Steel structure physical digital twin model construction method and device, equipment and medium

Abstract

The present application relates to the field of digital technology of civil engineering, and discloses a steel structure physical digital twin model construction method, device, equipment and medium, the method comprises: collecting multi-source point cloud data of the steel structure, and generating a complete point cloud model of the steel structure based on the multi-source point cloud data; extracting the complete geometric line model and the cross-sectional size of the steel structure from the complete point cloud model of the steel structure, and obtaining the measured material constitutive of the steel structure through a material property test; establishing a large-span space steel structure finite element model based on the complete geometric line model, the cross-sectional size and the measured material constitutive of the steel structure by using a finite element analysis software; correcting the finite element model based on the residual error between the measured data of the steel structure and the simulation data of the steel structure output by the finite element model, and taking the finite element model corresponding to the residual error less than a preset threshold as the physical digital twin model of the large-span space steel structure. The present application realizes millimeter-level geometric reduction, real material parameter correlation, lightweight and efficient calculation, and dynamic data correction.

Images