| 锥形电杆倒落抱杆整体吊装最优吊点的确定方法 |
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| 引用本文： | 刘树堂,刘智勇,武建平.锥形电杆倒落抱杆整体吊装最优吊点的确定方法[J].广州大学学报(自然科学版),2004,3(3):251-254. |
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| 作者姓名： | 刘树堂 刘智勇 武建平 |
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| 作者单位： | 广州大学,土木工程学院,广东,广州,510405;广州市电力勘测设计院,广东,广州,510000;江门市供电局,广东,江门,529030 |
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| 摘 要： | 采用“弯曲应变能最小准则”确定锥形电杆倒落抱杆整体吊立的最优吊点，运用数值解法搜索设计变量x的最佳解，并进行算例计算．计算结果表明：按“弯曲应变能最小准则”确定电杆整体吊装吊点位置，截面弯矩与其抗裂弯矩的最大比值显著降低，使电杆吊装抗裂安全度提高，表明用“弯曲应变能最小准则”确定锥形电杆倒落抱杆整体吊装最优吊点是有效的．
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| 关 键 词： | 钢筋混凝土电杆 安装 输电线路 弯曲应变能 |
| 文章编号： | 1671-4229(2004)03-0251-04 |
| 修稿时间： | 2003年12月10 |
The determination of the optimum restraint nodes on whole erection of the conical transmission pole |
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| LIU Shu-tang,LIU Zhi-yong,WU Jian-ping.The determination of the optimum restraint nodes on whole erection of the conical transmission pole[J].Journal og Guangzhou University:Natural Science Edition,2004,3(3):251-254. |
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| Authors: | LIU Shu-tang LIU Zhi-yong WU Jian-ping |
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| Institution: | LIU Shu-tang~1,LIU Zhi-yong~2,WU Jian-ping~3 |
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| Abstract: | The criterion the Minimum Bending Strain Energy is used to determine the optimum restraint nodes of the whole erection of the conical transmission pole with the inverted support and numerical algorithm used to search for the optimum solution of the variables. The results of engineering example have shown that erecting the conical pole by the restraint nodes determined by the criterion, leads to decreasing of the maximum ratio of the section bending moment to its resistant-crack moment and to increasing of the resistant-crack safe degree on the conical pole erection. The study verified that the criterion is efficient. |
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| Keywords: | reinforced concrete transmission pole erection transmission line bending strain energy |
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