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| 整体式桥台曲线箱梁桥的动力特性研究 | |
| 引用本文： | 彭大文,罗朝专,林志平. 整体式桥台曲线箱梁桥的动力特性研究[J]. 公路交通科技, 2010, 27(2) |
| 作者姓名： | 彭大文 罗朝专 林志平 |
| 作者单位： | 1. 上海应用技术学院,土木建筑与安全工程学院,上海,200235 2. 中广核工程有限公司宁德分公司,福建,福鼎,355200;福州大学,土木工程学院,福建,福州,350002 3. 上海应用技术学院,土木建筑与安全工程学院,上海,200235;福州大学,土木工程学院,福建,福州,350002 |
| 基金项目： | 上海市科委重点资助项目(08230511400);;上海市教委重点学科建设项目(J51502) |
| 摘 要： | 针对整体式桥台曲线箱梁桥的结构特点,运用结构分析软件ANSYS的APDL语言实现多模态反应谱法的自动迭代,以简化该类桥梁的动力特性分析。对该类桥梁的计算模型及影响其动力特性的主要参数进行了分析,通过动态时程分析法比较了迭代多模态反应谱法的可行性和准确性。结果表明:该类桥梁不存在纯粹某一方向的振型;1阶横弯、1阶纵弯和3阶竖弯分别对横、纵和竖向的振型贡献最大;1阶横弯和1阶纵弯频率受台后土及桩侧土密实度的影响最大,其次是地震激励频率和桥宽;3阶竖弯频率基本不受各种参数的影响;迭代多模态反应谱法可以作为该类桥梁抗震计算的一种估算手段。 |
| 关 键 词： | 桥梁工程 动力特性 迭代多模态反应谱法 整体式桥台 曲线箱梁桥 |
Research on Dynamic Characteristics of Integral Abutment Curved Box Girder Bridge |
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| PENG Dawen,LUO Chaozhuan,LIN Zhiping. Research on Dynamic Characteristics of Integral Abutment Curved Box Girder Bridge[J]. Journal of Highway and Transportation Research and Development, 2010, 27(2) | |
| Authors: | PENG Dawen LUO Chaozhuan LIN Zhiping |
| Affiliation: | 1.School of Civil Construction and Safety Engineering;Shanghai Institute of Technology;Shanghai 200235;China;2.Ningde Branch of China Nuclear Power Engineering Co.;L td.;Fuding Fujian 355200;3.School of Civil Engineering;Fuzhou University;Fuzhou Fujian 350002;China |
| Abstract: | In order to simplify analysis of the dynamic characteristics of the integral abutment curved box girder bridge,automatic iteration of the multimode modal response spectrum(MMRS) was realized by APDL language of the structure analysis software ANSYS according to the bridge's structural characteristics.The computation model and the main parameters influencing dynamic characteristics of the bridge were discussed.The availability and precision of the iterative MMRS method were examined by the time-history analy... |
| Keywords: | bridge engineering dynamic characteristics iterative MMRS integral abutment curved box girder bridge |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |