JPH0577321U

JPH0577321U - Underground outer wall using PCa board

Info

Publication number: JPH0577321U
Application number: JP4177491U
Authority: JP
Inventors: 康夫塚田; 仁彦森田
Original assignee: Taisei Corp
Current assignee: Taisei Corp
Priority date: 1991-05-10
Filing date: 1991-05-10
Publication date: 1993-10-22
Anticipated expiration: 2006-05-10
Also published as: JP2544104Y2

Abstract

(57)【要約】（修正有）【目的】ＰＣａ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。【構成】土留め壁１の内面側にＰＣａ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した構造に特徴を有す
る。 (57) [Summary] (Corrected) [Purpose] PCa boards are fixed around the underground structure of the building structure to serve as a formwork and construction member for the underground wall, rationalizing the construction of the underground wall and building structure, and shortening the construction period. At the same time, it is intended to provide an underground outer wall using a PCa plate having improved outer wall performance and reliability. [Structure] PCa boards 2 are arranged in parallel on the inner surface side of the earth retaining wall 1 at intervals, and the upper and lower parts of the PCa boards 2 are fixed to the underground foundation 5 and the underground perimeter skeleton of the building structure with metal fittings 3 and 4. It is characterized by a structure in which it is fixed and built in, and backfilling concrete C is placed between the earth retaining wall 1 and the PCa plate 2 to be integrally constructed.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

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。 The present invention relates to an underground outer wall using a PCa plate, which has a feature of prefabricating an outer wall of an underground skeleton in a building structure.

【０００２】[0002]

【従来の技術】[Prior Art]

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。 Conventionally, the underground outer wall around the underground structure in a building structure is formed by excavating the inside of the earth retaining wall 11 by arranging the earth retaining wall 11 with H steel horizontal sheet pile or the like as shown in FIG. The underground foundation 12 is constructed on the bottom of the basement S, and the earth retaining wall 11 is used as the outer formwork, and the inner formwork 13 is built in parallel with the space inside the earth retaining wall 11, and the inner formwork 13 is used as the underground foundation 12 and the building structure. 20 is fixedly installed around the steel beam 20a, and the concrete is laid between the earth retaining wall 11 and the inner formwork 13 to construct an outer underground wall 15 around the underground structure, or A method of using a continuous wall (not shown) as a mountain retaining structure is also proposed and implemented.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

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。 The above-mentioned conventional underground outer wall is constructed by arranging around the outer periphery of the underground room where the steel frames of the building structure etc. are arranged, constructing a frame and placing concrete, so many members, labor, This is a troublesome work, requires a long curing period, has a great influence on the progress of the construction work, and has a problem that the construction period is prolonged. In addition, the underground continuous wall requires a large-scale machine and is a large-scale construction, and there are problems that the inner surface side is fixed to the underground structure and finishing work 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、ＰＣａ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。The present invention was developed to address the above-mentioned problems, and the purpose thereof is to fix PCa plates around the underground structure of a building structure to fix the external wall of the underground structure. As a formwork / construction member, the purpose is to provide a basement exterior wall using PCa boards with improved exterior wall performance and reliability, as well as rationalizing the construction of the basement exterior wall and building structures and shortening the construction period.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

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 boards are arranged in parallel with each other on the inner surface side of the earth retaining wall, and the upper and lower parts of the PCa boards are fixedly attached to the underground foundation and the underground perimeter frame of the building structure to construct the earth retaining wall. The backfilling concrete is placed between the PCa boards and built integrally to rationalize the construction of the underground outer wall and the building structure, and improve the performance and reliability of the outer wall.

【０００６】[0006]

【作用】[Action]

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。 PCa boards are arranged parallel to each other on the inner surface side of the earth retaining wall, and the upper and lower parts of the PCa boards are fixedly attached to the underground foundation and the outer perimeter frame of the building structure, and the space between the earth retaining wall and the PCa board is fixed. It is easy and quick to construct as a synthetic outer wall that is constructed by joining backfilled concrete into one body and joining it integrally, eliminating the need for formwork, inner wall finishing of the outer wall, curing period, etc., simplifying the steel reinforcement work, The internal construction work will continue and labor will be saved significantly, shortening the construction period. In addition, the composite outer wall receives out-of-plane forces such as earth pressure and water pressure with strong proof strength and rigidity, and transmits it to the underground foundation. The concrete of the PCa plate is dense and evenly cured and formed, so the surface It does not require finishing, and the desired strength is secured by adjusting the bar arrangement of the backfill concrete part, resulting in excellent outer wall performance and reliability.

【０００７】[0007]

【実施例】【Example】

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ＰＣａ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 an earth retaining wall, 2 is a PCa plate, 3 and 4 are fixing metal fittings on the upper and lower parts of the PCa plate 2, and 5 is a bottom of a basement S. Underground foundation, 6 are steel beams arranged around the underground structure of the building structure built in the basement S, 7 is laying mortar, C is backfill concrete, and it is on the inner surface side of the retaining wall 1. PCa boards 2 are arranged in parallel at intervals, and the upper and lower parts of the PCa boards 2 are fixed to the underground foundation 5 and the underground perimeter frame (steel beam) 6 of the building structure with the fixing metal fittings 3 and 4 and built. A backfilling concrete C is placed between the earth retaining wall 1 and the PCa plate 2 to form an underground outer wall using the PCa plate integrally constructed.

