JP3133598B2 - Construction method of small and medium-sized building with basement floor - Google Patents

Construction method of small and medium-sized building with basement floor

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Publication number
JP3133598B2
JP3133598B2 JP05330043A JP33004393A JP3133598B2 JP 3133598 B2 JP3133598 B2 JP 3133598B2 JP 05330043 A JP05330043 A JP 05330043A JP 33004393 A JP33004393 A JP 33004393A JP 3133598 B2 JP3133598 B2 JP 3133598B2
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JP
Japan
Prior art keywords
floor
construction
ground
underground
work
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 - Fee Related
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JP05330043A
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Japanese (ja)
Other versions
JPH07150580A (en
Inventor
和彦 谷村
俊明 山本
章司 青木
朝男 小畠
也寸志 藤岡
尚之 久世
Original Assignee
株式会社竹中工務店
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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【産業上の利用分野】本発明は、複合逆打工法、特に地
下階のある中小規模建物の構築工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 composite reverse striking method, and more particularly to a method of constructing a small or medium-sized building having a basement.
【0002】[0002]
【従来の技術】鉄骨鉄筋コンクリート建物における地下
躯体の構築工法には、大別して順打工法と逆打工法とが
ある。中小規模の建物では、順打工法が主流を占めてい
るが、この場合の掘削(根切)工事は、図4及び図5に
示すように、地中に、ソイルセメント柱列、H形鋼と横
矢板、シートパイル等による山止め壁aを施工し、か
つ、適所に構台杭bを打ち込みして地下工事用構台cを
仮設した後、該構台上に送り込んだクラムシェル等の掘
削機械により山止め壁a内の土砂を掘削し、その進捗に
従い山止め壁aの支保工として適宜に切梁支柱dを打ち
込みするととにもに、切梁e、腹起しf等を架設して行
く。而して、掘削の床付け完了後、根切底に地業を施
し、地下躯体を下部から順次に施工しながら、上記切梁
e等を解体して行くものである。また、逆打工法は、図
6に示すように、地中に、ソイルセメント柱列、H形鋼
と横矢板、シートパイル等による山止め壁aを施工し、
かつ、地中各所に構真台柱gで支持した構真柱hを施工
した後、該構真柱で躯体荷重を支えながら、下方へと掘
削工事と躯体工事とを繰り返して行くものである。この
場合、この地下工事と地上工事とを同時進行させること
ができる。
2. Description of the Related Art The method of constructing an underground skeleton in a steel reinforced concrete building is roughly classified into a forward driving method and a reverse driving method. In small- and medium-sized buildings, the progressive driving method occupies the mainstream. In this case, the excavation (root cutting) work is carried out under soil, as shown in Figs. And after constructing the retaining wall a by horizontal sheet pile, sheet pile, etc., and driving the gantry pile b into the appropriate place to temporarily establish the gantry c for the underground construction, the excavation machine such as the clamshell sent to the gantry Excavation of the earth and sand in the retaining wall a, and according to the progress, the cutting beam support d is appropriately driven in as a support for the retaining wall a, and the cutting beam e, the bulging f and the like are erected. . After the excavation flooring is completed, the above-mentioned cutting beams e and the like are dismantled while performing earthwork on the root bottom and constructing the underground frame sequentially from the bottom. In addition, as shown in FIG. 6, the reverse striking method constructs a soil retaining column a in the ground, a retaining wall a made of H-section steel and a horizontal sheet pile, a sheet pile, and the like.
In addition, after the timber pillar h supported by the timber pillar g is constructed in various places under the ground, excavation work and frame work are repeated downward while supporting the frame load with the timber pillar. In this case, the underground construction and the above-ground construction can be performed simultaneously.
【0003】[0003]
【発明が解決しようとする課題】しかし、順打工法の場
合、構台杭、切梁支柱等の支持杭は、地下工事用に必要
なものではあるが、掘削工事や地下躯体工事には障害物
となってしまう欠点があり、まして、掘削面積が小さい
工事では、構台面積の割合が多くなり、地下工事の施工
効率が著しく低下してしまう。また、逆打工法の場合、
中小規模の建物工事では、 1)敷地が狭いため、敷地中央部に構真柱を打つのが困
