• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Information and Communication Technologies in Earthquake Engineering
 

Information and Communication Technologies in Earthquake Engineering

on

  • 806 views

Sextos, A.G., (2011) “Information and Communication Technologies in Earthquake Engineering”, in: The Thirteenth International Conference on Civil, Structural and Environmental Engineering ...

Sextos, A.G., (2011) “Information and Communication Technologies in Earthquake Engineering”, in: The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing, Chania, Greece [published as Computational Technology Reviews, Tsompanakis, Y. and Topping, B.H.V. (Ed.), Vol. 4, Pp. 193-224, 2011. Doi:10.4203/ctr.4.8].

Statistics

Views

Total Views
806
Views on SlideShare
762
Embed Views
44

Actions

Likes
0
Downloads
0
Comments
0

2 Embeds 44

http://www.civilengineering.gr 27
http://feeds.feedburner.com 17

Accessibility

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Information and Communication Technologies in Earthquake Engineering Information and Communication Technologies in Earthquake Engineering Presentation Transcript

    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingInformation & Communication Technologies in E th i Earthquake E i k Engineering i Anastasios Sextos, Assistant Professor Aristotle University of Thessaloniki Greece
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing aim to iti ll discuss: t critically dithe recent advances in Information & Communication Technologies (ICTs) and their applications i the seismic design and assessment of modern structures, h i li i in h i i d i d f d with emphasis on buildings and bridges and present: d • new software applications • web-based engineering tools • decision-making systems • collaborative on-site and remote research tools • frameworks for hybrid simulation (coupled experimental and numerical) • open source applications • data and metadata dissemination and archiving g • applications for mobile devices and remote computing • earthquake-specific GIS applications
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT applications for mitigating seismic risk Risk mitigation Decision making Seismic Information Hazard Seismic i k S i i risk & assessment Communication Technologies St uctu es Structures Lifelines & critical Geotechnical facilities projects
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing motivation
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures PROBLEM: Balance the demand imposed to the structures by earthquake ground motion and the capacity that has to be provided both at the member and structure level level.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures NEED: tools for reliable estimate of actions, action effects (member , ( forces and displacements) and structural resistance to ensure that the structures designed will meet specific performance objectives against earthquakes (acceptable displacements, adequate strength & stiffness, ductility, hierarchy of failure, serviceability etc for different levels of earthquake intensity)
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures ADVANCES: a number of alternative methods are now available f nonlinear static or d il bl for li t ti dynamic analysis of structures. i l i f t t Static Analysis Response History Analysis Nonlinear Static (Standard Pseudo-Static Response Pushover) Analysis (SPA) History Analysis (SRHA) Linear Elastic Response Modal Pushover Analysis History Analysis (LRHA) ( (MPA) ) Nonlinear Response li History Analysis (NRHA) Displacement based Displacement-based Incremental Dynamic Adaptive Pushover Analysis Analysis (IDA) (APA)
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvances in modeling the cyclic behavior of Reinforced Concrete members
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Open source research software for seismic analysis of structures Permit programming Supported by large communities of users ii fhttp://opensees.berkeley.edu/ http://mae.cee.uiuc.edu/news/zeusnl.html Open source finite element software Application Programming Interface (API) http://www.csiberkeley.com/ http // csiberkele com/
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures Seismic assessment of composite structures (masonry/concrete/steel/ ( / / l/ wood)
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures Seismic rehabilitation of under- designed d i d structures National Theater of Athens:designed by Ernst (Ernestos) Moritz Theodor Ziller
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of Reinforced Concrete members Lumped plasticity Distributed plasticity (fiber models) Stiffness, Stiffness strength degradation & pinchingSextos, A., Katsanos, E. and Manolis, G. (2010) EC8-based earthquake selection procedure evaluation: validation study based on observed damage of an irregular R/C building, Soil Dynamics & Earthquake Engineering, 31(4), 583-597.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of Reinforced Concrete members• Models can becalibrated lib dversus realdamage• Flexuralfailure of thecolumns at theentrance of theSuper Marketk• Spalling• Buckling ofthe longitudinalbars• Fracture ofseveral h l hoopsSextos, A., Katsanos, E. and Manolis, G. (2010) EC8-based earthquake selection procedure evaluation: validation study based on observed damage of an irregular R/C building, Soil Dynamics & Earthquake Engineering, 31(4), 583-597.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures Coupled material & C l d t i l geometric non-linearities (pounding) under earthquake loading q g
