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本文采用曲线座标系来计算曲梁桥的地震反应。为了计入约束扭转的影响,演引了每节点八个自由度的曲梁单元及墩单元的刚度矩阵及三个方向地震质量矩阵,经过数例的计算比较,效果良好。
This paper uses the curve coordinate system to calculate the seismic response of Qu Liang Bridge. In order to account for the influence of constrained torsion, the stiffness matrix and three-direction seismic mass matrix of curved beam element and pier element with eight degrees of freedom at each node are presented. After several calculations, the results are good.