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Continuous monitoring of the dynamic behavior of a high-rise telecommunications tower

机译：持续监测高层电信塔的动态行为

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This article describes the experimental evaluation of the dynamic effects induced by wind on a high-rise telecommunications tower based on a permanent monitoring system. Monte da Virgem telecommunications tower is located near the city of Porto (Portugal), and its structure consists in a reinforced concrete shaft and a steel mast, with a total height of 177 m. The monitoring system includes accelerometers, anemometers, and a meteorological station, allowing the characterization of the maximum accelerations of the structure and wind regimes during a period of 6 months. The analysis of the results enabled identifying specific events, denominated as critical events, for which the dynamic response of the tower under wind actions appears significantly amplified due to wind aeroelastic instability phenomena in the steel mast. The automatic identification of the critical events was based on the application to the acceleration's records of an autoregressive model and estimation of its optimal order number based on a singular value decomposition. The results proved the robustness and efficiency of the proposed technique in identifying the number, duration, and maximum amplitude of accelerations associated to the critical events, envisaging its potential integration in structural health monitoring systems.
机译：本文介绍了基于永久监测系统对高层电信塔上的风力诱导的动态效应的实验评价。 Monte Da Virgem电信塔靠近波尔图市（葡萄牙），其结构包括钢筋混凝土轴和钢桅杆，总高度为177米。监测系统包括加速度计，风光仪和气象站，允许在6个月的时间内表征结构和风力方案的最大加速度。通过钢桅杆中的风气气泡稳定性现象，塔塔的特定事件的分析能够识别为关键事件的特定事件。关键事件的自动识别基于对自动评级模型的申请以及基于奇异值分解的自动评级模型的记录和其最佳订单号的估算。结果证明了所提出的技术在识别与关键事件相关联的加速度的数量，持续时间和最大幅度的鲁棒性和效率，设想其在结构健康监测系统中的潜在集成。

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