JP4044858B2

JP4044858B2 - Seismic isolation building

Info

Publication number: JP4044858B2
Application number: JP2003067052A
Authority: JP
Inventors: 文香青木
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2003-03-12
Filing date: 2003-03-12
Publication date: 2008-02-06
Anticipated expiration: 2023-03-12
Also published as: JP2004278011A

Description

【０００１】
【発明の属する技術分野】
この発明は免震建物に関する。
【０００２】
【従来の技術】
免震建物は、通常、地面に固定された下部構造体の上に免震装置を介して上部構造体が設置されたものである。
ここで使用される免震装置は、スプリングバネやゴム等の弾性体や、弾性体と粘稠な液体を組み合わせたダンパーや、平行な板体の間に設けた球状体からなるもの等であって、地震が発生して下部構造体が地面と共に水平方向に振動すると、スプリングバネやゴムの弾性体が変形したり、ダンパーの弾性体と粘稠な液体の振動サイクルの差によって制振したり、球状体が下部構造体の上を転がる等して、この地震の振動を吸収し、上部構造体を振動し難くするものである。この際、下部構造体と上部構造体が相対的に移動する。
【０００３】
このように下部構造体と上部構造体が相対的に移動する構造になっているので、下部構造体と上部構造体とが分離していて、必ず、下部構造体と上部構造体の間に隙間が存在する。
そして、この下部構造体と上部構造体の間に存在する隙間が見えると、この隙間を通して内部の免震装置が外側から見えて見苦しいし、この隙間に雨や土や砂等が侵入し、免震装置が十分に稼働しない危険性がある。
【０００４】
かかる問題を解決した免震建物としては種々ある。例えば、特許文献１〜特許文献７に記載されている建物が知られている。
先ず、特許文献１と特許文献２に記載されている免震建物を、図７を参照しながら説明すると、免震建物１０５は、地面１０１に固定されている下部構造体としての基礎１００の上に、免震装置１０２を介して、架台１０３に支持された上部構造体としての建物本体１０４が設置され、下部構造体（基礎）１００と上部構造体（建物本体）１０４の間の隙間を覆う側板（化粧板、カバー）１０６が架台１０３の側部に軸部１０６ａを回動中心として揺動可能に設けられている建物である。
【０００５】
この免震建物１０５では、図７（イ）に示すように、平常時は、基礎（下部構造体）１００と建物本体（上部構造体）１０４の間に存在する隙間及び免震装置１０２がこの側板１０６によって覆われて、下部構造体１００と上部構造体１０４の間に存在する隙間が見え難くいし、隙間に雨や土や砂等が侵入し難くなっている。
【０００６】
そして、地震が発生し、基礎（下部構造体）１００と建物本体（上部構造体）１０４の相対位置が移動すると、図７（ロ）に示すように、側板１０６が軸部１０６ａを回動中心にして、下部構造体１００と上部構造体１０４の相対位置の移動に応じて揺動して、側板１０６が破損しないようになっている。
【０００７】
また、特許文献３に記載されている免震建物は地面より低い位置に下部構造体である基礎を設け、この基礎の上に免震装置を介して上部構造体である建物本体が据え付けられた建物であって、この建物本体と周囲の地面との間に溝が形成されていている。そして、建物本体の下部外周面には溝蓋本体が、溝の上方を覆い、更に、延長されて地面の上方に大きく突出する状態に取り付けられ、溝の内周面には補助溝蓋が、溝蓋本体の下方位置に、溝の中央部まで突出した状態に回動自在に取り付けられていて、建物本体が近づくと、補助溝蓋に取り付けられているスプリングバネの作用で補助溝蓋が下方に回動するようになっている。この溝蓋本体と補助溝蓋とで溝の内部に存在する免震装置等が見え難くなっている。
【０００８】
地震が発生して基礎と建物本体の相対的位置が変化すると、溝蓋本体が地面の上方を略水平に移動する。そして、建物本体が境界を越えるように大きく振動しても、補助溝蓋が下方に回動して、建物本体に衝突しないようになっている。
【０００９】
また、特許文献４と特許文献５に記載されている免震建物では、上部構造体には、外側方向に突出したはね出し板を設け、玄関ステップの上を滑る支持機構でこのはね出し板の先端部を支持するようにしたものであって、このはね出し板で基礎と免震装置等が見えなくなっている。そして、地震が発生して上部構造体と地面に固定されている下部構造体との間の相対的位置が変化すると、上部構造体に取り付けられているはね出し板が地面に固定されている玄関ステップの上を滑るようになっている。
【００１０】
また、特許文献６に記載されている免震建物では、下部構造体の上に免震装置を介して上部構造体が設置された免震建物であって、上部構造体の下部に略水平に外側方向に突出した犬走りを設け、この犬走りの先端部に対応する地面に化粧壁を立設し、この犬走りと化粧壁とで免震装置等が見え難くなっている。
【００１１】
また、特許文献７に記載されている免震建物では上部構造体には、周囲に下方に突出した上側化粧体が設けられ、下部構造体には、上側化粧体と対峙する位置に下側化粧体が設けられていて、この上側化粧体と下側化粧体とで床下空間を隠すようになっている。
【００１２】
【特許文献１】
特開２０００−２３４３９４号公報
【特許文献２】
特開２００１−２６２８６４号公報
【特許文献３】
特開２０００−１２０１８７号公報
【特許文献４】
特開２０００−３５２２２１号公報
【特許文献５】
特開２００１−７３４７３号公報
【特許文献６】
特開２０００−３２０１８４号公報
【特許文献７】
特開２００１−１８２３６６号公報
【００１３】
【発明が解決しようとする課題】
しかし、上記特許文献１〜７に記載されている免震建物に使用される上部構造体と下部構造体の間の隙間を覆う部材、（特許文献１及び２に記載されている側板、特許文献３に記載されている溝蓋本体、特許文献４及び特許文献５に記載されているはね出し板、特許文献６に記載されている犬走りと化粧壁、特許文献７に記載されている上側化粧体と下側化粧体）は、すべて露出している。
このように上部構造体と下部構造体の間の隙間を覆う部材が露出していると、劣化し易いために、外観品質と高い耐久性を要求され、コストの高い部材となってしまう。
【００１４】
また、特許文献１及び２に記載されている免震建物では、上部構造体に対して側板を揺動可能に取り付ける必要があるので、複雑な構造になりコストが上昇する。又、側板を揺動可能に取り付けると、通常の自然風でも側板が揺動してバタツキ音が発生する。これを防止しようと、この揺動を抑制するダンパー機構を設けと、構造が複雑になり製造コストが上昇するという問題がある。又、子供や犬、猫等が側板を開いていたずらをする恐れや風で側板が開いたときに上部構造体と下部構造体の間の隙間から異物が侵入する恐れがあり免震装置の動作に影響を及ぼす可能性がある。
【００１５】
また、特許文献７を除いて上部構造体と下部構造体の間を覆うすべての部材は、建物本体の下端から外側方向に突出しているために、この突出分を考慮して建物の配置を計画する必要があり、敷地利用への影響が大きい。
そこで、この発明の目的は、上部構造体と下部構造体の間を覆う部材が、露出したり、外側方向に大きく突出しない状態に取り付けられた免震建物を提供することである。
【００１６】
【課題を解決するための手段】
