engleski

NONLINEAR ANALYSIS OF BUILDING STRUCTURES IN SEISMIC AREAS ACCORDING TO THE EUROPEAN STANDARDS, CASE STUDY

For the design and construction of buildings in seismic areas the European Standard EN 1998-1: 2004 offers two non-linear methods, namely: a non-linear pushover-based static method and a non-linear dynamic method. This paper discusses those methods which differ from one another in respect to accuracy, simplicity, transparency and clarity of theoretical background. Non- linear static procedures were developed in the world with the aim of overcoming the insufficiency and limitations of linear methods, whilst at the same time maintaining a relatively simple application. All procedures incorporate performance-based concepts paying more attention to damage control. Application of the presented procedures is illustrated by means of an example of an eight-storey reinforced concrete frame building. The results obtained by non-linear static procedure and non-linear dynamic time- history analysis are compared. It is concluded that non-linear static procedure is sustainable for application.

nonlinear static analysis, pushover, nonlinear dynamic time-history analysis, European standard EN 1998-1: 2004, seismic demand, seismic capacity, artificial records, records of real earthquakes

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