JP7095833B2 - Outer staircase structure and unit building - Google Patents

Outer staircase structure and unit building Download PDF

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JP7095833B2
JP7095833B2 JP2017204656A JP2017204656A JP7095833B2 JP 7095833 B2 JP7095833 B2 JP 7095833B2 JP 2017204656 A JP2017204656 A JP 2017204656A JP 2017204656 A JP2017204656 A JP 2017204656A JP 7095833 B2 JP7095833 B2 JP 7095833B2
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corridor
building
frame
receiving member
staircase structure
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JP2019078034A (en
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翔太 金子
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Toyota Housing Corp
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Description

本発明は、外階段構造及びユニット建物に関する。 The present invention relates to an outer staircase structure and a unit building.

下記特許文献１には、２階から屋上へ上る外階段の連結構造に関する技術が開示されている。この先行技術では、外階段は、建物本体の外壁面から突出して設けられた上部床ユニットと、この上部床ユニットに上端が接合された外階段ユニットと、この外階段ユニットの下端部に接合された下部床ユニットと、で構成されている。 The following Patent Document 1 discloses a technique relating to a connecting structure of an outer staircase that goes up from the second floor to the rooftop. In this prior art, the outer staircase is joined to the upper floor unit provided so as to project from the outer wall surface of the building body, the outer staircase unit to which the upper end is joined to the upper floor unit, and the lower end portion of the outer staircase unit. It consists of a lower floor unit and a lower floor unit.

そして、上部床ユニットは、４本の鋼材から平面矩形状に形成されたフレームと、このフレームの上面に設けられた床パネルと、を含んで構成され、床パネルの床面は、歩行屋根ユニットの屋根面と同じ高さレベルに形成されている。 The upper floor unit is configured to include a frame formed of four steel materials in a plane rectangular shape and a floor panel provided on the upper surface of the frame, and the floor surface of the floor panel is a walking roof unit. It is formed at the same height level as the roof surface of.

特開２０００－２８２６５６号公報Japanese Unexamined Patent Publication No. 2000-282656

すなわち、上記先行技術では、外階段の上部を構成する上部床ユニットは、歩行屋根ユニットに接合された構成となっており、上部床ユニットと歩行屋根ユニットの間には、外廊下は存在しない。このため、このユニット建物に外廊下を設ける場合、外階段ユニットを支持する支柱とは別に、外廊下を支持する支柱が別途必要となり、その分支柱の数が増えてしまう。 That is, in the above prior art, the upper floor unit constituting the upper part of the outer stairs is joined to the walking roof unit, and there is no outer corridor between the upper floor unit and the walking roof unit. Therefore, when an outer corridor is provided in this unit building, a support column for supporting the outer corridor is required separately from the support column for supporting the outer staircase unit, and the number of columns increases accordingly.

本発明は上記問題を考慮し、できるだけ支柱の数を少なくした状態で外階段及び外廊下を設けることが可能な外階段構造及びユニット建物を得ることが目的である。 In consideration of the above problems, it is an object of the present invention to obtain an outer staircase structure and a unit building in which an outer staircase and an outer corridor can be provided with the number of columns as small as possible.

上記目的を達成するために、第１の態様に係る外階段構造は、建物本体の外壁部に沿って設けられた外階段と、前記外階段と繋がり、前記建物本体のコーナ部を回り込んで当該建物本体の外壁部に沿って設けられた外廊下と、を有している。 In order to achieve the above object, the outer staircase structure according to the first aspect is connected to the outer staircase provided along the outer wall portion of the building body and the outer staircase, and wraps around the corner portion of the building body. It has an outer corridor provided along the outer wall of the building body.

第１の態様に係る外階段構造では、建物本体の外壁部に沿って外階段が設けられており、当該外階段には外廊下が繋がっている。この外廊下は、建物本体のコーナ部を回り込んで建物本体の外壁部に沿って設けられている。本態様では、外廊下にはいわゆる外階段の踊り場が含まれており、これにより、外階段と外廊下が繋がると共に、建物本体のコーナ部を回り込んで外階段及び外廊下が建物本体の外壁部に沿って設けられている。 In the outer staircase structure according to the first aspect, an outer staircase is provided along the outer wall portion of the building body, and the outer corridor is connected to the outer staircase. This outer corridor is provided around the corner part of the building body along the outer wall part of the building body. In this embodiment, the outer corridor includes a so-called landing place for the outer stairs, whereby the outer stairs and the outer corridor are connected, and the outer stairs and the outer corridor wrap around the corners of the building body to form the outer wall of the building body. It is provided along the section.

このように、外廊下に踊り場が含まれ、当該外廊下と外階段が繋がるようにすることで、外階段及び外廊下に別部材としての踊り場をそれぞれ連結させる必要がなくなる。これにより、別部材としての踊り場専用の支柱を削減することができる。 In this way, the landing is included in the outer corridor, and by connecting the outer corridor and the outer stairs, it is not necessary to connect the landing as a separate member to the outer stairs and the outer corridor. As a result, it is possible to reduce the number of columns dedicated to the landing as a separate member.

