Reinforcement Assessment of Welded Frames for Metallic Structures

摘要

This paper presents reinforcement assessment of welded frames for metallic structures in order to increase their bearing capacity. It is analysis the consolidation of a welded frame with finite element modeling and experimental determinations using electric resistive tensometry method. Welded frames were obtained from "I" profiles. There is specified equipment and apparatus used, methods of analysis, testing and examination and results are detailed. This refers to the stress and strains measured by strain gauges applied to loaded welded structures, the results of mechanical tests and the results of non-destructive examination (passive thermography method). Finite element modeling has enabled reinforcement solution optimization of welded frame in order to stress reduction in critical points based on strain and stress solutions. Validation of reinforcement solutions of welded frames obtained by finite element modeling was done experimentally by electrical resistive tensometry method. Tensometry measurements results were correlated with finite element modeling results.