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RC Book: Design of Reinforced Concrete Buildings for Seismic performance
METIS: Methods and tools innovations for seismic risk assessment
YADES: Training on improved resilience and sustainable reconstruction of cultural heritage areas
HYPERION: Improved resilience and sustainable reconstruction of historic areas
NSFuse: Ductile steel fuses for the protection of critical nonstructural components
PANOPTIS: Decision support system for increasing the resilience of transportation infrastructure
iDesign: Enabling Seismic Design Decision-Making under Uncertainty
ARCHYTAS: Archetypal telemetry and decision support system for the protection of monumental structures
INFRASTRESS: Improving resilience of sensitive industrial plants & infrastructures exposed to cyber-physical threats
DISSIPABLE: Fully dissipative and easily repairable devices for resilient buildings with composite steel concrete structures
STEELWAR: Advanced structural solutions for automated steelrack supported warehouses
ANGELHY: Innovative solutions for design and strengthening of telecommunications and transmission lattice towers
EQUALJOINTS-PLUS: Valorisation of knowledge for European pre-qualified steel joints
ATC-120: Seismic analysis and design of nonstructural components and systems
Reliability of Coupled High-Speed Trains and Bridges Under Earthquakes
INNOSEIS: Valorisation of innovative seismic devices
SeaWind: Performance-based design of offshore wind turbines
Seismic Vulnerability Guidelines Development and Seismic Vulnerability Functions
Risk assessment for the seismic protection of industrial facilities

RC Book—Design of Reinforced Concrete Buildings for Seismic performance
Title Design of Reinforced Concrete Buildings for Seismic performance:
Practical, deterministic and probabilistic approaches
Authors M.Aschheim, Santa Clara University, CA
E.Hernandez-Montes, University of Granada, Spain
D.Vamvatsikos, NTU Athens
Publisher CRC Press, 2019
Book Cover The costs of inadequate earthquake engineering are huge, especially for reinforced concrete buildings. This book presents the principles of earthquake-resistant structural engineering, and uses the latest tools and techniques to give practical design guidance to address single or multiple seismic performance levels.

It presents an elegant, simple and theoretically coherent design framework. Required strength is determined on the basis of an estimated yield displacement and desired limits of system ductility and drift demands. A simple deterministic approach is presented along with its elaboration into a probabilistic treatment that allows for design to limit annual probabilities of failure. The design method allows the seismic force resisting system to be designed on the basis of elastic analysis results, while nonlinear analysis is used for performance verification. Detailing requirements of ACI 318 and Eurocode 8 are presented. Students will benefit from the coverage of seismology, structural dynamics, reinforced concrete, and capacity design approaches, which allows the book to be used as a foundation text in earthquake engineering.
Websites Online resources: Examples, source code, records & tools
Manuscsript: The actual book from the publisher

 

METIS—Methods and tools innovations for seismic risk assessment
Project Funding European Commission - Nuclear Fission and Radiation Protection Research
Horizon 2020
NFRP-2019-2020-03
Collaborators Electricite De France
EDF Energy R&D UK Centre Limited
Limited Liability Company Energorisk
Fondazione GEM
Helmholtz Zentrum Potsdam Deutschesgeoforschungszentrum GFZ
GDSIS
Unstitut de Radioprotection et de Surete Nucleaire
Instituro Univeritario di Studi Superiori di Pavia
LGI Consulting
National Technical University of Athens - NTUA
State Enterprise State Scientific and Technical Center for Nuclear and Radiation Safety
Technische Iniversitaet Kaiserslautern
Univerza V Ljubljani
Geo-Research Institute
North Carolina State University
Pacific Earthquake Engineering Research Center
Time period Sep 2020 - Aug 2024


www.metis-project.eu

The proposed project intends to translate research to practice through rigorous and efficient methodologies and tools to assess seismic safety of NPP. It also has the aim to innovate current practice by supporting simulation results with experimental data and experience feedback in the framework of Bayesian approaches and machine learning. The research will develop methods to improve the predictability of (non linear, best-estimate) beyond design analyses (design extension earthquakes). The refined seismic PSA provides meaningful support in the decision making process and could be useful for real time expertise of plant safety in case of temporary unavailability of safety relevant equipment or structures. It is also proposed to develop efficient tools to identify major contributors to risk such that efforts to increase safety and resistance are focused on relevant equipment. The outcome will thus increase the reliability of the analyses and in turn increase confidence in the probabilistic and deterministic safety assessment results. The results of this project will then help nuclear operators in their periodic safety reviews and to respond to the high-level EU-wide safety objectives of the amended EURATOM nuclear safety directive (stress tests). The considered accident scenarios will provide input for updating severe accident management guidelines (SAMG).

