JP4004967B2 - Barrier-free renovation structure of staircase type apartment houses - Google Patents

Barrier-free renovation structure of staircase type apartment houses Download PDF

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JP4004967B2
JP4004967B2 JP2003017541A JP2003017541A JP4004967B2 JP 4004967 B2 JP4004967 B2 JP 4004967B2 JP 2003017541 A JP2003017541 A JP 2003017541A JP 2003017541 A JP2003017541 A JP 2003017541A JP 4004967 B2 JP4004967 B2 JP 4004967B2
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staircase
existing
apartment house
type apartment
corridor
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JP2004225473A (en
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英一郎 佐伯
厚 渡辺
仁 吉村
俊二 佐藤
明 小林
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Nippon Steel Engineering Co Ltd
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Nippon Steel Engineering Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0266—Enlarging

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Steps, Ramps, And Handrails (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、既存の階段室型集合住宅に対して外部水平廊下、外部エレベータを設置する階段室型集合住宅のバリアフリー化改修構造に関する。
【０００２】
【従来の技術】
５階建て以下の古い階段室型共同住宅などのようにエレベータのない既存の建物では、２階以上に居住する高齢者や身体的障害のある人達は、外出するにも階段の昇降が大変である。現在、エレベータのない階段室型集合住宅は夥しい数にのぼり、高齢化時代を迎えて前述のような問題は大きな社会問題になってきている。そこで、最近では、既存の階段室型集合住宅にエレベータを設置するバリアフリー化改修構造が提案されている。
【０００３】
【特許文献１】
特開２００１−２９５４７９号公報
【特許文献２】
特開２００２−８９０５６号公報
【０００４】
【発明が解決しようとする課題】
従来の既存の階段室型集合住宅のバリアフリー化改修構造では、既存の階段側に新設する外部水平廊下を支持するための基礎を構築する必要があり、基礎構築のための基礎穴の掘削は地下埋設配管等の地下埋設物に配慮が必要であり、基礎コンクリートの打設・養生等により工期の長期化という問題が発生する。また、居住状態のままの施工の場合、既存階段の撤去に伴う振動・騒音の発生や、既存階段の撤去工事に伴う住戸へのアプローチの確保が必要であるという問題も発生する。さらに、既存階段の撤去に伴うコンクリート廃材の増加という問題も発生する。
【０００５】
本発明は、上記従来技術の持つ課題を解決する階段室型集合住宅のバリアフリー化改修構造を提供することを目的とする。
【０００６】
【課題を解決するための手段】
本第１発明は、上記課題を解決するために、既存の階段室型集合住宅の階段室側に吊り構造の水平外部廊下が設置され、前記水平外部廊下と各階玄関との間に水平廊下が設置され、各水平外部廊下と連絡するように外部エレベータが設置され、前記吊り構造の水平外部廊下は、前記階段室型集合住宅の屋上に一端が固定され、他端が前記階段室側に突出されてなる吊りビームと、前記吊りビームの他端に連結され、前記階段室型集合住宅の壁部に一端が固定された床支持材を吊り支持する張弦材と、前記床支持材上に設置された床材とによって構成されていることを特徴とする。
【０００７】
本第２発明は、本第１発明の階段室型集合住宅のバリアフリー化改修構造において、前記階段室の既存階段が撤去され、前記既存階段のあった階段室に各階を結ぶ新設階段が設置されることを特徴とする。
