Concrete-filled steel tube arch bridge construction monitoring method and system based on digital twinning

The invention discloses a concrete filled steel tube arch bridge construction monitoring method and system based on digital twinning, and relates to the technical field of arch bridge construction.The method comprises the steps that physical morphological characteristic data and mechanical property data of an arch bridge are obtained and preprocessed, and abnormal data are removed; constructing a virtual digital twinborn model, and determining an early warning threshold value of each component of the arch bridge; inputting the preprocessed physical morphological characteristic data and mechanical property data into a virtual digital twinborn model, and establishing an arch bridge entity digital twinborn model changing along with construction time; and comparing the data of the arch bridge entity digital twinborn model with an early warning threshold value to monitor the arch bridge construction process. Intelligent monitoring of the arch bridge construction process can be achieved, it is guaranteed that each