Simulation of earthquake ground motions by a deterministic approach

Karabalis, Dimitris L.; Cokkinides, G.J.; Rizos, Dimitris; Mulliken, J.S.

doi:10.1016/s0965-9978(99)00057-5

Cited by 18 publications

(8 citation statements)

References 7 publications

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“…From a deterministic viewpoint, Karabalis et al [12] incorporated certain numerical schemes to appropriately modify individual recorded accelerograms so that their response spectra are in close agreement with a given design spectrum. Mukherjee and Gupta [13] and Hancock et al [14] employed wavelet-based methods in the frequency and in the time domain, respectively, for the same purpose.…”

Section: Introductionmentioning

confidence: 99%

Wavelet-based response spectrum compatible synthesis of accelerograms—Eurocode application (EC8)

Giaralis

Spanos

2009

Soil Dynamics and Earthquake Engineering

128

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractAn integrated approach for addressing the problem of synthesizing artificial seismic accelerograms compatible with a given displacement design/target spectrum is presented in conjunction with aseismic design applications. Initially, a stochastic dynamics solution is used to obtain a family of simulated non-stationary earthquake records whose response spectrum is on the average in good agreement with the target spectrum. The degree of the agreement depends significantly on the adoption of an appropriate parametric evolutionary power spectral form which is related to the target spectrum in an approximate manner. The performance of two commonly-used spectral forms along with a newly proposed one is assessed with respect to the elastic displacement design spectrum defined by the European code regulations (EC8). Subsequently, the computational versatility of the family of harmonic wavelets is employed to modify iteratively the simulated records to satisfy the compatibility criteria for artificial accelerograms prescribed by EC8. In the process, baseline correction steps, ordinarily taken to ensure that the obtained accelerograms are characterized by physically meaningful velocity and displacement traces, are elucidated. Obviously, the presented approach can be used not only in the case of the EC8, for which extensive numerical results/ examples are included, but also for any code provisions mandated by regulatory agencies. In any case, the presented numerical results can be quite useful in any aseismic design process dominated by the EC8 specifications.

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Section: Introductionmentioning

confidence: 99%

Wavelet-based response spectrum compatible synthesis of accelerograms—Eurocode application (EC8)

Giaralis

Spanos

2009

Soil Dynamics and Earthquake Engineering

128

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“…Table 3 shows the ground motions used in this paper, while figure 12 presents the response spectrum of the ground motions, which were scaled in order to match the response spectrum of EC8 for a 10% probability of exceedance in 50 years. The scaling process was based on method of Fahjan [22] and Karabalis [23]. The scope of this method is the response spectrum of the time history to gradually match the response spectrum of EC8 for a range of periods 0.2T 1 -2T 1 (where T 1 is the natural period of the building), by increasing some components of the spectrum index, and reducing some others.…”

Section: Scaling Ground Motionsmentioning

confidence: 99%

Application of Elastomeric Dampers to Steel Moment Resisting Frames

Basagiannis¹,

Williams²

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. In this paper the hysteretic behaviour of elastomeric dampers and their effect on steel moment resisting frames was evaluated. A new constitutive model was proposed, based on the Generalized Maxwell Model (GMM), which was able to capture the characteristics of the dampers under dynamic loading in a range of frequencies and amplitudes. This model was incorporated into the Finite Element (FE) Software OpenSees [1], and was used to validate the dampers behaviour. A simple steel moment resisting frame was modelled, and analytically tested under under strong ground motions, scaled according to Eurocode 8 [2] response spectrum. Both analytical and experimental results show the efficiency and the effectiveness of the elastomeric dampers with regard to structural response.

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“…The seismic record chosen is an artificial accelerogram compatible with the design spectrum of Eurocode 8 for soil category C and damping 5%, with PGA=0.4g and duration 20sec. The fitting of the artificial accelerogram to the target spectrum is made via the iterative procedure introduced in [6]. A 6% of critical damping is assumed for the concrete structure.…”

Section: Seismic Response Of Water Tower At Santa Maria Novella Stationmentioning

confidence: 99%

Seismic Analysis of a Historic Water Tower: A Fluid-Structure-Soil Interaction Problem

Zanni¹,

Spyridis²,

Karabalis³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Simulation of earthquake ground motions by a deterministic approach

Cited by 18 publications

References 7 publications

Wavelet-based response spectrum compatible synthesis of accelerograms—Eurocode application (EC8)

Wavelet-based response spectrum compatible synthesis of accelerograms—Eurocode application (EC8)

Application of Elastomeric Dampers to Steel Moment Resisting Frames

Seismic Analysis of a Historic Water Tower: A Fluid-Structure-Soil Interaction Problem

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