第２の態様に係る外階段構造は、第１の態様に係る外階段構造において、前記外廊下は、前記建物本体の外壁部に沿って設けられた廊下部と、前記廊下部と一体に形成され、前記建物本体から延出して前記外階段と繋がる踊り場と、を含んで構成されている。 The outer staircase structure according to the second aspect is the outer staircase structure according to the first aspect, in which the outer corridor is formed integrally with the corridor lower portion provided along the outer wall portion of the building body and the corridor lower portion. It is configured to include a landing that extends from the building body and connects to the outer stairs.

第２の態様に係る外階段構造では、外廊下は、廊下部と踊り場とを含んで構成されている。廊下部は、建物本体の外壁部に沿って設けられており、踊り場は、廊下部と一体に形成され、かつ当該建物本体から延出して、外階段と繋がっている。 In the outer staircase structure according to the second aspect, the outer corridor is configured to include a corridor lower part and a landing. The lower part of the corridor is provided along the outer wall of the main body of the building, and the landing is formed integrally with the lower part of the corridor and extends from the main body of the building to connect with the outer stairs.

第３の態様に係る外階段構造は、第１の態様又は第２の態様に係る外階段構造において、前記建物本体の構造躯体に連結され、前記外階段の上端部を支持する第１受け部材を備えている。 The outer staircase structure according to the third aspect is the first receiving member which is connected to the structural frame of the building body and supports the upper end portion of the outer staircase in the outer staircase structure according to the first aspect or the second aspect. It is equipped with.

第３の態様に係る外階段構造では、建物本体の構造躯体に第１受け部材が連結されており、当該第１受け部材によって外階段の上端部が支持されている。 In the outer staircase structure according to the third aspect, the first receiving member is connected to the structural frame of the building body, and the upper end portion of the outer staircase is supported by the first receiving member.

第４の態様に係る外階段構造は、第１の態様～第３の態様の何れか１の態様に係る外階段構造において、前記建物本体の構造躯体に連結され、前記外廊下を支持する第２受け部材を備えている。 The outer staircase structure according to the fourth aspect is the outer staircase structure according to any one of the first to third aspects, in which the outer staircase structure is connected to the structural frame of the building body and supports the outer corridor. It is equipped with two receiving members.

第４の態様に係る外階段構造では、建物本体の構造躯体に第２受け部材が連結されており、当該第２受け部材によって外廊下が支持されている。 In the outer staircase structure according to the fourth aspect, the second receiving member is connected to the structural frame of the building body, and the outer corridor is supported by the second receiving member.

第５の態様に係る外階段構造は、第１の態様～第４の態様の何れか１の態様に係る外階段構造において、前記外廊下は、少なくとも一つの住戸の玄関を跨いでいる。 The outer staircase structure according to the fifth aspect is the outer staircase structure according to any one of the first to fourth aspects, and the outer corridor straddles the entrance of at least one dwelling unit.

前述のように、第１の態様に係る外階段構造において、外廊下と外階段が繋がるようにすることで、外階段及び外廊下に別部材としての踊り場をそれぞれ連結させる必要がなくなり、別部材としての踊り場専用の支柱を削減することができる。このため、第５の態様に係る外階段構造では、少なくとも一つの住戸の玄関を跨いで外廊下を設けることが可能となる。 As described above, in the outer staircase structure according to the first aspect, by connecting the outer corridor and the outer staircase, it is not necessary to connect the landing ground as a separate member to the outer staircase and the outer corridor, respectively, and the separate member. It is possible to reduce the number of stairs dedicated to the landing as. Therefore, in the outer staircase structure according to the fifth aspect, it is possible to provide an outer corridor straddling the entrance of at least one dwelling unit.

第６の態様に係るユニット建物は、第１の態様～第５の態様の何れか１の態様に係る外階段構造を備えている。 The unit building according to the sixth aspect has an outer staircase structure according to any one of the first to fifth aspects.

第６の態様に係るユニット建物では、第１の態様～第５の態様の何れか１の態様に係る外階段構造における作用を享受することができる。 In the unit building according to the sixth aspect, the operation in the outer staircase structure according to any one of the first to fifth aspects can be enjoyed.

以上説明したように、本態様に係る外階段構造及びユニット建物は、できるだけ支柱の数を少なくした状態で外階段及び外廊下を設けることができる、という優れた効果を有する。 As described above, the outer staircase structure and the unit building according to this embodiment have an excellent effect that the outer staircase and the outer corridor can be provided with the number of columns as small as possible.

