is performed in parallel with or before or after the construction of the truss pillar.

【0010】構真柱の挿入後、免震装置の上の地盤が掘
削,排土され、免震装置の上に上部構造の最下部の躯体
が構築される。上部構造の最下部の躯体構築と並行し
て、または構築後に免震装置の下の地盤が掘削,排土さ
れ、免震装置の下に下部構造の躯体が構築される。下部
構造の躯体構築後、免震装置を挟んで構真柱が上下に分
離させられることにより免震建物が完成する。
[0010] After the timber pillar is inserted, the ground above the seismic isolation device is excavated and excavated, and the lowermost frame of the upper structure is constructed on the seismic isolation device. The ground under the seismic isolation device is excavated and excavated in parallel with or after the construction of the lowermost frame of the superstructure, and a substructure frame is constructed under the seismic isolation device. After constructing the skeleton of the lower structure, the seismic isolation building is completed by the vertical columns being separated vertically with the seismic isolation device in between.

【0011】請求項1乃至請求項3のいずれの場合も、
上部構造の最下部の躯体構築後には上部構造の残りの躯
体の構築と、根切り及び下部構造の構築を並行して実施
することが可能であるため、上部構造の構築と下部構造
の構築を並行して行うことにより工期の短縮が図られ
る。
[0011] In any of claims 1 to 3,
After the construction of the lowermost structure of the upper structure, the construction of the remaining structure of the upper structure and the root cutting and the construction of the lower structure can be performed in parallel. By performing the operations in parallel, the construction period can be shortened.

【0012】免震装置を山留め壁にも支持させる場合
は、請求項4に記載のように山留め壁の構築後、山留め
壁の内周側に受け部材が突設され、この受け部材上に免
震装置が設置される。
When the seismic isolation device is also supported on the mountain retaining wall, a receiving member is protruded from the inner peripheral side of the mountain retaining wall after the mountain retaining wall is constructed as described in claim 4, and the seismic isolation device is mounted on the receiving member. A seismic device will be installed.

【0013】[0013]

【発明の実施の形態】請求項1と請求項3を組み合わせ
た請求項4の施工要領を示す図1〜図8により免震建物
の施工手順を説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction procedure of a base-isolated building will be described with reference to FIGS.

【0014】図1に示すように免震建物の外周位置に山
留め壁1を構築すると共に、免震建物の柱の下方位置に
構真柱3を支持する構真台柱2を構築する。山留め壁1
は例えば柱列杭や地中連続壁により、構真台柱2は場所
打ちコンクリート杭や攪拌混合処理の地盤改良により構
築される。
As shown in FIG. 1, a mountain retaining wall 1 is constructed at an outer peripheral position of a seismic isolation building, and a trussed pillar 2 for supporting a trussed pillar 3 is constructed below a column of the seismic isolated building. Mountain retaining wall 1
For example, pillar columns and underground continuous walls are used, and trussed pillars 2 are constructed by cast-in-place concrete piles and ground improvement by stirring and mixing.

【0015】構真台柱2の構築後、その硬化前に構真台
柱2内に構真柱3を挿入する。構真柱3は、その頭部が
免震装置4に支持される上部構造5の最下部の躯体のレ
ベルに対応した深度に到達するまで挿入され、頭部は最
下部の躯体底面のレベルより免震装置4の高さ分低いレ
ベルに位置する。
After the construction of the stanchion 2, the truss 3 is inserted into the stanchion 2 before curing. The trussed pillar 3 is inserted until its head reaches a depth corresponding to the level of the lowermost frame of the upper structure 5 supported by the seismic isolation device 4, and the head is higher than the level of the lowermost frame bottom. It is located at a level lower by the height of the seismic isolation device 4.

