Quantifying the effect of amplitude scaling of real ground motions based on structural responses of vertically irregular and regular RC frames
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Increasing number of real ground motion (GM) record databases raised nonlinear dynamic analysis (NDA) as an attractive option to determine structural response statistics. Structural responses are sensitive to input motions and the appropriate selection and scaling of real GMs is one of the crucial topics in earthquake engineering. In this paper, the influence of amplitude scaling on important earthquake demand parameters (EDPs), namely, global drift ratio, inter-story drift ratio and maximum floor acceleration, were studied using different scaling approaches and scaling limits. Eurocode-8 was used as a reference seismic code and amplitude scaling effects on structural responses of vertically irregular and regular structures were quantified. Efficiency and sufficiency of amplitude scaling were assessed in terms of mean, dispersion and non-exceedance probability curves of the EDPs. Statistical distribution of GM characteristics and their dependence on GM amplitude scaling were also discussed. Evaluations have shown that similar mean responses can be obtained regardless of scaling limits, approaches, and building topology if spectral shape compatibility is ensured. Furthermore, results demonstrated that neither building regularity nor scaling of GMs influenced the statistical distribution of ground motion parameters and non-exceedance probability curves of the EDPs. In fact, it was revealed that record selection scenario including spectral compatibility of individual GMs had a dramatic impact on dispersion and exceedance probability of structural responses.
Açıklama
Anahtar Kelimeler
Scaling Factor, Seismic Codes, Real Ground Motion Selection, Ground Motion Parameters, Dynamic Analysis, Prediction Equations
Kaynak
Structures
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
51
Sayı
Künye
Palanci, M., Demir, A., & Kayhan, A. H. (2023, May). Quantifying the effect of amplitude scaling of real ground motions based on structural responses of vertically irregular and regular RC frames. In Structures (Vol. 51, pp. 105-123). Elsevier.