難である。また、構真柱を1本打つ毎にプラントを移動
しなければならない。 2)工事用重機の活動動線等から見て地下工事と地上工
事とを同時進行させるのは難しい。 3)直接基礎の場合、構真柱が余分に必要である。 4)地下階のある地上鉄骨造の建物の場合、通常、地下
1階部のみを鉄骨鉄筋コンクリート造とし、地下2階部
以深を鉄筋コンクリート造とするが、これに逆打工法を
採用すると、柱部分が基礎下まで全て鉄骨を要し、不経
済である。 5)山止め壁ぎわでは、構真柱を排して、山止め壁に荷
重をもたせることもあるが、通常、上述のように、地下
1階部が採用されているため、この部分の鉄骨建方工事
が発生してしまう。 等々の欠点があり、中小規模の建物工事では逆打工法は
余り採用されていないのが実情である。本発明は、それ
らの欠点を解決しようとするものであり、地下工事用の
構台を無くして、広い地下工事空間を確保し、構真柱を
用いない逆打工法を実現して、地下工事と地上工事の同
時施工を可能にし、もって、地下階のある中小規模建物
の施工効率を向上させ、施工工期を短縮させようとする
ものである。
However, in the case of the progressive driving method, supporting piles such as gantry piles, cutting beam columns, etc. are necessary for underground construction, but they are obstacles for excavation work and underground frame construction. In the construction with a small excavation area, the ratio of the gantry area increases, and the construction efficiency of the underground construction decreases significantly. Also, in the case of the reverse driving method,
In the construction of small and medium-sized buildings: 1) Because the site is small, it is difficult to form a tall pillar in the center of the site. In addition, the plant must be moved each time a straight pillar is hit. 2) It is difficult to carry out underground construction and ground construction at the same time, considering the traffic flow of heavy construction equipment. 3) In the case of direct foundation, extra timber pillars are required. 4) In the case of an above-ground steel-framed building with an underground floor, usually only the first basement is made of steel-framed reinforced concrete, and the second floor and below is reinforced concrete. However, it requires steel frames all the way to the foundation, which is uneconomical. 5) At the gutter wall girder, there is a case where the straight pillar is removed and the gutter wall is given a load. However, as described above, since the first basement is usually used, the steel frame of this portion is used. Construction work will occur. There are several drawbacks, and the fact is that in small and medium-sized buildings, the reverse hitting method is rarely used. The present invention is intended to solve these disadvantages, eliminates the gantry for underground construction, secures a large underground construction space, realizes a reverse striking method that does not use straight columns, The purpose of the present invention is to enable simultaneous construction of ground work, thereby improving the construction efficiency of small and medium-sized buildings with basement floors, and shortening the construction period.
【0004】[0004]
【課題を解決するための手段】上記目的達成のため、本
発明は、地表部に、地上部の建物架構及び工事用重機の
荷重を支持し得るに足る山止め壁のみを施工し、該山止
め壁の上端に上記荷重に耐え得る地上1階部の床梁を架
設するとともに、同地上1階部の床を先行施工し、該先
行床を作業ヤードとして地下躯体のための所要の根切を
、該根切底に山止め壁を受ける基礎スラブを構築し
後、地下及び地上の躯体工事を行うことを特徴とする。
In order to achieve the above-mentioned object, the present invention provides a method for constructing, on a surface of a ground, only a gutter wall sufficient to support a load of a building frame on the ground and heavy construction equipment. At the upper end of the retaining wall, a floor beam on the ground floor that can withstand the above load is erected, and the floor on the ground floor is pre-constructed. Then, after constructing a foundation slab that receives a retaining wall at the root bottom , underground and above-ground framing work is performed.
【0005】[0005]
【作用】如上の構成であるから、地上1階部の床が作業
ヤードをなし、かつ、これを山止め壁が支持して、構
台、支持杭等を無くし、構真柱を用いない逆打工法を実
現する。
[Function] Because of the above configuration, the floor on the first floor above the ground forms a work yard, and this is supported by a retaining wall, eliminating gantry, support piles, etc. Realize the law.
【0006】[0006]
