MEASURES OF REHABILITATION OF UNREINFORCED MASONRY SPORTS FACILITY WITH IRREGULARITIES

Festim ADEMI, Enis JAKUPI, Rezona FETAHU

Abstract

Considering the seismicity of the territory of North Macedonia, as well as the significant number of existing masonry buildings, it became necessary to establish a procedure for assessing the seismic resistance of these buildings, as well as the need to improve their carrying capacity by applying various strengthening measures. The sports halls as accompanying structures were built of unreinforced masonry. The literature in this area was investigated, regarding the estimation of the seismic capacity of this type of building, the characteristics of URM buildings, and the types of damages as well as strengthening measures. For the selected building, the sports hall "Partizani" in Debar, the seismic load capacity of the walls was controlled according to the valid rules for seismic design of masonry buildings. A numerical analysis was carried out and the structural response was determined. The methods for strengthening by applying steel ties and steel beams on the upper part of the walls were selected, as techniques for improving the global seismic behavior of the building with vertical irregularity. A model of the structures reinforced with steel elements was made and an analysis was carried out. Using the obtained results from the analysis, appropriate comments and conclusions were given regarding the behavior of the masonry structures, their seismic capacity, and the effectiveness of the selected strengthening procedure.

Pages: 76 - 94