Special Sessions - EUROSTRUCT

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4 months ago
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Special Sessions

SS1 – Quality control of green concrete structure <i>Amaia Santamaria, Flora Faleschini</i>


Amaia Santamaria
Universidad del País Vasco
Spain


Flora Faleschini
University of Padova
Italy
flora.faleschini@dicea.unipd.it

Abstract
The special session on quality control of green concrete structures aims to discuss topics about the quality control, testing protocols for standardization of by-products and waste to be used in concrete, test in real scale structures, case studies and modeling of green concrete. This session will be a chance for people interested in a more sustainable construction sector, focused in sustainable materials use in concrete structures. Any research, case study, experience which can help for the standardization of recycled materials and new cementitious green concretes are welcome in this session.

Topics:
  • Case studies on green concrete structures
  • Durability tests on green cementitious materials
  • Modeling of green concrete
  • Recycled materials in concrete
  • Test in reals scale green concrete structures
  • Testing protocols for green cementitious materials

SS2 – Corrosion protection for concrete and steel bridges <i>Martin van Leeuwen</i>


Martin van Leeuwen
International Zinc Association
Belgium
mvanleeuwen@zinc.org

Abstract
Controlling corrosion of steel is expensive. The direct costs of corrosion maintenance are estimated to be over 3% of GDP every year. Metallic zinc coatings provide the most effective corrosion protection for steel by acting first as a barrier coating, keeping corrosive elements away from the steel, and secondly as a sacrificial anode. Metallic zinc coatings have a long proof record in the protection of infrastructural steel structures and steel reinforced concrete structures. Although the initial costs of metallic zinc protective coating systems are usually slightly higher, the total life cycle costs of zinc coated steel and RC structures will be drastically reduced because of the expected lifetime extensions and reduced corrosion maintenance efforts. Metallic zinc coating systems are also the most sustainable systems in use. Innovative and automated production and application techniques for applying zinc coatings on construction steel, reinforcing steel bars and concrete surfaces have reduced initial costs, making these solutions more attractive to use in new infrastructure constructions today. This session aims for giving an overview of available applications and application techniques today with various case studies from steel and RC (bridge) constructions.

SS3 – Railway Bridges <i>Rui Calçada, Túlio Bittencourt, Pedro Aires Montenegro, Diogo Ribeiro, Hermes Carvalho, Marcos Massao Futai</i>


Rui Calçada
University of Porto
Portugal
ruiabc@fe.up.pt


Túlio Bittencourt
University of São Paulo
Brazil
tbitten@usp.br


Pedro Aires Montenegro
University of Porto
Portugal
paires@fe.up.pt


Diogo Ribeiro
Polytechnic of Porto
Portugal
drr@isep.ipp.pt


Hermes Carvalho
Federal University of Minas Gerais
Brazil
hermes@dees.ufmg.br


Marcos Massao Futai
University of São Paulo
Brazil
futai@usp.br

Abstract
In order to achieve better performance in the travelling time, the railway infrastructure has grown significantly in the last decades, especially with the construction of new bridges and viaducts. In terms of high speed railways, for example, the necessity to ensure smoother tracks with larger curve radius resulted in new railway lines with a high percentage of bridges. Therefore, to face these challenges, the research related to railway bridges is becoming increasingly important among the railway engineering community.
Within the framework outlined above, this special session aims to bring together the latest achievements, research and studies regarding the design, construction, monitoring, maintenance and management of railway bridges. Theoretical, experimental and computational investigations, or a combination of them, are welcome in this session. The scope of the present session encompasses, but is not restricted to, the following topics: railway bridge design, train bridge interaction, track bridge interaction, soil structure interaction, train-induced ground vibrations, transition zones, reliability and runnability of railway bridges in strong winds and/or earthquake-prone areas, traffic safety on railway bridges, train riding comfort, structural damage identification, Bridge Information Modeling (BrIM) and life cycle assessment.

