Seismic site-response variability : from site-classification to soil non-linear behaviour
type: Distribution
access URL: https://theses.hal.science/tel-00906072
format: HTML
issued: 2026-05-08T04:51:52.270214
modified: 2026-05-08T04:51:52.252894

test_moissonnage_selune
type: Agent

Seismic site-response variability : from site-classification to soil non-linear behaviour
type: Dataset
contact point: Organization
  fn: CCSD
keyword: theses
keyword: sdustusciences-of-the-universe-physicsearth-sciences
keyword: variabilite
keyword: variability
keyword: infoeu-reposemanticsdoctoralthesis
keyword: comportement-non-lineaire-du-sol
keyword: site-effects
keyword: effet-de-site
keyword: nonlinear-soil-behavior
landing page: https://theses.hal.science/tel-00906072
description: Local geology can strongly affect seismic ground motion at the surface. These so-called site-effects can be evaluated either numerically by simulating the seismic wave propagation or empirically using earthquake recordings analyses or statistical correlations between site parameters and site effects. This thesis concerns the improvement of site effect evaluation and the consideration of the seismic site response variability. This work is mainly based on the analysis of earthquake recordings. First, we analyzed the site response variability between sites for similar ground motion incident intensity (weak motion) and then, we analysed the site response variability between events in one site caused by non-linear soil behaviour. Finally, we used inversion method to find the depths where soil non-linear behaviour mostly occurs.We analyzed various earthquake recordings from the KiK-net database in Japan (more than 46 000), which is composed of more than 688 surface/borehole instruments. The vertical array configuration allows the computation of the empirical site response in borehole condition. This database was chosen because of its large amount of instrumented sites located at sediments, its large amount of accelerometric data and the existence of characterisation of the shear and compressive wave velocity profiles down to the borehole depth. The analysis of the seismic response variability per site classes indicated which parameters must be measured to improve the site-effect assessment. In the linear range, the parameters are the Vs profile gradient calculated until 30 m (B30) or 100 m depth (B100) and the fundamental resonance frequency of the site (f0). These additional parameters to Vs30 can be used to reduce the between-sites surface motion variability (such as in GMPEs, Ground Motion Prediction Equations).Besides, the analysis of inter-event site response variability caused by non-linear soil behaviour showed the relevant parameters for analysis of site effects i…
identifier: NNT: 2013PEST1037
issued: 2026-05-08T04:51:52.266609
language: en
modified: 2026-05-08T04:51:52.266613