JP3622902B2

JP3622902B2 - Rolling seismic isolation device with exchange means

Info

Publication number: JP3622902B2
Application number: JP2001122560A
Authority: JP
Inventors: 照雄五十嵐
Original assignee: 五十嵐照雄
Priority date: 2000-05-08
Filing date: 2001-04-20
Publication date: 2005-02-23
Anticipated expiration: 2021-04-20
Also published as: JP2002030829A

Description

【０００１】
【発明の属する技術の分野】
この発明は、軽量建築物の構造物に設置され、台風の発生時や地震発生時に建物が浮き上がるのを防止する浮力抑止機能を備えた交換手段を有する転がり免震装置に関する。
【０００２】
【従来の技術】
従来の免震装置としては、たとえば特開平３−２２８９４０公報に記載された様なものがある。
すなわち、従来の免震装置は、上部受皿と下部受皿の対向面に鋼球を転動自在に介装し、下部受皿を基礎に配置すると共に上部受皿を上部構造物に配置して基礎と上部構造物を分離し、地震の揺れが上部構造物に伝わるのを防止するようになっていた。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記した従来の免震装置の場合には、基礎と建物を分離することにより地震の水平方向の揺れに対して有効であるが、台風発生時や地震発生時に建物に作用する浮力に対する配慮がなされていない。台風の際には建物の外壁等にかかる風圧により建物に浮力が大きくなり、建物が浮き上がるおろれがある。
【０００４】
この発明は上記した従来技術の問題点を解決するためになされたものであり、その目的とするところは、基礎と上部構造物を分離して地震の揺れを防止でき、しかも浮力抑止機能を備え、さらに、経年による点検修理時に交換できる交換手段を有する転がり免震装置を提供することにある。
【0005】
【課題を解決するための手段】
上記目的を達成するために、この発明は、基礎に配置される下部円錐面受皿と、上部構造物に配置される上部受皿と、前記下部円錐面受皿と上部受皿の対向面に転動自在に介装される球体と、を備えたもので、地震発生時、球体の転動で地震の揺れが上部構造物に伝わるのを防止することができる。そして、前記基礎側に配置され前記下部円錐面受皿および上部受皿を取り囲むように全方位の遥動に対応する円筒形の外枠を設け、前記上部受皿の上面に中間部円板を固定し、該中間部円板の上面に中間部材を介して上部フランジを固定すると共に前記中間部円板の上面と上部フランジ下面との間に円形の中間部空間を設け、一方、前記外枠の上部に内側に向って所定幅だけ水平に延びる環状の上部円板を中心から二等分して着脱可能に設け、該上部円板を取り外して前記外枠内の組成部材の組み立て又は保守点検を可能にし、前記上部円板を前記中間部円板の上面と、前記上部フランジ下面との間の中間部空間に摺動自在に挿入したことにより、台風時の建物の外壁等にかかる浮力を、中間部円板上面と上部フランジ下面との間の中間部空間に挿入される上部円板によって支持し、浮き上がりを抑止することができる。
【０００６】
前記上部フランジの上面の中心に所定幅と所定長さの仕切プレートを垂直に設け、該仕切プレートの片側面に仕切プレートと直交する複数箇所に所定幅と所定長さのプレートを垂直に設け、前記仕切プレートの反対側に仕切プレートと平行して前記上部フランジの上面の側端部分に側端のわずかに内側寄りの位置に所定幅と所定長さのプレートを垂直に設け、前記仕切プレート及びプレートのそれぞれの上端にＴ字形の土台受板を水平に設け、前記上部フランジ上面と土台受板の下面との間に形成した上部空間を設け、該土台受板の所定の複数箇所にボルトを通す孔を設けたことで、土台受板の下部の上部空間から操作して、土台の上部から土台受板に向って挿通したボルトの先端のナットと、下部フランジプレート上面のアンカーボルトの先端のナットを緩め、土台受板の上部に載置した土台をジャッキアップして必要に応じて交換手段を有する転がり免震装置を交換することができる。
【０００７】
前記球体を転動自在に保持する帯輪と、該帯輪の外側に水平に固定される下部円板と、該下部円板の外周の複数箇所に小球体を溶着し、前記外枠の内側に水平に延びる下面に半丸溝を全周に有する環状の小球体受円板と、下部フランジの上部に設けた環状形円板と、を備え、前記小球体受円板と環状形円板との上下面間に形成される円形の下部空間に前記下部円板を摺動自在に挿入し、前記半丸溝に前記小球体を嵌脱自在に挿入したことで、前記球体が建物の通常の遥動での転動を抑止するものである。
【０００８】
また、前記外枠の内側に前記小球体受円板の外周の複数箇所に垂直に溶着した突片を介して小球体受円板を水平に着脱可能に設けことにより組立時の前記帯輪および帯輪の外側に水平に固定した下部円板の装着と、経年による点検修理等ができる。前記下部フランジの上面の複数箇所に立設した丸棒の上部を前記環状形円板の下面に設けた複数箇所の穴に挿入し、前記丸棒の周りを取り囲むようにコイルスプリングを設け、前記下部空間に前記下部円板が摺動する際に、前記環状形円板の下面に有する前記コイルスプリングが保有する弾力で前記環状形円板を押し上げて、前記小球体の運動を調節することで、建物の外壁等に掛かる通常的な風圧による建物の揺動を抑止することができる。
【０００９】
そして、前記外枠の外側の上部の複数箇所にピン孔を有するピン受部材を設け、前記上部フランジの面の複数箇所に前記ピン受部材の位置に合わせてピン孔を設け、前記上部フランジの面のピン孔からピン受部材のピン孔に必要に応じてピンを操作して挿入し、交換手段を有する転がり免震装置の据え付け時の位置決めと、前記上部フランジと上部円板との重なり部分の摺動を固定する前記ピンを嵌脱可能に設けたことで、予め気象情報に基づき台風接近時、事前に前記ピンを操作してピン受部材のピン孔にピンを挿入することで台風による風圧で建物の揺動を防止することができる。
【００１０】
また、前記下部フランジの面の複数ケ所に排水の孔を設けたことで、突然の豪雨で床下に水が浸水したとき建物の周囲の水が引いた後、交換手段を有する転がり免震装置内に溜まった水を自然に排水することができる。
【００１１】
さらに、前記交換手段を有する転がり免震装置の内側および外側の各構成部材の全面に、経年と共に錆が発生するのを防止するために亜鉛メッキを施したことで、耐用年数の長い交換手段を有する転がり免震装置を保持することができる。
そして、前記下部円錐面受皿及び上部受皿における球体との接触面には、潤滑油を塗布されて滑りをスムーズにすることができる。
【００１２】
そして、前記上部フランジプレートの下面と上部円板の上面との間の隙間の上部円板の外周の上面に小幅の短い毛を植毛したことで交換手段を有する転がり免震装置内への塵埃等の侵入を防止することができる。
【００１３】
【発明の実施の形態】
以下に、この発明を図示の実施の形態に基でいて詳細に説明する。
図１ないし図７は、この発明の実施の形態に係る交換手段を有する転がり免震装置を示している。以下の説明では図１を中心に説明し、適宜参照する図を表示するものとする。
図１において、１は交換手段を有する転がり免震装置全体を示しており、この交換手段を有する転がり免震装置１は、建築物等の基礎４０と上部構造物５０を構成する土台５１の間に設けられている。土台５１の上には上部構造物の軸組である柱５５が立設される（図６参照）。交換手段を有する転がり免震装置１は、基礎４０と土台５１の間の適宜ヶ所に複数配置される。
【００１４】
交換手段を有する転がり免震装置１は、基礎４０に配置される円形の鋼鉄製下部円錐面受皿２と上部構造物側の土台５１に配置される円形の鋼鉄製上部受皿３と、下部円錐面受皿２と上部受皿３の対向面間に転動自在に介装される球体としての鋼球４と、を備えている。球体の材料としては鋼鉄に限定されるものではなく、剛性の高い材料であれば鋼鉄以外の金属を用いてもよい。下部円錐面受皿２および上部受皿３の対向面には、鋼球４が水平方向に全方位にわたって所定距離だけ転動移行可能な円形の円錐面２ａ，水平面３ａが設けられている。下部円錐面受皿で、これの上面には、例えば、傾斜角１度の円錐状斜面２ａが形成される、上部受皿３の下面３ａは水平面としている。下部円錐面受皿２および上部受皿３における鋼球４との接触面には潤滑油が塗布される。
【００１５】
そして、基礎４０側に配置され下部円水錐面受皿２および上部受皿３を取り囲むように下部フランジ１０の上面に外枠５が設けられ、上部受皿３の上面には中間部円板６を固定し、中間部円板６の上面には中間部材７を介して上部フランジとしての上部フランジプレート１１が固定されると共に、中間部円板６上面と上部フランジプレート１１下面との間に円形の中間部空間８が設けられている。中間部円板６の上面と上部フランジプレート１１下面は、その中心部分で中間部材７を介して溶着されている。一方、外枠５の上部には内側に向かって所定幅だけ水平に延びる環状の上部円板９が中心から二等分して設けられ、この上部円板９が中間部円板６上面と上部フランジプレート１１下面との間の中間部空間８に摺動自在に挿入されている。ここで、台風の祭に建物の屋根及び外壁等に風圧がかかると建物に浮力が発生するが、中間部円板６の上面と上部フランジプレート１１の下面との間の上部空間８に挿入される上部円板９によって支持される。特に、中間部円板６の外形寸法は上部円板９の内径寸法より大きいので、浮力が発生しても上部への抜脱が不可能であり、確実に浮き上がりを防止することが出来る。
【００１６】
また、前記上部円板９を二等分したそれぞれを外枠５の上部に着脱可能に設けたことで、交換手段を有する転がり免震装置１内の各構成部材の組立時の部材の装着と、経年による内部の点検修理等に備える（図１，図５参照）。
【００１７】
そして、下部円錐面受皿２と外枠５は共通の下部フランジプレート１０に固定されている。この下部フランジプレート１０は基礎４０に複数のアンカーボルト５４で固定される（図４、図６参照）。
【００１８】
さらに、上部フランジプレート１１上面の中心に所定幅と所定長さの仕切プレート３０を垂直に設け、仕切プレート３０の片側面には仕切プレート３０と直交して複数ケ所に所定幅と所定長さのプレート３１を垂直に設け，前記仕切プイレート３０の反対側に仕切プレート３０と平行して前記フランジプレート１１の上面の側端部分に所定幅と所定長さのプレート３１を垂直に設け、前記仕切プレート３０及びプレート３１のそれぞれの上端にＴ字形の土台受板３２を水平に設け、前記上部プランジプレート１１上面と土台受板３２の下面との間に形成する上部空間３３を設け、土台受板３２の上面に載置した土台５１をジャッキアップして、土台５１の上から土台受板３２に向かって挿通したボルト５２の先端のナット５２ａと、下部フランジプレート１０側のアンカーボルト５４の先端のナット５４ａとを操作して緩め、交換手段を有する転がり免震装置１の点検修理時の交換に備えるものである。そして、土台５１は上記した土台受板３２に複数のボルト５２によって固定される（図１，図６、参照）。