SS4 – Structural Deterioration and the Value of Information <i>Paolo Gardoni, Sebastian Thöns, Leandro Iannacone</i>


Paolo Gardoni
University of Illinois at Urbana-Champaign
USA
gardoni@illinois.edu


Sebastian Thöns
Lund University
Sweden
sebastian.thons@kstr.lth.se


Leandro Iannacone
University of Illinois at Urbana-Champaign
USA

Abstract
Over the past few years, significant effort has been devoted to modeling and predicting structural deterioration. The recent developments have been crucial for planning optimal maintenance strategies and minimizing disruptions due to the occurrence of shock events. Several models and prediction tools are informed by the collection of data with inspections, Non-Destructive Testing (NDT), and Structural Health Monitoring (SHM). Also, multiple formulations to quantify the Value of Information (VoI) provided by such procedures have been put forward. A proper quantification of the VoI can further enhance the benefit of information adapted deterioration models for decision support. The scope of this Special Session is to bring together expert researchers and academics interested in the various aspects of deterioration modeling and quantification of the VoI. The latest developments in theoretical and computational approaches will be analyzed and discussed. Contributions addressing practical applications are also encouraged.

SS5 – Structural Reliability and Resilience of Bridges and Transportation Systems <i>Paolo Gardoni, Armin Tabandeh, Fabrizio Nocera</i>


Paolo Gardoni
University of Illinois at Urbana-Champaign
USA
gardoni@illinois.edu


Armin Tabandeh
University of Illinois at Urbana-Champaign
USA


Fabrizio Nocera~
University of Illinois at Urbana-Champaign
USA

Abstract
Decisions about infrastructure risk mitigation and resilience improvement have long-lasting effects on communities’ well-being; these decisions also involve significant uncertainties as they require predicting the physical and operational state of infrastructure for decades ahead. The mathematical models of infrastructure are imperfect, and there are missing and limited data about the essential characteristics of infrastructure and external stressors. These sources of uncertainty challenge our ability to model infrastructure reliability and resilience effectively. This Special Session brings together researchers to address problems concerned with the mathematical modeling, performance assessment, and management of bridges and transportation systems under uncertain operating conditions and subject to extreme events. Potential topics include, but are not limited to, performance-based engineering, component, system, and network reliability analysis, probabilistic recovery modeling and resilience analysis, uncertainty propagation and sensitivity analysis, and risk-informed decisions.

SS6 – Structural Health Monitoring for informed management of roadway bridges: the experience of the Regione Lombardia project <i>Maria Pina Limongelli, Carmelo Gentile, Fabio Biondini</i>


Maria Pina Limongelli
Politecnico di Milano
Italy
mariagiuseppina.limongelli@polimi.it


Carmelo Gentile
Politecnico di Milano
Italy
carmelo.gentile@polimi.it


Fabio Biondini
Politecnico di Milano
Italy
fabio.biondini@polimi.it

Abstract
Many bridges and viaduct dating back to ’50 and ’60 of the last century are approaching the end of their design lifetime. In most European countries costs related to maintenance of infrastructures reach a quite high percentage of the construction budget and additional costs in terms of traffic delay are due to downtime related to the inspection and maintenance interventions. In the last 30 years, the rate of deterioration of these infrastructures has increased due to increased traffic loads, climate change related events and man-made hazards. The events related to recent bridge failures, including the collapse of the Morandi bridge in Italy, tragically highlighted the need to improve maintenance policies in order to increase the safety for people and goods and to reduce losses of infrastructure functionality and related consequences. In this focus, Structural Health Monitoring (SHM) is one of the key strategies with a great potential to support the informed management of transport infrastructures.
In 2018 Regione Lombardia and Politecnico di Milano launched a project for the definition of criteria and guidelines for maintenance and management of roadway infrastructures. The project is aimed at developing a risk-based bridge maintenance prioritization methodology at regional scale and providing recommendations for design and implementation of bridge SHM systems. As a support to validation and practical application of the proposed approach, SHM systems were designed and implemented on nine exemplary bridges in Lombardy and are currently collecting data that will provide information about the bridges’ health. This Special session will provide the venue to present and discuss the preliminary outcomes of the SHM research and applications developed within this project and foster discussions and further collaborations.