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvances in modeling the cyclic behavior of soils and the response of SSI systems 3-Dimensional modeling of the entire soil-foundation- superstructure system
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvances in modeling the cyclic behavior of soils and the response of SSI systems
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of soils and the response of SSI systems R14 Bridge 4 g LA DWP Bridge g W180 Bridge g MGR Bridge Adobe Bridge La VetaSextos, A.G., Mackie, K.R., Stojadinović, B. and Taskari, O. N. (2008) ‘Simplified P-y relationships fro modeling embankment-abutment systems of typical California bridges’, In 14th World Conference on Earthquake Engineering, Beijing, China.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of soils and the response of SSI systems Embankment Soil (Mohr-Coulomb) Foundation Soil (Mohr-Coulomb) Backfill Soil kfill il (Mohr-Coulomb, E=60MPa, φ=39ο) Surface contact to Foundation Soil coarse mesh (Mohr-Coulomb) Pile-soil contact Foundation Soil (Mohr-Coulomb, (Mohr Coulomb, E=15MPa , φ=15ο, c=100kPa for Soil A Cracked pile and E=5MPa, φ=5ο, c=50kPa for SoilB stiffnessSextos, A.G., Mackie, K.R., Stojadinović, B. and Taskari, O. N. (2008) ‘Simplified P-y relationships fro modeling embankment-abutment systems of typical California bridges’, In 14th World Conference on Earthquake Engineering, Beijing, China.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of soils and the response of SSI systemsSextos, A.G., Mackie, K.R., Stojadinović, B. and Taskari, O. N. (2008) ‘Simplified P-y relationships fro modeling embankment-abutment systems of typical California bridges’, In 14th World Conference on Earthquake Engineering, Beijing, China.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Advances in modeling the cyclic behavior of soils and the response of SSI systemsSextos, A.G., Mackie, K.R., Stojadinović, B. and Taskari, O. N. (2008) ‘Simplified P-y relationships fro modeling embankment-abutment systems of typical California bridges’, In 14th World Conference on Earthquake Engineering, Beijing, China.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingAdvanced finite element modeling for seismic design and assessment of structures LIMITATIONS: epistemic uncertainly, that is, the uncertainty associated with modeling decisions and assumptions tends to be gradually reduced b t i certainly not negligible d ll d d but is t i l t li ibl none of these tools can be globally used for all structural systems, materials, boundary conditions and performance levels Earthquake Epistemic Material input (modeling) uncertainty uncertainty uncertainty
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platform Current analysis applications do not include both state-of-the-art soil material model and state-of-the-art structural models. state of the artKwon, Oh-Sung and Elnashai, Amr S. (2008) ‘Seismic analysis of Meloland road overcrossing using multiplatform simulation software including SSI’, Journal of Structural Engineering, 134(4), pp. 651-660.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platform • Analysis coordinator developed at Mid-America Earthquake Center (University of Illinois at ( y Urbana-Champaign) • Primarily to coordinate remotely controlled experiments and numerical analysesKwon, O.-S., Nakata, N., Elnashai, A. S. and Spencer, B. (2005) ‘A framework for multi-site distributed simulation and application to complex structural systems’, Journal of Earthquake Engineering, 9(5), pp. 741-753.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platformKwon, Oh-Sung and Elnashai, Amr S. (2008) ‘Seismic analysis of Meloland road overcrossing using multiplatform simulation software including SSI’, Journal of Structural Engineering, 134(4), pp. 651-660.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platform DOF1 DOF2 DOF3 DOF4 DOF5 DOF6 DOF7 n.1 n.2 n.3 n.4 n.5 n.6 n.7 9m Module 1 19m 32m 19m DOF7 DOF1 Module 2 M d l 3 Module Decide the static modules and the effective nodes & degrees of freedomSextos, A.G. and Taskari, O. N. (2008) ‘Comparative assessment of advanced computational tools for embankment-abutment-bridge superstructure interaction’, In 14th World Conference on Earthquake Engineering, Beijing, China.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platform www.exchange-ssi.net Duration: 2011-2014 Coordinator: Aristotle University Thessaloniki Hosting Institution: University Illinois at Urbana-Champaign
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Hybrid and Multi platform simulation Multi-platform fs (μ, σ) fc (μ, σ) Ebear.(μ, σ) Esoil (μ, σ) www.exchange-ssi.net Duration: 2011-2014 Coordinator: Aristotle University Thessaloniki Hosting Institution: University Illinois at Urbana-Champaign
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of sensor based data acquisition and management sensor-basedThe improvements in sensor and data-acquisition technologies and the use of non-contact (wireless) measurement systems, permit high quality concurrent measurementsof the displacements or stresses at thousands of points on the structures that arephysically tested.As the traditional methods of data management cannot handle such enormous amountof data, new data-visualization and analysis tools have been developed that integrate inreal time the details of the test structure with measured strains, displacements, and pcracking data. Shake Table Research Equipment Large-Scale L b L S l Laboratory E Experimentation S i i Systems Centrifuge Research Equipment Tsunami Wave Basin Large-Scale Lifeline Testing g g Field Experimentation and Monitoring Installations