本発明は、上記課題を解決するためになされたものであって、請求項１に記載の発明は、地面に固定された下部構造体の上に免震装置を介して上部構造体が設置された免震建物であって、前記下部構造体には、前記上部構造体の外周部分に対応する下方位置に立上部材が設けられ、この立上部材の上端部には、上部構造体の下方に内側方向に略水平に突出した板体部材が設けられ、この板体部材と上部構造体の間の隙間が小さくなされているものである。
【００１７】
この請求項１記載の立上部材は、建物本体の周囲に建物本体と地面との間に設けられるものであって、壁であってもよいし、基礎であってもよい。一般に、建物の周囲には、通常、基礎があるので、この基礎を利用することが好ましい。そして、基礎の場合には、請求項２記載のように基礎の上に連結板を取り付けると、基礎と建物本体との間に連結板の高さと略等しい空間が形成され、この空間に免震装置を設けることができるので好ましい。
【００１８】
即ち、請求項２記載の発明は、請求項１記載の発明に係り、前記立上部材は、前記板体部材と、基礎と、この基礎と板体部材とを連結する連結板とからなるものである。
【００１９】
この請求項２記載の基礎は、適宜でよいが、通常、コンクリート製である。又、板体部材と連結板も適宜でよいが、金属製が好ましい。そして、この板体部材と連結部材は一体になっていてもよいし、連結されたものであってもよい。
【００２０】
請求項３記載の発明は、請求項１記載の発明に係り、前記上部構造体には、上部構造体の下部外側面から板体部材の上端より若干高い位置までを覆う上側防水化粧部材が設けられ、前記下部構造体には、立上部材の上端と略等しい高さより下の立上部材の外側面を覆う下側防水化粧部材が設けられ、この下側防水化粧部材の上端と上側防水化粧部材の下端が対峙する状態に下側防水化粧部材と上側防水化粧部材が配置されているものである。
【００２１】
請求項４記載の発明は、請求項３記載の発明に係り、前記上側防水化粧部材が上部構造体に着脱自在に取り付けられ、前記下部防水化粧部材と板体部材がそれぞれ別個に立上部材に着脱自在に取り付けられているものである。
【００２２】
（作用）
請求項１記載の発明では、地面に固定された下部構造体の上に免震装置を介して上部構造体が設置された免震建物であって、前記下部構造体には、前記上部構造体の外周部分に対応する下方位置に立上部材が設けられ、この立上部材の上端部には、上部構造体の下に内側方向に略水平に突出した板体部材が設けられ、この板体部材と上部構造体の間の隙間が小さくなされているので、上部構造体と下部構造体に設けられている板体部材との間に存在する隙間は、小さく、しかも、内側方向に略水平に長く、この隙間から内部の免震装置が見え難いし、雨、土、砂等が侵入し難い。
【００２３】
そして、この板体部材は、立上部材から上部構造体の内側方向に略水平に突出していて、外側に顕れないので、劣化し難い。従って、この板体部材を安価な材料で製造することができる。
また、揺動可能に取り付けた側板がないので、側板のバタツキ音が発生しないし、子供や犬、猫が側板を開く恐れがない。
【００２４】
請求項２記載の発明では、請求項１記載の発明に係り、前記立上部材は、前記板体部材と、基礎と、この基礎と板体部材とを連結する連結板とからなるので、基礎と上部構造体の間には連結板の高さに略等しい空間が形成され、この空間と略等しい高さの免震装置を基礎に設けることができ、便利である。又、板体部材と連結板とを連結する構造であると、基礎に予め連結板を取り付け、この連結板に板体部材を連結すればよく、板体部材を直接コンクリート等の基礎に取り付けるより、基礎に取り付け易くなる。
【００２５】
請求項３記載の発明では、請求項１記載の発明に係り、前記上部構造体には、上部構造体の下部外側面から板体部材の上端より若干高い位置までを覆う上側防水化粧部材が設けられ、前記下部構造体には、立上部材の上端と略等しい高さより下の立上部材の外側面を覆う下側防水化粧部材が設けられ、この下側防水化粧部材の上端と上側防水化粧部材の下端が対峙する状態に下側防水化粧部材と上側防水化粧部材が配置されているので、上側防水化粧部材と下側防水化粧部材で覆われている下部構造体と上部構造体と間に存在する隙間と板体部材が見え難い。
【００２６】
従って、この隙間の内側にある免震装置が更に見難いし、この部分から雨や土や砂等が更に侵入し難く、この隙間の内側に直射日光が入らなくなり、内部に存在する板体部材等が更に劣化し難くなる。又、この上側防水化粧部材と下側防水化粧部材を防水性と意匠性に優れたものにすることにより、この隙間部分が美麗になるし、内側に雨水が侵入し難い。
【００２７】
また、上側防水化粧部材は板体部材の上端より若干高い位置までを覆っているだけであるので、大きな地震が発生して、上部構造体が基礎の内側方向に大きく移動し、上側防水化粧部材が屋内側にある立上部材を越えることがあっても、立上部材の上端より高い上側防水化粧部材は、立上部材に衝突しない。
【００２８】
また、下側防水化粧部材は立上部材の上端と略等しい高さより下の立上部材の外側面を覆っているだけであるので、大きな地震が発生して、上部構造体が基礎の外側方向に大きく移動し、その結果、下側防水化粧部材が上部構造体の内側に移動しても、下側防水化粧部材は、立上部材の上端と略等しい高さより下の立上部材の外側面を覆っているだけで、立上部材より低く、従って、立上部材より高い上部構造体が下側防水化粧部材に衝突しない。
【００２９】
請求項４記載の発明では、上側防水化粧部材が上部構造体に着脱自在に取り付けられ、前記下側防水化粧部材と板体部材がそれぞれ別個に立上部材に着脱自在に取り付けられているので、長期間使用し、上側防水化粧部材、下側防水化粧部材、板体部材が劣化しても、劣化した部材のみを取り外して簡単に取り替えることができる。
【００３０】
【発明の実施の形態】
以下、本発明の実施の形態を実施例で説明する。
（実施例）
図１〜図６は本発明をユニット建物に適用した一実施例を示すもので、図１は、ユニット建物である免震建物を示す斜視図、図２は、免震建物の下部構造体と上部構造体の連結部分を示す断面図、図３は、地震時に図２に示す免震建物の建物本体が基礎の内側方向に大きく移動した状態を示す断面図、図４は、免震建物の免震装置が取り付けられている部分を示す断面図、図５は、図２に示す免震建物を判り易く説明するために主要部のみを示すもので、（イ）は通常の状態を示す模式図、（ロ）は建物本体が基礎の内側に大きく移動したときの状態を示す模式図、（ハ）は建物本体が基礎の外側に大きく移動したときの状態を示す模式図、図６は、建物ユニットを示す一部切欠斜視図である。
【００３１】
図１〜図６において、Ｈはユニット建物である免震建物であり、この免震建物Ｈは図１〜図５に示すように、地面に固定されている下部構造体２の上に免震装置３を介して上部構造体４が設置されたものである。
下部構造体２は、地面に固定されている基礎５、束及び基礎５や束に付属しているもの等のように地面に固定されるものをいう。
【００３２】
基礎５は図２及び図３に示すように、プレキャストコンクリート製であり、地面１に据え付けられている。
なお、この基礎５は後述の建物ユニット８を架け渡して据えつけることができるように、建物ユニット８の両側の下方位置に設けられてる。従って、複数個の建物ユニット８が据え付けられた上部構造体４の外周部分だけでなく、中央部分にも基礎５が存在する。
【００３３】
そして、上部構造材の外周部分に対応する下方位置には、図２及び図３に示すように、基礎５と、連結板６と、板体部材７とからなる立上部材Ａが設けられている。即ち、基礎の５の上には連結板６が設けられ、この連結板６の先端には板体部材７が設けられている。
【００３４】
