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Getting more out of Structures through Monitoring and Simulation

English title Getting more out of Structures through Monitoring and Simulation
Applicant Chatzi Eleni
Number 154060
Funding scheme NRP 70 Energy Turnaround
Research institution Institut für Baustatik und Konstruktion ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Civil Engineering
Start/End 01.06.2015 - 31.12.2018
Approved amount 219'550.00
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All Disciplines (2)

Discipline
Civil Engineering
Material Sciences

Keywords (6)

monitoring; hybrid structures; grey energy; distributed sensory feedback; UHPFRC; multiscale approach

Lay Summary (German)

Lead
In Anbetracht der Verknappung vorhandener Ressourcen, sollten die Strategien bezüglich der Bewirtschaftung von Bauwerksbeständen mit Blick auf die drei Säulen der Nachhaltigkeit überdenkt werden. Dieses Projekt ist Teil mehrerer Forschungsprojekte, welche die Entwicklung von Ressourcen-effizienten Lösungen für bestehende Bauwerke zum Ziel haben. Der Focus dieses Projekts ist zweierlei. Einerseits werden Methoden entwickelt, mit denen die Nutzungsdauer von bestehenden Bauwerken mittels neuartigen Interventionsmethoden und gezieltem Einsatz von Sensoren verlängert werden können. „Monitoring“, d.h. das Sammeln und Auswerten der system-spezifischen Tragwerksantwort, vermittelt ein genaueres Verständnis des aktuellen Bauwerkszustands und dadurch die Verlängerung der nominellen Lebensdauer. Andererseits dient dieses Projekt auch dazu, verfeinerte Methoden für die Simulation und experimentelle Beurteilung von den vorgeschlagenen neuartigen Baumethoden zu entwickeln.
Lay summary

Bauteile, welche aus Ultra-Hochleistungs-Faser-Beton (UHFB) bestehen, finden trotz vielversprechender Eigenschaften hinsichtlich Ressourcenverbrauch noch keine breite Anwendung. Während weitere werkstoffbezogene Verbesserungen hinsichtlich des Energie- und Ressourcenverbrauchs in einem Parallelprojekt thematisiert werden, befasst sich dieses Projekt mit Anwendungen auf der Stufe Bauwerk und zwar speziell mit dessen Anwendbarkeitspotential im Bauprozess. Entsprechend wird ein zweiteiliger Ansatz benötigt, der auf experimentellen Untersuchungen von Bauteilen aus UHFB sowie auf einer geeigneten Modellierungsmethode beruht. Letztere wird notwendig, da die präzise Untersuchung von Tragwerken dieser Art rechen- und zeitintensiv sind, wozu optimierte Rechenmethoden für eine effiziente Tragwerkssimulation erforderlich sind.

Die drei Hauptziele des Projekts lauten somit: (1) Entwicklung einer „Monitoring“-Methode zur Gewinnung von ausreichenden Informationen hinsichtlich der Systemreaktion von Tragwerken aus UHFB für sowohl kurze (Festigkeit, Robustheit) als auch lange (Dauerhaftigkeit) Zeitintervalle, (2) Durchführung einer Versuchsreihe um die Leistungsfähigkeit dieser Methoden zu überprüfen und (3) Entwicklung von recheneffizienten „Multiscale“-Formulierungen, welche in der Lage sind dieses Mehrphasenmaterial in voller Systemgrösse zu simulieren.

Direct link to Lay Summary Last update: 22.10.2014

Responsible applicant and co-applicants

Employees

Publications

Publication
Towards the use of UHPFRC in railway bridges: the rehabilitation of Buna Bridge
Martín-Sanz Henar, TatsisKostas, DamjanovicDomagog, MandicAna, StipanovicIrina, SanjaAljosa, BrühwilerEugen, ChatziEleni (2018), Towards the use of UHPFRC in railway bridges: the rehabilitation of Buna Bridge, in Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision, Ghent, BelgiumCRC Press, Leiden, The Nederlands.
Monitoring of the Chillon viaduct after strengthening with UHPFRC
Martín-Sanz Henar, Dertimanis Vasilis, Avendaño-Valencia Luis David, Brüghwiler Euge (2018), Monitoring of the Chillon viaduct after strengthening with UHPFRC, in Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges, Melbourne, AustraliaCRC Press, London.
Sustainable strengthening of structures using Ultra High Performance Fibre Reinforced Cement-Based Composites and Computational Verification
Martín-Sanz Henar, Chatzi Eleni, Egger Adrian, Brühwiler Eugen, Sustainable strengthening of structures using Ultra High Performance Fibre Reinforced Cement-Based Composites and Computational Verification, in 19th IABSE Congress Stockholm, 21-23 September 2016, Challenges in Design and Construction of an Inn, Stockholm, SwedenInternational Associateion for Bridge and Structural Dynamics, Zurich, Switzerland.
The use of Ultra-High Performance Fiber Reinforced Cement-based Composites in Rehabilitation Projects: A review
Martin-Sanz Henar, Chatzi Eleni, Brühwiler Eugen, The use of Ultra-High Performance Fiber Reinforced Cement-based Composites in Rehabilitation Projects: A review, in 9th International Conference on Fracture of Concrete and Concrete Structures (FraMCoS-9), Berkeley, Berkeley, CaliforniaInternational Association of Fracture Mechanics for Concrete and Concrete Structures, Berkeley, California.

