Publications
267 results found
Moharram AM, Elghazouli AY, Bommer JJ, 2008, A framework for a seismic risk model for Greater Cairo, SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, Vol: 28, Pages: 795-811, ISSN: 0267-7261
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- Citations: 8
Edwards B, Rietbrock A, Bommer JJ, et al., 2008, The acquisition of source, path, and site effects from microearthquake recordings using <i>Q</i> tomography:: Application to the United Kingdom, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 98, Pages: 1915-1935, ISSN: 0037-1106
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- Citations: 78
Moharram AM, Elghazouli AY, Bommer JJ, 2008, Scenario-based earthquake loss estimation for the city of Cairo, Egypt, Georisk, Vol: 2, Pages: 92-112, ISSN: 1749-9518
Strasser FO, Bommer JJ, Abrahamson NA, 2008, Truncation of the distribution of ground-motion residuals, JOURNAL OF SEISMOLOGY, Vol: 12, Pages: 79-105, ISSN: 1383-4649
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- Citations: 43
Stafford PJ, Mendis R, Bommer JJ, 2008, The dependence of damping correction factors for response spectra on duration and numbers of cycles, Journal of Structural Engineering - ASCE, Vol: 134, Pages: 1364-1373, ISSN: 0733-9445
Crowley H, Stafford PJ, Bommer JJ, 2008, Can earthquake loss models be validated using field observations?, Journal of Earthquake Engineering, Vol: 12, Pages: 1078-1104
Crowley H, Bommer JJ, Stafford PJ, 2008, Recent developments in the treatment of ground-motion variability in earthquake loss models, Journal of Earthquake Engineering, Vol: 12, Pages: 71-80, ISSN: 1363-2469
Strasser FO, Bommer JJ, Sesetyan K, et al., 2008, A comparative study of European earthquake loss estimation tools for a scenario in Istanbul, 2nd International Symposium on Earthquake Loss Estimation for Turkey, Publisher: TAYLOR & FRANCIS LTD, Pages: 246-256, ISSN: 1363-2469
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- Citations: 38
Hancock J, Bommer JJ, Stafford PJ, 2008, Numbers of scaled and matched accelerograms required for inelastic dynamic analyses, Earthquake Engineering and Structural Dynamics, Vol: 37, Pages: 1585-1607, ISSN: 0098-8847
Stafford PJ, Strasser FO, Bommer JJ, 2008, An evaluation of the applicability of the NGA models to ground-motion prediction in the Euro-Mediterranean region, Bulletin of Earthquake Engineering, Vol: 6, Pages: 149-177, ISSN: 1570-761X
The first phase of the Next Generation Attenuation (NGA) project has now finished, resulting in the publication of five new sets of empirical ground-motion models for PGA, PGV and response spectral ordinates. These models mark a significant advancement in the state-of-the-art in empirical ground-motion modelling and include many effects that are not accounted for in existing European equations. Under the assumption that the Euro-Mediterranean database from which the European relationships are derived is unlikely to drastically change in the near future, a prudent question to ask is: can the NGA models be applied in Europe? In order to answer this question, the NGA model of Boore and Atkinson (PEER Report 2007/01, Pacific Earthquake Engineering Research Center, Berkeley, CA, 234 pp., 2007), which is shown to be representative of the NGA models as a suite, is compared with the dataset used for the development of the most recent European empirical ground-motion models for response spectral ordinates and peak ground velocity. The comparisons are made using analyses of model residuals and the likelihood approach of Scherbaum et al. (Bull Seism Soc Am 94(6):2164–2185, 2004). The analyses indicate that for most engineering applications, and particularly for displacement-based approaches to seismic design, the NGA models may confidently be applied within Europe. Furthermore, it is recommended that they be used in conjunction with existing European models to provide constraint on finite-fault effects and non-linear site response within logic-tree frameworks. The findings also point to the potential benefits of merging the NGA and European datasets.