SS7 - Advances of the BRIDGE|50 Research Project: Residual Structural Performance of a 50-Year-Old PC Bridge <i>Fabio Biondini, Francesco Tondolo, Sergio Manto, Carlo Beltrami</i>


Fabio Biondini
Politecnico di Milano
Italy
fabio.biondini@polimi.it


Francesco Tondolo
Deputy-Coordinator of SISCON – Center for Safety of Infrastructures and Constructions
Politecnico di Torino
Italy
francesco.tondolo@polito.it


Sergio Manto
SCR Piemonte
Italy
sergio.manto@scr.piemonte.it


Carlo Beltrami
Lombardi Engineering
Italy
Carlo.Beltrami@lombardi.group

Abstract
BRIDGE|50 is a research project established jointly by Politecnico di Milano and Politecnico di Torino with public authorities and private companies for a wide experimental campaign on a prestressed concrete viaduct dismantled after a 50-year lifetime in the context of the Torino-Ceres construction works (http://www.bridge50.org). A group of 29 deck beams, including 25 I-beams and 4 box beams, and 2 pier caps have been moved and stored in a testing site. The on-site experimental activities include non-destructive diagnostic tests, full-scale load tests up to collapse, and samples collected for laboratory tests. The objective is gathering new data concerning the life cycle safety and reliability of aging bridges exposed to deterioration processes. This framework of data will provide knowledge advances for public authorities managing infrastructure networks and represent key information to improve existing methods for lifetime assessment of reinforced and prestressed concrete structures. The results of the research project are expected to contribute a modern approach to life-cycle design of bridges and to improve safety, maintenance, and management of existing infrastructure systems. This Special Session is aimed at presenting advances of the ongoing activities, including the preliminary experimental results of the full scale load tests, and fostering future research activities and implementation in practice of life-cycle design, assessment, maintenance, and management of bridges and critical infrastructure networks.

SS8 - Technical risk assessment in recent bridge accidents and disastes <i>Felipe Collazos-Arias ,David Garcia-Sanchez, Mazen Wahbeh, Rami Boundouki, André D. Orcesi, Matias A. Valenzuela</i>


Felipe Collazos-Arias
University of Cantabria
Spain
felipecollazos.fc@hmail.com


David Garcia-Sanchez
TECNALIA
Spain
david.garciasanchez@tecnalia.com


Mazen Wahbeh
Alta Vista Solutions
USA
mwahbhe@altavistasolutions.com


Rami Boundouki
Alta Vista Solutions
USA
rboundouki@altavistasolutions.com


André D. Orcesi
The French Institute of Science and Technology for Transport, Development and Networks (IFSTTAR)
France
andre.orcesi@ifsstar.fr


Matias A. Valenzuela
Pontificia Universidad Catolica de Valparaiso
Chile
matias.valenzuela@pucv.cl

Abstract
Recent accidents, collapses and events occurred have different origins and consequences. All of them are related to technical aspects, which resulted in a total interruption or at best a reduction of the service capacity of the transport infrastructure with the consequent personal injury or economic impact.
Bridge maintenance, safety and management has many lessons to learn from recent bridge accidents and disasters. This mini-symposium aims to reflect together academics, public sector, designers, contractors, financiers about this from the risk assessment perspective, accident description and repair bridge.
The risk to bridge from hazards are increasingly globally and can occur with a varying degree of predictability.

SS9 - Monitoring systems and predictive models for the risk assessment of bridges <i>Francesco Morelli, Michele Morici</i>


Francesco Morelli
University of Pisa
Italy
francesco.morelli@unipi.it


Michele Morici
University of Camerino
Italy
michele.morici@unicam.it

Abstract
Bridges represent a fundamental node of the road infrastructure networks, and traffic restrictions or prohibitions generally may cause serious economic losses, as well as serious connection issues. The effect of ageing, often worsened by poor maintenance, lack of knowledge and adopted outdated design criteria (i.e. not-updated traffic loads, not considering seismic actions) make them among the most vulnerable elements of the road networks. Thus, the knowledge of their state of conservation and capacity to counteract both traffic and seismic actions represent the starting point for the organization and prioritization of the maintenance and retrofitting operations. For bridges that, based on few information acquired by quick assessment surveys, show significant structural deficiencies and therefore should require more detailed analyses, investigation and monitoring campaigns are necessary aimed at increasing the state of knowledge, which is fundamental to define reliable numerical models for the safety assessment. Based on these premises, this Special session offers the opportunity to present and discuss the last researches on this topic. In particular, it leads with the several aspects associated to the knowledge processes of bridges, new techniques of monitoring and testing, as well as the proposals of new predictive models suitable for their risk assessment.