Datasets

Monitoring of the Chillon viaduct after strengthening with UHPFRC

Author Martín-Sanz , Henar; Dertimanis, Vasilis; Avendano-Valencia, L.David; Brühwiler, Eugen; Chatzi, Eleni
Persistent Identifier (PID) http://doi.org/10.5281/zenodo.2573227
Repository zenodo
Abstract
Vibration data from accelerometers installed in Chillon Viaduct. Accelerometers positions included in the pdf. sampling freqeuncy= 200Hz.

Towards the use of UHPFRC in railway bridges: the rehabilitation of Buna Bridge

Author Martin-SAnz, Henar; Tatsis, Kostas; Stipanovic, Irina; Sanja, Aljosa; Damjanovic, dOMAGOJ
Publication date 31.10.2018
Persistent Identifier (PID) 10.5281/zenodo.2574457
Repository Towards the use of UHPFRC in railway bridges: the rehabilitation of Buna Bridge
Abstract
Dataset of experiment carried out on Buna bridge, before rehabilitation. Accelerations corresponding to a roving test, with the positions and orientations specified ont the pdf (pass1 vertical, pass 2 vertical, pass1 horizontal, pass2 horizontal. The structure was excited with a shaker in horizontal (confH) and vertical (confV) positions.

Collaboration

Group / person Country
Types of collaboration
Prof. Dr. Eugen Brühwiler / School of Architecture, Civil & Environmental Engineering / MCS / EPFL Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
Marmota SA Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Industry/business/other use-inspired collaboration
ZAG Slovenia (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Faculty of Civil Engineering/University of Zagreb Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
- Exchange of personnel
Smartec SA Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Industry/business/other use-inspired collaboration
Lüchinger+Meyer Bauingenieure AG Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Industry/business/other use-inspired collaboration
Department of Engineering Cambridge University Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
IALCCE 2018,The Sixth International Symposium on Life-Cycle Civil Engineering Talk given at a conference Towards the use of UHPFRC in railway bridges: the rehabilitation of Buna Bridge 29.10.2018 Ghent, Belgium, Belgium Chatzi Eleni; Martín-Sanz Henar;
IABMAS 2018 9th INTERNATIONAL CONFERENCE ON BRIDGE MAINTENANCE, SAFETY AND MANAGEMENT Talk given at a conference Monitoring of the Chillon viaduct after strengthening with UHPFRC 09.07.2018 Melbourne, Australia Martín-Sanz Henar; Brühwiler Eugen;
FraMCoS 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures Talk given at a conference The use of Ultra High Performance Fibre Reinforced cement-based Composites in rehabilitation projects: a review 29.05.2018 Berkeley, California USA, United States of America Martín-Sanz Henar; Chatzi Eleni;
Challenges in Design and Construction of an Innovative and Sustainable Built Environment Talk given at a conference Sustainable strengthening of structures using Ultra High Performance Fibre Reinforced Cement-Based Composites and Computational Verification 21.09.2016 sweden, Sweden Brühwiler Eugen; Martín-Sanz Henar;


Self-organised

Title Date Place

Communication with the public

Communication Title Media Place Year
Talks/events/exhibitions Structural Health Monitoring - Daten im Dienst der Infrastruktur International Western Switzerland German-speaking Switzerland Rhaeto-Romanic Switzerland Italian-speaking Switzerland 2018
Media relations: radio, television Big Data im Bauwesen DW International Western Switzerland German-speaking Switzerland 2017

Awards

Title Year
Within the broader context of monitoring, on the basis of which this project is founded and operates, Prof. Dr. Eleni Chatzi has been awarded d an ERC Starting Grant award (ERC-2015-StG #679843) on the topic of "Smart Monitoring, Inspection and Life-Cycle Assessment of Wind Turbines". 2016

Associated projects

Number Title Start Funding scheme
154060 Getting more out of Structures through Monitoring and Simulation 01.06.2015 NRP 70 Energy Turnaround

Abstract

In recent years, developed societies have been faced with the problem of continuous urbanization and excessive energy consumption, closing in on exhaustion of available resources. In view of this, the notions of sustainability and resilience have become paramount in the way developed societies plan ahead and manage resources. This sub-project forms part of a wider Joint project, seeking to deliver resource efficient solutions. The scope of this sub-project is twofold; on the one hand, we will look into ways of extending the lifetime of existing structures through novel intervention methods and via collection of appropriate sensory information. The aspect of monitoring, i.e. the collection of information from the structure, allows for a deeper knowledge of the system itself and therefore a realistic verification of structural safety. Additionally, a better assessment of the system’s operating condition may enable the extension of the nominal lifetime of existing building stock. This in turn, contributes to the significant reduction of building materials, energy consumption and CO2 emissions, which are detrimental in currently standard approaches that require full replacement of structures once they fulfill their design expectancy, regardless of their actual condition. On a second level, this work package, WP5, will deal with the simulation and experimental assessment of the novel building approaches proposed within this Joint submission. This pertains to solutions involving hybrid wood, CFRP, and UHPFRC as proposed in work packages WP2, WP3 and WP4 of the Joint Project. It will deal with modelling and simulation on both the element as well as a global structural level, i.e. to the level of a frame assembly focusing on critical components, such as joints. This step is of particular importance when taking into account, that any proposed new technology has to be put through performance tests that validate its efficacy when compared to standard practices that are commonly implemented to date. To this end, it is of the essence to come up with modelling methodologies that can appropriately account for the intricacies of the resulting structural systems.
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