连续梁桥的抗倾覆稳定性设计方法

Design Method for Anti-Overturning Stability of Continuous Girder Bridges

桥梁建设是交通基础设施建设领域的重点内容。按曲率半径分类,桥梁可分为直线梁桥和曲线梁桥两类。曲线梁桥受力更为复杂,易存在预应力损失,进而威胁结构的稳定性。论文引入有限元建模的方法,围绕梁桥的抗倾覆稳定性展开分析,总结荷载、偏心距对抗倾覆稳定性的影响,从而加深对连续梁桥受力特性的认识。

Bridge construction is the key content in the field of transportation infrastructure construction.According to the classification of radius of curvature,Bridges can be divided into straight and curved beam bridges.The stress of curved beam bridge is more complicated,and prestress loss is easy to exist,which threatens the stability of the structure.In this paper,the finite element modeling method is introduced to analyze the anti-overturning stability of the girder bridge,and the influence of load and eccentricity on the anti-overturning stability is summarized,so as to deepen the understanding of the mechanical characteristics of the continuous girder bridge.