Yes, contrary to popular belief. The current seismic code (NTC 2008) stipulates that buildings can be damaged during an earthquake. In fact, NTC 2008, in point 3.2.1, defines four limit states, of which only two affect ordinary buildings: Damage Limit State (DLS): following the earthquake, the building as a whole, including structural and non-structural elements, and equipment relevant to its function, suffers damage that does not put users at risk and does not significantly compromise its resistance and rigidity to vertical and horizontal forces, remaining immediately usable even if some of the equipment is interrupted; Life Safety Limit State (LVS): following the earthquake, the building suffers breakage and collapse of non-structural and system components and significant damage to structural components, associated with a significant loss of rigidity to horizontal forces; Instead, the building retains some resistance and stiffness for vertical loads and a safety margin against collapse due to horizontal seismic loads. Even for “seismic” structures, therefore, damage to the structure in the event of seismic events is to be expected. Therefore, it is wrong to assume that a structure defined as earthquake-resistant is immune to earthquake damage.
The data recorded by the BBOX seismic monitoring system enables an objective and reliable assessment of the damage, allowing the inspection engineer to make the best decision quickly.
The BBOX system therefore enables:
– minimising production downtime and the associated loss of revenue;
– resuming operations safely;
– optimising the resources required for any post-earthquake repairs;
– simplifying and speeding up the claims process with insurance companies.
Nowadays, an earthquake is a completely unpredictable event.
The BBOX seismic monitoring system can be effectively installed on any frame structure, whether made of concrete, steel or other materials.
The BBOX seismic monitoring system consists of:
-accelerometer sensors;
-one or more data acquisition units;
-cables for connecting the components.
Accelerometer sensors are fitted to the base and top of the monitored columns and, in the case of multi-storey buildings, also at the various floor levels.
The data acquisition units are positioned according to the client’s requirements.
No, you only need to monitor certain key areas.
The BBOX seismic monitoring system is an essential tool for the inspection engineer tasked with assessing a building following an earthquake:
-it enables the measurement of the ‘actual’ displacements of the structure subjected to the earthquake;
-it enables the inspection engineer to carry out an assessment even where structural elements are concealed by secondary finishing elements;
-the inspection engineer can rely on ‘actual’ measurements to support their assessments;
-it enables the inspection engineer to make decisions much more quickly.
No, the installation of the seismic monitoring system does not involve any structural alterations.
MOSI s.r.l.
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