Design, Installation and Design Review of Base Isolators and Energy Dissipaters in Building Structures(I)

Design, Installation and Design Review of Base Isolators and Energy Dissipaters in Building Structures(I)

Passive control of buildings for vibration attenuation has received much attention in recent years, especially after the 1994 North Ridge earthquake and 1995 Kobe earthquake in the US and Japan. The number of cases of application has also increased dramatically in Taiwan after the 1999 Chi-Chi earthquake. While the correct use of seismic isolation systems and energy dissipation devices may greatly improve the seismic behavior of the buildings, it may cause unexpected damage or even failure to the building if they are used incorrectly. This research is aimed at developing a guideline for the proper design and use of seismic isolation systems and passive energy dissipation devices for buildings. The research is divided into two parts: In part one, the study starts at reviewing current design codes and standards as well as cases of applications in Taiwan. The test standards for seismic isolators and energy dissipation devices are proposed based on the required performance of the passive control devices and currently available test systems in Taiwan. Finally, installation issues that may affect the quality of those devices are also discussed and summarized. In part two, the study begins at illustrating contents and important terms of the design review of base isolators and energy dissipaters in building structures. And then the design review processes and mechanisms of newly designed buildings are also recommended.