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Szukana fraza: [Abstrakt = "The fire which damaged Łazienkowski Bridge on 14 February 2015 resulted in the bridge, along with access ramps, including the post–tensioned prestressed concrete flyovers called the “Warsaw Forties,” being closed for traffic. Still before the fire, which damaged Łazienkowski Bridge, the structures experienced local damage, acts of vandalism and their technical condition deteriorated significantly. As if using the opportunity presented by the fire, the facility’s administrator decided to close Łazienkowski Bridge for traffic and to carry out the necessary repairs of post–tensioned prestressed concrete spans. The paper presents the description of the post–tensioned prestressed concrete structure of the Warsaw Forties flyovers, the major assumptions underlying the repair project, as well as the new challenges, both in the areas of design and implementation, which emerged as the work progressed. The paper describes the condition of the structure from before the repairs while relying on surveys of defects, material tests and the impact that the actual defects had on the structure’s load–bearing capacity. Essential results of the completed tests and analyses are presented, thus enabling determination of the bridge’s operating load capacity at the time when it was constructed, with an aim to use these findings during the repair works. The paper also presents the results of the analyses which were later used to determine the facility’s operating parameters upon completion of the repair works."]

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