Research papers

2016

Journal papers

Etienne Cheynet, Jasna Bogunovic Jakobsen and Jonas Snæbjörnsson: Buffeting response of a suspension bridge in complex terrain. Accepted for publication in Journal of Engineering Structures. http://dx.doi.org/10.1016/j.engstruct.2016.09.060 0141-0296/© 2016 Published by Elsevier Ltd.

Eythor Rafn Thorhallsson, Gudmundur Ingi Hinriksson and Jonas Thor Snæbjornsson:  Strength and stiffness of glulam beams reinforced with glass and basalt fibres.  Accepted for publication in Journal of Composites Part B. Ref: JCOMB 4566, http://dx.doi.org/10.1016/j.compositesb.2016.09.074, © 2016 Published by Elsevier Ltd.

Jónas Thór Snaebjornsson, Eythor Rafn Thorhallsson: Dynamic Characteristics of Multi-Story Reinforced Concrete Buildings. Solid State Phenomena 04/2016; 249. DOI:10.4028/www.scientific.net/SSP.249.235.

Eythor Rafn Thorhallsson, Jónas Thór Snaebjornsson: Basalt Fibers as New Material for Reinforcement and Confinement of Concrete. Solid State Phenomena 04/2016; 249. DOI:10.4028/www.scientific.net/SSP.249.79.

Etienne Cheynet, Jasna Bogunović Jakobsen, Jónas þór Snæbjörnsson: Full scale monitoring of wind and traffic induced response of a suspension bridge. MATEC Web of Conferences 10/2015; 24. DOI:10.1051/matecconf/20152404003

Conference papers

Etienne Cheynet, Jasna Bogunović Jakobsen, Jonas Snæbjörnsson, Wind-induced vibrations monitoring with satellite navigation, Challenges in Design and Construction of an Innovative and Sustainable Built Environment, 19th Congress of IABSE, Stockholm, September 21 - 23, 2016

Etienne Cheynet, Jasna Bogunovi´c Jakobsen, Jonas Snæbjörnsson, Torben Mikkelsen, Mikael Sjöholm, Jakob Mann, Per Hansen, Nikolas Angelou, Benny Svardal, Full-scale measurement of the wake of a suspension bridge. 8th Int.ernational Colloquium on Bluff Body Aerodynamics and Applications, Northeastern University, Boston, Massachusetts, USA, June 7 - 11, 2016.

Jónas Snaebjörnsson, Etienne Cheynet, Jasna Bogunovic Jakobsen: Performance evaluation of a suspension bridge excited by wind and traffic induced action. 8th European Workshop On Structural Health Monitoring (EWSHM 2016), Bilbao, Spain; 07/2016

Höskuldur Goði Þorbjargarson, Jónas Þór Snæbjörnsson, Benedikt Halldórsson, Eyþór Þórhallsson: Structural Modelling and Earthquake Analysis of a Hospital Building located within the Tjörnes Fracture Zone in Iceland. International Workshop on Earthquakes in North Iceland, Húsavík, North Iceland; 05/2016

Milad Kowsari, Benedikt Halldorsson, Birgir Hrafnkelsson, Jónas Þór Snæbjörnsson, Sigurjón Jónsson, Símon Ólafsson: On the Sensitivity of Seismic Hazard Estimates for North Iceland on the basis of Monte Carlo Methods. International Workshop on Earthquakes in North Iceland, Husavik, North Iceland; 05/2016

Milad Kowsari, Benedikt Halldorsson, Birgir Hrafnkelsson, Jónas Þór Snæbjörnsson, Símon Ólafsson, Sigurjón Jónsson: On the Sensitivity of Ground-Motion Prediction Equations for Earthquake Strong-motions in the South Iceland Seismic Zone. International Workshop on Earthquakes in North Iceland, Husavik, North Iceland; 05/2016

J.Th. Snæbjörnsson, S. Rahpeyma, B. Halldórsson, F.G. Sigtryggsdóttir: Effects of soil-structure interaction on the excitation and response of RC buildings subjected to strong-motion, Geotechnical earthquake engineering, in Proc. of the 17th Nordic Geotechnical Meeting, Reykjavik Iceland, 25th - 28th of May 2016

B. Halldorsson, C. I. Olivera, S. Rahpeyma, S. Ólafsson, R. A. Green, J.Th. Snæbjörnsson: On the HVSR estimation at Icelandic strong-motion stations. Geotechnical earthquake engineering, in Proc. of the 17th Nordic Geotechnical Meeting, Reykjavik Iceland, 25th - 28th of May 2016.

