摘要
应用有限元法研究钢管混凝土拱桥的动力特性。把钢管混凝土结构视为一组合材料 ,根据全过程分析的应力应变曲线 ,得到钢管混凝土结构的组合模量。通过求解动力特征方程 。
Finite element method is used to study the dynamic property of concrete filled steel tubular(CFST)arch bridges.CFST structure is regarded as a combined material.According to stress-strain curve,the combined modulus is acquired.Free vibration frequency and mode of vibration are acquired by solving characteristic equation of dynamics.
出处
《石家庄铁道学院学报》
2001年第2期39-42,共4页
Journal of Shijiazhuang Railway Institute
