A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LAMINATED RUBBER BEARING
PROBLEM TO BE SOLVED: To suppress degradation of energy absorption performance in earthquake of long period while keeping performance of a laminated rubber bearing in normal earthquake.SOLUTION: In a laminated rubber bearing 1 including a laminated rubber body 6 having at least one through hole vertically penetrating through a laminated rubber portion configured by alternately laminating rubber layers 2 and reinforcement plates 3, and at least one attenuator plug (lead plug) 9 enclosed in the through hole, the attenuator plug divided into a plurality of pieces in a vertical direction, is enclosed in the through hole, and each of outer peripheral faces of the attenuator plug and each of inner peripheral faces of the reinforcement plates are disposed while kept into contact with each other or close to each other. T≥26×T×Dis satisfied when Tis the total thickness of the reinforcement plates, Tis the total thickness of the rubber layers, and D is a diameter of the laminated rubber body in a case of the circular shape in a top view, a length of one side in a case of the square shape in the top view, and a length of a short side in a case of the rectangular shape in the top view.SELECTED DRAWING: Figure 1
【課題】通常の地震時における積層ゴム支承の性能を維持しながら、長時間地震時においてエネルギー吸収性能の低下を抑制する。【解決手段】ゴム層２と補強板３とを交互に積層した積層ゴム部に上下方向に貫通する少なくとも１つの貫通孔を有する積層ゴム体６と、貫通孔に封入された少なくとも１本の減衰体プラグ（鉛プラグ）９とを備える積層ゴム支承１であって、貫通孔に鉛直方向に複数に分割された減衰体プラグが封入され、減衰体プラグの各々の外周面と、補強板の各々の内周面とが当接又は近接して配置される。補強板の総厚さをＴＳ、ゴム層の総厚さをＴＲ、積層ゴム体が上面視円形の場合には直径、上面視正方形の場合には一辺の長さ、又は上面視長方形の場合には短辺の長さをＤとした場合に、ＴＳ≧２６×ＴＲ×Ｄ−０．５とすることができる。【選択図】図１
LAMINATED RUBBER BEARING
PROBLEM TO BE SOLVED: To suppress degradation of energy absorption performance in earthquake of long period while keeping performance of a laminated rubber bearing in normal earthquake.SOLUTION: In a laminated rubber bearing 1 including a laminated rubber body 6 having at least one through hole vertically penetrating through a laminated rubber portion configured by alternately laminating rubber layers 2 and reinforcement plates 3, and at least one attenuator plug (lead plug) 9 enclosed in the through hole, the attenuator plug divided into a plurality of pieces in a vertical direction, is enclosed in the through hole, and each of outer peripheral faces of the attenuator plug and each of inner peripheral faces of the reinforcement plates are disposed while kept into contact with each other or close to each other. T≥26×T×Dis satisfied when Tis the total thickness of the reinforcement plates, Tis the total thickness of the rubber layers, and D is a diameter of the laminated rubber body in a case of the circular shape in a top view, a length of one side in a case of the square shape in the top view, and a length of a short side in a case of the rectangular shape in the top view.SELECTED DRAWING: Figure 1
【課題】通常の地震時における積層ゴム支承の性能を維持しながら、長時間地震時においてエネルギー吸収性能の低下を抑制する。【解決手段】ゴム層２と補強板３とを交互に積層した積層ゴム部に上下方向に貫通する少なくとも１つの貫通孔を有する積層ゴム体６と、貫通孔に封入された少なくとも１本の減衰体プラグ（鉛プラグ）９とを備える積層ゴム支承１であって、貫通孔に鉛直方向に複数に分割された減衰体プラグが封入され、減衰体プラグの各々の外周面と、補強板の各々の内周面とが当接又は近接して配置される。補強板の総厚さをＴＳ、ゴム層の総厚さをＴＲ、積層ゴム体が上面視円形の場合には直径、上面視正方形の場合には一辺の長さ、又は上面視長方形の場合には短辺の長さをＤとした場合に、ＴＳ≧２６×ＴＲ×Ｄ−０．５とすることができる。【選択図】図１
LAMINATED RUBBER BEARING
積層ゴム支承
WAKE TOMOTAKA (author) / KOCHIYAMA OSAMU (author) / NAKAMURA TAKAHITO (author)
2018-01-25
Patent
Electronic Resource
Japanese
| European Patent Office | 2020