本実施の形態に係る外階段構造を斜め上方側から見た分解斜視図である。It is an exploded perspective view which looked at the outer staircase structure which concerns on this embodiment from the diagonally upper side. 本実施の形態に係る外階段構造を斜め上方側から見た斜視図である。It is a perspective view which looked at the outer staircase structure which concerns on this embodiment from the diagonally upper side. 本実施の形態に係る外階段構造を構成する階段受け部材及び外廊下受け部材が建物ユニットの天井大梁に結合された状態を示す平面図である。It is a top view which shows the state which the staircase receiving member and the outer corridor receiving member constituting the outer staircase structure which concerns on this embodiment are connected to the ceiling girder of a building unit. （Ａ）は、本実施の形態に係る外階段構造を構成する外廊下フレームが建物ユニットの天井大梁に結合された状態を示す平面図であり、（Ｂ）は、階段受け部材に外廊下フレームの一部が結合された結合部を示す一部拡大分解斜視図である。(A) is a plan view showing a state in which the outer corridor frame constituting the outer staircase structure according to the present embodiment is connected to the ceiling girder of the building unit, and (B) is the outer corridor frame to the staircase receiving member. It is a partially enlarged exploded perspective view which shows the joint part which a part of is bonded. （Ａ）は、本実施の形態に係る外階段構造を構成する外廊下フレームが建物ユニットの天井大梁に結合された状態を示す平面図であり、（Ｂ）は、階段受け部材に外廊下フレームの一部が結合された結合部を支柱に結合させる状態を示す一部拡大分解斜視図である。(A) is a plan view showing a state in which the outer corridor frame constituting the outer staircase structure according to the present embodiment is connected to the ceiling girder of the building unit, and (B) is the outer corridor frame to the staircase receiving member. It is a partially enlarged exploded perspective view showing a state in which a joint portion to which a part of the above is connected is connected to a support column. （Ａ）は、本実施の形態に係る外階段構造を構成する外階段が階段受け部材に結合された状態を示す平面図であり、（Ｂ）は、階段受け部材と外廊下フレームの一部が結合された結合部を支柱に結合させる状態を示す一部拡大分解斜視図である。(A) is a plan view showing a state in which the outer stairs constituting the outer stairs structure according to the present embodiment are connected to the stairs receiving member, and (B) is a part of the stairs receiving member and the outer corridor frame. It is a partially enlarged exploded perspective view showing a state in which a joint portion to which is connected is connected to a support column. 本実施の形態に係る外階段構造を構成する外階段が階段受け部材に結合された状態を示す平面図である。It is a top view which shows the state which the outer stairs constituting the outer stairs structure which concerns on this embodiment are connected to the stairs receiving member.

以下、図面を用いて、本発明に係る外階段構造の一実施形態について説明する。
（外階段構造の構成） Hereinafter, an embodiment of the outer staircase structure according to the present invention will be described with reference to the drawings.
(Structure of outer staircase structure)

まず、本実施の形態に係る外階段構造の構成について説明する。
図１には、本実施の形態に係るユニット建物（建物本体）１０の一部を構成する外階段構造１２を斜め上方側から見た分解斜視図が示されており、図２には、当該外階段構造１２を斜め上方側から見た斜視図が示されている。 First, the configuration of the outer staircase structure according to the present embodiment will be described.
FIG. 1 shows an exploded perspective view of the outer staircase structure 12 constituting a part of the unit building (building body) 10 according to the present embodiment as viewed from an obliquely upper side, and FIG. 2 shows the said. A perspective view of the outer staircase structure 12 as viewed from diagonally above is shown.

なお、ここでは、ユニット建物１０の一階部分１４の上部と二階部分１６の下部が図示されているが、一階部分１４の下部と二階部分１６の下部、一階部分１４の上部と二階部分１６の上部の構成は、それぞれ略同じであるため、ユニット建物１０の一階部分１４の下部と二階部分１６の上部の図示を省略している。 Although the upper part of the first floor part 14 and the lower part of the second floor part 16 of the unit building 10 are shown here, the lower part of the first floor part 14 and the lower part of the second floor part 16, the upper part of the first floor part 14 and the second floor part are shown. Since the configurations of the upper portions of 16 are substantially the same, the illustration of the lower portion of the first floor portion 14 and the upper portion of the second floor portion 16 of the unit building 10 is omitted.

図１及び図２に示されるように、ユニット建物１０は、複数の建物ユニット１８を備えている。当該ユニット建物１０は、略箱形を成しており、四隅にそれぞれ同じ長さを有する角筒状の柱（構造躯体）２０が立設されている。そして、各柱２０の上端部及び下端部には、それぞれ角筒状の上仕口部２２、下仕口部２４が設けられている。 As shown in FIGS. 1 and 2, the unit building 10 includes a plurality of building units 18. The unit building 10 has a substantially box shape, and square cylindrical columns (structural skeletons) 20 having the same length are erected at the four corners. The upper end portion and the lower end portion of each pillar 20 are provided with a square tubular upper finish portion 22 and a lower finish portion 24, respectively.

