Analysis of Anchorage Zone Stresses in Post-tensioned Concrete Girders

Behavior of monostrand anchors in unbonded post tension flat slab system

“…Among the major problems in construction is that the concrete strength in situ might be lower than the specified design strength due to the lack of quality control. This multistrand anchor is vulnerable to the high stresses imposed by the stressed strands leading to overstresses in the anchorage zone [ 15 ]. In such cases, the contractor delays the stressing until the concrete reaches the specified concrete strength.…”

“…The average total forces following every loss, considering conventional setups, were deemed effective. According to “National Cooperative Highway Research Program” [ 15 ], in unbonded PT concrete, the most basic anchorage zone layout is centered to the concrete section.…”