JP3968004B2

JP3968004B2 - Unit building

Info

Publication number: JP3968004B2
Application number: JP2002345986A
Authority: JP
Inventors: 充平松
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2002-11-28
Filing date: 2002-11-28
Publication date: 2007-08-29
Anticipated expiration: 2022-11-28
Also published as: JP2004176469A

Description

【０００１】
【発明の属する技術分野】
本発明はユニット建物に関する。
【０００２】
【従来の技術】
特許文献１に記載の如く、２行２列の４個の下階建物ユニットを並置して建物ユニット群とし、建物ユニット群の行方向の両端位置に壁パネルが立設され、この壁パネル間に跨って、かつ、行間に沿って梁を掛け渡し、この梁にて複数の上階建物ユニットの床パネルを支持するものがある。
【０００３】
【特許文献１】
特開平８−３１１９９９（［００２６］、図１０（ｂ））
【０００４】
【発明が解決しようとする課題】
特許文献１のユニット建物では、上階建物ユニットの垂直荷重を梁によって負担できるものの、上階建物ユニットに対し梁の長手方向に沿って作用する水平荷重は上階の床パネルを介して下階の建物ユニット群の行方向の両端位置に立設されている壁パネルによって負担するものになる。
【０００５】
ところが、水平荷重を下階の建物ユニット群の行方向の両端位置に立設されている壁パネルだけによって十分に負担することには困難があり、上階の床パネルは梁の長手方向に沿ってずれ変位し、梁の両側にて相隣る２つの床パネルが互いに離間するおそれがある。そこで、特許文献１では、下階の２行をなす建物ユニット群の行間に臨んで各１行をなす建物ユニットの側辺部の一部に小壁（耐力壁）を立設し、梁の一端部をこの小壁に掛け渡すとともに、上階の床パネルの端部を梁及び小壁にて支持するものとしている。これにより、上階の床パネルの水平荷重に起因するずれ変位を防止できるものの、小壁の存在が下階のプランを制約するものになり、下階に大きく連続する居室空間を形成することの障害になる。
【０００６】
本発明の課題は、下階の相対する壁パネル間に掛け渡した梁の上に上階の床パネルを支持するに際し、下階のプランの自由度を高めることにある。
【０００７】
【課題を解決するための手段】
請求項１の発明は、床パネルの側辺部に壁パネルを立設した木質壁式ユニットからなる４個の下階建物ユニットを２行２列に並置した下階の建物ユニット群として有し、建物ユニット群の各行にて相隣る建物ユニットの当該行の両端位置に壁パネルが立設され、この壁パネル間に跨って、かつ、行間に沿って断面Ｔ字型の梁を架け渡し、断面Ｔ字型の梁の２つのフランジの長手方向の両端部のそれぞれが、建物ユニット群の行間を挟んで相隣る建物ユニットの壁パネルの上面凹部に埋込まれ、断面Ｔ字型の梁の２つのフランジそれぞれの上面の上に２列をなして相隣る上階床パネルを壁パネルの上面と同一レベルにおいて載せ、該梁のウエブを上階床パネルの厚みの範囲に納め、４個の下階建物ユニットと４個の上階床パネルのずれ変位を防止可能にするユニット建物である。
【０００８】
請求項２の発明は、請求項１の発明において更に、前記フランジの下から貫通する止め具によって、各フランジに各床パネルの端部を接合してなるようにしたものである。
【０００９】