なお、図１では、前述のように、ユニット建物１０の一階部分１４の上部と二階部分１６の下部が図示されているため、上仕口部２２は一階部分１４の建物ユニット１８側が図示され、下仕口部２４は二階部分１６の建物ユニット１８側が図示されている。 As described above, in FIG. 1, since the upper part of the first floor portion 14 and the lower part of the second floor portion 16 of the unit building 10 are shown, the upper part 22 is shown on the building unit 18 side of the first floor portion 14. The lower part 24 is shown on the side of the building unit 18 of the second floor part 16.

建物ユニット１８の桁方向（矢印Ａ方向）に沿って隣り合う柱２０の上仕口部２２には、天井大梁（構造躯体）２６がそれぞれ結合されており、建物ユニット１８の妻方向（矢印Ｂ方向）に沿って隣り合う柱２０の上仕口部２２には、天井大梁２８がそれぞれ結合されている。 Ceiling girders (structural skeletons) 26 are connected to the upper joints 22 of columns 20 adjacent to each other along the girder direction (arrow A direction) of the building unit 18, and the wife direction of the building unit 18 (arrow B). Ceiling girders 28 are connected to the upper joints 22 of the columns 20 adjacent to each other along the direction).

一方、建物ユニット１８の桁方向に沿って隣り合う柱２０の下仕口部２４には、床大梁３０がそれぞれ結合されており、建物ユニット１８の妻方向に沿って隣り合う柱２０の下仕口部２４には、床大梁３２がそれぞれ結合されている。さらに、建物ユニット１８には、柱２０の下端側に床パネル（図示省略）が設けられており、柱２０の上端側には天井パネル（図示省略）が設けられている。 On the other hand, floor girders 30 are connected to the subparts 24 of the pillars 20 adjacent to each other along the girder direction of the building unit 18, and the subordinates of the pillars 20 adjacent to each other along the wife direction of the building unit 18 are connected to each other. Floor girders 32 are connected to the mouth portion 24, respectively. Further, the building unit 18 is provided with a floor panel (not shown) on the lower end side of the pillar 20 and a ceiling panel (not shown) on the upper end side of the pillar 20.

そして、本実施形態における外階段構造１２は、外階段３４と外廊下３６を含んで構成されている。外階段３４は、ここでは、ユニット建物１０の一階部分１４と二階部分１６を架け渡しており、ユニット建物１０の一部を構成する建物ユニット１８の外壁部（図示省略）に沿って設けられている。 The outer staircase structure 12 in the present embodiment includes an outer staircase 34 and an outer corridor 36. Here, the outer staircase 34 bridges the first floor portion 14 and the second floor portion 16 of the unit building 10, and is provided along the outer wall portion (not shown) of the building unit 18 constituting a part of the unit building 10. ing.

ここで、外廊下３６は、廊下部３８と踊り場４０とを含んで構成されている。廊下部３８は、建物ユニット１８の外壁部に沿って設けられており、踊り場４０は、廊下部３８と一体に形成され、かつ建物ユニット１８から延出して外階段３４と繋がっている。つまり、外廊下３６は、外階段３４と繋がることで当該建物ユニット１８のコーナ部Ｐを回り込み、建物ユニット１８の外壁部に沿って設けられている。 Here, the outer corridor 36 is configured to include a corridor lower part 38 and a landing 40. The corridor lower part 38 is provided along the outer wall portion of the building unit 18, and the landing 40 is formed integrally with the corridor lower part 38 and extends from the building unit 18 and is connected to the outer stairs 34. That is, the outer corridor 36 is provided along the outer wall portion of the building unit 18 so as to go around the corner portion P of the building unit 18 by connecting to the outer stairs 34.

次に、外階段３４及び外廊下３６の組付け方法の一例について説明する。
まず、図１及び図３に示されるように、建物ユニット１８のコーナ部Ｐの柱２０の上仕口部２２に対して、建物ユニット１８の桁方向（矢印Ａ方向）に沿って配置される階段受け部材（第１受け部材）４２の長手方向の一端部４２Ａを溶接等により結合させる。 Next, an example of how to assemble the outer stairs 34 and the outer corridor 36 will be described.
First, as shown in FIGS. 1 and 3, the building unit 18 is arranged along the girder direction (arrow A direction) of the building unit 18 with respect to the upper partition portion 22 of the pillar 20 of the corner portion P of the building unit 18. One end portion 42A in the longitudinal direction of the staircase receiving member (first receiving member) 42 is joined by welding or the like.

また、建物ユニット１８の天井大梁２６に対して、溶接等によりブラケット５８、５９を複数結合させる。なお、一対のブラケット５９の間に複数のブラケット５８が配置されており、当該ブラケット５９には、建物ユニット１８の妻方向（矢印Ｂ方向）に沿って配置される一対の外廊下受け部材（第２受け部材）６０の長手方向の一端部６０Ａをそれぞれ結合させる。 Further, a plurality of brackets 58 and 59 are connected to the ceiling girder 26 of the building unit 18 by welding or the like. A plurality of brackets 58 are arranged between the pair of brackets 59, and the bracket 59 has a pair of outer corridor receiving members (first) arranged along the wife direction (arrow B direction) of the building unit 18. 2 One end portion 60A in the longitudinal direction of the receiving member) 60 is connected to each other.

