摘要
定义了池式调谐质量阻尼器(TMD),运用调谐液体阻尼器(TLD)与TMD相结合的方法综合考虑其总体动力效应;同时推导了结构与TMD、TLD以及池式TMD系统的运动方程。以结构物室内游泳池为例,研究了不同池长设计值的池式TMD在风振与地震激励下对结构的控制性能,对比了相应TMD、TLD的控制效果,并运用相位差分析的方法对池式TMD的设置提出了建议。结果表明:池式TMD经优化设计后可取得与普通TMD相近的控制效果,均远优于TLD;同时,池式TMD较普通TMD更经济且更具实用价值。
Presented a pool-type tuned mass damper (TMD),in which the synthetical effects of both tuned liquid damper (TLD) and TMD were considered simultaneously.The equations of motion of the structure with a pool-type TMD,TMDor TLD were formulated.Anindoor swimming pool was taken as an example to investigate the control performance of this new pool-type TMD.The control effectivenesses of the pool-type TMD system with various pool-lengths along vibration direction were also computed and compared with that of the corresponding TMD,TLD systemunder wind or earthquake excitations respectively.The suggestions for designing a pool-type TMD were provided through phase difference analyses.The results showthat the optimally designed pool-type TMD can achieve a performance level which is close to that of an ordinary TMD,while both TMDs far outperform TLD.Compared with ordinary TMD,the pool-type TMD has more economical and practical values.
出处
《建筑科学与工程学报》
CAS
2007年第4期1-6,共6页
Journal of Architecture and Civil Engineering
基金
national natural science foundation of China(50608021)
doctoral foundation of Ministry of Education of China(20061078001)
