Safety assessment of strengthened floor slab structures in a historic department store in Wroclaw

Abstract

The subject of the paper are existing intermediate steel/ceramic ceiling structures on four levels from "-1" to "2" in a remodelled historic department store in Wroclaw, which are reinforced with an extra concrete flooring slab cast on a trapezoidal sheet in the post-war period. The purpose of this work is to check the possibility of leaving in these reinforced brick slabs with Förster‘s clay block, ceiling structures, as part of the reconstruction of this building after 2005. The scope of work includes the diagnostics of structural elements for these floor slabs with material tests.