Large-displacement rotating shaft energy consumption self-resetting bridge vibration isolation support

Abstract

The invention discloses a large-displacement rotating shaft energy consumption self-resetting bridge vibration isolation support, and belongs to the technical field of constructional engineering. The large-displacement rotating shaft energy consumption self-resetting bridge vibration isolation support comprises a sliding plate and a lower connecting plate, a sliding rail is arranged on the lower surface of the sliding plate, an upper connecting plate is arranged below the sliding rail, the upper connecting plate and the lower connecting plate are connected through at least two rotating shafts, an energy consumption device is arranged between every two adjacent rotating shafts. A rotary connector is arranged above the rotating shaft, and a cantilever plate is arranged above the rotary connector; a sliding rail inner core is fixed to the cantilever plate and is in sliding connection with the sliding rail. The limiting plate rotates to extrude the plate spring, the plate spring generates plastic deformation to dissipate energy, the plate spring is simple in structure, low in manufacturing cost and easy to maintain, large-displacement deformation can be converted into local rotation deformation, vibration energy is distributed to multiple buffering components, and the self-resetting plate spring energy dissipation device has a self-resetting function, can be used for a long time and is high in stability and firmness.

Description

technical field [0001] The invention relates to a large-displacement rotating shaft energy-consuming self-resetting bridge vibration isolation bearing, which belongs to the technical field of construction engineering. Background technique [0002] The bridge bearing is an important component connecting the upper and lower structures of the bridge, and is an indispensable component of the bridge's load bearing. Existing bridge bearings are usually of fixed type, which can bear both horizontal loads and vertical loads. However, because it is a fixed form, the displacement is very small, and the supporting end of the beam cannot rotate freely, so the support directly uses the plastic deformation of the metal to resist the vibration, it is difficult to withstand long-term large displacement deformation, and the support is prone to deformation. If worn or cracked, the bearing will be greatly damaged after long-term use. [0003] The loads on the building structure come from dif...

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Problems solved by technology

However, because it is a fixed form, the displacement is very small, and the supporting end of the beam cannot rotate freely, so the support directly uses the plastic deformation of the metal to resist the vibration, it is difficult to withstand long-term large displacement deformation, and the support is prone to deformation. Abrasion or cracking, after a long time of use, the bearing will have greater damage

[0003] The loads on the building structure come from different directions. The traditional one-way isolation bearings cannot control the wind vibration and earthquake in different directions, and most of the traditional isolation bearings do not consider the influence of aftershocks. Under the action of aftershocks, there will be a large residual displacement, which will make it difficult to reset after the earthquake

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