Radar tower frequency control and earthquake response analysis

Zeyu Wu; Yuhe Li; Fuming Wang; Dongwei Wang

doi:10.1117/12.852322

12 April 2010 Radar tower frequency control and earthquake response analysis

Zeyu Wu, Yuhe Li, Fuming Wang, Dongwei Wang

Proceedings Volume 7643, Active and Passive Smart Structures and Integrated Systems 2010; 76433D (2010) https://doi.org/10.1117/12.852322
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

For the sake of avoiding the impact of surrounding buildings on the radar, radar tower is usually high, generally up to 100 meters. As the radar performance reasons, the required fundamental frequency of radar tower should not be less than 1Hz. For such a tall building, how to control the frequency of radar tower is an issue worth studying. Through a lot of calculations and analyses, paper reaches a number of laws to increase frequency: 1) Lowering center of gravity of the structure; 2) Setting leaning bracing; 3) Raising the thickness or number of shear walls. In the above structural frequencies adjustment methods, setting leaning bracing and reducing the top mass of the structure are the most obvious effects of all. At the same time, paper also discusses on the seismic response of radar tower. Analyses used for earthquake are response spectrum method, time history analysis method and random vibration analysis. Three methods of calculation results show: radar tower performance meets China's seismic code to regulate specifications of the story drift limits.

Citation Download Citation

Zeyu Wu, Yuhe Li, Fuming Wang, and Dongwei Wang "Radar tower frequency control and earthquake response analysis", Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76433D (12 April 2010); https://doi.org/10.1117/12.852322

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