請求項３の発明は、請求項１又は２の発明において更に、前記梁のウエブを挟んで相隣る床パネルの上部間に面材を張り渡してなるようにしたものである。
【００１０】
請求項４の発明は、請求項１〜３のいずれかの発明において更に、前記梁の長手方向に沿う止め具の間隔を300mm以下にするようにしたものである。
【００１３】
【作用】
請求項１の発明によれば下記(a)の作用がある。
(a) 上階建物ユニットの床パネルを支持する小壁（耐力壁）等を下階建物ユニットに設ける必要がなく、下階のプランの自由度を高めることができ、下階に大きく連続する居室空間を形成できる。
請求項２の発明によれば下記 (b) 、 (c) の作用がある。
(b)上階の相隣る床パネルの端部が梁の２つのフランジそれぞれに止め具により接合されるから、梁の長手方向に沿って床パネルに作用する水平荷重は止め具を介して梁にて負担される。従って、床パネルの梁の長手方向に沿うずれ変位、ひいては梁の両側にて相隣る２つの床パネルの相互離間を防止できる。上階の床パネルのずれ変位を防止するための該床パネルが接合される小壁（耐力壁）等を下階に設ける必要がなく、下階のプランの自由度を高めることができる。
【００１４】
(c)梁の長手方向に並ぶ複数の床パネルを梁の２つのフランジのそれぞれに接合させるから、相並ぶ複数の床パネルの上述(b)の梁の長手方向に沿うずれ変位を防止できる。
【００１５】
請求項３の発明によれば下記(d)の作用がある。
(d)梁のウエブを挟んで相隣る床パネルと床パネルに張り渡し面材を設けることにより、それら床パネルのずれ変位、相互離間を防止できる。
【００１６】
請求項４の発明によれば下記(e)の作用がある。
(e)床パネルの端部を梁のフランジに接合する止め具を300mm以下という小間隔で設けることにより、床パネルを梁のフランジに強固に接合し、床パネルのずれ変位、相互離間を防止できる。
【００１９】
【発明の実施の形態】
図１はユニット建物を構成する４個の建物ユニットの配置を示す斜視図、図２はユニット建物における梁の掛け渡し状態を示し、（Ａ）は全体斜視図、（Ｂ）は梁の斜視図、図３はユニット建物における床パネルの載置状態を示す斜視図、図４はユニット建物における面材の張り渡し状態を示す斜視図、図５は相隣る床パネルの接合過程を示す断面図、図６は相隣る床パネルの接合構造を示す断面図である。
【００２０】
ユニット建物１は、複数の建物ユニットを水平面内にて並置するとともに、下階の建物ユニットの上に上階の建物ユニットを搭載して構築される。本実施形態のユニット建物１は、少なくとも一部に、図１〜図４に示す如く、２行２列（２行３列の如くの２行多数列でも可）をなす４個の建物ユニット１０Ａ〜１０Ｄを並置し、下階の各建物ユニット１０Ａ〜１０Ｄの上に上階の各建物ユニットを構成する床パネル２０Ａ〜２０Ｄを搭載している。
【００２１】
建物ユニット１０Ａ〜１０Ｄは、木質壁式ユニットであり、図１に示す如く、方形の床パネル１１の側辺部に壁パネル１２を立設して構成される。
【００２２】
床パネル２０Ａ〜２０Ｄは、図３、図５に示す如く、側根太２１、端根太２２、面材受材２３（側根太２１の間に架設される）からなる床枠組の外周下面に下枠材２４を取着し、かつ床枠組の上面に面材２５を取着して構成される。
【００２３】
ユニット建物１は、下階の建物ユニット１０Ａ〜１０Ｄによって大きく連続する居室空間を形成するため、以下の施工手順で施工される、以下の構造を備える。
【００２４】
(1)２行２列をなす４個の建物ユニット１０Ａ〜１０Ｄを基礎の上に並置する。建物ユニット１０Ａは第１行第１列目、建物ユニット１０Ｂは第１行第２列目、建物ユニット１０Ｃは第２行第１列目、建物ユニット１０Ｄは第２行第２列目に配置される（図１）。
