Lessons Learned for Design of Passively-controlled Structures from the Great East Japan Earthquake
【Abstract】 Oil dampers of a steel building in Sendai City were seriously damaged by the Great East Japan Earthquake in 2011. This event showed the dampers have their own limit states under extreme loading condition,which hasn’t been investigated fully and thoroughly. This paper indicates that the energy dissipation devices are additional components for improving the seismic capacity of the main frame,and these devices are disposable and replaceable when degraded or damaged. The seismic design concept of passively-controlled structures should be studied and valued during the initial design stage. In the near future,more efforts needs to be spent in investagating the performance-based theory of passively-controlled structures.
【Key words】 passively-controlled structure； energy dissipation device； oil damper； limit state； the Great East Japan Earthquake；
- 【文献出处】 结构工程师 ,Structural Engineers , 编辑部邮箱 ,2015年02期