Once in {TAIL ~ the ducts} of the structure, the strands are anchored and post tensioned as a tendon to develop {HEAD ~ the desired stress} 
Once in { TAIL ~ the ducts } of the structure , the strands are anchored and post tensioned as a tendon to develop { HEAD ~ the desired stress }
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD