Correlation between seismic acceleration parameters and overall structural damage indices of buildings

Elenas, Anaxagoras

doi:10.1016/s0267-7261(00)00041-5

Cited by 111 publications

(57 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On one hand, in terms of hazard map representation, this is quite acceptable considering that PGA is the parameter used worldwide to define seismic design actions and, for this reason, it is familiar to the professional community. On the other hand, looking at studies and activities utilized in drawing up hazard maps, it should be considered that PGA can be a poor estimator of the damage potential of ground motion as it does not take into account earthquake duration, dominant frequency or seismic shaking energy (Elenas 2000;Masi 2003;Masi et al 2010). Thus, PGA appears to be unsuitable, and should not be used by itself to describe seismic severity and its relationship with seismic response of building structures, particularly of existing ones (Masi 2003).…”

Section: Housner Intensitymentioning

confidence: 99%

Peak and integral seismic parameters of L’Aquila 2009 ground motions: observed versus code provision values

Masi

Chiauzzi

Braga

et al. 2010

Bull Earthquake Eng

View full text Add to dashboard Cite

The M w 6.3 L'Aquila earthquake of April 6, 2009 hit a wide area of the Abruzzo region (Central Italy). The epicentre of the main shock was very close to the urban centre of L'Aquila, the regional capital, with an epicentral distance less than 10 km. It was the strongest earthquake ever recorded in Italy which has provided ground motion recordings from accelerometric stations located in close proximity to the epicentre. Because of this, several remarkable results can be achieved by analysing the strong motion recorded signals in terms of peak (PGA, PGV and PGD) and integral (Housner Intensity, I H ) seismic parameters. Additionally, an alternative time-domain representation of recorded signals has been used to furnish a rapid comparison of traces recorded at different stations and along different directions. Some comparisons between the response spectra derived from the recordings and the elastic demand spectra provided in the new seismic Italian code have also been performed. PGA recorded values are very high and generally higher than code values for seismic actions with return period T R = 475 years. In some cases, this also happens for seismic actions with T R up to 2,475 years. With regard to I H , recorded values are generally higher for T R = 475 years, whilst they are remarkably lower for T R = 2,475 years. Accurate analyses have been carried out in the article to better understand the above differences and their significance and implications.

show abstract

Section: Housner Intensitymentioning

confidence: 99%

Peak and integral seismic parameters of L’Aquila 2009 ground motions: observed versus code provision values

Masi

Chiauzzi

Braga

et al. 2010

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

“…In addition, a satisfactory number of damage indices have been used to estimate the earthquake damages in structures. Previous works prove that there is a correlation between the damage indices and the aforementioned intensity parameters [3,4].…”

Section: Introductionmentioning

confidence: 97%

A Genetic Algorithm for the Classification of Earthquake Damages in Buildings

Alvanitopoulos

Andreadis

Elenas

2009

IFIP Advances in Information and Communication Technology

View full text Add to dashboard Cite

In this paper an efficient classification system in the area of earthquake engineering is reported. The proposed method uses a set of artificial accelerograms to examine several types of damages in specific structures. With the use of seismic accelerograms, a set of twenty seismic parameters have been extracted to describe earthquakes. Previous studies based on artificial neural networks and neuro-fuzzy classification systems present satisfactory classification results in different types of earthquake damages. In this approach a genetic algorithm (GA) was used to find the optimal feature subset of the seismic parameters that minimizes the computational cost and maximizes the classification performance. Experimental results indicate that the use of the GA was able to classify the structural damages with classification rates up to 92%.

show abstract

“…Correlation between seismic parameters and structural damage has been studied mainly for RC buildings [8]. The ground motion parameters considered are the peak parameters (PGA, PGV and PGD) and the spectra parameters provided by the Fourier spectrum.…”

Section: Introductionmentioning

confidence: 99%