On the Use of Elastic Input Energy for Seismic Hazard Analysis

Chapman, Martin C.

doi:10.1193/1.1586064

Cited by 58 publications

(39 citation statements)

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“…Considering the predictive model for VE i , additionally to the DT07 equations we have selected the predictive equations proposed by Chapman (1999), in the following CH99. The CH99 regression model for estimating the VE i was established using a dataset consisting of 303 records from 23 earthquakes in western North America.…”

Section: Psha Modelmentioning

confidence: 99%

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Probabilistic seismic hazard assessment in Greece – Part 2: Acceleration response spectra and elastic input energy spectra

Tselentis

Danciu

Sokos

2010

Nat. Hazards Earth Syst. Sci.

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Abstract. This second part of the study, deals with the evaluation of the earthquake hazard in Greece in terms of the response spectral acceleration and the elastic input energy equivalent velocity. Four sets of predictive equations were selected, two for each type of spectra. Probabilistic hazard maps were created by determining the seismic hazard at grid points covering the region of interest. The maps are presented for the dominant periods of 0.2 s and 1.0 s for each spectrum. Uniform hazard response spectra (UHRS) for six cities located in the regions of highest estimated hazard are also presented. The comparison with elastic design spectra proposed by the latest national building code, has shown that the UHRS values exceed the design values at almost all periods.

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Section: Psha Modelmentioning

confidence: 99%

“…corresponding to an earthquake. Although, the current trend in earthquake-resistant design relies upon Probabilistic Seismic Hazard (PSHA), the incorporation of energy-based spectra might provide an improved means for selecting earthquake scenarios and establishing design earthquakes for many types of engineering analyses (Chapman, 1999).…”

Section: Introductionmentioning

confidence: 99%

Probabilistic seismic hazard assessment in Greece – Part 2: Acceleration response spectra and elastic input energy spectra

Tselentis

Danciu

Sokos

2010

Nat. Hazards Earth Syst. Sci.

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“…It is worthwhile to compare the pseudo-velocity response spectra obtained in this study with those obtained by Chapman [16] and Boore and Joyner [7]. All three studies used the Boore and Joyner's attenuation model [7] in Equation (6).…”

Section: Pseudo-velocitymentioning

confidence: 93%

“…Chapman [16] established attenuation relationships of the elastic input energy spectra based on a total of 304 records. The geometric mean of two horizontal components was used.…”

Section: Comparison Of Energy Spectra With Other Studiesmentioning

confidence: 99%

Establishing absorbed energy spectra?an attenuation approach

Chou

Uang

2000

Earthquake Engng. Struct. Dyn.

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SUMMARYFor energy-based seismic design, energy demand in the form of absorbed energy spectra was established by an attenuation relationship. The absorbed energy is proposed for evaluating the energy demand in an inelastic system because the absorbed energy is directly related to the pseudo-velocity in the elastic case. Based on a total of 273 ground motion records from 15 signi"cant earthquakes in California, an attenuation relationship of the absorbed energy was established from a two-stage non-linear regression analysis. This relationship was established for a given earthquake magnitude, source-to-site distance, site class, and ductility factor. A similar expression for the normalized absorbed energy was also developed. This study showed that the absorbed energy for near-"eld ground motions can be signi"cantly larger than that predicted by the attenuation relationship for normal ground motions.

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“…In fact, it is well known that a certain amount of seismic damage can be due not only by the maximum response such as force or lateral displacement, but also by inelastic excursions below the maximum response. Therefore, energy demand parameters can be considered as reliable tools to use in seismic hazard analysis, for selecting earthquake scenarios, and designing a simulated earthquake for many types of engineering analyses (CHAPMAN, 1999;CHOU and UANG, 2000;GHOSH and COLLINS, 2002;HAO 2002;HORI and INOUE, 2002;REINOSO et al, 2002;RIDDELL and GARCIA, 2002;ORDAZ et al, 2003;TRIFUNAC, 2008). Finally, using the energy concept and the energy balance equation allows one to optimize the design and detailing and to select strategies and techniques for innovative control or protective systems, such as base isolation and passive energy dissipation devices, in the earthquake-resistant design of new structures or in the seismic retrofitting of existing buildings.…”

Section: Introductionmentioning

confidence: 99%

Correlations between Energy and Displacement Demands for Performance-Based Seismic Engineering

Mollaioli

Bruno

Decanini

et al. 2010

Pure Appl. Geophys.

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Artículo de publicación ISIThe development of a scientific framework for performance-based seismic engineering requires, among other steps, the evaluation of ground motion intensity measures at a site and the characterization of their relationship with suitable engineering demand parameters (EDPs) which describe the performance of a structure. In order to be able to predict the damage resulting from earthquake ground motions in a structural system, it is first necessary to properly identify ground motion parameters that are well correlated with structural response and, in turn, with damage. Since structural damage during an earthquake ground motion may be due to excessive deformation or to cumulative cyclic damage, reliable methods for estimating displacement demands on structures are needed. Even though the seismic performance is directly related to the global and local deformations of the structure, energy-based methodologies appear more helpful in concept, as they permit a rational assessment of the energy absorption and dissipation mechanisms that can be effectively accomplished to balance the energy imparted to the structure. Moreover, energy-based parameters are directly related to cycles of response of the structure and, therefore, they can implicitly capture the effect of ground motion duration, which is ignored by conventional spectral parameters. Therefore, the identification of reliable relationships between energy and displacement demands represents a fundamental issue in both the development of more reliable seismic code provisions and the evaluation of seismic vulnerability aimed at the upgrading of existing hazardous facilities. As these two aspects could become consistently integrated within a performance-based seismic design methodology, understanding how input and dissipated energy are correlated with displacement demands emerges as a decisive prerequisite. The aim of the present study is the establishment of functional relationships between input and dissipated energy (that can be considered as parameters representative of the amplitude, frequency content and duration of earthquake ground motions) and displacement-based response measures that are well correlated to structural and non-structural damage. For the purpose of quantifying the EDPs to be related to the energy measures, for comprehensive range of ground motion and structural characteristics, both simplified and more accurate numerical models will be used in this study for the estimation of local and global displacement and energy demands. Parametric linear and nonlinear time-history analyses will be performed on elastic and inelastic SDOF and MDOF systems, in order to assume information on the seismic response of a wide range of current structures. Hysteretic models typical of frame force/displacement behavior will be assumed for the local inelastic cyclic response of the systems. A wide range of vibration periods will be taken into account so as to define displacement, interstory drift and energy spectra for MDOF systems. Various scal...

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On the Use of Elastic Input Energy for Seismic Hazard Analysis

Cited by 58 publications

References 0 publications

Probabilistic seismic hazard assessment in Greece – Part 2: Acceleration response spectra and elastic input energy spectra

Probabilistic seismic hazard assessment in Greece – Part 2: Acceleration response spectra and elastic input energy spectra

Establishing absorbed energy spectra?an attenuation approach

Correlations between Energy and Displacement Demands for Performance-Based Seismic Engineering

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