Relevant publications

 

YADES—Training on improved resilience and sustainable reconstruction of cultural heritage areas
Project Funding EU Research Executive Agency
Marie Sklodowska-Curie Reseasrch and Innovation Staff Exchange
H2020-MSCA-RISE-2019
Collaborators National Technical University of Athens - NTUA
UAB Metis Baltic
Resilience Guard GmbH
Environmental Reliability and Risk Analysis
Geomatics (Cyprus) Limited
Aristotelio Panepistimio Thessalonikis
Technologiko Panepistimio Kyprou
Red Spa
Politecnico di Milano
Ilmatieteen Laitos
Time period Jan 2020 - Dec 2023

YADES aims to efficiently train a network of fellows on the field of the resilience of Cultural Heritage (CH) areas and historic cities against Climate Change (CC) and other types of hazards. Towards this direction, YADES aims to introduce a research framework for downscaling the created climate and atmospheric composition as well as associated risk maps down to the 1x1 km (historic area) scale, and specific damage functions for CH materials. Applying atmospheric modelling for specific CC scenarios at such refined spatial and time scales allows for an accurate quantitative and qualitative impact assessment of the estimated micro-climatic and atmospheric stressors. YADES will perform combined structural/geotechnical analysis of the CH sites and damage assessment under normal and changed conditions, based on the climatic zone, the micro-climate conditions, the petrographic and textural features of building materials, historic data for the structures, the effect of previous restoration processes and the environmental/physical characteristics of the surrounding environment. The data coming from installed monitoring system will be coupled with simulated data (under our cultural heritage resilience assessment platform- CHRAP) and will be further analysed through our data management system, while supporting communities' participation and public awareness. The data from the monitoring system will feed the DSS so as to provide proper adaptation and mitigation strategies. The produced vulnerability map will be used by the local authorities to assess the threats of CC (and other natural hazards), visualize the buily heritage and cultural landscape under future climate scenarios, model the effects of different adaptation strategies, and ultimately prioritize any rehabilitation actions to best allocate funds in both pre- and post-event environments. To train the fellows, the project will make use of extensive workshop ad training sessions, as well organise summer schools.

Relevant publications

 

HYPERION—Development of a decision support system for improved resilience and sustainable reconstruction of historic areas to cope with climate change and extreme events based on novel sensors and advanced modelling tools
Project Funding European Commission - Executive Agency for Small and Medium-sized Enterprises
Horizon 2020
H2020-LC-CLA-2018-2
Collaborators Institute of Communication and Computer Systems
Finnish Meteorological Institute
ResilienceGuard GmbH
Oslo Metropolitan University
National Technical University of Athens
RISA Sicherheitsanalysen GmbH
University of Padova
University of Granada
Aristotle University of Thessaloniki
CyRIC - Cyprus Research & Innovation Center Ltd
Iuav University of Venice
Vestfold and Telemark County Council
City of Venice
Municipality of Rhodes
City Council of Granada
Intercultural Euro-Mediterranean Centre for UNESCO
RED, Risk Engineering + Development
Time period Jun 2019 - Nov 2022

www.hyperion-project.eu

HYPERION aims to introduce a research framework for downscaling the created climate and atmospheric composition as well as associated risk maps down to the 1x1 km (historic area) scale, and specific damage functions for Cultural Heritage (CH) materials. Applying atmospheric modelling for specific Climate Change (CC) scenarios at such refined spatial and time scales allows for an accurate quantitative and qualitative impact assessment of the estimated micro-climatic and atmospheric stressors. HYPERION will perform combined hygrothermal and structural/geotechnical analysis of the CH sites (indoor climate, HVAC, related strains and stresses, etc.) and damage assessment under normal and changed conditions, based on the climatic zone, the micro-climate conditions, the petrographic and textural features of building materials, historic data for the structures, the effect of previous restoration processes and the environmental/physical characteristics of the surrounding environment. The data coming from the integrated monitoring system will be coupled with simulated data (under our holistic resilience assessment platform-HRAP) and will be further analysed through our data management system, while supporting communities' participation and public awareness. The data from the monitoring system will feed the DSS so as to provide proper adaptation and mitigation strategies, and support sustainable reconstruction plans for the CH damages. The produced vulnerability map will be used by the local authorities to assess the threats of CC (and other natural hazards), visualize the built heritage and cultural landscape under future climate scenarios, model the effects of different adaptation strategies, and ultimately prioritize any rehabilitation actions to best allocate funds in both pre- and post-event environments. The project outcomes will be demonstrated to four European historic areas in Norway, Spain, Italy and Greece (representing different climatic zones).

Relevant publications
  1. Bakalis K., Vamvatsikos D., Grant D.N., Mistry A. (2019). Downtime assessment of base-isolated liquid storage tanks. Proceedings of the SECED 2019 Conference, Greenwich, UK.
  2. Chatzidaki A., Vamvatsikos D. (2019). Mixed probabilistic seismic demand models for fragility assessment. Proceedings of the SECED 2019 Conference, Greenwich, UK.

 

NSFuse—Ductile steel fuses for the protection of critical nonstructural components
Project Funding EU SERA Network
Horizon 2020
H2020-INFRAIA-2016-1
Collaborators National Technical University of Athens - NTUA
University of Bristol
Ecole Polytechnique Federale de Lausanne
Stanford University
Time period Sep 2018-Dec 2019



sera-ta.eucentre.it/sera-ta-project-21

The testing and experimental/analytical verification of a controlled yielding fuse concept is proposed for the seismic protection of critical nonstructural components. The objective is to offer a reliable and inexpensive solution for the protection of acceleration- and drift-sensitive equipment, such as mechanical components, HVAC units and medical devices that underpin the functionality of nearly all buildings. Recent events have showcased the vulnerability of non structural components to even low- or moderate-intensity earthquakes that occur far more frequently that design-level events. Thus, critical facilities are often crippled for months despite having suffered little structural damage, clearly failing in the much-sought-after objective of resilience. The problem lies in the dynamics of narrowband excitations appearing at the floors (and ceilings) of buildings and the corresponding resonant response of many rigidly-connected components, introducing component accelerations that can exceed 5 times the (already amplified) peak floor response. In contrast, a controlled yielding anchor offers a reliable detuning effect that only requires a minor ductility of 1.5 - 2.0 to achieve reductions in acceleration and deformation demands by factors of 2 to 3. Still, an actual verification of this concept and a prototype design of such a fuse-like yielding element are yet to appear. The proposed project aims to comprehensively fulfill this need by offering an innovative experimental campaign featuring an easily-modifiable specimen, replaceable sacrificial elements, and multiple input acceleration timehistories from instrumented buildings to test the yielding fuse concept to satisfaction.

Relevant publications

 

PANOPTIS—Enabling development of a decision support system for increasing the resilience of transportation infrastructure based on combined use of terrestrial and airborne sensors and advanced modelling tools
Project Funding European Commission - Innovation and Networks Executive Agency
Horizon 2020, Mobility for Growth
H2020-MG-2017-Two-Stages
Collaborators Airbus Defence and Space SAS
National Technical University of Athens
ACCIONA Construcción SA
Egnatia Odos AE
Future Intelligence Ltd
Universiteit Twente
French Institute of Science and Technology for Transport, Development and Networks
Finnish Meteorological Institute
Aristotle University of Thessaloniki
Sofistik Hellas AE
C4Controls Ltd
Hydrometeorological Innovative Solutions
Confederation of Organisations in Road Transport Enforcement
Time period Jun 2018-Nov 2021

www.panoptis.eu

The purpose of the PANOPTIS project is to improve the resiliency (ability to adapt) of the road infrastructures and ensuring reliable network availability under unfavourable conditions, such as extreme weather, landslides, and earthquakes. The project's main goal is to combine down-scale climate change scenarios (applied to road infrastructure) with structural and geotechnical simulation tools, and with actual data from sensors (terrestrial and airborne) so as to provide the operators with an integrated tool able to support more effective management of their infrastructures at planning, maintenance and operation level. The following technologies will be implemented in the PANOPTIS tool:

  • Reliable quantification of climatic, hydrological and atmospheric stressors
  • Multi-Hazard vulnerability modules and assessment toolkit
  • Development of a forecasting module to provide high-resolution tailored weather and precipitation forecasts
  • Improved prediction of structural and geotechnical safety risk through the use of Geotechnical and Structural Simulation Tool (SGSA)
  • Improved multi-temporal, multi-sensor observations with robust spectral analysis, computer vision and Machine Learning (ML) damage diagnostic for diverse Road Infrastructures (RI).
  • Detailed and wide area transport asset mapping, integrating state-of-the-art mobile mapping and making use of Unmanned Aerial Vehicles (UAV) technology
  • Design of a Holistic Resilience Assessment Platform (HRAP)
  • Design of a Common Operational Picture (COP) including a Decision Support System (DSS), an enhanced visualization interface and an Incident Management System (IMS)
The PANOPTIS integrated platform (and its sub-modules) will be implemented in two motorway sections in the Greek and Spanish primary road network.

Relevant publications
  1. Bakalis K., Vamvatsikos D., Grant D.N., Mistry A. (2019). Downtime assessment of base-isolated liquid storage tanks. Proceedings of the SECED 2019 Conference, Greenwich, UK.
  2. Chatzidaki A., Vamvatsikos D. (2019). Mixed probabilistic seismic demand models for fragility assessment. Proceedings of the SECED 2019 Conference, Greenwich, UK.
  3. Vamvatsikos D. (2019). Decision support for road infrastructure resilience: the PANOPTIS perspective. Proceedings of the SECED 2019 Conference, Greenwich, UK.
  4. Kazantzi A.K., Vamvatsikos D. (2019). Prescriptive approaches in performance-based design? A case-study on base isolation. Proceedings of the 13th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP13, Seoul, South Korea.
  5. Spillatura A., Vamvatsikos D., Bazzurro P., Kohrangi M. (2019). Issues in harmonization of seismic performance via risk targeted spectra. Proceedings of the 13th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP13, Seoul, South Korea.

 

iDesign—Enabling Seismic Design Decision-Making under Uncertainty
Project Funding EU Research Executive Agency
Marie Curie Actions, Continuing Integration Grant
FP7-PEOPLE-2011-CIG
Collaborators D. Vamvatsikos, NTU Athens
A.K. Kazantzi, NTU Athens
M. Fragiadakis, NTU Athens
D. Giannopoulos, NTU Athens
M. Aschheim, Santa Clara University, USA
Time period Sep 2011 - Aug 2015

Figure 1: An efficient algorithm based on Latin Hypercube Sampling is employed to estimate the dispersion due to model parameter uncertainty in the seismic capacity of a 9-story steel moment-resisting frame. Using 160 (right) versus 10 (left) realizations of the uncertain model significantly tightens the estimates around the correct answer (red line).

