| 混凝土T梁横隔板合理截面尺寸数值分析 |
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| 引用本文： | 唐先习,徐岳.混凝土T梁横隔板合理截面尺寸数值分析[J].郑州大学学报(工学版),2010,31(1). |
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| 作者姓名： | 唐先习 徐岳 |
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| 作者单位： | 1. 长安大学公路学院,陕西,西安,710064;兰州理工大学土木工程学院,甘肃,兰州,730050
2. 长安大学公路学院,陕西,西安,710064 |
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| 基金项目： | 国家西部交通建设科技项目(200631822302-04) |
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| 摘 要： | 为研究混凝土T梁桥横隔板合理的厚度和高度,建立了56组混凝土简支T梁ANSYS有限元数值模型,对每组模型进行了施加中载和边载的受力性能分析.分析结果表明,当横隔板高度在肋板高度的54%~81%之间,且横隔板厚度不超过20 cm时,主梁跨中挠度、主梁跨中钢筋最大纵向拉应力以及中横隔板跨中板底钢筋横向拉应力均达到了较为适宜的值.因此,横隔板高度的合理值应在肋板高度的54%~81%之间,厚度合理值应在12 cm~20 cm之间,在以上范围内,具体取值应根据工程实际情况而定.
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| 关 键 词： | 桥梁工程 混凝土T梁 横隔板 合理截面尺寸 挠度 钢筋拉应力 |
Numerical Analysis of Reasonable Diaphragm Section Size of Concrete T Girder |
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| TANG Xian-xi
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XU Yue.Numerical Analysis of Reasonable Diaphragm Section Size of Concrete T Girder[J].Journal of Zhengzhou University: Eng Sci,2010,31(1). |
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| Authors: | TANG Xian-xi XU Yue |
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| Affiliation: | TANG Xian-xi1,2,XU Yue1(1.School of Highway,Chang\'an University,Xi\'an 710064,China,2.School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | In order to study the reasonable diaphragm height and thickness of concrete T girder bridge,56 group ANSYS finite element models of concrete simply supported girders were built,stress performance of models have been analyzed under the centre load and side load.The analysis result indicates that some aspects of girders and diaphragms stress performance achieved suitable values when the diaphragm height within limits of 54%~81% of the girder rib height and the thickness of diaphragm is less than 20 cm.these a... |
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| Keywords: | bridge engineering concrete T girder diaphragm reasonable section size deflection tensile stress of reinforcement |
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