Pavement Strategy Optimization of Cable-Stayed Bridges against the Negative Reaction Risks of Auxiliary Piers

نویسندگان

چکیده

Because the adjustment of stay cable tension and girder counterweight is limited at operation stage it a difficult problem to control negative reaction risk auxiliary pier (NRRAP) caused by multisource construction uncertainties traffic growth. This paper proposes pavement strategy optimization NRRAP adjusting thickness. The formulated as reliability-constrained, multiobjective problem, which resolved nondominated sorting genetic algorithm (NSGA-II). A sensitivity analysis reliability based on generalized regression neural network (GRNN) surrogate model were performed illustrate significance uncertainty level in reactions. Pareto front examines balance cost, driving comfort specified threshold. efficiency accuracy proposed method are validated real cable-stayed bridge, results exhibit its advantages controlling NRRAP.

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ژورنال

عنوان ژورنال: Applied sciences

سال: 2023

ISSN: ['2076-3417']

DOI: https://doi.org/10.3390/app13084877