【0016】続いて図2に示すように山留め壁1で囲ま
れた領域の地盤を構真柱3の頭部が露出するまで掘削
し、排土した後、図3に示すように構真柱3の頭部上に
免震装置4を設置し、構真柱3の頭部に固定する。図面
では免震装置4として積層ゴム支承を示しているが、本
発明の免震装置4には積層ゴム支承や、滑り支承,転が
り支承等の免震支承の他、免震支承と併用されるダンパ
が含まれる。
Subsequently, as shown in FIG. 2, the ground in an area surrounded by the retaining wall 1 is excavated until the head of the timber pillar 3 is exposed, and after excavating the ground, as shown in FIG. The seismic isolation device 4 is installed on the head of No. 3 and fixed to the head of the truss 3. Although a laminated rubber bearing is shown as the seismic isolation device 4 in the drawings, the seismic isolation device 4 of the present invention is used together with a seismic isolation bearing in addition to a laminated rubber bearing, a sliding bearing, a rolling bearing, and the like. Damper is included.

【0017】免震装置4は構真台柱2内への構真柱3の
挿入に先立って予め構真柱3の頭部上に接続される場合
もあり、その場合は構真柱3の挿入によって免震装置4
の設置が完了する。
The seismic isolation device 4 may be connected on the head of the trussed pillar 3 in advance before the trussed pillar 3 is inserted into the trussed pillar 2. Seismic isolation device 4
Installation is completed.

【0018】図9に免震装置4と構真柱3の頭部との接
合例を示す。ここでは構真柱3の頭部上に免震装置4を
支持するプレート7をボルト8により固定し、プレート
7に直接、またはプレート7との間にフィラープレート
9を挟んで免震装置4の下部フランジ41を接合してい
る。下部フランジ41は、下部構造6の柱61への定着のた
めに、下部フランジ41とプレート7を貫通し、プレート
7の下方に突出するアンカーボルト10によってプレート
7に接合される。
FIG. 9 shows an example in which the seismic isolation device 4 and the head of the trussed pillar 3 are joined. Here, a plate 7 for supporting the seismic isolation device 4 is fixed on the head of the trussed pillar 3 with bolts 8, and a filler plate 9 is directly or directly interposed between the plate 7 and the plate 7. The lower flange 41 is joined. The lower flange 41 penetrates through the lower flange 41 and the plate 7 and is fixed to the plate 7 by anchor bolts 10 protruding below the plate 7 for fixing the lower structure 6 to the column 61.

【0019】図9では先行して柱61等に定着されている
アンカーボルト10に対して後から免震装置4の下部フラ
ンジ41を接合できるよう、下部フランジ41を貫通するボ
ルト8をアンカーボルト10の上端に一体化しているナッ
ト81に螺合させている。
In FIG. 9, the bolt 8 penetrating the lower flange 41 is connected to the anchor bolt 10 so that the lower flange 41 of the seismic isolation device 4 can be joined to the anchor bolt 10 previously fixed to the column 61 or the like. It is screwed into a nut 81 integrated with the upper end.

【0020】免震装置4を山留め壁1にも支持させる場
合は、図2に示すように構真柱3の挿入と共に、山留め
壁1の内周側に受け部材11が突設され、受け部材11上に
免震装置4が設置され、固定される。受け部材11は山留
め壁1から梁状に、もしくはスラブ状に突設され、その
天端が構真柱3の天端と同一になるように施工される。
When the seismic isolation device 4 is also supported on the retaining wall 1, as shown in FIG. 2, a receiving member 11 is protruded from the inner peripheral side of the retaining wall 1 along with the insertion of the straight pillar 3, and the receiving member 11 is provided. The seismic isolation device 4 is installed on 11 and fixed. The receiving member 11 projects from the retaining wall 1 in a beam shape or a slab shape, and is constructed such that the top end thereof is the same as the top end of the straight pillar 3.

【0021】図2中、左側の受け部材11は山留め壁1が
柱列杭の場合、右側の受け部材11は地中連続壁の場合の
山留め壁1との取合いの例を示す。山留め壁1が柱列杭
の場合、ソイルモルタルやコンクリートの一部を斫り、
内部に挿入されている鉄骨の芯材にスタッドボルト12や
アンカーボルトを溶接してコンクリートを打設すること
により受け部材11が山留め壁1に支持される。
In FIG. 2, the left receiving member 11 shows an example of engagement with the mountain retaining wall 1 when the retaining wall 1 is a column row pile, and the right receiving member 11 shows an example of engagement with the mountain retaining wall 1 when the underground continuous wall is used. When the retaining wall 1 is a pillar pile, cut off part of the soil mortar or concrete,
The receiving member 11 is supported by the retaining wall 1 by welding a stud bolt 12 or an anchor bolt to a steel core inserted into the inside and casting concrete.

