JP6886799B2 - Floor slab structure - Google Patents

Floor slab structure Download PDF

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JP6886799B2
JP6886799B2 JP2016210981A JP2016210981A JP6886799B2 JP 6886799 B2 JP6886799 B2 JP 6886799B2 JP 2016210981 A JP2016210981 A JP 2016210981A JP 2016210981 A JP2016210981 A JP 2016210981A JP 6886799 B2 JP6886799 B2 JP 6886799B2
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floor slab
corridor
living
living space
drainage
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JP2018071160A (en
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中川　英樹
英樹 中川
良 立本
良 立本
史郎 織井
史郎 織井
祐介 吉田
祐介 吉田
啓介 大知
啓介 大知
伸顕 佐藤
伸顕 佐藤
俊司 山本
俊司 山本
崇宏 待永
崇宏 待永
健二 植田
健二 植田
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Takenaka Corp
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Takenaka Corp
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Description

本発明は、建物の各居住空間の居住床スラブ上面が、各居住空間の奥側から共用廊下側に向けて排水勾配を有するように傾斜している床スラブ構造に関する。 The present invention relates to a floor slab structure in which the upper surface of a living floor slab in each living space of a building is inclined so as to have a drainage gradient from the back side of each living space toward the common corridor side.

マンションなどの集合住宅では、各居住空間の居住床スラブ上面が、居住空間の奥側から共用廊下側に向けて排水勾配を有するように傾斜され、排水経路となる排水管が、その居住床スラブ上に配置される場合がある。
その場合、共用廊下の廊下床スラブの上面は、居住床スラブの共用廊下側端部の上面と同じ高さで連続するように構築されるのが一般的で、居住床スラブ上に配置の排水管は、通常、廊下床スラブの上面に取り出される（例えば、特許文献１および２参照）。
また、特殊な例としては、廊下床スラブが、居住床スラブの共用廊下側端部より上方に位置するように段差部を設けて構築されたものもある（例えば、特許文献３参照）。 In condominiums and other condominiums, the upper surface of the living floor slab in each living space is inclined so as to have a drainage gradient from the back side of the living space toward the common corridor side, and the drainage pipe that serves as the drainage route is the living floor slab. May be placed on top.
In that case, the upper surface of the corridor floor slab of the common corridor is generally constructed so as to be continuous at the same height as the upper surface of the common corridor side end of the residential floor slab, and the drainage placed on the residential floor slab is constructed. The pipe is usually taken out on the upper surface of the corridor floor slab (see, for example, Patent Documents 1 and 2).
Further, as a special example, the corridor floor slab is constructed by providing a stepped portion so as to be located above the common corridor side end portion of the living floor slab (see, for example, Patent Document 3).

特開平８−１２８１４４号公報（特に段落［００１７］参照）Japanese Unexamined Patent Publication No. 8-128144 (see paragraph [0017] in particular) 特開２００３−１２９６０２号公報（特に図３参照）Japanese Unexamined Patent Publication No. 2003-129602 (see especially FIG. 3) 特開２００６−９２４９号公報Japanese Unexamined Patent Publication No. 2006-9249

ところで、マンションなどの集合住宅では、その施工時に、共用廊下の廊下床スラブが各種物品の搬入動線や作業用の通路として使用されるため、上記特許文献１および２に記載の従来構造では、廊下床スラブの上面に取り出された排水管が、物品搬入や通行の邪魔になり、作業効率の低下を招いたり、作業の安全性を阻害するおそれがある。また、場合によっては、排水管を不測に損傷する可能性もある。
ちなみに、上記特許文献３には、廊下床スラブが、居住床スラブの共用廊下側端部より上方に位置する記載はあるものの、排水管と廊下床スラブとの配置関係については何の記載もない。 By the way, in a condominium or the like, the corridor floor slab of the common corridor is used as a carry-in flow line for various articles and a passage for work at the time of construction. The drainage pipe taken out from the upper surface of the corridor floor slab may interfere with the loading and passage of goods, leading to a decrease in work efficiency and impairing work safety. In some cases, the drainage pipe may be damaged unexpectedly.
Incidentally, in Patent Document 3, although there is a description that the corridor floor slab is located above the common corridor side end of the living floor slab, there is no description about the arrangement relationship between the drain pipe and the corridor floor slab. ..