Figure 2: We seek to design a 4-story steel frame building for a high-seismicity site. The hazard surface (left) shows the frequency of different levels of seismic excitation (spectral acceleration) being exceeded at the site for potential (currently unknown) vibration periods of the building. The Yield Frequency Spectra (right) help the engineer find the appropriate period and strength of the structure, shown in the lower right corner, by selecting the closest curve that lies below the specified performance objectives. These are the red X symbols, each representing a maximum allowable frequency of a given global ductility (or damage) occurring in the building.

The primary objective is the development of a simple yet accurate method for performance-based design of structures in seismic areas. In essence, we seek to revolutionize the standard process that every professional structural engineer undertakes to design a structure subject to seismic forces. The reason is that recent earthquakes have shown that buildings reflecting current design approaches may reduce the rate of fatalities, but often result to staggering monetary losses and disruption of functionality. Thus, earthquakes can still financially cripple entire cities, or even countries.

To holistically quantify such effects, the concept of “seismic performance” is employed. This characterizes the behavior of a given structure under seismic loads. Ideally this is based on the use of metrics that are of immediate use to engineers, e.g., story forces and deformations, but also to stakeholders, such as monetary losses, human casualties and time-to-repair (or replace). At a simpler level, one may quantify damage by using simpler engineering metrics such as global ductility or maximum interstory drift. “Performance-based” earthquake engineering is concerned with tackling the dual problems of assessment and design. Assessment is the direct process of estimating the performance of a given (existing) structure. Design is the inverse problem, whereby a (new or rehabilitated) structure, its members and properties are sought to assure a desired performance under a given seismic hazard. As typically befitting such dualities, the direct path of assessment is by far the simpler of the two. Designing a structure to achieve a desired level of performance is an indirect process that is currently solvable only through arduous iterations: It is simply not applicable in practice. To make things worse, the considerable uncertainty inherent in earthquakes (i.e., when, where, how intense) and structures (what has been constructed versus what was designed on paper, what are the material properties, issues of corrosion, aging etc.) make this problem even more difficult.

To offer a practicable path for performance-based design, three important innovations have been introduced. First, a computationally efficient approach is proposed for rapidly establishing the effect of model uncertainties on the seismic performance (Figure 1). This allows the quantification of the consequences of uncertainties and their inclusion in subsequent analyses. Second, a simplified, yet accurate formula is offered for evaluating the seismic performance in terms of the mean annual frequency of damage occurring in the building. Thus, intuition is gained on the structural parameters that influence the seismic behavior of the building, while an analytical estimation of the building performance becomes possible. Finally, the concept of Yield Frequency Spectra (Figure 2) is developed, whereby an engineer can directly determine the required strength and stiffness of the structure given the seismic hazard at the building site and the owner's requirements on how frequently it sustains low or high levels of damage. Both analytical approximations and accurate numerical solutions are available, encoded in open-source software that can estimate Yield Frequency Spectra within seconds to provide a reliable design basis for any building and any user requirements.

Relevant publications
  1. Kazantzi A.K., Vamvatsikos D.(2016). Intensity measure selection for vulnerability studies of building classes. Earthquake Engineerning and Structural Dynamics, (accepted).
    [official] [free]
  2. Kazantzi A.K., Vamvatsikos D., Lignos D.G. (2014). Seismic performance of a steel moment-resisting frame subject to strength and ductility uncertainty. Engineering Structures, 78: 69-77.
    [official] [free]
  3. Vamvatsikos D. (2014). Seismic Performance Uncertainty Estimation via IDA with Progressive Accelerogram-wise Latin Hypercube Sampling. ASCE Journal of Structural Engineering, 140(8), A4014015.
    [official] [free]
  4. Vamvatsikos D. (2014). Accurate application and second-order improvement of the SAC/FEMA probabilistic formats for seismic performance assessment. ASCE Journal of Structural Engineering, 140(2), 04013058.
    [official] [free]
  5. Vamvatsikos D. (2013). Derivation of new SAC/FEMA performance evaluation solutions with second-order hazard approximation. Earthquake Engineerning and Structural Dynamics, 42(8): 1171-1188.
    [official] [free]
  6. Giannopoulos D.G., Vamvatsikos D. (2015). Influence of rotated ground motion components on the response distribution of inelastic oscillators. Proceedings of the COMPDYN2015 Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Crete, Greece.
  7. Kazantzi A.K., Vamvatsikos D. (2015). A next generation scalar intensity measure for analytical vulnerability studies. Proceedings of the COMPDYN2015 Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Crete, Greece.
  8. Vamvatsikos D. (2015). A view of seismic robustness based on uncertainty. Proceedings of the 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP12, Vancouver, Canada.
  9. Vamvatsikos D., Katsanos E.I., Aschheim M.A. (2015). A case study in performance-based design using yield frequency spectra. Proceedings of the SECED 2015 Conference, Cambridge, UK.
  10. Vamvatsikos D., Aschheim M.A. (2014). Direct performance-based seismic design of structures using Yield Frequency Spectra. Proceedings of the 10th U.S. National Conference on Earthquake Engineering, Anchorage, AK, USA.
  11. Vamvatsikos D., Aschheim M.A., Kazantzi A.K. (2014). Direct performance-based seismic design: Avant-garde and code-compatible approaches. Proceedings of the 9th European Conference on Structural Dynamics (EURODYN 2014), Porto, Portugal.
  12. Giaralis A., Vamvatsikos D. (2014). Local wavelet-based spectral "epsilon" modification of ground motions in support of incremental dynamic analysis. Proceedings of the 2nd International Conference on Vulnerability and Risk Analysis and Management (ICVRAM2014), Liverpool, UK.
  13. Vamvatsikos D., Aschheim M.A. (2014). A code-compatible application of yield frequency spectra for direct performance-based design. Proceedings of the 2nd European Conference on Earthquake Engineering and Seismology (2ECEES), Istanbul, Turkey.
  14. Vamvatsikos D., Aschheim M.A., Kazantzi A.K. (2013). Direct performance-based seismic design using yield frequency spectra. Proceedings of the Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics (VEESD 2013), Vienna, Austria.
  15. Kazantzi A.K., Vamvatsikos D., Lignos D.G. (2013). Model parameter uncertainty effects on the seismic performance of a 4-story steel moment-resisting frame. Proceedings of the 10th International Conference on Structural Safety and Reliability (ICOSSAR), New York.
  16. Vamvatsikos D. (2012). Accurate application and higher-order solutions of the SAC/FEMA probabilistic format for performance assessment. Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
  17. Kazantzi A.K., Vamvatsikos D. (2012). A study on the correlation between dissipated hysteretic energy and seismic performance. Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal.

