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针对常规斜桥在地震作用下的常见病害,通过建立不同斜交角的常规斜桥和无缝化斜桥模型并进行地震时程分析,从结构动力特性以及地震作用下支座剪力、梁端碰撞以及主梁侧移和平转、下构的受力等方面进行对比分析。结果表明:无缝化斜桥在地震中可以防落梁以及梁端碰撞,具有更小的支座剪切变形和主梁位移。
Aiming at common defects of conventional inclined bridges under earthquake action, the conventional inclined bridges with different skew angles and the seamless slant-bridge model are established and the seismic time history analysis is carried out. According to the structural dynamic characteristics and bearing shear under earthquake, Collisions and side beams and the main girder shift, under the force of the structure and so on comparative analysis. The results show that the seamless inclined bridge can prevent the falling of the beam and the collision of the beam at the earthquake, and has the smaller shear deformation and the displacement of the main beam.