JP2544104Y2 - Underground outer wall using PCa board - Google Patents
Underground outer wall using PCa boardInfo
- Publication number
- JP2544104Y2 JP2544104Y2 JP4177491U JP4177491U JP2544104Y2 JP 2544104 Y2 JP2544104 Y2 JP 2544104Y2 JP 4177491 U JP4177491 U JP 4177491U JP 4177491 U JP4177491 U JP 4177491U JP 2544104 Y2 JP2544104 Y2 JP 2544104Y2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- underground
- pca
- retaining wall
- pca plate
- 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
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、建築構造物における地
下躯体の外壁プレハブ化に特長を有するPCa板を用い
た地下外壁に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground outer wall using a PCa plate which has a feature in prefabricating an outer wall of an underground skeleton in a building structure.
【0002】[0002]
【従来の技術】従来、建築構造物における地下躯体の周
囲の地下外壁は、図2に示すように地下にH鋼横矢板等
で土留め壁11を設け、土留め壁11の内部を根切り掘
削して形成した地下室Sの底部に地下基礎12を施工
し、土留め壁11を外側型枠としその内側に間隔を置き
内側型枠13を平行に建て込み、内側型枠13を地下基
礎12及び建築構造物20の鉄骨梁20aの周囲に固着
して組込み、土留め壁11と内側型枠13間に配筋しコ
ンクリートを打設して、地下躯体の周囲に地下外壁15
を構築し、又は、地中連続壁(図示省略)を山留兼構造
躯体として用いる工法も提案され実施されている。2. Description of the Related Art Conventionally, as shown in FIG. 2, an underground outer wall around an underground skeleton in a building structure is provided with an earth retaining wall 11 under the basement of H steel horizontal sheet pile, and the inside of the earth retaining wall 11 is cut off. The underground foundation 12 is constructed at the bottom of the excavated basement S, the retaining wall 11 is used as the outer formwork, and the inner formwork 13 is laid in parallel with the inner formwork at the inner side thereof. And, it is fixed to the periphery of the steel beam 20a of the building structure 20 and incorporated, and the reinforcement is arranged between the retaining wall 11 and the inner formwork 13 and concrete is cast, and the underground outer wall 15 is placed around the underground skeleton.
Or a construction method using underground continuous walls (not shown) as a ridge and a structural frame has been proposed and implemented.
【0003】[0003]
【考案が解決しようとする課題】従来の上記地下外壁
は、建築構造物の鉄骨等が配設されている地下室内の外
周に配筋し、形枠を建て込みコンクリートを打設して構
築されるため、多くの部材、手数、手間を必要とする面
倒な作業となり、長期の養生期間を要し、躯体工事の進
行に多大な影響を及ぼし工期が長期化するなどの問題点
がある。また、前記地中連続壁は、大型の機械を必要と
し大規模な工事となり、その内面側を地下躯体に固着し
たり、仕上げ施工が必要になるなどの問題点がある。[Problems to be Solved by the Invention] The above-mentioned conventional underground outer wall is constructed by arranging reinforcing bars on the outer periphery of an underground room where a steel frame or the like of a building structure is arranged, and embedding a formwork and casting concrete. Therefore, it is troublesome work requiring many members, time and labor, requires a long curing period, has a great influence on the progress of frame construction, and has a problem that the construction period is lengthened. In addition, the underground continuous wall requires a large-scale machine and requires a large-scale construction, and has a problem that an inner surface thereof is fixed to an underground skeleton and a finishing construction is required.
【0004】本考案は、上記のような課題に対処するた
めに開発されたものであつて、その目的とする処は、P
Ca板を建築構造物の地下躯体の周囲に固着して地下外
壁の型枠兼構築部材とし、地下外壁及び建築構造物の施
工合理化、工期短縮とともに、外壁性能及び信頼性の向
上したPCa板を用いた地下外壁を提供するにある。[0004] The present invention has been developed in order to address the above-mentioned problems, and the purpose thereof is as follows.
The Ca plate is fixed around the underground skeleton of the building structure and used as a formwork and a building member for the underground outer wall, and the PCa plate with improved outer wall performance and reliability, as well as streamlining the construction of the underground outer wall and the building structure and shortening the construction period. To provide the underground outer wall used.
