14. Use of natural rubber (NR) for vibration isolation and earthquake protection of structures

Published Date
Chemistry, Manufacture and Applications of Natural Rubber
2014, Pages 371–381, doi:10.1533/9780857096913.2.371

• Author 

• Y. Fukahori

Abstract:

Rubber-metal laminated bearings have been widely used for vibration isolation and earthquake protection of heavy superstructures. Base isolation systems have been shown to protect not only the structure itself but occupants and internal equipment from earthquake damages. in Japan, more than 3,500 base-isolated buildings have been built in the last 25 years and they showed excellent resilience when a huge earthquake struck northern Japan in March 2011. The great advantage of natural rubber based on its linear elasticity, high strength, fatigue life and excellent adhesion to metals makes it well suited to vibration isolation and seismic isolation of structures.

Key words

• natural rubber
• rubber-metal laminated bearings
• vibration isolation
• seismic isolation
• earthquake
• natural frequency
• transmissibility
• compression creep
• S-N curve
• durability of 60 years

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