Journal of Engineering Research

Prestressed concrete bridges experience significant long-term deformation over their service life due to factors such as temperature changes, humidity, and stress release within the structure. Accurately predicting and effectively controlling these deformations is crucial for ensuring the safety and performance of bridge structures. This paper focuses on the long-term deformation mechanisms of prestressed concrete bridges, combining numerical simulations with field monitoring data to propose a multi-factor coupled deformation prediction model. Additionally, it explores control strategies tailored to different deformation characteristics, aiming to achieve scientific management and extended service life of the structure. The research findings provide theoretical basis and technical support for bridge design, maintenance, and management.

Prestressed concrete; Long-term deformation; Prediction model; Deformation control; Structural safety