Seismic isolation device for reducing vibration transmitted to object
The stackable seismic isolation device with a laminated structure and adjustable load distribution effectively reduces vibrations by adapting to different design conditions, enhancing structural safety and resilience.
WO2026151073A1PCT designated stage Publication Date: 2026-07-16ACE ENG & CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ACE ENG & CO LTD
- Filing Date
- 2025-12-01
- Publication Date
- 2026-07-16
AI Technical Summary
Technical Problem
Existing seismic isolation devices lack the ability to efficiently adapt to various design conditions and effectively reduce vibrations transmitted to structures during seismic events.
Method used
A stackable seismic isolation device comprising a laminated structure with a core member made of lead, coated with tin, and a ball joint connecting flanges, allowing for adjustable load distribution and vibration energy absorption through a combination of rubber and steel layers, with a load-adjusting bolt to match design loads.
Benefits of technology
The device provides efficient vibration energy absorption and distribution, ensuring structural integrity and safety by adapting to varying loads and frequencies, thereby reducing damage from seismic events.
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Smart Images
Figure KR2025020238_16072026_PF_FP_ABST
Abstract
The present disclosure has been devised in consideration of the described background art. The objective of the present disclosure is to provide a seismic isolation device provided at an object so as to reduce vibration transmitted to the object. In one embodiment, the seismic isolation device may comprise: a laminated structure including at least one rubber layer and at least one plate layer; a planar-structured upper flange provided at an upper portion of the laminated structure so as to be coupled to the object, and a planar-structured lower flange provided at a lower portion of the laminated structure, each of the upper flange and the lower flange having an extended surface extended from the laminated structure; a core member made of lead, and formed in the lamination direction of the laminated structure inside the laminated structure; and a connection member formed in the lamination direction between the upper flange and the lower flange so as to connect the extended surface of the upper flange and the extended surface of the lower flange, the connection member including ball joints each including a spherical ball that receives a load and a socket that has a shape of encompassing the ball so that the ball can rotate therein.
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