Eythor R Thorhallsson and Jón Ó Erlendsson. Continuous Basalt Fiber as Reinforcement Material in Polyester Resin. In proceedings of  2nd International conference on Mechanics of Composites, Porto 2016

Submitted articles

Etienne Cheynet, Jasna Bogunovi´c Jakobsen; Jonas Snæbjörnsson, Torben Mikkelsen, Mikael Sjöholm, Jakob Mann, Per Hansen, Nikolas Angelou, Benny Svardal, Application of short-range dual-Doppler lidars to evaluate the coherence of turbulence. Submitted to Experiments in fluids

Etienne Cheynet, Jasna Bogunovic Jakobsen, Jonas Snæbjörnsson, Joachim Reuder, Valerie Kumer, Benny Svardal. Wind characterisation by a pulsed lidar at a bridge site. Submitted to Journal of Wind Engineering & Industrial Aerodynamics

Etienne Cheynet, Jasna Bogunovic Jakobsen, Jonas Snæbjörnsson, Nikolas Angelou, Torben Mikkelsen, Mikael Sjöholm, Benny Svardal. Full-scale observation of the flow downstream of a suspension bridge deck. Submitted Journal of Wind Engineering & Industrial Aerodynamics

Marianne Inman, Eythor Rafn Thorhallsson, Kamal Azrague. A mechanical and environmental assessment of basalt fibre reinforced polymer (BFRP) rebar and steel rebar in concrete beams. Accepted for publication in Energy Procedia

2015

Journal papers

Fjóla G. Sigtryggsdóttir, Jónas Thór Snæbjörnsson, Lars Grande, Ragnar Sigbjörnsson: Interrelations in multi-source geohazard monitoring for safety management of infrastructure systems. Structure and Infrastructure Engineering 03/2015; DOI:10.1080/15732479.2015.1015147.

Fjóla G. Sigtryggsdóttir, Jónas Th. Snæbjörnsson, Lars Grande, Ragnar Sigbjörnsson: Methodology for geohazard assessment for hydropower projects. Natural Hazards 01/2015; DOI:10.1007/s11069-015-1906-4.

Jasna Bogunovic Jakobsen, Etienne Cheynet, Jonas Snæbjörnsson, Torben Mikkelsen, Mikael Sjöholm, Nikolas Angelou, Per Hansen, Jakob Mann, Benny Svardal, Valerie Kumer, Joachim Reuder, 2015, Assessment of wind conditions at a fjord inlet by complementary use of sonic anemometers and lidars, to appear in Energy Procedia, ISSN: 1876-6102, Elsevier.876-6102,

Conference papers

Eythor Thorhallsson, Jonas Thor Snaebjornsson (2015),  Basalt fibers as new material for reinforcement and confinement of concrete, Proceedings 22nd Czech Concrete Day (2015) ISBN 978-80-87158-35-7, Paper no. 075.

Jonas Thor Snaebjornsson, Eythor Thorhallsson (2015),  Dynamic Characteristics of Multi-Story Reinforced Concrete Buildings, Proceedings 22nd Czech Concrete Day (2015) ISBN 978-80-87158-35-7, Paper no. 083.

Etienne Cheynet, Jasna Bogunovic Jakobsen and Jónas Þór Snæbjörnsson, (2015), FULL-SCALE MONITORING OF WIND AND TRAFFIC INDUCED RESPONSE OF A SUSPENSION BRIDGE, EVACES'15, Experimental Vibration Analysis for Civil Engineering Structures, 19-21 October 2015, Duebendorf, Switzerland, 8 pp.

Jónas Þór Snæbjörnsson, Örvar Jónsson (2015), Full scale Monitoring of an RC Building and Analysis of Wind Induced Vibrations, ICWE14: 14th International Conference on Wind Engineering, Porto Alegre, Brazil; ISBN 978-85-66094-07-7, Paper ID 02490 (full paper, pp 15, electronic proceedings).

Jasna Bogunović Jakobsen, Etienne Cheynet, Jonas Snaebjörnsson, Torben Mikkelsen, Mikael Sjöholm, Nikolas Angelou, Per Hansen, Jakob Mann, Benny Svardal, Valerie Kumer, Joachim Reuder (2015) Application of lidars for assessment of wind conditions on a bridge site. ICWE14: 14th International Conference on Wind Engineering, Porto Alegre, Brazil; ISBN 978-85-66094-07-7, Paper ID 02426 (full paper, pp 10, electronic proceedings).

Etienne Cheynet, Jasna Bogunović Jakobsen, Jónas Þór Snaebjörnsson (2015) Buffeting response of a bridge at the inlet of a fjord. ICWE14: 14th International Conference on Wind Engineering, Porto Alegre, Brazil; ISBN 978-85-66094-07-7, Paper ID 02352 (full paper, pp 13, electronic proceedings).

Todor Zhelyazov, Eythor Thorhallsson, Jonas Thor Snaebjornsson (2015) SIMULATION OF EXPERIMENTAL RESEARCH ON STRENGTENING CONCRETE COLUMNS BY BASALT FIBER SHEETS. Concrete - Innovation and Design, fib Symposium, Copenhagen, Denmark; 05/2015, pp 8.

Eythor Thorhallsson, Todor Zhelyazov, Andri Gunnarsson, Jonas Thor Snaebjornsson (2015) CONCRETE BEAMS REINFORCED WITH PRESTRESSED BASALT BARS. Concrete-Innovation and Design, fib Symposium, Copenhagen, Denmark; 05/2015, pp 8.

Jasna Bogunovic Jakobsen, Etienne Cheynet, Jonas Snæbjörnsson, Torben Mikkelsen, Mikael Sjöholm, Nikolas Angelou, Per Hansen, Jakob Mann, Benny Svardal, Valerie Kumer, Joachim Reuder (2015) , Assessment of wind conditions at a fjord inlet by complementary use of sonic anemometers and lidars, 12th Deep Sea Offshore Wind R&D Conference, EERA DeepWind'2015, Trondheim, 4 - 6 February 2015.

Submitted articles

Etienne Cheynet, Jasna Bogunovic Jakobsen, Jonas Snæbjörnsson, Joachim Reuder, Benny Svardal, Valerie Kumer, Wind characterisation by a long-range pulsed lidar at a bridge site, Submitted to Journal of Wind Engineering & Industrial Aerodynamics in September 2015.

Etienne Cheynet, Jasna Bogunovic Jakobsen, Jonas Snæbjörnsson, Buffeting response of a suspension bridge in complex terrain, Submitted to Engineering Structures in September 2015.

Fjóla G. Sigtryggsdóttir, Jónas Thór Snæbjörnsson, Lars Grande, Ragnar Sigbjörnsson, Development of a multivariate linear regression model for dam settlement prediction and structural health assessment, Submitted to Acta Geotechnica (AGEO-D-15-00149) in May 2015, currently under Review.

2014

Jónas Þór Snæbjörnsson (2014) Monitoring and analysis of wind and earthquake response of three multi-story RC buildings, EURODYN 2014 - 9th International Conf. on Structural Dynamics, 30 June–2 July 2014, Porto, Portugal

Etienne Cheynet, Jasna Bogunovic Jakobsen and Jónas þór Snæbjörnsson (2014) Wind characteristics on a suspension bridge at the inlet of a fjord, XIII Conference of the Italian Association for Wind Engineering 22-25 June 2014, Genova, Italy, 10 pp.

Etienne Cheynet, Jasna Bogunovic Jakobsen and Jónas þór Snæbjörnsson (2014) Wind-induced response of a bridge at the inlet of a fjord, 11th Biennal Conference of the UK WIND ENGINEERING SOCIETY, 8-10 September 2014, Birmingham, United Kingdom, 4 pp.

Fjóla Sigtryggsdóttir, Jónas Snæbjörnsson, Pétur Ingólfsson, Ragnar Sigbjörnsson (2014) Geohazard assessment and monitoring for the Kárahnjúkar Hydropower Project main reservoir and dams - A Case study from Iceland, submitted to Engineering Geology.