【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ＰＣａ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。More specifically, the earth retaining wall 1 is a mountain retaining wall made of H steel horizontal sheet pile, SMW, sheet pile and the like, and the inside of the earth retaining wall is excavated to form a basement S, and a basement S It is self-supporting with a continuous foundation (cloth foundation) 5 constructed on the bottom. The PCa plate 2 is made of precast reinforced concrete that is manufactured in advance in factories, etc. It is reinforced by reinforcing bars and a concave or convex shear cotter (not shown) is formed on the back side to form a backfill concrete C. , A semi-PCa plate such as a PCa plate or an Omnia plate finished on the surface side by an appropriate means, and further, a fixing metal fitting including a bolt 3a, an angle member 3b, etc. on the lower part thereof. 3 and angle members 4a, 4b, etc., the structure for arranging the fixing metal fittings 4 is provided. After the backfilling concrete C placing portion is laid inside the earth retaining wall 1, the PCa The plate 2 is arranged at a desired distance inside the earth retaining wall 1, and the lower part of the plate 2 is fixed to the underground foundation 5 of the building structure and the periphery (for example, a steel beam) 6 of the building structure with the metal fittings 3 and 4. Secured as shown The mortar 7 is filled between the lower part of the PCa board 2 and the surrounding of the underground foundation 5, and the backfill concrete C is placed between the earth retaining wall 1 and the PCa board 2 so that the backfill concrete is integrated. Constructed as a bonded composite outer wall. In the figure, 10 is 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。When constructing the above-mentioned underground outer wall, the PCa board 2 and the earth retaining wall 1 are also used as the inner and outer formwork, and by simply placing the backfill concrete C between them, the underground outer wall can be easily and quickly constructed. In addition, the PCa plate placed inside the outer wall of the basement eliminates the need to remove the formwork, finish the inner surface of the outer wall, and the curing period. This simplifies the reinforcing bar work and continues the internal construction work. , The material will be greatly saved, labor will be saved, and the construction period will be shortened.

【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 construction in which the earth retaining wall 1, the backfill concrete C, and the PCa plate 2 are joined together as one body, and the out-of-plane force such as earth pressure and water pressure applied to the underground outer wall is strongly proof, It is received rigidly and transmitted to the bottom of the underground foundation 5, and the concrete of the PCa plate 2 is dense and evenly cured and formed, so it is waterproof and easy to prevent dew condensation, and the bar arrangement of the backfill concrete C part is adjusted. This has features such as the desired strength being secured, and the outer wall performance and reliability are greatly 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 is configured as described above, and PCa boards are arranged in parallel on the inner surface side of the earth retaining wall with a space between them, and the upper and lower portions of the PCa boards are underground in the building structure. It can be easily and quickly constructed as a composite outer wall that is integrally bonded by building it by fixing it to the foundation and the exterior of the basement and building it, and placing the backfilling concrete between the earth retaining wall and the PCa plate. No internal finishing or curing period is required, and the reinforcing bar work is simplified and the internal construction work is continued, resulting in significant labor savings and a shorter construction period. In addition, the composite outer wall receives out-of-plane forces such as earth pressure and water pressure with strong proof strength and rigidity, and transmits it to the underground foundation. The PCa plate enhances waterproofness and makes it easy to prevent dew condensation and backfill concrete. Outer wall performance and reliability are improved along with the rationalization of construction of building structures, such as the desired strength being secured by adjusting the bar arrangement of parts.

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

【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 vertical sectional view (A) showing an embodiment of the present invention and enlarged vertical sectional views (B) and (C) of the upper and lower parts.

【図２】従来例を示す縦断面機構図（Ａ）とその平面機
構図（Ｂ）である。2A and 2B are a longitudinal sectional view (A) and a plan view (B) showing a conventional example.

【符号の説明】[Explanation of symbols]

１土留め壁２ＰＣａ板３，４固着用金具５地下基礎Ｃ裏込めコンクリート 1 Earth retaining wall 2 PCa board 3, 4 Fixing metal fittings 5 Underground foundation C Backfill concrete

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【手続補正書】[Procedure amendment]

【提出日】平成５年３月２５日[Submission date] March 25, 1993

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】図２[Name of item to be corrected] Figure 2

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図２】従来例を示す縦断面機構図である。FIG. 2 is a longitudinal sectional view showing a conventional example.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

【請求項１】土留め壁の内面側にＰＣａ板を間隔を置
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. PCa boards are arranged in parallel on the inner surface side of the earth retaining wall with a space therebetween, and the upper and lower parts of the PCa boards are fixedly attached to an underground foundation and an underground peripheral frame of a building structure, An underground outer wall using a PCa plate, which is constructed by placing backfilling concrete between the retaining wall and the PCa plate.