【００１９】
また、前記鋼球４には、鋼球４を転動自在に保持する帯輪１２と、この帯輪１２の外側に水平に固定される下部円板１３の外周の複数ヶ所に小球体１４を溶着し、小球体受円板１５の外周の複数ヶ所に垂直に溶着した突片１５ａを介して外枠５の内側に水平に着脱可能に設け、下部円板１３等の装着と点検修理等に備えるものである。そして、下部フランジプレート１０の上面の複数ヶ所に立設した丸棒１７の上部を環状形円板１６の下面に設けた複数ケ所の孔１９の上部に空隙１９ａを設けて挿入し、前記丸棒１７の周りを取り囲むように前記下部フランジプレート１０の上面と前記環状形円板１６下面にコイルスプリング１８を溶着し、前記小球体受円板１５の下面と環状形円板１６の上面との間に形成される下部空間２０を設け、地震の揺動時前記下部円板１３が前記下部空間２０に摺動し、一方、小球体受円板１５の下面の所定ヶ所に半丸溝２１を全周に設け、前記半丸溝２１に小球体１４が嵌脱自在に圧接し、前記半丸溝２１に前記小球体１４が嵌合することで、日常的な風圧による建物の揺動を抑止することができる。（図１，図２，図３参照）。
【００２０】
また、外枠５の外側の上部の複数ヶ所にピン孔２５ａを有するピン受部材２３を固定し、上部フランジプレート１１の面の複数ヶ所にピン受部材２３の位置に会わせてピン孔２５を設け、該ピン孔２５を介してピン受部材２３のピン孔２５ａにピン２４を操作して嵌脱可能に挿入し、交換手段を有する転がり免震装置１を据付ける際、基礎側と上部構造物側とのずれによる位置を確定するものである。そして、上部フランジプレート１１の上面の複数ヶ所にピン２４を鎖２４ａで繋留しておくものである（図５，図７参照）。
【００２１】
そして、下部フランジプレート１０の面の複数ヶ所に排水孔２２を有し、突然の豪雨で床下に水が浸水したとき、建物の周囲の水が引いた後、交換手段を有する転がり免震装置１内に溜まった水を自然に排水するためのものである（図１参照）。
【００２２】
交換手段を有する転がり免震装置１の外側及び内側の各構成部材の全面に亜鉛メッキを施して耐用年数に備えたものである。
【００２３】
上部フランジプレート１１の下面と、上部円板９の上面との間の隙間２７の上部円板９の上面の外周に小幅の短い毛２６を植毛し、交換手段を有する転がり免震装置１内に塵埃等の侵入を防止するためのものである（図１，図２，図３参照）。
【００２４】
【発明の効果】
以上説明したように、請求項１に記載の発明によれば、基礎側に配置される下部円錐面受皿と上部構造物に配置される上部受皿の間に球体を転動自在に介装して、基礎と上部構造物を分離したので、地震発生時、球体の転動で地震の揺れが上部構造物に伝わるのを防止することができる。
そして、基礎側に配置された外枠に設けた上部円板を、上部受皿上面に設けた中間部円板の上面と上部フランジ下面との間の中間部空間に摺動自在に挿入したので、台風時、基礎と建物が分離している状態で建物の外側などに風圧がかかり建物に浮力が発生しても、浮力を上部円板によって支持することができ、建物の浮き上がりを抑止することができる。そして、着脱可能にした上部円板を交換手段を有する転がり免震装置内の構成部材の装着と、点検修理等に備えたものである。
【００２５】
請求項２に記載の発明によれば、前記上部フランジの上面の中心に所定幅と所定長さの仕切プレートを垂直に設け、該仕切プレートの片側面に仕切プレートに直交する複数ヶ所に所定幅と所定長さのプレートを垂直に設け、前記仕切プレートの反対側に仕切プレートと平行して上部フランジ上面の側端部分に所定幅と所定長さのプレートを垂直に設け，前記仕切プレート及びプレートのそれぞれの上端にＴ字形の土台受板を水平の設け、該土台受板の所定の複数ヶ所にボルトを通す孔を設けたことで、前記土台受板の上面に載置される土台をジャッキアップし、前記上部空間から操作してボルトの先端のナットを緩め、前記下部フランジプレート側のアンカーボルトの先端のナットを緩め、交換手段を有する転がり免震装置を取り外し交換することができる。
【００２６】
請求項３に記載の発明によれば、球体を転動自在に保持する帯輪と、該帯輪の外側に水平に固定される下部円板と、前記外枠の内側に水平に設けた環状の小球体受円板と、下部フランジの上部に設けた環状形円板と、を備え、前記小球体受円板と環状形円板との上下面間に形成される下部空間に前記下部円板を摺動自在に挿入したことにより、帯輪に案内されて球体がスムースに移動する。
【００２７】
請求項４に記載の発明によれば、前記外枠の内側に小球体受円板の外周の複数ヶ所に垂直に溶着した突片を介して水平に着脱可能に設け、前記下部フランジの上面の複数箇ケ所に立設した丸棒の上部を、環状形円板の下面に設けた複数ケ所の孔に挿入し、前記丸棒の周りを取り囲むようにコイルスプリングを設け、前記小球体受円板と環状形円板との上下面間に形成される下部空間を設け、一方、前記帯輪の外側に水平に固定される下部円板の外周の複数ヶ所に小球体を溶着し、前記小球体受円板の下面の所定ヶ所に半丸溝を全周に設け、前記半丸溝に前記小球体が嵌脱自在に圧接し、前記半丸溝に小球体が嵌合することで建物の外壁等にかかる日常的な風圧による建物の揺動を抑止することができる。
【００２８】
請求項５に記載の発明によれば、前記外枠の外側の上部の複数ヶ所にピン孔を有するピン受部材を設け、前記上部フランジの面の複数ケ所に前記ピン受部材の位置に合わせてピン孔を設け、前記上部フランジのピン孔からピン受部材のピン孔にピンを必要に応じて操作し、嵌脱可能に設けたことで交換手段を有する転がり免震装置の基礎への据付け時の上下の位置決めと、予め気象情報に基き台風接近時前記ピンを操作してピン受部材のピン孔に挿入することで台風の風圧による建物の揺動を防止することができる。
【００２９】
請求項６に記載の発明によれば、前記下部フランジの面の複数ケ所に排水の孔を設けたことで、突然の豪雨等で床下に水が浸水した場合、床下の水が引いた後、交換手段を有する転がり免震装置内に溜まった水を自然に排水することができる。
【００３０】
請求項７に記載の発明によれば、交換手段を有する転がり免震装置の外側及び内側の各構成部材の全面に亜鉛メッキを施したことで、交換手段を有する転がり免震装置の錆びの発生を防止し耐用年数に備えることができる。
【００３１】
請求項８に記載の発明によれば、下部円錐面受皿及び上部受皿における球体との接触面には潤滑油を塗布しておくことにより、地震時の揺動での球体の転動面の潤滑性がよくなる。
請求項９に記載の発明によれば、上部フランジプレートの下面と上部円板の上面との間の隙間の上部円板の上面の外周に小幅の短い毛を植毛することで交換手段を有する転がり免震装置内に塵埃等の侵入を防止することができる。
【図面の簡単な説明】
【図１】図１はこの発明の実施の形態に係る交換手段を有する転がり免震装置の縦断面図であり図４のＡ−Ａ線、図５のＢ−Ｂ線の各断面に対応する。
【図２】図２は図１の交換手段を有する転がり免震装置の下部円錐面受皿が図中右へ移動した状態の断面図である。
【図３】図３は図１の交換手段を有する転がり免震装置の下部円錐面受皿が図中左に移動した状態の断面図である。
【図４】図４は図１のＡ−Ａ線断面図である。
【図５】図５は図１のＢ−Ｂ線断面図である。
【図６】図６は交換手段を有する転がり免震装置の斜視図である。
【図７】図７は交換手段を有する転がり免震装置のピン受部材の要部拡大図である。
【符号の説明】
１交換手段を有する転がり免震装置、４０基礎、５０上部構造物、
２下部円錐面受皿、３上部受皿、４鋼球、５外枠、６中間部円板、
７中間部材、８中間部空間、９上部円板、９ａ隙間、
１０下部フランジプレート、１１上部フランジプレート、１２帯輪、
１３下部円板、１４小球体、１５小球体受円板、１６環状形円板、１６ａ突片、
１７丸棒、１８コイルスプリング、１９孔、２０下部空間、２１半丸溝、
２２排水孔、２３ピン受部材、２４ピン、２５ピン孔、２６毛、２７隙間、
３０仕切プレート、３１プレート、３２土台受板、３３上部空間、５３孔、[0001]
[Field of the Invention]
The present invention relates to a rolling seismic isolation device that is installed in a structure of a lightweight building and has an exchange means having a buoyancy suppression function that prevents a building from floating when a typhoon occurs or an earthquake occurs.
[0002]
[Prior art]
As a conventional seismic isolation device, there exists a thing as described in Unexamined-Japanese-Patent No. 3-228940, for example.
That is, the conventional seismic isolation device has a steel ball movably interposed between opposing surfaces of the upper tray and the lower tray, and the lower tray is disposed on the foundation and the upper tray is disposed on the upper structure. The structure was separated to prevent the shaking of the earthquake from being transmitted to the superstructure.
[0003]
[Problems to be solved by the invention]
However, in the case of the conventional seismic isolation device described above, it is effective against horizontal shaking of the earthquake by separating the foundation and the building, but consideration is given to the buoyancy that acts on the building when a typhoon or earthquake occurs. Has not been made. During a typhoon, the buoyancy of the building increases due to the wind pressure on the outer wall of the building, and the building may be lifted.
