拱塔斜拉桥索塔锚固区应力分析

Stress analysis of cable-pylon anchorage zones of an arch-tower cable-stayed bridge

文章以某拱塔斜拉桥为研究对象,运用有限元分析软件ANSYS对其索塔锚固区进行空间应力分析;通过索塔锚固区不同工况下的应力分析,总结了锚固区应力分布特性,并研究了锚固区应力在索力及预应力单独作用时沿高度方向的衰减情况,为相关设计给出了相应的建议。

Taking an arch-tower cable-stayed bridge as the research object,the spatial stress analysis of its cable-pylon anchorage zones is carried out with finite element analysis software ANSYS.Based on the stress analysis of the cable-pylon anchorage zones under different operation conditions,the features of stress distribution of the anchorage zones are summarized and the stress attenuation along the pylon height which is induced by the cable tension or pre-stress is studied.The results obtained can provide useful suggestions for the related designs.