【００２５】
建物ユニット１０Ａ〜１０Ｄは、方形の床パネル１１の４つの側辺部のうち、相交差する２つの側辺部に壁パネル１２を立設し、他の２つの側辺部には壁パネル１２を立設していない。そして、相並ぶ建物ユニット１０Ａ〜１０Ｄの行間（建物ユニット１０Ａと建物ユニット１０Ｃの間、建物ユニット１０Ｂと建物ユニット１０Ｄの間）、及び列間（建物ユニット１０Ａと建物ユニット１０Ｂの間、建物ユニット１０Ｃと建物ユニット１０Ｄの間）に臨む側辺部には壁パネル１２を立設していない。これにより、建物ユニット１０Ａ〜１０Ｄは、相互に壁パネル１２によって仕切られない、大きく連続する居室空間１３を形成する。
【００２６】
(2)第１行と第２行の各１行をなす建物ユニット群、換言すれば第１行の建物ユニット群（建物ユニット１０Ａと建物ユニット１０Ｂ）と第２行の建物ユニット群（建物ユニット１０Ｃと建物ユニット１０Ｄ）を考える。そして、第１行の建物ユニット群の行方向の両端位置、本実施形態では建物ユニット１０Ａと建物ユニット１０Ｂの行方向の外側の側辺部に前述の如くに壁パネル１２を立設する。また、第２行の建物ユニット群の行方向の両端位置、本実施形態では建物ユニット１０Ｃと建物ユニット１０Ｄの行方向の外側の側辺部に前述の如くに壁パネル１２を立設する。
【００２７】
(3)上述(2)の建物ユニット群の行方向の両端位置に立設した壁パネル１２に跨って、かつ２行をなす建物ユニット群の行間、換言すれば第１行の建物ユニット群（建物ユニット１０Ａと建物ユニット１０Ｂ）と第２行の建物ユニット群（建物ユニット１０Ｃと建物ユニット１０Ｄ）の行間に沿って、逆Ｔ字型の断面をもつ梁３０を掛け渡す（図２）。梁３０は、ウエブ３２と、このウエブ３２を挟んで対称な２つのフランジ３１、３１からなる断面逆Ｔ型をなす。
【００２８】
建物ユニット１０Ａ〜１０Ｄの壁パネル１２は梁３０を埋込み、梁３０のフランジ３１の上面を壁パネル１２の上面と面一に設定するための凹部１２Ａを備える。梁３０の２つのフランジ３１の両端部が建物ユニット１０Ａと建物ユニット１０Ｃの壁パネル１２（凹部１２Ａ）、建物ユニット１０Ｂと建物ユニット１０Ｄの壁パネル１２（凹部１２Ａ）のそれぞれに釘又はビス等の止め具４１により接合される。梁３０のフランジ３１には止め具４１のための釘孔が予め設けられている。
【００２９】
(4)梁３０におけるウエブ３２の両側の２つのフランジ３１の上に、２行をなして相隣る上階の各建物ユニット（不図示）の床パネル、換言すれば第１列目で２行をなす床パネル２０Ａと床パネル２０Ｃ、及び第２列目で２行をなす床パネル２０Ｂと床パネル２０Ｄの基端部を載せる（図３）。梁３０の２つのフランジ３１のそれぞれに、梁３０の長手方向に並ぶ床パネル２０Ａと床パネル２０Ｂ、床パネル２０Ｃと床パネル２０Ｄが接合されることになる。尚、各床パネル２０Ａ〜２０Ｄにおいて、梁３０に載る端部に相対する端部と、これに交差する１つの側部（外側の側部）は、対応する下階の建物ユニット１０Ａ〜１０Ｄの壁パネル１２の上面に接合される。
【００３０】
梁３０の２つのフランジ３１の下から貫通する釘又はビス等の止め具４２により、床パネル２０Ａ〜２０Ｄの上記フランジ３１に載っている端部を該フランジ３１に接合する（図５）。床パネル２０Ａ〜２０Ｄの下枠材２４がフランジ３１に接合される。梁３０のフランジ３１には止め具４２のための釘孔が予め設けられている。
梁３０の長手方向に沿う止め具４２の打ち込み間隔は300mm以下とする。
【００３１】
(5)相隣る床パネル２０Ａと床パネル２０Ｃ、床パネル２０Ｂと床パネル２０Ｄの、梁３０のウエブ３２を挟んで相隣る上部間に面材２６を張り渡す（図４〜図６）。張り渡し面材２６は、相隣る各床パネル２０Ａ〜２０Ｄの面材受材２３に釘２７により固定され、面材２５と面一に連続するものになる（図６）。