【実施例】図1乃至図3は、本発明の実施例にかかり、
図1(1),(2),(3) は、施工の手順を示している。以下、
この手順を順次に説明する。
1 to 3 show an embodiment of the present invention.
1 (1), (2), and (3) show the procedure of construction. Less than,
This procedure will be described sequentially.
【0007】(1) 地中にソイルセメント柱列による山止
め壁1を施工し、該山止め壁の内側をクラムシェル等の
掘削用重機により第一次掘削して、該山止め壁に地上1
階部の床梁2を架設し、該床梁に連ねて床3を施工す
る。図2、図3に示すように、山止め壁1は、H形鋼11
を芯材とするソイルセメント柱列にて構成するが、特に
地上1階部の各床梁2に対応する数本のソイルセメント
柱、つまり、山止め壁1の床梁対応部1aの上端をその床
梁2の梁せい分だけ低くし、各H形鋼11には、上端プレ
ート12を付設して落とし込む。そして、第一次掘削(根
切)の際には、山止め壁内面のソイルセメントを各H形
鋼11の内面まで内側の土砂と一緒に掘削する。また、同
図に示すように、地上1階部の各床梁2及び床3にあっ
ては、梁鉄骨21の端部に、山止め壁1の前記床梁対応部
1aの上端に対応させて水平の受梁22を一体に設け、梁鉄
骨21の建方において、その受梁22を上記床梁対応部1aの
上端プレート12上に受金物23を介して定着させる。梁鉄
骨21には、地上階の鉄骨架構を結合させる柱用のベース
部材5を設ける。次いで、図示してないが、梁及び床の
型枠(デッキプレート等を含む)、支保工を仮設し、か
つ、梁筋24及び床筋を配筋し、コンクリート4を打設し
て、該コンクリートに所定強度発現後、型枠を解体撤去
する。なお、山止め壁1は、H形鋼と横矢板とで形成し
てもよい。
(1) A dike wall 1 made of soil cement columns is constructed in the ground, and the inside of the dike wall is firstly excavated by a heavy excavating machine such as a clamshell, etc. 1
A floor beam 2 at the floor is erected, and a floor 3 is constructed in connection with the floor beam. As shown in FIGS. 2 and 3, the retaining wall 1 is made of H-shaped steel 11.
Is used as the core material, and in particular, several soil cement columns corresponding to each floor beam 2 on the first floor above the ground, that is, the upper end of the floor beam corresponding portion 1a of the retaining wall 1 The H-shaped steel 11 is dropped by attaching an upper end plate 12 to each H-shaped steel 11. Then, at the time of the first excavation (root cutting), soil cement on the inner surface of the retaining wall is excavated to the inner surface of each H-shaped steel 11 together with the inner soil and sand. Further, as shown in the figure, in each of the floor beams 2 and the floor 3 on the first floor above the ground, an end of the beam steel frame 21 is attached to the floor beam corresponding portion of the retaining wall 1.
A horizontal receiving beam 22 is integrally provided corresponding to the upper end of 1a, and in the construction of the beam steel frame 21, the receiving beam 22 is fixed on the upper end plate 12 of the floor beam corresponding portion 1a via a metal receiving member 23. . The beam steel frame 21 is provided with a column base member 5 for connecting a steel frame structure on the ground floor. Next, although not shown, a beam and a floor formwork (including a deck plate, etc.) and a shoring are temporarily provided, and a beam reinforcement 24 and a floor reinforcement are laid, and concrete 4 is poured into the concrete. After the specified strength is developed on the concrete, the formwork is dismantled and removed. Note that the retaining wall 1 may be formed of an H-section steel and a horizontal sheet pile.
【0008】このように構築した地上1階部の床3は、
作業ヤードに利用し、クラムシェル等の掘削用重機を送
り込んで、山止め壁1内を第二次掘削し、切梁を要する
適宜深さまで掘削する。続いて、作業ヤード上にトラッ
ククレーンを、また、掘削した内部にミニクレーン等の
重機を送り込んで、その内部に腹起し61、切梁62及び切
梁吊材63等の資材を供給し、腹起し61と切梁62とによる
支保工6を組み立てるとともに、地上1階部の各床梁2
の各所から切梁吊材63を垂設して、これらの切梁吊材63
に支保工6を支持させる。
The floor 3 on the first floor above the ground constructed in this way is
Utilizing a work yard, a heavy excavating machine such as a clamshell is sent in, and the inside of the retaining wall 1 is secondarily excavated, and excavation is performed to an appropriate depth where a cutting beam is required. Subsequently, a truck crane on the work yard, and a heavy machine such as a mini crane are sent into the excavated interior, and materials such as a belly 61, a girder 62 and a girder suspension 63 are supplied therein, Assemble the shoring 6 with the bulging 61 and the cutting beam 62, as well as each floor beam 2 on the first floor above the ground.
