Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VIBRATION REDUCTION DEVICE AND BASE ISOLATION STRUCTURE
PROBLEM TO BE SOLVED: To provide a vibration reduction device and a base isolation structure having the vibration reduction device in which an attenuation coefficient can be increased at a displacement exceeding its assumption, an axial force can be increased up to a relief load, the axial force can be reduced rapidly when the displacement is returned and increasing of an acceleration near the maximum displacement can be restricted.SOLUTION: This invention relates to a vibration reduction device A for reducing a relative vibration between the two members showing relative vibration. The vibration reduction device comprises: a cylinder 1; a piston 4 for defining the inside part of the cylinder 1 into the first partition chamber 2 and the second partition chamber 3; a relief valve 9; a piston rod 5 having one end connected to the piston 4 and the other end 5a connected to the other member; and the first connecting pipe 15 and the second connecting pipe 16 for communicating with the first partition chamber 2 and the second partition chamber 3. In addition, working fluid R is filled in the first partition chamber 3, the first connecting pipe 15 and the second connecting pipe. Each of the first connecting pipe 15 and the second connecting pipe 16 is provided with an orifice 17 and a pressure control valve 18.
【課題】想定を超えた変位で減衰係数増大させてリリーフ荷重まで軸力を増大させ、変位が復帰する際に速やかに軸力を低減させて最大変位近傍の加速度増大を抑制することを可能にする振動低減装置及びこれを備えた免震構造物を提供する。【解決手段】相対振動する二部材の間の相対振動を低減させるための振動低減装置Ａであって、シリンダー１と、シリンダー１の内部を第１隔室２と第２隔室３に区画するピストン４と、リリーフ弁９と、ピストン４に一端を接続し、他端５ａを他方の部材に接続して配設されるピストンロッド５とを備え、且つ、第１隔室２と第２隔室３を連通させる第１連結管１５及び第２連結管１６を備える。また、第１隔室２と第２隔室３と１連結管１５と第２連結管１６に作動流体Ｒを充填して構成するとともに、第１連結管１５と第２連結管１６にそれぞれ、オリフィス１７と圧力制御弁１８を設けて構成する。【選択図】図２
VIBRATION REDUCTION DEVICE AND BASE ISOLATION STRUCTURE
PROBLEM TO BE SOLVED: To provide a vibration reduction device and a base isolation structure having the vibration reduction device in which an attenuation coefficient can be increased at a displacement exceeding its assumption, an axial force can be increased up to a relief load, the axial force can be reduced rapidly when the displacement is returned and increasing of an acceleration near the maximum displacement can be restricted.SOLUTION: This invention relates to a vibration reduction device A for reducing a relative vibration between the two members showing relative vibration. The vibration reduction device comprises: a cylinder 1; a piston 4 for defining the inside part of the cylinder 1 into the first partition chamber 2 and the second partition chamber 3; a relief valve 9; a piston rod 5 having one end connected to the piston 4 and the other end 5a connected to the other member; and the first connecting pipe 15 and the second connecting pipe 16 for communicating with the first partition chamber 2 and the second partition chamber 3. In addition, working fluid R is filled in the first partition chamber 3, the first connecting pipe 15 and the second connecting pipe. Each of the first connecting pipe 15 and the second connecting pipe 16 is provided with an orifice 17 and a pressure control valve 18.
【課題】想定を超えた変位で減衰係数増大させてリリーフ荷重まで軸力を増大させ、変位が復帰する際に速やかに軸力を低減させて最大変位近傍の加速度増大を抑制することを可能にする振動低減装置及びこれを備えた免震構造物を提供する。【解決手段】相対振動する二部材の間の相対振動を低減させるための振動低減装置Ａであって、シリンダー１と、シリンダー１の内部を第１隔室２と第２隔室３に区画するピストン４と、リリーフ弁９と、ピストン４に一端を接続し、他端５ａを他方の部材に接続して配設されるピストンロッド５とを備え、且つ、第１隔室２と第２隔室３を連通させる第１連結管１５及び第２連結管１６を備える。また、第１隔室２と第２隔室３と１連結管１５と第２連結管１６に作動流体Ｒを充填して構成するとともに、第１連結管１５と第２連結管１６にそれぞれ、オリフィス１７と圧力制御弁１８を設けて構成する。【選択図】図２
VIBRATION REDUCTION DEVICE AND BASE ISOLATION STRUCTURE
振動低減装置及び免震構造物
ISODA KAZUHIKO (Autor:in)
16.11.2015
Patent
Elektronische Ressource
Japanisch
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