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of sensor based data acquisition and management sensor-based Reaction wall, ELSA, JRC, Italy Shaking Table, E-DEFENCE, JapanShaking Table, EU-CENTRE, Italy h k bl l Centrifuge, Cambridge, U.K. Complete list of European-based facilities: project SERIES http://www.series.upatras.gr
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control Step 1 p • Modal identification via ambient vibrations Monitoring of bridge Traffic loads response imposed to the bridge Nω E  ψ  =  tr S  kΔω;ψ  -S  kΔω    ˆ *T ˆ  S  kΔω;ψ  -S  kΔω      1  k=1 k Least squares minimization Measured Refined 3D FE Model modes modeling updating Sextos, A.G., Faraonis, P., Papadimitriou, C. and Panetsos, P. (2011) ‘System identification of a R?C bridge based on ambient vibrations and 3D numericalsimulations of the entire soil-structure system’, In 3rd ECCOMAS Thematic Conf. on Comp. Methods in Structural Dynamics and Earthquake Engineering.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control 2nd Kavala Bypass Ravine Bridge 13.50m 13.50m Overall length of 170m (4 spans of 42.5m) 4 pre-cast , post-tensioned I beams of 2.80m height
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control 2nd Kavala Bypass Ravine Bridge • Piers of 4.0x4.0m hollow sections, thickness of 40cm • Pier height 30.0-50.0m • D i PGA = 0.16g Design 6 • Seismic zone I of Greek Code • Foundation height 12.0-12.8m
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control Finite element model development and updating 10cm gap 8cm gap Deck 4 Stoppers Cap beam (300x500x52)
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control .
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control . Sextos, A.G., Faraonis, P., Papadimitriou, C. and Panetsos, P. (2011) ‘System identification of a R?C bridge based on ambient vibrations and 3D numericalsimulations of the entire soil-structure system’, In 3rd ECCOMAS Thematic Conf. on Comp. Methods in Structural Dynamics and Earthquake Engineering.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control Top view ment ment Fundamental pe od in u da e ta period embankm utment-embankm the transverse direction T=1.43sec stem tem 1st branch syst utment-e sys 2nd branch . (apparently common for the two branches)Abu Abu
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ICT in support of structural health monitoring and control LIMITATIONS: • measurement quality is affected by environmental conditions • potentially initial p p y poor agreement between measured and g predicted (FE) response • complex FE models are more accurate but their updating requires huge computational effort • the optimum solution is not necessarily the one with the most reasonable physical interpretation • engineering judgement is still needed despite the major ICT advancements
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Early warning systems NEED: rapid response systems assessing in real time the structural condition of critical facilities ADVANCES: from passive, web-based post-earthquake passive web based post earthquake information content requiring no pre-event configuration, to sophisticated damage-assessment and active notification systems that require pre-event set up and IT expertise (e.g. customizable alerts, earthquake magnitude and location notifications)
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Early warning systemsCALTRANS-USGS-SHAKECAST: An application for automating ShakeMap delivery tocritical users and for facilitating notification of shaking levels at user-selected facilities. user selected Provides automatic notifications within minutes of an earthquake indicating the level of shaking and the likelihood of impact to critical facilities http://earthquake.usgs.gov/research/software/shakecast/
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Computer aided pre & post earthquake assessment Computer-aided pre- post-earthquake
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Computer aided pre & post earthquake assessment Computer-aided pre- post-earthquake PREPEARED reduces the time required between the visual on-site inspection of buildings and crisis management actions Decision D i i making On-site d t O it data Wireless E Wi l Expert t Projection in GIS acquisition system update Application: city of Duzce, Turkey k (stock size: 17050 buildings) b ildi )Sextos, A.G., Kappos, A.J. and Stylianidis, K. (2008) ‘Computer-Aided Pre- and Post-Earthquake Assessment of Buildings Involving Database Compilation, GIS Visualization, and Mobile Data Transmission’, Computer-Aided Civil and Infrastructure Engineering, 23, pp. 59-73.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Remote sensing ADVANCES: optical satellite imagery, synthetic aperture radar (SAR), (SAR) and light detection and ranging (LIDAR) for rapid estimate of the effects of earthquakes Failure geometry from Light Integration of satellite i I t ti f t llit images Detection and Ranging (LIDAR) and field reconnaissance Visual identification Integration with topographic, geologic maps and USGS of l d lid f landslides Shakemap Sh kRathje, El.M. and Adams, B.J. (2008) ‘The Role of Remote Sensing in Earthquake Science and Engineering: Opportunities and Challenges’, Earthquake Spectra, 24(2), p. 471.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Damage detection from satellite imagery: crowd sourcing http://tomnod.com/geocan