【0022】地中連続壁の場合も山留め壁1のコンクリ
ートの一部を斫り、内部にアンカー筋13を定着させてコ
ンクリートを打設することにより受け部材11が山留め壁
1に支持される。
Also in the case of an underground continuous wall, a part of the concrete of the retaining wall 1 is cut off, the anchor bar 13 is fixed therein, and the concrete is cast and the receiving member 11 is supported by the retaining wall 1.

【0023】受け部材11への免震装置4の固定は、受け
部材11のコンクリート打設前に受け部材11部分にアンカ
ーボルト10を配置しておき、コンクリートの打設後、ア
ンカーボルト10に一体化しているナット81に、下部フラ
ンジ41を貫通するボルト8を螺合させることにより行わ
れる。
The seismic isolation device 4 is fixed to the receiving member 11 by placing an anchor bolt 10 on the receiving member 11 before placing the receiving member 11 in concrete. This is performed by screwing a bolt 8 that penetrates through the lower flange 41 to the nut 81 that has been formed.

【0024】免震装置4の設置後、図4に示すように免
震装置4の上に上部構造5の最下部の躯体である基礎ス
ラブ51や基礎梁、もしくは基礎スラブ51と基礎梁を構築
する。
After the seismic isolation device 4 is installed, as shown in FIG. 4, a foundation slab 51 and a foundation beam, or a foundation slab 51 and a foundation beam, which are the lowermost frame of the upper structure 5, are constructed on the seismic isolation device 4. I do.

【0025】図4では右側の山留め壁1と上部構造5の
躯体との間に、上部構造5の下部構造6に対する相対変
位時に上部構造5の山留め壁1への衝突を避けるための
クリアランスを確保するために、間隔保持材14を配置し
ているが、クリアランスは上部構造5の最下部の躯体や
山留め壁1の頂部の一部を斫ることによっても確保でき
るため、図4の左側の山留め壁1との取合いのように最
下部の躯体を山留め壁1を型枠として利用しながら施工
する場合もある。
In FIG. 4, a clearance is secured between the right retaining wall 1 and the frame of the upper structure 5 to avoid collision of the upper structure 5 with the retaining wall 1 when the upper structure 5 is displaced relative to the lower structure 6. In order to achieve this, the spacing member 14 is arranged, but the clearance can be secured by cutting off the lowermost skeleton of the upper structure 5 or a part of the top of the retaining wall 1. There is also a case where the lowermost skeleton is constructed while using the retaining wall 1 as a formwork, such as the connection with the wall 1.

【0026】上部構造5の最下部の躯体の構築後、ある
いは構築と並行して図5に示すように免震装置4の下の
地盤を掘削し、上部構造5の最下部の躯体の一部に形成
される、図示しない開口を通じて排土する。掘削は下部
構造6の基礎スラブ62の深度まで行われる。
After or at the same time as the construction of the lowermost frame of the upper structure 5, the ground under the seismic isolation device 4 is excavated as shown in FIG. And is discharged through an opening (not shown). Excavation is performed to the depth of the foundation slab 62 of the substructure 6.

【0027】地盤の掘削,排土後、図6に示すように根
切り底に下部構造6の基礎スラブ62、あるいは基礎スラ
ブ62と地中梁を構築し、引き続いて図7に示すように基
礎スラブ62から免震装置4まで柱61を構築する。このと
き必要により、基礎スラブ62と受け部材11間に型枠16を
設置し、山留め壁1の内周側に重ねて土圧壁15が構築さ
れる。
After excavating and discharging the ground, a foundation slab 62 of the substructure 6 or a foundation slab 62 and an underground beam are constructed at the bottom of the root as shown in FIG. 6, and subsequently, as shown in FIG. The pillar 61 is constructed from the slab 62 to the seismic isolation device 4. At this time, if necessary, the formwork 16 is installed between the foundation slab 62 and the receiving member 11, and the earth pressure wall 15 is built up on the inner peripheral side of the retaining wall 1.