SS10 - Masonry arch bridges: Diagnostic, monitoring, structural assessment and strengthening <i>Nicola Cavalagli, Paolo Zampieri, Mattia Zizi</i>


Nicola Cavalagli
University of Perugia
Italy
nicola.cavalagli@unipg.it


Paolo Zampieri
University of Padova
Italy


Mattia Zizi
Università degli Studi della Campania “Luigi Vanvitelli”
Italy

Abstract
The maintenance in service with an appropriate structural safety level of historic Masonry Arch Bridges (MAB) is a current need that has given rise to a discussion in the scientific community, aimed at developing optimal strategies of diagnostic, monitoring, assessment and strengthening of these structures. This special session promotes a discussion on new methods for the diagnosis, SHM and condition evaluation of roadway and railway masonry bridges. Moreover, contributions focused on simplified and detailed numerical modelling of MAB are welcome. Finally, the session is open to receive any research activity, case study, experimental results and numerical analysis outcomes concerning the repair and the strengthening of MAB with traditional or innovative techniques.

Topics:
  • Structural assessment of Masonry Arch Bridges;
  • Nonlinear behaviour of Masonry Arch Bridges;
  • Case studies of Masonry Arch Bridges assessment and repair;
  • Innovative techniques and advanced materials for the strengthening of Masonry Arch Bridges;
  • SHM of Masonry Arch Bridges.

SS11 - Risk-informed Digital Twins of bridges and Structures <i>Umberto Alibrandi, Paolo Gardoni, Christos T. Georgakis</i>


Umberto Alibrandi
AArhus University
Denmark
umbertoalibrandi@eng.au.dk


Paolo Gardoni
University of Illinois at Urbana-Champaign
USA
gardoni@illinois.edu


Christos T. Georgakis
AArhus University
Denmark
cg@eng.au.dk

Abstract
The Digital Twin (DT) is a virtual replica of buildings, processes, structures, people, systems created and maintained in order to answer questions about its physical part, the Physical Twin (PT). In the case of the built environment, the PT is represented by bridges and structures. Full synchronization between the DT and the PT will provide a perpetual learning process and updating between the two twins. However multiple sources of uncertainty during the lifecycle now challenge our understanding and ability to effectively model the performances of the systems. It follows the significance of the Risk-informed Digital Twin (RDT) of bridges and structures, where tools of data-driven Uncertainty Quantification, Risk Analysis and decision making under uncertainty are fully integrated.
The scope of this Special Session is to bring together expert practitioners, researchers and academics to develop methods, frameworks and tools in this broad area, including but not limited to Structural Health Monitoring, Value of Information, Uncertainty Quantification and surrogate modelling, structural reliability, stochastic dynamic analysis, machine learning, reinforcement learning, lifecycle optimal design and management under uncertainty. Contributions addressing practical applications are also encouraged.

SS12 - Modelling of nonlinear and uncertain behavior of concrete bridges <i>Alfred Strauss, Drahomír Novák, Radomír Pukl, David Lehký</i>


Alfred Strauss
University of Natural Resources and Life Sciences (BOKU)
Austria
alfred.strauss@boku.ac.at


