Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-dimensional variable stiffness limited seismic isolation device with damping
The invention discloses a three-dimensional variable stiffness limited seismic isolation device with a damping. The device comprises a bearing platform. The bottom of the bearing platform is connectedwith a device limit plate a through a plurality of steel springs. The device limit plate a is connected with the bottom of the bearing platform through a limit mechanism. The steel springs sleeve theouter side wall of the limit mechanism. The bottom of the device limit plate a is connected with a device limit plate b through a supporting cylinder. A three-dimensional variable stiffness seismic reduction device is composed of three parts of a seismic reduction device in z-axis direction, a seismic reduction device in X-axis direction and a seismic reduction device in Y-axis direction, and canbe used in three-dimensional seismic reduction and isolation. The ground motion caused by the earthquake can compress a spring element of the device and produce the mechanical characteristics of variable stiffness. The force opposite to the motion direction is provided at the initial stage, and the force consistent with the motion direction is provided after reaching a certain distance. Thereby,the positive stiffness is provided to limit the displacement of an isolation layer in the case of small earthquake, and negative stiffness is provided in the case of medium and large earthquakes to achieve the isolation effect.
本发明公开了一种附带阻尼的三维变刚度限位隔震装置，包括承台，所述承台的底部通过多个钢弹簧连接有装置限位板a,所述装置限位板a通过限位机构与承台的底部连接，所述钢弹簧套设在限位机构的外侧壁上，所述装置限位板a的底部通过支撑圆柱连接有装置限位板b。本发明中，该三维变刚度减震装置由Z轴方向的减震装置、X轴方向的减震装置、Y轴方向的减震装置三个部分的减震组成，可以运用于三维减隔震中，地震引起的地面运动会使装置的弹簧元件压缩，产生变刚度的力学特性，起始阶段提供与运动方向相反的力，到达一定距离后提供与运动方向一致的力，从而实现小震时提供正刚度限制隔震层位移，中震、大震时提供负刚度实现隔震效果。
Three-dimensional variable stiffness limited seismic isolation device with damping
The invention discloses a three-dimensional variable stiffness limited seismic isolation device with a damping. The device comprises a bearing platform. The bottom of the bearing platform is connectedwith a device limit plate a through a plurality of steel springs. The device limit plate a is connected with the bottom of the bearing platform through a limit mechanism. The steel springs sleeve theouter side wall of the limit mechanism. The bottom of the device limit plate a is connected with a device limit plate b through a supporting cylinder. A three-dimensional variable stiffness seismic reduction device is composed of three parts of a seismic reduction device in z-axis direction, a seismic reduction device in X-axis direction and a seismic reduction device in Y-axis direction, and canbe used in three-dimensional seismic reduction and isolation. The ground motion caused by the earthquake can compress a spring element of the device and produce the mechanical characteristics of variable stiffness. The force opposite to the motion direction is provided at the initial stage, and the force consistent with the motion direction is provided after reaching a certain distance. Thereby,the positive stiffness is provided to limit the displacement of an isolation layer in the case of small earthquake, and negative stiffness is provided in the case of medium and large earthquakes to achieve the isolation effect.
本发明公开了一种附带阻尼的三维变刚度限位隔震装置，包括承台，所述承台的底部通过多个钢弹簧连接有装置限位板a,所述装置限位板a通过限位机构与承台的底部连接，所述钢弹簧套设在限位机构的外侧壁上，所述装置限位板a的底部通过支撑圆柱连接有装置限位板b。本发明中，该三维变刚度减震装置由Z轴方向的减震装置、X轴方向的减震装置、Y轴方向的减震装置三个部分的减震组成，可以运用于三维减隔震中，地震引起的地面运动会使装置的弹簧元件压缩，产生变刚度的力学特性，起始阶段提供与运动方向相反的力，到达一定距离后提供与运动方向一致的力，从而实现小震时提供正刚度限制隔震层位移，中震、大震时提供负刚度实现隔震效果。
Three-dimensional variable stiffness limited seismic isolation device with damping
一种附带阻尼的三维变刚度限位隔震装置
LIU TAO (Autor:in) / LIU ZUQING (Autor:in) / GAO YANG (Autor:in) / WANG CHUN (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
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