作　　者： (蒋正跃）; (付云松）;

机构地区： 云南农业大学水利学院,昆明650201

出　　处： 《广西水利水电》 2017年第4期25-27,共3页

摘　　要： 八字折线拱结构在水利渡槽工程中广泛应用,但拱平面外的地震动力性能研究较少,工程设计中该问题亟待重视。为此,对折线拱结构建立了运动平衡微分方程,求解微分方程得出了地震力的计算公式,通过例证验证:该方法与采用有限元分析所得结果一致,可供折线拱结构设计分析时参考。 The splayed broken line arch structure is widely used for aqueduct engineering of water conservancy projects,but there is little research on its seismic dynamic performance except for the arch plane.Motion balance differential equations are established for study of the behavior of broken line arch structure,and the formulas for calculating the seismic forces are obtained by solving the differential equations.The results of calculation by this method are consistent with that out of finite element analysis as demonstrated by actual example.

关 键 词： 渡槽 地震 八字折线拱 微分方程 质点