After about eight months of design, analysis and implementation, the SERA SPIF (Seismic Performance of multi-component systems in special risk Industrial Facilities) shake table experimental campaign is entering its main testing phases. The objective of the project is to holistically investigate the seismic behaviour of industrial plants equipped with complex process technology by means of shaking table tests.
The necessity exists, since past earthquakes have demonstrated different critical interactions affecting such plants, namely interactions between the supporting structure and plant components as well as between individual plant components. The structural or process-related interactions not only lead to production losses, but can also lead to serious secondary damages and pose a danger to humans and the environment in case hazardous substances are released due to leakages.
The structure is a three-storey steel moment frame with vertical and horizontal vessels, arranged on the three levels with some of them connected to each other by steel pipes. Furthermore, an electrical cabinet and a typical conveyor system are installed. The three levels are constructed with flexible diaphragm made of steel beams. The test structure is equipped with sensor systems integrated into the structure for rapid damage assessment and is applicable to condition analyses or early warning systems.
The achieved results on the seismic behaviour of multi-component systems with mutual interactions can be used for probabilistic safety analyses in power plants (e.g. nuclear power plants) as well as in industrial plants (e.g. chemical plants). In addition, important findings can be derived for the definition of performance limits, the isolation of structural systems and components as well as for the use of sensor systems for rapid damage assessment.
Visit SERA Transnational Access Web Portal for updates.