A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BASE ISOLATION SYSTEM USING PNEUMATIC LEVITATION MECHANISM
PROBLEM TO BE SOLVED: To provide a base isolation system capable of easily switching damper performance depending on presence or absence of seismic movement and being easily applied to a skyscraper building having a large aspect ratio.SOLUTION: A base isolation system comprises: an isolator 3 which is arranged between a substructure 1 and a superstructure 2 and allows the superstructure 2 to be displaced in a horizontal direction with respect to the substructure 1; a damper 4 which has a friction member 41 installed between the substructure 1 and the superstructure 2 and pressed down by a sliding plate 40 and a vertical load acting on the sliding plate 40 due to the superstructure 2 and generates reaction force against horizontal displacement of the superstructure 2; a sensor 5 which detects seismic movement; and an axial force alleviation device 6 which is activated in accordance with output of the sensor 5 and controls pressing force of the sliding plate 40 on the friction member 41 by forming a pressure layer of pressurized fluid between the substructure 1 and the superstructure 2.
【課題】地震動の発生の有無に応じてダンパーの性能を容易に切り替えることが可能であり、アスペクト比の大きな超高層建物に対しても容易に適用することが可能な免震システムを提供する。【解決手段】下部構造物１と上部構造物２との間に配置され、前記下部構造物１に対する上部構造物２の水平方向変位を許容するアイソレータ３と、前記下部構造物１と上部構造物２との間に設けられると共に、摺接面４０及び当該摺接面４０に対して前記上部構造物２から作用する鉛直方向荷重によって押し付けられる摩擦部材４１を有し、前記上部構造物２の水平方向変位に対して反力を及ぼすダンパー４と、地震動を検知するセンサー５と、前記センサー５の出力に応じて動作し、前記下部構造物１と前記上部構造物２との間に加圧流体の圧力層を形成して前記摺接面４０に対する前記摩擦部材４１の押圧力を制御する軸力軽減装置６と、を備えている。【選択図】図１
BASE ISOLATION SYSTEM USING PNEUMATIC LEVITATION MECHANISM
PROBLEM TO BE SOLVED: To provide a base isolation system capable of easily switching damper performance depending on presence or absence of seismic movement and being easily applied to a skyscraper building having a large aspect ratio.SOLUTION: A base isolation system comprises: an isolator 3 which is arranged between a substructure 1 and a superstructure 2 and allows the superstructure 2 to be displaced in a horizontal direction with respect to the substructure 1; a damper 4 which has a friction member 41 installed between the substructure 1 and the superstructure 2 and pressed down by a sliding plate 40 and a vertical load acting on the sliding plate 40 due to the superstructure 2 and generates reaction force against horizontal displacement of the superstructure 2; a sensor 5 which detects seismic movement; and an axial force alleviation device 6 which is activated in accordance with output of the sensor 5 and controls pressing force of the sliding plate 40 on the friction member 41 by forming a pressure layer of pressurized fluid between the substructure 1 and the superstructure 2.
【課題】地震動の発生の有無に応じてダンパーの性能を容易に切り替えることが可能であり、アスペクト比の大きな超高層建物に対しても容易に適用することが可能な免震システムを提供する。【解決手段】下部構造物１と上部構造物２との間に配置され、前記下部構造物１に対する上部構造物２の水平方向変位を許容するアイソレータ３と、前記下部構造物１と上部構造物２との間に設けられると共に、摺接面４０及び当該摺接面４０に対して前記上部構造物２から作用する鉛直方向荷重によって押し付けられる摩擦部材４１を有し、前記上部構造物２の水平方向変位に対して反力を及ぼすダンパー４と、地震動を検知するセンサー５と、前記センサー５の出力に応じて動作し、前記下部構造物１と前記上部構造物２との間に加圧流体の圧力層を形成して前記摺接面４０に対する前記摩擦部材４１の押圧力を制御する軸力軽減装置６と、を備えている。【選択図】図１
BASE ISOLATION SYSTEM USING PNEUMATIC LEVITATION MECHANISM
空気圧浮上機構を利用した免震システム
KIDA HIDENORI (author) / NAKAMINAMI SHIGEKI (author) / TANAKA HISAYA (author)
2015-12-10
Patent
Electronic Resource
Japanese
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