JPH0978845A - Jacking-up method of existing building - Google Patents
Jacking-up method of existing buildingInfo
- Publication number
- JPH0978845A JPH0978845A JP23109295A JP23109295A JPH0978845A JP H0978845 A JPH0978845 A JP H0978845A JP 23109295 A JP23109295 A JP 23109295A JP 23109295 A JP23109295 A JP 23109295A JP H0978845 A JPH0978845 A JP H0978845A
- Authority
- JP
- Japan
- Prior art keywords
- existing building
- foundation
- jack
- temporary
- building
- 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
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、ビル等の既存建
物下部の基礎を地盤側基礎から切り離して所要高さまで
持上げて必要な工事を施工するためのジャッキアップ工
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack-up construction method for separating a foundation of a lower part of an existing building such as a building from a foundation on a ground side and lifting it to a required height to carry out a necessary construction.
【0002】[0002]
【従来の技術】近年、既存建物の耐震性能を向上させる
ために、その既存建物の基礎下部に免震装置を導入した
り、あるいは既存建物を一層分持上げ、その下部を地下
室等に利用する等の要求がある。2. Description of the Related Art In recent years, in order to improve the seismic performance of an existing building, a seismic isolation device has been installed in the lower part of the foundation of the existing building, or the existing building is further lifted and the lower part is used as a basement. Is required.
【0003】ここで、この様な工事を行うには、既存建
物を所要高さまでジャッキアップしてその状態を保持し
ておく必要があるが、そのジャッキアップ工法として
は、既存建物下部の基礎を基礎杭等の地盤側基礎から切
り離して、ジャッキにより押し上げることが考えられて
いる。Here, in order to carry out such a construction, it is necessary to jack up the existing building to a required height and hold the state, but as the jacking-up construction method, the foundation of the lower part of the existing building is used. It is considered to separate it from the ground side foundation such as foundation pile and push it up with a jack.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、従来の
ジャッキによるリフトアップ作業にあっては、建築物を
その下部に挿入したジャッキで単に押し上げて所要の高
さに保持するだけか、あるいは押し上げたのち支保工上
に載置しているだけであるため、強風あるいは地震など
の水平力に対して抗することができず、過大な水平力を
受けると位置ずれを招く懸念がある。However, in the conventional lift-up work using the jack, the building is simply pushed up by the jack inserted in the lower part of the building to hold it at a required height, or after it is pushed up. Since it is only placed on the support work, it cannot withstand horizontal forces such as strong winds or earthquakes, and there is a risk of displacement if an excessive horizontal force is received.
【0005】なお、短期的な作業であるならば、この様
な位置ずれを招くような事態に遭遇する可能性は少ない
が、下部構造物の工事期間が長期に亘り、しかも工事期
間中該当する建物を供用しつつジャッキアップ状態を保
持するには、これらに対する保全対策を充分に考慮した
工法を採用する必要がある。If it is a short-term work, there is little possibility of encountering such a positional deviation, but the construction period of the lower structure is long, and it is applicable during the construction period. In order to maintain the jacked-up state while the building is in service, it is necessary to adopt a construction method that fully considers the maintenance measures for these.
【0006】この発明は、以上の事情に鑑みてなされた
ものであり、その目的は、ジャッキアップした既存建物
に加わる水平力に充分対抗し得る既存建物のジャアップ
工法を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a jacquard construction method for an existing building which can sufficiently resist the horizontal force applied to the jacked up existing building.
【0007】[0007]
【課題を解決するための手段】前記目的を達成するた
め、この発明のうち請求項1記載のジャッキアップ工法
は、既存建物の下部基礎を地盤側から切り離し、該既存
建物を所要高さまでジャッキアップする工法において、
前記既存建物の地中梁の適宜箇所の両側に配置される一
対のジャッキ架台と、該ジャッキ架台の間にあって、前
記地中梁の下部を支持する補強材兼用の支持体と、前記
各ジャッキ架台上に配置され、前記支持体を懸架するリ
フトアップジャッキとを備えて、該リフトアップジャッ
キの上昇動作により前記支持体を上昇させ、該既存建物
の下部基礎の下方には仮設基礎を設けるとともに、該仮
設基礎上に該下部基礎の周囲を包囲して係合する仮設架
台を設けて、該仮設架台を介して該既存建物に加わる水
平力を地盤側にて支持することによって、前記支持体上
に載置された状態で地中梁は上昇し、過大な水平力が加
わった場合には、仮設架台が降伏して変形することで、
免震作用を呈し、上昇中の既存建物への入力が減少し、
水平力に対する抗力を得る。In order to achieve the above object, in the jack-up method according to claim 1 of the present invention, the lower foundation of an existing building is separated from the ground side, and the existing building is jacked up to a required height. In the construction method
A pair of jack pedestals arranged on both sides of appropriate points of the underground girder of the existing building, a support body that is between the jack pedestals and serves as a reinforcing member for supporting the lower part of the underground girder, and each jack pedestal With a lift-up jack arranged above and suspending the support body, the support body is lifted by the lifting operation of the lift-up jack, and a temporary foundation is provided below the lower foundation of the existing building, By providing a temporary stand surrounding the lower foundation on the temporary foundation and engaging with the lower foundation, and supporting the horizontal force applied to the existing building via the temporary stand on the ground side, Underground beam rises in the state of being placed on the ground, and when an excessive horizontal force is applied, the temporary mount yields and deforms,
It has a seismic isolation effect, reducing the input to the rising existing building,
Obtains resistance to horizontal force.
【0008】この発明のうち請求項2記載のジャッキア
ップ工法は、既存建物の下部基礎を地盤側から切り離
し、該既存建物を所要高さまでジャッキアップする工法
において、前記既存建物の下部基礎の下方に複数のプッ
シュアップ用ジャッキを配置し、該プッシュアップ用ジ
ャッキの上昇動作により該下部基礎を上昇動作させると
ともに、該仮設基礎上に該下部基礎の周囲を包囲して係
合する仮設架台を設けて、該仮設架台を介して該既存建
物に加わる水平力を地盤側にて支持することにより、前
記と同様に水平力に対する抗力を得ることになる。The jack-up construction method according to claim 2 of the present invention is a construction method in which the lower foundation of an existing building is separated from the ground side and the existing building is jacked up to a required height. A plurality of push-up jacks are arranged, the lower foundation is raised by the raising operation of the push-up jacks, and a temporary stand that surrounds and engages with the periphery of the lower foundation is provided on the temporary foundation. By supporting the horizontal force applied to the existing building through the temporary mount on the ground side, the reaction force against the horizontal force can be obtained as described above.
【0009】この発明のうち、請求項3記載のジャッキ
アップ工法は、前記既存建物の周囲に緩衝用のダンパを
介してバットレスフレームを配置したことによって、建
物が動いた場合に緩衝用ダンパによって入力が減少する
ため、さらに二重の安全性を得ることができる。In the jack-up method according to the third aspect of the present invention, the buttress frame is arranged around the existing building through a damper for shock absorption, so that when the building is moved, input is made by the shock absorbing damper. Can be reduced, and thus double security can be obtained.
【0010】[0010]
【発明の実施の形態】以下、この発明の実施の形態を添
付図面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.
【0011】図1〜図3は、この発明工法の第一実施形
態例による施工手順を示すものである。1 to 3 show a construction procedure according to a first embodiment of the method of the present invention.
【0012】先ず、図1、2に示すように、既存建物の
下部は、基礎杭1上に設置された下部基礎2及び基礎2
に十字形に一体に交差する地中梁3からなり、基礎2上
には柱4が一体に立設され、その上部を2階部分2FL
から上を構成する梁、及び床スラブに連結している。ま
た地中梁3上には一階床面1FLを構成するスラブが一
体化されている。First, as shown in FIGS. 1 and 2, the lower part of an existing building is a lower foundation 2 and a foundation 2 installed on a foundation pile 1.
Consists of underground beams 3 that intersect in a cross shape, and pillars 4 are integrally erected on the foundation 2 and the upper part of the pillar 4 is located on the second floor 2FL.
Are connected to the beams and floor slabs that make up the floor. A slab that constitutes the first floor 1FL is integrated on the underground beam 3.