本発明は、このような従来の問題点に着目したもので、その目的は、建物の施工時、共用廊下の廊下床スラブを各種物品の搬入動線や作業用の通路として使用しても、居住床スラブからの排水経路が邪魔になることも、不測に損傷することもない床スラブ構造を提供することにある。 The present invention focuses on such conventional problems, and an object of the present invention is to use a corridor floor slab in a common corridor as a flow line for carrying in various articles and a passage for work during construction of a building. The purpose is to provide a floor slab structure in which the drainage route from the residential floor slab is not obstructed or accidentally damaged.

本発明の第１の特徴構成は、建物の居住空間と共用廊下とが水平方向に沿って隣接する状態で並び、前記居住空間に対して前記共用廊下が存在する側を共用廊下側とし、その反対側を奥側として、各居住空間の居住床スラブ上面が、各居住空間の前記奥側から前記共用廊下側に向けて排水勾配を有するように傾斜し、前記居住床スラブ上に前記居住床スラブの上面に沿って配設される排水経路を備えている床スラブ構造であって、前記共用廊下の廊下床スラブが、前記居住床スラブの共用廊下側端部より上方に位置するように段差部を設けて構築され、前記居住床スラブの上面に沿って配設される前記排水経路が、前記廊下床スラブの下方に取り出され、前記居住床スラブが、各居住空間の前記奥側に構築の奥側梁と各居住空間の前記共用廊下側に構築の廊下側梁とに亘って設けられ、前記廊下側梁が、前記奥側梁に比べて梁せいが小さく梁幅が大きく形成されることで、前記廊下側梁の上面が、前記奥側梁の上面よりも下方に位置するように構築され、前記排水経路が、前記廊下側梁の上面より上方において前記段差部を貫通し、前記段差部の上下高さが、前記排水経路の上下高さよりも高く設定され、当該排水経路が、前記居住床スラブ上面と前記廊下床スラブ下面の間を通って前記段差部を貫通する点にある。 The first characteristic configuration of the present invention is that the living space of the building and the common corridor are arranged in a state of being adjacent to each other in the horizontal direction, and the side where the common corridor exists with respect to the living space is the common corridor side. With the opposite side as the back side, the upper surface of the living floor slab of each living space is inclined so as to have a drainage gradient from the back side of each living space toward the common corridor side, and the living floor is placed on the living floor slab. A floor slab structure having a drainage path arranged along the upper surface of the slab, and a step so that the corridor floor slab of the common corridor is located above the common corridor side end of the living floor slab. The drainage path constructed by providing a portion and arranged along the upper surface of the living floor slab is taken out below the corridor floor slab, and the living floor slab is constructed on the back side of each living space. The back side beam and the corridor side beam constructed on the common corridor side of each living space are provided, and the corridor side beam is formed to have a smaller beam length and a larger beam width than the back side beam. it is, an upper surface of the corridor side beams than said upper surface of back side beam is constructed so as to be positioned downward, the drainage path, the stepped portion through the above the upper surface of the corridor side beam, the The vertical height of the step portion is set higher than the vertical height of the drainage path, and the drainage path passes between the upper surface of the living floor slab and the lower surface of the corridor floor slab and penetrates the step portion. ..

