Leon D. Wegner

     Leon D. Wegner  B.E., M.A.Sc., Ph.D.

    Professor of Civil and Geological Engineering
    Head of the Department of Civil and Geological Engineering

    Biography

    Education and Experience

    B.E.(Sask.), M.Sc.(Tech U. of Nova Scotia), Ph.D.(M.I.T.)

    SpecializationStructures/Materials: Mechanics of Composite Materials, Fibre-reinforced Concrete, Structural Health Monitoring

    Publications

    Refereed Journal Publications
    • Beskhyroun, S., Wegner, L.D. and Sparling, B.F. (2011). New methodology for the application of vibration-based damage detection techniques, Structural Control and Health Monitoring, 18(online 23 May), 1-18. Available online at: http://onlinelibrary.wiley.com/doi/10.1002/stc.456/full
    • Zhou, Z., Wegner, L.D. and Sparling, B.F. (2010). Structural Health Monitoring of Precast Concrete Box Girders using Selected Vibration-Based Damage Detection Methods, Advances in Civil Engineering, 2010(Article ID 280685), 1-21. Available online at: http://www.hindawi.com/journals/ace/aip.280685.html
    • Alwash, M., Sparling, B.F. and Wegner, L.D. (2009). Influence of Excitation on Dynamic System Identification for a Multi-Span Reinforced Concrete Bridge, Advances in Civil Engineering, 2009(Article ID 859217), 1-18. Available online at: http://www.hindawi.com/journals/ace/2009/859217.html
    • Boghossian, E. and Wegner, L.D. (2008). Use of flax fibres to reduce plastic shrinkage cracking in concrete, Cement and Concrete Composites, 30(10), 929-937.
    • Zhou, Z., Wegner, L.D. and Sparling, B.F. (2007). Vibration-based detection of small-scale damage on a bridge deck, ASCE Journal of Structural Engineering, 133(9), 1257-1267.
    • Sparling, B.F. and Wegner, L.D. (2007). Estimating peak wind load effects in guyed masts, Wind and Structures: An International Journal, 10(4), 347-366.
    • Siddique, A.B., Sparling, B.F. and Wegner, L.D. (2007). Application of vibration-based damage detection to an integral abutment bridge, Canadian Journal of Civil Engineering, 34(3), 438-452. Available online at: http://cjce.nrc.ca/
    • Wang, J., Milne, D., Wegner, L.D. and Reeves, M.J. (2007). Numerical evaluation of the effects of stress and excavation surface geometry on the zone of relaxation around open stope hanging walls, International Journal of Rock Mechanics and Mining Sciences, 44(February), 289-298.
    • Shahidi, F., Wegner, L.D. and Sparling, B.F. (2006). Investigation of bond between FRP bars and concrete under sustained loads, Canadian Journal of Civil Engineering, 33(11), 1426-1437. Available online at: http://cjce.nrc.ca/
    • Sparling, B.F. and Wegner, L.D. (2006). Comparison of frequency- and time-domain analyses for guyed masts in turbulent winds, Canadian Journal of Civil Engineering, 33(2), 169-182. Available online at: http://cjce.nrc.ca
    Refereed Conference Proceedings
    • Beauregard, C.J., Sparling, B.F. and Wegner, L.D. (2012). Condition Assessment of a Timber Bridge Substructure using Vibration-based Methods and Pattern Recognition Techniques, Third International Structural Specialty Conference CSCE, Edmonton, AB, June 6-9, Paper No. STR-1160, (10 pages) (CD Rom).
    • Beauregard, C.J., Wegner, L.D. and Sparling, B.F. (2011). Detection of support deterioration under a simply supported timber bridge using vibrations, Fifth International Conference on Structural Health Monitoring of Intelligent Infrastructure, Cancun, Mexico, December 11-15, 2011, (8 pages) (CD Rom).
    • Alwash, M., Sparling, B.F. and Wegner, L.D. (2010). Use of impact excitation to measure the modal parameters of highway bridges, 8th International Conference on Short and Medium Span Bridges, Niagara Falls, Ontario, Canada, August 3-6, Paper No. GC-256, (9 pages) (CD Rom).
    • MacLeod, A.B., Wegner, L.D. and Sparling, B.F. (2010). Monitoring the behaviour of a century-old steel through truss bridge, 8th International Conference on Short and Medium Span Bridges, Niagara Falls, Ontario, Canada, August 3-6, Paper No. GC-241, (10 pages) (CD Rom).
    • Beauregard, C.J., Sparling, B.F. and Wegner, L.D. (2010). Vibration-based Damage Detection for Support Softening Under a Simply Supported Timber Bridge, 3rd International CSCE Structures Specialty Conference, Winnipeg, MB, June 9-12, 2010, Paper No. ST-071, (CD Rom).
