Post-tensioned beam anchorage details show tendon anchorages placed vertically at a construction joint with two number four back-up bars behind each anchor each way typically. Stress tails extend twelve to fourteen inches typically with a distance to center of gravity of steel varying. Support bars for beam tendons tie to column bars or stirrups. Spandrel beam sections show scheduled top and bottom reinforcement, minimum one and one-half inch clear to stirrups, and a number four support bar at four feet zero inches on center maximum. Tendon chairs with number four support bars position tendons within the beam width.
12" TO 14" STRESS TAIL (TYP.) VARIES DISTANCE TO C.G.S. (2)-#4 BACK-UP BARS BEHIND EACH ANCHOR EACH WAY (TYP.) 6" TYP. SUPPORT BARS FOR BEAM TENDONS TIE TO COLUMN BARS OR STIRRUPS ANCHORS PLACED VERTICALLY CONSTRUCTION JOINT NOTE: ENSURE SMOOTH TRANSITION FROM LAST STRAIGHT T/2 T/2 T #4 SUPPORT BAR @ 4'-0"O.C. MAX. SPANDREL BEAM DETAIL MIN. 1 1/2" CLEAR TO STIRRUPS TENDON CHAIR WITH #4 SUPPORT BARS SCHEDULED TOP REINF. BEAM WIDTH SCHEDULED BOTT. REINF. 5" O.C. APPROX.
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