摘要
根据作者提出的纵向振动时高压输电塔体系的简化抗震计算模型 ,导出了一般振动方程 ,编制了高压输电塔体系抗震计算考虑导线影响的计算程序。经大量的输电塔体系地震反应分析 ,得出了导线的影响随跨度的增加而增大的结论。分析结果表明 ,按现行《电力设施抗震设施规范》设计的大跨越输电塔体系在强震作用下是偏于不安全的。最后 ,给出了输电塔体系纵向振动时考虑导线影响的界限 ,提出了输电塔 -导线体系纵向振动的简化抗震计算方法。
A calculation program is used to calculate the effects of lines on the in-plane vibration of high voltage transmission towers under the excitation of earthquake according to the simplified model of aseismic calculation of transmission tower presented by the authors. The results show that the effects of the lines are intensified as the span between two transmission towers increases and the span limit is determined according to the analysis of earthquake response of transmission tower. The simplified method of aseismic calculation is presented for the in-plane vibration of the transmission tower-lines system.
出处
《振动与冲击》
EI
CSCD
北大核心
2004年第2期1-7,共7页
Journal of Vibration and Shock
基金
国家自然科学基金 (599780 2 5)
教育部骨干教师基金
地震工程与工程振动开放实验室 (0 0 0 5)资助项目
