无背索斜拉桥异形桥塔刚度模拟

Stiffness Simulation of Irregular Shaped Pylon of Cable Stayed Bridge Without Back stays

中文关键词:无背索斜拉桥  异形桥塔  施工监控  刚度模拟

英文关键词:cable stayed bridge without back stays  irregular shaped pylon  construction monitoring and controlling  stiffness simulation

中文摘要:

      对于塔梁固接体系的斜拉桥，塔梁之间的刚度比将直接影响塔梁的荷载分配比例，而对于桥塔倾斜的无背索斜拉桥，塔梁刚度比的确定将更为困难和重要。通过总结长春市伊通河斜拉桥施工仿真计算采取的方法，提出一些通过调整杆系模型抗弯刚度来模拟真实桥塔刚度的看法，希望可以为类似工程提供借鉴。

英文摘要:

      For cable stayed bridge with fixed pylon and beam, the stiffness ratio between pylon and beam will directly affect the distribution ratio of load, whereas, if the pylon is tilted and without back stays, the determination of the stiffness ratio will be more difficult and important. In this paper, the author sums up the approaches used in the construction simulation of Yitong River cable stayed bridge, proposing a view: of simulating the real stiffness of the system by adjusting the bending stiffness of truss model, hoping to provide reference for similar projects.