Friction pendulum type inerter shock isolation system

A seismic isolation system and friction pendulum technology, applied in the direction of earthquake resistance, building types, building components, etc., can solve the problems of low frictional energy consumption efficiency, insufficient self-resetting ability, excessive deformation of the seismic isolation layer, etc., to reduce energy input, The effect of saving reserved space for deformation joints and improving the level of dynamic response

Inactive Publication Date: 2019-02-01
TONGJI UNIV
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Problems solved by technology

However, such devices often have problems such as low frictional energy consumption efficiency (especially when the deformation of the seismi

Method used

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  • Friction pendulum type inerter shock isolation system

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Embodiment

[0027] Such as figure 1 As shown, a friction pendulum type inertial isolation system includes a friction pendulum unit, an installation unit, and an inertial subsystem unit, where the inertial subsystem unit is used for energy absorption and dissipation of the isolation system and the upper part is isolated Vibration control of structures.

[0028] In the present invention, the installation unit includes an upper connection plate 12 and a lower connection plate 11 ; the friction pendulum unit and the inertial subsystem unit are installed between the upper connection plate 12 and the lower connection plate 11 .

[0029] As an example and not limitation, multiple sets of inertial subsystem units may be provided, and multiple sets of inertial subsystem units may be respectively symmetrically arranged on the left and right sides of the friction pendulum unit.

[0030] Further, the friction pendulum unit includes an upper sliding body 1 , a friction sliding block 2 and a lower sli...

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Abstract

The invention relates to a friction pendulum type inerter shock isolation system used in the field of civil engineering and energy infrastructures. The friction pendulum type inerter shock isolation system comprises a friction pendulum unit, an inerter subsystem unit and an installation unit. According to the friction pendulum type inerter shock isolation system, an energy disposal mechanism of the system is established for a structural system subjected to an external action; firstly, external energy input is reduced by isolating the structure from the ground through the friction pendulum unit; secondly, energy is stored in the form of kinetic energy through the rotation of an inerter in the inerter subsystem unit; and the energy is dissipated through a friction pendulum friction sliding mechanism and an eddy current unit. The friction pendulum type inerter shock isolation system utilizes the arrangement of the inerter subsystem unit, the energy absorption efficiency and energy consumption efficiency of the friction pendulum type inerter shock isolation system are improved while the physical quality of the shock isolation system is not significantly increased, the displacement of ashock isolation layer can be effectively controlled, and the inertial characteristics of an upper structure can further be effectively adjusted, so that the control over high-order vibration of the structure is realized, and the dynamic response of the structure is significantly reduced. The friction pendulum type inerter shock isolation system has the characteristics of high energy consumption efficiency, high robustness and the like, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of energy consumption reduction and shock isolation of civil engineering structures, and in particular relates to a friction pendulum type inertial shock absorption system. Background technique [0002] Seismic isolation technology installs seismic isolation devices at the base or a certain position of buildings and structures to isolate or dissipate seismic energy, so as to avoid or reduce the transmission of seismic energy to the upper structure, reduce the vibration response of the structure, and make the building only slightly move. and deformation, so as to ensure the safety of buildings during earthquakes. The friction pendulum bearing is a common type of shock-absorbing and isolating bearing based on dry friction sliding. Under external action, the friction pendulum bearing uses frictional sliding to isolate the upper structure from the ground and prolong the life of the friction pendulum seismic-isol...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021E04H9/023
Inventor 张瑞甫赵志鹏孟家瑶刘浩洋
Owner TONGJI UNIV
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