Search Results - "Bommer, Julian J."

The use and misuse of logic trees in probabilistic seismic hazard analysis by Bommer, Julian J, Scherbaum, Frank

“…Logic trees have become a standard feature of probabilistic seismic hazard analyses (PSHA) for determining design ground motions. A logic tree's purpose is to…”
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Prediction of elastic displacement response spectra in Europe and the Middle East by Akkar, Sinan, Bommer, Julian J.

“…Empirical equations are presented for the prediction of displacement response ordinates for damping ratios of 2, 5, 10, 20 and 30% of critical and for response…”
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A state-of-knowledge review of the influence of strong-motion duration on structural damage by Hancock, Jonathan, Bommer, Julian J

“…The important role played by the duration of ground shaking in the response of saturated soil deposits is universally acknowledged, but no such consensus…”
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Processing of strong-motion accelerograms: needs, options and consequences by Boore, David M., Bommer, Julian J.

“…Recordings from strong-motion accelerographs are of fundamental importance in earthquake engineering, forming the basis for all characterizations of ground…”
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AN IMPROVED METHOD OF MATCHING RESPONSE SPECTRA OF RECORDED EARTHQUAKE GROUND MOTION USING WAVELETS by HANCOCK, JONATHAN, WATSON-LAMPREY, JENNIE, ABRAHAMSON, NORMAN A., BOMMER, JULIAN J., MARKATIS, ALEXANDROS, McCOYH, EMMA, MENDIS, RISHMILA

“…Dynamic nonlinear analysis of structures requires the seismic input to be defined in the form of acceleration time-series, and these will generally be required…”
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THE USE OF REAL EARTHQUAKE ACCELEROGRAMS AS INPUT TO DYNAMIC ANALYSIS by BOMMER, JULIAN J., ACEVEDO, ANA BEATRIZ

“…The increasing availability of strong-motion accelerograms, and the relative ease with which they can be obtained compared to synthetic or artificial records,…”
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Earthquake hazard and risk analysis for natural and induced seismicity: towards objective assessments in the face of uncertainty by Bommer, Julian J.

“…The fundamental objective of earthquake engineering is to protect lives and livelihoods through the reduction of seismic risk. Directly or indirectly, this…”
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Control of hazard due to seismicity induced by a hot fractured rock geothermal project by Bommer, Julian J., Oates, Stephen, Cepeda, José Mauricio, Lindholm, Conrad, Bird, Juliet, Torres, Rodolfo, Marroquín, Griselda, Rivas, José

“…In 2003 hydraulic stimulations were carried out in a geothermal field in eastern El Salvador, Central America, as part of a project to explore the feasibility…”
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Challenges of building logic trees for probabilistic seismic hazard analysis by Bommer, Julian J

“…In the current practice of probabilistic seismic hazard analysis (PSHA), logic trees are widely used to represent and capture epistemic uncertainty in each…”
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A risk-mitigation approach to the management of induced seismicity by Bommer, Julian J., Crowley, Helen, Pinho, Rui

“…Earthquakes may be induced by a wide range of anthropogenic activities such as mining, fluid injection and extraction, and hydraulic fracturing. In recent…”
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The effective number of cycles of earthquake ground motion by Hancock, Jonathan, Bommer, Julian J.

“…The seismic response of any system that accumulates damage under cyclic loading is dependent not only on the maximum amplitude of the motion but also its…”
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Green, yellow, red, or out of the blue? An assessment of Traffic Light Schemes to mitigate the impact of hydraulic fracturing-induced seismicity by Verdon, James P., Bommer, Julian J.

“…Mitigating hydraulic fracturing-induced seismicity (HF-IS) poses a challenge for shale gas companies and regulators alike. The use of Traffic Light Schemes…”
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What is the smallest earthquake magnitude that needs to be considered in assessing liquefaction hazard? by Green, Russell A, Bommer, Julian J

“…Probabilistic assessments of the potential impact of earthquakes on infrastructure entails the consideration of smaller magnitude events than those generally…”
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Empirical equations for the prediction of the equivalent number of cycles of earthquake ground motion by Stafford, Peter J., Bommer, Julian J.

“…Estimates of the number of cycles of ground motion expected from earthquake scenarios are required for the assessment of liquefaction hazard and the hazard of…”
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Earthquake-induced landslides in Central America by Bommer, Julian J, Rodrı́guez, Carlos E

“…Central America is a region of high seismic activity and the impact of destructive earthquakes is often aggravated by the triggering of landslides. Data are…”
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The Influence of Strong-Motion Duration on the Seismic Response of Masonry Structures by Bommer, Julian J, Magenes, Guido, Hancock, Jonathan, Penazzo, Paola

“…The influence of strong-motion duration on the response of saturated soils is clearly recognised and accounted for in the assessment of liquefaction potential…”
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Mapping the uncertainty in modulus reduction and damping curves onto the uncertainty of site amplification functions by Bahrampouri, Mahdi, Rodriguez-Marek, Adrian, Bommer, Julian J.

“…Probabilistic seismic hazard analysis often requires the use of site response analyses to calculate site amplification factors (AFs) that capture the effects…”
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A probabilistic model to evaluate options for mitigating induced seismic risk by van Elk, Jan, Bourne, Stephen J, Oates, Steve J, Bommer, Julian J, Pinho, Rui, Crowley, Helen

“…Common responses to induced seismicity are based on control of the anthropogenic activity causing the earthquakes, such as fluid injection or withdrawal, in…”
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Numbers of scaled and matched accelerograms required for inelastic dynamic analyses by Hancock, Jonathan, Bommer, Julian J., Stafford, Peter J.

“…Selecting, scaling and matching accelerograms are critically important to engineering design and assessment, enabling structural response to be determined with…”
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Consistent Source-to-Site Distance Metrics in Ground-Motion Prediction Equations and Seismic Source Models for PSHA by BOMMER, Julian J, EERI, M, AKKAR, Sinan

“…Most modern ground-motion prediction equations (GMPE) use definitions of the source-to-site distance that reflect the dimensions of the fault rupture for…”
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