Earthquakes and Structures

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Strengthening techniques for masonry structures of cultural heritage according to recent Croatian provisions

  • Hadzima-Nyarko, Marijana (Faculty of Civil Engineering and Architecture Osijek, University of J.J. Strossmayer) ;
  • Ademovic, Naida (Faculty of Civil Engineering in Sarajevo, University of Sarajevo) ;
  • Pavic, Gordana (Faculty of Civil Engineering and Architecture Osijek, University of J.J. Strossmayer) ;
  • Sipos, Tanja Kalman (Faculty of Civil Engineering and Architecture Osijek, University of J.J. Strossmayer)
  • Received : 2018.03.27
  • Accepted : 2018.08.31
  • Published : 2018.11.25
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Abstract

The buildings of architectural and cultural heritage are mostly built with stone or brick wall elements, which are connected using limestone or limestone cement mortar, without a full knowledge of the mechanical properties of masonry structures. The compatibility of heritage masonry buildings with valid technical specifications and the rules for earthquake resistance implies the need for construction work such as repairs, strengthening or reconstruction. By strengthening the masonry buildings, ductility and bearing capacity are increased to a level, which, in the case of the earthquake design, allows for some damage to happen, however the structure retains sufficient usability and bearing capacity without the possibility of collapse. Comparison between traditional and modern techniques for seismic strengthening of masonry buildings is given according to their effects, benefits and disadvantages. Recent Croatian provisions provided for heritage buildings enabling deviation of technical specifications are discussed.

Keywords

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