【０００８】
本第３発明は、本第２発明の階段室型集合住宅のバリアフリー化改修構造において、前記新設階段は、直線状の階段であることを特徴とする。
【０００９】
本第４発明は、本第３発明の階段室型集合住宅のバリアフリー化改修構造において、前記新設階段は、一端側が前記水平外部廊下と連結されていることを特徴とする。
【００１０】
本第５発明は、既存の階段室型集合住宅の階段室側に吊り構造の水平外部廊下が設置され、前記階段室型集合住宅の既存階段が撤去され、前記水平外部廊下と各階玄関との間に水平廊下が設置され、各水平外部廊下と連絡するように外部エレベータが設置され、前記既存の階段室型集合住宅の既存階段の工事中にバルコニー側に新規外部階段ユニットが仮設置され、前記水平廊下の設置工事終了後に前記新規外部階段ユニットが既存階段のあった位置または水平外部廊下に設置されていることを特徴とする。
【００１１】
本第６発明は、本第１〜第５発明の階段室型集合住宅のバリアフリー化改修構造において、前記既存階段の撤去作業にワイヤーソーまたは電動ウォールソーを用いることを特徴とする。
【００１２】
本第７発明は、本第６発明の階段室型集合住宅のバリアフリー化改修構造において、前記切断撤去した既存階段を裏返しにしてコンクリートスロープとして利用することを特徴とする。
【００１３】
本第８発明は、本第７発明の階段室型集合住宅のバリアフリー化改修構造において、前記吊りビーム上に屋根を設置することを特徴とする。
【００１５】
【作用】
本発明の構成により、水平外部廊下を吊り構造とすることにより、水平外部廊下を支持する基礎を構築する必要がないため、基礎構築に伴う地下埋設配管等との干渉が発生せず、基礎構築に伴う改修工事の長期化という問題も発生しない。既存の折り返し階段の一部のみを撤去し、既存の残った階段に新設の階段を連結して直線状の階段にすることにより、既存階段を有効に利用でき、コンクリート廃材の量も減少する。
既存の折り返し階段を全て撤去することにより階段室が空所となり、この空所に外部階段ユニットや新設直線状階段を設置することが可能となる。
既存階段の撤去作業にワイヤーソーまたは電動ウォールソーを用いることにより、振動・騒音の発生が抑制され、また、切断面がきれいであるため、切断後の既設階段を裏返しととしてスロープとして利用可能となる。
前記既存の階段室型集合住宅にの既存階段の工事中に、バルコニー側に新規外部階段ユニットを仮設置し、工事終了時に新規外部階段ユニットを既存階段のあった階段室または外部水平廊下に設置することにより、既存階段の撤去工事中も居住が可能であり、工事終了後には恒久階段として利用可能となる。
アーチ形吊りビームの一端を耐震壁上の屋上にケミカルアンカーにより固定することにより、大きな引抜抵抗力を得ることができる。
吊りビーム上に屋根を設けることにより、曲線状の屋根となり美観的にも優れた建造物として改修され、屋上部分にも屋根が設置されるため、屋上コンクリートの蓄熱・放熱が抑制され、最上階居住部内の空調が改善される。
吊り構造の水平外部廊下の床支持材を既存の階段室型集合住宅の壁に固定することにより、吊り構造の水平外部廊下の振れ止めが可能となる。
【００１６】
【本発明の実施形態】
本発明の実施形態を図により説明する。
図１は本発明の一実施形態の概略図である。既存の階段室形集合住宅１に、吊り構造の水平外部廊下２、外部エレベータ３を設置しバリアフリー化改修構造としたものである。既存の階段室型集合住宅１の耐震壁上の屋上４に吊りビーム５の一端がケミカルアンカーにより固定される。吊りビーム５は、屋上４に設置されたコンクリート又はＰＣ架台６に載置され、その他端は片持ち梁状に既存の階段室型集合住宅１の階段室７側に突出する。吊りビーム５の一端には、吊り荷重とバランスするためのカウンターウェートコンクリートを設置してもよい。吊りビーム５上には必要に応じて屋根ユニット８を設置する。
【００１７】
図２に示されるように、吊りビーム５の他端には、ターンバックル９等の長さ調整手段を有する吊り鋼棒１０の一端が連結される。吊り鋼棒１０には、水平外部廊下２の床材１１を支持する床支持材１２が連結される。床支持材１２の一端は、階段室型集合住宅１の壁部１３に連結され、吊り構造の水平外部廊下２の振れ止めとする。床支持材１２間の鋼棒１０の外周には必要に応じて耐火性カバー１４を設置する。水平外部廊下２の両側には手すりユニット１５を設置する。
【００１８】
図７に示されるように、階段室型集合住宅１の階段室７には、各階を結ぶ折り返し階段１６が設置されている。そのため、水平外部廊下２と各階の居住空間の玄関とを結ぶ水平廊下２１を設置するためには、折り返し階段１６の下部分１７を撤去して、折り返し階段１６の上部分１８の下部に新設階段を連結して直線化した改良階段２０とするか、折り返し階段１６を全て撤去し、階段室７に新設階段を設置するか、水平外部廊下２と連絡する外部階段ユニット１９を設置する必要がある。既存階段の撤去は、ワイヤーソーまたは電動ウォールソーを用いて切断撤去する。これらの切断工具を用いると、切断の際水を用いるので騒音、振動及び粉塵の発生が抑制され、居住者に大きな不快感を与えない。既存階段の撤去工事の際、居住者の居住空間へのアクセスのため、バルコニー側に図４に示される外部階段ユニット１９を仮設置する。図４に示される外部階段ユニット１９は、搬送を容易とするため、上部階段ユニット２３、下部階段ユニット２４に分割している。