 

ARCHYTAS—Archetypal telemetry and decision support system for the protection of monumental structures
Project Funding EPAnEK 2014-2020 Operational Programme Competitiveness-Entrepreneurship-Innovation
ESPA 2014-2020, Greek Ministry of Education and Religious Affairs/MIA-RTDI
T1EΔK-00956
Collaborators Engineering Firm AETMON
National Technical University of Athens
iTEAM
Engineering Firm DOMOS
Ancient Monument Restoration Agency of the Ministry of Culture
Time period Oct 2018 - Jul 2021


archytas.ntua.gr

The project proposes the development of an intelligent platform for remotely monitoring monumental structures, promptly diagnosing their potential for instability and making subsequent decisions on taking remedial actions. It is a timely proposal that is developed in cooperation with the Ministry of Culture to protect the entirety of the monumental structures in Greece, through the accurate diagnosis and the assessment of the estimated micro-climatic and atmospheric stressors. HYPERION will perform combined prioritization of rehabilitation needs, aiming to optimize the distribution of available funds. For this purpose, two discrete levels of system deployment are offered. The first requires minimal resources and involves the use of software for risk assessment under multiple environmental hazards (earthquake, wind, flood, deterioration, ageing). It employs probabilistic methods and models to estimate the risk of instability and offers some remote monitoring capabilities through local or regional measuring of the intensity of environmental actions. At the second level, a sensor network is deployed at the monument and connected to the remote monitoring platform, offering continuous up-to-date information to optimize the accuracy of instability prediction via the risk assessment software.

The platform will be validated via its pilot application to two emblematic monuments of Classical Antiquity:
a) the Horologion of Andronikos Kyrrhestes (Tower of the Winds) in the Roman Forum of Athens and b) the Temple of (Athena) Aphaea in Aegina Island. The exploitation of the platform is expected to offer considerable direct and indirect benefits, both for the research and industrial partners, as well as for the Agencies of the Ministry of Culture and the Greek state.

Relevant publications

 

INFRASTRESS—Improving resilience of sensitive industrial plants & infrastructures exposed to cyber-physical threats
Project Funding EU Commission
Horizon 2020
H2020-SU-INFRA-2018
Collaborators Engineering - Ingegneria Informatica SPA
MOTOR OIL (HELLAS) Diilistiria Korinthou AE
Attilio Carmagnani "AC" S.p.a
FISIPE - Fibras Sinteticas de Portugal SA
Petrol Slovenska Energetska Druzba dd Ljubljana
Depuy (Ireland) Unlimited
Luka Koper, Port and Logistic System, D.D.
Municipio do Barreiro
European Virtual Institute for Intergrated Risk Management EU VRI EWIV
Consorzio Interuniversitario Nazionale per L'Informatica
Rina Consulting SPA
Steinbeis Advanced Risk Technologies GmbH
INOV INESC INOVACAO - Instituto de Novas Tecnologias
Ethniko Kentro Erevnas kai Technologikis Anaptyxis
DR Frucht Systems LTD
United Technologies Research Centre Ireland, Limited
SATWAYS - Proionta kai Ypiresies Tilematikis Diktyakon kai tilepikinoniakon Efarmogon Etairia Periorismenis Efthinis EPE
National Observatory of Athens
Holo Industrie 4.0 Software GmbH
G & N Silence LTD
Institut Jozef Stefan
Stam SRL
Uniwersytet Technologiczno Przyrodniczy im Jana i Jedrzeja Sniadeckich w Bydgoszczy
Institut za Korporativne Varnostne Studije Ljubljana
ATRISC
DIN Deutsches Institut Fuer Normung E.V.
Katholieke Universiteit Leuven
Time period Jun 2019 - May 2021