連結板６は、厚み２．３ｍｍの合金（ＺＡＭ）製の板２枚をＬ字形に成形したものであって、このＬ字形の一方の片６１をビス６５で基礎５の屋内側面に取り付けられていて、このビス６５を螺出することにより連結板６を取り外すことができるようになっている。即ち、着脱自在になっている。
【００３５】
なお、この連結板６の他方の片６２の上端には板体部材７を取り付けるためのＬ字形の取付金具６３が溶接で取り付けられているし、基礎５とＬ字形の一方の片６１との隙間から雨水が侵入しないように、コールタール等の液状の防水剤を含ませたウレタン樹脂シート６９が基礎５と一方の片６１のコーナーに貼り付けられている。
【００３６】
板体部材７は、厚み２．３ｍｍのＺＡＭ製の板であって、連結板６の他方の片に溶接されているＬ字形の取付金具６３にビス７５で取り付けられていて、このビス７５を螺出することにより板体部材７を取り外すことができるようになっている。即ち、着脱自在になっている。
そして、この板体部材７は外側縁が基礎５の上面の略中心線から内側方向に長く突出した状態に取り付けられている。従って、後述するように、上方に上部構造体４を据え付けると、この板体部材７は上部構造体４の下方に位置し、内側方向に大きく突出している。そして、この上部構造体４と板体部材７との間には、極めて小さいスリット状の略水平な隙間Ｓが形成される。
【００３７】
この基礎５の屋外側上面にアルミニウム製の下側防水化粧部材５５が取り付けられている。
この下側防水化粧部材５５の上端は板体部材７の上端と略同じ高さになっていて、この下側防水化粧部材５５が板体部材７と基礎５の上端部とを覆った状態になっている。
【００３８】
免震装置３は、球状体を有する免震装置３１と図示しないオイルダンパーの２種類が使用されている。球状体を有する免震装置３１は、図４に示すように、上板３２と下板３３との間に設けられた球体３４とからなる。そして、上板３２と下板３３の対面は略中央が外側に窪んだ球面となっていて、通常は、この窪んだ球面の略中央に球体３３が位置していて、地震が発生して上板３２や下板３３に略水平に移動する力が加わると、球体３４が回転して上板３２と下板３３が相対的位置が略水平方向にに移動する構造になっている。
【００３９】
そして、後述の建物ユニット８が架け渡されて据え付けられる基礎５の上に固定台３５が架け渡されて取り付けられ、この固定台３５の上に球状体を有する複数個の免震装置３１が据え付けられている。
なお、図示しないオイルダンパーの免震装置も固定台３５の上に設けられている。この複数個の球状体を有する免震装置３１とオイルダンパーは、この上方に据えつけられる建物ユニット８の下方に略均等に配置される。
【００４０】
この免震装置８は、地震が発生すると、上板３２の上方の上部構造体４と下板３３の下方の下部構造体２との相対的位置が変化するが、地震が終了すると、免震装置３（図示しないオイルダンパーと球状体を有する免震装置３１）の作用で、元の状態に戻るようになっている。
上部構造体４は、架台４１と、この架台４１の上に据え付けられた１階の９個の建物ユニット８と、この９個の建物ユニット１の上に据え付けられた２階の９個の建物ユニット８と、この２階の建物ユニット１の上に取り付けられた屋根パネル９９とからなる。
【００４１】
この際使用される建物ユニット８は、図６に示すように、矩形状の四隅に立設した４本の鋼製四角筒状体の柱８１と、この４本の柱８１の下端部を矩形状の辺に沿って連結した４本の鋼製断面コ字形長尺体の床梁８２と、この４本の柱８１の上端部を矩形状の辺に沿って連結した４本の鋼製断面コ字形長尺体の天井梁８３からなる骨格を有する。
【００４２】
そして、建物ユニット８は、この骨格の相対する床梁８２に鋼製四角筒状体の床小梁８４が差し渡され、この床小梁８４の上に木製の床根太８５が取り付けられ、この床根太８５の上にパーチクルボードの床面材８６が取り付けられて床が形成され、骨格の相対する天井梁８３に木製の天井野縁８７が差し渡され取り付けられ、この天井野縁８７の下面に石膏ボードの天井面材８８が取り付けられて天井が形成されたものである。
【００４３】
また、外壁を設ける場所には床梁８２と天井梁８３との間に間柱８９が差し渡され、この間柱８９に、図２及び図３に一部が示されている外壁パネル９と図示しない内壁パネルが取り付けられ、この外壁パネル９と内壁パネルとの間に図示しないグラスウールの断熱材が取り付けられて外壁が形成されている。
【００４４】
外壁パネル９は矩形状の厚み略１２ｍｍの硬質木片セメント板の外壁面材９１と、この外壁面材９１の周囲に設けられた鋼製四角筒状体を矩形状に組み立てた枠９２と、この枠両側の枠９２に差し渡された図示しない鋼製四角筒状体の桟９３とからなる。
そして、複数個の免震装置３の上にそれぞれ免震装置固定部材３６が取り付けられ、この複数個の免震装置固定部材３６と図示しないオイルダンパーの上に架台４１が架け渡されて据え付けられ、この架台４１の上に工場で製造した建物ユニット８が据え付けられている。
【００４５】
上部構造体２の外周部分の下方に顕れている架台４１の側面には、屋外側上部にアルミニウム製の上側防水化粧部材４５が取り付けられている。
この上側防水化粧部材４５の上端は、固定材３９の上端と略同じ高さで、下端が下部構造体２の上端より若干上方の高さとなっている。
そして、この上側防水化粧部材４５の下端と下側防水化粧部材５５と上端とは対峙するように上側防水化粧部剤４５と下側防水化粧部剤５５が配置されている。
【００４６】
この上側防水化粧部材４５と下側防水化粧部材５５はアルミニウム製で意匠性と防水性に優れたものである。
屋根パネル９９は従来の折版屋根パネルと略同じであるので、説明を省略する。
【００４７】
次に、この免震建物Ｈの施工方法及び作用について説明する。
工場で建物ユニット８、屋根パネル９９、免震装置３等を製造し、施工現場にこれ等を運搬する。
施工現場では、予め地面１に基礎５を設けおく。そして、上部構造体４の外周部分の下方の基礎５には連結板６を取り付け、この連結板６の上端に板体部材７を取り付けて立上部材Ａを設けたり、基礎５に下側防水化粧部材５５を取り付ける。
【００４８】
また、建物ユニット８を架け渡して取り付ける予定の基礎５の上に固定台３４を架け渡して取り付け、この固定台３４の上に球状体を有する免震装置３１や図示しないオイルダンパー等の免震装置３を据え付け、この免震装置３とオイルダンパーをビス３８で固定する。
次に、この球状体を有する免震装置３１の上に免震装置固定部材３６を取り付け、ビス３９で固定して、このオイルダンパーと免震装置固定部材３６の上面を略同じにする。
【００４９】
この免震固定部材３６とオイルダンパーの上に架台４１を取り付け、ボルト・ナット４２で固定する。
そして、この免震装置固定部材３６とオイルダンパーの上に建物ユニット８を据え付け、ボルト４９で固定する。
このようにして、９個の建物ユニット８を据え付けて１階を形成し、この１階の建物ユニット８の上に９個の建物ユニット８を据え付けて２階を形成し、この２階の建物ユニット８の上に屋根パネル９９を取り付けて屋根９９を形成し、架台４１の屋外側上部に上側防水化粧部材４５を取り付ける。最後に、その他の種々な仕上げを行うと、免震建物Ｈが完成する。
【００５０】
このようにして完成した免震建物Ｈは、地面１に固定された下部構造体２の上に免震装置３を介して上部構造体４が設置された建物である。
そして、この免震建物Ｈの下部構造体２には、上部構造体４の外周部分に対応する下方位置に立上部材Ａが設けられ、この立上部材Ａの上端部には、上部構造体４の下に内側方向に略水平に突出した板体部材７が設けられている。
【００５１】