そして、図１及び図４（Ａ）に示されるように、階段受け部材４２の長手方向の他端部４２Ｂには、外廊下３６の骨格を構成する外廊下フレーム４４の一部（後述する短尺フレーム４４Ｂ）を結合させる（結合部５０）。 Then, as shown in FIGS. 1 and 4, the other end 42B in the longitudinal direction of the staircase receiving member 42 is a part of the outer corridor frame 44 (short length described later) constituting the skeleton of the outer corridor 36. Frame 44B) is coupled (joining portion 50).

ここで、外廊下フレーム４４は、建物ユニット１８の外壁部側を開口とする略Ｅ字状とされており、建物ユニット１８の外壁部に沿った方向（外階段３４の延出方向に対して略直交する方向）が長手方向とされている。 Here, the outer corridor frame 44 has a substantially E-shape with the outer wall side of the building unit 18 as an opening, and is in a direction along the outer wall portion of the building unit 18 (relative to the extending direction of the outer stairs 34). The direction substantially orthogonal to each other) is the longitudinal direction.

当該外廊下フレーム４４は、長手方向に沿って配置される長尺フレーム４４Ａと、長尺フレーム４４Ａの両端部に設けられ当該長尺フレーム４４Ａに対して略直交して配置される短尺フレーム４４Ｂ、４４Ｃと、短尺フレーム４４Ｂと短尺フレーム４４Ｃの間に配置された短尺フレーム４４Ｄと、を含んで構成されている。また、短尺フレーム４４Ｂと短尺フレーム４４Ｃは、一対の外廊下受け部材６０の外側かつ近傍に配置可能とされる。 The outer corridor frame 44 includes a long frame 44A arranged along the longitudinal direction, and a short frame 44B provided at both ends of the long frame 44A and arranged substantially orthogonal to the long frame 44A. It is configured to include 44C and a short frame 44D arranged between the short frame 44B and the short frame 44C. Further, the short frame 44B and the short frame 44C can be arranged on the outside and in the vicinity of the pair of outer corridor receiving members 60.

さらに、外廊下フレーム４４の内側には、短尺フレーム４４Ｂと短尺フレーム４４Ｃの間を架け渡すようにして長尺梁４４Ｅが設けられており、長尺梁４４Ｅの長手方向の両端部は、短尺フレーム４４Ｂ、４４Ｃにそれぞれ結合されている。 Further, a long beam 44E is provided inside the outer corridor frame 44 so as to bridge between the short frame 44B and the short frame 44C, and both ends of the long beam 44E in the longitudinal direction are short frames. It is bound to 44B and 44C, respectively.

一方、長尺フレーム４４Ａからは、長尺梁４４Ｅに対して略直交するようにして短尺梁４４Ｆが片持ち状に延出されている。すなわち、当該短尺梁４４Ｆの長手方向の一端部は、長尺フレーム４４Ａに結合されており、短尺梁４４Ｆの長手方向の他端部は、建物ユニット１８の天井大梁２６に結合されたブラケット５８（後述する）に結合可能とされる。 On the other hand, from the long frame 44A, the short beam 44F extends in a cantilever shape so as to be substantially orthogonal to the long beam 44E. That is, one end of the short beam 44F in the longitudinal direction is connected to the long frame 44A, and the other end of the short beam 44F in the longitudinal direction is connected to the ceiling girder 26 of the building unit 18 (bracket 58). It is possible to combine with (described later).

また、長尺フレーム４４Ａと短尺フレーム４４Ｂ、４４Ｃ、４４Ｄとは、互いに結合されている。なお、以下の説明において、長尺フレーム４４Ａと短尺フレーム４４Ｂとが結合された部位を結合部５１とし、長尺フレーム４４Ａと短尺フレーム４４Ｃとが結合された部位を結合部５３とする。 Further, the long frame 44A and the short frames 44B, 44C, 44D are coupled to each other. In the following description, the portion where the long frame 44A and the short frame 44B are connected is referred to as a coupling portion 51, and the portion where the long frame 44A and the short frame 44C are coupled is referred to as a coupling portion 53.

そして、本実施形態では、外廊下フレーム４４において、長尺フレーム４４Ａの一部と短尺フレーム４４Ｂ、４４Ｄとを含んで踊り場４０が構成され、長尺フレーム４４Ａの他の一部と短尺フレーム４４Ｃ、４４Ｄとを含んで廊下部３８が構成されている。なお、外廊下フレーム４４の上には、外廊下パネル４５（図２参照）が結合されるようになっている。 In the present embodiment, in the outer corridor frame 44, the landing 40 is configured by including a part of the long frame 44A and the short frames 44B and 44D, and the other part of the long frame 44A and the short frame 44C, The corridor lower part 38 is configured including 44D. The outer corridor panel 45 (see FIG. 2) is coupled to the outer corridor frame 44.

