| 钢箱梁正交异性桥面板球扁钢纵肋球头朝向和横隔板空孔的优化 |
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| 引用本文： | 吴臻旺,郑凯锋,税彦斌,张昊.钢箱梁正交异性桥面板球扁钢纵肋球头朝向和横隔板空孔的优化[J].公路交通科技,2011,28(9). |
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| 作者姓名： | 吴臻旺 郑凯锋 税彦斌 张昊 |
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| 作者单位： | 1. 西南交通大学土木工程学院,四川成都,610031
2. 成都市市政工程设计研究院,四川 成都,610015 |
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| 摘 要： | 某钢箱梁正交异性桥面板行车道范围内采用球扁钢纵肋,在横隔板对应部位设置空孔让纵肋连续通过,为研究横隔板的空孔圆弧、空孔与纵肋连接端部等两个细节部位的受力特性,以某立交桥F匝道为工程背景,建立全桥有限元模型,对称荷载作用,对比横隔板对称位置空孔应力分布,分析纵肋球头朝向和背对邻近腹板两种布置对空孔受力的影响。荷载位于不同横向位置,分析横隔板空孔面内受力。荷载位于不同纵向位置,分析横隔板空孔面外受力。对横隔板空孔圆弧半径进行参数分析。研究表明,球扁钢纵肋球头背对邻近腹板和适当增大空孔圆弧半径等措施,可明显改善横隔板空孔圆弧部位受力,但对空孔与纵肋连接端部效果不够明显,需采取进一步措施以改善该细节部位的受力性能。
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| 关 键 词： | 桥梁工程 钢箱梁正交异性桥面板 球扁钢纵肋 球头朝向 横隔板空孔 |
Optimization of Bulb Direction and Diaphragm Cutout of Bulb Flat Ribs in Steel Orthotropic Deck of Box Girder |
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| WU Zhenwang,ZHENG Kaifeng,SHUI Yanbin,ZHANG Hao.Optimization of Bulb Direction and Diaphragm Cutout of Bulb Flat Ribs in Steel Orthotropic Deck of Box Girder[J].Journal of Highway and Transportation Research and Development,2011,28(9). |
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| Authors: | WU Zhenwang ZHENG Kaifeng SHUI Yanbin ZHANG Hao |
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| Institution: | WU Zhenwang1,ZHENG Kaifeng1,SHUI Yanbin2,ZHANG Hao1(1.School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China,2.Chengdu Municipal Engineering Design and Research Institute,Chengdu Sichuan 610015,China) |
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| Abstract: | Bulb flat ribs were used in the range of driveways on the steel orthotropic deck of a box girder,and cutout was set on the diaphragm to let the longitudinal ribs to pass through continuously.In order to probe into the stress characteristics of two details of diaphragm cutout,such as arc of cutout and its joint to rib,finite element analysis was carried out based on the ramp F of an overpass.With the symmetrical vehicle load action,stress distributions of symmetrical cutouts were compared,and the influences ... |
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| Keywords: | bridge engineering steel orthotropic deck of box girder bulb flat rib bulb direction diaphragm cutout |
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