Isolation bearing with high carrying capacity and convenient replacement

Abstract

The invention relates to an isolation bearing with high carrying capacity and convenient replacement and used for a large space structure isolation layer. The isolation bearing comprises an upper pre-buried plate, a lower pre-buried plate, an upper connecting plate connected with the upper pre-buried plate, a lower connecting plate connected with the lower pre-buried plate, a rubber bearing main body, and a ball bearing arranged between the upper connecting plate and the lower connecting plate; the rubber bearing main body comprises a first connecting plate, a rubber bearing and a second connecting plate, and the second connecting plate is detachably connected with the lower connecting plate; and the first connecting plate is detachably connected with the upper connecting plate through a connecting piece. Whether the horizontal displacement of the isolation bearing is zero, or under the condition of large horizontal deformation, the isolation bearing has higher vertical carrying capacity, so that the safety of the upper structure is protected; the horizontal friction force of the ball bearing is very small, so that the resilience load of the rubber bearing main body is not increased additionally; and through detachable connection between the rubber bearing main body and the upper connecting plate, and between the rubber bearing main body and the lower connecting plate, the rubber bearing main body is easy to replace.

Description

technical field [0001] The invention relates to the technical fields of construction engineering, bridge engineering, and large-space engineering, in particular to a shock-isolation support with strong bearing capacity and easy replacement, which is used for bridge shock-isolation layers, building shock-isolation layers, and large-space structure shock-isolation layers . Background technique [0002] Laminated rubber isolation technology plays an important role in reducing the damage caused by earthquakes to building structures and bridge structures. It has good horizontal deformation capacity and energy dissipation characteristics, so it is widely used in building isolation layers and bridge isolation layers. to mitigate earthquake damage to buildings and bridges. However, for long-span bridge isolation structures, high-rise isolation buildings and large-span space isolation structures, the load required for each vertical component is relatively large, but the vertical sur...

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Problems solved by technology

However, for long-span bridge isolation structures, high-rise isolation buildings and large-span space isolation structures, the load required for each vertical component is relatively large, but the vertical surface pressure design of traditional isolation rubber bearings is limited, even The design of its vertical surface pressure is too large, but its corresponding horizontal deformation capacity will be reduced, so the traditional seismic isolation rubber bearing cannot have a large vertical load and horizontal deformation capacity at the same time, and cannot meet the requirements of large-span bridge seismic isolation. In order to meet the functional requirements of structures, high-rise isolation buildings and large-span space isolation structures, a new type of support that can meet the requirements of large vertical bearing capacity and large horizontal deformation under normal loads is now required.

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