【００３２】
本実施形態によれば以下の作用がある。
▲１▼上階の相隣る床パネル２０Ａ〜２０Ｄの端部が梁３０の２つのフランジ３１それぞれに止め具４２により接合されるから、梁３０の長手方向に沿って床パネル２０Ａ〜２０Ｄに作用する水平荷重は止め具４２を介して梁３０にて負担される。従って、床パネル２０Ａ〜２０Ｄの梁３０の長手方向に沿うずれ変位、ひいては梁３０の両側にて相隣る２つの床パネル２０Ａ〜２０Ｄの相互離間を防止できる。上階の床パネル２０Ａ〜２０Ｄのずれ変位を防止するための該床パネル２０Ａ〜２０Ｄが接合される小壁（耐力壁）等を下階に設ける必要がなく、下階のプランの自由度を高めることができる。
【００３３】
▲２▼梁３０の長手方向に並ぶ床パネル２０Ａと床パネル２０Ｂ、床パネル２０Ｃと床パネル２０Ｄを梁３０の２つのフランジ３１のそれぞれに接合することにより、相並ぶ複数の床パネル２０Ａ〜２０Ｄの上述▲１▼の梁３０の長手方向に沿うずれ変位を防止できる。
【００３４】
▲３▼梁３０のウエブ３２を挟んで相隣る床パネル２０Ａと２０Ｃと床パネル２０Ｂと２０Ｄに張り渡し面材２６を設けることにより、それら床パネル２０Ａ〜２０Ｄのずれ変位、相互離間を防止できる。
【００３５】
▲４▼床パネル２０Ａ〜２０Ｄの端部を梁３０のフランジ３１に接合する止め具４２を300mm以下という小間隔で設けることにより、床パネル２０Ａ〜２０Ｄを梁３０のフランジ３１に強固に接合し、床パネル２０Ａ〜２０Ｄのずれ変位、相互離間を防止できる。
【００３６】
▲５▼２行２列等の２行複数列をなす複数の建物ユニット１０Ａ〜１０Ｄからなるユニット建物１において、上述▲１▼〜▲４▼を実現し、上階建物ユニットの床パネル２０Ａ〜２０Ｄを支持する小壁（耐力壁）等を下階建物ユニットに設ける必要がなく、下階のプランの自由度を高めることができ、下階に大きく連続する居室空間を形成できる。
【００３７】
▲６▼梁３０は逆Ｔ字型の断面をなし、ウエブ３２を相並ぶ床パネル２０Ａと床パネル２０Ｃ、床パネル２０Ｂと床パネル２０Ｄの間に納め、張り渡し面材２６に干渉しない。また、梁３０が下階の天井下に突き出ることもなく、下階の開放感を損なわない。
【００３８】
以上、本発明の実施の形態を図面により詳述したが、本発明の具体的な構成はこの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。例えば、本発明の床パネルの接合構造はユニット建物に限らず、広く一般の建物に適用できる。
【００３９】
【発明の効果】
本発明によれば、下階の相対する壁パネル間に掛け渡した梁の上に上階の床パネルを支持するに際し、下階のプランの自由度を高めることができる。
【図面の簡単な説明】
【図１】図１はユニット建物を構成する４個の建物ユニットの配置を示す斜視図である。
【図２】図２はユニット建物における梁の掛け渡し状態を示し、（Ａ）は全体斜視図、（Ｂ）は梁の斜視図である。
【図３】図３はユニット建物における床パネルの載置状態を示す斜視図である。
【図４】図４はユニット建物における面材の張り渡し状態を示す斜視図である。
【図５】図５は相隣る床パネルの接合過程を示す断面図である。
【図６】図６は相隣る床パネルの接合構造を示す断面図である。
【符号の説明】
１ユニット建物
１０Ａ〜１０Ｄ建物ユニット
１１床パネル
１２壁パネル
１３居室空間
２０Ａ〜２０Ｄ床パネル
２６張り渡し面材
３０梁
３１フランジ
３２ウエブ
４２止め具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit building .
