摘要
对一种基于空腔楼板的新型耗能减震装置的参数优化问题进行了探讨;对基于拉格朗日变分原理推导出的装有该装置的受控结构非线性运动方程进行统计线性化处理,以结构的水平位移方差最小化为优化准则,应用定点理论方法对该装置的参数优化问题展开研究;利用蒙特卡洛模拟方法对不同情况下受控结构的减震效果进行对比分析,验证了该方法的有效性。结果表明:采用所提方法能有效进行耗能减震装置的参数优化设计,为该装置的推广应用提供依据。
The parameter optimization of a new energy dissipation device based on hollow floor slab was discussed. The nonlinear motion equation of the controlled structure with the device based on the Lagrange variational principle was treated using statistical linearization method. Then, taking the device as object, the structural horizontal displacement variance minimization was taken as the optimization criterion, the parameter optimization problem of the device was studied using the fixed point theory. The Monte Carlo simulation method was used to compare the damping effects of the controlled structure under different conditions, and the effectiveness of the proposed method was verified. The results show that the proposed method can be used to optimize the parameters of energy dissipation device effectively, and provides the basis for the application of the device.
出处
《建筑科学与工程学报》
CAS
北大核心
2017年第2期10-17,共8页
Journal of Architecture and Civil Engineering
基金
国家自然科学基金项目(51678464)
关键词
耗能减震装置
参数优化
定点理论
蒙特卡洛模拟
空腔楼盖
energy dissipation device
parameter optimization
fixed point theory
Monte Carlo simulation
hollow floor slab
作者简介
李书进（1967-），男，湖北仙桃人，教授，博士研究生导师，工学博士，E—mail：sjli@whut．edu．cn。
