Author(s): M. Danieli, J. Bloch & I. Halperin
This work presents numerical methods of calculation of earthquake resistance of
shells of revolution based on the application of the theory of random processes
combined with the FEM.
Probabilistic character of seismic effect is determined
by using artificial accelerograms based on stochastic process.
To illustrate the
above methods of probabilistic analysis of seismic stability of structures, two
real objects and one projected one are considered.
Displacements, stresses, forces
and moments resulting from the action of seismic load have been determined.
Comparison of the results of calculation with those achieved using calculation of
prescribed real accelerograms and building design codes have been made.
Comparative analysis of the calculation results brings us to the conclusion that
the difference between the results obtained using different methods can be quite
It means that when designing structures of the types of shells of
revolution under consideration it is necessary to do calculations using all
methods recommended by design codes as well as probabilistic methods.
earthquake resistance, shell, revolution, FEM, probabilistic analysis.
According to the existing building design codes (IS 413 , Eurocode 8 ,
UBC-1994 , etc.), the basic method for earthquake resistance analysis is the
modal response spectrum analysis (Lindeburg , Chopra , etc).
this method, the dynamic character of seismic effect is taken into account by
means of various factors.
Besides, in order to determine the response of building
structures, it is recommended, for example, that calculations be done for
recorded real, synthesized or simulated accelerograms (time history) geologic
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Paper DOI: 10.2495/ERES110211
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