Reinforcement solution of damaged load-bearing frame structure in a coal power plant for additional loads

Author:

Skibicki Szymon1ORCID,Wróblewski Tomasz1ORCID,Paczkowski Wiesław1ORCID,Kozieł Krzysztof2ORCID,Matyl Marcin2ORCID,Wisniowski Maciej3ORCID

Affiliation:

1. West Pomeranian University of Technology in Szczecin, Faculty of Civil and Environmental Engineering, al. Piastów 50a, 70-311 Szczecin, Poland

2. Optimal Design of Structures Krzysztof Kozieł, ul. Na Piasku 12a, 44-122 Gliwice, Poland

3. Silesian University of Technology, Faculty of Civil Engineering, ul. Akademicka 2A, 44-100 Gliwice, Poland

Abstract

Significant subsoil deformation and additional loads from the new denitrification unit caused a major problem with the load-bearing capacity of the coal power plant. It was necessary to perform an advanced assessment of the technical condition of the structure. Laser scanning (LiDAR) were used to obtain detailed data upon structure. Based on the analysis of the point cloud, the location of the column axes was determined, which allowed to determine the global and local displacements of the structure. Spatial models of the structure were created. Non-linear analyses of the structure were carried out using two types of models: 1) global beam-shell 3D models of the boiler room used to calculate the magnitude of internal forces and deformations of the structure; 2) local beam-shell detailed models of selected structural elements. Based on the results of the calculations, necessary reinforcement of the structure was designed and successfully implemented. Advanced analysis of the structure using laser scanning, subsoil monitoring and complex numerical models made it possible to perform only local reinforcements of the entire complex structure.

Publisher

Polish Academy of Sciences Chancellery

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