Engineer said no cables can be cut and there was no need to......the running traps had been working for 15 yrs prior. Common sense prevailed..
cables in a post tension plank are around 24'' apart and the all run in the same direction
cables in a slab run both ways and are 2' 0r 3' apart.
move the tub over 4'' and you miss a cable.
However at UCCS [University Colorado Colorado Springs } engineer said a certain amount could be cut. depending on location. because we were cutting the crap out of them on the honors Dorms. these were precast
with holes and cables