Stress and Deformation Monitoring and Optimization in Bridge Construction Stage Based on BIM Technology

With the acceleration of urbanization, bridges, as an important part of transportation infrastructure, have attracted much attention to their construction quality and safety. At present, traditional construction methods have many shortcomings in stress and deformation control. In response to this problem, this study provides a new solution for bridge construction by introducing building information modeling (BIM) technology. Based on BIM technology, stress and deformation monitoring during bridge construction stages is optimized to improve construction accuracy and safety. This study first establishes a BIM model of the bridge, and predicts the stress and deformation during different construction stages by simulating the construction process. On this basis, a real-time monitoring system is designed to combine sensor technology and data acquisition to achieve real-time monitoring of stress and deformation during bridge construction. The experimental results show that compared with traditional methods, the use of BIM technology reduces stress prediction error by 20% and deformation prediction error by 15%. Based on the optimization strategy of the BIM model, by adjusting the construction sequence and optimizing the construction parameters, the problems of stress concentration and excessive deformation during the construction process are effectively reduced. By optimizing the construction sequence, the peak stress is reduced by 25%; by adjusting the construction parameters, the maximum deformation was reduced by 30%. The research on stress and deformation monitoring and optimization during bridge construction based on BIM technology not only improves the controllability of the construction process, but also provides a new technological path for the field of bridge construction.