摘要
研究用房屋建筑的屋盖作为调谐质量阻尼器(TMD)的质量块 ,用屋盖与其支承结构之间的摩擦替代TMD的粘滞阻尼时 ,摩擦的减振效果以及摩擦因数的模糊优化问题。数值分析算例的结果表明 ,屋盖摩擦 TMD系统使结构基本振型对地面运动的最大响应减少了 6 0 % ,且有效地控制了其它振型的响应 ;在中等以上强度的地面运动作用下 ,摩擦因数不大于 0 .5时 ,最优摩擦力可以二次降低结构的反应可达 30 % ,占总降低量的 17%。利用摩擦耗能后 ,基于屋盖的
In a roof friction tuned mass damper (TMD) system, the building roof was employed as a mass with the friction between the roof and its support members as the damper. This paper analyzed the vibration reduction caused by the friction with fuzzy optimization of the friction coefficient. The numerical analysis showed that the roof friction TMD system reduced the first mode peak response of the building subjected to ground motion by 60% and that the other mode responses were effectively controlled. The ana...
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第S1期97-100,108,共5页
Journal of Tsinghua University(Science and Technology)
基金
教育部结构工程与振动重点实验室基金资助
