| 混凝土斜拉桥合理成桥状态确定的分步算法 |
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| 引用本文： | 颜东煌,李学文,刘光栋,易伟建.混凝土斜拉桥合理成桥状态确定的分步算法[J].中国公路学报,2003,16(1):43-46. |
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| 作者姓名： | 颜东煌 李学文 刘光栋 易伟建 |
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| 作者单位： | 1. 长沙交通学院,桥梁与结构工程系,湖南,长沙,410076
2. 湖南大学,土木工程学院,湖南,长沙,410082 |
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| 基金项目： | 高等学校骨干教师资助计划项目[教技综字2000-6] |
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| 摘 要： | 在现有的最小弯曲能量法、影响矩阵法和应力平衡法等方法的基础上 ,提出了斜拉桥合理成桥状态确定的分步算法。基本思路是 :先用最小弯曲能量法初定成桥状态 ;然后以应力平衡法确定主梁合理预应力和主梁成桥恒载弯矩“可行域”;最后用影响矩阵法确定综合考虑主梁、塔和索等结构受力要求的合理成桥状态。
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| 关 键 词： | 桥梁工程 斜拉桥 分步算法 应力平衡法 合理成桥状态 |
| 文章编号： | 1001-7372(2003)01-0043-04 |
| 修稿时间： | 2002年3月18日 |
Step-by-step arithmetic for the reasonable finished dead state of the concrete cable-stayed bridges |
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| YAN Dong huang ,LI Xue wen ,LIU Guang dong ,YI Wei jian.Step-by-step arithmetic for the reasonable finished dead state of the concrete cable-stayed bridges[J].China Journal of Highway and Transport,2003,16(1):43-46. |
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| Authors: | YAN Dong huang LI Xue wen LIU Guang dong YI Wei jian |
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| Institution: | YAN Dong huang 1,LI Xue wen 1,LIU Guang dong 2,YI Wei jian 2 |
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| Abstract: | The step by step arithmetic for the reasonable finished dead state of the concrete cable stayed bridges is proposed on basis of minimum bending energy method, influence matrix method and stress balancing method. The basic ideology is: at first, deciding initial dead state using minimum bending energy method; then deciding the reasonable prestressing quantity in the main beam and the relative reasonable limits of dead moments using stress balancing method;in the last, the reasonable finished dead state of the total structure is determined by influence matrix method, considering the equality requests of cable forces,the bending demands of the main beam and towers, the requests of the supporting forces of side piers or assistant piers etc. |
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| Keywords: | bridge engineering cable stayed bridge step by step arithmetic stress balancing method reasonable finished dead state |
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