The hanging beam 63 is suspended from various places in
To support the shoring 6.
【0009】(2) 作業ヤード上にクラムシェル等の掘削
用重機を、また、第二次掘削した内部にブルドーザー等
を送り込んで、山止め壁1内を第三次掘削し、床付け面
まで実施する。
(2) A heavy machine for excavation such as a clamshell is sent onto the work yard, and a bulldozer or the like is sent into the inside of the second excavation. carry out.
【0010】(3) 掘削完了後、その根切底に地業を施
し、基礎スラブ7から上方へ順次に地下躯体を構築する
と同時に、作業ヤード上にクレーン車を送り込んで、地
上階の鉄骨架構8を、地上1階部の柱鉄骨を地上1階部
の床梁2の梁鉄骨21に設けた前記柱用のベース部材5に
連ねて、上方へと順次に建方する。つまり、地下躯体工
事と地上躯体工事とが、材料搬入でオーバーラップする
だけとなるため、同時進行が可能となる。
(3) After the excavation is completed, ground work is performed on the bottom of the excavation, and an underground skeleton is sequentially constructed upward from the foundation slab 7, and at the same time, a crane truck is sent to the work yard, and a steel frame on the ground floor is sent. 8 is connected to the column base member 5 provided on the beam steel structure 21 of the floor beam 2 on the first floor above the ground, and is sequentially built upward. In other words, the underground framing work and the above-ground framing work only overlap when the materials are loaded, so that simultaneous progress is possible.
【0011】[0011]
【発明の効果】本発明によれば、以下の効果を奏する。 a.地上1階部の先行床を山止め壁のみで支持するた
め、各種支持柱、構真柱等が不要で、掘削面内には何も
障害物がなく、掘削工事効率を大幅に向上させることが
できる。例えば、敷地が繁華街の裏道でスクランブル交
差点に面した25m×12mの面積の工事ヤードによる
非公開適用工事では、第三次掘削時で、250m3 /日
の掘削を実証できた。したがって、従来の順打工法の掘
削に比べてほぼ2倍の掘削効率とすることができる。 b.構真柱が不要であり、狭い敷地内で杭を打つための
プラントの移動等を要せず、工事を簡素化、容易化でき
る。 c.構真柱が不要であるから、従来の逆打工法のように
地下躯体の鉄骨量が増えることはない。 d.地下のある地上鉄骨造の建物の場合、従来は、通
常、少なくとも地下1階部の躯体が鉄骨鉄筋コンクリー
ト造となるが、本工法では、地下1階部の柱の柱頭を鉄
筋コンクリートで設計することにより、地上1階部の先
行床施工後の地下工事において、鉄骨工事を省略するこ
とができる。上記非公開適用工事では、地上1階部の床
梁補強のために増加した梁の鉄骨量が地下1階部の柱鉄
骨を省略したことで帳消しにできた。 e.小規模工事でも、地上工事と地下工事の同時進行が
可能となる。 f.掘削完了後、地上躯体工事を開始することができる
が、地上工事の内、床コンクリート打設を地下躯体工事
完了後に行うように、工程計画することで、地上1階部
の床梁補強が理に叶った範囲で収まる。 g.コスト面では、構真柱を省略できること及び地下を
鉄筋コンクリート造で設計していることで、従来コスト
以内に十分に収めることができる。 h.地下工事の各段階で、工事の障害物となるものがな
いから、地下躯体の生産性が地上工事と同じに行え、地
下工事の生産性を、躯体工事において15%、掘削工事
において50%、上昇させることができる。 i.生産性の向上及び地上工事と地下工事の同時進行が
可能となり、20%程度の工期短縮が可能となる。上記
非公開適用工事では、約 1.5ヵ月であった。
According to the present invention, the following effects can be obtained. a. Since the preceding floor on the first floor above the ground is supported only by retaining walls, there is no need for various support columns, timber columns, etc., there are no obstacles in the excavation surface, and the excavation efficiency is greatly improved. Can be. For example, in a non-disclosure application construction using a 25m × 12m construction yard whose site faces a scramble intersection on a backstreet in a downtown area, at the time of the third excavation, 250 m3 / day excavation was demonstrated. Therefore, the excavation efficiency can be substantially doubled as compared with the excavation of the conventional forward driving method. b. There is no need for straight pillars, and there is no need to move the plant for hitting piles in a narrow site, thus simplifying and facilitating construction. c. Since timber columns are not required, the amount of steel frames in the underground skeleton does not increase unlike the conventional reverse driving method. d. Conventionally, in the case of an underground steel-framed building with an underground, at least the frame on the first basement is usually made of reinforced concrete, but in this method, the capitals of the columns on the first basement are designed with reinforced concrete. In the underground construction after the construction of the preceding floor on the first floor, the steelwork can be omitted. In the above non-disclosure application work, the amount of