白潭湖大桥斜拉索塔上锚固设计研究

Study on Anchorage Design of Cable-stayed Pylon of Baitan Lake Bridge

因斜拉索索力大和塔柱截面较宽,在分析总结常用的斜拉索索塔锚固形式优缺点的基础上,白潭湖大桥设计提出了优化后的预应力锚固方式,即在常用的预应力锚固方式基础上,设置隔板并布置预应力钢束,以平衡斜拉索的水平分力,同时改善了塔柱壁弯曲应力。

Because of the large stayed cable force and the wider pylon column section, and based on the analysis and summarization of the advantages and disadvantages of common anchorage type for cable-stayed pylon, the article proposes the optimized pre-stressed anchorage mode for the design of Baitan Lake Bridge,namely on the basis of the common pre-stressing anchorage mode, the clapboard is installed and the pre-stressed steel beam is arranged so as to balance the horizontal component force of stayed cable and also to improve the bending stress of pylon column wall.