【0013】施工に当っては、先ず基礎2の周囲を掘下
げ、基礎2に近接する任意の地中梁3の下部に仮土台5
を構築し、地中梁3の両側を挟んで、前記仮土台5上に
門形をした一対のジャッキ架台6を設置するとともに、
ジャッキ架台6の間にあって地中梁3の下部に梁補強材
兼用の逆台形状をした支持体7を一体に設ける。この支
持体7は、鉄骨などによって地中梁3の下部に一体に構
築されるものである。In the construction, first, the periphery of the foundation 2 is dug down, and the temporary base 5 is placed under the arbitrary underground beam 3 close to the foundation 2.
And installing a pair of gate-shaped jack mounts 6 on the temporary base 5 with both sides of the underground beam 3 sandwiched therebetween.
A support 7 having an inverted trapezoidal shape that also serves as a beam reinforcement is integrally provided below the underground beam 3 between the jack mounts 6. The support body 7 is integrally constructed in the lower portion of the underground beam 3 by a steel frame or the like.
【0014】次いで各ジャッキ架台6上の中央にはリフ
トアップジャッキ8を設置し、その中心を貫通するリフ
トアップロッド9をジャッキ架台6の下部側に垂下さ
せ、このリフトアップロッド9の下端を前記支持体7の
下部に交差配置された支持梁10に固定することで、ジ
ャッキアップ準備作業が完了する。Next, a lift-up jack 8 is installed in the center of each jack rack 6, a lift-up rod 9 penetrating the center of the jack rack 6 is hung down to the lower side of the jack rack 6, and the lower end of the lift-up rod 9 is set as described above. The jack-up preparation work is completed by fixing the support beam 10 to the support beam 10 which is arranged below the support body 7 in a crossed manner.
【0015】なお、図においては一カ所しか示されてい
ないが、基礎2毎に以上のジャッキ設備を配置する。Although only one place is shown in the figure, the above jack equipment is arranged for each foundation 2.
【0016】また、この後に、基礎杭1と基礎2との間
を切離し、基礎杭1上に仮設基礎11を設置し、さらに
仮設基礎11上には基礎2の周囲を包囲する仮設架台1
2を配置する。仮設架台12は、H型鋼からなる縦横の
フレーム12a,12bを櫓状に組み立てて基礎2の周
囲を覆うとともに、周囲にブレース材12c を掛け渡
したトラス組状のもので、縦フレーム12aを予め上方
に延設することで、基礎2の上昇ガイドを行う。After that, the foundation pile 1 and the foundation 2 are separated from each other, the temporary foundation 11 is installed on the foundation pile 1, and the temporary foundation 1 surrounding the foundation 2 is further provided on the temporary foundation 11.
2 is arranged. The temporary pedestal 12 is a truss-shaped one in which vertical and horizontal frames 12a and 12b made of H-shaped steel are assembled in a turret shape to cover the periphery of the foundation 2 and brace members 12c are laid around the frame. The base 2 is guided to rise by extending upward.
【0017】以上の準備作業後は各ジャッキ8を一斉に
駆動し、リフトアップロッド9を引上げることで、図3
に示すように、これに連結した支持体7を引上げ、基礎
2及び地中梁3を上昇動作させることができる。After the above preparatory work, the jacks 8 are driven all at once, and the lift-up rod 9 is pulled up, so that FIG.
As shown in, the support 7 connected to this can be pulled up, and the foundation 2 and the underground beam 3 can be moved up.
【0018】上昇作業一回毎の上昇ストロークは、リフ
トアップワイヤ9の長さに依存するものであるが、ジャ
ッキ8により直接プッシュアップする場合に比べてスト
ロークを極めて大きく取ることができる。また、上昇作
業時には、当然ながら建物の鉛直度、水平度を測定しつ
つ各ジャッキ8のジャッキアップ速度、上昇ストローク
を調整しながら行うことによって、建物各部の不陸を未
然に防止できる。The ascending stroke for each ascending operation depends on the length of the lift-up wire 9, but the stroke can be made extremely large as compared with the case where the jack 8 directly pushes up. In addition, when the ascending work is naturally performed by adjusting the jack-up speed and the ascending stroke of each jack 8 while measuring the verticality and the horizontalness of the building, it is possible to prevent the unevenness of each part of the building.
