Il 75% of the Italian building stock was built prior to 1974, the year of the first specific national law regarding anti-seismic constructions, therefore it was created without taking into account the principles of seismic design.
Adapt existing buildings, with reference to new classes of seismic risk (based on the criteria of danger, vulnerability and exposure to the event) and in the light of the most recent technologies employed in the sector, it turns out to be of primary importance for the health of buildings and inhabitants.
Condominium to renovate? The signs to consider.
There are several signals who can testify a structural deterioration of the condominium and therefore an increased level of danger in the face of a seismic event.
Le crepe they represent the most frequent alarm bell for a building problem. To understand the gravity and therefore the danger it is appropriate evaluate its shape, size, location and also i changes over time.
also the oxidation of the reinforcing bars are signs of deterioration of reinforced concrete buildings. Structural problems can also arise from water infiltration and then from corrosive phenomena in progress, signaled by humidity, mold and swelling of the plaster.
Even more troubling are the creaking resulting from thermal expansion of materials or mechanical and structural vibrations. Each signal should not be underestimated but interpreted to verify the need for one anti-seismic renovation of the condominium. In fact, specific anti-seismic interventions can be carried out on reinforced concrete buildings to make the building safe.
How can you intervene on a condominium?
La anti-seismic renovation of a dwelling may relate to the restoration of full functionality, operating on individual items or portions of the construction, or by making modifications to the supporting structure as expansions and volumetric increases.
After a careful evaluation of the condominium situation, the more frequent interventions they concern work to introduce seismic joints able to increase the elasticity of the structure in case of seismic events or passive systems such as seismic isolators placed between the foundations and the remaining structure.
Un non-invasive seismic intervention is the one achieved thanks to the active anti-seismic device made by ISAAC: installing this system of seismic protection counteracts the oscillations of the structure during the earthquake to safeguard the building.
These interventions guarantee a adequate level of security of the condominium.
What are the administrator's powers to proceed with the renovation of an apartment building?
Any damage to the condominium, that can raise doubts about the need for an anti-seismic renovation, may be highlighted by each condominium o by the administrator itself, especially in case of imminent danger. Just think of rubble or cracks found in the building and all those cases in which a delay can increase the spread of damage.
Un director can act independently when the operations are necessary to ensure the safety of the building for its inhabitants. In all other situations which require more complex structural interventions is the resolution of the assembly of condominiums is necessary on the work to be carried out, against cost estimates submitted by the administrator.
This usually leads to construction sites and disturbing noises that last for several days, unless you choose to opt for an active anti-seismic isolation system which, in order to be mounted, causes minor construction site noise problems.
