Sorin Dan

Modern Solutions for Rehabilitation of Old Reinforced Concrete Structures

The paper deals with the results and design recommendations obtained from an experimental programme and its application on a structural rehabilitation. The experimental programme presents the strengthening effect of RC columns by coating with new RC jacketing. Methods of increasing bond between old and new concrete are analysed: no bonding agent; surface chemical bonding agent; mechanical fixed connectors; chemical fixed connectors. The analysed strengthening solutions are applied on an existing four storeys RC framed structures built in 1940 and located in a seismic zone. The structure presents poor quality concrete, poor reinforcement detailing and weakness of reinforcement at present-day magnitude of seismic action. As the owner requirement was to build two more storeys, some rehabilitation solutions were adopted: RC jacketing of foundations and columns; CFRP jacketing of beams and slabs.

Rehabilitation of the Banatul Museum, Timisoara, Romania : Restoration of Historical Structures

The Banatul Museum, known as Huniade-Castle, is one of the most important historical buildings in Timisoara, Romania. Poor soil conditions and soil water levels had affected the castle building which was re-erected or rehabilitated many times. In the case of rehabilitating an historical building, the final decision has to take into account the architectural requirements, among them, the geometrical proportions and the principal facades. These requirements have been fulfilled by the rehabilitation project. The rehabilitation solution for the Banatul Museum building is based in the idea of enlarging the structural stiffness of the building by increasing the physical and mechanical properties of some component members of the structure.