ところで、本実施形態では、図４（Ａ）に示されるように、外廊下フレーム４４を外廊下受け部材６０上に載置し、外廊下受け部材６０の他端部６０Ｂを外廊下フレーム４４の長尺フレーム４４Ａに結合させる。一方、図４（Ｂ）に示されるように、例えば、階段受け部材４２及び外廊下フレーム４４は、溝型鋼とされており、ウエブ４６と一対のフランジ部４８とで構成されている。 By the way, in the present embodiment, as shown in FIG. 4A, the outer corridor frame 44 is placed on the outer corridor receiving member 60, and the other end 60B of the outer corridor receiving member 60 is placed on the outer corridor frame 44. It is connected to the long frame 44A. On the other hand, as shown in FIG. 4B, for example, the staircase receiving member 42 and the outer corridor frame 44 are made of channel steel, and are composed of a web 46 and a pair of flange portions 48.

このため、結合部５０では、階段受け部材４２、外廊下フレーム４４の短尺フレーム４４Ｂの内部において、ウエブ４６及び一対のフランジ部４８を架け渡すようにして補強プレート５２、５４がそれぞれ結合されている。そして、階段受け部材４２内に結合された補強プレート５２に対して、図示しないボルト等によって外廊下フレーム４４の短尺フレーム４４Ｂ内に結合された補強プレート５４を締結させる。 Therefore, in the joint portion 50, the reinforcing plates 52 and 54 are connected to each other so as to bridge the web 46 and the pair of flange portions 48 inside the staircase receiving member 42 and the short frame 44B of the outer corridor frame 44. .. Then, the reinforcing plate 54 coupled to the reinforcing plate 52 coupled to the staircase receiving member 42 is fastened to the reinforcing plate 54 coupled to the short frame 44B of the outer corridor frame 44 by a bolt or the like (not shown).

これにより、当該補強プレート５２、５４を介して、階段受け部材４２に外廊下フレーム４４の短尺フレーム４４Ｂが結合される（結合部５０）。言い換えると、図４（Ａ）に示されるように、階段受け部材４２及び短尺フレーム４４Ｂを介して、外廊下フレーム４４が建物ユニット１８に固定（結合）される。 As a result, the short frame 44B of the outer corridor frame 44 is coupled to the staircase receiving member 42 via the reinforcing plates 52 and 54 (joining portion 50). In other words, as shown in FIG. 4A, the outer corridor frame 44 is fixed (coupled) to the building unit 18 via the staircase receiving member 42 and the short frame 44B.

一方、図５（Ａ）、（Ｂ）に示されるように、支柱５５の先端には、平面視で略矩形状の台座５６が溶接等により結合されており、当該台座５６に対して、図示しないボルト等によって、階段受け部材４２と外廊下フレーム４４の短尺フレーム４４Ｂとが結合された結合部５０を締結させる。 On the other hand, as shown in FIGS. 5A and 5B, a substantially rectangular pedestal 56 in a plan view is joined to the tip of the support column 55 by welding or the like, and is shown with respect to the pedestal 56. The joint portion 50 in which the staircase receiving member 42 and the short frame 44B of the outer corridor frame 44 are connected is fastened by a bolt or the like.

これにより、階段受け部材４２及び外廊下フレーム４４の短尺フレーム４４Ｂが、支柱５５によって支持される。階段受け部材４２及び短尺フレーム４４Ｂが支柱５５に支持された状態で、図２に示されるように、階段受け部材４２には、外階段３４の上端部３４Ａが結合される。なお、本実施形態では、外階段３４の下端部３４Ｂは、地面ＧＬに固定されている。 As a result, the short frame 44B of the staircase receiving member 42 and the outer corridor frame 44 is supported by the support column 55. As shown in FIG. 2, the upper end portion 34A of the outer staircase 34 is connected to the staircase receiving member 42 in a state where the staircase receiving member 42 and the short frame 44B are supported by the support column 55. In this embodiment, the lower end portion 34B of the outer staircase 34 is fixed to the ground GL.

また、図１及び図３に示されるように、建物ユニット１８の天井大梁２６には、ブラケット５８、５９が溶接などにより複数結合されている。前述のように、ブラケット５８には、長尺フレーム４４Ａに結合された短尺梁４４Ｆの長手方向の他端部が結合される。 Further, as shown in FIGS. 1 and 3, a plurality of brackets 58 and 59 are connected to the ceiling girder 26 of the building unit 18 by welding or the like. As described above, the bracket 58 is coupled to the other end of the short beam 44F coupled to the long frame 44A in the longitudinal direction.

このように、ブラケット５８を介して、短尺梁４４Ｆを天井大梁２６に固定すると共に、ブラケット５９を介して天井大梁２６に固定された外廊下受け部材６０を外廊下フレーム４４の長尺フレーム４４Ａに結合させることにより、外廊下フレーム４４自体の強度を向上させている。 In this way, the short beam 44F is fixed to the ceiling girder 26 via the bracket 58, and the outer corridor receiving member 60 fixed to the ceiling girder 26 via the bracket 59 is attached to the long frame 44A of the outer corridor frame 44. By combining them, the strength of the outer corridor frame 44 itself is improved.

