Electronic Resource
Efficient estimation of the peak factor for the stochastic characterization of structural response to non-stationary ground motions
| العنوان: | Efficient estimation of the peak factor for the stochastic characterization of structural response to non-stationary ground motions |
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| المؤلفون: | Universitat Politècnica de València. Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras - Departament de Mecànica dels Medis Continus i Teoria d'Estructures, Ferrer Ballester, Ignacio, Sánchez Carratalá, Carlos Rafael |
| بيانات النشر: | Elsevier Hispana 2016 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | [EN] The determination of the peak factor is quite cumbersome in the case of a non-stationary process, due to the necessity of calculating the non-geometric spectral moments of the process and obtaining the threshold level of the first-passage problem corresponding to a certain non-exceedance probability value. In this paper, an efficient approximate new method is presented for practical applications in Earthquake Engineering. The so-called Equivalent Oscillator and Response method consists of transforming the original oscillator excited by a uniformly modulated non-stationary colored noise into an equivalent oscillator excited by a uniformly modulated non-stationary white noise, in such a way that the responses of both oscillators have similar values for the spectral parameters that affect the calculation of the peak factor. A new dimensionless spectral peakedness factor is introduced in order to ensure the matching of the spectral bandwidth of both oscillators. A numerical application of the new method, based on a nonstationary seismological model for the ground accelerations process, is carried out, showing the reliability and robustness of the new method for efficiently and accurately estimating the peak factor of the nonstationary structural response. |
| مصطلحات الفهرس: | Non-stationary stochastic processes, Peak factor, Spectral peakedness factor, Performance-based design, Seismological models, Equivalent stationary duration, FISICA APLICADA, MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS, info:eu-repo/semantics/article |
| URL: | |
| الاتاحة: | Open access content. Open access content http://rightsstatements.org/vocab/InC/1.0 info:eu-repo/semantics/closedAccess |
| ملاحظة: | TEXT English |
| Other Numbers: | UPV oai:riunet.upv.es:10251/104747 urn:issn:0167-4730 info:doi:10.1016/j.strusafe.2015.11.004 1138227506 |
| المصدر المساهم: | UNIVERSITAT POLITECNICA DE VALENCIA From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1138227506 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |