SERA TA Project # 34

Title of Project:
Seismic performance of multi-component systems in special risk industrial facilities
Hosting Research Infrastructure:

No. of Users:

Team Leader:
Center for Wind and Earthquake Engineering (CWE)
Christoph Butenweg

University of Trento (DICAM)
Oreste S. Bursi

University Roma Tre – Department of Engineering
Fabrizio Paolacci

School of Civil Engineering of the NTUA of Athens
Michalis Fragiadakis

Philippe Renault

University of Belgrade, Faculty of Civil Engineering
Marko Marinković

Maurer Engineering GmbH
Johann Distl

Purdue University, Lyles School of Civil Engineering
Shirley Dyke

Wölfel Engineering GmbH
Max Gündel

Summary of Project:
The objective of the project is the holistic investigation of the seismic behavior of industrial plants equipped with complex process technology by means of shaking table tests. The necessity exists, since past earthquakes have shown that critical interactions can occur in these plants between the supporting structure and plant components, but also between the individual plant components. The structural or process-related interactions can lead to serious secondary damages which, in addition to loss of production, also pose a danger to humans and the environment if hazardous substances are released due to leakages. The proposed 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 pipes. Both firmly anchored and isolated components are taken into account to compare their dynamic behavior and interactions with each other. Furthermore an electrical cabinet and a typical pumping station are installed. The three levels are constructed with flexible diaphragm made of steel gratings. Optional bracing systems are applied to change the stiffness distribution and to cover the effects of eccentricities. Furthermore the effectiveness of two base isolation systems will be investigated. The test structure will be equipped with sensor systems integrated into the test structure for rapid damage assessment applicable for condition analyses or early warning systems. The achieved results on the seismic performance 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 and the use of sensor systems for rapid damage assessment. All results can be incorporated into the European standardization process.