なお、図６（Ａ）、（Ｂ）に示されるように、結合部５１、５３においても、結合部５０と同様に、支柱５５の先端には、平面視で略矩形状の台座５６が結合されており、当該台座５６に対して、図示しないボルト等によって、外廊下フレーム４４の短尺フレーム４４Ｂと長尺フレーム４４Ａとが結合された結合部５１、５３を締結させる。そして、これにより、外廊下フレーム４４の短尺フレーム４４Ｂ及び長尺フレーム４４Ａが支柱５５によって支持される。 As shown in FIGS. 6 (A) and 6 (B), also in the joint portions 51 and 53, a substantially rectangular pedestal 56 is connected to the tip of the support column 55 in a plan view as in the joint portion 50. The connecting portions 51 and 53 to which the short frame 44B and the long frame 44A of the outer corridor frame 44 are connected are fastened to the pedestal 56 by bolts or the like (not shown). As a result, the short frame 44B and the long frame 44A of the outer corridor frame 44 are supported by the columns 55.

（外階段構造の作用及び効果）
次に、本実施の形態に係る外階段構造の作用及び効果について説明する。 (Action and effect of outer staircase structure)
Next, the operation and effect of the outer staircase structure according to the present embodiment will be described.

図２及び図７に示されるように、本実施形態では、ユニット建物１０の外壁部に沿って外階段３４が設けられており、当該外階段３４には外廊下３６が繋がっている。この外廊下３６は、ユニット建物１０のコーナ部Ｐを回り込んでユニット建物１０の外壁部に沿って設けられている。 As shown in FIGS. 2 and 7, in the present embodiment, an outer staircase 34 is provided along the outer wall portion of the unit building 10, and the outer corridor 36 is connected to the outer staircase 34. The outer corridor 36 is provided around the corner portion P of the unit building 10 along the outer wall portion of the unit building 10.

つまり、本実施形態における外階段構造１２は、外階段３４と外廊下３６を含んで構成されている。さらに、外廊下３６は、廊下部３８と踊り場４０とを含んで構成されており、廊下部３８は、建物ユニット１８の外壁部に沿って設けられ、踊り場４０は、廊下部３８と一体に形成され、かつ建物ユニット１８から延出して外階段３４と繋がっている。 That is, the outer staircase structure 12 in the present embodiment includes the outer staircase 34 and the outer corridor 36. Further, the outer corridor 36 is configured to include a corridor lower part 38 and a landing 40, the corridor lower part 38 is provided along the outer wall portion of the building unit 18, and the landing 40 is integrally formed with the corridor lower part 38. And it extends from the building unit 18 and is connected to the outer stairs 34.

このように、外廊下３６に踊り場４０が含まれ、当該外廊下３６と外階段３４が繋がるようにすることで、図示はしないが、外階段３４及び外廊下３６に別部材としての踊り場４０をそれぞれ連結させる必要がなくなる。これにより、別部材としての踊り場専用の支柱を削減することができる。 As described above, the outer corridor 36 includes the landing 40, and by connecting the outer corridor 36 and the outer stairs 34, although not shown, the outer stairs 34 and the outer corridor 36 have a landing 40 as a separate member. There is no need to connect each. As a result, it is possible to reduce the number of columns dedicated to the landing as a separate member.

つまり、本実施形態によれば、できるだけ支柱５５の数を少なくした状態で外階段３４及び外廊下３６を設けることができる。さらに、本実施形態によれば、支柱が削減された分、支柱が設けられることによって回避された玄関の配置が可能となる。このため、例えば、図示はしないが、隣接して配置された集合住宅等において、外廊下３６の下方側に玄関を設けることが可能となる。 That is, according to the present embodiment, the outer stairs 34 and the outer corridor 36 can be provided with the number of columns 55 as small as possible. Further, according to the present embodiment, since the number of columns is reduced, it is possible to arrange the entrances that are avoided by providing the columns. For this reason, for example, although not shown, it is possible to provide an entrance on the lower side of the outer corridor 36 in an apartment house or the like arranged adjacent to each other.

なお、本実施形態では、２階建ての外階段構造１２について説明したが、本発明は、３階建て以上の外階段構造についても適用可能である。 Although the two-story outer staircase structure 12 has been described in the present embodiment, the present invention can also be applied to a three-story or more-story outer staircase structure.

以上、本発明の実施形態について説明したが、本発明は、上記に限定されるものでなく、一実施形態及び各種の変形例を適宜組み合わせて用いても良いし、本発明の要旨を逸脱しない範囲内において上記以外にも種々変形して実施することが可能であることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above, and one embodiment and various modifications may be used in combination as appropriate, and the present invention does not deviate from the gist of the present invention. Of course, it is possible to carry out various modifications other than the above within the range.

