【摘要】 利用有限元分析软件ANSYS,以跨越珠江的输电线路工程为研究背景,在输电塔上布置粘滞消能阻尼器和调谐质量阻尼器(tuned mass damper,TMD),对比分析了在三向El-Centro地震波作用下有、无减震控制措施的输电塔位移和加速度地震响应。通过有关参数分析计算,分别得到了粘滞阻尼消能减震和调谐质量减震控制的最优粘滞阻尼系数和最优TMD质量,分析研究表明上述2种减震控制措施皆能明显衰减输电塔线体系的地震响应,具有比较理想的减震效果。更多还原

【Abstract】 By using of finite element analysis software ANSYS and taking the power transmission line crossing over the Pearl River as the background of research, under the condition that the viscous-damper energy dissipater and Tuned Mass Damper (TMD) are arranged or not on the transmission tower, the displacement and the acceleration of the tower are compared and analyzed under the three-dimensional earthquake waves (El-Centro). By means of analysis and calculation of related parameters, the optimal viscous-damper energy coefficient of viscous-damper energy dissipater and the optimal TMD mass of Tuned Mass Damper are respectively obtained. Analysis results show that the two seismic measures are effective in seismic control of large crossing transmission towers.更多还原