本構成によれば、共用廊下の廊下床スラブが、居住床スラブの共用廊下側端部より上方に位置するように段差部を設けて構築され、居住床スラブ上の排水経路が、廊下床スラブの下方に取り出されるので、建物の施工時、共用廊下の廊下床スラブを各種物品の搬入動線や作業用の通路として使用しても、居住床スラブからの排水経路が邪魔になることはなく、各種の物品搬入や作業を安全かつ効率良く行うことができ、また、排水経路を不測に損傷することもない。 According to this configuration, the corridor floor slab of the common corridor is constructed by providing a step portion so as to be located above the common corridor side end of the residential floor slab, and the drainage path on the residential floor slab is the corridor floor slab. Since it is taken out below the building, even if the corridor floor slab in the common corridor is used as a carry-in flow line for various goods or a passage for work, the drainage route from the residential floor slab does not get in the way. , Various goods can be carried in and work safely and efficiently, and the drainage route is not unexpectedly damaged.

加えて、居住床スラブが、各居住空間の奥側に構築の奥側梁と共用廊下側に構築の廊下側梁とに亘って設けられ、廊下側梁の上面が、奥側梁の上面よりも下方に位置するように構築されるので、居住床スラブからの排水経路は、廊下側梁の上面より上方において段差部を貫通することになる。
言い換えると、排水経路が廊下側梁を貫通することはなく、したがって、廊下側梁の強 度低下を招くことも、また、強度低下回避のための後処理も不要となる。 In addition, a living floor slab is provided over the back beam of the construction on the back side of each living space and the corridor side beam of the construction on the common corridor side, and the upper surface of the corridor side beam is from the upper surface of the back side beam. Since it is constructed so as to be located below, the drainage route from the living floor slab penetrates the step portion above the upper surface of the corridor side beam.
In other words, the drainage route does not penetrate the corridor-side beam, and therefore, the strength of the corridor-side beam is reduced, and no post-treatment for avoiding the strength reduction is required.

加えて、段差部の上下高さが、排水経路の上下高さよりも高く設定され、当該排水経路が、居住床スラブ上面と廊下床スラブ下面の間を通って段差部を貫通するので、排水経路の貫通処理が、廊下床スラブや廊下側梁などと無関係に段差部のみで合理的に処理可能となる。 In addition, the vertical height of the step portion is set higher than the vertical height of the drainage path, and the drainage route passes between the upper surface of the living floor slab and the lower surface of the corridor floor slab and penetrates the step portion. Penetration processing can be rationalized only at the stepped portion regardless of the corridor floor slab and the corridor side beam.

床スラブ構造を示す縦断側面図Longitudinal side view showing floor slab structure 床スラブ構造の要部を示す縦断側面図Longitudinal side view showing the main part of the floor slab structure

本発明による床スラブ構造の実施形態を図面に基づいて説明する。
本発明の床スラブ構造は、例えば、タワーマンションを一例とする各種の集合住宅などのように、複数の居住空間と共用廊下とを有する建物に適用される。
建物がタワーマンションの場合、例えば、図１に示すように、タワーマンションＴＭの中心部に平面視で矩形のエレベータやエレベータパーキング用などの吹抜け部ＥＨが配置され、吹抜け部ＥＨの周囲に共用廊下Ｃが配置されて、多数の住戸の居住空間Ｒが、その共用廊下Ｃから外側に向けて配置される。
各居住空間Ｒへは、玄関である出入口Ｄを介して共用廊下Ｃ側から出入可能で、居住空間Ｒの最奥部にはバルコニーＢが設けられ、このような多数の居住空間Ｒが、多層階に亘って配置されている。 An embodiment of the floor slab structure according to the present invention will be described with reference to the drawings.
The floor slab structure of the present invention is applied to a building having a plurality of living spaces and a common corridor, such as various apartments such as a tower condominium as an example.
When the building is a tower condominium, for example, as shown in FIG. 1, a rectangular elevator in a plan view or an atrium EH for elevator parking is arranged in the center of the tower apartment TM, and a common corridor is placed around the atrium EH. C is arranged, and the living spaces R of a large number of dwelling units are arranged from the common corridor C toward the outside.
Each living space R can be accessed from the common corridor C side via the entrance D, which is the entrance, and a balcony B is provided at the innermost part of the living space R. It is located across the floors.