[0004]
The present invention has been made to solve the above-mentioned problems of the prior art, and the object of the present invention is to separate the foundation and the upper structure to prevent earthquake shaking and to have a buoyancy suppression function. Furthermore, another object of the present invention is to provide a rolling seismic isolation device having an exchange means that can be exchanged at the time of inspection and repair over time.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is capable of rolling freely on a lower conical surface tray disposed on a foundation, an upper tray disposed on an upper structure, and opposed surfaces of the lower conical surface tray and the upper tray. It is possible to prevent the shaking of the earthquake from being transmitted to the superstructure due to the rolling of the sphere when an earthquake occurs . Then, a cylindrical outer frame corresponding to the omnidirectional swing is provided so as to surround the lower conical surface tray and the upper tray placed on the base side, and an intermediate disc is fixed to the upper surface of the upper tray, An upper flange is fixed to the upper surface of the intermediate disk via an intermediate member, and a circular intermediate space is provided between the upper surface of the intermediate disk and the lower surface of the upper flange. An annular upper disk extending horizontally by a predetermined width toward the inside is detachable from the center so that it can be attached and detached, and the upper disk can be removed to enable assembly or maintenance inspection of the composition member in the outer frame. the the upper surface of the upper disk wherein the intermediate portion disc, by the slidably inserted into the middle portion space between the upper flange bottom surface, the buoyancy exerted on the outer wall or the like of the Typhoon building, the intermediate portion Intermediate space between the upper surface of the disk and the lower surface of the upper flange Supported by the upper disc is inserted, it is possible to suppress lifting.
[0006]
A partition plate having a predetermined width and a predetermined length is provided vertically at the center of the upper surface of the upper flange, and a plate having a predetermined width and a predetermined length is provided vertically at a plurality of locations orthogonal to the partition plate on one side of the partition plate, the provided partition plates slightly plates of a predetermined width and a predetermined length at a position inboard of opposite parallel to the side edge to side edge portions of the upper surface of the upper flange and the partition plate vertically, the partition plate and each of the upper end of the plate provided with the base receiving plate of T-shaped horizontally, the upper space formed between the lower surface of the upper flange upper surface and the base receiving plate provided with a bolt to a predetermined plurality of positions of the base support plate through by providing the hole, by operating the upper space of the lower base support plate, the bolt tip of the nut which is inserted toward the top of the foundation base receiving plate, the lower flange plate upper surface of the anchor bolt Loosen the end of the nut, it is possible to replace the seismic isolation device rolling having exchange means as necessary foundation placed on the upper part of the base support plate and jacked up.
[0007]
A small ring is welded to a plurality of locations on the outer circumference of the lower ring, a lower disk horizontally fixed to the outer side of the band , An annular small sphere receiving disk having a semicircular groove on the entire lower surface thereof and an annular disk provided on the upper portion of the lower flange, the small sphere receiving disk and the annular disk The lower disk is slidably inserted into a circular lower space formed between the upper and lower surfaces of the sphere, and the small sphere is removably inserted into the semicircular groove so that the sphere can be This is to prevent rolling in the swaying movement.
[0008]