外部階段ユニット１９は、既存階段撤去作業、水平外部廊下２の設置作業が終了した後、既存階段のあった階段室７または外部水平廊下２に設置する。
【００１９】
切断された既存階段は、ワイヤーソーまたは電動ウォールソーにより切断されるため、その切り口は滑らかなので、裏返してアクセススロープ２２として利用可能である。
【００２０】
本発明の階段室型集合住宅のバリアフリー化改修構造の一実施形態の施工手順を説明する。
（１）階段室型集合住宅１のバルコニー側に居住者のアクセスのための外部階段ユニット１９を仮設置する。
（２）階段室７の折り返し階段１６を、最上階部分から下の階に向かって順にワイヤーソーまたは電動ウォールソーにより切断し、切断した階段部分をクレーンにより吊り上げ撤去する。
（３）耐力壁上の屋上４にＰＣ架台６を設置し、その上に吊りビーム５を載置し、吊りビーム５の一端をケミカルアンカー等により固定する。必要に応じて吊り荷重をバランスさせるためのカウンターウェートコンクリートを吊りビーム５の一端に連結する。
（４）吊りビーム５の他端に水平外部廊下２を吊り下げ支持する吊り鋼棒９の一端を連結し、吊り鋼棒９に床材１０を支持しる床支持材１１をターンバックル８により高さを調節して設置し、床支持材１１の一端を壁部１２に固定し、必要に応じて吊り鋼棒９の外周に耐火性カバー１３を設置する。
（５）床支持材１１上に床材１０を設置し、床材１０の両側に手すりユニット１５を設置して水平外部廊下２を形成する。
（６）水平外部廊下２と各階の居住空間との玄関とを連絡する水平廊下２１を設置する。
（７）外部エレベータ３とバルコニ側に仮設置された外部階段ユニット１９とを、水平外部廊下２と連絡するように設置する。
【００２１】
図５に示されるものは、階段室７の折り返し階段１６の下部分１７を撤去し、その下部に新設階段を連結し、階段を直線化した改良階段２０とし、水平外部廊下２と玄関とを水平廊下２１で連絡し、水平外部廊下２の外側に外部エレベータ３を設置した実施形態を示すものである。図３に示される外部エレベータ３は、搬送を容易にするため、上部ユニットと下部ユニットに分割して形成してもよい。
【００２２】
図６に示されるものは、階段室７の折り返し階段１６を全て撤去し、水平外部廊下２と玄関とを階段室７の全断面と同じ水平廊下２１で連絡し、外部エレベータ３、外部階段ユニット１９を水平外部廊下２の端部に設置した実施形態を示すものである。
【００２３】
上記一施工実施形態では、既存の階段室型集合住宅に居住状態（居つき状態）での施工手順を示したが、居抜き状態での施工も可能である。
【００２４】
【発明の効果】
本発明の構成により、水平外部廊下が吊り構造とすることにより、水平外部廊下を支持する基礎を構築する必要がないため、基礎構築に伴う地下埋設配管等との干渉が発生せず、基礎構築に伴う改修工事の長期化という問題も発生しない。既存の折り返し階段の一部のみを撤去し、既存の残った階段に新設の階段を連結して直線状の階段にすることにより、既存階段を有効に利用でき、コンクリート廃材の量も減少する。
既存の折り返し階段を全て撤去することにより階段室が空所となり、この空所に外部階段ユニットや新設直線状階段を設置することが可能となる。
既存階段の撤去作業にワイヤーソーまたは電動ウォールソーを用いることにより、振動・騒音の発生が抑制され、また、切断面がきれいであるため、切断後の既設階段を裏返しととしてスロープとして利用可能となる。
前記既存の階段室型集合住宅の既存階段の工事中に、バルコニー側に新規外部階段ユニットを仮設置し、工事終了持に新規外部階段ユニットを既存階段のあった位置または外部水平廊下に設置することにより、既存階段の撤去工事中も居住が可能であり、工事終了後には恒久階段として利用可能となる。
吊りビームの一端を耐震壁上の屋上にケミカルアンカーにより固定することにより、浅いアンカー孔でも大きな引抜き抵抗力を得ることができ、さらに、アンカー孔が浅くてすむことにより、アンカー孔が屋上の防水層を貫通することがなく、屋上からの漏水のリスクを防止できる。
吊りビーム上にアーチ形に屋根を設けることにより、曲線状の屋根となり美観的にも優れた建造物として改修され、屋上部分にも屋根が設置されるため、屋上コンクリートの蓄熱・放熱が抑制され、最上階居住部内の空調が改善される。
吊り構造の水平外部廊下の床支持材を既存の階段室型集合住宅の壁に固定することにより、吊り構造の水平外部廊下の振れ止めが可能となる。
【図面の簡単な説明】
【図１】 本発明の一実施形態を示す概略図
