Title:
A Component Model Based Method for Damage Assessment of RC Structures Subjected to Blast Loads (Prepublished)
Author(s):
Ren Jiang
Publication:
Structural Journal
Volume:
Issue:
Appears on pages(s):
Keywords:
analytical model; damage assessment; explosion load; progressive collapse; reinforced concrete structure
DOI:
10.14359/51749496
Date:
1/21/2026
Abstract:
Traditional analytical models have commonly been employed to assess the progressive collapse performance of building structures subjected to seismic loads. However, few studies 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 structures was proposed based on the component analytical model, taking into account damage to adjacent members caused by 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 reinforced concrete frame with those predicted by the proposed component models, the proposed assessment method based on components for predicting the damage degree of a reinforced concrete frame was validated to be reliable under a close-in explosion. The results indicated that the proposed analytical model can offer the advantage of not requiring a complex modelling process or the consideration of safety concerns associated with field explosion testing by comparing to numerical models of equivalent accuracy and experimental results.