Concrete and Earthquake Engineering Research Group

Department of Civil & Structural Engineering

Dr Mihail Petkovski

Lecturer

Contact

m.petkovski@sheffield.ac.uk

Department of Civil and Structural Engineering
Sir Frederick Mappin Building
Mappin Street,
Sheffield,
S1 3JD

Profile

After graduating from Sts Cyril and Methodius University in 1982, Mihail Petkovski worked for 11 years in the Institute for Earthquake Engineering and Engineering Seismology (IZZIS) in Macedonia, as a research associate (1982-1990) and lecturer (1990-1993). He worked on research projects involving (i) quasi-static tests of steel structure assemblies, (ii) in-situ dynamic testing of full scale structures and (iii) shaking table testing of reduced scale models of concrete and masonry buildings and prototypes of structures for high-voltage networks and equipment for nuclear power plants. During this period Mihail obtained an MSc degree in Earthquake Engineering.

Mihail joined The University of Sheffield in 1993 as a PhD Student. In 1997 he was employed by as a research associate in the Department of Civil and Structural Engineering. In the period between 1997 and 2001 he developed mac2T, Sheffield’s unique facility for multiaxial compression of concrete at elevated temperature. Mihail designed and commissioned the hardware and wrote the software for data acquisition and control of the rig. In the last 10 years mac2T was used for over 300 complex multi-stage experiments, in a succession of research projects funded by EPSRC, EU, UK government and Industry (Nuclear Electric/British Energy, MOD/QinetiQ). In 2007 Mihail was appointed Lecturer in Structural Dynamics in the Department of Civil and Structural Engineering at The University of Sheffield.

Recent activities and achievements

Mihail’s research interests are:

Experimental continuum mechanics of pressure sensitive materials:

  • concrete at elevated temperature: effects of heat-load regimes on mechanical properties and changes in the microstructure of concrete, with a focus on LITS (load induced thermal strain);
  • concrete and rock under multiaxial compression: relationship between development of damage in the material and the macroscopically observed stress-strain behaviour (of test specimens).

Earthquake engineering of multi-storey buildings:

  • structural systems for improved seismic behaviour of buildings: connections and plastic hinge regions in steel and concrete frames;
  • systems for control of the seismic response of frames: passive friction/yield connections and semi-active control.

Qualifications

PhD, University of Sheffield
MSc, Earthquake Engineering, Sts. Cyril and Methodius University, Macedonia
MEng, Civil and Structural Engineering, Sts. Cyril and Methodius University, Macedonia

Publication(s)

(2012). Novel cold-formed steel elements for seismic applications. 21st International Specialty Conference on Cold-Formed Steel Structures - Recent Research and Developments in Cold-Formed Steel Design and Construction, pp. 771-784, Abstract: Novel cold-formed steel (CFS) elements are investigated in this paper for seismic resistant multi-storey moment frames. Premature local buckling and low out-of-plane stiffness are known as the main structural deficiencies of CFS sections with thin-walled elements. These lead to low energy...
(2011). Ductile moment-resisting frames using cold-formed steel sections: An analytical investigation. Journal of Constructional Steel Research, 67 (4), pp. 634-646.
Sabbagh AB, Petkovski M, Pilakoutas K, Mirghaderi R (2011). Ductile moment-resisting frames using cold-formed steel sections: An analytical investigation. Journal of Constructional Steel Research, 67 (4), pp. 634-646, Abstract: This paper presents an investigation on the potential use of cold-formed steel sections (CFS sections) in moment-resisting frames (MRFs) for seismic applications. The main limitation of CFS sections is the low out-of-plane stiffness of their thin-walled elements which leads to low ductility. The...
(2010). Cold-formed steel moment resisting frames in seismic areas. In 14th European Conference on Earthquake Engineering (pp. 378-387).
Petkovski M (2010). Effects of stress during heating on strength and stiffness of concrete at elevated temperature. Cement and Concrete Research, 40 (12), pp. 1744-1755, Abstract: Concrete in structures exposed to high temperatures is practically always heated under stress. Yet, there are few experimental studies in which the concrete was heated under stress and then loaded to the peak, and most of these were performed under uniaxial compression. This paper reports on an...
(2010). An integrated thin-walled steel skeleton structure (two full scale tests). Journal of Constructional Steel Research, 66 (3), pp. 470-479.
(2010). Effects of stress during heating on strength and stiffness of concrete at elevated temperature. Cement and Concrete Research, 40 (3), pp. 1744-1755.
(2010). Finite element analysis of ground borne vibrations in sensitive buildings using inputs from free field measurements. In Proceedings of ISMA2010 - International Conference on Noise and Vibration Engineering including USD2010 (pp. 759-772).
(2009). Ground borne vibration effects on sensitive structures. In Proceedings of the 13th Asia Pacific Vibration Conference 09.

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