Research on Safety Influence of Prestressed Concrete Wind Turbine Tower Structure
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
