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Abstract

The safety of the masonry structure is determined by the value of the partial factor used, which is influenced by many factors. The variability of these factors determines obtaining significant differences in the load levels of various masonry structures. Hence, the analysis of masonry structures should be carried out taking into account a sufficient range of variability of factors affecting its safety. The article presents a multi-stage safety analysis of an exemplary brick masonry column. For the construction, the relationship between partial factors used for interactions in different configurations and factors for the masonry compressive strength was examined. The analyses consisted in determining the reliability index beta with the Monte Carlo method. The article presents the results of experimental tests carried out on a real construction, as well as the results of FEM numerical simulations.
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Authors and Affiliations

Joanna Zięba
1
ORCID: ORCID
Lidia Buda-Ożóg
2
ORCID: ORCID
Izabela Skrzypczak
3
ORCID: ORCID

  1. MSc., Eng., Rzeszow University of Technology, Faculty of Civil Engineering, Department of Building Structures, Poznańska 2, Rzeszów 35-084, Poland
  2. DSc., PhD., Eng., Rzeszow University of Technology, Faculty of Civil Engineering, Department of Building Structures, Poznańska 2, Rzeszów 35-084, Poland
  3. DSc., PhD., Eng., Rzeszow University of Technology, Faculty of Civil Engineering, Department of Geodesy and Geotechnics, Poznańska 2, Rzeszów, 35-084, Poland
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Abstract

RC flat slabs are one of the most popular and effective methods of shaping plates in buildings. Although failures of entire structures are relatively rare, they cannot be excluded from the occupancy cycle of the facility. The research analysis presented in this paper is an attempt to understand more precisely the phenomena that occur in the RC flat slab system and to assess the influence of the additional protection of the flat slabs against progressive collapse in the case of failure of one of the supports. The results were obtained from destructive experimental investigations of a flat reinforced concrete slab made in scale 1:3. The collapse in the analysed model was simulated by removing three edge columns and additional loading by means of hydraulic actuator. In place of the columns removed, differential tie reinforcement was applied. The results obtained confirm that the structure achieved a much higher ultimate load than the one resulting from the design calculations.
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Authors and Affiliations

Lidia Buda-Ożóg
1
ORCID: ORCID
Joanna Zięba
1
ORCID: ORCID
Katarzyna Sieńkowska
1
ORCID: ORCID
Damian Nykiel
1
ORCID: ORCID

  1. Department of Building Structures, Faculty of Civil Engineering and Environmental Engineering, Rzeszow University of Technology, Poznańska 2, Rzeszow 35-084, Poland

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