【0019】このとき、図3に示すように、基礎2の上
昇に合わせて周囲の仮設架台12には横方向のフレーム
12b及びブレース材12cを増設して補強していく。
さらに上昇させる場合には、仮設架台12を上方に延設
して増設するとともに、個々のジャッキ架台6を上昇さ
せ、各ジャッキ架台6と仮土台5間にスペーサを挿入す
れば、再び図1のジャッキアップ待機状態となり、以下
同様にして尺取虫状にジャッキアップ作業を反復するこ
とによって、所望の高さ位置まで既存建物をジャッキア
ップできることになる。At this time, as shown in FIG. 3, a frame 12b and a brace member 12c in the lateral direction are additionally installed and reinforced in accordance with the rise of the foundation 2 on the temporary pedestal 12 around.
When it is further raised, the temporary pedestal 12 is extended upward to be additionally installed, the individual jack pedestals 6 are also raised, and the spacers are inserted between the respective jack pedestals 6 and the temporary base 5, so that FIG. The jack-up standby state is entered, and by repeating the jack-up work in the same manner as the scale-like insect, the existing building can be jacked up to a desired height position.
【0020】以上の一連の作業工程において、建物が最
も不安定なのは、上昇作業完了時点であるが、下部基礎
2の周囲は仮設基礎11上に設けた仮設架台12に係合
し、また支持体7の補強効果、及び支持体7自体がジャ
ッキ架台6に両側を狭持状態に支持されていることによ
って風、地震などの横力が建物に加わってもこれに対抗
できることになる。また、想定以上の水平力が加わった
場合には、基礎2を包囲する仮設架台12自体が降伏し
て剛性を低下させることで一種の免震効果を生じ、既存
建物への入力を減少させる。なお既存建物を一層分リフ
トアップして、その下部を新たに地下室等に利用する場
合には、仮設架台12は本設柱の構成部材として使用で
きる。In the above-described series of work steps, the building is most unstable at the time when the ascending work is completed, but the periphery of the lower foundation 2 is engaged with the temporary pedestal 12 provided on the temporary foundation 11, and the supporting body is supported. Due to the reinforcing effect of 7 and the support 7 itself being supported by the jack stand 6 in a state of sandwiching both sides, even if lateral force such as wind or earthquake is applied to the building, it can be countered. In addition, when a horizontal force larger than expected is applied, the temporary pedestal 12 surrounding the foundation 2 yields and lowers the rigidity, so that a kind of seismic isolation effect is produced and the input to the existing building is reduced. When the existing building is lifted up by one layer and the lower part is newly used as a basement or the like, the temporary pedestal 12 can be used as a constituent member of the main installation pillar.
【0021】図4〜図6はこの発明の第二実施形態例を
示すものである。なお、前記と同一箇所には同一符号を
付し、異なる部分にのみ異なる符号を用いて説明する。4 to 6 show a second embodiment of the present invention. The same portions as those described above will be denoted by the same reference numerals, and different portions will be described by using different reference numerals.
【0022】図において、基礎2の下部には補強兼用の
支持体30が配置されているとともに、基礎杭1の周囲
を取囲むようにして仮設基礎31が構築され、この仮設
基礎31と支持体30との間に4つのプッシュアップ用
ジャッキ32が配置されることによってジャッキアップ
準備作業がなされ、各ジャッキ32の駆動によって基礎
2を上昇させる。さらに、仮設基礎31上には前記仮設
架台12が配置され基礎2の周囲を包囲している。In the figure, a support 30 also serving as a reinforcement is arranged at the bottom of the foundation 2, and a temporary foundation 31 is constructed so as to surround the periphery of the foundation pile 1. The temporary foundation 31 and the support 30 By arranging the four push-up jacks 32 between them, the jack-up preparation work is performed, and the foundation 2 is raised by driving each jack 32. Further, the temporary stand 12 is arranged on the temporary foundation 31 and surrounds the periphery of the foundation 2.