Further, the small ring receiving circular plate can be horizontally attached to and detached from the outer frame through protrusions vertically welded to a plurality of locations on the outer periphery of the small spherical body receiving circular plate, and the band ring during assembly can be attached and detached. It is possible to install a lower disk that is fixed horizontally on the outside of the band and to perform inspections and repairs over time. Wherein the upper portion of the round bar erected at a plurality of portions of the upper surface of the lower flange is inserted into the hole of the plurality of locations provided on the lower surface of the annular shaped disc, the coil spring is provided so as to surround the periphery of the rod, the When the lower disk slides in the lower space, the annular disk is pushed up by the elasticity of the coil spring on the lower surface of the annular disk, thereby adjusting the movement of the small spheres. , it is possible to suppress the rocking of the building by normal specific wind's pressure on the outer wall of a building.
[0009]
Then, the pin receiving member having a pin hole at a plurality of locations of the top of the outside of the outer frame is provided, the pin hole is provided to match the pin receiving member located at a plurality of locations of the surface of the upper flange, the upper flange Positioning during installation of a rolling seismic isolation device having an exchange means, and an overlapping portion of the upper flange and the upper disc , by inserting a pin from the pin hole of the surface into the pin hole of the pin receiving member as necessary When the typhoon is approaching based on weather information in advance, the pin is operated in advance to insert the pin into the pin hole of the pin receiving member. The building can be prevented from swinging by the wind pressure.
[0010]
In addition, by providing drainage holes at multiple locations on the surface of the lower flange, when the water around the building is submerged due to sudden heavy rain, the surrounding water of the building is drawn, and then the inside of the rolling seismic isolation device having an exchange means The water collected in can be drained naturally.
[0011]
Further, the entire surface of the inner and outer of the components of the seismic isolation device rolling having said exchanging means, by galvanized for rust is prevented from occurring with aging, long exchange means of life It can hold a rolling seismic isolation device.
Then, lubricating oil is applied to the contact surfaces of the lower conical surface tray and the sphere in the upper tray so that the sliding can be made smooth.
[0012]
And, dust or the like in the rolling seismic isolation device having an exchange means by planting short hairs on the upper surface of the outer periphery of the upper disk in the gap between the lower surface of the upper flange plate and the upper surface of the upper disk Can be prevented from entering.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail on the basis of the illustrated embodiment.
1 to 7 show a rolling seismic isolation device having exchange means according to an embodiment of the present invention. In the following description, the explanation will be focused on FIG. 1, and a diagram to be referred to as appropriate will be displayed.
In FIG. 1, 1 shows the whole rolling seismic isolation device having an exchanging means. The rolling seismic isolation device 1 having the exchanging means is provided between a foundation 40 such as a building and a base 51 constituting an upper structure 50. Is provided. On the base 51, a pillar 55, which is a framework of the upper structure, is erected (see FIG. 6). A plurality of rolling seismic isolation devices 1 having exchange means are arranged at appropriate positions between the foundation 40 and the base 51.
[0014]
A rolling seismic isolation device 1 having an exchange means includes a circular steel lower conical surface tray 2 disposed on a foundation 40, a circular steel upper base 3 disposed on a base 51 on the upper structure side, and a lower conical surface. And a steel ball 4 as a sphere interposed between the opposing surfaces of the saucer 2 and the upper saucer 3 so as to roll freely. The material of the sphere is not limited to steel, and a metal other than steel may be used as long as the material is highly rigid. On the opposing surfaces of the lower cone surface tray 2 and the upper tray 3, there are provided a circular cone surface 2 a and a horizontal surface 3 a to which the steel ball 4 can roll and move by a predetermined distance in all directions in the horizontal direction. For example, a conical inclined surface 2a having an inclination angle of 1 degree is formed on the upper surface of the lower conical surface tray. The lower surface 3a of the upper tray 3 is a horizontal surface. Lubricating oil is applied to the contact surfaces of the lower conical surface tray 2 and the upper tray 3 with the steel balls 4.
[0015]
