| 梯形多室箱梁横向内力计算方法研究 |
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| 引用本文： | 王晖,项贻强.梯形多室箱梁横向内力计算方法研究[J].公路交通科技,2007,24(1):83-86. |
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| 作者姓名： | 王晖 项贻强 |
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| 作者单位： | 浙江大学,交通工程研究所,浙江,杭州,310027 |
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| 摘 要： | 箱梁横向内力的计算目前还缺乏精确有效的简化方法。在此利用虚拟框架法,获得箱梁截面的位移变形及横向内力,通过反算得到箱梁对虚拟框架的弹性支承刚度,建立梯形多室箱梁的弹性支承框架分析模型。计算示例的分析结果表明:该模型具有较高的精度,误差能够控制在10%以内,荷载作用下的弯矩值计算精度更高,可为箱梁横向内力分析方法的研究提供了新的思路。
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| 关 键 词： | 梯形多室箱梁 横向内力 弹性支承框架法 |
| 文章编号： | 1002-0268(2007)01-0083-04 |
| 修稿时间： | 2005-08-04 |
Research on Calculation Method of the Transverse Internal Force of Trapezoid Multi-cellular Box Girder Bridge |
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| WANG Hui,XIANG Yi-qiang.Research on Calculation Method of the Transverse Internal Force of Trapezoid Multi-cellular Box Girder Bridge[J].Journal of Highway and Transportation Research and Development,2007,24(1):83-86. |
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| Authors: | WANG Hui XIANG Yi-qiang |
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| Institution: | Institute of Architecture and Civil Engineering, Zhejiang University, Zhejiang Hangzhou 310027, China |
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| Abstract: | Lateral internal force calculation of box girder still lacks accurate effective and simple method.Virtual frame method is firstly presented to obtain section displacement and lateral internal force of box girder.Elastically supporting stiffness of box girder are reversely analyzed by the presented virtual frame method.Then a elastically supported frame analysis model of trapezoid multi-cellular box girder is built.The calculating results show that this model has higher precision and offers a new way for calculating lateral internal force of box girder. |
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| Keywords: | trapezoid multi-cellular box girder lateral internal force elastically supported frame method |
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