Earthquake safety assessment method for fixed station antenna

The invention discloses an earthquake safety assessment method for a fixed station antenna, relates to a safety technology for the fixed station antenna in the fields of communication, measurement and control, radio astronomy and the like, and aims to provide an earthquake safety assessment method which is high in operability, conforms to engineering practice and is high in result credibility. The evaluation method mainly comprises the following steps: firstly, determining the seismic fortification intensity grade of an antenna, calculating the predominant period of an antenna field, and calculating actual and artificial simulation seismic waves according to the predominant period of the field; secondly, determining a calculated damping ratio and a load condition of the antenna and an elevation angle of the antenna; and finally, performing calculation by adopting a time-history analysis method, and respectively giving out safety evaluation of frequent and rare earthquakes according to calculation results. The