【図２】 本発明の一実施形態を示す概略図
【図３】 本発明の一実施形態を示す平面図
【図４】 本発明の一実施形態を示す平面図
【図５】 本発明の一実施形態を示す概略図
【図６】 本発明の一実施形態を示す概略図
【図７】 本発明の一実施形態を示す概略図
【符号の説明】
１：階段室型集合住宅
２：水平外部廊下
３：外部エレベータ
４：屋上
５：吊りビーム
６：コンクリート又はＰＣ架台
７：階段室
８：屋根ユニット
９：ターンバックル
１０：吊り鋼棒
１１：床材
１２：床支持材
１３：壁部
１４：耐火性カバー
１５：手すりユニット
１６：折り返し階段
１７：下部分
１８：上部分
１９：外部階段ユニット
２０：改良階段
２１：水平廊下
２２：アクセススロープ
２３：上部階段ユニット
２４：下部階段ユニット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a barrier-free renovation structure of a staircase type apartment house in which an external horizontal corridor and an external elevator are installed with respect to an existing staircase type apartment house.
[0002]
[Prior art]
In an existing building without an elevator, such as an old staircase type apartment house of 5 stories or less, elderly people living on the 2nd floor or more and people with physical disabilities are going up and down the stairs even when going out. is there. At present, there are a large number of staircase-type apartments without elevators, and the above-mentioned problems have become major social problems in the aging age. Therefore, recently, a barrier-free renovation structure in which an elevator is installed in an existing staircase type apartment house has been proposed.
[0003]
[Patent Document 1]
JP 2001-295479 A [Patent Document 2]
JP 2002-89056 A [0004]
[Problems to be solved by the invention]
In the existing renovated structure of the existing staircase-type apartment house, it is necessary to construct a foundation to support the external horizontal corridor newly installed on the existing staircase side. Consideration must be given to underground objects such as underground pipes, and there is a problem that the construction period will be prolonged due to the placement and curing of foundation concrete. In addition, in the case of construction in a residential state, problems such as generation of vibration and noise associated with the removal of the existing stairs and the need to secure an approach to the dwelling unit associated with the removal of the existing stairs arise. In addition, the problem of increased concrete waste due to the removal of existing stairs arises.
