摘要
根据Lagrange方程推导了结构顶部设置双滑动面摩擦摆调谐质量系统(DFPS-TMD)的动力反应分析计算公式,并根据龙格-库塔法利用MTALAB语言编制程序求解。计算结果表明:设置质量调谐系统之后,结构地震动力反应、楼层位移、层间位移、楼层速度及加速度分别减小,反映了该减震系统具有良好的减震效率与耗能效果。减震效果与滑道半径、摩擦系数和调谐质量有关。当r=1.5m,μ=0.01,M/m=3时减震效果最好。
A theoretical analyzing approach about a novel tuned mass damper system （DFPS-TMD） is derived according to Lagrange Equation. The solution is presented with Runge-Kutta method and is programmed with MTALAB software. The computation results show that the storey drift, inter-storey drift, storey velocity and acceleration are significantly decreased with DFPS-TMD system. The slide radius, slip friction coefficient and the tuned mass will exert rather large influence upon the efficiency of seismic mitigation and energy dissipation. The system will exhibit the best efficiency with the slide radius being 1.5m, the slip friction factor being 0. Ol, and the tuned mass M/m = 3.
出处
《工程抗震与加固改造》
北大核心
2014年第1期86-90,85,共6页
Earthquake Resistant Engineering and Retrofitting