steel frame of the beam increased to reinforce the floor beam on the first floor above ground was canceled out by omitting the column steel frame on the first floor below ground. e. Ground work and underground work can be performed simultaneously even for small-scale work. f. After the excavation is completed, ground work can be started. However, of the ground work, floor concrete reinforcement is to be performed on the first floor above the ground by performing a process plan so that concrete placement is performed after the underground structure work is completed. It fits in the range that came true. g. In terms of cost, since the pillars can be omitted and the basement is made of reinforced concrete, the cost can be kept sufficiently within the conventional cost. h. At each stage of underground construction, there is no obstacle to the construction, so the productivity of the underground skeleton can be performed in the same way as the ground work, and the productivity of the underground construction can be reduced by 15% for the skeleton work, 50% for the excavation work, Can be raised. i. The productivity can be improved, and the above-ground work and underground work can be performed simultaneously, and the construction period can be shortened by about 20%. It took about 1.5 months for the above non-disclosed works.
【図面の簡単な説明】[Brief description of the drawings]
【図1】 本発明の地下階のある中小規模建物の構築
工法の実施例を示す手順説明図である。
FIG. 1 is an explanatory diagram showing a procedure of an embodiment of a construction method of a small-to-medium-sized building having a basement floor according to the present invention.
【図2】 同例要部の具体的構成を示す截断側面図で
ある。
FIG. 2 is a sectional side view showing a specific configuration of a main part of the example.
【図3】 同要部の具体的構成に係る截断平面図であ
る。
FIG. 3 is a cut-away plan view according to a specific configuration of the main part.
【図4】 従来の順打工法を示す截断側面図である。FIG. 4 is a sectional side view showing a conventional forward driving method.
【図5】 同例の平面図である。FIG. 5 is a plan view of the same example.
【図6】 従来の逆打工法を示す截断側面図である。FIG. 6 is a sectional side view showing a conventional reverse driving method.
【符号の説明】[Explanation of symbols]
1…山止め壁 1a…床梁対応部 2…床
梁 3…床 4…コンクリート 5…ベ
ース部材 6…支保工 7…基礎スラブ 8…鉄
骨架構 11…H形鋼 12…上端プレート 21…梁
鉄骨 22…受梁 23…受金物 24…梁
筋 61…腹起し 62…切梁 63…切
梁吊材 a…山止め壁 b…構台杭 c…地
下工事用構台 d…切梁支柱 e…切梁 f…腹
起し g…構真台柱 h…構真柱
DESCRIPTION OF SYMBOLS 1 ... Girder stop wall 1a ... Floor beam corresponding part 2 ... Floor beam 3 ... Floor 4 ... Concrete 5 ... Base member 6 ... Support 7 ... Foundation slab 8 ... Steel frame structure 11 ... H-shaped steel 12 ... Top plate 21 ... Beam steel frame 22 ... Receiver 23 ... Receiving object 24 ... Beam reinforcement 61 ... Bending up 62 ... Cut beam 63 ... Cut beam hanging material a ... Girder retaining wall b ... Gantry pile c ... Girder for underground construction d ... Cut beam support e ... Cut Beam f: Upset g: Standing pillar h: Standing pillar
フロントページの続き (72)発明者 小畠 朝男 愛知県名古屋市中区錦一丁目18番22号 株式会社 竹中工務店 名古屋支店内 (72)発明者 藤岡 也寸志 愛知県名古屋市中区錦一丁目18番22号 株式会社 竹中工務店 名古屋支店内 (72)発明者 久世 尚之 愛知県名古屋市中区錦一丁目18番22号 株式会社 竹中工務店 名古屋支店内 (56)参考文献 特開 平4−319121(JP,A) 特開 平5−140957(JP,A) (58)調査した分野(Int.Cl.7,DB名) E02D 29/045 - 29/055 E04B 1/35 Continued on the front page (72) Inventor Asao Kobata 18-18-22 Nishiki, Naka-ku, Nagoya-shi, Aichi Takenaka Corporation Nagoya Branch (72) Inventor Yasushi Fujioka 1-18 Nishiki, Naka-ku, Nagoya-shi, Aichi No. 22 Takenaka Corporation Nagoya Branch (72) Inventor Naoyuki Kuze 1-18-22 Nishiki, Naka-ku, Nagoya City, Aichi Prefecture Takenaka Corporation Nagoya Branch (56) References JP-A-4-319121 (JP, A) JP-A-5-140957 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E02D 29/045-29/055 E04B 1/35

