This study analyzed the correlation between the displacement behavior and damage of subway box structures, and suggested an analysis technique that can predict the location and scale of dam— age by comparing the results of visual inspection and fiel...
This study analyzed the correlation between the displacement behavior and damage of subway box structures, and suggested an analysis technique that can predict the location and scale of dam— age by comparing the results of visual inspection and field meas— urements with numerical analysis results.
In this study, the displacement function was derived based on the level measurement results and the subgrade modulus and the sectional force were calculated for each location through the con— tinuous elastic beam analysis applying the subgrade modulus as a boundary condition.
The numerical analysis performed in this study compared the stress calculated by applying the displacement function for each position of the subway box structure according to the continuous elastic beam theory and the location and size of the damage of the subway box structure derived from the visual inspection results, and the damage status and analysis results were estimated to be in relatively good agreement.
In addition, the 3D analysis results (the location and scale of damage to the subway box structures) were compared with the visual inspection results to prove the adequacy of the analysis
results.
Using the damage effect analysis technique presented in this study, the external boundary conditions that cause major deforma— tion of the subway box structure were calculated and the members and locations where damage could occur were analyzed as predictable.
Therefore, it was analyzed that repair and reinforcement at the correct location would be possible by predicting the location and scale of damage to the subway box structure using the evaluation method proposed in this study.