この板体部材７と上部構造体４の間の隙間は小さく、しかも、内側方向に略水平に長くなっていて、この隙間から内部の免震装置が見え難いし、雨、土、砂等が侵入し難くなっているし、この板体部材７は、立上部材Ａから上部構造体４の内側方向に略水平に突出していて、外側に顕れないので、劣化し難く、この板体部材７を安価な材料で製造することができる。
【００５２】
更に、上部構造体４には、上部構造体４の下部外側面から板体部材７の上端より若干高い位置までを覆う上側防水化粧部材４５が設けられ、下部構造体２には、立上部材７の上端と略等しい高さから下の立上部材Ａの外側面を覆う下側防水化粧部材５５が設けられ、この下側防水化粧部材５５の上端と上側防水化粧部材４５の下端が対峙する状態に下側防水化粧部材５５と上側防水化粧部材４５が配置されているので、上側防水部化粧部材３５と下側防水化粧部材５５で覆われている下部構造体２と上部構造体４と間に存在する隙間や板体部材７が見え難い。従って、従って、免震装置が更に見難くなっているし、この部分から雨や土や砂等が更に侵入し難く、この隙間の内側に直射日光が入らなくなり、内部に存在する板体部材等が更に劣化し難くなっている。
【００５３】
また、この上側防水化粧部材４５と下側防水化粧部材５５は防水性と意匠性に優れていて、この隙間部分が美麗になるし、内側に雨水が入り難い。
また、上側防水化粧部材４５は板体部材７の上端より若干高い位置までを覆っているだけであるので、大きな地震が発生して、図５（ロ）に示すように、上部構造体４が基礎５の内側方向に大きく移動し、上側防水化粧部材４５が屋内側にある立上部材Ａを越えることがあっても、立上部材Ａの上端より高い上側防水化粧部材４５は、立上部材Ａに衝突しない。
【００５４】
また、下側防水化粧部材５５は立上部材Ａの上端と略等しい高さより下の立上部材Ａの外側面を覆っているだけであるので、大きな地震が発生して、図５（ハ）に示すように、上部構造体４が基礎の外側方向に大きく移動し、その結果、下側防水化粧部材５５が上部構造体４の内側に移動しても、下側防水化粧部材５５は、立上部材Ａの上端と略等しい高さより下の立上部材Ａの外側面を覆っているだけで、立上部材Ａより低く、従って、立上部材より高い上部構造体５５が下側防水化粧部材５５に衝突しない。
【００５５】
また、上側防水化粧部材４５が上部構造体４に着脱自在に取り付けられ、前記下側防水化粧部材５５と板体部材７がそれぞれ別個に立上部材Ａに着脱自在に取り付けられているので、長期間使用し、上側防水化粧部材４５、下側化粧部材５５、板体部材７が劣化しても、劣化した部材のみを取り外して簡単に取り替えることができる。
【００５６】
また、この立上部材Ａは、板体部材７と、基礎５と、連結板６とからなるので、板体部材７の上に上部構造体４が設けられているので、基礎５と上部構造体４の間には連結板６の高さに略等しい空間が形成され、この空間と略等しい高さの免震装置３を基礎に設けることができ、便利である。又、板体部材７と連結板６がビス７５で連結されているので、予め、連結板６を基礎に取り付けていて、この連結板６に板体部材７を取り付ければよく、板体部材７を基礎５に取り付け易い。
【００５７】
【発明の効果】
以上説明してきたように、請求項１に記載の発明は、地面に固定された下部構造体の上に免震装置を介して上部構造体が設置された免震建物であって、前記下部構造体には、前記上部構造体の外周部分に対応する下方位置に立上部材が設けられ、この立上部材の上端部には、上部構造体の下方に内側方向に略水平に突出した板体部材が設けられ、この板体部材と上部構造体の間の隙間が小さくなされているから、上部構造体と上部構造体の板体部材との間に存在する隙間は、小さく、しかも、内側方向に略水平に長く、この隙間から内部の免震装置が見え難いし、雨、土、砂等が侵入し難い。又、この板体部材は、上部構造体の内側方向に略水平に突出していて、外側に顕れず、劣化し難い。従って、この板体部材を安価な材料で製造することができる。
【００５８】
請求項２記載の発明は、請求項１記載の発明に係り、前記立上部材は、前記板体部材と、基礎と、この基礎と板体部材とを連結する連結板とからなるから、基礎と上部構造体の間には連結板の高さに略等しい空間が形成され、この空間と略等しい高さの免震装置を基礎に設けることができ、便利である。
【００５９】
請求項３記載の発明は、請求項１記載の発明に係り、前記上部構造体には、上部構造体の下部外側面から板体部材の上端より若干高い位置までを覆う上側防水化粧部材が設けられ、前記下部構造体には、立上部材の上端と略等しい高さより下の立上部材の外側面を覆う下側防水化粧部材が設けられ、この下側防水化粧部材の上端と上側防水化粧部材の下端が対峙する状態に下側防水化粧部材と上側防水化粧部材が配置されているから、上側防水化粧部材と下側防水化粧部材で覆われている下部構造体と上部構造体と間に存在する隙間と板体部材が見え難い。従って、この隙間の内側にある免震装置が更に見難いし、この部分から雨や土や砂等が更に侵入し難く、この隙間の内側に直射日光が入らなくなり、内部に存在する板体部材等が更に劣化し難くなる。又、この上側防水化粧部材と下側防水化粧部材を防水性と意匠性に優れたものにすることにより、この隙間部分が美麗になるし、内側に雨水が侵入し難い。
【００６０】
また、上側防水化粧部材は板体部材の上端より若干高い位置までを覆っているだけであり、下側防水化粧部材は立上部材の上端と略等しい高さより下の立上部材の外側面を覆っているだけであるので、大きな地震が発生して、上部構造体が基礎の内側方向や外側方向に大きく移動しても、立上部材の上端より高い上側防水化粧部材は、立上部材に衝突しないし、下側防水化粧部材は、立上部材より低く、立上部材より高い上部構造体が下側防水化粧部材に衝突しない。
【００６１】
請求項４記載の発明は、上側防水化粧部材が上部構造体に着脱自在に取り付けられ、前記下側防水化粧部材と板体部材がそれぞれ別個に立上部材に着脱自在に取り付けられているから、長期間使用し、上側防水化粧部材、下側防水化粧部材、板体部材が劣化しても、劣化した部材のみを取り外して簡単に取り替えることができる。
【図面の簡単な説明】
【図１】本発明をユニット建物に適用した一実施例を示すもので、ユニット建物である免震建物を示す斜視図である。
【図２】免震建物の下部構造体と上部構造体の連結部分を示す断面図である。
【図３】地震時に図２に示す免震建物の建物本体が土台の内側方向に大きく移動した状態を示す断面図である。
【図４】免震建物の免震装置が取り付けられている部分を示す断面図である。
【図５】図２に示す免震建物を判り易く説明するために主要部のみを示すもので、（イ）は通常の状態を示す模式図、（ロ）は建物本体が土台の内側に大きく移動したときの状態を示す模式図、（ハ）は建物本体が土台の外側に大きく移動したときの状態を示す模式図である。
【図６】建物ユニットを示す一部切欠斜視図である。
【図７】従来の免震建物の一例の主要部を示す模式図である。
【符号の説明】
Ｈ免震建物
Ｓ隙間
Ａ立上部材
１地面
２下部構造体
３免震装置
４上部構造体
４５上側防水化粧材
５基礎
５５下側防水化粧材
６連結板
７板体部材
８建物ユニット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seismic isolation building.
[0002]
[Prior art]
A base-isolated building is usually a structure in which an upper structure is installed on a lower structure fixed to the ground via a base isolation device.