[0005]
An object of this invention is to provide the barrier-free repair structure of the staircase type | mold apartment house which solves the subject which the said prior art has.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the first aspect of the present invention is that a horizontal external corridor having a suspended structure is installed on the staircase side of an existing staircase type apartment house, and a horizontal corridor is provided between the horizontal external corridor and each floor entrance. An external elevator is installed so as to communicate with each horizontal external corridor. One end of the horizontal external corridor with the suspension structure is fixed on the roof of the staircase type apartment house, and the other end protrudes toward the staircase side. A suspended beam, a string member that is connected to the other end of the suspended beam and that supports a floor support member having one end fixed to the wall of the staircase type apartment house, and is installed on the floor support member. It is characterized by comprising a floor material .
[0007]
The second aspect of the present invention is the barrier-free retrofit structure of the staircase type apartment house according to the first aspect of the present invention, in which the existing staircase is removed and a new staircase connecting the floors is installed in the staircase where the existing staircase is located. It is characterized by being .
[0008]
According to a third aspect of the present invention, in the barrier-free renovation structure for a staircase type apartment house according to the second aspect of the invention, the new staircase is a straight staircase .
[0009]
According to a fourth aspect of the present invention, in the barrier-free renovation structure for a staircase type apartment house according to the third aspect of the present invention, one end of the new staircase is connected to the horizontal external corridor .
[0010]
In the fifth aspect of the present invention, a horizontal external hallway having a suspended structure is installed on the staircase side of an existing staircase type apartment house, the existing staircase of the staircase type apartment house is removed, and the horizontal external hallway and each floor entrance A horizontal corridor is installed between them, an external elevator is installed to communicate with each horizontal external corridor, and a new external stair unit is temporarily installed on the balcony side during the construction of the existing staircase of the existing staircase type apartment house, The new external stair unit is installed at a position where an existing staircase is located or at a horizontal external corridor after the installation work of the horizontal corridor is completed .
[0011]
According to a sixth aspect of the present invention, in the barrier-free retrofit structure of the staircase type apartment house according to the first to fifth aspects of the present invention, a wire saw or an electric wall saw is used for removing the existing staircase .
[0012]
The seventh invention, in the barrier-free repair structure of the sixth shot bright stairway type apartment, characterized by use as a concrete slope Turn the existing stairs and the cutting removal.
[0013]
The eighth invention, in the barrier-free repair structure of the seventh shot bright stairway type apartment, characterized by installing a roof on the hanger beam.
[0015]
[Action]
With the configuration of the present invention, since the horizontal external corridor has a suspended structure, it is not necessary to construct a foundation that supports the horizontal external corridor, so there is no interference with underground underground piping associated with the foundation construction, and the foundation construction There will be no problem of prolonged renovation work. By removing only a part of the existing folded staircase and connecting the new staircase to the existing remaining staircase to form a straight staircase, the existing staircase can be used effectively and the amount of waste concrete is also reduced.
By removing all the existing folding stairs, the stairs room becomes a vacant space, and an external stairs unit and a new straight stairs can be installed in this vacant space.
By using a wire saw or electric wall saw for the removal work of the existing stairs, the occurrence of vibration and noise is suppressed, and since the cut surface is clean, the existing stairs after cutting can be used as a reverse slope Become.
During the construction of the existing staircase in the existing staircase-type apartment building, a new external staircase unit was temporarily installed on the balcony side, and the new external staircase unit was installed in the staircase or the external horizontal corridor where the existing staircase was located at the end of the construction. By doing so, it is possible to live during the removal work of the existing staircase, and it can be used as a permanent staircase after the work is completed.
A large pulling resistance can be obtained by fixing one end of the arch-shaped hanging beam to the rooftop of the earthquake-resistant wall with a chemical anchor.
By installing a roof on the suspension beam, it becomes a curved roof and is improved as an aesthetically pleasing structure, and a roof is also installed on the roof, so the heat storage and heat dissipation of the rooftop concrete is suppressed, and the top floor Air conditioning in living areas is improved.
By fixing the floor support material of the horizontal external hallway of the suspended structure to the wall of the existing staircase type apartment house, the horizontal external hallway of the suspended structure can be steady.