【0028】その後、図8に示すように上部構造5の最
下部の躯体と山留め壁1との間にクリアランスを確保す
る。クリアランスは上記の通り、間隔保持材14を撤去す
ることにより、もしくは山留め壁1の頂部の内周側や上
部構造5の最下部の躯体を斫ることにより、あるいは間
隔保持材14の撤去と、山留め壁1や上部構造5の斫りに
より形成される。
Thereafter, a clearance is secured between the lowermost frame of the upper structure 5 and the retaining wall 1 as shown in FIG. As described above, the clearance is obtained by removing the spacing member 14, or by cutting the inner peripheral side of the top of the retaining wall 1 or the lowermost frame of the upper structure 5, or by removing the spacing member 14, It is formed by shaving the retaining wall 1 and the upper structure 5.

【0029】上部構造5の、基礎スラブ51の上の残りの
躯体は基礎スラブ51の構築後に引き続き、地盤の掘削と
並行して構築される他、下部構造6の躯体の構築後に構
築される。
The remaining body of the upper structure 5 above the foundation slab 51 is constructed after the construction of the foundation slab 51, in parallel with the excavation of the ground, and also after the construction of the body of the lower structure 6.

【0030】図10〜図12は上部構造5が地下階を有し、
免震装置4が地下階の下に配置される場合の施工要領を
示す。この場合、免震装置4は構真柱3の中間部に接続
されており、構真柱3は、免震装置4が構真台柱2の天
端付近に位置するまで構真台柱2内に挿入される。
10 to 12 show that the superstructure 5 has a basement floor,
The construction procedure when the seismic isolation device 4 is arranged below the basement floor is shown. In this case, the seismic isolation device 4 is connected to the middle part of the truss column 3, and the truss column 3 remains in the truss column 2 until the seismic isolation device 4 is located near the top end of the truss column 2. Inserted.

【0031】この場合、構真柱3は免震装置4の配置の
ために、図10及びそのx−x線断面図である図11に示す
ように断面上の四隅に位置する主材31と、隣接する主材
31,31間に架設されるラチス材32から組み立てられる。
構真柱3の構真台柱2内への挿入から、免震装置4上の
上部構造5の基礎スラブ51の構築までの間、免震装置4
はその回りに箱形に組み立てられる、図示しない鉄板等
により土と水から保護される。
In this case, for the arrangement of the seismic isolation device 4, the trussed pillar 3 has the main members 31 located at the four corners on the cross section as shown in FIG. 10 and FIG. , Adjacent main material
Assembled from lattice material 32 erected between 31,31.
From the insertion of the trussed pillar 3 into the trussed pedestal pillar 2 to the construction of the foundation slab 51 of the superstructure 5 on the seismic isolation device 4,
Is protected from soil and water by an iron plate or the like (not shown) assembled around the box.

【0032】免震装置4の下部フランジ41と上部フラン
ジ42には下部構造6の柱61や基礎スラブ62、あるいは構
真台柱2への定着のためのアンカーボルト10と、上部構
造5の基礎スラブ51や柱52への定着のためのアンカーボ
ルト10が付属している。
The lower flange 41 and the upper flange 42 of the seismic isolation device 4 have anchor bolts 10 for fixing to the column 61 and the foundation slab 62 of the lower structure 6 or the truss pillar 2 and the foundation slab of the upper structure 5. Anchor bolt 10 for fixing to 51 and pillar 52 is attached.

