Search results for "Spectrum-compatible"

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Comparison of fully non-stationary artificial accelerogram generation methods in reproducing seismicity at a given site

2020

Abstract Seismic input modelling is a crucial step when Non-Linear Time-History Analyses (NLTHAs) are performed, the seismic response of structures being highly responsive to the input employed. When natural accelerograms able to represent local seismicity are not available, the use of generated accelerograms is an efficient solution for input modelling. The aim of the present paper is to compare four methods for generating fully non-stationary artificial accelerograms on the basis of a target spectrum, identified using seven recorded accelerograms registered in the neighbourhood of the construction site during a single event, assumed as target accelerograms. For each method, seven accelero…

0211 other engineering and technologiesSoil Science020101 civil engineeringSpectrum-compatible02 engineering and technologyInduced seismicity0201 civil engineeringSet (abstract data type)Intensity measure parametermedicinePoint (geometry)Seismic site characteristic021101 geological & geomatics engineeringCivil and Structural EngineeringEvent (probability theory)Basis (linear algebra)business.industryFully non-stationaryStiffnessStructural engineeringGeotechnical Engineering and Engineering GeologySettore ICAR/09 - Tecnica Delle CostruzioniArtificial accelerogrammedicine.symptombusinessEnergy (signal processing)GeologySoil Dynamics and Earthquake Engineering
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Comparison of approaches for generation of fully non-stationary artificial accelerograms

2019

The modelling of the seismic input is a critical aspect when non-linear time-history analyses (NLTHAs) are carried out. As a matter of fact, seismic response of structures is very sensitive to the input excitation time history. The present work aims to highlight the differences in the input modelling and the assessment of seismic response of three r.c. structures employing four generation methods of fully non-stationary artificial accelerogram sets at a given construction site. For each method, seven accelerograms are generated and employed to perform NLTHAs on three r.c. structures having irregular mass and stiffness distributions. The original contribution of the paper relies in the crite…

Artificial accelerograms Fully non-stationary random processes Spectrum-compatible RC structuresSettore ICAR/09 - Tecnica Delle Costruzioni
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