【0023】このジャッキストロークは短いが、図6に
示すごとく上昇動作毎に仮設基礎31とジャッキ32と
の間にスペーサ33を介在させ、また、ある程度上昇距
離が大きくなる毎に、仮設基礎31上に補強桁34を積
層することで安全性を保って上昇作業を行うことができ
る図7は、この発明の第三実施形態例を示すものであっ
て、前述の実施形態例1、2におけるリフトアップ準備
作業と平行して、既存建物の周囲の複数箇所にバットレ
スフレーム40を構築し、緩衝用ダンパを構成する防舷
材41を介して既存建物との間に僅かな隙間をおいて対
向させる。Although the jack stroke is short, as shown in FIG. 6, a spacer 33 is interposed between the temporary foundation 31 and the jack 32 for each ascending operation, and the temporary foundation 31 is placed on the temporary foundation 31 every time the ascending distance becomes large to some extent. FIG. 7 shows an example of the third embodiment of the present invention in which the safety girder 34 can be stacked and the ascending work can be performed with safety. In parallel with the preparatory work, the buttress frames 40 are constructed at a plurality of locations around the existing building, and the buttress frames 40 are opposed to the existing building with a small gap between them through the fender 41 that constitutes the shock absorber. .
【0024】バットレスフレーム40はH型鋼の組合わ
せからなるもので、既存建物の側面にあって、その外側
に延長して施工された仮設基礎42上に鉛直に固定され
た門形フレーム40aと、門形フレーム40aの背面に
斜めに掛渡されてこれを支持する斜桁40bと、斜桁4
0bと門形フレーム40a間に掛渡されたブレース材4
0cと、門形フレーム40aの前面中央に鉛直に固定さ
れた水平力受け部材40dとから構成されている。The buttress frame 40 is made of a combination of H-shaped steels, and is a portal frame 40a vertically fixed on a temporary foundation 42 which is located on the side surface of the existing building and extended to the outside thereof. Oblique girders 40b slantingly supported on the back surface of the gate-shaped frame 40a and supporting the same, and the oblique girders 4
Brace material 4 hung between 0b and the portal frame 40a
0c and a horizontal force receiving member 40d vertically fixed to the center of the front surface of the portal frame 40a.
【0025】防舷材41は基礎2の外側部に固定され、
前記水平力受け部40dとの間に僅かな隙間を保って対
向している。最大リフトアップ時に基礎2は図7の想像
線位置まで上昇するが、前記水平力受け部材40dの高
さは、これに対応しており、何れの高さ位置においても
既存建物1の水平力が防舷材41を介してバットレスフ
レーム40に伝達されるようになっている。The fender 41 is fixed to the outer side of the foundation 2,
It is opposed to the horizontal force receiving portion 40d with a slight gap maintained. At the time of maximum lift up, the foundation 2 rises to the position of the imaginary line in FIG. 7, but the height of the horizontal force receiving member 40d corresponds to this, and the horizontal force of the existing building 1 is at any height position. It is adapted to be transmitted to the buttress frame 40 via the fender 41.
【0026】なお、図においては、防舷材41を基礎2
の外側部に固定してあり、既存建物がどの高さ位置であ
っても水平力受け部材40d側に当ることができ、防舷
材41を水平力受け部材40dの全長に亘って設ける場
合に比べて経済的に有利である。In the figure, the fender 41 is used as the base 2
It is fixed to the outer side of the building and can hit the horizontal force receiving member 40d side regardless of the height of the existing building, and when the fender 41 is provided over the entire length of the horizontal force receiving member 40d. It is economically advantageous in comparison.
【0027】従って、何れの実施例においても施工中に
強風や地震等の水平力が既存建物に加わった場合に、仮
設架台12がその水平力Fに抗して既存建物を地盤上に
保持する。また、想定以上の水平力 が加わった場合に
は、仮設架台12自体が降伏して剛性を低下させること
で一種の免震効果を生じ、既存建物への入力を減少させ
る。Therefore, in any of the embodiments, when a horizontal force such as a strong wind or an earthquake is applied to the existing building during construction, the temporary pedestal 12 holds the existing building on the ground against the horizontal force F. . In addition, when a horizontal force more than expected is applied, the temporary pedestal 12 itself yields and lowers the rigidity, so that a kind of seismic isolation effect is produced and the input to the existing building is reduced.
【0028】さらに、この結果既存建物が動いた場合に
これを防舷材41を介してバットレスフレーム40で受
けとめ、防舷材41の緩衝作用によって既存建物に作用
する水平エネルギーを減少させつつ、位置ずれを抑制す
ることになる。Further, when the existing building moves as a result of this, the buttress frame 40 receives it by way of the fender 41, and the buffering effect of the fender 41 reduces the horizontal energy acting on the existing building while reducing the position. The deviation will be suppressed.
