Current methods for assessing the technical condition of buildings increasingly rely on finite element modelling. At the same time, the reliability of the obtained results largely depends on how accurately the computational model represents the actual condition and spatial position of the structural elements. This issue is particularly relevant for buildings affected by accidental, seismic, and war-related impacts, where partial structural failure and residual deformations can significantly alter the behaviour of the structural system.
This study proposes a methodological approach to refining digital models of buildings based on engineering geodetic survey data. The approach was validated using a multi-storey building damaged by a missile strike as a case study. At the initial stage, a digital model was developed taking into account the destroyed structural elements. Engineering geodetic measurements of the floor slabs revealed fundamentally different deformation patterns: no significant deformations were detected below the impact zone, whereas the floor slabs above the impact zone exhibited substantial residual deformations.
The obtained geodetic data were used to refine the digital model by incorporating the actual spatial positions of the structural elements. The refined model significantly affected the results of the computational analysis, enabling more accurate identification of critical areas and influencing engineering decisions regarding the stabilization and subsequent restoration of the building. The results confirm the effectiveness of integrating engineering geodetic measurements into the digital modelling of buildings with significant localized damage.
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