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- W3161859440 abstract "Gradual changes of weight and geometry of vehicles combined with traffic values sometimes leads to old existing bridges having to be strengthened and retrofitted. The optimal solution to follow is based on the resistance capacity reserves of each structure, on the existing traffic level at the moment of retrofitting works and on the estimated future traffic. Almost all existing road bridges in Romania were designed according to national provisions/standards. Starting with 2010, following the European Community’s decision, the projects should be designed according to the Eurocodes and the existing bridges, must also comply with the new European load models. The process of checking existing bridges for the action of load models described in Eurocodes is a complicated task. However, the process for the evaluation of the bearing capacity reserves can be significantly simplified using a probabilistic approach. The approach presented in this paper is based on the effects, in terms of bending moments and vertical displacements, produced by several types of vehicles on the bridge superstructure. For presenting the use of this proposed methodology, typical bridge superstructures with precast concrete girders of different lengths were analyzed. The proposed methodology allows to establish the “vulnerability” of existing bridges on live loads." @default.
- W3161859440 created "2021-05-24" @default.
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- W3161859440 date "2021-10-01" @default.
- W3161859440 modified "2023-10-05" @default.
- W3161859440 title "Probabilistic estimation of the strength capacity of existing concrete bridges" @default.
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- W3161859440 doi "https://doi.org/10.1016/j.istruc.2021.04.075" @default.
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