Shear wall system with hysteretic inertia

Abstract

The invention belongs to the field of civil engineering and energy infrastructure and provides a shear wall system with a hysteretic inerter, comprising a shear wall structure, a hysteretic inerter structure, and a mounting base. The hysteretic inerter structure includes a plurality of groups of hysteretic energy-dissipating support units and a plurality of groups of viscous self-resetting inerterunits. A double self-resetting mechanism and a multiple energy-absorbing energy-dissipating means are established; structural vibrational energy is absorbed and dissipated via hysteretic shear platesand the viscous inerter units; rotational effect of a rocking shear wall helps decrease horizontal action that a rocking device bears; the inerter units enable system inertial characteristics to be effectively adjusted and overall deformation of the shear wall to be effectively controlled at the premise of not improving deformation rigidity of the shear wall; a rocking shear wall vibration-damping energy-dissipating system suitable for effective structural multimodal vibration control is provided; multiple aseismic lines are provided; the shear wall system herein has the advantages of energy-dissipating synergy, good robustness, good convenience of post-quake restoration and the like, and is well worthy of popularization and application.

Description

technical field [0001] The invention belongs to the technical field of energy dissipation and shock absorption of civil engineering structures, and in particular relates to a shear wall system with hysteretic inertia. Background technique [0002] Shear wall, also called aseismic wall, is an important anti-lateral component, which can effectively improve the ability of building structures to resist earthquakes. However, the shear wall itself has high rigidity, but its ductility is small, and it is prone to damage while bearing lateral force in an earthquake, and the repair cost is high. Therefore, the rocking structure in the energy dissipation and shock absorption technology is introduced into the shear wall structure system. The bottom of the rocking shear wall is hinged with the structure, and energy dissipation devices are added on both sides, which improves the deformation capacity of the shear wall and reduces the damage of the wall. However, the rocking structure ca...

AI Technical Summary

Problems solved by technology

However, the rocking structure cannot increase its energy dissipation capacity, and the deformation is relatively large. The self-resetting mechanism only provides restoring force, and cannot effectively consume energy. It is far from enough as a line of anti-seismic defense.

In addition, the rocking shear wall has a large mass, which will generate a large inertial force during an earthquake, and the hinged device at the bottom is prone to damage, and the large inertial force puts forward higher requirements on the lateral bearing capacity of the main structure

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