| 确定斜拉桥索力的有约束优化方法 |
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| 引用本文： | 乔建东,陈政清.确定斜拉桥索力的有约束优化方法[J].上海力学,1999,20(1):49-55. |
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| 作者姓名： | 乔建东 陈政清 |
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| 作者单位： | 长沙铁道学院土建学院，长沙铁道学院土建学院 长沙 410075，长沙 410075 |
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| 摘 要： | 本文建立了斜拉桥索力调整的非线性规划模型，其中以斜拉桥梁和索塔的拉压及弯曲应变能为目标函数，以结构的位移，弯矩及索力为约束，采用梯度投影法进行求解用以确定成桥合理状态的索力。
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| 关 键 词： | 斜拉桥 约束优化 索力调整 非线性规划 |
THE METHOD OF CONSTRAINED OPTIMIZATION FOR THE PRESTRESSES OF CABLES IN CABLE-STAYED BRIDGES |
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| Qiao Jiandong Chen Zhengqing.THE METHOD OF CONSTRAINED OPTIMIZATION FOR THE PRESTRESSES OF CABLES IN CABLE-STAYED BRIDGES[J].Chinese Quarterly Mechanics,1999,20(1):49-55. |
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| Authors: | Qiao Jiandong Chen Zhengqing |
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| Abstract: | In this paper, a model for nonlinear optimization programming to adjust the prestresses of cables in the cable-stayed bridge is established, in which the strain energy of the tension and bending of the beams of the bridge and the cable tower is the objective function, and displacement of node or the bending moment of sections or the cable force is the constraint condition. In order to determine the prestresses of the cables of the bridge, the method of gradient projection is used to solve the program. |
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| Keywords: | cable-stayed bridge optimization |
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