泰州大桥采用三塔两跨悬索桥方案，以泰州大桥工程为例，分析了三塔悬索桥与双塔悬索桥位移特征的不同点，并研究分析了塔的刚度、高度、主梁高度、矢跨比变化、边中跨比变化对三塔悬索桥位移特征的影响。

Taizhou Yangtze Highway Bridge adopts three-tower suspension bridge scheme which has two 1 080 m main span in its primary design. This paper studies the different displacement traits between three-tower suspension bridge and two-tower suspension bridge. It also analyzes the influence of various parameters, such as the rigidity and height of the tower, the height of the main girder, the sag-to-span ratio and side span's length to middle span's ratio, on displacement feature of three-tower suspension bridge.