Fjóla Gudrún Sigtryggsdóttir, Jónas Th. Snæbjörnsson, Lars Grande, Ragnar Sigbjörnsson (2014) Geohazards interrelation and multidisciplinary monitoring for safety and sustainability of reservoirs and dams, NHAZ-D-14-00252, submitted to Natural Hazards.

Fjóla G. Sigtryggsdóttir, Jónas Th. Snæbjörnsson, Lars Grande, Ragnar Sigbjörnsson (2014) Interrelations in multi-source geohazard monitoring for safety management of infrastructure systems, NSIE-2014-0205.R1, submitted to Structure and Infrastructure Engineering.

Ragnar SIGBJÖRNSSON, Símon ÓLAFSSON, Jónas Thór SNÆBJÖRNSSON and Rajesh RUPAKHETY (2014) RESPONSE SPECTRA BASED ON A THEORETICAL MODEL APPLIED TO STRONG MOTION DATA, paper no. 2039, Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Jónas Thór SNÆBJÖRNSSON, Rajesh RUPAKHETY and Ragnar SIGBJÖRNSSON (2014) WIND TURBINES IN SEISMIC ENVIRONMENT ‐ A CASE STUDY, paper no. 2037 Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Ragnar SIGBJÖRNSSON, Simon ÓLFSSON, Rajesh RUPAKHETY, Benedikt HALLDÓRSSON, Puja ACHARYA and Jónas Th. SNÆBJÖRNSSON (2014) STRONG‐MOTION MONITORING AND ACCELEROMETRIC RECORDINGS IN ICELAND, paper no. 2034, Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Ragnar SIGBJÖRNSSON, Rajesh RUPAKHETY, Benedikt HALLDORSSON and Jonas Thór SNÆBJÖRNSSON (2014) ON THE MODELLING OF INCOHERENCE OF STRONG‐MOTION ‐ A STUDY OF THE MAY 2008 ÖLFUS EARTHQUAKE, paper no. 3329, Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Todor ZHELYAZOV, Eythor THORHALLSSON, Jónas SNAEBJÖRNSSON, Ragnar SIGBJÖRNSSON, Símon ÓLAFSSON (2014) SEISMIC ISOLATION ‐ ASSESSMENT OF THE DAMPING CAPACITY, paper no. 2038, Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Eythor Rafn THORHALLSSON, Einar Magnus EINARSSON and Jonas Thor SNAEBJORNSSON (2014) SEISMIC DESIGN OF LOW RISE RC SHEAR WALL BUILDINGS IN SOUTH ICELAND LOWLAND,  paper 1172, Second European Conference on Earthquake Engineering and Seismology (2ECEES), 24-29 August, Istanbul, Turkey, 12 pp.

Eythor Thorhallsson, Andri Gunnarsson, Jonas Thor Snaebjornsson: SIMULATION OF EXPERIMENTAL RESEARCH OF CONCRETE BEAMS PRESTRESSED WITH BFRP TENDONS.  Nordic Concrete Research Symposium, Reykjavik, Iceland; 08/2014

Eythor Thorhallsson, Sigurdur Runar Birgisson: SHEAR STRENGTH OF CONCRETE BEAMS WITHOUT SHEAR REINFORCEMENT. Nordic Concrete Research Symposium, Reykjavik, Iceland; 08/2014

Sveinbjorn Sveinbjornsson, Þórdís Björnsdóttir, Guðbjartur Jón Einarsson, Eythor Thorhallsson: ELASTIC MODULUS OF CONCRETE WITH ICELANDIC BASALT AGGREGATES. Nordic Concrete Research Symposium, Reykjavik, Iceland; 08/2014

Eythor Thorhallsson, Jon Olafur Erlendsson, Guðmundur T Bergsson: Composite lighting poles from basalt fibers. Conference: 1st International Conference on Mechanics of Composites, At Stony Brook University, Long Island, USA

2013                     

Eythor Thorhallsson, Jón Ólafur Erlendsson, Ögmundur Erlendsson: Basalt fiber introduction. NordMin Information Day and Brokerage Event, Copenhagen; 11/2013

Thorhallsson E. R; Konráðsson A. (2013) Renovation of concrete columns by wrapping basalt fiber sheets. Proceedings of the IBASE conference Rotterdam

Thorhallsson E. R, Gudmundsson, S.H (2013)  Test of prestressed basalt FRP concrete beams with and without external stirrups. In proceedings of Fib symposium Engineering a Concrete future: Technology, modelling & Construction.