各居住空間Ｒの居住床スラブ１は、図１に示すように、バルコニー（居住空間の奥）Ｂ側に構築の奥側梁２と共用廊下Ｃ側に構築の廊下側梁３とに亘って配設され、例えば、複数枚の長尺状のスパンクリートを図１の紙面に直交する方向に配置し、その上にコンクリートを打設した合成床板で構成される。
奥側梁２と廊下側梁３に関しては、廊下側梁３の上面が奥側梁２の上面よりも下方に位置するように構築され、それによって、居住床スラブ１の上面が、居住空間Ｒの奥であるバルコニーＢ側から共用廊下Ｃ側に向けて、排水勾配を有するように傾斜した構造に構築される。
共用廊下Ｃの廊下床スラブ５は、吹抜け部ＥＨ側に構築の吹抜け部側梁４と廊下側梁３とに亘って配設され、例えば、現場打ちコンクリートで構成される。 As shown in FIG. 1, the living floor slab 1 of each living space R extends over the back beam 2 constructed on the balcony (back of the living space) B side and the corridor side beam 3 constructed on the common corridor C side. It is composed of, for example, a composite floor board in which a plurality of long spun cleats are arranged in a direction orthogonal to the paper surface of FIG. 1 and concrete is cast on the plurality of long spun cleats.
Regarding the back side beam 2 and the corridor side beam 3, the upper surface of the corridor side beam 3 is constructed so as to be located below the upper surface of the back side beam 2, whereby the upper surface of the living floor slab 1 becomes the living space R. The structure is constructed so as to have a drainage gradient from the balcony B side, which is the back of the building, toward the common corridor C side.
The corridor floor slab 5 of the common corridor C is arranged over the atrium side beam 4 and the corridor side beam 3 constructed on the atrium EH side, and is composed of, for example, cast-in-place concrete.

廊下側梁３と吹抜け部側梁４に関しては、廊下側梁３の上面が吹抜け部側梁４の上面よりも下方に位置するように構築され、かつ、居住床スラブ１と廊下床スラブ５に関しては、廊下床スラブ５が居住床スラブ１の共用廊下Ｃ側の端部の上面よりも上方に位置するように、例えば、コンクリート製の段差部６を設けて、廊下床スラブ５の上面が水平になるように構築される。
各居住空間Ｒの居住床スラブ１の上面には、図２に示すように、当該居住空間Ｒからの排水経路である排水管７が配置されて共用廊下Ｃの廊下床スラブ５の下方に取り出され、当該居住空間Ｒへの給水経路である給水管８も、廊下床スラブ５の下方を通って居住床スラブ１の上面に配置される。 Regarding the corridor side beam 3 and the atrium side beam 4, the upper surface of the corridor side beam 3 is constructed so as to be located below the upper surface of the atrium side beam 4, and the living floor slab 1 and the corridor floor slab 5 are constructed. Is provided with, for example, a concrete step portion 6 so that the corridor floor slab 5 is located above the upper surface of the end portion of the living floor slab 1 on the common corridor C side, and the upper surface of the corridor floor slab 5 is horizontal. It is built to be.
As shown in FIG. 2, a drain pipe 7 which is a drainage route from the living space R is arranged on the upper surface of the living floor slab 1 of each living space R, and is taken out below the corridor floor slab 5 of the common corridor C. The water supply pipe 8 which is a water supply route to the living space R is also arranged on the upper surface of the living floor slab 1 by passing under the corridor floor slab 5.

