SAFETY PROBABILITY ASSESSMENT OF COMPRESSIVE TOP CHORD OF STEEL PONY TRUSS BRIDGES USING HYPERCUBE LATIN SAMPLING AND MONTE CARLO SIMULATION

Autor: Nguyen Trong Ha, Tran Anh Nghia
Jazyk: English<br />Vietnamese
Rok vydání: 2024
Předmět:
Zdroj: Tạp chí Khoa học, Vol 53, Iss 1A, Pp 17-25 (2024)
Druh dokumentu: article
ISSN: 1859-2228
DOI: 10.56824/vujs.2023a155
Popis: The steel pony-truss bridge is a structure commonly used in road and rail traffic. It has a simple structure, a large bearing capacity, and high economic efficiency. The safety of steel pony-truss bridges is highly dependent on the stability conditions of the top chord. This paper presents the reliability assessment of the compressive top chord of steel pony truss bridges according to stability conditions. For this purpose, a deterministic model was built from the stability conditions of the compressive top chord; then, a stochastic model was established based on the deterministic model, in which the structural geometries and material properties are random parameters. Finally, the reliability of the structure is evaluated using Hypercube Latin sampling and Monte-Carlo simulation.
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