Compared to steel towers,prestressed concrete towers exhibit higher fatigue stability and can meet the construction requirements of complex terrains.Based on on-site monitoring data,a full-scale modeling of the tower struc-ture was performed using a concrete plastic damage model.By comparing the monitoring data with numerical simulation results,the influence of factors such as prestress loss,concrete deterioration,and apparent defects on the mechanical per-formance of the tower structure was investigated.The results indicate that the safety of prestressed concrete towers is in-fluenced by multiple factors.As the structure deteriorates,the stiffness of the tower gradually softens,and low-order modes have a significant impact on structural resonance.The damage mode of the tower structure tends to be tensile failure.
NETL
NSTL
万方数据