【0033】構真柱3の構真台柱2内への挿入後、地表
から免震装置4の設置位置までの掘削と排土が行われ、
免震装置4上に、上部構造5の基礎スラブ51等、最下部
の躯体の構築が行われる。
After the trussed pillar 3 is inserted into the trussed pillar 2, excavation and earth removal from the surface to the installation position of the seismic isolation device 4 are performed.
On the seismic isolation device 4, a lowermost frame such as the foundation slab 51 of the upper structure 5 is constructed.

【0034】免震装置4の下への下部構造6の基礎スラ
ブ51等、躯体の構築は上部構造5の最下部の躯体構築と
並行して、または前後して行われる。構真台柱2はその
まま下部構造6の柱61として利用される。
Construction of the skeleton such as the foundation slab 51 of the lower structure 6 under the seismic isolation device 4 is performed in parallel with or before or after the construction of the lowermost skeleton of the upper structure 5. The truss pillar 2 is used as it is as the pillar 61 of the lower structure 6.

【0035】上部構造5の最下部の躯体の構築と下部構
造6の躯体の構築後、構真柱3は免震装置4を挟んで上
部構造5と下部構造6とに跨ることから、下部構造6に
対する上部構造5の相対変位を許容するために、図12に
示すように構真柱3の、免震装置4の高さの区間を切断
し、免震装置4を挟んで構真柱3を上下に分離させる。
After the construction of the lowermost frame of the upper structure 5 and the frame of the lower structure 6, the timber pillar 3 straddles the upper structure 5 and the lower structure 6 with the seismic isolation device 4 interposed therebetween. In order to allow the relative displacement of the upper structure 5 with respect to 6, the section of the truss pillar 3 at the height of the seismic isolation device 4 is cut off as shown in FIG. Are separated vertically.

【0036】この場合も、上部構造5の、基礎スラブ51
上の残りの躯体は基礎スラブ51の構築後に引き続き、下
部構造6の躯体の構築と並行して構築される他、下部構
造6の躯体の構築後に構築される。
In this case, too, the basic slab 51 of the upper structure 5
The remaining upper frame is constructed after the construction of the base slab 51, in parallel with the construction of the frame of the lower structure 6, and also after the construction of the frame of the lower structure 6.

【0037】[0037]

【発明の効果】請求項1,請求項3,請求項4共、逆打
ち工法により構真柱を設置し、構真柱を利用して免震装
置の設置と上部構造の最下部の躯体の構築を先行させる
ことで、下部構造の構築と上部構造の構築を独立させる
ため、下部構造の構築終了を待たずに上部構造の構築を
開始することが可能になり、工期の短縮が図られる。
According to the first, third and fourth aspects of the present invention, a straight pillar is installed by a reverse striking method, and a seismic isolation device is installed using the straight pillar and the lowermost frame of the upper structure is installed. By leading the construction, the construction of the lower structure and the construction of the upper structure are made independent, so that the construction of the upper structure can be started without waiting for the completion of the construction of the lower structure, thereby shortening the construction period.

【0038】請求項2では免震装置を予め構真柱の頭部
に接続しておくため、より施工が単純化される。
According to the second aspect, since the seismic isolation device is connected to the head of the straight pole in advance, the construction is further simplified.

【図面の簡単な説明】[Brief description of the drawings]

【図1】山留め壁と構真台柱の構築と、構真柱の挿入が
終了した段階を示した断面図である。
FIG. 1 is a cross-sectional view showing a stage where construction of a retaining wall and a truss pillar and insertion of the truss pillar have been completed.

【図2】一次的な根切りと受け部材の突設が終了した段
階を示した断面図である。
FIG. 2 is a cross-sectional view showing a stage where primary root cutting and projecting of a receiving member are completed.

【図3】免震装置の設置が終了した段階を示した断面図
である。
FIG. 3 is a cross-sectional view showing a stage where installation of the seismic isolation device is completed.

【図4】上部構造の最下部の躯体の構築が終了した段階
を示した断面図である。
FIG. 4 is a cross-sectional view showing a stage where the construction of the lowermost frame of the upper structure has been completed.

【図5】二次的な根切りが終了した段階を示した断面図
である。
FIG. 5 is a cross-sectional view showing a stage at which secondary root cutting is completed.

