Jaroslav Vaculik

Research Interests

Dynamics, Vibration and Vibration Control Earthquake Engineering Structural Engineering

Dr Jaroslav Vaculik

School of Civil Engineering and Construction

College of Engineering and Information Technology

Having spent several years as a consulting engineer, I have practical design experience using a variety of different structural types and materials. However, I am also familiar with some of the limitations inherent in our design standards and the challenges faced particularly in the area of seismic design.My current research focus is spread across several areas as described under the "My Research" tab below, with a particular focus on the seismic response of unreinforced masonry buildings and a key emphasis on developing outcomes that can be used by engineering practitioners.

Heritage Stone and Brick Masonry

Australia has a wealth of culturally significant heritage masonry buildings constructed from the colonial years of the early 1800s up to the early-to-mid 1900s.  Whilst these buildings tend to be among the most earthquake-prone of our overall building stock, undertaking seismic assessment of such buildings is insufficiently catered for by our modern-day design standards.

This research aims to characterise Australia's heritage stone and clay brick masonry buildings in terms of material properties and structural layouts to better understand their behaviour under earthquake loading, and to devise efficient methods for strengthening them for better earthquake performance so that they can survive for future generations.

 

Strengthening of Unreinforced Masonry with FRPs

It is well known that unreinforced masonry buildings perform poorly in earthquakes as evidenced most recently by the events in New Zealand and Italy.  To address this inherent lack of capacity, retrofitting masonry walls using fibre-reinforced polymers (FRPs) has emerged as a popular means of enhancing their seismic capacity---both for in-plane and out-of-plane loading.

Among the aims of this project are:

  • Develop a generic bond model for the interaction between FRP sheets, plates and bars to clay brick and concrete block masonry;
  • Develop mechanics-based analysis techniques for predicting the strength and ductility of FRP-strengthened walls; and
  • Investigate the influence of environmental exposure on the long-term durability of strengthened systems.

 

Out-of-Plane Response of Unreinforced Masonry Walls Under Earthquake Loading

Out-of-plane wall collapse is regarded as arguably the single greatest vulnerability of unreinforced masonry construction in earthquakes. This project comprises a long-term, ongoing research effort aimed to better understand the structural mechanics and dynamics of out-of-plane response, with the ultimate aim of developing analysis tools that can be used for practical design and assessment.

Areas of focus include:

  • Enhancement of capacity from two-way bending;
  • Building response effects including interstorey drift, dynamic amplification, and height amplification;
  • Development of alternate design approaches which are, respectively, reliant and not reliant on bond strength; and
  • Force-based and displacement-based design techniques.

Date Position Institution name
2016 - ongoing Postdoctoral Research Fellow University of Adelaide, Adelaide
2012 - 2016 Structural Engineer Wallbridge & Gilbert, Adelaide

Date Type Title Institution Name Country Amount
2012 Award Dean’s Commendation for Doctoral Thesis Excellence - - -
2011 Award TMS Journal Outstanding Paper Award (The Masonry Society, USA) for the paper "Out-of-plane flexural strength of unreinforced clay brick masonry walls" - - -
2007 Award Best student paper at the Australian Earthquake Engineering Society conference; for paper "Shaketable tests on masonry walls in two-way bending" - - -
2005 Award Honourable mention for the R. G. Drysdale Award at the 10th Canadian Masonry Symposium for the paper "Flexural strength of unreinforced clay brick masonry walls" - - -

Date Institution name Country Title
University of Adelaide, Adelaide Australia Bachelor of Engineering (1st Class Honours)
University of Adelaide, Adelaide Australia Bachelor of Science
University of Adelaide, Adelaide Australia PhD

