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Multi-dimensional seismic isolation support based on vertical variable stiffness and horizontal self-return
The invention relates to a multi-dimensional seismic isolation support based on vertical variable stiffness and horizontal self-return. The support is mainly composed of a sleeve component, a lower connecting plate, a side coaming, concrete, an upper connecting plate and SMA self-return assemblies; under strong vertical seismic excitation, an inner core is bent, and the vertical rigidity of the support is greatly reduced so as to realize seismic isolation; in the horizontal direction, lantern rings are welded to the upper portion of the inner core, the lantern rings are connected through the SMA self-return assemblies, the lantern rings are connected with the side coaming through the SMA self-return assemblies, a structural seismic isolation layer can laterally move to a certain degree toachieve horizontal seismic isolation, and returning can be achieved through the SMA self-return assemblies after lateral movement; and a sensor can be arranged at the position where the inner core possibly makes contact with an outer pipe so as to monitor the working state of the support. Compared with the prior art, the support realizes multi-dimensional seismic isolation through the rigidity change after a pressing rod is bent and the characteristic of self-return after horizontal lateral movement, is suitable for structural multi-dimensional seismic isolation with a vertical vibration control function, and has the characteristics that the structure is simple, the cost is relatively low, and the reliability is relatively high.
本发明涉及基于竖向变刚度及水平自复位的多维隔震支座，主要由套筒构件、下连接板、侧围板、混凝土、上连接板、SMA自复位组件组成。强烈竖向地震激励下，内核发生屈曲，其竖向刚度将大幅度减小以实现隔震；水平方向，内核上部焊接套环，各套环间及套环与侧围板通过SMA自复位组件连接，结构隔震层可发生一定侧移实现水平隔震，并且在发生侧移后可通过SMA自复位组件实现复位。内核与外管可能发生接触的位置可布置传感器，以监测支座的工作状态。与现有技术相比，本发明利用压杆屈曲后的刚度变化及水平发生侧移后能自复位特性实现多维隔震，适用于竖向振动起控制作用的结构多维隔震中，并且具有构造简单、成本较低及可靠度较高的特点。
Multi-dimensional seismic isolation support based on vertical variable stiffness and horizontal self-return
The invention relates to a multi-dimensional seismic isolation support based on vertical variable stiffness and horizontal self-return. The support is mainly composed of a sleeve component, a lower connecting plate, a side coaming, concrete, an upper connecting plate and SMA self-return assemblies; under strong vertical seismic excitation, an inner core is bent, and the vertical rigidity of the support is greatly reduced so as to realize seismic isolation; in the horizontal direction, lantern rings are welded to the upper portion of the inner core, the lantern rings are connected through the SMA self-return assemblies, the lantern rings are connected with the side coaming through the SMA self-return assemblies, a structural seismic isolation layer can laterally move to a certain degree toachieve horizontal seismic isolation, and returning can be achieved through the SMA self-return assemblies after lateral movement; and a sensor can be arranged at the position where the inner core possibly makes contact with an outer pipe so as to monitor the working state of the support. Compared with the prior art, the support realizes multi-dimensional seismic isolation through the rigidity change after a pressing rod is bent and the characteristic of self-return after horizontal lateral movement, is suitable for structural multi-dimensional seismic isolation with a vertical vibration control function, and has the characteristics that the structure is simple, the cost is relatively low, and the reliability is relatively high.
本发明涉及基于竖向变刚度及水平自复位的多维隔震支座，主要由套筒构件、下连接板、侧围板、混凝土、上连接板、SMA自复位组件组成。强烈竖向地震激励下，内核发生屈曲，其竖向刚度将大幅度减小以实现隔震；水平方向，内核上部焊接套环，各套环间及套环与侧围板通过SMA自复位组件连接，结构隔震层可发生一定侧移实现水平隔震，并且在发生侧移后可通过SMA自复位组件实现复位。内核与外管可能发生接触的位置可布置传感器，以监测支座的工作状态。与现有技术相比，本发明利用压杆屈曲后的刚度变化及水平发生侧移后能自复位特性实现多维隔震，适用于竖向振动起控制作用的结构多维隔震中，并且具有构造简单、成本较低及可靠度较高的特点。
Multi-dimensional seismic isolation support based on vertical variable stiffness and horizontal self-return
基于竖向变刚度及水平自复位的多维隔震支座
ZENG MIAO (author) / DENG CHANGGEN (author)
2020-11-10
Patent
Electronic Resource
Chinese
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