【図6】下部構造の基礎スラブの構築が終了した段階を
示した断面図である。
FIG. 6 is a cross-sectional view showing a stage where the construction of the base slab having the lower structure has been completed.

【図7】下部構造の柱の構築が終了した段階を示した断
面図である。
FIG. 7 is a cross-sectional view showing a stage where the construction of the pillars of the lower structure has been completed.

【図8】上部構造の躯体と山留め壁間にクリアランスを
形成した段階を示した断面図である。
FIG. 8 is a cross-sectional view showing a stage in which a clearance has been formed between the skeleton of the upper structure and the retaining wall.

【図9】免震装置と構真柱の取合い例を示した立面図で
ある。
FIG. 9 is an elevation view showing an example of a connection between a seismic isolation device and a timber pillar.

【図10】構真柱の中間部に免震装置が配置される場合
の構真柱の挿入が終了した段階を示した断面図である。
FIG. 10 is a cross-sectional view showing a stage where insertion of the trussed pillar is completed when the seismic isolation device is arranged in the middle of the trussed pillar.

【図11】図10のx−x線断面図である。FIG. 11 is a sectional view taken along line xx of FIG. 10;

【図12】構真柱の、免震装置設置部分を切断した状態
を示した断面図である。
FIG. 12 is a cross-sectional view illustrating a state in which a seismic isolation device installation portion of a straight pillar is cut off.

【符号の説明】[Explanation of symbols]

1……山留め壁、2……構真台柱、3……構真柱、31…
…主材、32……ラチス材、4……免震装置、41……下部
フランジ、42……上部フランジ、5……上部構造、51…
…基礎スラブ、52……柱、6……下部構造、61……柱、
62……基礎スラブ、7……プレート、8……ボルト、81
……ナット、9……フィラープレート、10……アンカー
ボルト、11……受け部材、12……スタッドボルト、13…
…アンカー筋、14……間隔保持材、15……土圧壁、16…
…型枠。
1 ... Mounting wall, 2 ... Structural pillar, 3 ... Structural pillar, 31 ...
… Main material, 32… Lattice material, 4 …… Seismic isolation device, 41 …… Lower flange, 42 …… Upper flange, 5 …… Upper structure, 51…
... foundation slab, 52 ... pillar, 6 ... substructure, 61 ... pillar,
62… basic slab, 7… plate, 8… bolt, 81
... Nut, 9 ... Filler plate, 10 ... Anchor bolt, 11 ... Receiving member, 12 ... Stud bolt, 13 ...
… Anchor bars, 14… spacer, 15… earth pressure walls, 16…
... forms.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐野 公俊 東京都港区元赤坂1丁目2番7号 鹿島 建設株式会社内 (56)参考文献 特開 平8−291526(JP,A) (58)調査した分野(Int.Cl.6,DB名) E02D 29/045 - 29/055 E02D 13/04 E02D 27/34 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Kimitoshi Sano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) References JP-A-8-291526 (JP, A) (58) Surveyed field (Int.Cl. 6 , DB name) E02D 29/045-29/055 E02D 13/04 E02D 27/34

