| 分析斜交弯桥的刚度法 |
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| 引用本文： | 蒋志刚.分析斜交弯桥的刚度法[J].重庆交通大学学报(自然科学版),2001,20(2):30-34. |
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| 作者姓名： | 蒋志刚 |
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| 作者单位： | 国防科技大学工程兵学院, |
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| 摘 要： | 考虑弯桥梁轴线与支承线斜交 ,按平面曲梁杆系结构分析斜交弯桥 .采用节点坐标系 ,构建了圆弧梁的单元刚度矩阵 ,给出了常用荷载等效节点力的计算方法 .用直接刚度法 (电算 )和位移法 (手算 )解算斜交连续曲线梁桥和弯形刚构桥 .算例表明 ,该方法方便、可靠 ,具有通用性 ,便于编程和手算
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| 关 键 词： | 弯桥 斜交 曲梁杆系结构 刚度法 |
| 文章编号： | 1001-716X(2001)02-0030-05 |
| 修稿时间： | 2000年6月12日 |
Stiffness method for skew curved bridges |
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| JIANG Zhi-Gang.Stiffness method for skew curved bridges[J].Journal of Chongqing Jiaotong University,2001,20(2):30-34. |
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| Authors: | JIANG Zhi-Gang |
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| Abstract: | In this paper, the girder of curved bridges was taken as normal curved beam structure. Based on the schemes of different support conditions of skew curved bridges, the nodal-axis-system was utilised. The element stiffness ratrix of skew curcular beam have been developed. The equivalent nodal force vectors subjected to usual loads were also derived by force method. Some numerical results of two examples were given. This method is simple, actual and reliable. It can be used to calculate the skew continous curved girder bridges, the skew continous curved ridgid frame bridges and the curved ridgid fram in building structures. |
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| Keywords: | curved bridge skew bearing curved beam system structure stiffness method |
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