Review article

About refinement of the seismic-force-reduction factor (K1) and its coherence with the concept of seismic response modification in formulation of the spectrum method (in order of discussion)

UDC: 

699.841:624.042.7

Pages: 

92-114

Annotation: 

A relationship between R-factor used in the world design earthquake engineering practice and seismic-force-reduction factor K 1 which is used in Response Spectrum Technique of updated editions of the Seismic Building Design Code II-7-81 was analyzed by the author. It is noted that the table no.4 and equation (1) of the Seismic Building Design Code SP 14.13330.2014 give for K 1 two-valued semantic character which can be understood by engineers on two ways. An approach for K 1-factor refinement (in SP 14.13330 formulation) of large-scale construction (LSC) using Pushover curve is suggested. Importance of K 1 choosing with into account of RC shear walls capability to dissipate of earthquake energy is pointed out by the author.

Authors: 

Sosnin A. V. Moscow State University of Railway Engineering, Smolensk Branch

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