【0029】[0029]
【発明の効果】以上実施例により詳細に説明したよう
に、この発明のうち請求項1記載の既存建物のジャッキ
アップ工法によれば、既存建物のリフトアップ期間中に
強風、地震などの水平力が加わっても、その水平力を仮
設架台を介して地盤側で支持することができ、水平力に
対する抗力が得られる。また、想定以上の過大な水平力
が加わった場合には、仮設架台が降伏して変形すること
で、免震作用を呈し、上昇中の既存建物への入力を減少
させることができる。また、一回のジャッキアップ作業
による上昇ストロークが大きいなどの特徴がある。As described above in detail with reference to the embodiments, according to the jack-up construction method for an existing building according to claim 1 of the present invention, the horizontal force such as strong wind, earthquake, etc., during the lift-up period of the existing building. Even if the horizontal force is applied, the horizontal force can be supported on the ground side through the temporary pedestal, and a resistance force against the horizontal force can be obtained. Further, when an excessive horizontal force is applied more than expected, the temporary pedestal yields and deforms, thereby exhibiting a seismic isolation effect and reducing the input to the existing building that is rising. In addition, there is a feature that the lifting stroke is large due to one jack-up work.
【0030】また、この発明のうち請求項2記載の発明
によれば、一般的なプッシュアップ用ジャッキを用いる
ことができるので、以上の効果に加えて準備作業が簡単
となる。According to the second aspect of the present invention, since a general push-up jack can be used, the preparation work is simplified in addition to the above effects.
【0031】この発明のうち請求項3記載の発明によれ
ば、過大な水平力によって既存建物が動いた場合には、
これを前記既存建物の周囲に配置したバットレスフレー
ムに緩衝用のダンパを介して受け止め、ダンパの緩衝作
用によって既存建物に対する入力を減ずることができ、
さらに安全性を確保できる。According to the third aspect of the present invention, when the existing building is moved by an excessive horizontal force,
This can be received by a buttress frame arranged around the existing building via a damper for buffering, and the buffering action of the damper can reduce the input to the existing building,
Further safety can be secured.
【0032】従って、これらの発明によれば、既存建物
を長期間リフトアップ状態に保持する場合でも、安全性
を確保することが出来、工事期間中にも既存建物の供用
を図れるようになる。Therefore, according to these inventions, the safety can be ensured even when the existing building is held in the lifted-up state for a long time, and the existing building can be used even during the construction period.
【図1】この発明の第一実施例による要部側断面図であ
る。FIG. 1 is a side sectional view of a main part according to a first embodiment of the present invention.
【図2】図1のA矢視断面図である。FIG. 2 is a cross-sectional view taken along arrow A in FIG.
【図3】同第一実施例におけるジャッキアップ作業後の
状態を示す要部側断面図である。FIG. 3 is a side sectional view of an essential part showing a state after a jack-up work in the first embodiment.
【図4】この発明の第二実施例を示す要部側断面図であ
る。FIG. 4 is a side sectional view of a main part showing a second embodiment of the present invention.
【図5】同平断面図である。FIG. 5 is a plan sectional view of the same.
【図6】同第二実施例におけるジャッキアップ作業後の
状態を示す要部側断面図である。FIG. 6 is a side sectional view of an essential part showing a state after jacking up work in the second embodiment.
【図7】この発明の第三実施例を示す要部側面断面図で
ある。FIG. 7 is a side sectional view of a main part showing a third embodiment of the present invention.
