Identification of Simulated Damage in Prestressed Anchorage Using Admittance-Based Active Sensing Technique

This study examined the feasibility of admittance-based method for detecting simulated damage in bearing plate a prestressed anchorage. The proposed utilized PZT (lead zirconate titanate) interface technique to acquire strong admittance response from Firstly, numerical was demonstrated by presence fatigue cracks and preload changes fixed–fixed beam-like structure. Next, experimental verification carried out using lab-scale anchorage model. A prototype designed surface-mounted on plate. measured before after cases Afterwards, statistical metric, root-mean-square deviation (RMSD) used quantify change spectrum identify damage’s presence. It shown that consistent with simulation result same effective frequency band. Both results showed clear shifts due structural damage. damages were successfully identified RMSD evaluation metric.