not exactly sure on tri\s to be honest, but when ever i used to train for a big endurance type event in the mob, i used to drop the weights to once or twice a week with a low volume but intense FB, this always seemed to maintain at least and normally increase my strength whilst saving my energy for the running marching cycling what ever.
i imagine to start something like this would work
1 Run (or put your worst event here to get it out of the way, while at your strongest, change the other days accordingly)
2 FB A
3 Swim
4 Cycle
5 FB B
6 Brick, ie practise two event eg swim then cycle or cycle then run
7 Rest
FB A
squats
bench
SLDL
rows
FB B
deads
overhead press
Lunges
chins
3x5
hope that helps
