Thanks everyone for support. I'm currently thinking about various ideas for such high windy roofs, including building of wind deflector.
If anyone else wants to install big dish on high building, check this document:
_ttp://www.cadfem.ru/data/62M.pdf
It is in russian, but pictures and numbers speak for themselves.
In short - this is example calculation of load received by 3.75m primefocus antenna, mounted on building roof with height of 40 meters, and wind speed of 35 meters/sec. You can skip directly to page #8, where's table of wind loads received by dish, during various directions of wind and dish location, are given. Numbers are in newtons. |