An outer frame 5 is provided on the upper surface of the lower flange 10 so as to surround the lower circular water cone surface tray 2 and the upper tray 3 and is arranged on the base 40 side, and an intermediate disc 6 is fixed to the upper surface of the upper tray 3. An upper flange plate 11 as an upper flange is fixed to the upper surface of the intermediate disc 6 via an intermediate member 7, and a circular intermediate is provided between the upper surface of the intermediate disc 6 and the lower surface of the upper flange plate 11. A partial space 8 is provided. The upper surface of the intermediate disk 6 and the lower surface of the upper flange plate 11 are welded via the intermediate member 7 at the center. On the other hand, the upper part of the outer frame 5 is provided with an annular upper disk 9 that extends horizontally inward by a predetermined width and is divided into two equal parts from the center. It is slidably inserted into the intermediate space 8 between the lower surface of the flange plate 11. Here, when wind pressure is applied to the roof and outer wall of the building during the typhoon festival, buoyancy is generated in the building, but it is inserted into the upper space 8 between the upper surface of the intermediate disc 6 and the lower surface of the upper flange plate 11. Supported by the upper disk 9. In particular, since the outer dimension of the intermediate disk 6 is larger than the inner diameter of the upper disk 9, it cannot be pulled out upward even if buoyancy occurs, and it is possible to reliably prevent lifting.
[0016]
In addition, since each of the upper discs 9 is bisected and provided on the upper portion of the outer frame 5, the components are mounted when the components in the rolling seismic isolation device 1 having replacement means are assembled. Prepare for internal inspections and repairs over time (see Figures 1 and 5).
[0017]
The lower conical surface tray 2 and the outer frame 5 are fixed to a common lower flange plate 10. The lower flange plate 10 is fixed to the foundation 40 with a plurality of anchor bolts 54 (see FIGS. 4 and 6).
[0018]
Further, a partition plate 30 having a predetermined width and a predetermined length is provided vertically at the center of the upper surface of the upper flange plate 11, and one side of the partition plate 30 is perpendicular to the partition plate 30 and has a predetermined width and a predetermined length at a plurality of locations. A plate 31 is provided vertically, a plate 31 having a predetermined width and a predetermined length is provided vertically on a side end portion of the upper surface of the flange plate 11 in parallel with the partition plate 30 on the opposite side of the partition pirate 30, and the partition plate A T-shaped base receiving plate 32 is provided horizontally at the upper ends of the upper plate 30 and the plate 31, and an upper space 33 formed between the upper surface of the upper plunge plate 11 and the lower surface of the base receiving plate 32 is provided. The base 51 placed on the upper surface of the base plate is jacked up, and the nut 52a at the tip of the bolt 52 inserted from above the base 51 toward the base receiving plate 32, and the lower Loosening by operating the nut 54a of the tip of Jipureto 10 side of the anchor bolt 54, it is intended to provide for exchange during servicing of the seismic isolation device 1 roll having exchange means. The base 51 is fixed to the base receiving plate 32 with a plurality of bolts 52 (see FIGS. 1 and 6).
[0019]
Further, the steel balls 4 are provided with small spheres 14 at a plurality of locations on the outer periphery of a lower ring 13 which is horizontally fixed to the outer side of the band 12 and a ring 12 which holds the steel ball 4 in a freely rolling manner. Welded and provided horizontally and detachably on the inside of the outer frame 5 through protrusions 15a vertically welded to a plurality of locations on the outer periphery of the small spherical body receiving disk 15 for mounting and inspecting and repairing the lower disk 13 and the like. It is to be prepared. And the upper part of the round bar 17 erected at a plurality of places on the upper surface of the lower flange plate 10 is inserted into the upper part of the holes 19 at a plurality of places provided on the lower surface of the annular disk 16, and the round bar is inserted. A coil spring 18 is welded to the upper surface of the lower flange plate 10 and the lower surface of the annular disk 16 so as to surround the periphery of the lower flange plate 17, and between the lower surface of the small spherical body receiving disk 15 and the upper surface of the annular disk 16. A lower space 20 is formed, and when the earthquake swings, the lower disk 13 slides into the lower space 20, while a semicircular groove 21 is formed at a predetermined position on the lower surface of the small spherical body receiving disk 15. Provided on the circumference, the small spheres 14 are press-fitted in the semicircular grooves 21 so as to be freely detachable, and the small spheres 14 are fitted in the semicircular grooves 21, thereby suppressing the rocking of the building due to daily wind pressure. be able to. (See FIGS. 1, 2 and 3).
[0020]
Further, pin receiving members 23 having pin holes 25a are fixed at a plurality of positions on the outer side of the outer frame 5, and pin holes 25 are formed at a plurality of positions on the surface of the upper flange plate 11 so as to meet the positions of the pin receiving members 23. When the rolling seismic isolation device 1 having an exchange means is installed by operating the pin 24 into the pin hole 25a of the pin receiving member 23 through the pin hole 25 so that the pin 24 can be removably inserted. The position due to the deviation from the object side is determined. And the pin 24 is tethered with the chain | strand 24a at several places on the upper surface of the upper flange plate 11 (refer FIG. 5, FIG. 7).
[0021]
And the rolling seismic isolation device 1 which has the drain hole 22 in the several places of the surface of the lower flange plate 10, and has an exchange means, after the water around a building draws when water floods under the floor by sudden heavy rain. It is for draining the water collected inside naturally (see FIG. 1).
[0022]
The entire surface of the outer and inner components of the rolling seismic isolation device 1 having the exchange means is galvanized to prepare for its service life.
[0023]
A short hair 26 is planted on the outer periphery of the upper surface of the upper disk 9 in the gap 27 between the lower surface of the upper flange plate 11 and the upper surface of the upper disk 9, and the inside of the rolling seismic isolation device 1 having an exchange means is provided. This is to prevent intrusion of dust or the like (see FIGS. 1, 2 and 3).
[0024]
【The invention's effect】
As described above, according to the first aspect of the present invention, a sphere is movably interposed between the lower conical surface tray placed on the base side and the upper tray placed on the upper structure. Since the foundation and the upper structure are separated, the earthquake motion can be prevented from being transmitted to the upper structure due to the rolling of the sphere when the earthquake occurs.
And, because the upper disk provided on the outer frame arranged on the foundation side is slidably inserted into the intermediate space between the upper surface of the intermediate disk provided on the upper tray upper surface and the upper flange lower surface, Even if the foundation and the building are separated and wind pressure is applied to the outside of the building and buoyancy occurs in the typhoon, the buoyancy can be supported by the upper disk, preventing the building from lifting it can. And the upper disk made detachable is prepared for the mounting of the components in the rolling seismic isolation device having the exchanging means, the inspection repair and the like.
[0025]
According to a second aspect of the present invention, a partition plate having a predetermined width and a predetermined length is provided vertically at the center of the upper surface of the upper flange, and a predetermined width is provided at a plurality of positions orthogonal to the partition plate on one side surface of the partition plate. A plate having a predetermined length and a predetermined length is provided vertically, and a plate having a predetermined width and a predetermined length is provided on a side end portion of the upper surface of the upper flange in parallel with the partition plate on the opposite side of the partition plate. The base plate placed on the upper surface of the base plate is jacked by providing a T-shaped base plate horizontally at each upper end of the base plate, and providing holes through which bolts are passed at predetermined locations on the base plate. And operate from the upper space to loosen the nut at the tip of the bolt, loosen the nut at the tip of the anchor bolt on the lower flange plate side, and remove and replace the rolling seismic isolation device with replacement means Can be.
[0026]
According to the third aspect of the present invention, a belt ring that holds the sphere so as to roll freely, a lower disk that is horizontally fixed to the outside of the belt ring, and an annular ring that is horizontally provided inside the outer frame. And a ring-shaped disk provided above the lower flange, and the lower circle is formed in a lower space formed between the upper and lower surfaces of the ball-shaped disk and the circular disk. By inserting the plate in a slidable manner, the sphere moves smoothly while being guided by the belt ring.
[0027]
