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)

(2007). Experimental detection of discontinuities in pressure sensitive materials under multiaxial compression. In Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 (pp. 1098-1104).
(2006). Apparatus for testing concrete under multiaxial compression at elevated temperature (mac2T). Experimental Mechanics, 46 (4), pp. 387-398, Abstract: This paper describes a new test facility for determining material mechanical properties of structural concrete. The novel facility subjects 100 mm cubic concrete specimens to true multiaxial compression (?1 ? ?2 ? ?3) up to 400 MPa at temperatures of up to 300°C. Forces are delivered through three...
(2005). Multiaxial creep and damage under elevated temperature. In Concreep 7 - International Conference on Creep, Shrinkage and Durability of Concrete and Concrete Structures (pp. 1-10).
(2005). Hygro-thermo-mechanical analysis of a nuclear power plant prestressed concrete reactor vessel. Proceedings of the 10th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2005, Abstract: Prolongation of serviceability of nuclear power plants leads to the necessity of hygrothermo-mechanical analysis of reactor vessels. Strong computational power has to be used because such complex analysis is very demanding. This article describes the analysis of one reactor vessel located in the UK...
(2003). Multiaxial stress-induced thermal strains: constitutive modelling and laboratory findings. In COMPUTATIONAL MODELLING OF CONCRETE STRUCTURES (pp. 195-204).
(2001). The development of the Decathlon drainage channels. In 12th International Congress or the International Glassfibre Reinforced Concrete Association (pp. 3-11).
(1995). Seismic behaviour of reinforced concrete frames with energy dissipating cladding. In EUROPEAN SEISMIC DESIGN PRACTICE (pp. 487-494).
(1995). ENERGY ABSORBING ELEMENTS IN REGULAR AND COMPOSITE STEEL FRAME STRUCTURES. Engineering Structures, 17 (5), pp. 319-333.

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