[0002]
[Prior art]
As described in Patent Document 1, four lower floor building units of 2 rows and 2 columns are juxtaposed to form a building unit group, and wall panels are erected at both end positions in the row direction of the building unit group. In some cases, a beam is spanned between the rows and between the rows, and the floor panel of a plurality of upper floor building units is supported by this beam.
[0003]
[Patent Document 1]
JP-A-8-311999 ([0026], FIG. 10 (b))
[0004]
[Problems to be solved by the invention]
In the unit building of Patent Document 1, although the vertical load of the upper floor building unit can be borne by the beam, the horizontal load acting along the longitudinal direction of the beam on the upper floor building unit is transmitted to the lower floor via the upper floor panel. This is borne by the wall panels standing at both ends of the building unit group in the row direction.
[0005]
However, it is difficult to sufficiently bear the horizontal load only by the wall panels standing at both ends in the row direction of the building unit group on the lower floor, and the floor panel on the upper floor is along the longitudinal direction of the beam. The two floor panels adjacent to each other on both sides of the beam may be separated from each other. Therefore, in Patent Document 1, a small wall (bearing wall) is erected on a part of the side part of each building unit that faces each other between the two rows of building unit groups on the lower floor. One end is extended over this small wall, and the end of the floor panel on the upper floor is supported by the beam and the small wall. Although this can prevent displacement displacement due to the horizontal load of the floor panel on the upper floor, the existence of a small wall restricts the plan on the lower floor, and it is possible to form a large continuous room space on the lower floor. It becomes an obstacle.
[0006]
An object of the present invention is to increase the degree of freedom of the plan of the lower floor when supporting the floor panel of the upper floor on the beam spanned between the opposite wall panels of the lower floor.
[0007]
[Means for Solving the Problems]
The invention of claim 1 has four lower-floor building units composed of wooden wall-type units in which wall panels are erected on the side of the floor panel as a lower-floor building unit group juxtaposed in two rows and two columns. In each row of the building unit group, wall panels are erected at both end positions of the adjacent row of the building unit, and a T-shaped beam is bridged between the wall panels and along the rows. Each of the two end portions of the two flanges of the T-shaped cross-section beam in the longitudinal direction is embedded in the concave portion of the upper surface of the wall panel of the adjacent building unit across the row of the building unit group. Place the adjacent upper floor panels in two rows on the upper surface of each of the two flanges of the beam at the same level as the upper surface of the wall panel, and place the web of the beam within the thickness range of the upper floor panel, Prevents displacement of 4 lower building units and 4 upper floor panels Is a unit building to allow.
[0008]
According to a second aspect of the present invention, in the first aspect of the present invention, the end of each floor panel is joined to each flange by a stopper penetrating from below the flange .
[0009]
According to a third aspect of the present invention, in the first or second aspect of the present invention, a face material is stretched between upper portions of adjacent floor panels with the beam web interposed therebetween.
[0010]
The invention of claim 4 is the invention according to any one of claims 1 to 3, wherein the distance between the stoppers along the longitudinal direction of the beam is set to 300 mm or less.
[0013]
[Action]
The invention of claim 1 has the following effect (a) .
(a) There is no need to provide a small wall (bearing wall) to support the floor panel of the upper floor building unit in the lower floor building unit, and the degree of freedom of the lower floor plan can be increased, and it continues greatly to the lower floor. A living room space can be formed.
The invention according to claim 2 has the following actions (b) and (c) .