[0016]
[Embodiment of the present invention]
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram of one embodiment of the present invention. The existing staircase-type apartment house 1 is provided with a horizontal external corridor 2 and an external elevator 3 having a suspended structure, and a barrier-free renovation structure is provided. One end of the suspension beam 5 is fixed to the roof 4 on the earthquake resistant wall of the existing staircase type apartment house 1 by a chemical anchor. The suspended beam 5 is placed on a concrete or PC frame 6 installed on the rooftop 4, and the other end projects in a cantilevered manner toward the staircase 7 side of the existing staircase-type apartment house 1. One end of the suspension beam 5 may be provided with counterweight concrete for balancing with the suspension load. A roof unit 8 is installed on the suspension beam 5 as necessary.
[0017]
As shown in FIG. 2, one end of a suspended steel rod 10 having length adjusting means such as a turnbuckle 9 is connected to the other end of the suspended beam 5. A floor support material 12 that supports the floor material 11 of the horizontal external corridor 2 is connected to the suspended steel bar 10. One end of the floor support 12 is connected to the wall 13 of the staircase-type apartment house 1 and serves as a steady rest for the horizontal external corridor 2 having a suspended structure. A fireproof cover 14 is installed on the outer periphery of the steel bar 10 between the floor supports 12 as necessary. Handrail units 15 are installed on both sides of the horizontal external corridor 2.
[0018]
As shown in FIG. 7, folded staircases 16 connecting the floors are installed in the staircase 7 of the staircase-type apartment house 1. Therefore, in order to install the horizontal corridor 21 that connects the horizontal external corridor 2 and the entrance of the living space on each floor, the lower portion 17 of the folding staircase 16 is removed, and a new staircase is formed below the upper portion 18 of the folding staircase 16. It is necessary to make the improved staircase 20 straight by connecting them, to remove all the folded staircases 16 and to install a new staircase in the staircase room 7 or to install an external staircase unit 19 that communicates with the horizontal external corridor 2 . The existing staircase is removed using a wire saw or an electric wall saw. When these cutting tools are used, since water is used at the time of cutting, generation of noise, vibration and dust is suppressed, and the resident is not greatly discomforted. When the existing staircase is removed, an external staircase unit 19 shown in FIG. 4 is temporarily installed on the balcony side in order to access the resident's living space. The external stair unit 19 shown in FIG. 4 is divided into an upper stair unit 23 and a lower stair unit 24 for easy transport.
The external stair unit 19 is installed in the staircase 7 or the external horizontal corridor 2 where the existing staircase is located after the existing stair removal work and the installation work of the horizontal external corridor 2 are completed.
[0019]
Since the cut existing staircase is cut by a wire saw or an electric wall saw, the cut end is smooth, so that it can be turned over and used as the access slope 22.
[0020]
The construction procedure of an embodiment of the barrier-free repair structure of the staircase type apartment house of the present invention will be described.
(1) Temporary installation of an external stair unit 19 for resident access on the balcony side of the staircase type apartment house 1.
(2) The folded staircase 16 of the staircase 7 is cut in order from the uppermost floor portion to the lower floor with a wire saw or an electric wall saw, and the cut staircase portion is lifted and removed by a crane.
(3) The PC frame 6 is installed on the roof 4 on the bearing wall, the suspension beam 5 is placed thereon, and one end of the suspension beam 5 is fixed with a chemical anchor or the like. Counterweight concrete for balancing the suspension load is connected to one end of the suspension beam 5 as necessary.
(4) The other end of the suspension beam 5 is connected to one end of a suspension steel rod 9 that supports the horizontal external corridor 2 in a suspended manner, and the floor support member 11 that supports the floor material 10 is attached to the suspension steel rod 9 by the turnbuckle 8. The height is adjusted and installed, one end of the floor support 11 is fixed to the wall 12, and a fireproof cover 13 is installed on the outer periphery of the suspended steel bar 9 as necessary.
(5) The floor material 10 is installed on the floor support material 11, and the handrail unit 15 is installed on both sides of the floor material 10 to form the horizontal external hallway 2.
(6) A horizontal corridor 21 that connects the horizontal external corridor 2 to the entrance of the living space on each floor is installed.
(7) The external elevator 3 and the external stair unit 19 temporarily installed on the balcony side are installed so as to communicate with the horizontal external corridor 2.
[0021]
In FIG. 5, the lower portion 17 of the folding staircase 16 of the staircase 7 is removed, and a new staircase is connected to the lower portion of the staircase 7 to form an improved staircase 20, and the horizontal external hallway 2 and the entrance are connected. An embodiment is shown in which the external elevator 3 is installed outside the horizontal external corridor 2 and communicated through the horizontal corridor 21. The external elevator 3 shown in FIG. 3 may be divided into an upper unit and a lower unit to facilitate transportation.
[0022]
FIG. 6 shows that all the folded stairs 16 of the staircase 7 are removed, the horizontal external corridor 2 and the entrance are connected by the horizontal corridor 21 that is the same as the entire cross section of the staircase 7, and the external elevator 3 and the external staircase unit are connected. An embodiment in which 19 is installed at the end of the horizontal external corridor 2 is shown.
[0023]
In the construction embodiment described above, the construction procedure in the living state (living state) is shown in the existing staircase type apartment house, but construction in the vacant state is also possible.
[0024]
【The invention's effect】
With the configuration of the present invention, since the horizontal external corridor has a suspended structure, there is no need to construct a foundation that supports the horizontal external corridor, so there is no interference with underground underground piping associated with the foundation construction. There will be no problem of prolonged renovation work. By removing only a part of the existing folded staircase and connecting the new staircase to the existing remaining staircase to form a straight staircase, the existing staircase can be used effectively and the amount of waste concrete is also reduced.
By removing all the existing folding stairs, the stairs room becomes a vacant space, and an external stairs unit and a new straight stairs can be installed in this vacant space.
By using a wire saw or electric wall saw for the removal of the existing staircase, the generation of vibration and noise is suppressed, and the cut surface is clean, so the existing staircase after cutting can be used as a reverse as a slope. Become.
During the construction of the existing staircase in the existing staircase type apartment house, a new external staircase unit is temporarily installed on the balcony side, and the new external staircase unit is installed at the position where the existing staircase was located or at the external horizontal corridor when the construction is completed Therefore, it is possible to live during the removal work of the existing staircase, and it can be used as a permanent staircase after the work is completed.
By fixing one end of the suspension beam to the rooftop of the earthquake-resistant wall with a chemical anchor, a large pulling resistance can be obtained even with a shallow anchorhole. In addition, the anchorhole is waterproof and can be waterproofed. The risk of water leakage from the rooftop can be prevented without penetrating the layers.
By installing an arched roof on the hanging beam, it becomes a curved roof and is improved as an aesthetically pleasing structure, and the roof is also installed on the roof, so the heat storage and heat dissipation of the rooftop concrete is suppressed. The air conditioning in the top floor residence is improved.
By fixing the floor support material of the horizontal external hallway of the suspended structure to the wall of the existing staircase type apartment house, the horizontal external hallway of the suspended structure can be steady.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of the present invention. FIG. 2 is a schematic view showing an embodiment of the present invention. FIG. 3 is a plan view showing an embodiment of the present invention. FIG. 5 is a schematic diagram showing one embodiment of the present invention. FIG. 6 is a schematic diagram showing one embodiment of the present invention. FIG. 7 is a schematic diagram showing one embodiment of the present invention. Explanation of]
