中文摘要：

针对索塔锚固结构常用的两类基本形式（环向预应力和钢混组合结构）,结合相关足尺模型试验,详细比较了三种典型锚固构造的传力机制、应力分布、索力分配,总结出各自受力要点和改善应力分布的一些措施;提出承载效率作为评价指标。结果表明：两类形式均适用于大跨斜拉桥,环向预应力锚固形式优势明显。

英文摘要：

Aiming at two typical categories of cable-pylon anchorage structure（ hoop pre-stressing model and steel-concrete composite structure）,the transfer mechanism,stress distribution and horizontal cable-load distribution of three typical cable-pylon anchorages were contrasted in detail,with the consideration of relative full-scale model test. And each stress point and some measurements to improve the stress distribution were summarized. Load-carrying efficiency was presented as an estimation index. The results show that both hoops pre-stressing model and steel-concrete composite structure can be applied to long-span bridges,and the hoop pre-stressing anchorage evidently performs better.