The anchorage zone is the most crucial part of a post-tensioned concrete beam, and designing the reinforcement for the anchorage zone requires careful consideration. To design reinforcement in the anchorage zone, it is necessary to evaluate the bursting force, which can be calculated using equations provided in different design codes. However, modeling the actual anchorage plate remains a challenging task to correctly estimate bursting force. To overcome this issue, an anchorage zone with a three-strand multi-rectangular anchorage plate was analyzed in 3D using Finite element-based software to calculate the bursting force. A parametric study was conducted by varying the eccentricity (e) and anchorage ratio (k), and the resulting variation of transverse tensile stress, stress contour plot, and bursting force for the given plate was presented. The findings were also compared with the IS 1343 and AASHTO standard.