居住床スラブ１と廊下床スラブ５の間の段差部６は、その上下高さが排水管７や給水管８の上下高さよりも高く設定されて、排水管７と給水管８が、居住床スラブ１の上面と廊下床スラブ５の下面との間を通って段差部６を貫通するように構築される。
廊下床スラブ５の下方には、上述した排水管７や給水管８に加えて、下層階のスプリンクラー用給水管９や各種の電線（図示せず）なども配置され、これら各種の配管や電線などの設備配管類１０が集約して配置される。
居住床スラブ１の上方には、排水管７や給水管８を覆うように、床材１２が水平に配設され、居住床スラブ１の下方には、スプリンクラー用給水管９や電線、廊下側梁３などを覆い隠すように、下層階の天井材１３が中間に段差を有する状態で水平に、つまり、バルコニーＢ側の天井が高く、出入口Ｄ側の天井が低くなるように配設される。
そして、廊下床スラブ５の下方には、設備配管類１０を覆う廊下天井材１４が、出入口Ｄ側の天井材１３と同じ高さに配設され、それによって、廊下床スラブ６の下方に設備配管類１０を集約して配設するための大きな空間が確保されるとともに、吹抜け部ＥＨの側壁側には、各階の設備配管類１０を集合した集合設備配管類１１を覆う状態で廊下壁材１５が配設される。 The vertical height of the step portion 6 between the living floor slab 1 and the corridor floor slab 5 is set higher than the vertical height of the drain pipe 7 and the water supply pipe 8, and the drain pipe 7 and the water supply pipe 8 are set to be higher than the vertical height of the drain pipe 7 and the water supply pipe 8. It is constructed so as to pass between the upper surface of the slab 1 and the lower surface of the corridor floor slab 5 and penetrate the step portion 6.
Below the corridor floor slab 5, in addition to the drainage pipe 7 and the water supply pipe 8 described above, a sprinkler water supply pipe 9 and various electric wires (not shown) on the lower floors are also arranged, and these various pipes and electric wires are arranged. Equipment piping 10 and the like are collectively arranged.
A floor material 12 is horizontally arranged above the living floor slab 1 so as to cover the drainage pipe 7 and the water supply pipe 8, and below the living floor slab 1, the sprinkler water supply pipe 9, the electric wire, and the corridor side. The ceiling material 13 on the lower floor is arranged horizontally with a step in the middle so as to cover the beams 3 and the like, that is, the ceiling on the balcony B side is high and the ceiling on the doorway D side is low. ..
Then, below the corridor floor slab 5, a corridor ceiling material 14 covering the equipment pipes 10 is arranged at the same height as the ceiling material 13 on the entrance / exit D side, whereby the equipment is installed below the corridor floor slab 6. A large space for collecting and arranging the pipes 10 is secured, and on the side wall side of the atrium EH, the corridor wall material is covered with the collective equipment pipes 11 in which the equipment pipes 10 of each floor are gathered. 15 is arranged.

〔別実施形態〕
（１）先の実施形態では、タワーマンションを建物ＴＭの一例として説明したが、タワーマンション以外にも、各種の集合住宅やホテルなどの建物ＴＭに適用可能である。
その場合、居住空間Ｒの最奥部にバルコニーＢを備えている必要も、共用廊下Ｃに隣接して吹抜け部ＥＨを備えている必要もなく、居住空間Ｒと共用廊下Ｃを備えた建物ＴＭであれば適用可能である。 [Another Embodiment]
(1) In the above embodiment, the tower condominium has been described as an example of the building TM, but it can be applied to various building TMs such as apartment houses and hotels in addition to the tower condominium.
In that case, it is not necessary to have a balcony B at the innermost part of the living space R, and it is not necessary to have an atrium EH adjacent to the common corridor C, and the building TM having the living space R and the common corridor C is provided. If so, it is applicable.