Sargeant SL, Stafford PJ, Lawley R, et al., 2008, Observations from the Folkestone, U.K., earthquake of 28 April 2007, Seismological Research Letters, Vol: 79, Pages: 672-687
Bommer JJ, Abrahamson NA, 2007, Reply to "Comment on 'Why Do Modem Probabilistic Seismic-Hazard Analyses Often Lead to Increased Hazard Estimates?' by Julian J. Bommer and Norman A. Abrahamson" by Zhenming Wang and Mai Zhou, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 97, Pages: 2215-2217, ISSN: 0037-1106
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- Citations: 4
Bommer JJ, Abrahamson NA, 2007, Reply to "Comment on 'Why Do Modem Probabilistic Seismic-Hazard Analyses Often Lead to Increased Hazard Estimates?' by Julian J. Bommer and Norman A. Abrahamson" by Jens-Uwe Klugel, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 97, Pages: 2208-2211, ISSN: 0037-1106
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- Citations: 3
Beyer K, Bornmer JJ, 2007, Relationships between median values and between aleatory variabilities for different definitions of the horizontal component of motion, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 97, Pages: 1769-1769, ISSN: 0037-1106
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- Citations: 23
Akkar S, Bommer JJ, 2007, Prediction of elastic displacement response spectra in Europe and the Middle East, EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, Vol: 36, Pages: 1275-1301, ISSN: 0098-8847
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- Citations: 131
Majer EL, Baria R, Stark M, et al., 2007, Induced seismicity associated with enhanced geothermal systems, GEOTHERMICS, Vol: 36, Pages: 185-222, ISSN: 0375-6505
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- Citations: 447
Grant DN, Bommer JJ, Pinho R, et al., 2007, A prioritization scheme for seismic intervention in school buildings in Italy, EARTHQUAKE SPECTRA, Vol: 23, Pages: 291-314, ISSN: 8755-2930
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- Citations: 69
Akkar S, Bommer JJ, 2007, Empirical prediction equations for peak ground velocity derived from strong-motion records from Europe and the Middle East, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 97, Pages: 511-530, ISSN: 0037-1106
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- Citations: 144
Hancock J, Bommer JJ, 2007, Using spectral matched records to explore the influence of strong-motion duration on inelastic structural response, SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, Vol: 27, Pages: 291-299, ISSN: 0267-7261
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- Citations: 133
Hollingsworth J, Jackson J, Alarcon JE, et al., 2007, The 4th February 1997 Bojnurd (Garmkhan) earthquake in NE Iran:: Field, teleseismic, and strong-motion evidence for rupture directivity effects on a strike-slip fault, JOURNAL OF EARTHQUAKE ENGINEERING, Vol: 11, Pages: 193-214, ISSN: 1363-2469
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- Citations: 16
Beyer K, Bommer JJ, 2007, Selection and Scaling of Real Accelerograms for Bi-Directional Loading: A Review of Current Practice and Code Provisions, JOURNAL OF EARTHQUAKE ENGINEERING, Vol: 11, Pages: 13-45, ISSN: 1363-2469
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- Citations: 135
Bommer JJ, Stafford PJ, Alarcon JE, et al., 2007, The influence of magnitude range on empirical ground-motion prediction., Bulletin of the Seismological Society of America, Vol: 97
Lopez-Querol S, Coop MR, Bommer JJ, et al., 2007, Back-analysis of liquefaction in the 2006 Mozambique earthquake, Georisk: assessment and management of risk for engineered systems and geohazards, Vol: 1, Pages: 89-101
A magnitude 7 earthquake occurred in southwest Mozambique in February 2006,triggering extensive liquefaction around the fault rupture. Samples were recovered fromthe liquefied soils for laboratory testing to calibrate a numerical model for the assessmentof liquefaction susceptibility. Laboratory tests and simulations confirm that the alluvialsands from the area affected by the earthquake have a very high susceptibility toliquefaction, although this depends strongly on the in situ density, which is likely to be lowsince the soils are deposited in a major flood plain. Since many areas of Mozambique,including parts of the major coastal cities, are on similarly loose and saturated deposits,there could be a significant liquefaction hazard in future earthquakes.
Mendis R, Bommer JJ, 2006, Constructing over-damped displacement spectra for seismic design codes, Pages: 1997-2006
Displacement response spectra for damping ratios significantly higher than the nominal 5% of critical, specified in most seismic design codes, are required for the design of base-isolated structures and structures with supplementary damping devices, as well as for performance-based design approaches that use equivalent linearization. The spectra for higher damping values are generally obtained by applying scaling factors to the 5%-damped ordinates and are normally defined as functions of the damping level and sometimes also the response period. There is great variation in the scaling factors presented in current design codes and is interpreted as being due to the different characteristics of the ground motions used to derive them, since the scaling of the 5%-damped ordinates for higher damping levels display a marked dependence on strong-motion duration. Duration-dependent scaling factors for higher damping levels are derived using an extensive strong-motion dataset. Copyright © (2006) by Earthquake Engineering Research Institute.
Bommer JJ, Abrahamson NA, 2006, Why do modem probabilistic seismic-hazard analyses often lead to increased hazard estimates?, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 96, Pages: 1967-1977, ISSN: 0037-1106
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- Citations: 260
Calvi GM, Pinho R, Magenes G, et al., 2006, Development of seismic vulnerability assessment methodologies over the past 30 years, ISET Journal of Earthquake Technology, Vol: 43, Pages: 75-104, ISSN: 0972-0405
Models capable of estimating losses in future earthquakes are of fundamental importance for emergency planners and for the insurance and reinsurance industries. One of the main ingredients in a loss model is an accurate, transparent and conceptually sound algorithm to assess the seismic vulnerability of the building stock and indeed many tools and methodologies have been proposed over the past 30 years for this purpose. This paper takes a look at some of the most significant contributions in the field of vulnerability assessment and identifies the key advantages and disadvantages of these procedures in order to distinguish the main characteristics of an ideal methodology.
Crowley H, Bommer JJ, 2006, Erratum: Modelling seismic hazard in earthquake loss models with spatially distributed exposure (Bulletin of Earthquake Engineering), Bulletin of Earthquake Engineering, Vol: 4, ISSN: 1570-761X
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- Citations: 2
Crowley H, Bommer JJ, 2006, Modelling seismic hazard in earthquake loss models with spatially distributed exposure, BULLETIN OF EARTHQUAKE ENGINEERING, Vol: 4, Pages: 249-273, ISSN: 1570-761X
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- Citations: 124
Hancock J, Bommer JJ, 2006, A state-of-knowledge review of the influence of strong-motion duration on structural damage, EARTHQUAKE SPECTRA, Vol: 22, Pages: 827-845, ISSN: 8755-2930
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- Citations: 184
Bommer JJ, Crowley H, 2006, The influence of ground-motion variability in earthquake loss modelling, BULLETIN OF EARTHQUAKE ENGINEERING, Vol: 4, Pages: 231-248, ISSN: 1570-761X
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- Citations: 70
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