The seismic isolation device used here is an elastic body such as a spring spring or rubber, a damper that combines an elastic body and a viscous liquid, or a spherical body provided between parallel plates. When an earthquake occurs and the lower structure vibrates horizontally with the ground, the spring spring or rubber elastic body is deformed, or the vibration is controlled by the difference in vibration cycle between the elastic body of the damper and the viscous liquid. The spherical body rolls on the lower structure to absorb the vibration of this earthquake and make it difficult for the upper structure to vibrate. At this time, the lower structure and the upper structure move relatively.
[0003]
Since the lower structure and the upper structure are relatively moved in this way, the lower structure and the upper structure are separated from each other, and there is always a gap between the lower structure and the upper structure. Exists.
If a gap existing between the lower structure and the upper structure is seen, the internal seismic isolation device can be seen from the outside through this gap, and rain, soil, sand, etc. invade into this gap, and There is a risk that the seismic device will not operate sufficiently.
[0004]
There are various types of base-isolated buildings that have solved this problem. For example, buildings described in Patent Literature 1 to Patent Literature 7 are known.
First, the seismic isolation building described in Patent Literature 1 and Patent Literature 2 will be described with reference to FIG. 7. The seismic isolation building 105 is located on the foundation 100 as a lower structure fixed to the ground 101. In addition, a building main body 104 as an upper structure supported by the gantry 103 is installed via the seismic isolation device 102, and covers a gap between the lower structure (foundation) 100 and the upper structure (building main body) 104. A side plate (decorating plate, cover) 106 is a building provided on the side of the gantry 103 so as to be swingable around a shaft portion 106a.
[0005]
In this seismic isolation building 105, as shown in FIG. 7 (a), the gap between the foundation (lower structure) 100 and the building main body (upper structure) 104 and the seismic isolation device 102 are normally present as shown in FIG. Covered by the side plate 106, it is difficult to see a gap existing between the lower structure 100 and the upper structure 104, and rain, soil, sand, or the like does not easily enter the gap.
[0006]
Then, when an earthquake occurs and the relative position of the foundation (lower structure) 100 and the building main body (upper structure) 104 moves, the side plate 106 rotates around the shaft portion 106a as shown in FIG. Thus, the side plate 106 is prevented from being damaged by swinging in accordance with the movement of the relative position between the lower structure 100 and the upper structure 104.
[0007]
In addition, the base-isolated building described in Patent Document 3 is provided with a foundation that is a lower structure at a position lower than the ground, and a building body that is an upper structure is installed on the foundation via a base isolation device. In the building, a groove is formed between the building body and the surrounding ground. And the groove cover main body covers the upper part of the groove on the lower outer peripheral surface of the building main body, and is further attached to a state of extending greatly above the ground, and the auxiliary groove cover is attached to the inner peripheral surface of the groove. At the lower position of the groove lid body, it is pivotably attached so that it protrudes to the center of the groove, and when the building body approaches, the auxiliary groove lid is lowered by the action of the spring spring attached to the auxiliary groove lid It is designed to rotate. The groove lid main body and the auxiliary groove lid make it difficult to see the seismic isolation device and the like existing inside the groove.
[0008]
When an earthquake occurs and the relative position of the foundation and the building body changes, the groove lid body moves substantially horizontally above the ground. And even if a building main body vibrates large so that a boundary may be exceeded, an auxiliary groove lid will rotate below and it will not collide with a building main body.
[0009]
Moreover, in the base-isolated building described in patent document 4 and patent document 5, the upper structure is provided with a protruding plate protruding outward, and this protruding is performed by a support mechanism that slides on the entrance step. It is designed to support the tip of the plate, and the base plate and seismic isolation device etc. are not visible with this protruding plate. Then, when an earthquake occurs and the relative position between the upper structure and the lower structure fixed to the ground changes, the ejection plate attached to the upper structure is fixed to the ground. It is designed to slide on the entrance step.
[0010]
Further, the base-isolated building described in Patent Document 6 is a base-isolated building in which an upper structure is installed on the lower structure via a seismic isolation device, and substantially horizontally below the upper structure. A dog run that protrudes outward is provided, a decorative wall is erected on the ground corresponding to the tip of the dog run, and the seismic isolation device or the like is difficult to see between the dog run and the decorative wall.
[0011]
Further, in the base-isolated building described in Patent Document 7, the upper structure is provided with an upper decorative body projecting downward around the upper structure, and the lower structure is provided at a position facing the upper decorative body. A body is provided, and the upper and lower cosmetic bodies hide the underfloor space.
[0012]
[Patent Document 1]
JP 2000-234394 A
[Patent Document 2]
JP 2001-262864 A
[Patent Document 3]
JP 2000-120187 A
[Patent Document 4]
JP 2000-352221 A
[Patent Document 5]
JP 2001-73473 A
[Patent Document 6]
JP 2000-320184 A
[Patent Document 7]
JP 2001-182366 A
[0013]
[Problems to be solved by the invention]
However, the member which covers the clearance gap between the upper structure and lower structure used for the base-isolated building described in the said patent documents 1-7 (the side plate described in patent documents 1 and 2, patent documents 3, the groove lid body described in Patent Document 4, the splash plate described in Patent Document 4 and Patent Document 5, the dog running and decorative wall described in Patent Document 6, the upper side described in Patent Document 7 The cosmetic body and the lower cosmetic body) are all exposed.
Thus, since the member which covers the clearance gap between an upper structure and a lower structure is exposed, since it will deteriorate easily, external appearance quality and high durability are requested | required and it will become a high-cost member.
[0014]
Moreover, in the seismic isolation building described in Patent Documents 1 and 2, since it is necessary to attach the side plate to the upper structure so as to be swingable, the structure becomes complicated and the cost increases. Further, when the side plate is attached so as to be able to swing, the side plate swings even in a normal natural wind, and a fluttering sound is generated. In order to prevent this, if a damper mechanism for suppressing this swing is provided, there is a problem that the structure becomes complicated and the manufacturing cost increases. In addition, there is a risk that children, dogs, cats, etc. may mischief when the side plate is opened, or when the side plate is opened by wind, foreign objects may enter through the gap between the upper structure and the lower structure. May be affected.
[0015]
Moreover, since all the members covering between the upper structure and the lower structure except for Patent Document 7 protrude outward from the lower end of the building body, the arrangement of the building is planned in consideration of this protrusion. It has to be done and the impact on site use is great.
SUMMARY OF THE INVENTION An object of the present invention is to provide a seismic isolation building in which a member that covers between an upper structure and a lower structure is attached so that it is not exposed or protrudes greatly outward.
[0016]
[Means for Solving the Problems]
The present invention has been made in order to solve the above-described problems. In the invention according to claim 1, the upper structure is installed on the lower structure fixed to the ground via the seismic isolation device. The lower structure is provided with a rising member at a lower position corresponding to the outer peripheral portion of the upper structure, and the upper end portion of the rising member is below the upper structure. A plate member protruding substantially horizontally in the inner direction is provided, and a gap between the plate member and the upper structure is made small.
[0017]
The rising member according to claim 1 is provided between the building main body and the ground around the building main body, and may be a wall or a foundation. In general, since there is usually a foundation around the building, it is preferable to use this foundation. And in the case of a foundation, when a connecting plate is attached on the foundation as described in claim 2, a space substantially equal to the height of the connecting plate is formed between the foundation and the building body, and seismic isolation is provided in this space. An apparatus can be provided, which is preferable.
[0018]
That is, the invention according to claim 2 relates to the invention according to claim 1, wherein the rising member includes the plate member, a foundation, and a connecting plate for connecting the foundation and the plate member. It is.
[0019]
The foundation according to claim 2 may be appropriate, but is usually made of concrete. The plate member and the connecting plate may be appropriate, but are preferably made of metal. And this plate member and the connection member may be united, or may be connected.
