A Hybrid Damping Isolator Applicable to Bridge Vibration
A hybrid damping and vibration isolator technology, applied in bridges, bridge construction, bridge parts, etc., can solve problems such as backwardness and difficulty in realizing rapid recovery of large impacts, and achieve long service life and improved damping force
Active Publication Date: 2020-02-14
CHANGZHOU UNIV
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Problems solved by technology
Vibration isolation in bridge design is usually to enable the bridge to be flexibly supported in the horizontal direction and install dampers in the vertical direction. At present, the bridge dampers in my country are relatively backward, and it is difficult to achieve rapid recovery of large impacts
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[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] see figure 1 As shown, a hybrid damping vibration isolator suitable for bridge vibration of the present invention includes a concrete container 1, a graded damping layer installed inside the concrete container 1, a load-bearing module installed on the graded damping layer, and a connecting bearing Module with metal helical springs 4 at the bottom of the concrete container 1 .
[0016] see figure 1 As shown, the graded damping layer includes damping layer A31, damping layer B32 and damping layer C33 from top to bottom; damping layer A31 is filled with metal ball particles A311, damping layer B32 is filled with metal ball particles B321, and damping layer C33 is filled with metal balls Particle C331.
[0017] see figure 1 As shown, the thickness ratio of damping layer A31, damping layer B32 and damping layer C33 is 2:3:5; the...
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The invention discloses a hybrid damping vibration isolator suitable for bridge vibration, belonging to the field of bridge vibration isolation. The hybrid damping vibration isolator comprises a concrete container, a hierarchical damping layer arranged inside the concrete container, a bearing module arranged on the graded damping layer, and a metal coil spring connected with the bearing module andthe bottom of the concrete container. The hierarchical damping layer comprises a damping layer A, a damping layer B and a damping layer C from top to bottom. The damping layer A is filled with metalspherical particles A, the damping layer B is filled with metal spherical particles B, and the damping layer C is filled with metal spherical particles C. The thickness ratio of damping layer A, damping layer B and damping layer C is close to 2: 3: 5, and the ratio of metal spherical particle A to metal spherical particle B and metal spherical particle C is 4: 2: 1. The invention relates to a hybrid damping vibration isolator, which adopts the relative motion of particles in a hierarchical damping layer to improve the damping force and the metal coil spring to reset the shock and vibration, and is suitable for bridge vibration.
Description
technical field [0001] The invention mainly relates to the field of bridge vibration isolation, in particular to a hybrid damping vibration isolator suitable for bridge vibration. Background technique [0002] Bridge is an important infrastructure in the construction of modern urbanization. It has strong social publicity and should have strong seismic performance. Vibration isolation in bridge design usually means that the bridge is flexibly supported in the horizontal direction and dampers are installed in the vertical direction. At present, the bridge dampers in my country are relatively backward, and it is difficult to achieve rapid recovery of large impacts. Therefore, designing a hybrid damping isolator suitable for bridge vibration isolation has important guiding value. Contents of the invention [0003] The technical problem to be solved in the present invention is: Aiming at the technical problems existing in the prior art, the present invention provides a shock-r...
Claims
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IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 班书昊谭邹卿徐然席仁强何云松蒋学东
Owner CHANGZHOU UNIV