Sigtryggsdottir FG, Snæbjörnsson JTh, Sigbjörnsson R, Grande L (2013) Rockfill dam settlement data. Processing and statistical analysis. Hydropower 2013-ChinaCold 2013 Annual Meeting, The 3rd International Symposium on Rockfill Dams, China 2013 (pp. 10).

Gardarsson SM, Sigtryggsdottir FG, Palmason PR, Ingolfsson P, Measures in the Hafrahvammagljufur Canyon to Limit Scour due to Operation of the Kárahnjúkar Dam Spillway; ICOLD 2013, Seattle

Sigtryggsdottir FG, Snæbjörnsson JTh, Ingolfsson P, Sigbjörnsson R (2013) Research on geohazards during construction of the KHP, ICOLD 2013 International Symposium, Seattle, WA, USA. (pp. 10).

Sigtryggsdottir FG, Snæbjörnsson JTh, Ingolfsson P, Sigbjörnsson R (2013) Organization of the Hálslón impounding monitoring of geohazards, ICOLD 2013 International Symposium, Seattle WA, USA. (pp. 10)

Sigtryggsdottir FG, Snæbjörnsson JTh, Ingolfsson P, Sigbjörnsson R (2013) Results from the monitoring of geohazards since the impounding of the Hálslón reservoir, ICOLD 2013 International Symposium, Seattle WA, USA. (pp. 10)

Sigtryggsdóttir FG, Grande L, Sigbjörnsson R, Evaluation of the Kárahnjúkar Dam Settlement Behaviour using Monitoring Data, ICOLD 2013 International Symposium, Seattle WA, USA. (pp. 10)

Jonas Thor Snæbjörnsson & Einar Thor Ingolfsson (2013) Full-Scale Monitoring of the Dynamic Behaviour of a 20 story RC Building, The 12th Americas Conference on Wind Engineering (12ACWE), Seattle, Washington, USA, June 16-20, 2013 (pp.20).

Jonas Thor Snæbjörnsson and Einar Thor Ingolfsson (2013) Monitoring and Analysis of Wind Induced Vibrations of a 20 story RC Building, Proceedings of the 6th European and African Conference on Wind Engineering, Cambridge, UK (pp. 8).

Ragnar Sigbjörnsson, Jónas Þór Snæbjörnsson, Benedikt Halldórsson (2013). Hröðunarmælingar. Náttúruvá á Íslandi: Eldgos og jarðskjálftar. Viðlagatrygging Íslands/Háskólaútgáfan (ritstjórar: Júlíus Sólnes, Freysteinn Sigmundsson, Bjarni Bessason), 2013b bls. 533-536 (in Icelandic).

Kristín Vogfjörd, Ragnar Sigbjörnsson, Jónas Þór Snæbjörnsson (2013). Suðurlandsskjálftarnir 2000. Náttúruvá á Íslandi: Eldgos og jarðskjálftar. Viðlagatrygging Íslands/Háskólaútgáfan (ritstjórar: Júlíus Sólnes, Freysteinn Sigmundsson, Bjarni Bessason), 2013, bls. 611-627 (in Icelandic).

Kristín Vogfjörd, Ragnar Sigbjörnsson, Jónas Þór Snæbjörnsson, Benedikt Halldórsson (2013). Suðurlandsskjálftarnir 2008. Náttúruvá á Íslandi: Eldgos og jarðskjálftar. Viðlagatrygging Íslands/Háskólaútgáfan (ritstjórar: Júlíus Sólnes, Freysteinn Sigmundsson, Bjarni Bessason), 2013, bls. 628-633 (in Icelandic).

