### 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.

Keywords:

- убытки от разрушения зданий при землетрясениях
- линейно-спектральный метод
- табл. 4 СП 14.13330
- коэффициент допускаемых повреждений K1
- коэффициент редукции сейсмических сил R
- кривая несущей способности
- метод нелинейного статического анализа
- SAP2000
- losses due to building damage during earthquakes
- response spectrum method
- table no.4 of Seismic Building Design Code SP 14.13330
- seismic-force-reduction factor K1 (in SP 14.13330 formulation)
- response-modification coefficient R
- Pushover curve
- nonlinear static (Pushover) analysis
- SAP2000