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 免震建物の外周位置に山留め壁を構築す
る一方、免震建物の柱の下方位置に構真柱を支持する構
真台柱を構築し、その硬化前に、構真柱を構真台柱内に
挿入した後、構真柱の頭部に免震装置を設置し、免震装
置の上に上部構造の最下部の躯体を構築する一方、免震
装置の下の地盤を掘削,排土し、免震装置の下に下部構
造の躯体を構築する免震建物の施工方法。
The present invention relates to a seismic isolation building, wherein a mountain retaining wall is constructed at an outer peripheral position of the seismic isolation building, and a trussed pillar for supporting the trussed pillar is constructed below the pillars of the seismic isolated building. After being inserted into the trussed pillar, the seismic isolation device is installed at the head of the trussed pillar, and the lowermost frame of the superstructure is constructed on the seismic isolation device, while the ground below the seismic isolation device is excavated. , Construction method of seismic isolation building that removes earth and constructs substructure frame under seismic isolation device.
【請求項2】 免震建物の外周位置に山留め壁を構築す
る一方、免震建物の柱の下方位置に構真柱を支持する構
真台柱を構築し、その硬化前に、頭部に免震装置が接続
された構真柱を構真台柱内に挿入した後、免震装置の上
に上部構造の最下部の躯体を構築する一方、免震装置の
下の地盤を掘削,排土し、免震装置の下に下部構造の躯
体を構築する免震建物の施工方法。
2. A seismic retaining wall is constructed at an outer peripheral position of the seismic isolation building, and a trussed pillar for supporting the trussed pillar is constructed below the pillar of the seismic isolated building. After inserting the trussed pillar to which the seismic device is connected into the trussed stanchion, construct the lowermost frame of the superstructure on the seismic isolation device, and excavate and discharge the ground under the seismic isolation device. Construction method of seismic isolation building to build a substructure frame below seismic isolation device.
【請求項3】 免震建物の外周位置に山留め壁を構築す
る一方、免震建物の柱の下方位置に構真柱を支持する構
真台柱を構築し、その硬化前に、中間部に免震装置が接
続された構真柱を構真台柱内に挿入した後、免震装置の
上の地盤を掘削,排土し、免震装置の上に上部構造の最
下部の躯体を構築する一方、免震装置の下の地盤を掘
削,排土し、免震装置の下に下部構造の躯体を構築した
後、免震装置を挟んで構真柱を上下に分離させる免震建
物の施工方法。
3. A mountain retaining wall is constructed at an outer peripheral position of the seismic isolation building, and a trussed pillar for supporting the trussed pillar is constructed below the pillars of the seismic isolated building. After inserting the trussed pillar to which the seismic device is connected into the trussed stanchion, the ground above the seismic isolation device is excavated and excavated, and the lowermost frame of the superstructure is constructed on the seismic isolation device. After excavating and excavating the ground under the seismic isolation device, constructing a substructure frame under the seismic isolation device, and then separating the vertical columns vertically across the seismic isolation device .
【請求項4】 山留め壁の構築後、山留め壁の内周側に
受け部材を突設し、この受け部材上に免震装置を設置す
る請求項1乃至請求項3のいずれかに記載の免震建物の
施工方法。
4. A seismic isolation device according to claim 1, wherein after the construction of the retaining wall, a receiving member is protruded on the inner peripheral side of the retaining wall, and the seismic isolation device is installed on the receiving member. Construction method of earthquake building.
JP14421298A 1998-05-26 1998-05-26 Construction method of seismic isolation building Expired - Lifetime JP2950325B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14421298A JP2950325B1 (en) 1998-05-26 1998-05-26 Construction method of seismic isolation building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14421298A JP2950325B1 (en) 1998-05-26 1998-05-26 Construction method of seismic isolation building

Publications (2)

Publication Number Publication Date
JP2950325B1 true JP2950325B1 (en) 1999-09-20
JPH11336095A JPH11336095A (en) 1999-12-07

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Publication number Priority date Publication date Assignee Title
JP4890098B2 (en) * 2006-05-22 2012-03-07 三井住友建設株式会社 Construction method of seismic isolation building
JP4791997B2 (en) * 2007-04-04 2011-10-12 株式会社竹中工務店 Rebuilding method
JP2008303587A (en) * 2007-06-06 2008-12-18 Takenaka Komuten Co Ltd Top-down construction method for base-isolated building
JP6269267B2 (en) * 2014-04-02 2018-01-31 新日鐵住金株式会社 Seismic structure of embankment structure
CN105839970B (en) * 2016-05-30 2018-02-02 郑州大学 Rammed earth agriculture room sliding and shock isolation position limiting structure and its construction technology
CN107620386B (en) * 2017-10-23 2019-08-23 南京百西思建筑科技有限公司 The mounting structure and construction method of shock isolating pedestal in existing building base isolation reinforcement

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08291526A (en) * 1995-04-21 1996-11-05 Fujita Corp Construction method for underground structure

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