[0020]
The invention according to claim 3 relates to the invention according to claim 1, wherein the upper structure is provided with an upper waterproof decorative member that covers from the lower outer surface of the upper structure to a position slightly higher than the upper end of the plate member. The lower structure is provided with a lower waterproof decorative member that covers the outer surface of the rising member below a height substantially equal to the upper end of the rising member. The lower waterproof decorative member and the upper waterproof decorative member are arranged in a state where the lower ends of the members face each other.
[0021]
The invention according to claim 4 relates to the invention according to claim 3, wherein the upper waterproof decorative member is detachably attached to the upper structure, and the lower waterproof decorative member and the plate member are separately provided on the rising member. It is attached detachably.
[0022]
(Function)
The invention according to claim 1 is a base-isolated building in which an upper structure is installed on a lower structure fixed to the ground via a seismic isolation device, and the lower structure includes the upper structure. A rising member is provided at a lower position corresponding to the outer peripheral portion of the plate, and a plate member protruding substantially horizontally inwardly under the upper structure is provided at the upper end of the rising member. Since the gap between the member and the upper structure is made small, the gap existing between the upper structure and the plate member provided in the lower structure is small, and substantially horizontally in the inner direction. It is long, and it is difficult to see the internal seismic isolation device from this gap, and rain, earth, sand, etc. are difficult to invade.
[0023]
The plate member protrudes substantially horizontally from the upright member toward the inner side of the upper structure and does not appear outward, so that it is difficult to deteriorate. Therefore, this plate member can be manufactured with an inexpensive material.
Moreover, since there is no side plate attached so that rocking | fluctuation is possible, there is no possibility that the noise of a side plate will generate | occur | produce and a child, a dog, and a cat will open a side plate.
[0024]
The invention according to claim 2 relates to the invention according to claim 1, wherein the rising member includes the plate member, the foundation, and a connecting plate that connects the foundation and the plate member. A space approximately equal to the height of the connecting plate is formed between the upper structure and the upper structure, and a seismic isolation device having a height approximately equal to this space can be provided on the basis, which is convenient. In addition, when the plate member is connected to the connecting plate, the connecting plate is attached in advance to the foundation, and the plate member is connected to the connecting plate. The plate member is directly attached to the foundation such as concrete. Easy to attach to the foundation.
[0025]
The invention according to claim 3 relates to the invention according to claim 1, wherein the upper structure is provided with an upper waterproof decorative member that covers from the lower outer surface of the upper structure to a position slightly higher than the upper end of the plate member. The lower structure is provided with a lower waterproof decorative member that covers the outer surface of the rising member below a height substantially equal to the upper end of the rising member. Since the lower waterproof decorative member and the upper waterproof decorative member are arranged in a state where the lower ends of the members face each other, between the lower structure and the upper structure covered with the upper waterproof decorative member and the lower waterproof decorative member It is difficult to see existing gaps and plate members.
[0026]
Therefore, it is more difficult to see the seismic isolation device inside this gap, and rain, earth, sand, etc. are more difficult to enter from this part, so that direct sunlight does not enter inside this gap, and the plate member existing inside Etc. are more difficult to deteriorate. Further, by making the upper waterproof decorative member and the lower waterproof decorative member excellent in waterproofness and design, this gap portion becomes beautiful, and rainwater hardly enters inside.
[0027]
Further, since the upper waterproof decorative member only covers up to a position slightly higher than the upper end of the plate member, a large earthquake occurs and the upper structure moves greatly in the inner direction of the foundation, and the upper waterproof decorative member Even if it exceeds the rising member on the indoor side, the upper waterproof decorative member higher than the upper end of the rising member does not collide with the rising member.
[0028]
In addition, since the lower waterproof decorative member only covers the outer surface of the rising member below a height substantially equal to the upper end of the rising member, a large earthquake occurs, and the upper structure is directed toward the outer side of the foundation. As a result, even if the lower waterproof decorative member moves to the inner side of the upper structure, the lower waterproof decorative member remains on the outer surface of the rising member below a height substantially equal to the upper end of the rising member. The upper structure which is lower than the rising member and thus higher than the rising member does not collide with the lower waterproof decorative member.
[0029]
In the invention of claim 4, since the upper waterproof decorative member is detachably attached to the upper structure, and the lower waterproof decorative member and the plate member are separately attached to the rising member separately, Even if the upper waterproof decorative member, the lower waterproof decorative member, and the plate member are deteriorated after being used for a long time, only the deteriorated members can be easily removed and replaced.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described by way of examples.
(Example)
1 to 6 show an embodiment in which the present invention is applied to a unit building. FIG. 1 is a perspective view showing a base-isolated building that is a unit building, and FIG. FIG. 3 is a cross-sectional view showing the connecting portion of the superstructure, FIG. 3 is a cross-sectional view showing a state in which the main body of the base-isolated building shown in FIG. FIG. 5 is a cross-sectional view showing a portion to which a seismic isolation device is attached. FIG. 5 shows only the main part for easy understanding of the seismic isolation building shown in FIG. (B) is a schematic diagram showing a state when the building main body is largely moved inside the foundation, (c) is a schematic diagram showing a state when the building main body is largely moved outside the foundation, and FIG. It is a partially cutaway perspective view showing a building unit.
[0031]
1 to 6, H is a base-isolated building which is a unit building. As shown in FIGS. 1 to 5, this base-isolated building H is isolated on the lower structure 2 fixed to the ground. The upper structure 4 is installed via the device 3.
The lower structure 2 refers to a base 5 fixed to the ground, a bundle fixed to the ground such as a bundle and a foundation 5 attached to the bundle.
[0032]
As shown in FIGS. 2 and 3, the foundation 5 is made of precast concrete and is installed on the ground 1.
The foundation 5 is provided at lower positions on both sides of the building unit 8 so that a building unit 8 described later can be installed. Therefore, the foundation 5 exists not only in the outer peripheral portion of the upper structure 4 on which the plurality of building units 8 are installed, but also in the central portion.
[0033]
As shown in FIGS. 2 and 3, a rising member A including a base 5, a connecting plate 6, and a plate member 7 is provided at a lower position corresponding to the outer peripheral portion of the upper structural material. Yes. That is, a connecting plate 6 is provided on the foundation 5, and a plate member 7 is provided at the tip of the connecting plate 6.
[0034]
The connecting plate 6 is formed by forming two plates made of an alloy (ZAM) having a thickness of 2.3 mm into an L shape, and one piece 61 of this L shape is attached to the indoor side surface of the foundation 5 with a screw 65. The connecting plate 6 can be removed by unscrewing the screw 65. That is, it is detachable.
[0035]
An L-shaped mounting bracket 63 for mounting the plate member 7 is attached to the upper end of the other piece 62 of the connecting plate 6 by welding, and the base 5 and the one L-shaped piece 61 are connected to each other. A urethane resin sheet 69 containing a liquid waterproofing agent such as coal tar is attached to the corner of the base 5 and one piece 61 so that rainwater does not enter from the gap.
[0036]
The plate member 7 is a ZAM plate having a thickness of 2.3 mm, and is attached to an L-shaped mounting bracket 63 welded to the other piece of the connecting plate 6 with screws 75. The plate member 7 can be removed by screwing out. That is, it is detachable.
The plate member 7 is attached in a state in which the outer edge protrudes long in the inner direction from the approximate center line of the upper surface of the foundation 5. Therefore, as will be described later, when the upper structure 4 is installed upward, the plate member 7 is positioned below the upper structure 4 and protrudes greatly inward. An extremely small slit-like substantially horizontal gap S is formed between the upper structure 4 and the plate member 7.