Claims (1)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】地表部に、地上部の建物架構及び工事用重
    機の荷重を支持し得るに足る山止め壁のみを施工し、該
    山止め壁の上端に上記荷重に耐え得る地上1階部の床梁
    を架設するとともに、同地上1階部の床を先行施工し、
    該先行床を作業ヤードとして地下躯体のための所要の根
    切をし、該根切底に山止め壁を受ける基礎スラブを構築
    た後、地下及び地上の躯体工事を行うことを特徴とす
    る地下階のある中小規模建物の構築工法。
    1. A ground retaining wall which is capable of supporting a load of a building frame and a heavy equipment for construction on the ground portion on a ground surface portion, and a first floor above the ground capable of withstanding the load is provided at an upper end of the retaining wall. And the first floor of the same floor will be pre-constructed,
    Using the preceding floor as a work yard, make necessary excavations for the underground skeleton, and build a foundation slab that receives a retaining wall at the excavated bottom
    After the construction method of the small building in which a basement floor which is characterized in that the precursor construction of underground and above ground.
JP05330043A 1993-11-30 1993-11-30 Construction method of small and medium-sized building with basement floor Expired - Fee Related JP3133598B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05330043A JP3133598B2 (en) 1993-11-30 1993-11-30 Construction method of small and medium-sized building with basement floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05330043A JP3133598B2 (en) 1993-11-30 1993-11-30 Construction method of small and medium-sized building with basement floor

Publications (2)

Publication Number Publication Date
JPH07150580A JPH07150580A (en) 1995-06-13
JP3133598B2 true JP3133598B2 (en) 2001-02-13

Family

ID=18228139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05330043A Expired - Fee Related JP3133598B2 (en) 1993-11-30 1993-11-30 Construction method of small and medium-sized building with basement floor

Country Status (1)

Country Link
JP (1) JP3133598B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2797963B2 (en) * 1994-05-06 1998-09-17 鹿島建設株式会社 Construction method of building perimeter column in reverse beating method
JP3244006B2 (en) * 1996-10-16 2002-01-07 株式会社大林組 Construction method of perimeter beam of basement floor
JP4050816B2 (en) * 1997-12-16 2008-02-20 株式会社フジタ Construction method of underground part of steel reinforced concrete building
CN104179253B (en) * 2014-08-21 2016-09-14 上海建工五建集团有限公司 First up and then down sales office's construction method

Also Published As

Publication number Publication date
JPH07150580A (en) 1995-06-13

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