论文部分内容阅读
针对大跨越输电塔在不同风向角的动风作用下的动力响应,提出了一种橡胶铅芯阻尼器用于风振控制,并研究了大跨越输电塔的最不利风向角,及其横线向和顺线向的振动情况。研究表明,加设橡胶铅芯阻尼器后大跨越输电塔-线体系的位移、内力响应均有较大幅度的降低;同时位移响应与内力响应的最不利风向角不一定相同;各风向角动风作用下均会引起塔-线体系的横线向振动和顺线向振动。研究成果为将来类似的工程应用提供了参考。
Aiming at the dynamic response of long-span transmission tower under the action of moving wind with different wind direction angle, a rubber lead core damper is proposed for wind-induced vibration control. The most unfavorable wind direction angle of long- Heshun line to the vibration situation. The research shows that the displacement and internal force response of the large-span transmission tower-line system with the rubber lead-core damper are greatly reduced, and the most unfavorable wind direction angles of displacement response and internal force response are not necessarily the same. Wind will cause the tower - line system of horizontal and vertical vibration to the line. The research results provide references for similar engineering applications in the future.