| 波形钢腹板PC组合箱梁的动力特性研究 |
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| 引用本文： | 韦忠瑄,孙鹰,沈庆,万水,胡洋.波形钢腹板PC组合箱梁的动力特性研究[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 韦忠瑄 孙鹰 沈庆 万水 胡洋 |
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| 作者单位： | 解放军理工大学理学院数学与物理系;解放军理工大学工程兵工程学院野战工程系;东南大学交通学院; |
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| 基金项目： | 国家自然科学基金资助项目(50078014) |
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| 摘 要： | 通过对30m波形钢腹板PC组合箱梁的模态特性进行有限元分析和试验研究,了解这种钢-混组合结构的固有振动特性,为波形钢腹板PC组合箱梁的动力响应分析与抗震设计提供依据.研究表明,波形钢腹板PC组合箱梁的动力特性与一般的混凝土梁相比存在很大的差异,波形钢腹板PC组合箱梁结构的横向刚度和扭转刚度都比较小,在设计中必需予以重视.波形钢腹板PC组合箱梁的固有振动频率公式计算的基频结果与模态试验结果十分吻合,可用来计算波形钢腹板PC组合箱梁的基频.
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| 关 键 词： | PC组合箱梁 波形钢腹板 振动 固有频率 |
STUDY ON DYNAMIC PROPERTIES OF THE PRESTRESSED CONCRETE BOX-GIRDER WITH CORRUGATED STEEL WEBS |
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| Zhongxuan Wei Ying Sun Qing Shen Shui Wan Yang Hu.STUDY ON DYNAMIC PROPERTIES OF THE PRESTRESSED CONCRETE BOX-GIRDER WITH CORRUGATED STEEL WEBS[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Zhongxuan Wei Ying Sun Qing Shen Shui Wan Yang Hu |
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| Institution: | Zhongxuan Wei1 Ying Sun1 Qing Shen2 Shui Wan3 Yang Hu3(1 Department of Mathematics and Physics,Sciences Institute,PLA Univ.of Sci.& Tech.,Nanjing,211101)(2 Department of Field Engineering,Engineering Institute of Engineering Crops,210007)(3 School of Transportation,Southeast University,210096) |
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| Abstract: | Through a dynamical test on a 30m span PC box-girder with corrugated steel webs,the natural vibrations of the box-girder was known and the theory was applied to assist the analysis and seismic design of the girder.The results show that,the modal properties of the type of girder differ from the commonly used concrete girder.The transverse and the torsion stiffness of PC box-girder with corrugated steel webs are lower than concrete box-girder and we must take care of it in our design.The fundamental frequency... |
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| Keywords: | prestressed composite box-girder corrugated steel webs vibration natural frequency |
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