A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ASEISMIC BASE ISOLATION METHOD AND SEISMIC ISOLATOR FOR STRUCTURE AND BOLT FIXING LAMINATED RUBBER USED AT SEISMIC ISOLATOR
PROBLEM TO BE SOLVED: To prevent a tension force from being transmitted to aseismic base isolation laminated rubber by a simple structure.SOLUTION: There are provided a cylindrical laminated rubber 32 in which an inner steel pipe 30, a thin-wall cylindrical rubber sheet 3202 and a thin-wall steel pipe 3204 are alternatively laminated and an outer steel pipe 34 attached to an outer circumferential surface of the cylindrical laminated rubber 32. An inner space of the inner steel pipe 30 is provided with a bolt fixing laminated rubber 20 having a bolt insertion hole 26 to cause a shant part of an anchor bolt 24 to be passed through it. Under a state in which a lower flange plate 16 is attached to a lower structure 12 through the anchor bolt 24, the outer steel pipe 34 is connected in such a way that it may be integrally displaced in respect to a direction where it is moved away from the lower structure 12 in respect to the lower flange plate 16. The inner steel pipe 30 is connected in such a way that it may not be displaced in a direction perpendicular to the anchor bolt 24 and the cylindrical laminated rubber 32 can be sheared and deformed in its axial direction. There is provided a restricting means 22 for restricting an upper limit value of an amount of upward deformation of the cylindrical laminated rubber 32.SELECTED DRAWING: Figure 1
【課題】簡単な構造で免震用積層ゴムに引っ張り力が伝達されないようにすること。【解決手段】内側鋼管３０と、薄肉の筒状のゴムシート３２０２と薄肉の鋼管３２０４とが交互に積層された筒状積層ゴム３２と、筒状積層ゴム３２の外周面に取着された外側鋼管３４とを備え、内側鋼管３０の内側の空間はアンカーボルト２４の軸部を挿通させるボルト挿通孔２６とされたボルト取り付け用積層ゴム２０が設けられている。アンカーボルト２４を介して下部フランジプレート１６が下部構造体１２に取着された状態で、外側鋼管３４は下部フランジプレート１６に対して下部構造体１２から離れる方向に対して一体に変位するように結合され、内側鋼管３０はアンカーボルト２４に対して鉛直方向に変位不能に結合され、筒状積層ゴム３２はその軸方向にせん断変形可能な状態となっている。筒状積層ゴム３２の上方ヘの変形量の上限を規制する規制手段２２が設けられている。【選択図】図１
ASEISMIC BASE ISOLATION METHOD AND SEISMIC ISOLATOR FOR STRUCTURE AND BOLT FIXING LAMINATED RUBBER USED AT SEISMIC ISOLATOR
PROBLEM TO BE SOLVED: To prevent a tension force from being transmitted to aseismic base isolation laminated rubber by a simple structure.SOLUTION: There are provided a cylindrical laminated rubber 32 in which an inner steel pipe 30, a thin-wall cylindrical rubber sheet 3202 and a thin-wall steel pipe 3204 are alternatively laminated and an outer steel pipe 34 attached to an outer circumferential surface of the cylindrical laminated rubber 32. An inner space of the inner steel pipe 30 is provided with a bolt fixing laminated rubber 20 having a bolt insertion hole 26 to cause a shant part of an anchor bolt 24 to be passed through it. Under a state in which a lower flange plate 16 is attached to a lower structure 12 through the anchor bolt 24, the outer steel pipe 34 is connected in such a way that it may be integrally displaced in respect to a direction where it is moved away from the lower structure 12 in respect to the lower flange plate 16. The inner steel pipe 30 is connected in such a way that it may not be displaced in a direction perpendicular to the anchor bolt 24 and the cylindrical laminated rubber 32 can be sheared and deformed in its axial direction. There is provided a restricting means 22 for restricting an upper limit value of an amount of upward deformation of the cylindrical laminated rubber 32.SELECTED DRAWING: Figure 1
【課題】簡単な構造で免震用積層ゴムに引っ張り力が伝達されないようにすること。【解決手段】内側鋼管３０と、薄肉の筒状のゴムシート３２０２と薄肉の鋼管３２０４とが交互に積層された筒状積層ゴム３２と、筒状積層ゴム３２の外周面に取着された外側鋼管３４とを備え、内側鋼管３０の内側の空間はアンカーボルト２４の軸部を挿通させるボルト挿通孔２６とされたボルト取り付け用積層ゴム２０が設けられている。アンカーボルト２４を介して下部フランジプレート１６が下部構造体１２に取着された状態で、外側鋼管３４は下部フランジプレート１６に対して下部構造体１２から離れる方向に対して一体に変位するように結合され、内側鋼管３０はアンカーボルト２４に対して鉛直方向に変位不能に結合され、筒状積層ゴム３２はその軸方向にせん断変形可能な状態となっている。筒状積層ゴム３２の上方ヘの変形量の上限を規制する規制手段２２が設けられている。【選択図】図１
ASEISMIC BASE ISOLATION METHOD AND SEISMIC ISOLATOR FOR STRUCTURE AND BOLT FIXING LAMINATED RUBBER USED AT SEISMIC ISOLATOR
構造体の免震方法および免震装置ならびに免震装置に用いるボルト取り付け用積層ゴム
NAKAMURA YOSHIYA (author) / SASAKI SATOSHI (author) / SASAKI YASUHITO (author) / TAHARA KENICHI (author) / OHARA IZUMI (author)
2016-04-04
Patent
Electronic Resource
Japanese
IPC:
F16F
SPRINGS
,
Federn
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
/
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
| European Patent Office | 2016