Vertical spacing -type lead shearing three-dimensional vibration isolation device

Abstract

The invention relates to a vertical limit lead shear three-dimensional vibration isolation device which belongs to the structural vibration control and vibration control field. The invention designs the Belleville spring external guide part in the vertical vibration isolation device contacted with an external sealing steel plate to be a clamp plate lead shear damper; the three-dimensional vibration isolation device generates vertical vibration on the upper connecting plate under the excitation of the vertical loading; the vibration drives the lead block to have shearing deformation, so as to provide vertical damping force for the three-dimensional vibration isolation device. A vertical limiter is arranged between the external guide rod and the external sealing steel plate to control the rebound of the instantaneous Belleville spring; the vertical limiter also has the clamping plate effect, applies the horizontal pre-pressing force on the structure and avoids the extruding loss after the yield of the lead. The vertical limit lead shear three-dimensional vibration isolation device has the advantages of simple structure, stable performance, being applicable to the second vibration of the building induced by the traffic and any occasion that the three-dimensional vibration isolation device in the prior art is applicable to for isolating the ground vibration, reducing the power reaction of the structure and the device.

Description

technical field [0001] The invention relates to a vertical limit type lead shear three-dimensional vibration isolation device. The device is composed of a lead core laminated rubber support, a disc spring, a lead damper and a vertical limiter, and has a vertical limiter. It is mainly used for foundation vibration isolation of buildings such as houses and bridges, and can also be used for equipment vibration isolation. The invention belongs to the field of structure isolation control and vibration control. Background technique [0002] The seismic isolation device "isolates" the superstructure of the building from the foundation, changes the dynamic characteristics of the superstructure, and can greatly reduce the dynamic effect of the earthquake on the superstructure, thereby achieving the shock absorption effect of "overcoming rigidity with softness". There are many studies on vibration isolation devices for building foundations, but they mainly focus on the horizontal vib...

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Problems solved by technology

[0003] In order to overcome the situation that the existing three-dimensional vibration isolation device cannot effectively provide vertical damping, the position of the damper is unreasonable, and the rebound of the disc spring causes the actual effect of the vibration isolation device, the present invention provides a new type of three-dimensional vibration isolation device. The three-dimensional vibration isolation device can not only effectively provide vertical damping, but also facilitate installation, inspection and maintenance, and can control vertical displacement to ensure the normal operation of the device

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