infrastress.eu

InfraStress addresses cyber-physical (C/P) security of Sensitive Industrial Plants and Sites (SIPS) Critical Infrastructures (CI) and improves resilience and protection capabilities of SIPS exposed to large scale, combined, C/P threats and hazards, and guarantee continuity of operations, while minimizing cascading effects in the infrastructure itself, the environment, other CIs, and citizens in vicinity, at reasonable cost. In fact, InfraStress will develop TRL4+ solutions from preceding research and innovation towards TRL7 level producing maximum adoption of the proposed methods and solutions. Addressing the current fragmentation of the available security solutions and technology, InfraStress will provide an integrated framework including cyber and physical threat detection, integrated C/P Situational Awareness, Threat Intelligence, and an innovative methodology for resilience assessment - all tailored to each site.
InfraStress adopts a user-driven approach carried out through: a) delivery of usable and user-friendly Services and Applications for C/P protection and resilience; b) technical activities driven by and receiving active input from end users, i.e. SIPS and relevant stakeholders; c) a comprehensive set of 5 real-world Pilots and Evaluation activities to be carried out by User Partners.
InfraStress matches key impacts not only in response to the Work Programme Call but also at Strategic, Socio-economic and Market levels. In fact InfraStress was concerned since the beginning with a strong business vision in mind and will carry out effective exploitation actions ensureing successful go-to-market. Tailored activities are also planned to rise a culture of participatory security to involve all stakeholders including companies, workers, public authorities, citizens and civil society.
InfraStress involves 27 partners of excellence from 11 countries with very cross-cutting and complementary competences and excellent track records, including 5 SIPS operators.

Relevant publications

 

DISSIPABLE—Fully dissipative and easily repairable devices for resilient buildings with composite steel concrete structures
Project Funding EU Research Fund for Coal and Steel
EU Research Fund for Coal and Steel
800699-RFCS-2017
Collaborators Politecnico di Milano (POLIMI)
Instituto Superior Tecnico (IST)
National Technical University of Athens - NTUA (NTUA)
D. Sofras - Masina Team Anonimi Etaireia Metallikon & Mikanoyrgikon Ergasion (SOFMAN SA)
Universita Degli Studi di Trento (UNITN)
Rheinisch-Westfaelische Technische Hochschule Aachen (RWTH AACHEN)
RINA Colsulting - Centro Sviluppo Materiali SPA (CSM SPA)
Universita di Pisa (UNIPI)
Time period Jul 2018 - Dec 2021

Anti-seismic devices previously designed and characterized within RFCS Projects by the proposal's authors will be further developed taking into account the experience collected so far. Optimized structural systems will be proposed, with improved dissipation, reliability and reparability features. Single storey buildings with seismic resistance provided by the improved devices will be built and subjected to strong earthquakes. Systematic post-earthquake repair and reassembly procedures for these buildings applied and provided as "instructions for use". Ability of repaired systems to resist strong earthquakes will be examined. Economic and environmental benefits and improved resiliency properties of the proposed systems will be quantified.

Relevant publications

 

STEELWAR—Advanced structural solutions for automated steelrack supported warehouses
Project Funding EU Research Fund for Coal and Steel
Horizon 2020
754102-RFCS-2016
Collaborators Universita di Pisa (UNIPI)
FINCON Consulting Italia SRL (FINCONIT)
National Technical University of Athens - NTUA (NTUA)
Rheinisch-Westfaelische Technische Hochschule Aachen (RWTHA ACHEN)
Universiteit Hasselt (UHasselt)
Noega Systems Sociedad Limitada (Noega)
Modulblok Spa (MODULBLOK SPA)
Sacma Spa (SACMA S.p.A.)
Nedcon bv (NEDCON BV)
Mecalux, s.a. (MECALUX, S.A.)
System Logistics s.p.a. (System Logs)
Universita degli Studi di Firenze (UNIFI)
Time period Jul 2017 - Jun 2021


steelwar

Automated Rack Supported Warehouses (ARSW) represent the future of storage technology, providing substantial savings in terms of cost, space and energy with respect to traditional warehouses. Currently, designers refer to building codes, without any control of their correct applicability to the specific typologies of these peculiar steel structures. This creates important safety and efficiency problems because ARSWs' structural characteristics are considerably different from those of normal steel structures for buildings. Basing on an accurate evaluation of safety level of the design concepts actually adopted in current practice (in the total absence of specific design codes), the main objective of the proposal is the definition of dedicated innovative design approaches for ARSWs in not seismic and seismic conditions. In particular, attention will be focused on loading conditions that characterize the ARSWs during its installation and service life and on ductile design under seismic loading. Based on such analysis specific design rules and recommendations will be carried out for erection and design of ARSWs.

Relevant publications

 

ANGELHY—Innovative solutions for design and strengthening of telecommunications and transmission lattice towers
Project Funding EU Research Fund for Coal and Steel
Horizon 2020
753993-RFCS-2016
Collaborators National Technical University of Athens - NTUA (NTUA)
ArcelorMittal Belval & Differdange SA (AMBD)
Universite de Liege (ULG)
COSMOTE Kinites Tilekoinonies a.e. (COSMOTE)
Centre Technique Industriel de la Construction Metallique(CTICM)
Sika France SAS (Sika France)
Time period Jul 2017 - Dec 2020

