Prevention and Solutions of Concrete Cracks in Cast-in-Place Box Girder

Cracks in cast-in-place box girder concrete are a complex problem, with various causes and treatment methods, mainly involving multiple aspects such as materials, construction, and design. The formation of cracks can be attributed to two types of internal and external factors. Internal factors include material shrinkage deformation, temperature changes, and construction processes, while external factors include load effects, moisture infiltration, and earthquakes. In order to effectively control and deal with these cracks, comprehensive treatment from multiple perspectives is needed. This article examines ways to enhance the accuracy of predicting concrete crack formation by analyzing the influencing factors. During construction and maintenance, a series of measures are implemented to control the onset and progression of concrete cracks. Additionally, the article discusses ways to strengthen communication and collaboration in engineering practices, and to advance the application of concrete crack control technology. Finally, the article underscores the importance of strengthening quality control and supervision mechanisms to ensure the correct implementation of control measures and the validation of their effectiveness. These findings are crucial for improving the longevity and durability of bridge structures.