I agree with peterfuse, there is no such thing as Belgian IPA.. sure I've seen the term coined before, but it is to describe a hybrid brew, where you take something belgian and mix that with a classic english or american IPA.
A very simple approach would be to take an IPA recipe you like and keep every ingredients the same (malts & hops) but substitute the yeast for a belgian yeast. Be aware that there are many belgian yeasts to choose from thought.. Witbier, Abbey, Trappist, Saison, etc... But personnaly I would go for a belgian golden ale yeast....
Belgian yeast are for the most part very distinctive and this will definately give a belgian character to your IPA.