| 钢-混凝土双面组合连续梁自振特性研究 |
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| 引用本文： | 赵文强,段树金.钢-混凝土双面组合连续梁自振特性研究[J].石家庄铁道学院学报,2010,23(3):63-67. |
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| 作者姓名： | 赵文强 段树金 |
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| 作者单位： | 石家庄铁道大学,土木工程学院,河北,石家庄,050043 |
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| 基金项目： | 河北省自然科学基金，河北省教育厅自然科学重点项目 |
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| 摘 要： | 对钢-混凝土双面组合连续梁的自振特性进行分析研究。分析中分为三种特定工况：工况一和工况二假设钢梁与混凝土完全组合，但工况二内支座处上混凝土板受拉开裂；工况三假设上混凝土板受拉开裂，且考虑钢梁与混凝土板间的滑移效应。采用平面梁的集中质量法和三维有限元模拟分析分别得到了一两跨钢．混凝土双面组合连续梁模型在三种工况下的自振频率及振型，二者吻合良好。
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| 关 键 词： | 钢-混凝土双面组合连续梁 自振频率 振型 集中质量法 有限元法 |
Study on Natural Vibration of Double Steel and Concrete Composite Continuous Beam |
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| Zhao Wenqiang,Duan Shujin.Study on Natural Vibration of Double Steel and Concrete Composite Continuous Beam[J].Journal of Shijiazhuang Railway Institute,2010,23(3):63-67. |
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| Authors: | Zhao Wenqiang Duan Shujin |
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| Institution: | (School of Civil Engineering, Shijiazhuang Tiedao University ,Shijiazhuang 050043, China) |
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| Abstract: | The natural vibration of the double steel and concrete composite continuous beam is analyzed in this paper. Three special working conditions are considered： in the first two, it is supposed that the steel profile and the concrete slab are composed completely, but the top concrete slab cracks under tension near the interior pier in the second condition; while in the third condition, both the cracks in concrete tension slab and the slip effect between steel profile and concrete slab are considered. Using lumped-mass method and three-dimensional FE simulation, the natural frequencies and the vibration models are obtained and discussed for a two - span double steel and concrete composite continuous test beam in the three conditions. |
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| Keywords: | double steel and concrete composite continuous beam natural frequency vibration modal lumped-mass method FEM |
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