Seismic response of different variants of the three-story reinforced concrete frame structure is compared. The basic structure is representative of building practice before the adoption of seismic codes. This structure has been compared with four modified variants, which were designed in accordance with the Eurocode family of standards. For seismic assessment the practice-oriented nonlinear N2 method was used. The results demonstrate the low seismic resistance of buildings designed for gravity loads only. On the other hand, the advantages of new standard Eurocode 8 are clearly apparent.
COBISS.SI-ID: 4643169
Predictions of energy dissipation capacity and of the deterioration of deformation capacity due to cumulative damage have been made by means of a non-parametric empirical approach, called the CAE method, using empirical data on rectangular reinforced concrete columns which failed in flexure. The longitudinal reinforcement index, the index related to confinement and the axial load index are the most influential input parameters in the case of energy capacity, whereas the latter two indices exhibit the most significant influence in the case of the drift ratio.
COBISS.SI-ID: 4394849
A systematic seismic risk study has been performed on one-storey precast industrial buildings. These buildings were designed according to the Eurocode 8. The numerical models were developed and verified by the full-scale experiments. The probabilistic analysis was used to estimate the seismic collapse risk. The effect of the uncertainty in the model parameters was investigated. The developed procedure can be used in seismic safety evaluation as well as in disaster management plans.
COBISS.SI-ID: 4725089
Observation of past earthquake events has confirmed that effectively connected flanges also directly influence the seismic performance of non rectangular sections by providing a more robust and seismically resistant structural element. To analyse significance of different influencing parameters, a series of specimens with “H”-shaped cross sections were tested. Based on further numerical investigation, the critical parameters for a test to determine the vertical shear capacity of brick masonry non-rectangular cross-sections are assessed and the governing parameters for a shear test suggested.
COBISS.SI-ID: 4786785
European standard EC8/2 for the design of bridges in earthquake prone areas introduce nonlinear analysis into the design practice. The paper presents the simplified nonlinear N2 method, which is included into this standard. It can be used for the analysis of bridges where the response is influenced by one predominat mode of vibration, which does not significantly change during the response. The method can be used for the analysis of the majority of typical bridges. However it is less effective in the case of long bridges. For these types of bridges the MPA method can be used as an alternative
COBISS.SI-ID: 4787809