景观桥V型墩结构方案设计探讨

Discussion on the design of V-shaped pier of landscape bridge

为研究V墩施工和成桥下的受力,合理确定V墩结构尺寸,基于平潭竹屿湖大桥,在满足各项设计条件及技术指标下,针对几种不利工况,分别研究V墩墩高、叉角角度、墩身厚度等设计参数对结构受力的影响,最终确定了V墩结构的合适尺寸,同时也发现了V墩在施工过程不对称荷载作用下,其受力情况可能比成桥状态更为不利,应针对不同工况加强结构,本文也可为同类结构设计提供参考。

To study the structural internal force of V-shaped pier during the construction and completion state, and determine the structure of V-shaped pier reasonably, the paper analyzed the influence of the pier height, the pier angle, the pier thickness, etc., on the structure of the Zhuyu Lake Bridge in Pingtan, based on several adverse conditions which meets the design conditions and the technical indicators. Finally, the suitable dimensions of V-shaped pier was determined. In addition, the internal situation during the asymmetrical loading construction of the V-shaped may be more adverse than the completion state. Thus, according to the different load condition, the structure should be strengthened. The study of this paper can also provide reference for similar structural design.