By Michele Maugeri, Claudio Soccodato

ISBN-10: 3319031813

ISBN-13: 9783319031811

ISBN-10: 3319031821

ISBN-13: 9783319031828

Pseudo-static research continues to be the most-used technique to verify the soundness of geotechnical platforms which are uncovered to earthquake forces. notwithstanding, this system doesn't supply any information regarding the deformations and everlasting displacements triggered via seismic task. in addition, it's questionable to take advantage of this technique while geotechnical platforms are laid low with common and infrequent seismic occasions. by the way, the height floor acceleration has elevated from 0.2-0.3 g within the seventies to the present worth of 0.6-0.8 g. for this reason, a shift from the pseudo-static method of performance-based research is needed.

Over the prior 5 years significant development has been made in Earthquake Geotechnical Engineering layout (EGED). the latest advances are provided during this e-book in 6 parts.

The review of the location amplification is roofed partially I of the publication. partially II the overview of the soil origin balance opposed to typical slope failure and liquefaction is handled. within the following three elements of the publication the EGED for various geotechnical platforms is gifted as follows: the layout of levees and dams together with ordinary slopes partially III; the layout of foundations and soil constitution interplay research partly IV; underground buildings partly V. eventually partially VI, new themes just like the layout of bolstered earth maintaining partitions and landfills are covered.

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Extra info for Earthquake Geotechnical Engineering Design

Sample text

The horizontal components of seismic action for each site category depends on PGA value, where the four controlling period values are fixed for each type of earthquake design scenario (Type I and Type II) devolved to the National Annexes. In addition, in EC8 (CEN 2004) the elastic response spectra for vertical seismic motion, as well as the displacement spectra are defined. The vertical spectrum depends on horizontal peak acceleration value and the effect of source to site distance is not included.

This technique was introduced by Nakamura (1989) to analyze ambient seismic noise records, and was later applied by Lermo and Cha´vez-Garcı´a (1993) to earthquake ground motion. HVSR was applied only to stations with at least 3 ground motion records (81 stations) to estimate the resonant frequency of each station. The depth of “seismic” bedrock was then estimated, assuming a constant shear wave velocity from bottom of Vs model until the “seismic” bedrock. HVSR technique was also applied to 20 Italian sites.

96-0255 1996–1999) through a combined geological, geotechnical and geophysical surveys, as well as, empirical and theoretical studies of site effects based on high quality data of many weak and moderate earthquakes, (Pitilakis et al. 1999; Raptakis et al. 1998, 2000, 2005; Cha´vez-Garcı´a et al. 2000; Makra et al. 2005; Makra and Raptakis 2008; Manakou et al. 2010) (Fig. 4). The variation of Vs of the upper 30 m obtained from crosshole and downhole (CH, DH), wave inversion (SWI), P and SH refraction (REF) and analyses of weak to moderate recordings from the DH array at TST site at the center of the valley with regard to the mean Vs of the reference model of the valley, is depicted in Fig.

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Earthquake Geotechnical Engineering Design by Michele Maugeri, Claudio Soccodato

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