| 波形钢腹板PC组合箱梁剪力滞效应影响因素分析 |
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| 引用本文： | 朱世峰,;舒志云,;李成君.波形钢腹板PC组合箱梁剪力滞效应影响因素分析[J].中南公路工程,2014(3):267-270. |
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| 作者姓名： | 朱世峰 ;舒志云 ;李成君 |
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| 作者单位： | [1]重庆交通大学,重庆400074; [2]江西省交通设计研究院有限责任公司,江西南昌330002 |
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| 摘 要： | 基于有限单元法结合桥梁通用有限元软件MIDAS/Civil和Midas FEA,计算分析了箱梁承托长度、顶板厚度、悬翼比以及横隔板的设置对波形钢腹板箱梁剪力滞的影响。结果表明：箱梁承托长度越大,剪力滞系数越小;顶板厚度越厚,剪力滞系数越小;悬翼比的改变对最大剪力滞系数影响不大,但增大悬翼比会使最小剪力滞系数降低;剪力滞系数随着箱梁内横隔板设置间距的减小而降低。
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| 关 键 词： | 剪力滞 波形钢腹板 PC组合箱梁 有限元 |
Impact Factor Research on Shear Lag Effect of PC Composite Box-girders with Corrugated Steel Webs |
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| Institution: | ZHU Shifeng , SHU Zhiyun, LI Chengjun (1. Chongqing Jiaotong University, Chongqing 400074, China; 2. Communications Design Research Institute Co. ,Ltd of Jiangxi Prov. ,Nanchang 330002 ,China ) |
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| Abstract: | Based on the FEM and FEA software such as MIDAS/civil and Midas FEA, the effect on the shear lag of box-girder with corrugated steel webs by some factors such as the support length of the box-girder, the thickness of the roof, the suspend ratio and the distance between the diaphragms were ana- lyzed. The results indicated that when the support length of the box-girder or the thickness of the roof are greater, the shear lag coefficient will be smaller; the suspend ratio has little influence on the sheer lag coefficient only can decrease the minimum factor by increasing it; by decreasing the distance between the diaphragms can reduce the shear lag coefficient. |
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| Keywords: | shear lag corrugated steel webs prestressed concrete composite box-girder FEM |
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