Angle sections are extensively used in lattice towers and masts for telecommunication or electricity transmission. In addition, single or built-up sections made of angles are used in a wide field of civil engineering applications including buildings, bridges or for strengthening existing structures. However, there is a lack of consistent European rules for design for members made of angle profiles. Recent developments have led to a wider application of large angle sections made of high strength steel, for which European design rules are missing. Due to increasing loads, strengthening of existing towers, especially for communication, is an issue faced in everyday practice. However, design codes cover only one specific configuration.
The objective of this proposal is the development of design rules that exploit the carrying potential of angle sections, including large angles from high strength steel, the improvement of existing rules for built-up sections and the incorporation of innovative types of built-up sections composed of two angles with unequal sections. In addition, hybrid profiles composed of angle sections and FRP plates will be investigated and relevant design rules developed. Such hybrid members provide innovative and cost effective solutions for strengthening existing lattice towers. Experimental and numerical investigations will be performed at the level of cross sections, members, as well as of structural tower sub-assemblies to incorporate the influence of realistic connection conditions, existing eccentricities and load shedding between tower walls. Case studies will be examined and a performance-based assessment of the actual system safety will be conducted incorporating uncertainties in loads, material and geometry. A comprehensive evaluation of the reliability infused by the new design rules will be made. The proposed rules will be integrated in design software for towers.

Relevant publications

 

EQUALJOINTS-PLUS—Valorisation of knowledge for European pre-qualified steel joints
Project Funding EU Research Fund for Coal and Steel
Horizon 2020
754048-RFCS-2017
Collaborators Universita degli Studi di Napoli Federico II.
Convention Europeenne de la Construction Metallique ASBL
Universite de Liege
Universitet po Architektura Stroitelstvo i Geodezija
Ceske Vysoke Uceni Technicke v Praze
Rheinisch-Westfaelische Technische Hochschule Aachen
National Technical University of Athens - NTUA
Universitat Politecnica de Catalunya
Centre Technique Industriel de la Construction Metallique
Universita degli Studi di Salerno
ArcelorMittal Belval & Differdange SA
Technische Universiteit Delft
Universidade de Coimbra
Universitatea Politehnica Timisoara
Univerza v Ljubljani
Imperial College of Science Technology and Medicine
Time period Jul 2017 - Jun 2019

Within the previous RFCS project EQUALJOINTS (RFSR-CT-2013-00021), seismic prequalification criteria of steel joints have been developed. This proposal aims at the valorisation, the dissemination and the extension of the developed prequalification criteria for practical applications to a wide audience (i.e. academic institutions, Engineers and architects, construction companies, steel producers).
The main objectives of the proposal are the following:
. To collect and organize informative material concerning the prequalified joint typologies: informative documents will be prepared in 12 languages (English, Spanish, French, German, Italian, Dutch, Portuguese, Czech, Bulgarian, Romanian, Greek, and Slovenian);
. To develop pre-normative design recommendations of seismically qualified joints on the basis of results from Equaljoints project;
. To develop design guidelines in order to design steel structures accounting for the type of joints and their relevant non-linear response;
. To develop a software and an app for mobile to predict the inelastic response of joints;
. To organize seminars (2) and workshops (14) for disseminating the gained knowledge over EU and internationally. Workshops and seminars will be organized in the own-countries of partners involved in the project as well as in United States of America (USA). With this regard, since in EQUALJOINTS dog-bone joints with heavy sections have been qualified using US shapes produced in Europe, the organization of seminars in USA will be an important opportunity to get to the US Market, consolidating the gain of European economy and having beneficial impact on exportation of European products in USA;
. To create a web site with free access to the users in order to promote the obtained results;
. To create a You-Tube channel to make available the videos of the experimental tests and simulations to show the evolution of damage pattern.

Relevant publications

 

ATC-120—Seismic analysis and design of nonstructural components and systems
Project Funding US National Institute of Standards and Technology (NIST)
US National Institute of Standards and Technology (NIST)
NIST GCR 13-917-23
Collaborators National Technical University of Athens - NTUA
Time period Jan 2017 - Sep 2018


atc-120

NIST GCR 13-917-23, Development of NIST Measurement Science R&D Roadmap: Earthquake Risk Reduction in Buildings (developed by the Building Seismic Safety Council (BSSC) of the National Institute for Building Sciences (NIBS) for NIST in 2013) identified nonstructural issues as a top priority need for problem-focused studies related to earthquake engineering for new and existing buildings. The report identified four critical areas related to nonstructural design criteria needing focused study:
(1) the vertical distribution of nonstructural design forces over the height of a building, Fp;
(2) the response modification coefficients for nonstructural components; Rp;
(3) the overstrength factors used in the design of nonstructural anchorage; and
(4) nonstructural component and system performance metrics.

Nonstructural components and systems can account for a significant percentage of the construction cost of a building (depending on occupancy), and significant economic losses resulting from downtime and loss of functionality have been observed in past earthquakes, even when the structure is not severely damaged. With recent advancements in performance-based design methodologies, and the development of concepts for community resilience, there has been an increased emphasis on economic losses resulting from downtime and loss of building function due to nonstructural components and systems, and an increase in research and testing in this area. Development of new research results, and the availability of new international standards, makes reexamination of U.S. nonstructural design criteria possible at this time.