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingWeb based collaborative research & large scale dissemination of experimental dataWeb-based data. Permits the participating research teams to: • plan perform and publish experiments plan, perform, experiments. Provides: • data management software for organizing and sharing data through the hub • telepresence tools for enabling remote participation in experiment planning and execution, • visualization capabilities for viewing pre- recorded sensor data corresponding videos with common time collaboration services for promoting joint research • simulation software for computational modeling. NEEShub http://www.nees.org
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Strong ground motion data management, generation and dissemination managementUse of the web-based Next Generation Attenuation Strong Motion DatabaseNGA-Database (operated by PEER): http://peer.berkeley.edu/nga/ 3551 three-components records (10650 individual seismic records) 173 shallow crustal earthquakes from active tectonic regions world-wide
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingStrong ground motion data management, generation and dissemination management
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing C Code-based selection of seismic records: a p b b problematic p process LIMITATIONS: • code-based selection of earthquake records leads to significant b q g discrepancies in structural response 0.12<T 0 6<1 2 0 12<T1=0.6<1.2 sec
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure-specific earthquake record selection p p q process for RH analysis y Search Record database Form selection compatible criteria sets Measure Run Rank response dynamic eligible discrepancy analysis setsSextos, A., Katsanos, E. and Manolis, G. (2010) EC8-based earthquake selection procedure evaluation: validation study based on observed damage of an irregular R/C building, Soil Dynamics & Earthquake Engineering, 31(4), 583-597.
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering ComputingStructure-specific earthquake record selection p p q process for RH analysis y
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure specific earthquake record selection softwareKatsanos, E. I., Sextos, A. G. and Notopoulos, T. (2011) ‘ISSARS : An integrated systems for structural analysis and record selections’, In 3rdECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Corfu, Greece
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure specific earthquake record selection software
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure specific earthquake record selection software
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure specific earthquake record selection software
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Structure specific earthquake record selection softwareRecords are selected notonly on th b i of: l the basis f• preliminary criteria(M,R, PGA, Soil) and• frequency content f q y(best spectrummatching)• but also on theminimum discrepancyin structural response(i.e., member forces ofshear walls or roofdisplacements).di l )
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Parallel processing / Grid computing NEED: to make use of computer p p power for solving complex g p and time consuming numerical analysis problems Parallel Grid processing computingutilizing multiple processor cores for Distributing non-interactive,structural problems with a large remotely processed, workloads that processednumber of DOF involve a large number of filesPartitioning to several CPUs formultiple independent analyses andthen post-processing http://www.sdsc.edu
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Bio inspired technologies & Knowledge based expert systems Bio-inspired Knowledge-based Artificial Intelligence (AI) techniques Artificial Knowledge- K l d Case-Based Neural Based Expert Reasoning Networks System (CBR) (ANN) (KBES) (KBES)* * lacking intelligence ADVANCES: soft computing, ANN, genetic algorithms, f f i i l ih fuzzy and hybrid neuro-fuzzy systems, as well as intelligent applications for structural and geotechnical engineering.N. Lagaros, Y. Tsompanakis, (editors), “Intelligent computational paradigms in earthquake engineering”, Idea Publishers, 2006
    • The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing Conclusions• The future of research in earthquake engineering is inherently dependent onthe Information and Communication Technological advances to be made in theyears to follow and thus, it is not only the tools that will be developed based onspecific needs of the engineering community, but the needs themselves will betransformed due to the rapid technological change change.• It is probable that an unrecoverable large technological gap will develop bothhorizontally (ih i ll (i.e., world-wise) and vertically (i ld i ) d i ll (i.e., f from the research to the h h hprofessional community).• Education, collaboration, knowledge dissemination and life-long learningshould be seen as priorities of equally high value with the primary investment gyin technology.• Engineering judgment will always be the key factor for moderating results