| 装配式公路钢桥竖向自由振动分析 |
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| 引用本文： | 詹豪,蒋志刚,严波.装配式公路钢桥竖向自由振动分析[J].国防交通工程与技术,2007,5(4):33-35. |
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| 作者姓名： | 詹豪 蒋志刚 严波 |
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| 作者单位： | 国防科技大学,湖南,长沙,410072 |
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| 摘 要： | 引入抗弯弹簧铰模拟结构接头传递弹性弯矩的特性,建立了用于装配式公路钢桥竖向自由振动分析的带抗弯弹簧铰梁模型;利用有限元程序ANSYS对接头进行数值仿真,得到了抗弯弹簧铰刚度。算例表明,抗弯弹簧铰可反映拼装式结构接头传递弹性弯矩的特性,装配式公路钢桥自振频率理论解与试验吻合很好。
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| 关 键 词： | 桥梁工程 装配式公路钢桥 抗弯弹簧铰 自由振动 连接接头 |
| 文章编号： | 1672-3953（2007）04-0033-03 |
| 收稿时间： | 2007-07-09 |
| 修稿时间： | 2007年7月9日 |
Natural Vibration Analysis of Prefabricated Highway Steel Bridges |
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| ZHAN Hao,JIANG Zhi-gang,YAN Bo.Natural Vibration Analysis of Prefabricated Highway Steel Bridges[J].Traffic Engineering and Technology for National Defence,2007,5(4):33-35. |
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| Authors: | ZHAN Hao JIANG Zhi-gang YAN Bo |
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| Abstract: | The bending-resistant spring hinge model is adopted to simulate the behavior of the elastic bending of connecting joints.The structural model of a beam with bending-resistant spring hinge is established for the natural vibration analysis of prefabricated highway steel bridges.The behavior of connect joints and the stiffness of bending-resistant spring hinges are studied with the finite element software ANSYS.A comparison between the present model and test results shows that the bending-resistant spring hinge model can represent the properties of elastic bending of connect joints of assembled structures. |
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| Keywords: | bridge engineering prefabricated highway steel bridge bending-resistant spring hinge natural vibration connecting joint |
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