曲率半径对曲线梁桥支座受力性能的影响研究

Research on the Influence of the Radius of Curvature on the Mechanical Performance of Bearing of Curved Beam Bridge

为了满足我国交通事业的蓬勃发展,曲线梁桥由于其经济、美观的特点在城市道路桥梁建设中也得到了较多的应用.但是曲线梁桥由于自身弯扭耦合的受力特性,在应用中出现较多的问题,如支座脱空、梁体向外偏移等典型问题.借鉴已有的曲线梁桥的计算理论,通过有限元软件MIDAS Civil模拟不同曲率半径的梁桥的支座的受力情况,得到弯桥曲率半径对桥梁结构力学性能的影响及支座反力的变化规律,为以后的桥梁支座设计、更换提供理论参考.

In order to meet the rapid development of transport in China , the curve beam bridge has got more applications in the city road and bridge construction because of its economy and beauty .But, the curve beam bridge meet many problems in the application because of stress characteristic of flexure torsion coupling , such as the typical problems of bearing cavity , migration of beam body outward .On the basis of the calculation theory for curved beam bridge , the influence laws of curvature radius on the mechanical property of the bridge structure were gotten using the finite element software MIDAS Civil to simulate the influence of different radius of curvature on the force of bearing , which provides a reference for future design .