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| FRP夹心桥面板桥的动力特性研究 | |
| 引用本文： | 张铟,熊辉霞,蔡春声.FRP夹心桥面板桥的动力特性研究[J].铁道科学与工程学报,2006,3(5):21-26. |
| 作者姓名： | 张铟 熊辉霞 蔡春声 |
| 作者单位： | 1. 南阳理工学院,河南,南阳,473004;路易斯安纳州立大学,土木与环境工程系,美国 2. 南阳理工学院,河南,南阳,473004 3. 路易斯安纳州立大学,土木与环境工程系,美国 |
| 摘 要： | 以1个实际的FRP夹心板公路桥为例,将其简化为等效正交各项异性实心板,采用有限元法对其进行模态分析,用模态坐标法进行车桥耦合计算。考虑路面情况、车辆行驶速度的变化对FRP夹心板桥动力响应及冲击系数的影响,并将计算结果与相同跨度的混凝土板桥的结果进行对比分析。此外,对美国规范AASHTO中冲击系数的规定对FRP桥面板桥的适用性进行讨论。 |
| 关 键 词： | FRP夹心桥面板 有限元 等效正交各项异性实心板 车桥耦合模型 动力特性 冲击系数 |
| 文章编号： | 1672-7029(2006)05-0021-06 |
| 修稿时间： | 2006年5月28日 |
Study on dynamic performance of a frp sandwich slab bridge |
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| ZHANG Yin,XIONG Hui-xia,Cai Chun-sheng.Study on dynamic performance of a frp sandwich slab bridge[J].Journal of Railway Science and Engineering,2006,3(5):21-26. | |
| Authors: | ZHANG Yin XIONG Hui-xia Cai Chun-sheng |
| Abstract: | The present study focuses on a real FRP slab bridge,which is simplified as an equivalent orthotropic solid plate.Finite element method is used to predict the bridge's modal characteristics;and the bridge and vehicle systems are integrated into a vehiclebridge system based on deformation compatibility.The bridge dynamic response and impact factors are obtained considering different road surface conditions and different vehicle velocities.Then,dynamic responses are compared between the FRP slab bridge and a corresponding concrete slab bridge.Finally,the applicability of the AASHTO impact factors to FRP bridges is discussed. |
| Keywords: | FRP sandwich panels finite element method equivalent orthotropic solid plate vehicle-bridge coupled model dynamic performance impact factors |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |