摘要
研究了隔震简支连续桥梁的简化计算方法,基于多种等效线性方法,对双线性隔震支座的等效刚度及等效阻尼进行了估计。通过MATLAB和OpenSees混合编程对比线性和非线性时程分析的结果,选取最大位移反应为目标参数,对不同等效线性方法的估计精度进行了分析。
In this paper the simplified analysis method used for simply supported base-isolated bridges is studied. Based on the bi-linear isolation device, equivalent stiffness and equivalent damping are estimated by several equivalent linearization methods. The peak isolator displacement is selected as response indicator. Comparison of results from linear and nonlinear time history analyses is performed through a program specifically developed with MATLAB and OpenSees. Finally, the estimation accuracy of different equivalent linearization methods is presented.
出处
《公路》
北大核心
2014年第7期158-163,共6页
Highway
关键词
桥梁隔震
等效线性化
时程分析法
屈重比
base-isolated bridges equivalent linearization method
time history analysis
parametric analysis