【0005】[0005]
【課題を解決するための手段】本考案は、土留め壁の内
面側にPCa板を間隔を置き平行に配置して、PCa板
の上下部を建築構造物の地下基礎及び地下外周躯体に固
着して建て込み、土留め壁とPCa板間に裏込めコンク
リートを打設して一体に構築し、地下外壁及び建築構造
物の施工を合理化し、その外壁性能、信頼性を向上して
いる。According to the present invention, PCa plates are arranged in parallel on the inner surface side of the retaining wall at intervals and the upper and lower portions of the PCa plate are fixed to the underground foundation and the underground outer frame of the building structure. The building is integrated, and backfill concrete is poured between the retaining wall and the PCa plate to be integrally constructed, thereby streamlining the construction of the underground outer wall and the building structure, and improving the outer wall performance and reliability.
【0006】[0006]
【作用】土留め壁の内面側にPCa板を間隔を置き平行
に配置して、PCa板の上下部を建築構造物の地下基礎
及び地下外周躯体に固着して建て込み、土留め壁とPC
a板間に裏込めコンクリートを打設し、一体に接合構築
された合成外壁として容易、迅速に構築され、型枠、外
壁の内面仕上、養生期間等が不要となり、鉄筋工事が簡
素化されて、内部の建設作業が継続されるなど、大幅に
省力化され工期が短縮される。また、その合成外壁は、
土圧、水圧等の面外力を強力な耐力、剛性で受け止めて
地下基礎に伝達し、そのPCa板のコンクリートは緻
密、均等に養生、形成されているため、表面仕上げが不
要となり、裏込めコンクリート部分の配筋調節により所
望強度が確保されるなど、優れた外壁性能、信頼性が得
られる。[Function] PCa boards are arranged in parallel on the inner side of the retaining wall at intervals, and the upper and lower portions of the PCa board are fixedly attached to the underground foundation and the underground outer peripheral frame of the building structure.
aPut backfill concrete between the boards, easily and quickly constructed as a composite outer wall integrally bonded and constructed, eliminating the need for formwork, inner wall finishing, curing period, etc., and simplifying rebar construction. As a result, the internal construction work is continued, so that labor is greatly reduced and the construction period is shortened. Also, the composite outer wall is
Out-of-plane forces such as earth pressure and water pressure are received with strong proof strength and rigidity and transmitted to the underground foundation. The concrete of the PCa board is densely and evenly cured and formed. Excellent outer wall performance and reliability can be obtained, for example, a desired strength is secured by adjusting the arrangement of the reinforcing bars.
【0007】[0007]
【実施例】図1に本考案の一実施例を示し、図中1は土
留め壁、2はPCa板、3,4はPCa板2の上下部の
固着用金具、5は地下室Sの底部に施工された地下基
礎、6は地下室S内に構築された建築構造物の地下躯体
の周囲に配設された鉄骨梁、7は敷きモルタル、Cは裏
込めコンクリートであつて、土留め壁1の内面側にPC
a板2を間隔を置き平行に配置して、PCa板2の上下
部を建築構造物の地下基礎5及び地下外周躯体(鉄骨
梁)6に固着用金具3,4で固着して建て込み、土留め
壁1とPCa板2間に裏込めコンクリートCを打設して
一体に構築されたPCa板を用いた地下外壁になつてい
る。FIG. 1 shows an embodiment of the present invention, in which 1 is a retaining wall, 2 is a PCa plate, 3 and 4 are fixing brackets at the upper and lower portions of the PCa plate 2, and 5 is a bottom portion of the basement S. 6 is a steel beam provided around the underground skeleton of the building structure constructed in the basement S, 7 is laid mortar, C is backfill concrete, and the retaining wall 1 PC on the inner side of
The a-plates 2 are arranged in parallel at intervals, and the upper and lower portions of the PCa-plates 2 are fixed to the underground foundation 5 and the underground peripheral frame (steel beam) 6 of the building structure by fixing metal fittings 3, 4, and built. A backfill concrete C is cast between the retaining wall 1 and the PCa plate 2 to form an underground outer wall using an integrally constructed PCa plate.