S. U. Sigurdsson, R. Rupakhety, R. Sigbjörnsson, J. T. Snæbjörnsson, E. R. Thorhallsson, F. G. Sigtryggsdottir (2013) Concrete shear wall buildings founded on gravel cushions, International Conference SE-EEE 1963-2013, 50 Years of Skopje Earthquake, 50 Years of European Earthquake Engineering, Skopje, Macedonia, May 2013.

R. Sigbjörnsson, R. Rupakhety, B. Halldorsson, J. T. Snæbjörnsson, S. Ólafsson (2013). The May 2008 Ölfus Earthquake in South Iceland: Modelling incoherence of strong ground motion, International Conference SE-EEE 1963-2013, 50 Years of Skopje Earthquake, 50 Years of European Earthquake Engineering, Skopje, Macedonia, May 2013.

2012

Thorhallsson E.R.; Bjarnason P. (2012). Test of rectangular confined concrete columns for strength and ductility. 15 WCEE, World Conference of Earthquake Engineering LISBOA

Thorhallsson E.R.,Jonsson B, S.(2012), Test of prestressed concrete beams with BFRP tendons. CICE, ROME

J.Th. Snæbjörnsson, F.G. Sigtryggsdóttir, Ragnar Sigbjörnsson (2012) Soil-structure interaction effects on the excitation and response of a low-rise RC building subjected to near- and far-fault earthquakes. Proc. of the 15th World Conf. on Earthquake Engineering (15WCEE), Lisbon, Portugal.

F.G. Sigtryggsdottir, J.Th. Snæbjörnsson & P.R. Palmason (2012) On the Seismic Design History and Analysis of the Desjararstifla dam in Iceland. Proceedings of the 15th World Conference on Earthquake Engineering (15WCEE), Sept 24-29, Lisbon, Portugal.

Jonas Thor Snæbjörnsson (2012) Short- and long term changes in dynamic characteristics of a medium rise RC building, Proceedings fib Symposium, Concrete structures for sustainable community, ed. D.H. Gager & J. Silfwerbrand (p.561-564) 11–14 June, KTH, Stockholm, Sweden (ISBN 978-91-980098-1-1)

2011

Jónas Thór Snæbjörnssona, Ragnar Sigbjörnsson (2011),The dynamic behaviour of medium rise RC buildings in a windy environment, In Proceedings of the 13th International Conference on Wind Engineering (ICWE13), Amsterdam 10.-15. Juli (8pp).

Jonas Thor Snæbjornsson, Knut Inge Edvardsen, Jasna Bogunovic Jakobsen, Bjarni Bessason (2011), Numerical analysis of vortex shedding of a light mast , In Proceedings of the 13th International Conference on Wind Engineering (ICWE13), Amsterdam 10.-15. Juli (8pp).

Thorhallsson E.R.; Bjarnason P. (2011). Test of retangular confined concrete columns for strength and ductility. fib Symposium PRAGUE 2011

Thorhallsson E.R.,Konráðsson A., Kubens S.(2011), Strengthening of concrete columns by wrapping basalt fiber matrix.  Nordic Concrete Research Symposium 2011

Test of Retangular Confined Concrete Columns for strength and ductility
Authors: Eythor Thorhallsson and Pall Bjarnason. The paper on pdf.  

Concrete Cylinders Confined with Basalt Fibre Reinforced Polymer
Authors: Eythor Thorhallsson, Arngrímur Konráðsson and Stefan Kubens. The paper on pdf.

2010

Analysis of Concrete Walls under Earthquake Action Influence from different types of Foundation.
Authors: Eythor Thorhallsson and Helgi Olafsson. The paper on pdf.

Thorhallsson E.R., Rikhardsson I.S., Olafsson A. M., Olafsson H. S. (2010). Analysis of a squat concrete wall, difference in translation during seismic excitation due to foundation support. , 9th US National/10th Canadian Conference on Earthquake Engineering

Thorhallsson E.R, Ólafsson H. (2010) Analysis of Concrete walls under Earthquake Action. Influence from different types of Foundation, 14 European Conference of Earthquake Engineering

2009

Analysis of a squat concrete wall, difference in translation during seismic exitation due to foundation support.
Authors: Eythor Thorhallson, Indridi Rikhardsson, Adalsteinn Olafsson and Helgi Olafsson. The paper on pdf.

 

 


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