曲线梁桥弯扭耦合效应研究概述

随着桥梁、公路等工程领域的快速发展,曲线梁桥在该领域得到了快速发展,曲线梁桥的优点不仅在于线路平顺、美观及容易布置,更可以克服地形、建筑物等的限制来满足公路线型的特殊桥型。相比于直线梁桥,曲线梁桥更有价值和发展前景。然而曲线梁桥由于初曲率的影响会出现弯扭耦合效应,使得研究复杂程度相比直线梁大大增加,文章就曲线梁桥的弯扭耦合效应的受力特性以及研究方法进行了概括总结。

With the rapid development of bridges,highways and other engineering fields,curved girder bridges have been developed rapidly.The advantages of curved girder bridges are not only smooth lines,beautiful appearance and easy layout,which can also overcome the limitations of terrain,buildings and so on to meet the special bridge type of highway line.Compared with straight beam bridge,curved beam bridge is more valuable and promising.However,the bending-torsion coupling effect of curved beam bridge will appear due to the influence of initial curvature,which makes the research complexity much more than that of straight beam.In this paper,the mechanical characteristics and research methods of bending-torsion coupling effect of curved beam bridge are summarized.