Vulnerability and rehabilitation of masonry buildings
Many existing masonry buildings in the old urban centers in Algeria are built of stone masonry (URM masonry buildings) and represent cultural heritage. These buildings were built to resist gravity loads only and generally have poor resistance to lateral seismic loads.
Risk reduction necessarily involves seismic vulnerability assessment and is, therefore, the first necessary step in developing seismic strengthening of existing buildings. This concern lead to the development of vulnerability assessment methods, the main objective is to be able to assess the bearing capacity of this type of structures to withstand the demand in terms of seismic actions.
Vulnerability and rehabilitation of reinforced concrete buildings.
In order to avoid serious damages to the existing structures, the authorities of the country should be aware of the generated risk and in order to have the necessary elements that let them to know and estimate the potential losses in advance, with an acceptable error, and to take the necessary counter measures in order to invest into seismic upgrade, strengthening and retrofitting of those existing structures.
Different vulnerability studies, methodologies and materials have been carried out on reinforced concrete structures, and it would be wise to learn and enrich them.
Vulnerability and rehabilitation of bridges structures
Like other countries, Algeria has a quit significant heritage of bridges, especially those whose operating period dating back to several years. Hence, protecting bridges and maintaining their functionality is vital not only for the evacuation and rapid delivery of relief in the event of a natural disaster, but also because of their socio-economic and strategic role. In other words, functionality of these structures neither should be interrupted by moderate earthquakes, nor should be partially collapsed. As a result, seismic vulnerability assessment of bridges is an ongoing and major concern for public authorities.