【0008】さらに詳述すると、土留め壁1は、H鋼横
矢板、SMW、シートパイル等で施工された山留め壁で
あつて、その内側を根切り掘削して地下室Sとし、地下
室Sの底部に施工された連続基礎(布基礎)5で自立さ
れる。PCa板2は、工場等で予め製造されたプレキヤ
スト鉄筋コンクリート造になつており、配筋によつて補
強され、背面側に凹又は凸型のシヤーコツター(図示省
略)を形成して裏込めコンクリートCとの接合性を高
め、表面側は適宜の手段で仕上げ加工されたPCa版、
又はオムニア版等の半PCa板とし、さらに、その上、
下部にボルト3a,アングル材3b等からなる固着用金
具3、アングル材4a,4b等からなる固着用金具4が
配設される構造になつており、土留め壁1の内側に裏込
めコンクリートC打設部分の配筋をしたのち、当該PC
a板2は、土留め壁1の内側に所望の間隔を置き配置さ
れ、その上、下部を建築構造物の地下基礎5及び地下躯
体の周囲(例えば鉄骨梁)6に固着用金具3、4で図示
のように固着して建て込まれ、PCa板2の下部と地下
基礎5の周囲間に敷きモルタル7を充填し、土留め壁1
とPCa板2間に裏込めコンクリートCを打設して、裏
込めコンクリートが一体に接合した合成外壁として構築
される。図中10は現場打ち床スラブである。[0008] More specifically, the earth retaining wall 1 is a mountain retaining wall constructed of a H steel horizontal sheet pile, SMW, sheet pile, or the like. On the continuous foundation (cloth foundation) 5 constructed on the floor. The PCa plate 2 is made of precast reinforced concrete manufactured in advance at a factory or the like, is reinforced by reinforcing bars, and forms a concave or convex shear coater (not shown) on the rear side to form a backfill concrete C. PCa version, the surface side of which is finished by appropriate means,
Or a semi-PCa plate such as an Omnia version, and furthermore,
At the lower part, a fixing metal member 3 made of bolts 3a, angle members 3b, etc., and a fixing metal member 4 made of angle members 4a, 4b, etc., are arranged. After arranging the placement part, the PC
The a plate 2 is arranged at a desired interval inside the retaining wall 1, and the lower and upper portions thereof are fixed to the underground foundation 5 of the building structure and the periphery (for example, a steel beam) 6 of the underground frame 6. The mortar 7 is laid between the lower part of the PCa plate 2 and the periphery of the underground foundation 5 to fill the mortar 7 and the retaining wall 1
The backfill concrete C is cast between the PCa board 2 and the backfill concrete, and the backfill concrete is constructed as a composite outer wall integrally joined. In the figure, reference numeral 10 denotes a cast-in-place slab.
【0009】上記地下外壁の構築に際し、PCa板2と
土留め壁1が内、外側型枠として兼用され、その間に裏
込めコンクリートCを打設するだけで地下外壁が容易、
迅速に構築されるとともに、地下外壁の内側に配置され
たPCa板によつて、型枠の取り外し、外壁の内面仕上
げ、養生期間等が不要となり、鉄筋工事が簡素化され、
内部の建設作業が継続されるなど、大幅に資材が節減さ
れて省力化され工期が短縮される。In constructing the above-mentioned underground outer wall, the PCa plate 2 and the retaining wall 1 are also used as the inner and outer formwork, and the underground outer wall can be easily formed only by casting the backfill concrete C therebetween.
In addition to being built quickly, the PCa plate located inside the underground outer wall eliminates the need for formwork removal, inner wall finishing, curing period, etc., and simplifies rebar construction,
Significant savings in materials, such as continued internal construction work, save labor and shorten the construction period.
【0010】上記合成外壁は、土留め壁1、裏込めコン
クリートC、さらにPCa板2が一体に接合された構成
となり、その地下外壁にかかる土圧、水圧等の面外力を
強力な耐力、剛性で受け止めて地下基礎5下に伝達し、
PCa板2のコンクリートは緻密、均等に養生、形成さ
れているため、防水性を有し結露対策が容易となり、裏
込めコンクリートC部分の配筋調節により所望の強度が
確保されるなどの特長を有し、外壁性能、信頼性が格段
に向上される。The composite outer wall has a structure in which a retaining wall 1, a backfill concrete C, and a PCa plate 2 are integrally joined, and a strong proof strength and rigidity against an out-of-plane force such as earth pressure and water pressure applied to the underground outer wall. And transfer it to underground foundation 5
Since the concrete of the PCa board 2 is densely and evenly cured and formed, it has waterproofness, makes it easy to take measures against dew condensation, and secures the desired strength by adjusting the reinforcement arrangement of the backfill concrete C portion. And the outer wall performance and reliability are remarkably improved.
