| 多点输入下大跨越输电塔结构抗震性能时程分析 |
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| 引用本文： | 杨付刚,孙建梅,胡启平.多点输入下大跨越输电塔结构抗震性能时程分析[J].电力建设,2010,31(4):1-4. |
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| 作者姓名： | 杨付刚 孙建梅 胡启平 |
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| 作者单位： | （1.河北工程大学，河北省邯郸市，056038；2.上海电力学院，上海市，200090） |
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| 基金项目： | 上海市自然科学基金资助项目，上海市优秀青年教师基金资助项目，上海市教育委员会科研创新项目 |
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| 摘 要： | 采用时程分析法系统地分析了多点输入下大跨越输电塔结构的地震响应，分析了在不同视波速下地震对大跨越输电塔位移、扭转效应、塔柱和腹杆最大压应力的影响。研究表明：多点输入下地震对结构扭转效应非常明显，对塔柱底部杆件内力影响较大，与一致输入下相比杆件进入塑性的数量较大。
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| 关 键 词： | 大跨越输电塔 一致输入 多点输入 时程分析法 |
Seismic Behaviour Analysis of Long Crossing Transmission Tower under Multiple Support Excitation |
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| YANG Fu-gang,SUN Jian-mei,HU Qi-ping.Seismic Behaviour Analysis of Long Crossing Transmission Tower under Multiple Support Excitation[J].Electric Power Construction,2010,31(4):1-4. |
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| Authors: | YANG Fu-gang SUN Jian-mei HU Qi-ping |
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| Affiliation: | 1.Hebei University of Engineering,Handan 056038,Hebei Province,China;2.Shanghai University of Electric Power,Shanghai 200090,China) |
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| Abstract: | Seismic response analysis is done by using time history analysis method in long crossing transmission tower under multiple support excitation.The impact of the earthquake under five apparent velocities on displacement,torsion and axial stresses in main legs and web members of the long crossing transmission tower was analyzed.The results show that the structure develops larger torsion under multiple support excitation,members on the bottom and plastic member of the long crossing transmission tower are greater under multiple support excitation than simple support excitation. |
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| Keywords: | long crossing transmission tower simple support excitation multiple support excitation time history analysis method |
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