Rehabilitation of the Ravbarkomanda viaduct

Magistrsko delo obravnava problematiko trajnosti in sanacij AB premostitvenih objektov. Predstavljeni so trenutni pristopi k projektiranju objektov iz vidika trajnosti, pri katerih smo ugotovili, da bi bilo za doseganje ustrezne trajnosti objektov standarde in predpise posodobiti. V osrednjem delu je predstavljen viadukt Ravbarkomanda, njegove pomanjkljivosti in njegova rehabilitacija. Na viaduktu smo izvedli meritve vibracij levega in desnega stebra, z namenom preverbe možnost izvedbe sanacije stebrov pod prometom, saj bi s tem znatno skrajšali čas delne delovne zapore. Iz rezultatov je mogoče sklepati, da izvedba ojačitve stebrov pod prometom ni priporočljiva, vendar pa zaradi omejenega časa in sredstev ni bilo mogoče izvesti večjega števila meritev. Za dokončen sklep, bi bilo potrebno izvesti dodatne raziskave.The master thesis deals with the problems of durability and rehabilitations of RC bridges. Current approaches to the design of durable RC bridges are presented and discussed. We have found out that, in order to achieve adequate durability, the standards and codes should be updated. In the central part, the viaduct Ravborkmoanda, its structural deficiencies and its rehabilitation are described. We carried out vibration measurements on a pier of the left and the right viaduct in order to review the possibility of pier rehabilitation under traffic load, as this would significantly reduce the duration of the partial roadblock. From the results it can be concluded that strengthening of the piers under traffic is not recommended, but due to limited time and funds, it was not possible to perform a larger number of measurements. For the final verdict additional research is needed