(b) Since the end of the adjacent floor panel on the upper floor is joined to each of the two flanges of the beam by a stopper, the horizontal load acting on the floor panel along the longitudinal direction of the beam is passed through the stopper. It is borne by the beam. Accordingly, it is possible to prevent the displacement of the floor panel along the longitudinal direction of the beam, and hence the separation between two adjacent floor panels on both sides of the beam. There is no need to provide a small wall (bearing wall) or the like to which the floor panel is joined to prevent the displacement of the floor panel on the upper floor on the lower floor, and the degree of freedom of the plan on the lower floor can be increased.
[0014]
(c) Since the plurality of floor panels arranged in the longitudinal direction of the beam are joined to each of the two flanges of the beam, it is possible to prevent the displacement of the plurality of arranged floor panels along the longitudinal direction of the beam in (b) above.
[0015]
The invention according to claim 3 has the following action (d) .
(d) By providing the floor panels adjacent to each other across the web of the beams, the floor panels can be prevented from being displaced and separated from each other.
[0016]
The invention according to claim 4 has the following effect (e) .
(e) By providing stoppers that join the end of the floor panel to the flange of the beam at a small interval of 300 mm or less, the floor panel is firmly joined to the flange of the beam to prevent the displacement and mutual separation of the floor panel. it can.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an arrangement of four building units constituting a unit building, FIG. 2 is a cross-sectional view of a beam in a unit building, (A) is an overall perspective view, and (B) is a perspective view of a beam. FIG. 3 is a perspective view showing a state in which floor panels are placed in a unit building, FIG. 4 is a perspective view showing a state in which face materials are stretched in a unit building, and FIG. 5 is a sectional view showing a joining process of adjacent floor panels. FIG. 6 is a cross-sectional view showing the joining structure of adjacent floor panels.
[0020]
The unit building 1 is constructed by juxtaposing a plurality of building units in a horizontal plane and mounting an upper floor building unit on a lower floor building unit. The unit building 1 according to the present embodiment includes at least a part of four building units 10A having two rows and two columns (two rows and many columns such as two rows and three columns are possible) as shown in FIGS. 10D are juxtaposed, and floor panels 20A to 20D constituting the building units on the upper floor are mounted on the building units 10A to 10D on the lower floor.
[0021]
The building units 10A to 10D are wood wall type units, and are configured such that a wall panel 12 is erected on a side portion of a rectangular floor panel 11 as shown in FIG.
[0022]
As shown in FIGS. 3 and 5, the floor panels 20 A to 20 D have a lower frame on an outer peripheral lower surface of a floor frame assembly including a side joist 21, an end joist 22, and a face material receiving material 23 (built between the side joists 21). The material 24 is attached, and the face material 25 is attached to the upper surface of the floor frame assembly.
[0023]
The unit building 1 includes the following structure that is constructed by the following construction procedure in order to form a large continuous room space by the building units 10A to 10D on the lower floor.
[0024]
(1) Four building units 10A to 10D having two rows and two columns are juxtaposed on the foundation. The building unit 10A is arranged in the first row and the first column, the building unit 10B is arranged in the first row and the second column, the building unit 10C is arranged in the second row and the first column, and the building unit 10D is arranged in the second row and the second column. (FIG. 1).
[0025]
The building units 10 A to 10 D have a wall panel 12 erected on two side portions that intersect each other among the four side portions of the square floor panel 11, and the wall panel 12 on the other two side portions. Is not set up. Then, the rows of the adjacent building units 10A to 10D (between the building unit 10A and the building unit 10C, between the building unit 10B and the building unit 10D), and between the rows (between the building unit 10A and the building unit 10B, the building unit 10C). The wall panel 12 is not erected on the side portion facing between the building unit 10D). Thereby, the building units 10A to 10D form a large and continuous room space 13 that is not partitioned by the wall panel 12 from each other.