1: Staircase type apartment house 2: Horizontal exterior corridor 3: External elevator 4: Rooftop 5: Hanging beam 6: Concrete or PC frame 7: Staircase 8: Roof unit 9: Turnbuckle 10: Hanging steel bar 11: Floor material 12: Floor support material 13: Wall part 14: Fireproof cover 15: Handrail unit 16: Folding stairs 17: Lower part 18: Upper part 19: External stair unit 20: Improved stairs 21: Horizontal corridor 22: Access slope 23: Upper part Stair unit 24: Lower stair unit

Claims (8)

既存の階段室型集合住宅の階段室側に吊り構造の水平外部廊下が設置され、前記水平外部廊下と各階玄関との間に水平廊下が設置され、各水平外部廊下と連絡するように外部エレベータが設置され、
前記吊り構造の水平外部廊下は、前記階段室型集合住宅の屋上に一端が固定され、他端が前記階段室側に突出されてなる吊りビームと、前記吊りビームの他端に連結され、前記階段室型集合住宅の壁部に一端が固定された床支持材を吊り支持する張弦材と、前記床支持材上に設置された床材とによって構成されていることを特徴とする階段室型集合住宅のバリアフリー化改修構造。A horizontal external corridor with a suspended structure is installed on the staircase side of the existing staircase-type apartment building, and a horizontal corridor is installed between the horizontal external corridor and each floor entrance, and an external elevator is connected to each horizontal external corridor. Is installed ,
The horizontal external corridor of the suspension structure has one end fixed on the roof of the staircase type apartment house and the other end connected to the other end of the suspension beam, the suspension beam protruding to the staircase side, A staircase type assembly comprising: a string material that suspends and supports a floor support member, one end of which is fixed to a wall portion of the staircase type apartment house, and a floor material installed on the floor support member. Renovation structure to make the house barrier free. 前記階段室の既存階段が撤去され、前記既存階段のあった階段室に各階を結ぶ新設階段が設置されることを特徴とする請求項１記載の階段室型集合住宅のバリアフリー化改修構造。The existing staircase in the staircase is removed, and a new staircase that connects each floor is installed in the staircase in which the existing staircase is located. 前記新設階段は、直線状の階段であることを特徴とする請求項２記載の階段室型集合住宅のバリアフリー化改修構造。 3. The barrier-free renovation structure for a staircase type apartment house according to claim 2 , wherein the new staircase is a straight staircase. 前記新設階段は、一端側が前記水平外部廊下と連結されていることを特徴とする請求項３記載の階段室型集合住宅のバリアフリー化改修構造。4. The barrier-free renovation structure for a staircase-type apartment house according to claim 3, wherein one end of the new staircase is connected to the horizontal external corridor. 既存の階段室型集合住宅の階段室側に吊り構造の水平外部廊下が設置され、前記階段室型集合住宅の既存階段が撤去され、前記水平外部廊下と各階玄関との間に水平廊下が設置され、各水平外部廊下と連絡するように外部エレベータが設置され、前記既存の階段室型集合住宅の既存階段の工事中にバルコニー側に新規外部階段ユニットが仮設置され、前記水平廊下の設置工事終了後に前記新規外部階段ユニットが既存階段のあった位置または水平外部廊下に設置されていることを特徴とする階段室型集合住宅のバリアフリー化改修構造。A horizontal external corridor with a suspended structure is installed on the staircase side of the existing staircase type apartment house, the existing staircase of the staircase type apartment house is removed, and a horizontal corridor is installed between the horizontal external hallway and each floor entrance An external elevator is installed to communicate with each horizontal external corridor, and a new external staircase unit is temporarily installed on the balcony side during the construction of the existing staircase of the existing staircase type apartment house. A barrier-free renovation structure for a staircase type apartment house, wherein the new external staircase unit is installed at a position where an existing staircase is located or a horizontal external corridor after completion. 前記既存階段の撤去作業にワイヤーソーまたは電動ウォールソーを用いることを特徴とする請求項１〜５のいずれか１項に記載の階段室型集合住宅のバリアフリー化改修構造。6. The barrier-free renovation structure for a staircase type apartment house according to any one of claims 1 to 5 , wherein a wire saw or an electric wall saw is used for removing the existing staircase. 前記切断撤去した既存階段を裏返しにしてコンクリートスロープとして利用することを特徴とする請求項６に記載の階段室型集合住宅のバリアフリー化改修構造。7. The barrier-free renovation structure for a staircase type apartment house according to claim 6 , wherein the existing staircase cut and removed is turned upside down and used as a concrete slope. 前記吊りビーム上に屋根を設置することを特徴とする請求項１〜７のいずれか１項に記載の階段室型集合住宅のバリアフリー化改修構造。8. A barrier-free renovation structure for a staircase type apartment house according to any one of claims 1 to 7, wherein a roof is installed on the suspension beam.
JP2003017541A 2003-01-27 2003-01-27 Barrier-free renovation structure of staircase type apartment houses Expired - Fee Related JP4004967B2 (en)

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