Drahomír Novák
Brno University of Technology
Czech Republic
novak.d@fce.vutbr.cz


Radomír Pukl
Brno University of Technology
Czech Republic
pukl.r@fce.vutbr.cz


David Lehký
Brno University of Technology
Czech Republic
lehky.d@fce.vutbr.cz

Abstract
The road network faces major challenges: aging buildings, increasing traffic loads, the effects of climate change, new quality requirements and a limited budget for road infrastructure. In order to maintain a reliable road network, new, innovative approaches must be pursued. This applies in particular to bridge structures. At present, their maintenance management is based on regular building inspections. Damage is only discovered when it is obvious. This procedure is damage-based and reactive. However, damages and problems of the structure are often already announced inside the building. The bridges of the future should be able to provide information about their condition and its development at an earlier stage and in addition to the building inspections.
The aim of this special session is to present in-depth numerical reliability-based assessment methods for bridge systems and to make them available to a larger number of engineering offices and infrastructure operators. The deepened numerical reliability oriented assessment methods serve for the provision of relevant information and for the holistic assessment of bridge systems and have a significant effect on the efficient and targeted use of the limited budget in bridge maintenance.
The core outputs of the project for the infrastructure managers (InfB.) and the engineering community (IngG.) should be (a) the creation of accessibility to the deepened numerical statistical building blocks and reliability oriented evaluation methods for the holistic evaluation of bridge systems, (b) the creation of a guideline for the risk reduced application of the deepened procedures, and (c) the development of a sustainable training programme. These three approaches have so far not been prepared for engineering communities. and infrastructure managers. in any of the European countries and worldwide and are therefore to be classified as highly innovative.

SS13 - Fatigue analysis and impact of natural and man-made hazards <i>Jens Peder Ulfkjær, Ezio Cadoni</i>


Jens Peder Ulfkjær
Aarhus University
Denmark
jpu@eng.au.dk


Ezio Cadoni
SUPSI
Switzerland
ezio.cadoni@supsi.ch

SS14 - Testing, monitoring and digital twinning to assess the structural condition of existing bridges <i>Carmelo Gentile, Filippo Ubertini</i>


Carmelo Gentile
Politecnico di Milano
Italy
carmelo.gentile@polimi.it


Filippo Ubertini
Univerity of Perugia
Italy
filippo.ubertini@unipg.it

Abstract
Within the context of assessment of existing bridges and flyovers, the use of multi-disciplinary strategies, integrated monitoring systems (where data from heterogeneous sensor networks are simultaneously collected and processed) and the development of “digital twin” models is quickly increasing in diffusion and importance. The Mini-Symposium is intended to focus on recent developments regarding the experimental and/or numerical assessment, monitoring and control of the behavior of bridges under different types of loads (e.g. moving loads, vehicle-bridge interaction, seismic loads) with special attention given to innovative procedures in real applications, the integration of different experimental methods and the consideration of different phases of existing bridges life cycle. Suitable topics include, but are not limited to, the following: (a) Multi-disciplinary strategies of assessment and SHM; (b) Design, implementation and management of monitoring systems; (c) Vibration-based tuning of FE models (Digital Twinning); (d) Effects of environmental and operational variability on collected structural parameters.

SS15 - Structural Health Monitoring <i>Vikram Pakrashi, Eleni Chatzi</i>


Vikram Pakrashi
University College Dublin
Ireland
vikram.pakrashi@ucd.ie


Eleni Chatzi
ETH Zurich
Switzerland
chatzi@ibk.baug.ethz.ch

Abstract
Structural Health Monitoring (SHM) has established in recent years a strong complement to traditional approaches of structural assessment, which largely rely on visual inspection strategies. Particularly for bridges, a large portion of which is currently approaching end of their nominal life, monitoring offers a viable means for preserving serviceability and safety and prompting for intervention, where necessary. This mini-symposium covers recent theoretical and applied developments in the domain of structural health monitoring with applications to bridges. Emphasis is placed on the robust interpretation of the SHM findings. Work pertaining to all four levels of condition assessment is welcomed including, detection, localization and characterization of damage severity, as well as prediction of remaining lifetime. We further encourage submissions that report on actual-scale field measurements or works exploiting Machine Learning for forming grey (hybrid) or black box data-driven diagnostic and prognostic models.

