Spatial reliability analysis of explosive blast load damage to reinforced concrete columns

摘要: Abstract Columns are the key load-bearing elements in frame structures and exterior columns probably most vulnerable structural components to terrorist attack. In this paper, a spatial reliability analysis is conducted predict damage for reinforced concrete (RC) subject explosive blast loading. The variability of material dimensional properties RC modelled by stationary non-stationary random fields. loading also taken into consideration. Monte Carlo simulation numerical methods used derive Blast Reliability Curves under number terrorism threat scenarios, based on high–fidelity physics-based computer programme LS-DYNA estimate design residual axial load-carrying capacity columns. It was found that has significant effect reliabilities model will lead more accurate predictions safety risks.