【0011】[0011]
【考案の効果】本考案は、上述のような構成になつてお
り、土留め壁の内面側にPCa板を間隔を置き平行に配
置して、PCa板の上下部を建築構造物の地下基礎及び
地下外周躯体に固着して建て込み、土留め壁とPCa板
間に裏込めコンクリートを打設し、一体に接合構築され
た合成外壁として容易、迅速に構築され、型枠、外壁の
内面仕上、養生期間等が不要となり、鉄筋工事が簡素化
され、内部の建設作業が継続されるなど、大幅に省力化
され工期が短縮される。また、その合成外壁は、土圧、
水圧等の面外力を強力な耐力、剛性で受け止めて地下基
礎に伝達し、そのPCa板によつて防水性が高められ結
露対策が容易となり、裏込めコンクリート部分の配筋調
節により所望の強度が確保されるなど、建築構造物の施
工の合理化とともに、外壁性能及び信頼性が向上されて
いる。[Effects of the Invention] The present invention has the above-described configuration, in which PCa plates are arranged in parallel at intervals on the inner surface side of the retaining wall, and the upper and lower portions of the PCa plate are placed underground foundations of a building structure. And it is fixed to the underground outer frame and built in, and backfill concrete is poured between the retaining wall and the PCa board, and it is easily and quickly constructed as a synthetic outer wall that is integrally joined and constructed, and the inner surface finish of the formwork and outer wall In addition, the curing time is not required, the rebar construction is simplified, and the internal construction work is continued. Also, the synthetic outer wall is earth pressure,
The out-of-plane force such as water pressure is received with strong proof strength and rigidity and transmitted to the underground foundation, and its PCa plate enhances waterproofing and makes it easy to take measures against dew condensation. As a result, the external wall performance and reliability have been improved along with the streamlining of the construction of the building structure.
【図1】本考案の一実施例を示す縦断面図(A)と上下
部の拡大縦断面図(B),(C)FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention (A) and enlarged longitudinal sectional views of upper and lower portions (B) and (C).
【図2】従来例を示す縦断面機構図である。FIG. 2 is a longitudinal sectional mechanism diagram showing a conventional example.
【符号の説明】 1 土留め壁 2 PCa板 3,4 固着用金具 5 地下基礎 C 裏込めコンクリート[Description of Signs] 1 Earth retaining wall 2 PCa plate 3, 4 Fixing bracket 5 Underground foundation C Backfill concrete
Claims (1)
き平行に配置して、同PCa板の上下部を建築構造物の
地下基礎及び地下外周躯体に固着して建て込み、前記土
留め壁と前記PCa板間に裏込めコンクリートを打設し
て一体に構築したことを特徴とするPCa板を用いた地
下外壁。1. A PCa plate is arranged in parallel at intervals on the inner surface side of a retaining wall, and the upper and lower portions of the PCa plate are fixedly attached to an underground foundation and an underground outer peripheral frame of a building structure, and are built. An underground outer wall using a PCa plate, wherein a backfill concrete is cast between the retaining wall and the PCa plate to be integrally formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4177491U JP2544104Y2 (en) | 1991-05-10 | 1991-05-10 | Underground outer wall using PCa board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4177491U JP2544104Y2 (en) | 1991-05-10 | 1991-05-10 | Underground outer wall using PCa board |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0577321U JPH0577321U (en) | 1993-10-22 |
JP2544104Y2 true JP2544104Y2 (en) | 1997-08-13 |
Family
ID=12617727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4177491U Expired - Lifetime JP2544104Y2 (en) | 1991-05-10 | 1991-05-10 | Underground outer wall using PCa board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2544104Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100477623B1 (en) * | 2004-12-22 | 2005-03-23 | (주) 파주서원종합건축사사무소 | Suppotrer wall sturcture of underground construction for building |
JP6202728B2 (en) * | 2013-06-26 | 2017-09-27 | 株式会社竹中工務店 | Underground formation method |
-
1991
- 1991-05-10 JP JP4177491U patent/JP2544104Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0577321U (en) | 1993-10-22 |
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