Vertical tensile resistant seismic isolation device based on carbon fiber reinforced rubber

By using a vertical pull-out isolation device made of carbon fiber reinforced rubber, vertical motion is converted into compression and shear deformation, which solves the problem that laminated rubber bearings cannot isolate vertical vibration, and achieves vertical isolation effect and lightweight design.

CN118128848BActive Publication Date: 2026-07-24INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION
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Patent Information

Application Number
CN202410392400.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-02
Publication Date
2026-07-24
Estimated Expiration
2044-04-02

AI Technical Summary

Technical Problem

Laminated rubber bearings cannot effectively isolate vertical vibrations, which may lead to failure to meet the vertical vibration reduction and isolation requirements of structures or equipment in some cases, and may even amplify vertical vibrations.

Method used

A vertical pull-out isolation device using carbon fiber reinforced rubber converts the vertical motion of the superstructure into compressive-shear deformation through the staggered arrangement of conical carbon fiber plates and high-damping rubber layers, and uses the compressive-shear deformation of carbon fiber reinforced rubber to dissipate seismic energy.

Benefits of technology

It effectively isolates and dissipates vertical seismic energy, reduces the weight of the supports and the difficulty of construction, improves applicability and durability, avoids structural torsion and swaying, and achieves good pull-out resistance.

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Abstract

The application discloses a vertical tension-resistant isolation device based on carbon fiber reinforced rubber, which comprises a bottom plate, a limiting cylinder fixedly connected to the top of the bottom plate and a conical ring plate fixedly connected to the bottom of a top plate, a bearing circular table and the conical ring plate are provided with conical carbon fiber plates and conical high-damping rubber layers arranged in a staggered manner, the conical carbon fiber plates and the conical high-damping rubber layers are bonded to form carbon fiber reinforced rubber, and a tension-resistant key in the center of the top plate and the bearing circular table in the center of the bottom plate form a rotating buckle structure. The vertical movement of the upper structure or equipment is converted into the compression-shear deformation of the carbon fiber reinforced rubber through the inclined design of the conical ring plate, the bearing circular table and the conical carbon fiber plate, the deformation energy consumption capacity of the high-damping rubber is fully utilized, the vertical isolation is realized, and the limiting cylinder and the tension-resistant key provide good tension-resistant performance. The application has the advantages of simple structure, reasonable stress, good tension-resistant performance, light and durable carbon fiber reinforced rubber, and large bearing capacity range.
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