Relevant publications

 

Reliability of Coupled High-Speed Trains and Bridges Under Earthquakes
Project Funding General Research Fund, Hong Kong
General Research Fund, Hong Kong
16244116
Collaborators The Hong Kong University of Science and Technology
National Technical University of Athens - NTUA
???
Time period Jan 2017-Dec 2019

High speed railway (HSR) lines extend for thousands of kilometres many within earthquake prone areas. In the greater China region, bridges may constitute even more than 80% of the total length of a HSR line. As a consequence, the likelihood a running train is on a bridge during earthquake shaking is far greater than otherwise. At the speed levels HSR trains operate (250-350 km/h) seismic events that are of little significance for the integrity of the bridge might represent a credible threat for the train's running safety. Such low to moderateintensity earthquakes are common even in low seismicity areas like the Guangdong region. In the very short lifetime of HSR, trains have already derailed on bridges shaken by earthquakes.
Traditional earthquake engineering focuses on bridges and major earthquakes. In contrast, HSR are coupled vehicle-bridge systems vulnerable also to the exponentially more frequent moderate earthquakes. This research focuses on the interdisciplinary area linking bridge and vehicle dynamics to examine the seismic response of coupled train-bridge systems. To assess the safety of trains running on seismically-vibrating bridges research usually relies on indirect methods such as force-based metrics or geometric criteria. This prevents a more realistic estimation of direct and indirect earthquake consequences for HSR train-bridges and hinders the quantification of the seismic risk.
The overriding goal of this research is to assess, analytically and numerically, the seismic safety and reliability of HSR train-bridge systems. To this end it will develop an original seismic analysis scheme capable of simulating different failure modes of the coupled train-bridge system including train derailment and overturning, and bridge damage. Subsequently, this research will establish, for the first time, a probabilistic performance-based seismic assessment framework tailored to HSR train-bridge systems. In this context, it will account for the uncertainties characterizing the earthquake-bridge-train problem. Upon completion the proposed research will assess the consequences of train-bridge seismic damage and operation disruption, in terms of casualties, monetary loss and lost time. The envisaged methodology will provide a risk-decision support framework needed to assess the efficiency of possible mitigation measures such as tuning of early warning systems, operational speed adjustment, and modification of design guidelines.
The proposed research can lead to seminal and timely advances in the areas of bridge, infrastructure and earthquake engineering related to the analysis of coupled train-bridge systems and their safety. This is a high-priority research area that is attracting international attention and major funding.

Relevant publications

 

INNOSEIS—Valorisation of innovative seismic devices
Project Funding EU Research Fund for Coal and Steel
Horizon 2020
709434-RFCS-2016
Collaborators National Technical University of Athens - NTUA
Convention Europeenne de la Construction Metallique ASBL
Universiteit Hasselt
Universitet po Achitektura Stroitelstvo i Geodezija
Maurer Sohne Engineering GMBH & CO KG
Rheinisch-Westfaelische Technische Hochschule Aachen
Politecnico di Milano
Universita degli Studi di Napoli Federico II
Universita di Pisa
Instituto Superior Tecnico
Universitatea Politehnica Timisoara
Time period Jul 2016 - Dec 2017

innoseis.ntua.gr

Valorization actions for 12 innovative anti-seismic devices will be undertaken. The devices were recently developed in the frame of RFCS, EU and national research projects by the partners involved in the project. Information documents for all devices will be produced for dissemination to all partners of the construction sector such as Architects, structural Engineers, construction companies, steel producers and all potential decision makers of the construction sector. These documents will be bundled in a volume for dissemination. The volume will be translated in several European languages. Criteria will be set on which it may be decided which of the devices are subject to CE marking in accordance with EN 15129 and which may be considered as innovative systems that require a code approval in EN 1998-1. For the latter pre-normative design recommendations will be drafted that will allow them to receive the status of code-approved systems. A reliability based methodological procedure to define values of behavior factors (qfactors) for building structures will be established. This procedure will be applied in turn to determine q-factors for structural systems with the anticipated devices. Case studies with application examples in which the devices are employed will be worked out. The case studies refer to new single story steel buildings, new multi-story steel-concrete composite buildings and to interventions for seismic upgrading of existing buildings. Seminars and Workshops will be organized in large parts of Europe. In addition, Seminars will ne organized in non-European Mediterranean high seismicity countries to promote technologies and codes developed in Europe. A web site with free access to the users will be created and promoted to practice. Printed and electronic material will be produced and disseminated to all involved in the construction sector

Relevant publications

 

SeaWind—Performance-based design of offshore wind turbines
Project Funding Hellenic General Secretariat for Research and Technology
ESPA 2007-2013, European Regional Development Fund, EPAnII
12CHN184
Collaborators National Technical University of Athens - NTUA
???
Time period Apr 2013-Sep 2015

Project Description

Relevant publications

 

Seismic Vulnerability Guidelines Development and Seismic Vulnerability Functions
Project Funding Global Earthquake Model
??
??
Collaborators University of Colorado
National Technical University of Athens - NTUA
Time period Jul 2012-Dec 2015

Project Description

Relevant publications

 

Risk assessment for the seismic protection of industrial facilities
Project Funding Hellenic General Secretariat for Research and Technology
ESPA 2007-2013, Greek Ministry of Education and Religious Affairs
??
Collaborators National Technical University of Athens - NTUA
???
Time period Jan 2012 - Sep 2015

The proposal focuses on the seismic safety of industrial equipment structures and the development of computational methods for their seismic risk assessment. The seismic behavior and design of such structures widely used plants for production and storage ...

Relevant publications
Last updated:
07/Mar/2020
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earthquakes, steel, dynamics & probability

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