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- W3048249279 abstract "Since the terrorist attacks on 11 September 2001, structural resistance to explosion has received increasing attention. As bridges are controlling factors in traffic systems, explosion-induced bridge damage will cause great economic loss and social impact, but there is a lack of anti-explosion research for bridges. The purpose of this work was to investigate the failure modes and safety distances of cylindrical reinforced concrete (RC) bridge piers on highways and urban viaducts as a result of vehicle explosion. TNT equivalents were selected to represent explosions of five different vehicles (car, sport utility vehicle/van, delivery truck, water truck and semi-trailer). The multi-Euler domain method, was adopted for structural analysis of the explosion process using the commercial software Autodyn. The results showed that RC piers have three failure modes at the base: full-section punching-shear failure and large displacement; shear failure of full-section concrete; local shear failure of concrete. The explosion energy decayed rapidly with distance. For the five vehicle explosions, the safety distances were found to be 2 m, 3 m, 4 m, 8 m and 14 m, respectively. The results of this work are meaningful for explosion-resistant design and damage assessments of existing highway cylindrical RC piers subjected to vehicle explosion." @default.
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- W3048249279 date "2022-04-01" @default.
- W3048249279 modified "2023-10-14" @default.
- W3048249279 title "Safety distances of cylindrical reinforced concrete piers under vehicle explosion" @default.
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- W3048249279 doi "https://doi.org/10.1680/jstbu.19.00080" @default.
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