Title:
Component Model-Based Method for Damage Assessment of Reinforced Concrete Structures Subjected to Blast Loads
Author(s):
Ren Jiang
Publication:
Structural Journal
Volume:
123
Issue:
3
Appears on pages(s):
269-280
Keywords:
analytical model; damage assessment; explosion load; progressive collapse; reinforced concrete (RC) structure
DOI:
10.14359/51749496
Date:
5/1/2026
Abstract:
Traditional analytical models have commonly been employed to assess the progressive collapse performance of building structures subjected to seismic loads. However, little research has addressed the effect of initial damage to adjacent components following the failure of a key component under explosion loads. In this paper, a damage assessment method for reinforced concrete (RC) structures was proposed based on a component analytical model, accounting for damage to adjacent members resulting from close-in explosive scenarios. The reliability of the proposed analytical model was validated through comparison with experimental results in the existing literature. Besides comparing the damage levels of a five-story RC frame with those predicted by the proposed component models, the proposed assessment method based on components for predicting the damage degree of RC frames was validated to be reliable under a close-in explosion. The results indicated that the proposed analytical model could offer the advantage of not requiring a complex modeling process or the consideration of safety concerns associated with field explosion testing by comparing to numerical models of equivalent accuracy and experimental results.
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