| 斜拉桥索塔与索梁锚固区局部应力分析 |
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| 引用本文： | 丁志威,张峻峰,武修雄,樊小伟,靳敏超.斜拉桥索塔与索梁锚固区局部应力分析[J].水运科技信息,2011(5):4-7. |
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| 作者姓名： | 丁志威 张峻峰 武修雄 樊小伟 靳敏超 |
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| 作者单位： | [1]中交第二航务工程勘察设计院有限公司,武汉430071 [2]江西省投资集团公司,南昌330096 |
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| 摘 要： | 混凝土斜拉桥索塔、主梁常采用预应力混凝土结构,在强大的索力和预应力共同作用下,索塔、索梁锚固区受力十分复杂。针对索塔、索梁锚固区的受力状况进行研究,对优化锚固区细部构造及预应力钢束的布置均有重要意义。以一座独塔混凝土斜拉桥为例,运用有限元方法对索塔、索梁锚固区进行了空间应力分析,总结了锚固区的受力特点。
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| 关 键 词： | 锚固区 预应力混凝土 局部应力分析 有限元 |
Local Stress Analysis of Anchorage for Cable-stayed Bridges Based on the Finite Element Method |
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| Ding Zhiwei,Zhang Junfeng,Wu Xiuxiong,Fan Xiaowei,Jin Minchao.Local Stress Analysis of Anchorage for Cable-stayed Bridges Based on the Finite Element Method[J].Transportation Science & Technology,2011(5):4-7. |
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| Authors: | Ding Zhiwei Zhang Junfeng Wu Xiuxiong Fan Xiaowei Jin Minchao |
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| Institution: | 1.CCCC Second Harbor Consultants Co.,Ltd.,Wuhan 430071,China; 2.Jiangxi Provincial Investment Group Corp.,Nanchang 330096,China) |
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| Abstract: | Pre-stressed concrete beams and pylons are usually adapted in concrete cable-stayed bridges.Under cable force and pre-stress,the mechanics of the anchorage is extremely complicated.Theoretical study on the mechanics of the anchorage is very important for the optimization of the structure design and arrangement of pre-stressed tendons in the anchorage zone.The spatial stress of the anchorage is calculated by finite element method.The mechanical behaviors of the anchorage are summarized and the research results can be a reference for similar bridge. |
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| Keywords: | anchorage zone pre-stressed concrete local stress analysis finite element method |
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