Structural monitoring services

Structural monitoring services for the verification of large structures such as civil buildings historical buildings, platforms, bridges and viaducts, dams. Thanks to our tools we are able to make an in-depth analysis of your structure.

Structural dynamic monitoring services

Dynamic monitoring is suitable for verifying the structural health and performance of large structures (dams, railway lines, bridges, subway lines, historic buildings, platforms, etc.).

The objective of the investigation is the dynamic characterization of the structure through the identification of its vibration eigenfrequencies, eigenmodes and related damping.
A dynamic vibrational monitoring allows to measure the accelerations and displacements that a structure undergoes due to natural or induced events, such as due to neighboring construction sites.

A dynamic monitoring system is based on a series of accelerometers or velocimeters placed on the structure, connected to a data acquisition system.

Acquisitions can be conducted in terms of accelerations, velocities or displacements of different points of the structure under investigation. Data can be acquired in continuous or event-based mode.

In the case of dynamic analysis of own frequencies are recorded in continuous mode, while for the measurement of vibrations or accelerations usually recordings are to "event", with setting thresholds of pre-alarm or alarm, in accordance with international standards of reference.

Why perform a dynamic monitoring on a building?

A dynamic monitoring can be conducted for:

Measure the vibrations induced by the work

installation on the building of a velocimeter (seismometer class I)

NORMATIVE UNI9916

Measure the disturbance to persons

installation of a triaxial accelerometer inside the house

NORMATIVE UNI9614

Dynamic monitoring can also be conducted to:

UNDERSTAND THE MODAL PARAMETERS OF A STRUCTURE (eigenfrequencies, damping, modal shapes).

Allows the CALIBRATION OF STRUCTURAL FINITE ELEMENT MODELS (FEM models) that can be used for:

evaluation of the seismic vulnerability of the structure design of any interventions
identification of the causes that may have determined changes in dynamic behavior.

Specific processing for every need

Early warning system:

the system communicates in real time the exceeding of preset thresholds through light and sound signal, or via e-mail/message.

• Quick dynamic analysis:

When the threshold is exceeded, a so-called "event" is identified
An FFT is performed for portions of signals of interest
The 3 values (2 horizontal, 1 vertical) are placed on the frequency/velocity graph according to DIN4150.

Applications

Civil buildings

Historical buildings

Platforms

Bridges and viaducts

Dams

Advantages of dynamic monitoring:

Repetitions of the test over a period of time allows identification of changes not always detectable with static monitoring.

Greater understanding of damage
Triggering of safety alarms based on the threshold
Early warning system for civil buildings
Structural design improvements
Repair and maintenance strategy to be developed based on target.

Case
history

Discover all our projects >

Platforms monitoring

Realization of dynamic monitoring systems for the measurement/calculation in real-time of the modal frequencies of vibration of oil platforms and for the measurement of differential displacements, integrating meteorological and marine measurements.
Solgeo has monitored for ENI the five platforms LOANGO (Congo), and GELA 1.

Seismic early warning system On the high-speed rail

Solgeo was responsible for the supply and installation of an Early Warning Seismic System (EWS) on the high-speed rail between Rome and Naples, for the client RFI.