【摘要】 日本3·11震后调查发现一栋消能减震钢结构上的油阻尼器发生了严重的损伤和破坏,表明消能构件在极端荷载作用下是可能受损、甚至完全失效的。明确提出了在设计概念上,消能构件是提高结构抗震能力的附属设备,是可消耗的、可替换的,应重视消能减震结构的抗震概念设计。总结了消能减震结构基于性能的设计方法还有许多问题需进一步解决和完善。更多还原

【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.更多还原