[0026]
(2) A group of building units in each of the first row and the second row, in other words, a building unit group in the first row (building unit 10A and building unit 10B) and a building unit group in the second row (building unit) 10C and building unit 10D). Then, as described above, the wall panel 12 is erected at the both end positions in the row direction of the building unit group in the first row, in this embodiment, on the outer side portions in the row direction of the building unit 10A and the building unit 10B. Further, as described above, the wall panel 12 is erected at both end positions in the row direction of the building unit group in the second row, in this embodiment, on the outer side portions in the row direction of the building units 10C and 10D.
[0027]
(3) Crossing the wall panels 12 erected at both ends in the row direction of the building unit group in (2) above, and between the rows of the building unit group of two rows, in other words, the building unit group of the first row ( A beam 30 having an inverted T-shaped cross section is bridged between the rows of the building unit 10A and the building unit 10B) and the second row of building unit groups (the building unit 10C and the building unit 10D) (FIG. 2). The beam 30 has an inverted T-shaped cross section composed of a web 32 and two flanges 31 and 31 symmetrical with respect to the web 32.
[0028]
The wall panels 12 of the building units 10 A to 10 D include a recess 12 A for embedding the beam 30 and setting the upper surface of the flange 31 of the beam 30 to be flush with the upper surface of the wall panel 12. Both ends of the two flanges 31 of the beam 30 are made of nails or screws on the wall panel 12 (recess 12A) of the building unit 10A and the building unit 10C, and the wall panel 12 (recess 12A) of the building unit 10B and the building unit 10D, respectively. Joined by the stopper 41. The flange 31 of the beam 30 is provided with a nail hole for the stopper 41 in advance.
[0029]
(4) On the two flanges 31 on both sides of the web 32 in the beam 30, on the floor panel of each building unit (not shown) on the adjacent upper floor in two rows, in other words, 2 in the first column The floor panels 20A and 20C forming rows, and the base ends of the floor panels 20B and 20D forming two rows in the second column are placed (FIG. 3). The floor panel 20A and the floor panel 20B, and the floor panel 20C and the floor panel 20D arranged in the longitudinal direction of the beam 30 are joined to the two flanges 31 of the beam 30, respectively. In addition, in each floor panel 20A-20D, the edge part which opposes the edge part mounted on the beam 30, and one side part (outside side part) which cross | intersects this are the building units 10A-10D of a corresponding lower floor. It is joined to the upper surface of the wall panel 12.
[0030]
The ends of the floor panels 20A to 20D that are mounted on the flange 31 are joined to the flange 31 by a stopper 42 such as a nail or a screw that penetrates from below the two flanges 31 of the beam 30 (FIG. 5). The lower frame member 24 of the floor panels 20 A to 20 D is joined to the flange 31. The flange 31 of the beam 30 is provided with a nail hole for the stopper 42 in advance.
The driving interval of the stopper 42 along the longitudinal direction of the beam 30 is set to 300 mm or less.
[0031]
(5) The face material 26 is stretched between the adjacent upper portions of the floor panels 20A and 20C and the floor panels 20B and 20D with the web 32 of the beam 30 interposed therebetween (FIGS. 4 to 6). . The stretchable face material 26 is fixed to the face material receiving material 23 of the adjacent floor panels 20A to 20D by a nail 27, and is continuous with the face material 25 (FIG. 6).
[0032]
According to this embodiment, there are the following operations.
(1) Since the end portions of the adjacent floor panels 20A to 20D on the upper floor are joined to the two flanges 31 of the beam 30 by the stoppers 42, the floor panels 20A to 20D extend along the longitudinal direction of the beam 30. The acting horizontal load is borne by the beam 30 via the stopper 42. Accordingly, it is possible to prevent the displacement of the floor panels 20A to 20D along the longitudinal direction of the beam 30, and thus the two floor panels 20A to 20D adjacent to each other on both sides of the beam 30 from being separated from each other. It is not necessary to provide a small wall (bearing wall) or the like to which the floor panels 20A to 20D are joined to prevent the displacement of the floor panels 20A to 20D on the upper floor on the lower floor. Can be increased.