SS16 - Risk management and classification of road bridges <i>Consortium Fabre (Paolo Clemente, Carmelo Gentile, Giuseppe Ferro, Andrea Dall'Asta, Gianfranco De Matteis, Edoardo Proverbio, Carlo Pellegrino, Filippo Ubertini, Walter Salvatore)</i>


Paolo Clemente
ENEA – Italian National Agency for New Technologies
Italy
paolo.clemente@enea.it

Abstract
Europe has a large heritage of bridges, in masonry, r.c. or steel, over fifty years old, many of which were designed with technical standards very different from the current ones and, therefore, assuming moving loads different from those of the present codes. Safeguarding these infrastructures is of fundamental importance to ensure their efficiency, durability and reliability and can be pursued through an appropriate maintenance program that avoids the occurrence of serious irreversible damage.
These bridges were built in different eras, using different materials, whose mechanical characteristics are not known and difficult to model, and with different technologies, some of which are no longer used. Their geometry is often unknown and inspections are difficult due to the complexity of reaching all structural components, such as the foundations. Obviously, in order to define an improvement intervention or a maintenance program, detailed knowledge of the structure is essential.
The risk classification is part of a general multilevel approach that, on the basis of a simple census of the existing structure, leads to the determination of a “class of attention” and, when necessary, to a safety check. On the basis of the classification and check, the resilience analysis of the road networks can be done. Obviously, census of the structures, as well as initial and special inspections, are fundamental to point out any defect or damage and to make assessments with respect to the possible relevant structural (static and foundational), seismic and hydro-geological (hydraulic and landslide) risks.
The Italian Ministry of Infrastructure has recently issued the Guideline for managing the safety of existing bridges in order to prevent inadequate levels of damage by making the risk acceptable. It is composed of three parts, on the census and risk classification, safety verification and surveillance and monitoring of existing bridges and viaducts. The approach is developed on 6 different levels, with an increasing degree of depth and complexity, and five classes of attention are considered.
This Guideline is to be improved and updated in the future, with particular reference to the classification of bridges as part of the risk management. This Special Session will be the most appropriate venue to present and illustrate new ideas for the improvement of the guideline and eventual extension to other European countries.

SS17 - Corrosion influence on the residual performance of RC and pre-stressed bridges <i>Silvia Caprili, Flora Faleschini, Ilaria Venanzi</i>


Silvia Caprili
University of Pisa
Italy
silvia.caprili@unipi.it


Flora Faleschini
University of Padova
Italy
flora.faleschini@dicea.unipd.it


Ilaria Venanzi
University of Perugia
Italy
ilaria.venanzi@unipg.it

Abstract
Recent events highlighted the catastrophic consequences of corrosion phenomena affecting reinforced concrete (RC) and pre-stressed bridges. If the effects of aggressive environmental conditions on traditional RC infrastructures – at material (concrete and reinforcing steel), section and element level – were widely investigated in the current and past scientific literature, the interest on the residual performance of pre-stressed bridges under corrosion attack is increasing because of the severity damages (even collapse, in the extreme condition) and of the relative consequences at urban and territorial scale. Corrosion affects materials, leading to a deterioration of the mechanical performance of both rebars, strands and concrete. The correlation between the corrosion entity – including different phenomena such as chlorides’ attack, H-embrittlement, carbonation, stress corrosion, corrosion fatigue – and its effects on the residual bearing capacity of bridges needs to be assessed by combining the results of experimental investigations with numerical simulations accounting for different corrosion damage scenarios and including corrosion effects. By this way, it will be possible to determine reliable methods to estimate the residual bearing capacity of bridges in presence of aggressive environmental conditions, providing the base for the application of prevention/protection measures increasing the infrastructure service life.

