| 现代钢桥新型结构型式及其疲劳问题分析 |
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| 引用本文： | 李小珍,任伟平,卫星,强士中.现代钢桥新型结构型式及其疲劳问题分析[J].钢结构,2006,21(5):50-55. |
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| 作者姓名： | 李小珍 任伟平 卫星 强士中 |
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| 作者单位： | 西南交通大学,土木工程学院,成都,610031 |
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| 摘 要： | 随着各种形式的钢桥在我国得到大规模建设,特别是一些新型结构型式和制造工艺不断出现在现代钢桥中,钢桥构件的疲劳性能在设计时需特别关注。在对钢桥疲劳性能影响因素、钢桥疲劳设计关键参数以及疲劳荷载分析的基础上,对现代钢桥中的一些典型构造细节的疲劳性能进行了分析,并对防止钢桥疲劳的方法进行了总结,最后指出了目前我国钢桥疲劳研究中存在的一些问题,这对有效地防止钢桥疲劳破坏事故的发生,提高我国钢桥的设计和制造水平具有重要的意义。
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| 关 键 词： | 钢桥 疲劳 疲劳荷载 索梁锚固 整体节点 正交异性钢桥面板 管节点 短吊杆 |
| 收稿时间： | 2006-03-18 |
| 修稿时间： | 2006年3月18日 |
NEW STRUCTURAL TYPES AND FATIGUE PROBLEMS OF MODERN STEEL BRIDGE STRUCTURES |
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| Li Xiaozhen,Ren Weiping,Wei Xing,Qiang Shizhong.NEW STRUCTURAL TYPES AND FATIGUE PROBLEMS OF MODERN STEEL BRIDGE STRUCTURES[J].Steel Construction,2006,21(5):50-55. |
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| Authors: | Li Xiaozhen Ren Weiping Wei Xing Qiang Shizhong |
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| Abstract: | A number of steel bridges including some news types of structures and manufacture processes were built in China in last years. The fatigue performance of these modem steel bridges should be taken into account in design and maintenance. It is discussed that the influence factors for steel bridges fatigue strength, some important design parameter of steel fatigue design and fatigue load spectrum. Based on the discussions, the fatigue performance of a few types of typical details were studied. The emphasis is on the subjects where technical guidelines are not available from the current specifications. Finally, it is also summarized the methods preventing fatigue failure in modem steel bridges. |
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| Keywords: | steel bridge fatigue fatigue load cable-beam anchorage welded joint orthotropie steel bridge deck tubular joint short hanger cable |
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