[0037]
A lower waterproof decorative member 55 made of aluminum is attached to the upper surface of the foundation 5 on the outdoor side.
The upper end of the lower waterproof decorative member 55 is substantially the same height as the upper end of the plate member 7, and the lower waterproof decorative member 55 covers the plate member 7 and the upper end of the foundation 5. It has become.
[0038]
As the seismic isolation device 3, two types of seismic isolation device 31 having a spherical body and an oil damper (not shown) are used. As shown in FIG. 4, the seismic isolation device 31 having a spherical body includes a spherical body 34 provided between an upper plate 32 and a lower plate 33. The opposite surfaces of the upper plate 32 and the lower plate 33 are spherical surfaces with the center being recessed outward. Normally, the sphere 33 is positioned approximately at the center of the recessed spherical surface, and an earthquake occurs to When a force that moves substantially horizontally is applied to the plate 32 and the lower plate 33, the sphere 34 rotates and the relative positions of the upper plate 32 and the lower plate 33 move in a substantially horizontal direction.
[0039]
Then, a fixed base 35 is bridged and mounted on a foundation 5 on which a building unit 8 to be described later is bridged and installed, and a plurality of seismic isolation devices 31 having spherical bodies are installed on the fixed base 35. It has been.
An oil damper seismic isolation device (not shown) is also provided on the fixed base 35. The seismic isolation devices 31 and oil dampers having a plurality of spherical bodies are arranged substantially evenly below the building unit 8 installed above the seismic isolation device 31 and the oil damper.
[0040]
The seismic isolation device 8 changes the relative position between the upper structure 4 above the upper plate 32 and the lower structure 2 below the lower plate 33 when an earthquake occurs. The device 3 (the seismic isolation device 31 having an oil damper and a spherical body not shown) is adapted to return to its original state.
The upper structure 4 includes a gantry 41, nine building units 8 on the first floor installed on the gantry 41, and nine buildings on the second floor installed on the nine building units 1. It consists of a unit 8 and a roof panel 99 mounted on the building unit 1 on the second floor.
[0041]
As shown in FIG. 6, the building unit 8 used at this time has four steel quadrangular cylindrical columns 81 erected at four corners of a rectangular shape, and a rectangular lower end portion of the four columns 81. Four steel cross section U-shaped floor beams 82 connected along the side of the shape, and four steel cross sections connecting the upper ends of the four columns 81 along the rectangular side It has a skeleton composed of a U-shaped elongated ceiling beam 83.
[0042]
Then, the building unit 8 has a floor beam 84 of a steel square tubular body passed to the opposite floor beam 82 of the skeleton, and a wooden floor joist 85 is attached on the floor beam 84. A floor surface material 86 of particle board is attached on the floor joist 85 to form a floor, and a wooden ceiling edge 87 is attached and attached to the ceiling beam 83 opposite to the skeleton. A ceiling surface material 88 of gypsum board is attached to form a ceiling.
[0043]
In addition, a space 89 is provided between the floor beam 82 and the ceiling beam 83 at the place where the outer wall is provided, and the wall 89 is partially illustrated in FIG. 2 and FIG. An inner wall panel is attached, and a glass wool heat insulating material (not shown) is attached between the outer wall panel 9 and the inner wall panel to form an outer wall.
[0044]
The outer wall panel 9 has a rectangular outer wall material 91 of a hard wood cement board having a thickness of approximately 12 mm, a frame 92 in which a steel square cylindrical body provided around the outer wall material 91 is assembled in a rectangular shape, It consists of a crosspiece 93 of a steel square tubular body (not shown) that is passed to the frames 92 on both sides of the frame.
A seismic isolation device fixing member 36 is attached on each of the plurality of seismic isolation devices 3, and a gantry 41 is installed on the plurality of seismic isolation device fixing members 36 and an oil damper (not shown). The building unit 8 manufactured at the factory is installed on the gantry 41.
[0045]
An upper waterproof decorative member 45 made of aluminum is attached to the upper part on the outdoor side on the side surface of the gantry 41 that appears below the outer peripheral portion of the upper structure 2.
The upper end of the upper waterproof decorative member 45 has substantially the same height as the upper end of the fixing member 39, and the lower end is slightly higher than the upper end of the lower structure 2.
Then, the upper waterproof decorative member 45 and the lower waterproof decorative member 55 are arranged so that the lower end of the upper waterproof decorative member 45, the lower waterproof decorative member 55, and the upper end face each other.
[0046]
The upper waterproof decorative member 45 and the lower waterproof decorative member 55 are made of aluminum and have excellent design and waterproof properties.
Since the roof panel 99 is substantially the same as a conventional folded roof panel, description thereof is omitted.
[0047]
Next, the construction method and effect | action of this seismic isolation building H are demonstrated.
The building unit 8, the roof panel 99, the seismic isolation device 3 and the like are manufactured at the factory and transported to the construction site.
At the construction site, a foundation 5 is provided on the ground 1 in advance. Then, a connecting plate 6 is attached to the base 5 below the outer peripheral portion of the upper structure 4, and a rising member A is provided by attaching a plate member 7 to the upper end of the connecting plate 6. The decorative member 55 is attached.
[0048]
Further, a fixed base 34 is mounted on the foundation 5 that is to be installed over the building unit 8, and a seismic isolation device 31 having a spherical body on the fixed base 34 or an oil damper such as an oil damper (not shown). The device 3 is installed, and the seismic isolation device 3 and the oil damper are fixed with screws 38.
Next, the seismic isolation device fixing member 36 is attached on the seismic isolation device 31 having the spherical body and fixed with screws 39 so that the upper surfaces of the oil damper and the seismic isolation device fixing member 36 are substantially the same.
[0049]
A base 41 is mounted on the seismic isolation fixing member 36 and the oil damper, and fixed with bolts and nuts 42.
Then, the building unit 8 is installed on the seismic isolation device fixing member 36 and the oil damper and fixed with bolts 49.
In this way, nine building units 8 are installed to form the first floor, and nine building units 8 are installed on the first floor building unit 8 to form the second floor. The roof panel 99 is attached on the unit 8 to form the roof 99, and the upper waterproof decorative member 45 is attached to the upper part on the outdoor side of the gantry 41. Finally, when other various finishing is performed, the seismic isolation building H is completed.
[0050]
The seismically isolated building H thus completed is a building in which the upper structure 4 is installed on the lower structure 2 fixed to the ground 1 via the seismic isolation device 3.
The lower structure 2 of the seismic isolation building H is provided with a rising member A at a lower position corresponding to the outer peripheral portion of the upper structure 4, and the upper structure is provided at the upper end of the rising member A. A plate member 7 is provided below 4 and projects substantially horizontally inward.
[0051]
The gap between the plate member 7 and the upper structure 4 is small and long in the inward direction, and it is difficult to see the seismic isolation device inside from this gap, and rain, earth, sand, etc. The plate member 7 protrudes substantially horizontally from the upright member A toward the inner side of the upper structure 4 and does not appear to the outside. Therefore, the plate member 7 is hardly deteriorated. Can be manufactured with an inexpensive material.
[0052]
Furthermore, the upper structure 4 is provided with an upper waterproof decorative member 45 that covers from the lower outer surface of the upper structure 4 to a position slightly higher than the upper end of the plate member 7. 7 is provided with a lower waterproof decorative member 55 that covers the outer surface of the lower rising member A from a height substantially equal to the upper end of 7. The upper end of the lower waterproof decorative member 55 and the lower end of the upper waterproof decorative member 45 face each other. Since the lower waterproof decorative member 55 and the upper waterproof decorative member 45 are arranged in the state, the lower structure 2 and the upper structure 4 covered with the upper waterproof decorative member 35 and the lower waterproof decorative member 55 It is difficult to see the gaps and plate member 7 present in the plate. Therefore, the seismic isolation device is more difficult to see, and rain, soil, sand, etc. are more difficult to enter from this part, so that direct sunlight does not enter inside this gap, and plate members etc. existing inside Is more difficult to deteriorate.
