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2020-06-09

EFEHR newsletter – sign up now!

EFEHR newsletter – sign up now!

EFEHR is a non-profit network of organisations aiming at advancing earthquake hazard and risk assessment in the European-Mediterranean area. The mission of this newly established consortium is to maintain and further develop the 2020 European Seismic Hazard and Risk Models. Initiated during the Joint Research Activities of SERA Project, these models are entering in their final stage of development before their release in autumn 2020. The EFEHR consortium will coordinate efforts with the community to review and provide feedback before the release of the models within the next months. Would you like to stay updated on the progress of the 2020 European Seismic Hazard and Risk Models?

Subscribe here to the EFEHR newsletter and stay informed! The newsletter will offer updates on the forthcoming workshops, preliminary and final results. It will be distributed up to four times a year, so no spamming; all the important information will be summarised in one compact e-mail.

2020-03-16

Shake table tests of a special risk industrial facility at EUCENTRE Laboratory

Shake table tests of a special risk industrial facility at EUCENTRE Laboratory

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.

2019-12-11

SlabSTRESS TA project at JRC ELSA Reaction Wall

SlabSTRESS TA project at JRC ELSA Reaction Wall

The SlabSTRESS Transnational Access project was successfully completed at the ELSA Reaction Wall. The team was comprised of 14 researchers from Politecnico di Milano (Italy), École polytechnique fédérale de Lausanne (Switzerland), Universitatea Tehnica de Constructii Bucuresti (Romania) and Universidade NOVA de Lisboa (Portugal).

The test specimen was a full-scale two-storey reinforced concrete flat-slab structure with plan dimensions 9x14 m. The testing programme included pseudodynamic tests (hybrid simulation of the physical specimen and numerical shear walls) with input corresponding to the Serviceability and Ultimate Limit States and quasi-static tests under imposed cyclic displacement with increasing amplitude (three slab-column joints were strengthened after the first cyclic test).

The project provided new knowledge on the response of flat-slab structures that could not be captured in previous tests on column-slab sub-assemblies. The results will help calibrate models, verify the Eurocode and Model Code models for punching shear, develop new rules for the deformation-based design and detailing of flat-slab structures subjected to earthquake and gravity loads, and improve the design of flat-slab frames as primary seismic structures.

19 research groups from 13 countries participate in the ongoing blind prediction competition.

Visit www.slabstress.org and follow them on ResearchGate for updates.

2019-12-04

SERA at the SEISMIX 2020 Symposium

SERA at the SEISMIX 2020 Symposium

The International Symposium on Deep Seismic Profiling of the Continents and their Margins (SEISMIX) is a biennial scientific meeting. Its next edition will take place in March 2020 in Perth, Australia. This symposium is the largest in its field and is focusing on control source and natural source imaging of the subsurface, from an exploration to a continental scale. It also addresses the latest technological and scientific developments in the application of seismic methods.

Researchers from the Institute of Earth Sciences Jaume Almera (ICTJA-CSIC) in Barcelona are presenting the latest and ongoing work related to SERA at the SEISMIX Symposium. The main aim is to disseminate the effort among the community and to stimulate discussions related to seismic data sharing and receiving input on new or desired services related to FAIR (findable, accessible, interoperable, and reusable) DSS (deep seismic sounding) data. Special focus will be devoted to the necessity of desired data products and services related to DSS, which could contribute to EPOS. In addition, the seismic database of ICTJA, in coordination with DIGITAL.CSIC (the digital repository of CSIC), will be presented as a prototype example of data management following the FAIR data principles. 

The SEISMIX Symposium will be an outstanding opportunity to make the work carried out within the framework of SERA and EPOS more visible, to discuss cutting edge developments in seismic data management outside Europe, and to reinforce and promote new network collaborations.

Events

Many conferences are postponed to 2021 due to the actual COVID-19 pandemic.

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