Comparison of Concrete Cable-Pylon Anchorage Models of Long-Span
Cable-Stayed Bridges

doi:10.3969/j.issn.1674-0696.2014.03.03

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (3): 11-15.DOI: 10.3969/j.issn.1674-0696.2014.03.03

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Comparison of Concrete Cable-Pylon Anchorage Models of Long-Span Cable-Stayed Bridges

Ye Huawen , Xu Xun , Li Cuijuan , QiangShizhong

School of Civil Engineering, Southwest Jiaotong University , Chengdu 610031 , Sichuan , China

Received:2013-01-18 Revised:2013-08-25 Online:2014-06-15 Published:2015-01-22

大跨斜拉桥混凝土索塔锚固结构形式比较

叶华文，徐勋，李翠娟，强士中

西南交通大学土木工程学院，四川成都 610031

作者简介:叶华文(1982—)，男，湖北黄冈人，副教授，主要从事大跨桥梁结构行为和钢桥疲劳行为方面的研究。E-mail:hbha2000@163.com
基金资助:
国家自然科学基金项目(51208430)

Abstract

Abstract: Aiming at two typical categories of cable-pylon anchorage structure (hoop pre-stressing model and steel-concrete composite structure) , the transfer mechanism , stress distr由ution 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 struclure can be applied lo long-span br:idges , and the hoop pre-stressing anchorage evidently performs better.

Key words: bridge engineering;cable-pylon anchorage, static test, mechanic behavior, stress situation, load-carrying effi clency

摘要： 针对索塔锚同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。

关键词: 桥梁工程, 索塔锚固结构, 静载试验, 传力机理, 索力分配, 承载效率

CLC Number:

TU338

Ye Huawen , Xu Xun , Li Cuijuan , QiangShizhong. Comparison of Concrete Cable-Pylon Anchorage Models of Long-Span Cable-Stayed Bridges[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(3): 11-15.

叶华文，徐勋，李翠娟，强士中. 大跨斜拉桥混凝土索塔锚固结构形式比较[J]. 重庆交通大学学报（自然科学版）, 2014, 33(3): 11-15.

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Comparison of Concrete Cable-Pylon Anchorage Models of Long-Span Cable-Stayed Bridges

大跨斜拉桥混凝土索塔锚固结构形式比较

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