[0053]
Further, the upper waterproof decorative member 45 and the lower waterproof decorative member 55 are excellent in waterproofness and design, and this gap portion is beautiful, and rainwater hardly enters inside.
Further, since the upper waterproof decorative member 45 only covers a position slightly higher than the upper end of the plate member 7, a large earthquake has occurred, and the upper structure 4 has a structure as shown in FIG. Even if the upper waterproof decorative member 45 moves greatly inward of the foundation 5 and exceeds the upright member A on the indoor side, the upper waterproof decorative member 45 higher than the upper end of the upright member A is Do not collide with A.
[0054]
Further, since the lower waterproof decorative member 55 only covers the outer surface of the rising member A below the height substantially equal to the upper end of the rising member A, a large earthquake occurs, and FIG. As shown in FIG. 4, even if the upper structure 4 moves greatly in the outward direction of the foundation, as a result, even if the lower waterproof decorative member 55 moves to the inside of the upper structure 4, the lower waterproof decorative member 55 The upper structure 55 is lower than the rising member A, and therefore higher than the rising member, only by covering the outer surface of the rising member A below the height substantially equal to the upper end of the upper member A. No collision with 55.
[0055]
Further, since the upper waterproof decorative member 45 is detachably attached to the upper structure 4, and the lower waterproof decorative member 55 and the plate member 7 are separately attached to the upright member A, they are long. Even if the upper waterproof decorative member 45, the lower decorative member 55, and the plate member 7 are deteriorated over a period of time, only the deteriorated members can be easily removed and replaced.
[0056]
Further, since the rising member A includes the plate member 7, the foundation 5, and the connecting plate 6, the upper structure 4 is provided on the plate member 7. A space substantially equal to the height of the connecting plate 6 is formed between the bodies 4, and the seismic isolation device 3 having a height substantially equal to this space can be provided on the basis, which is convenient. Further, since the plate member 7 and the connecting plate 6 are connected by the screws 75, the connecting plate 6 is previously attached to the foundation, and the plate member 7 may be attached to the connecting plate 6. Is easy to attach to the foundation 5.
[0057]
【The invention's effect】
As described above, the invention described in claim 1 is a seismic isolation building in which an upper structure is installed on a lower structure fixed to the ground via a seismic isolation device. The body is provided with a rising member at a lower position corresponding to the outer peripheral portion of the upper structure, and a plate body projecting substantially horizontally inwardly below the upper structure at the upper end of the rising member Since the member is provided and the gap between the plate member and the upper structure is made small, the gap existing between the upper structure and the plate member of the upper structure is small, and the inner direction The horizontal seismic isolation device is difficult to see through this gap, and rain, earth, sand, etc. are difficult to enter. Further, the plate member projects substantially horizontally in the inner direction of the upper structure, does not appear outside, and hardly deteriorates. Therefore, this plate member can be manufactured with an inexpensive material.
[0058]
The invention according to claim 2 relates to the invention according to claim 1, wherein the rising member includes the plate member, a foundation, and a connecting plate that connects the foundation and the plate member. A space approximately equal to the height of the connecting plate is formed between the upper structure and the upper structure, and a seismic isolation device having a height approximately equal to this space can be provided on the basis, which is convenient.
[0059]
The invention according to claim 3 relates to the invention according to claim 1, wherein the upper structure is provided with an upper waterproof decorative member that covers from the lower outer surface of the upper structure to a position slightly higher than the upper end of the plate member. The lower structure is provided with a lower waterproof decorative member that covers the outer surface of the rising member below a height substantially equal to the upper end of the rising member. Since the lower waterproof decorative member and the upper waterproof decorative member are arranged in a state where the lower ends of the members face each other, the lower waterproof decorative member and the upper structure covered with the lower waterproof decorative member are disposed between It is difficult to see existing gaps and plate members. Therefore, it is more difficult to see the seismic isolation device inside this gap, and rain, earth, sand, etc. are more difficult to enter from this part, so that direct sunlight does not enter inside this gap, and the plate member existing inside Etc. are more difficult to deteriorate. Further, by making the upper waterproof decorative member and the lower waterproof decorative member excellent in waterproofness and design, this gap portion becomes beautiful, and rainwater hardly enters inside.
[0060]
Further, the upper waterproof decorative member only covers up to a position slightly higher than the upper end of the plate member, and the lower waterproof decorative member covers the outer surface of the rising member below a height substantially equal to the upper end of the rising member. Even if a large earthquake occurs and the upper structure moves greatly inward or outward of the foundation, the upper waterproof decorative member that is higher than the upper end of the rising member becomes the rising member. The upper waterproof decorative member is lower than the rising member and the upper structure higher than the rising member does not collide with the lower waterproof decorative member.
[0061]
In the invention according to claim 4, the upper waterproof decorative member is detachably attached to the upper structure, and the lower waterproof decorative member and the plate member are separately detachably attached to the rising member. Even if the upper waterproof decorative member, the lower waterproof decorative member, and the plate member are deteriorated after being used for a long time, only the deteriorated members can be easily removed and replaced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a base-isolated building as a unit building according to an embodiment in which the present invention is applied to a unit building.
FIG. 2 is a cross-sectional view showing a connecting portion between a lower structure and an upper structure of a base-isolated building.
3 is a cross-sectional view showing a state in which the building main body of the base-isolated building shown in FIG. 2 has greatly moved inward of the base during an earthquake.
FIG. 4 is a cross-sectional view showing a portion where a seismic isolation device for a seismic isolation building is attached.
FIG. 5 shows only the main part for easy understanding of the base-isolated building shown in FIG. 2. (A) is a schematic diagram showing a normal state, and (B) is a large building body inside the base. The schematic diagram which shows a state when it moves, (c) is a schematic diagram which shows a state when a building main body has moved largely outside the foundation.
FIG. 6 is a partially cutaway perspective view showing a building unit.
FIG. 7 is a schematic diagram showing the main part of an example of a conventional seismic isolation building.
[Explanation of symbols]
H Seismic isolation building
S clearance
A Standing member
1 ground
2 Substructure
3 Seismic isolation device
4 Superstructure
45 Upper waterproofing cosmetic
5 basics
55 Lower waterproof cosmetic
6 Connecting plate
7 Plate members
8 Building units

Claims

A base-isolated building in which an upper structure is installed on a lower structure fixed to the ground via a base isolation device, and the lower structure has a lower position corresponding to an outer peripheral portion of the upper structure. A rising member is provided at the upper end of the rising member, and a plate member projecting substantially horizontally inwardly is provided below the upper structure, and between the plate member and the upper structure. A base-isolated building characterized by a small gap.

The seismic isolation building according to claim 1, wherein the upright member includes the plate member, a foundation, and a connecting plate that connects the foundation and the plate member.

The upper structure is provided with an upper waterproof decorative member that covers from the lower outer surface of the upper structure to a position slightly higher than the upper end of the plate member, and the lower structure is substantially equal to the upper end of the rising member. A lower waterproof decorative member and an upper waterproof decorative member are provided in a state in which a lower waterproof decorative member that covers the outer surface of the rising member below the height is provided and the upper end of the lower waterproof decorative member and the lower end of the upper waterproof decorative member are opposed to each other The seismic isolation building according to claim 1, wherein members are arranged.

4. The upper waterproof decorative member is detachably attached to the upper structure, and the lower waterproof decorative member and the plate member are separately detachably attached to the rising member. Seismically isolated building.