一种分析曲线梁桥问题的方法——子域加权残数法  

A Numerical Method for the Analysis of Curved Bridge Problems ——The Method of Subdomain Weighted Residuals

作　　者：陈莹[1] 陈波[1] 

机构地区：[1]兰州铁道学院函授部,730070

出　　处：《计算结构力学及其应用》1993年第3期336-342,共7页

摘　　要：应用子域加权残数法分析了曲线桥的内力,它拓宽了加权残数法的应用范围。对可比拟为正交异性曲板的曲线梁桥,用本法解决了任意点内力影响场问题,这为按影响场法设计曲线梁挢开辟了一条求解内力的新途径。最后给出了一个具体算例。By making use of subdomain weighted residuals method, the internal forces of curved multi-girder bridge is analysed in this paper. It widens the applicable region for the general method of weighted residuals. For curved multi-girder bridge simulated as an orthotropic sector plate, this methodcan solve the influence fields of internal forces, and give a different way for the analysis of curved multi-girder bridge designed with the method of influence fields. Finally, a numerical example is presented.

关 键 词：加权剩余法 偏微分方程 曲线桥 

分 类 号：U448.2[建筑科学—桥梁与隧道工程]