    • Wang, Y., Wegner, L.D. and Sparling, B.F. (2009). Sensitivity of test procedures for vibration-based damage detection on a multi-girder bridge superstructure, 4th International Conference on Structural Health Monitoring on Intelligent Infrastructure (SHMII-4), Zurich, Switzerland, July 22-24, (10 pages) (CD Rom).
    • Paturova, A., Sparling, B.F. and Wegner, L.D. (2009). Influence of vertical reinforcement and lateral confinement on the axial capacity of masonry walls, 11th Canadian Masonry Symposium, Toronto, ON, May 31 - June 3, Paper No. 211, (10 pages) (CD Rom).
    • Wang, Y., Sparling, B.F. and Wegner, L.D. (2008). Vibration-based damage detection on a multi-girder bridge deck, 2nd CSCE International Structural Specialty Conference, Canadian Society for Civil Engineering, Quebec, Quebec, June 10-13, Paper No. ST-302, (12 pages) (CD Rom).
    • Chen, Y. and Wegner, L.D. (2008). Plastic shrinkage properties of baler twine fibre reinforced concrete, CSCE Annual Conference, Canadian Society for Civil Engineering, Quebec, Quebec, June 10-13, Paper No. GC-405, (10 pages) (CD Rom).
    • Sun, Y., Wegner, L.D. and Sparling, B.F. (2007). Vibration-based damage detection of support softening under a timber bridge stringer, 3rd International Conference on Structural Health Monitoring of Intelligent Infrastructure, Vancouver, BC, November 13-16, Paper No. 81, (8 pages) (CD Rom).
    • Alwash, M., Sparling, B.F. and Wegner, L.D. (2006). Influence of the Excitation Source on Modal Parameter Estimation for the Red Deer River Bridge, Proceedings of the 1st CSCE International Structural Specialty Conference, Calgary, AB, May 23-26, Paper No. ST-028, (CD Rom).
    • Siddique, A.B., Wegner, L.D. and Sparling, B.F. (2006). Identifying damage on a bridge deck using vibration-based damage indices derived from limited measurements, Proc. of SPIE: Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V, San Diego, California, USA, February 26 - March 2 2006, Paper No. 6176-37, (CD Rom).
    Non-refereed Conference Proceedings
    • MacLeod, A., Wegner, L.D. and Sparling, B.F. (2009). Structural health monitoring of the Traffic Bridge in Saskatoon, SK, CSCE 2009 Annual General Conference, St. John's, NL, May 27 - 30, Paper No. GC-164, (10 pages) (CD Rom).
    • Pham, T.A., Sparling, B.F. and Wegner, L.D. (2007). Temperature effects on structural health monitoring of an integral abutment bridge, Proceedings of the IOMAC 2007, International Operational Modal Analysis Conference, Copenhagen, Denmark, April 30 - May 2, Paper No. 63, (8 pages) (CD Rom).
    Conference Presentations / Poster Presentations
    • Wegner, L.D. and Sparling, B.F. (2009). Developments in vibration-based damage detection for bridges, Conference and Workshops of the ISIS Canada Network Association, Toronto, Ontario, May 7-8, (2 pages).
    • Pham, T.A., Sparling, B.F. and Wegner, L.D. (2007). Temperature effects on structural health monitoring of an integral abutment bridge, International Operational Modal Analysis Conference, Copenhagen, Denmark, April 30 - May 2, Paper No. 63, (8 pages).
    Published Book Chapter
    • Christensen, P.N., Wegner, L.D. and Sparks, G.A. (2011). Life cycle savings of structural health monitoring: a value of information approach, Chapter 1, Monitoring Technologies for Bridge Management, Edited by Bakht, B., Mufti, A.A., and Wegner, L.D., Multi-Science Publishing Co. Ltd., Brentwood, Essex, U.K., 1-31.
    • Wegner, L.D., Sparling, B.F. and Bagchi, A. (2011). Vibration-based Monitoring, Chapter 8, Monitoring Technologies for Bridge Management, Edited by Bakht, B., Mufti, A.A., and Wegner, L.D., Multi-Science Publishing Co. Ltd., Brentwood, Essex, U.K., 207-258.
    Published Book
    • Bakht, B., Mufti, A.A. and Wegner, L.D. (2011). Monitoring Technologies for Bridge Management, Edited by Bakht, B., Mufti, A.A., Wegner, L.D., Multi-Science Publishing Co. Ltd., Brentwood, Essex, U.K., (584 pages). Available online at: http://www.multi-science.co.uk/mtbm_bakht-book.htm

    Research Grants

    2010-2011

    • Principal Investigator, Use of flax fibre as a reinforcement for concrete, Agriculture Development Fund, Contract.
    • Principal Investigator, Vibration-based damage detection for bridges, NSERC, Discovery Grant.