１０ ユニット建物（建物本体）
１２ 外階段構造
１８ 建物ユニット（建物本体）
２０ 柱（構造躯体）
２６ 天井大梁（構造躯体）
３４ 外階段（外階段構造）
３４Ａ 上端部（外階段の上端部）
３６ 外廊下（外階段構造）
３８ 廊下部（外廊下）
４０ 踊り場（外廊下）
４２ 階段受け部材（第１受け部材）
４４ 外廊下フレーム（外廊下）
６０ 外廊下受け部材（第２受け部材）
Ｐ コーナ部 10 unit building (building body)
12 Outer staircase structure 18 Building unit (building body)
20 pillars (structural frame)
26 Ceiling girder (structural frame)
34 Outer stairs (outer stairs structure)
34A upper end (upper end of outer stairs)
36 Outer corridor (outer staircase structure)
38 Lower corridor (outer corridor)
40 Landing (outer corridor)
42 Stairs receiving member (first receiving member)
44 Outer corridor frame (outer corridor)
60 Outer corridor receiving member (second receiving member)
P corner part

Claims (5)

建物本体の外壁部に沿って設けられた外階段と、
前記外階段と繋がり、前記建物本体のコーナ部を回り込んで当該建物本体の外壁部に沿って設けられた外廊下と、
前記建物本体の構造躯体に連結され、前記外階段の上端部を支持する第１受け部材と、
を備え、
前記第１受け部材は、
対向して配置された一対のフランジ部と、
前記一対のフランジ部を架け渡すウエブと、
前記一対のフランジ部の先端から張り出す長さに設定されて当該ウエブ及び前記一対のフランジ部を架け渡すようにして内部に結合された板状の第１補強プレートと、
を含んで構成されると共に、
前記第１受け部材と結合され、前記外廊下の骨格を構成する外廊下フレームの一部を成す短尺フレームは、
対向して配置された一対のフランジ部と、
前記一対のフランジ部を架け渡すウエブと、
略Ｌ字状を成し、一方側は前記ウエブ及び前記一対のフランジ部を架け渡すようにして内部に結合されると共に他方側は当該ウエブに対して略平行となるように前記一対のフランジ部の先端に結合された第２補強プレートと、
を含んで構成され、
前記第１受け部材に対して前記短尺フレームが略直交した状態で前記第２補強プレートの他方側に前記第１補強プレートの先端部が結合された外階段構造。 The outer stairs along the outer wall of the building body,
An outer corridor that is connected to the outer stairs, wraps around the corner of the building, and is provided along the outer wall of the building.
A first receiving member that is connected to the structural frame of the building body and supports the upper end of the outer stairs, and
Equipped with
The first receiving member is
A pair of flanges arranged facing each other and
A web that spans the pair of flanges,
A plate-shaped first reinforcing plate that is set to a length overhanging from the tips of the pair of flanges and is internally coupled so as to bridge the web and the pair of flanges.
Consists of including
The short frame, which is connected to the first receiving member and forms a part of the outer corridor frame constituting the skeleton of the outer corridor, is
A pair of flanges arranged facing each other and
A web that spans the pair of flanges,
It has a substantially L-shape, and one side is connected to the inside so as to bridge the web and the pair of flange portions, and the other side is substantially parallel to the web. The second reinforcing plate attached to the tip of the
Consists of, including
An outer staircase structure in which the tip end portion of the first reinforcing plate is connected to the other side of the second reinforcing plate in a state where the short frame is substantially orthogonal to the first receiving member . 前記外廊下は、
前記建物本体の外壁部に沿って設けられた廊下部と、
前記廊下部と一体に形成され、前記建物本体から延出して前記外階段と繋がる踊り場と、
を含んで構成されている請求項１に記載の外階段構造。 The outer corridor
The lower part of the corridor provided along the outer wall of the building body,
A landing that is integrally formed with the corridor and extends from the building body to connect to the outer stairs.
The outer staircase structure according to claim 1, which is configured to include. 前記建物本体の構造躯体に連結され、前記外廊下を支持する第２受け部材を備えている請求項１又は請求項２に記載の外階段構造。 The outer staircase structure according to claim 1 or 2, which is connected to the structural frame of the building body and includes a second receiving member that supports the outer corridor. 前記外廊下は、少なくとも一つの住戸の玄関を跨いでいる請求項１～請求項３の何れか１項に記載の外階段構造。 The outer staircase structure according to any one of claims 1 to 3, wherein the outer corridor straddles the entrance of at least one dwelling unit. 請求項１～請求項４の何れか１項に記載の外階段構造を備えたユニット建物。 A unit building having an outer staircase structure according to any one of claims 1 to 4.
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JP2008075313A (en) 2006-09-20 2008-04-03 Misawa Homes Co Ltd Building unit and prefabricated building
JP2015200139A (en) 2014-04-09 2015-11-12 トヨタホーム株式会社 Building having alcove structure

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