According to the fourth aspect of the present invention, the outer flange is provided so as to be detachable horizontally via protrusions vertically welded to a plurality of locations on the outer periphery of the small spherical body receiving disk, The upper part of the round bar erected at a plurality of places is inserted into a plurality of holes provided on the lower surface of the annular disk, a coil spring is provided so as to surround the round bar, and the small spherical body receiving disk And a lower space formed between the upper and lower surfaces of the annular disk, and a small sphere is welded to a plurality of locations on the outer periphery of the lower disk that is horizontally fixed to the outside of the belt ring. A semicircular groove is provided in a predetermined place on the lower surface of the receiving disk, and the small sphere is press-fitted in the semicircular groove so that the small sphere can be detachably fitted. It is possible to suppress the swinging of the building due to the daily wind pressure applied to the etc.
[0028]
According to the fifth aspect of the present invention, pin receiving members having pin holes are provided at a plurality of positions on the outer upper side of the outer frame, and the positions of the pin receiving members are adjusted at a plurality of positions on the surface of the upper flange. When installing on the foundation of a rolling seismic isolation device having replacement means by providing a pin hole, manipulating the pin from the pin hole of the upper flange to the pin hole of the pin receiving member as necessary, and making it detachable When the typhoon is approaching based on weather information in advance and the pin is operated and inserted into the pin hole of the pin receiving member in advance, swinging of the building due to typhoon wind pressure can be prevented.
[0029]
According to the invention of claim 6, by providing drainage holes at a plurality of locations on the surface of the lower flange, when water is flooded under the floor due to sudden heavy rain or the like, after the water under the floor is drawn, Water accumulated in the rolling seismic isolation device having the exchange means can be drained naturally.
[0030]
According to the seventh aspect of the present invention, the rusting of the rolling seismic isolation device having the replacement means is obtained by galvanizing the entire surface of the outer and inner components of the rolling seismic isolation device having the replacement means. Can be prepared for the service life.
[0031]
According to the eighth aspect of the present invention, lubricating oil is applied to the contact surfaces of the lower conical surface receiving tray and the upper receiving tray with the spheres, so that the rolling surfaces of the spheres are lubricated during rocking during an earthquake. Sexuality improves.
According to the ninth aspect of the present invention, the rolling means has an exchange means by planting short hairs on the outer periphery of the upper surface of the upper disk in the gap between the lower surface of the upper flange plate and the upper surface of the upper disk. It is possible to prevent dust and the like from entering the seismic isolation device.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a rolling seismic isolation device having an exchanging means according to an embodiment of the present invention, corresponding to the cross sections along line AA in FIG. 4 and line BB in FIG. .
2 is a cross-sectional view of a state where a lower conical surface tray of the rolling seismic isolation device having the exchanging means of FIG. 1 has moved to the right in the figure.
3 is a cross-sectional view of a state where a lower conical surface tray of the rolling seismic isolation device having the exchanging means of FIG. 1 has moved to the left in the figure.
4 is a cross-sectional view taken along the line AA in FIG. 1. FIG.
5 is a cross-sectional view taken along line BB in FIG. 1. FIG.
FIG. 6 is a perspective view of a rolling seismic isolation device having replacement means.
FIG. 7 is an enlarged view of a main part of a pin receiving member of a rolling seismic isolation device having an exchanging means.
[Explanation of symbols]
1 Rolling seismic isolation device with exchange means, 40 foundation, 50 superstructure,
2 Lower conical tray 3 Upper tray 4 Steel ball 5 Outer frame 6 Middle disc
7 intermediate member, 8 intermediate space, 9 upper disk, 9a gap,
10 Lower flange plate, 11 Upper flange plate, 12 Band,
13 Lower disk, 14 Small sphere, 15 Small sphere receiving disk, 16 Annular disk, 16a Projection piece,
17 round bar, 18 coil spring, 19 holes, 20 lower space, 21 half-round groove,
22 drain hole, 23 pin receiving member, 24 pin, 25 pin hole, 26 hair, 27 gap,
30 partition plate, 31 plate, 32 base plate, 33 upper space, 53 holes,