（２）先の実施形態では、居住空間Ｒの奥側梁２と廊下側梁３とに亘って居住床スラブ１を配設した例を示したが、この居住床スラブ１に関しては、必ずしも奥側梁２と廊下側梁３とに亘って配設した構造でなくてもよい。
仮に、奥側梁２と廊下側梁３とに亘って配設する場合、奥側梁２と廊下側梁３の上面を同じ高さにし、居住床スラブ１の厚みの変化によって居住床スラブ１の上面に排水勾配を設けることもできる。 (2) In the above embodiment, an example in which the living floor slab 1 is arranged over the back beam 2 and the corridor side beam 3 of the living space R is shown, but the living floor slab 1 is not necessarily in the back. It does not have to be a structure arranged over the side beam 2 and the corridor side beam 3.
If the back side beam 2 and the corridor side beam 3 are arranged, the upper surfaces of the back side beam 2 and the corridor side beam 3 are set to the same height, and the living floor slab 1 is changed by changing the thickness of the living floor slab 1. A drainage gradient can also be provided on the upper surface of the.

（３）先の実施形態では、居住床スラブ１をスパンクリートとコンクリートからなる合成床板で構成した例を示したが、スパンクリートのみで、または、現場打ちコンクリートによって居住床スラブ１を構成することもできる。廊下床スラブ５に関しても、先に示した現場打ちコンクリートに限らず、スパンクリートやスパンクリートを使用した合成床板で構成することもでき、両床スラブ１、５を繋ぐ段差部６についても同様で、特にコンクリート製に限るものではない。
その段差部６に関し、段差部６の上下高さを排水管７や給水管８の上下高さよりも高く設定した例を示したが、段差部６の高さを排水管７や給水管８の高さよりも低く設定することも可能である。その場合には、排水管７や給水管８は、居住床スラブ１、廊下床スラブ５、あるいは、廊下側梁３の一部と段差部６を貫通することになる。 (3) In the above embodiment, an example in which the living floor slab 1 is composed of a synthetic floor board made of spancrete and concrete is shown, but the living floor slab 1 can also be composed of only spancrete or cast-in-place concrete. .. The corridor floor slab 5 is not limited to the cast-in-place concrete shown above, but can also be composed of a synthetic floor board using a span cleat or a span cleat, and the same applies to the step portion 6 connecting the two floor slabs 1 and 5, in particular. It is not limited to concrete.
Regarding the step portion 6, an example in which the vertical height of the step portion 6 is set higher than the vertical height of the drain pipe 7 and the water supply pipe 8 is shown, but the height of the step portion 6 is set to be higher than that of the drain pipe 7 and the water supply pipe 8. It is also possible to set it lower than the height. In that case, the drainage pipe 7 and the water supply pipe 8 penetrate the living floor slab 1, the corridor floor slab 5, or a part of the corridor side beam 3 and the step portion 6.

（４）先の実施形態では、居住床スラブ１の上面が、居住空間Ｒの最奥部から共用廊下Ｃ側に向けて全面的に排水勾配を有するように傾斜した例を示したが、必ずしも居住空間Ｒの最奥部から傾斜した構成にする必要はない。例えば、居住空間Ｒのうち、共用廊下Ｃ側に台所、洗面所、浴室、トイレなどの水まわり設備が集約された間取りの場合、居住床スラブ１の上面のうち、これら水まわり設備の下方に位置する居住床スラブ１の部位のみに共用廊下Ｃ側へ向かう排水勾配を設けて実施することもできる。
したがって、本発明において「居住空間の奥」とは、居住空間Ｒの最奥部を意味するものではなく、共用廊下Ｃに隣接する出入口Ｄよりも居住空間Ｒの奥側という意味である。 (4) In the above embodiment, an example is shown in which the upper surface of the living floor slab 1 is inclined so as to have a drainage gradient from the innermost part of the living space R toward the common corridor C side. It is not necessary to incline from the innermost part of the living space R. For example, in the living space R, in the case of a floor plan in which water-related equipment such as a kitchen, a washroom, a bathroom, and a toilet are concentrated on the common corridor C side, the upper surface of the living floor slab 1 is below these water-related equipment. It is also possible to provide a drainage gradient toward the common corridor C side only in the portion of the living floor slab 1 where it is located.
Therefore, in the present invention, the "inner part of the living space" does not mean the innermost part of the living space R, but means the innermost part of the living space R than the entrance / exit D adjacent to the common corridor C.

