Cubical Quad Antenna
Animated Quad and Yagi comparision CLICK
Here in Siberia we use antennas with console and guys (see picture). This solution gives a very good rigidity to an antenna.
We have a strong winds in Irkutsk-city (the city where I live) up to 25 meters/sec. Antennas built 15-20 years ago accorcing to this scheme still work fine.
To get dimensions for an antenna you want to build input your values.
It could be a very good idea to look through books mentioned above or look into L.B.Cebik's site to find out the best coefficients of spacing and reflector elongation which might meet your need.