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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Failure Modeling of Bridge Components Subjected to Blast Loading Part II: Estimation of the Capacity and Critical Charge
Author(s): Russ Quintero, Jun Wei, Nestore Galati, and Antonio Nanni
Appears on pages(s): 29-36
Keywords: blast loading; bridge collapse; critical charges; dynamic damage model; explicit FEM; free air explosion; progressive collapse
Abstract:The purpose of this paper is the assessment of the capacity of the reinforced concrete (RC) elements of an arch bridge when they are subjected to contact and near-contact explosive charges of various amounts, and the estimation of the critical charges for these components. The bridge considered is the Tenza Viaduct, a decommissioned structure south of Naples, Italy. Its primary elements, deck, piers and arches were analyzed. The evaluation was accomplished via numerical analyses that made possible to obtain the elements dynamic response when they are exposed to blast loading conditions. To evaluate the member’s capacities, failure criteria for deck, piers and arches were proposed based on concrete damage parameters. Additionally, curves relating the explosive charge to the residual capacity and to damage level of the elements were also developed. The results of this work were taken into account to investigate the progressive collapse of the global structure.
IJCSM, International Partner Access.
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