| 考虑刚度折减的多棱锥型套接钢管杆挠度及附加弯矩研究 |
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| 引用本文： | 潘峰,陈远,蔡勇,包玉南,徐锃.考虑刚度折减的多棱锥型套接钢管杆挠度及附加弯矩研究[J].计算力学学报,2023,40(6):1008-1015. |
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| 作者姓名： | 潘峰 陈远 蔡勇 包玉南 徐锃 |
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| 作者单位： | 中国能源建设集团浙江省电力设计院有限公司, 杭州 310012;大连海事大学土木工程学系, 大连 116026;国网浙江省电力有限公司, 杭州 310007 |
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| 基金项目： | 国家自然科学基金(51878607)资助项目. |
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| 摘 要： | 多棱锥型钢管杆广泛应用于城市周边输电线路，管与管之间通常采用法兰连接，套接连接应用不大。鉴于目前对于多棱锥型套接钢管杆挠度的计算方法研究相对较少，本文根据梁的挠曲线微分方程理论，结合套接节点刚度折减，推导出在常见荷载(弯矩M、水平力P和均布力q)作用下多棱锥型套接钢管杆挠度和附加弯矩的计算方法。最后，选取典型套接钢管杆进行对比分析，得出了一些重要结论。本文对套接钢管杆挠度计算进行细致的研究，可作为输电线路钢管杆套接连接设计的参考
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| 关 键 词： | 输电线路 拔梢钢管杆 套接 截面惯性矩 挠度 附加弯矩 |
| 收稿时间： | 2022/5/27 0:00:00 |
| 修稿时间： | 2022/7/24 0:00:00 |
Study on deflection and additional bending moment of slip-joint connection for multi-pyramidal steel pole considering stiffness reduction |
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| PAN Feng,CHEN Yuan,CAI Yong,BAO Yu-nan,XU Zeng.Study on deflection and additional bending moment of slip-joint connection for multi-pyramidal steel pole considering stiffness reduction[J].Chinese Journal of Computational Mechanics,2023,40(6):1008-1015. |
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| Authors: | PAN Feng CHEN Yuan CAI Yong BAO Yu-nan XU Zeng |
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| Affiliation: | Zhejiang Electric Power Design Institute, Hangzhou 310012, China;Department of Civil Engineering, Dalian Maritime University, Dalian 116026, China;State Grid Zhejiang Electric Power Company, LTD, Hangzhou 310007, China |
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| Abstract: | Multi-pyramid steel pipe poles are widely used in transmission lines around cities.A flange connection is usually used for pipe to pipe connection,and slip-joint connection is not widely used.In view of the relatively few research on the calculation method of deflection of multi-pyramid steel pipe poles,this paper will derive the common load (bending moment M,horizontal force P and uniformly distributed force q) according to the theory of differential equation of the deflection curve of a beam and the reduction of stiffness of a slip-joint joint and additional bending moment of a multi-pyramid slip-joint steel poles.Finally,typical nested steel pipe rods are selected for comparative analysis,and some important conclusions are drawn.This paper makes a detailed study on the deflection calculation of slip-joint steel poles,which can be used as a reference for the design of slip-joint connections of steel poles of transmission lines. |
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| Keywords: | transmission line steel pole slip-joint connection Section moment of inertia deflection additional bending moment |
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