Plan-asymmetric structures are subjected to torsion which increases the deformations at the edges. The torsional effects and the possibilities for the extension of the N2 method to asymmetric structures have been studied. We found that the torsional effects decrease with increasing plastic deformations. Based on this finding an analysis procedure was developed, which represents the extension of the N2 method, and which can be used for asymmetric structures.
COBISS.SI-ID: 2995553
Reinforced concrete frames with masonry infill are a common structural system. In general, the infills change the structural response substantially. Their influence may be either beneficial or detrimental. It should be taken into account in analyses which are difficult due to highly nonlinear behaviour. The research was aimed to understand the seismic behaviour of infilled frames and, then, to extend the applicability of the N2 method to this type of structures. The new method enables a relatively simple assessment of the seismic behaviour of infilled frames.
COBISS.SI-ID: 3949153
A nonparametric empirical approach, called the CAE method, was used for the determination of the deformation capacity of rectangular RC columns. The method was improved and supplemented with new estimates for the prediction error and dispersion. The complete force – drift envelope, as well as the hysteretic energy dissipation capacity and the related decrease of the ultimate drift due to cumulative damage were investigated. The results are needed for the seismic assessment of RC structures.
COBISS.SI-ID: 3666785
Within European research projects, several pseudo-dynamic and shaking table tests of large-scale prototypes of RC prefabricated industrial buildings and structural walls with openings were performed in European laboratories. Due to our expertise in numerical modelling we were invited to participate in a NEES project in the USA, where a large-scale bridge of 50 m length was tested on three parallel shaking tables. The research results have contributed to the development, improvement and calibration of numerical models.
COBISS.SI-ID: 3960673
In the laboratory the RC beams strengthened by applied steel or CFRP plates were systematically tested to obtain information on the fracture mechanisms. The behaviour of the beams was simulated by FEM models based on fracture mechanics. Two models were developed which are able to simulate the entire response of the tested beams up to fracture. The analyses demonstrate that a reasonably accurate prediction of the behavior of RC structures strengthened by surface applied plates is feasible.
COBISS.SI-ID: 3384417