[0033]
(2) A plurality of floor panels 20A to 20D arranged side by side by joining the floor panel 20A and the floor panel 20B aligned in the longitudinal direction of the beam 30 to the two flanges 31 of the beam 30 by joining the floor panel 20C and the floor panel 20D. It is possible to prevent displacement displacement along the longitudinal direction of the beam 30 of the above-mentioned (1).
[0034]
(3) Preventing the displacement and mutual separation of the floor panels 20A to 20D by providing the covering material 26 on the floor panels 20A and 20C and the floor panels 20B and 20D adjacent to each other with the web 32 of the beam 30 interposed therebetween. it can.
[0035]
(4) The floor panels 20A to 20D are firmly joined to the flange 31 of the beam 30 by providing the stoppers 42 for joining the ends of the floor panels 20A to 20D to the flange 31 of the beam 30 at a small interval of 300 mm or less. Further, it is possible to prevent displacement and mutual separation of the floor panels 20A to 20D.
[0036]
(5) In the unit building 1 composed of a plurality of building units 10A to 10D having two rows and two columns, such as two rows and two columns, the above-mentioned items (1) to (4) are realized, and the floor panel 20A of the upper building unit There is no need to provide a small wall (bearing wall) or the like for supporting 20D in the lower floor building unit, the degree of freedom in the plan for the lower floor can be increased, and a large continuous room space can be formed on the lower floor.
[0037]
(6) The beam 30 has an inverted T-shaped cross section, and the web 32 is placed between the floor panel 20A and the floor panel 20C, and the floor panel 20B and the floor panel 20D. Moreover, the beam 30 does not protrude below the ceiling of the lower floor, and the feeling of opening of the lower floor is not impaired.
[0038]
Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention. For example, the joint structure of floor panels of the present invention is not limited to unit buildings and can be widely applied to general buildings.
[0039]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, when supporting the floor panel of an upper floor on the beam spanned between the wall panels which a lower floor opposes, the freedom degree of the plan of a lower floor can be raised.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an arrangement of four building units constituting a unit building.
FIGS. 2A and 2B show a beam crossing state in a unit building, where FIG. 2A is an overall perspective view, and FIG. 2B is a perspective view of the beam.
FIG. 3 is a perspective view showing a mounting state of a floor panel in a unit building.
FIG. 4 is a perspective view showing a state in which face materials are stretched in a unit building.
FIG. 5 is a cross-sectional view showing a process of joining adjacent floor panels.
FIG. 6 is a cross-sectional view showing a joining structure of adjacent floor panels.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Unit building 10A-10D Building unit 11 Floor panel 12 Wall panel 13 Living room space 20A-20D Floor panel 26 Overlaying surface material 30 Beam 31 Flange 32 Web 42 Stopper

Claims

It has four lower-floor building units consisting of wooden wall-type units with wall panels erected on the side of the floor panel as a lower-floor building unit group juxtaposed in two rows and two columns,
In each row of the building unit group, a wall panel is erected at both end positions of the adjacent row of the building unit, and a T-shaped beam is bridged between the wall panels and along the row.
Each of the two longitudinal ends of the two flanges of the T-shaped cross section beam is embedded in the upper surface recess of the wall panel of the building unit adjacent to each other across the row of the building unit group,
The upper floor panels adjacent to each other in two rows on the upper surface of each of the two flanges of the T-shaped cross-section beam are placed on the same level as the upper surface of the wall panel, and the web of the beam is placed on the thickness of the upper floor panel. A unit building that fits within the range of 4 and can prevent displacement of the 4 lower floor building units and 4 upper floor panels .

The unit building according to claim 1, wherein an end portion of each floor panel is joined to each flange by a stopper penetrating from below the flange .

The unit building according to claim 1 or 2, wherein a face material is stretched between upper portions of floor panels adjacent to each other across the web of beams.

The interval between the stoppers along the longitudinal direction of the beam is 300 mm or less.
The unit building according to any one of 3 above.