Claims

An exchanging means comprising: a lower conical surface tray disposed on a foundation; an upper tray disposed on an upper structure; and a sphere that is rotatably mounted on a facing surface of the lower conical surface tray and the upper tray. In a rolling seismic isolation device having
A cylindrical outer frame corresponding to omnidirectional swing is provided so as to surround the lower conical surface saucer and the upper saucer disposed on the base side,
An intermediate disk is fixed to the upper surface of the upper tray, an upper flange is fixed to the upper surface of the intermediate disk via an intermediate member, and a circular shape is formed between the upper surface of the intermediate disk and the lower surface of the upper flange. Create an intermediate space,
On the other hand, an annular upper disk extending horizontally by a predetermined width inwardly on the upper part of the outer frame is provided so as to be detachable from the center, and the upper disk is removed to remove the composition member in the outer frame. Rolling having exchange means enabling assembly or maintenance inspection, wherein the upper disk is slidably inserted into an intermediate space between the upper surface of the intermediate disk and the lower surface of the upper flange Seismic isolation device.

A partition plate having a predetermined width and a predetermined length is provided vertically at the center of the upper surface of the upper flange, and a plate having a predetermined width and a predetermined length is provided vertically at a plurality of locations orthogonal to the partition plate on one side of the partition plate, the provided partition plate opposite to the predetermined width and a predetermined length slightly inboard position from the side edge to side edge portions of the upper surface of the upper flange parallel to the partition plate plate of vertically, the partition plate and provided the foundation receiving plate of T-shaped horizontally in each of the upper end of the plate, the rolling with a replacement unit of claim 1, characterized in that a hole into which a bolt to a predetermined plurality of positions of the base support plate Seismic isolation device.

A small ring is welded to a plurality of locations on the outer circumference of the lower ring, a lower disk horizontally fixed to the outer side of the band , An annular small sphere receiving disk having a semicircular groove on the entire lower surface thereof and an annular disk provided on the upper portion of the lower flange, the small sphere receiving disk and the annular disk The lower disk is slidably inserted into a circular lower space formed between the upper and lower surfaces, and the small sphere is removably inserted into the semicircular groove. Rolling seismic isolation device having the replacement means described in 1.

Inside the outer frame, a small sphere receiving disk is provided so as to be detachable horizontally through protrusions welded perpendicularly to a plurality of positions on the outer periphery of the small sphere receiving disk, and stands on a plurality of positions on the upper surface of the lower flange. The upper part of the round bar is inserted into a plurality of holes provided on the lower surface of the annular disk, a coil spring is provided so as to surround the round bar, and the lower disk slides in the lower space. 4. The replacement according to claim 3, wherein the movement of the small sphere is adjusted by pushing up the annular disk with an elastic force possessed by the coil spring on the lower surface of the annular disk. Rolling seismic isolation device with means.

Pin receiving members having pin holes are provided at a plurality of locations on the outside of the outer frame, pin holes are provided at a plurality of locations on the surface of the upper flange in accordance with the positions of the pin receiving members, and the pin holes of the upper flange are provided. The pin for fixing the sliding of the overlapping portion of the upper flange and the upper disk when the rolling seismic isolation device having the exchange means is installed by inserting the pin into the pin hole of the pin receiving member as necessary. 2. A rolling seismic isolation device having an exchanging means according to claim 1, characterized in that it is provided so as to be detachable.

4. The rolling seismic isolation device having replacement means according to claim 3 , wherein drainage holes are provided at a plurality of locations on the surface of the lower flange.

The replacement according to claim 1, wherein the entire surface of each of the inner and outer components of the rolling seismic isolation device having the replacement means is galvanized in order to prevent rust from occurring over time. Rolling seismic isolation device with means.

2. The rolling seismic isolation device having replacement means according to claim 1, wherein lubricating oil is applied to contact surfaces of the lower conical surface tray and the upper tray with the sphere.

2. The rolling-exempt having an exchanging means according to claim 1, wherein short and short hairs are planted on the outer upper surface of the upper disk in the gap between the lower surface of the upper flange and the upper surface of the upper disk. Seismic device.