| 行波激励下输塔-导线体系纵向地震反应分析 |
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| 引用本文： | 岳茂光,李宏男,王东升,翟桐.行波激励下输塔-导线体系纵向地震反应分析[J].中国电机工程学报,2006,26(23):145-150. |
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| 作者姓名： | 岳茂光 李宏男 王东升 翟桐 |
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| 作者单位： | [1]大连理工大学海岸及近海工程国家重点实验室,辽宁省大连市116023 [2]大连海事大学道路与桥梁工程研究所,辽宁省大连市116026 [3]中国地震局工程力学研究所,黑龙江省哈尔滨市150080 |
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| 基金项目： | 国家自然科学基金项目（59978025）;中国地震局“十五”重点项目子课题项目. |
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| 摘 要： | 基于所建立的输电塔一导线体系空间有限元模型．利用非线性时程分析法研究了体系在行波输入下纵向地震反应特性。并和一致地震动输入下的反应情况进行比较。结果表明：行波输入可增加也可降低输电塔的地震反应，这与行波波速、地震动性质都有关系：行波输入很大程度上增加了导线的轴力反应，随着行波波速的提高导线轴力逐步降低并接近于一致输入时的情况；行波输入强烈地放大了导线的纵向和竖向位移反应，特别是后者在近断层地震波输入时；输电塔一导线体系的地震反应受行波波速影响很大。
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| 关 键 词： | 输电塔-导线体系 地震反应 行波输入 一致输入 近断层地震动 行波波速 |
| 文章编号： | 0258-8013（2006）23-0145-06 |
| 收稿时间： | 2006-06-09 |
| 修稿时间： | 2006年6月9日 |
Longitudinal Response of the Power Transmission Tower-cable System Under Traveling Seismic Wave Excitations |
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| YUE Mao-guang , LI Hong-nan , WANG Dong-sheng , ZHAI Tong.Longitudinal Response of the Power Transmission Tower-cable System Under Traveling Seismic Wave Excitations[J].Proceedings of the CSEE,2006,26(23):145-150. |
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| Authors: | YUE Mao-guang LI Hong-nan WANG Dong-sheng ZHAI Tong |
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| Affiliation: | 1. State Key Laboratory of Costal and Offshore Engineering, Dalian University of Technology, Dalian 116023, Liaoning Province, China; 2. Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, Liaoning Province, China; 3. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, Heilongjiang Province, China |
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| Abstract: | Based on the established model of the power transmission tower-cable system,the seismic response of which is analyzed with time history method.Furthermore,the seismic response under traveling seismic wave excitations is compared with that under uniform excitations,the result indicates that:the traveling seismic wave excitation can increase,or decrease the seismic response of the transmission tower-cable system,which depends on both the traveling-wave velocity and the ground motion characteristic;the traveling seismic wave excitations increase the cable's axis force in a large scale,which will decrease gradually and is close to the case of uniform excitations along with the traveling wave velocity increasing;the traveling wave strongly magnifiy the cable's displacement response on the longitudinal and vertical,especially the latter is under the excitations of the near-fault ground motions;the traveling wave velocity has a great effect on the seismic response of the power transmission tower-cable system. |
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| Keywords: | power transmission tower-cable system seismic response traveling seismic wave excitation uniform excitation near-fault ground motions traveling-wave velocity |
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