Reasponse-spectra method for assessing seismic resistance of structures possibilities and prospects of usage

Author:

Benin A.V.,Zhemchugov-Gitman D.,Kurbanov Kh.,Sorokina G.V.,Uzdin A.M.

Abstract

The issues of using the response-spectra method for calculating the seismic resistance of structures are considered. The physical meaning of the coefficients included in the normative calculation formulas of the response-spectra technique is analyzed, ways of refining these coefficients are indicated. In particular, the dependence of the peak ground acceleration on the design accelerogram period is noted. The issue of obtaining the displacement spectra on the base of the normative spectral curve is considered. It is noted that with the correct setting of the normative coefficients, calculation by the response-spectra method gives more reliable values of the calculated factors. Dynamic calculating of structures over time are only needed for substantially non-linear systems and, possibly, heavily damped systems with non-uniform damping. Single calculation of the structure according to an accelerogram only disorientate the designer. The refined version of the linear spectral technique presented in the paper should be considered as the main method for assessing the seismic resistance of buildings and structures.

Publisher

EDP Sciences

Subject

General Medicine

Reference25 articles.

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2. NZS 1170.5:2004. Structural design actions. Part 5: Earthquake actions - New Zealand. Standards New Zealand. https://www.standards.govt.nz/sponsored-standards/structural-engineering/nzs-1170-5-2004/ (Last accessed 11.09.2023)

3. ASCE/SEI 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures. American Society of Civil Engineers (2016) https://www.asce.org/7-16/ (Last accessed 21.09.2023)

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5. Combination of modal responses in linear spectral method: comparison of different formulae for correlation coefficients

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