Imperial College London
Alternate

Professor Julian J Bommer

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Research Investigator
 
 
 
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Contact

 

+44 (0)20 7594 5984j.bommer Website CV

 
 
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Location

 

Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Stafford:2017:10.1785/0120170084,
author = {Stafford, PJ and Rodriguez-Marek, A and Edwards, B and Kruiver, PP and Bommer, JJ},
doi = {10.1785/0120170084},
journal = {Bulletin of the Seismological Society of America},
pages = {2859--2872},
title = {Scenario dependence of linear site-effect factors for short-period response spectral ordinates},
url = {http://dx.doi.org/10.1785/0120170084},
volume = {107},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Groundmotion models for response spectral ordinates commonly partition siteresponse effects into linear and nonlinear components. The nonlinear components depend upon the earthquake scenario being considered implicitly through the use of the expected level of excitation at some reference horizon. The linear components are always assumed to be independent of the earthquake scenario. This article presents empirical and numerical evidence as well as a theoretical explanation for why the linear component of site response depends upon the magnitude and distance of the earthquake scenario. Although the impact is most pronounced for smallmagnitude scenarios, the finding has significant implications for a number of applications of more general interest including the development of siteresponse terms within groundmotion models, the estimation of groundmotion variability components  S2SS2S  and  SSSS , the construction of partially nonergodic models for sitespecific hazard assessments, and the validity of the convolution approach for computing surface hazard curves from those at a reference horizon, among others. All of these implications are discussed in the present article.
AU  - Stafford,PJ
AU  - Rodriguez-Marek,A
AU  - Edwards,B
AU  - Kruiver,PP
AU  - Bommer,JJ
DO  - 10.1785/0120170084
EP  - 2872
PY  - 2017///
SN  - 0037-1106
SP  - 2859
TI  - Scenario dependence of linear site-effect factors for short-period response spectral ordinates
T2  - Bulletin of the Seismological Society of America
UR  - http://dx.doi.org/10.1785/0120170084
UR  - https://pubs.geoscienceworld.org/ssa/bssa/article-abstract/107/6/2859/519567/Scenario-Dependence-of-Linear-Site-Effect-Factors
UR  - http://hdl.handle.net/10044/1/50385
VL  - 107
ER  -
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