||Matej FISCHINGER // 1.01 Izvirni znanstveni članek
Peter FAJFAR // 1.01 Izvirni znanstveni članek
||FAJFAR, Peter, JIANG, Yi, FISCHINGER, Matej.
Comparison of modal analysis and equivalent lateral force procedutre for seismic
analysis of buildings. European earthquake engineering, 1988, vol. 2, no.
2, str. 3-14, graf. prikazi.
||In the codes the Equivalent Lateral Force
Procedure (ELF) and/or the Modal Analysis Procedure (MA) are used for the
seismic analysis of buildings. The two procedures yield different results even
if the same seismic coefficient is used in both cases. The difference depends on
the characteristics of the structure and on the shape of the design spectrum.
For the typical design spectra used in the codes, the base shear obtained by ELF
may be more than 50% greater for regular symmetric buildings and more than 100%
greater for regular non-symmetric buildings with a uniform distribution of
stiffness and mass along their building. The difference may even be much larger
in the case of irregular buildings. Important discrepancies can be observed also
in over-turning moments an in distribution of loading to different sctural
elements. In the paper the inconsistency of the results obtained by both methods
is presented in a systematic way [COBISS.SI-ID 1037921]
||1.01 Izvirni znanstveni članek
||1037921 Polni zapis iz sistema COBISS
Vpisal 2009/06/10 11:56