1st Croatian Conference on Earthquake Engineering 1CroCEE 2021

Despite the extensive use of modern construction materials, old masonry buildings, characterized by high consumption of energy and a high risk of partial or complete destruction during earthquakes, still represent a great majority of both residential and public building stock in many earthquake‐prone countries, such as the countries in the Balkan region. Improvement of seismic resistance and energy efficiency of these buildings is very important and actual topic worldwide. The delicate problem of proving the effectiveness of the selected consolidation, retrofitting or strengthening system can be successfully overcome by using the methodology of design assisted by testing, which as methodology, has been codified in all Eurocodes.
The main goals of the research project realized by the Institute of Earthquake Engineering and Engineering Seismology UKIM-IZIIS, Skopje, in collaboration with the RÖFIX Company, Austria, have been the following:

• Assessment of the vulnerability of structure of traditional masonry
  building representative for the territory of the ex-YU countries
• Experimental investigation of the efficiency of the proposed
  methodology for seismic and energy efficiency upgrading of
  traditional masonry buildings using innovative System RÖFIX
  SismaCalce
• Definition of the process for implementation of the proposed
  methodology in real buildings

For experimental verification of the retrofitting methodology, shaking table testing of a 1:2 scaled model of a hypothetical masonry building has been performed both in its original and retrofitted state. The both models were subjected to the same experimental programme, however, due to the obviously higher resistance of the retrofitted model, the tests were continued under higher intensities of input excitation. Comparison the final test results points out that for about triple excitation level, the damage level of the retrofitted model is considerably lower.
The paper will present the experimental shaking table programme and the outcome of its realization.