Szukana fraza: [Abstract = "The expected solution is strengthening without the necessity to completely unload the structures \(to reduce the scope of works, the cost of modernization and to shorten the time\). The problem is presented on the example of a composite beam which was strengthened through welding a steel plate to the lower flange of the steel beam. The paper describes how energy parameters are used to evaluate the efficiency of structures' strengthening and proposes an appropriate solution."]

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