SS18 - Condition monitoring and assessment of degrading reinforced concrete structures <i>Fritz Binder, Stefan L. Burtscher</i>


Fritz Binder
ASFiNAG Baumanagement GmbH, Wien
Austria
fritz.binder@asfinag.at


Stefan L. Burtscher
Burtscher Consulting, Wien
Austria
slb@burtscher.consulting

Abstract
Concrete structures are exposed to media that trigger a degradation process, which leads to damage and high maintenance costs. Especially the concrete infrastructure of the motorway networks is under high exposures of aggressive media, which are chlorides, as well as heavy and cyclic loads. But there are also others. Condition monitoring is an essential tool that supports the assessment of structures in terms of security, but also can be used to determine cost effective maintenance intervals.
The objective of this session is to bring together experts and discuss:

  • Condition monitoring for durability and safety of concrete structures, including visualization, assessment and prognosis to improve predictability.
  • Morphing of inspection results and measured data to condition indices (classes) to support the maintenance work and an overall condition index for structure assessment.

SS19 - Data-driven multi-risk assessment of transport infrastructure for enhancing resilience and sustainability <i>Sotirios Argyroudis, Mariano Angelo Zanini, Stergios Mitoulis, Lorenzo Hofer, Enrico Tubaldi</i>


Sotirios Argyroudis
Brunel University London
United Kingdom
sotirios.argyroudis@brunel.ac.uk


Mariano Angelo Zanini
University of Padova
Italy
marianoangelo.zanini@dicea.unipd.it


Stergios Mitoulis
University of Surrey at Guildford
United Kingdom
s.mitoulis@surrey.ac.uk


Lorenzo Hofer
University of Padova
Italy
lorenzo.hofer@unipd.it


Enrico Tubaldi
University of Strathclyde
Scotland
enrico.tubaldi@strath.ac.uk

Abstract
Transport infrastructure, which includes railway and highway bridges, tunnels, retaining walls, geotechnical assets and port facilities, are exposed to combined effects of natural hazards, e.g. earthquakes, floods, winds, landslides, whose damaging effects may be exacerbated by climate change as well as ageing and increasing traffic loads. In this respect, the concepts of resilience and sustainability for critical transport infrastructure have become of paramount importance in achieving the UN’s Sustainable Development Goals, toward more accurate impact assessments for delivering Climate Neutrality by 2050. Such assessments must consider today’s needs and future impacts, accounting for adverse climatic deviations, and quantifying the resilience of infrastructure over their life cycle with reliable fragility, capacity restoration and traffic reinstatement metrics and models. These assessments should also take advantage of the new technological developments in terms of monitoring, providing valuable information for enhancing resilience-based management prior, during and after multiple, cumulative and/or abrupt natural hazards. This Special Session brings together researchers, engineers, transport infrastructure operators and owners and policy makers, aiming to address problems concerned with multi-risk modelling and efficient management for transport infrastructure. Potential topics include, but are not limited to digital technologies and monitoring systems in multi-hazard resilience and sustainability, modelling of single and interdependent infrastructure risk and resilience, uncertainty in climatic stressors, decision making tools for prioritization and management of critical transport assets, use of sensors for risk updating and informed decisions, early warning, rapid damage assessment, extreme events modelling for infrastructure networks, uncertainty analysis and decision making under uncertainty.


SS20 - Modelling and assessment of structures and infrastructures subject to extreme loading actions <i>Fabio Di Trapani, Cristoforo Demartino, Mariano Angelo Zanini, Liborio Cavaleri</i>


Fabio Di Trapani
Politecnico di Torino
Italy
fabio.ditrapani@polito.it


Cristoforo Demartino
Zhejiang University
China
cristoforodemartino@intl.zju.edu.cn


Mariano Angelo Zanini
University Padova
Italy
marianoangelo.zanini@dicea.unipd.it


Liborio Cavaleri
University of Palermo
Italy
Liborio.cavaleri@unipa.it

Abstract
Structures and infrastructures can be exposed during their service-life to extreme loads. These actions can be induced by natural events (e.g., wind, earthquakes, landslides, tsunamis etc.) or man-made causes (e.g., impacts, blasts, etc.). Secondary effects induced by extreme loads are relevant for a proper safety evaluation. For instance, the response of structures subjected to the combined action of earthquake and fire hazards has gained attention in recent years, motivated by post-earthquake fire events that were observed mainly in large metropolitan areas, in which significant losses occurred to both life and property.
For the abovementioned reasons, a realistic evaluation of the structural response due to extreme loads is a matter of growing importance in many civil engineering situations, no longer reserved to the field of military defense technologies. This session encourages the submissions of contributions addressing one or more of these topics. The topic to be covered are but not limited to:

  • robustness of structures and infrastructures to exceptional loads;
  • progressive collapse analyses;
  • simulation of impacts and blasts events on structural systems;
  • modeling and assessment of structures under fire, earthquakes, and tsunami loads;
  • effects of extreme wind loads on structural integrity of built environment.

