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介绍了V形桥墩连续刚构梁拱组合桥的设计构思及特点,重点计算了墩身尺寸及边界条件对整个结构的影响.通过优化计算提出了解决方法,巧妙的解决了收缩徐变次内力和温度次内力对结构的不利影响;本桥系梁与拱肋的横向刚度比为1926∶1,系梁的刚度对拱的横向稳定性起至关重要的作用,通过在主梁主要收缩徐变完成后成拱以及对吊杆进行二次调索的施工方法成功的解决了刚性系杆柔性拱的横向稳定问题,本文设计方法和结论对同类型桥梁设计施工具有参考价值.
The design concept and characteristics of V - shaped piers continuous rigid frame beam - arch composite bridge are introduced, and the influence of pier body size and boundary conditions on the whole structure is calculated emphatically.The solution is proposed through optimization calculation, And temperature sub-internal forces on the structure of the adverse effects; the bridge beam and arch rib transverse stiffness ratio of 1926: 1, the rigidity of the tie beam plays an important role in the lateral stability of the arch, through the main contraction of the main beam Xu After the completion of the arching and the construction method of the second rebuild the boom successfully solved the rigid stability of the flexible tie arch system, the design method and conclusions of the same type of bridge design and construction with reference value.