Year Citation
2024 La Greca, J., Quigley, M., Vaculik, J., Rayner, P., & Allen, T. (2024). Bayesian analysis of ground motion models using chimney fragility curves: 2021, 5.9-Mw Woods Point intraplate earthquake, Victoria, Australia. Earthquake Spectra, 40(1), 732-759.
DOI Scopus1
2022 Burton, C., Vaculik, J., Griffith, M. C., & Visintin, P. (2022). In-situ testing of the shear strength of masonry joints – proposal for a new simplified testing approach and comparison to existing techniques. Construction and Building Materials, 321, 126319-1-126319-20.
DOI Scopus1 WoS1
2021 Gomaa, M., Vaculik, J., Soebarto, V., Griffith, M., & Jabi, W. (2021). Feasibility of 3DP cob walls under compression loads in low-rise construction. Construction and Building Materials, 301, 1-17.
DOI Scopus32 WoS27
2021 Burton, C., Visintin, P., Griffith, M., & Vaculik, J. (2021). Laboratory investigation of pull-out capacity of chemical anchors in individual new and vintage masonry units under quasi-static, cyclic and impact load. Structures, 34, 901-930.
DOI Scopus9 WoS9
2020 Vaculik, J., Visintin, P., Lucas, W., & Griffith, M. C. (2020). Durability of near-surface-mounted FRP-to-clay brick masonry retrofits under environmental exposure. Journal of Composites for Construction, 24(1), 04019058-1-04019058-18.
DOI Scopus7 WoS6
2020 Türkmen, O. S., Wijte, S. N. M., Vaculik, J., De Vries, B. T., & Ingham, J. M. (2020). High-speed pullout behavior of deep-mounted CFRP strips bonded with a flexible adhesive to clay brick masonry. Structures, 28, 1153-1172.
DOI Scopus7 WoS6
2020 Burton, C., Visintin, P., Griffith, M., & Vaculik, J. (2020). Field testing of vintage masonry: Mechanical properties and anchorage strengths. Structures, 28, 1900-1914.
DOI Scopus13 WoS13
2019 Sturm, A. B., Visintin, P., Vaculik, J., Oehlers, D. J., Seracino, R., & Smith, S. T. (2019). Analytical approach for global load-slip behaviour of FRP plates externally bonded to brittle substrates with anchors. Composites Part B: Engineering, 160, 177-194.
DOI Scopus14 WoS11
2018 Vaculik, J., & Griffith, M. (2018). Out-of-plane shaketable testing of unreinforced masonry walls in two-way bending. Bulletin of Earthquake Engineering, 16(7), 2839-2876.
DOI Scopus41 WoS37
2018 Vaculik, J., Sturm, A., Visintin, P., & Griffith, M. (2018). Modelling FRP-to-substrate joints using the bilinear bond-slip rule with allowance for friction - Full-range analytical solutions for long and short bonded lengths. International Journal of Solids and Structures, 135, 245-260.
DOI Scopus53 WoS43
2018 Vaculik, J., Visintin, P., Burton, N., Griffith, M., & Seracino, R. (2018). State-of-the-art review and future research directions for FRP-to-masonry bond research: Test methods and techniques for extraction of bond-slip behaviour. Construction and Building Materials, 183, 325-345.
DOI Scopus59 WoS50
2018 Vaculik, J., Visintin, P., & Burton, N. G. (2018). Global database of FRP-to-masonry bond strength tests. Data in Brief, 20, 2065-2071.
DOI Scopus6 WoS6
2017 Vaculik, J., & Griffith, M. (2017). Out-of-plane load-displacement model for two-way spanning masonry walls. Engineering Structures, 141, 328-343.
DOI Scopus45 WoS40
2017 Vaculik, J., & Griffith, M. (2017). Probabilistic analysis of unreinforced brick masonry walls subjected to horizontal bending. Journal of Engineering Mechanics, 143(8), 04017056-1-04017056-12.
DOI Scopus14 WoS12
2014 Vaculik, J., Griffith, M., & Magenes, G. (2014). Dry stone masonry walls in bending - Part II: analysis. International Journal of Architectural Heritage: conservation, analysis, and restoration, 8(1), 29-48.
DOI Scopus32 WoS28
2007 Griffith, M., Vaculik, J., Lam, N., Wilson, J., & Lumantarna, E. (2007). Cyclic testing of unreinforced masonry walls in two-way bending. Earthquake Engineering & Structural Dynamics, 36(6), 801-821.
DOI Scopus150 WoS124
2007 Griffith, M., & Vaculik, J. (2007). Out-of-plane flexural strength of unreinforced clay brick masonry walls. The Masonry Society Journal, Sept, 53-68.