1 基礎杭 2 下部基礎 3 地中梁 6 ジャッキ架台 7、20、30 支持体 8 リフトアップジ
ャッキ 9 リフトアップワイヤ 11 仮設基礎 12 仮設架台 32 プッシュアッ
プ用ジャッキ 34 補強桁 40 バットレスフ
レーム 41 防舷材(緩衝用ダンパ)1 Foundation pile 2 Lower foundation 3 Underground beam 6 Jack frame 7, 20, 30 Support 8 Lift up jack 9 Lift up wire 11 Temporary foundation 12 Temporary frame 32 Push up jack 34 Reinforcing girder 40 Buttress frame 41 Fender ( Shock absorber)
Claims (3)
し、該既存建物を所要高さまでジャッキアップする工法
において、 前記既存建物の地中梁の適宜箇所の両側に配置される一
対のジャッキ架台と、該ジャッキ架台の間にあって、前
記地中梁の下部を支持する補強材兼用の支持体と、前記
各ジャッキ架台上に配置され、前記支持体を懸架するリ
フトアップジャッキとを備えて、該リフトアップジャッ
キの上昇動作により前記支持体を上昇させ、 該既存建物の下部基礎の下方には仮設基礎を設けるとと
もに、該仮設基礎上に該下部基礎の周囲を包囲して係合
する仮設架台を設けて、該仮設架台を介して該既存建物
に加わる水平力を地盤側にて支持することを特徴とする
既存建物のジャッキアップ工法。1. A method of separating a lower foundation of an existing building from a ground side and jacking up the existing building to a required height, wherein a pair of jack mounts are arranged on both sides of an appropriate portion of an underground beam of the existing building. A lift-up jack disposed between the jack mounts for supporting the lower part of the underground beam and also serving as a reinforcing member, and a lift-up jack for suspending the supports, The support is raised by the raising operation of the up-jack, and a temporary foundation is provided below the lower foundation of the existing building, and a temporary mount that surrounds and engages the periphery of the lower foundation is provided on the temporary foundation. And a horizontal force applied to the existing building through the temporary mount is supported on the ground side, and a jack-up method for the existing building.
し、該既存建物を所要高さまでジャッキアップする工法
において、 前記既存建物の下部基礎の下方に複数のプッシュアップ
用ジャッキを配置し、該プッシュアップ用ジャッキの上
昇動作により該下部基礎を上昇動作させるとともに、 該仮設基礎上に該下部基礎の周囲を包囲して係合する仮
設架台を設けて、該仮設架台を介して該既存建物に加わ
る水平力を地盤側にて支持することを特徴とする既存建
物のジャッキアップ工法。2. A method of separating a lower foundation of an existing building from a ground side and jacking up the existing building to a required height, wherein a plurality of push-up jacks are arranged below the lower foundation of the existing building and the push-up is performed. The lower foundation is moved up by the raising operation of the up jack, and a temporary mount that surrounds and engages the periphery of the lower base is provided on the temporary base, and joins the existing building through the temporary mount. A jack-up method for existing buildings characterized by supporting horizontal force on the ground side.
介してバットレスフレームを配置したことを特徴とする
請求項1または2記載の既存建物のジャッキアップ工
法。3. The jack-up construction method for an existing building according to claim 1 or 2, wherein a buttress frame is arranged around the existing building via a damper for buffering.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23109295A JP3246287B2 (en) | 1995-09-08 | 1995-09-08 | Jack-up method for existing buildings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23109295A JP3246287B2 (en) | 1995-09-08 | 1995-09-08 | Jack-up method for existing buildings |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0978845A true JPH0978845A (en) | 1997-03-25 |
JP3246287B2 JP3246287B2 (en) | 2002-01-15 |
Family
ID=16918171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23109295A Expired - Fee Related JP3246287B2 (en) | 1995-09-08 | 1995-09-08 | Jack-up method for existing buildings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3246287B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103912136A (en) * | 2014-04-18 | 2014-07-09 | 岩土科技股份有限公司 | Method for heightening indoor spaces of buildings or rectifying deviation thereof |
CN112459529A (en) * | 2020-10-30 | 2021-03-09 | 浙江省建筑设计研究院 | Brick wood building shifting device |
CN113775860A (en) * | 2021-08-06 | 2021-12-10 | 上海二十冶建设有限公司 | Mounting method of steam turbine condenser |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SI2041088T1 (en) | 2006-06-28 | 2014-05-30 | Amgen Inc. | Glycine transporter-1 inhibitors |
-
1995
- 1995-09-08 JP JP23109295A patent/JP3246287B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103912136A (en) * | 2014-04-18 | 2014-07-09 | 岩土科技股份有限公司 | Method for heightening indoor spaces of buildings or rectifying deviation thereof |
CN112459529A (en) * | 2020-10-30 | 2021-03-09 | 浙江省建筑设计研究院 | Brick wood building shifting device |
CN113775860A (en) * | 2021-08-06 | 2021-12-10 | 上海二十冶建设有限公司 | Mounting method of steam turbine condenser |
Also Published As
Publication number | Publication date |
---|---|
JP3246287B2 (en) | 2002-01-15 |
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