Analysis of the present condition of the bridge over Poljanska Sora in Gorenja vas

摘要

The thesis is focused on the analysis of the present condition of the bridge over PoljanskaudSora in Gorenja vas. Because the load-bearing structure is made from reinforced concrete,udthe first part of the thesis describes mechanical properties of concrete and reinforcementudand their mutual compatibility. After that, there is a description of processes and causes,udwhich influence on the deterioration of reinforced concrete structures. After the theoreticaludpart, there is a description of the bridge and a description of tests, which were made in orderudto define the present state of the structure. Tests are divided into two parts, field andudlaboratory tests. Field tests include description of the visible damages of the structure,udprocedure and the depth measurement results of the carbonation according to the Europeanudstandard SIST EN 14630:2007 and description of the concrete cored specimens drilingudaccording to the standard SIST EN 12504-1:2009. Taken coreds of the concrete fromudreinforced concrete parts of the bridge were analysed and described in the laboratory andudthen prepared for the further analyses and tests, which include tests for presence of chlorideudions at various depths, compressive strength measurements of the concrete in structuresudaccording to the European standard SIST EN 12504-1:2009 and the measurement ofudcarbonation depth in accordance with the same standard as for the field tests.udIn the last part of the thesis I have presented all completed tests and the final results as audpart of overall evaluation of the condition of the existing bridge construction over PoljanskaudSora.