Year Citation
2018 Ingham, J., Abeling, S., Vallis, S., Galvez, F., Swidan, M., Griffith, M., & Vaculik, J. (2018). Seismic vulnerability assessment for pre cincts of unreinforced masonry buildings in New Zealand and Australia. In Proceedings of the International Masonry Society Conferences Vol. 0 (pp. 29-56). online: International Masonry Society.
Scopus1
2016 Griffith, M., Derakhshan, H., Vaculik, J., & Nakamura, Y. (2016). Recent developments in the seismic assessment of masonry buildings. In S. Anderson (Ed.), Proceedings of the Australian Earthquake Engineering Society Conference (pp. 1-9). online: Australian Earthquake Engineering Society.
2010 Vaculik, J., Griffith, M., & Magenes, G. (2010). Collapse load predictions for masonry walls in bending. In Proceedings of 8th International Masonry Conference (pp. 172). Germany: International Masonry Society.
2010 Vaculik, J., & Griffith, M. (2010). Probabilistic approach for calculating the ultimate strength of unreinforced masonry in horizontal bending. In Proceedings of 8th International Masonry Conference (pp. 210). Germany: International Masonry Society.
2008 Vaculik, J., Lumantarna, E., Griffith, M., Lam, N., & Wilson, J. (2008). Out-of-plane seismic response of unreinforced masonry walls: An overview of research in Australia. In Proceedings of the 14th international brick & block masonry conference (pp. 1-10). Australia: University of Newcastle.
2008 Vaculik, J., & Griffith, M. (2008). Time-history analysis for unreinforced masonry walls in two-way bending. In 14th World Conference on Earthquake Engineering (pp. 1-9). China: Seismological Press of China.
2007 Vaculik, J., & Griffith, M. (2007). Shaketable tests on masonry walls in two-way bending. In Nelson Lam (Ed.), Proceedings of AEES 2007 (pp. 1-9). CDROM: AEES.
2007 Vaculik, J., Lumantarna, E., Griffith, M., Lam, N., & Wilson, J. (2007). Dynamic response behaviour of unreinforced masonry walls subject to out of plane loading. In Nelson Lam (Ed.), Proceedings of the Australian Earthquake Engineering Society Conference 2007 (pp. 1-8). Australia: AEES.
2006 Lumantarna, E., Lam, N., Wilson, J., Griffith, M., & Vaculik, J. (2006). The dynamic out-of-plane behaviour of unreinforced masonry walls. In P. Mossi, & R. Dhakal (Eds.), Progress in Mechanics of Structures and Materials: Proceedings of the 19th Australasian Conference on the Mechanics of Structures and Materials (ACMSM19), Christchurch, New Zealand, 29 November-1 December 2006 (pp. 401-408). London: Taylor and Francis.
Scopus1
2006 Vaculik, J., & Griffith, M. (2006). Cyclic behaviour of unreinforced masonry walls in two-way bedding. In D. Fisher (Ed.), Proceedings of the Seventh International Masonry Conference (pp. 1-6). UK: British Masonry Society.
2006 Lumantarna, E., Vaculik, J., Griffith, M., Lam, N., & Wilson, J. (2006). Seismic fragility curves for un-reinforced masonry walls. In K. McCue, & S. Lenz (Eds.), Proceedings of AEES 2006 (pp. 33-40). Australia: Australian Earthquake Engineering Society.
2005 Lumantarna, E., Lam, N., Wilson, J., Griffith, M., & Vaculik, J. (2005). Out-of-plane displacement behaviour of unreinforced masonry walls from time-history analyses. In N. Lam, J. Wilson, & B. Butler (Eds.), Proceedings of 'Earthquake Engineering in Australia' (pp. 1-8). Victoria, Australia: Australian Earthquake Engineering Society.
2005 Vaculik, J., Griffith, M., Lam, N., Wilson, J., & Lumantarna, E. (2005). Cyclic response of unreinforced clay brick masonry walls. In N. Lam, J. Wilson, & B. Butler (Eds.), Proceedings of 'Earthquake Engineering in Australia' (pp. 0-7). Victoria, Australia: Australian Earthquake Engineering Society.
2005 Griffith, M., & Vaculik, J. (2005). Flexural strength of unreinforced clay brick masonry walls. In A. Vermeltfoort (Ed.), Proceedings of the 10th Canadian Masonry Symposium (pp. CD ROM 1-CD ROM 11). CD ROM: University of Calgary.
2004 Vaculik, J., Griffith, M., Hogarth, B., & Todd, J. (2004). Out-of-plane flexural response tests using dry-stack masonry. In K. McCue, M. Griffith, & B. Butler (Eds.), Australian Earthquake Engineering in the New Millenium - Where to from Here: Proceedings of a Conference held by the Australian Earthquake Engineering Society 2004 (pp. 1-8). Victoria, Australia: Australian Earthquake Enigneering Society.

Year Citation
- Vaculik, J., & Griffith, M. C. (n.d.). Out-of-Plane Shaketable Testing of Unreinforced Masonry Walls in Two-Way Bending: Supplementary Material.
DOI

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