１ 居住床スラブ
２ 奥側梁
３ 廊下側梁
５ 廊下床スラブ
６ 段差部
７ 排水経路
１０ 設備配管類
ＴＭ 建物
Ｒ 居住空間
Ｂ バルコニー（居住空間の奥）
Ｃ 共用廊下 1 Residential floor slab 2 Back side beam 3 Corridor side beam 5 Corridor floor slab 6 Stepped part 7 Drainage route 10 Equipment piping TM Building R Living space B Balcony (back of living space)
C common corridor

Claims (2)

建物の居住空間と共用廊下とが水平方向に沿って隣接する状態で並び、前記居住空間に対して前記共用廊下が存在する側を共用廊下側とし、その反対側を奥側として、
各居住空間の居住床スラブ上面が、各居住空間の前記奥側から前記共用廊下側に向けて排水勾配を有するように傾斜し、前記居住床スラブ上に前記居住床スラブの上面に沿って配設される排水経路を備えている床スラブ構造であって、
前記共用廊下の廊下床スラブが、前記居住床スラブの共用廊下側端部より上方に位置するように段差部を設けて構築され、前記居住床スラブの上面に沿って配設される前記排水経路が、前記廊下床スラブの下方に取り出され、
前記居住床スラブが、各居住空間の前記奥側に構築の奥側梁と各居住空間の前記共用廊下側に構築の廊下側梁とに亘って設けられ、前記廊下側梁が、前記奥側梁に比べて梁せいが小さく梁幅が大きく形成されることで、前記廊下側梁の上面が、前記奥側梁の上面よりも下方に位置するように構築され、前記排水経路が、前記廊下側梁の上面より上方において前記段差部を貫通し、
前記段差部の上下高さが、前記排水経路の上下高さよりも高く設定され、当該排水経路が、前記居住床スラブ上面と前記廊下床スラブ下面の間を通って前記段差部を貫通する床スラブ構造。 The living space of the building and the common corridor are lined up horizontally adjacent to each other, and the side where the common corridor exists with respect to the living space is the common corridor side, and the opposite side is the back side.
The upper surface of the living floor slab of each living space is inclined so as to have a drainage gradient from the back side of each living space toward the common corridor side, and is arranged on the living floor slab along the upper surface of the living floor slab. It is a floor slab structure with a drainage route to be installed.
The drainage route is constructed by providing a step portion so that the corridor floor slab of the common corridor is located above the common corridor side end of the living floor slab, and is arranged along the upper surface of the living floor slab. Is taken out below the corridor floor slab
The living floor slab is provided over the back side beam constructed on the back side of each living space and the corridor side beam constructed on the common corridor side of each living space, and the corridor side beam is provided on the back side. Since the beam length is smaller and the beam width is larger than that of the beam, the upper surface of the corridor side beam is constructed so as to be located below the upper surface of the back side beam, and the drainage path is formed in the corridor. Penetrating the step above the upper surface of the side beam ,
The vertical height of the step portion is set higher than the vertical height of the drainage path, and the drainage path passes between the upper surface of the living floor slab and the lower surface of the corridor floor slab and penetrates the step portion. Construction. 前記居住床スラブの上面は、前記居住空間と前記共用廊下とが並ぶ方向の全幅に亘って前記排水勾配を有するように傾斜している請求項１に記載の床スラブ構造。 The floor slab structure according to claim 1, wherein the upper surface of the living floor slab is inclined so as to have the drainage gradient over the entire width in the direction in which the living space and the common corridor are lined up.
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