Abstract: In this paper,the girder of curved bridges was tak en as normal curved beam structure.Based on the schemes of different support condi tions of skew curved bridges,the nodal-axis-system was utilised.The element st iffness matrix of skew curcular beam have been developed.The equivalent nodal fo rce vectors subjected to usual loads were also derived by force method.Some nume rical results of two examples were given.This method is simple,actual and reliab le.It can be used to calculate the skew continous curved girder bridges,the skew continous curved ridgid frame bridges and the curved ridgid fram in buildin g structures.

Key words: curved bridge, skew bearing, curved beam system structure, stiffness method

摘要： 考虑弯桥梁轴线与支承线斜交,按平面曲梁杆系结构分析斜交弯桥.采用节点坐标系,构建了圆弧梁的单元刚度矩阵,给出了常用荷载等效节点力的计算方法.用直接刚度法(电算)和位移法(手算)解算斜交连续曲线梁桥和弯形刚构桥.算例表明,该方法方便、可靠,具有通用性,便于编程和手算

关键词: 弯桥, 斜交, 曲梁杆系结构, 刚度法