Effect of the variability in plan of concrete mechanical properties on the seismic response of existing RC framed structures

The Effects of the Axial Load Variation on the Seismic Performance of Existing Rc Buildings

“…As can be noted, the range of capacities provided by EC8 is relevantly smaller than the one obtained when the probabilistic strength variability is considered, even for the lowest assumed CoV (CoV = 15%). For higher values of CoV, more likely to be found in existing buildings [9][10]14], the difference between the two ranges is even more relevant. …”

“…The study is carried out with reference to a case-study, i.e. a doubly symmetric 4-storey RC building [9][10][11][12][13], representing a typical example of pre-seismic code structure.…”

Reinforced concrete structure: Non destructive in situ strength assessment of concrete

“…It is, in fact, well known [7][8][9] that a proper evaluation of concrete strength is essential to correctly determine the seismic performance of existing buildings. It has been found that formulations available in technical literature provide different results from the actual values.…”

Predicting displacement demand of multi-storey asymmetric buildings by nonlinear static analysis and corrective eccentricities

“…In fact, the seismic response of these structures is characterised by both the translation and rotation of decks. The nonlinear static method of EC8 does not provide a reliable prediction of the torsional component of seismic response, which can be quantified in terms of the increase in the maximum displacements of the sides of the deck or of the maximum deck rotation, and is effective only for torsionally-stiff systems [12][13][14][15][16][17][18]. This applies also to nonlinear static methods adopted in other seismic codes.…”