摘要
研究了基于响应面法进行减震结构非线性粘滞阻尼器参数优化设计的方法,该方法包括试验设计、有限元分析、响应面函数拟合和参数优化。以一榀钢筋混凝土框架结构非线性粘滞阻尼器参数优化为例,以所有粘滞阻尼器提供的阻尼力之和最小为优化目标函数,层间最大位移限值作为约束条件,建立粘滞阻尼器参数优化的数学模型,然后运用非线性规划优化方法进行参数优化。算例研究结果表明:基于响应面法进行粘滞阻尼器参数优化,既能保证结构层间位移小于限值,又能降低建造成本。
The design method of parameter optimization of nonlinear viscous dampers for dissipation structure was analyzed based on response surface methods. The method included experimental design, finite element analysis, fitting the response surface function and parameter optimization. Taking a reinforced concrete frame structure for an instance, the mathematical model of parameter optimization of viscous dampers for dissipation structure was established by taking the minimum all damping force as objective function and taking the interlayer maximum displacement less than limits as constraints, and then the damper parameters were optimized using the method of nonlinear programming optimization. The results show that the method of parameter optimization of viscous dampers based on response surface method can ensure the structural displacement is less than limit and the construction cost can be reduced.
出处
《土木建筑与环境工程》
CSCD
北大核心
2013年第1期80-85,共6页
Journal of Civil,Architectural & Environment Engineering
基金
国家“863计划”项目(2006AA04Z416)
国家自然科学基金资助项目(50538020、51078080)
国家杰出青年基金项目(50725828)
江苏省高校自然科学研究项目(10KJB58005)
关键词
粘滞阻尼器
响应面法
参数优化
阻尼力
结构
viscous dampers
response surface methods
parameter optimization
damping force
structure