    2009-2010

    • Principal Investigator, Summer Research Assistant, USTEP, Board of Governor grant.
    • Principal Investigator, Use of flax fibre as a reinforcement for concrete, Agriculture Development Fund, Contract.
    • Principal Investigator, Vibration-based damage detection for bridges, NSERC, Discovery Grant.

    2008-2009

    • Principal Investigator, Summer Research Assistant, USTEP, Board of Governor grant.
    • Principal Investigator, Use of flax fibre as a reinforcement for concrete, Agriculture Development Fund, Contract.
    • Principal Investigator, Vibration-based damage detection for bridges, NSERC, Discovery Grant.

    2007-2008

    • Co-Principal Investigator, Vibration based damage detection for ISIS innovative bridge decks, ISIS Canada Network of Centres of Excellence, Research Grant (Project Leader).
    • Principal Investigator, Vibration-based damage detection for bridges, NSERC, Discovery Grant.
    • Co-Investigator, Real-time monitoring of large scale structures, NSERC, Research Tools and Instruments - Category 1.

    Teaching

    2011-2012

    • CE295.3 - Project 1
    • CE321.3 - Structural Syst and Materials
    • CE806.3 - Innovative Structural Technologies
    • GE124.3 - Engineering Mechanics I

    2009-2010

    • CE212.3 - Civil Engineering Materials
    • CE295.3 - Design Project
    • CE321.3 - Structural Syst and Materials
    • CE806.3 - Innovative Structural Technologies

    2008-2009

    • CE212.3 - Civil Engineering Materials
    • CE295.3 - Design Project
    • CE321.3 - Structural Syst and Materials

    2007-2008

    • CE212.3 - Civil Engineering Materials
    • CE295.3 - Design Project
    • CE321.3 - Structural Syst and Materials
    • CE802.3 - Theory of Elasticity 1
    • CE806.3 - Innovative Structural Tech

    Research Projects

    2011-2012

    • Structural health monitoring of bridge structures: Identifying damage on multi-girder bridges using vibration-based damage detection
    • Structural health monitoring of bridge structures: Vibration-based damage detection of timber bridges
    • Use of flax fibre as a reinforcement for concrete

    2010-2011

    • Characterization of iron based shape memory alloy for fibre reinforcement in concrete
    • Structural health monitoring of bridge structures: Identifying damage on multi-girder bridges using vibration-based damage detection
    • Structural health monitoring of bridge structures: Influence of excitation type and measurement noise for vibration-based damage detection
    • Structural health monitoring of bridge structures: Vibration-based damage detection of timber bridges
    • Structural health monitoring of the Traffic Bridge in Saskatoon
    • Use of flax fibre as a reinforcement for concrete

    2009-2010

    • Structural health monitoring of bridge structures: Influence of environmental effects
    • Structural health monitoring of bridge structures: Influence of excitation type and measurement noise
    • Structural health monitoring of bridge structures: Numerical modelling for damage detection of ISIS innovative bridge decks
    • Structural health monitoring of bridge structures: Structural health monitoring of timber bridges
    • Use of flax fibre as a reinforcement for concrete

    2008-2009

    • Structural health monitoring of bridge structures: Influence of environmental effects
    • Structural health monitoring of bridge structures: Influence of excitation type and measurement noise
    • Structural health monitoring of bridge structures: Numerical modelling for damage detection of ISIS innovative bridge decks
    • Structural health monitoring of bridge structures: Structural health monitoring of timber bridges
    • Use of flax fibre as a reinforcement for concrete

    2007-2008

    • Evaluation of natural and recycled fibres for use in fibre-reinforced concrete and fibre-reinforced polymers
    • Structural health monitoring of bridge structures: Influence of environmental effects
    • Structural health monitoring of bridge structures: Influence of excitation type and measurement noise
    • Structural health monitoring of bridge structures: Numerical modelling for damage detection of ISIS innovative bridge decks
    • Structural health monitoring of bridge structures: Saskatoon overpass field assessment
    • Structural health monitoring of bridge structures: Structural health monitoring of timber bridges