SS21 – Database for Bridge Management <i>Vikram Pakrashi, Jose C. Matos</i>


Vikram Pakrashi
University College Dublin
Ireland
vikram.pakrashi@ucd.ie


Jose C. Matos
ISISE, University of Minho
Portugal
jmatos@civil.uminho.pt

Abstract
Databases are particularly important for establishing efficient maintenance and management of bridges. While the concept and need of such databases are now well established, the scope, extent, format, quality of data and subsequent use and analyses around these databases are widely varied. Also, there is a need to link different databases, used by different stakeholders. The variations are not only different for different countries, but also from one owner to another owner within the same country. Under such circumstances, there is a need to better understand several aspects of databases around bridge management.
This mini-symposium covers theoretical and applied developments around bridge databases. The topics include, but are not limited to the design, data-security, compatibility among databases, collection measures, analyses, pre-post processing, links to decision making, monitoring, assessment and long-term strategies for various networks. Future use and challenges around such databases are welcome, as are examples and case studies from real networks.

SS22 – Digitalization and automation of bridge and structure inspections <i>Irina Stipanović, Amir Kedar, Zaharah Allah Bukhsh, Andrej Anžlin</i>


Irina Stipanović
University of Twente
The Netherlands
i.stipanovic@utwente.nl


Amir Kedar
Kedmor Engineers Ltd.
Israel
akedar@kedmor.co.il


Zaharah Allah Bukhsh
Eindhoven University of Technology
The Netherlands


Andrej Anžlin
Slovenian National Civil Engineering and Building Institute
Slovenia
andrej.anzlin@zag.si

Abstract
Innovative solutions for rapid and informative surveys of existing bridges and structures are being in the last decade rapidly developed. The need for digitalization of our built environment is increasing and a high-quality data has been recognized as a centre for future decision making. The aim of this session is to give an overview of the implementation of advanced technologies for data acquisition (e.g. UAVs, laser scanning, thermal camera) into inspection procedures of bridges and structures, and how these data can be used for development of automated condition assessment and maintenance prediction models. The multi-disciplinary approach from computer sciences, civil engineering and data analytics is necessary for the future practices developments. Contributions addressing practical applications of remotely performed and automated visual inspections of infrastructure assets are also encouraged.

SS23 – Innovation and sustainability applied to construction, maintenance and management of road infrastructures and bridges <i>Marco Pasetto</i>

Marco Pasetto
University of Padova
Italy
marco.pasetto@unipd.it

SS24 – Data Models and Ontology for Bridge Management <i>Rade Hajdin, Jose C. Matos</i>


Rade Hajdin
Infrastructure Management Consultants GmbH
Switzerland
Rade.Hajdin@imc-ch.com


Jose C. Matos
ISISE, University of Minho
Portugal
jmatos@civil.uminho.pt

Abstract
Bridge Management is commonly supported by databases, which store all necessary data to enable objective decision-making with regard to maintenance and improvement interventions. In essence, in these databases the relevant part of physical world is mapped. This mapping and resulting “digital twin” is based on decision with regard to ontology i. e. representation, formal naming and definition of the categories, properties and relations between the concepts within bridge engineering and on its concrete realization as data models. This decision varies from bridge owner to bridge owner, but there is a common objective that guides the creation of such ontologies. Under such circumstances, there is a need to better understand the reason underlying selection of particular ontology and/or data model.
This mini symposium aims to cover the diversity of bridge ontology in European countries an initiate discussion on the advantages or disadvantages of different ontologies. This discussion can perhaps lead to a standardization on European level, which with the introduction of BIM in Bridge Management seems to be unavoidable.