Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Seismic hazard analysis"”.
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Regionally adaptable ground-motion Prediction Equations (GMPEs) for seismic hazard analysis
… associated with the current practice of seismic hazard analysis. Due to the fre- quent use in engineering design practices the GMPEs are often derived for response spectral ordinates (e.g., spectral acceleration) of a single degree of freedom (SDOF) oscillator. The functional forms of …
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Quantification of Uncertainties for Conducting Partially Non-ergodic Probabilistic Seismic Hazard Analysis
… site effects must be incorporated into the hazard analyses. This research focuses on the challenges specific to conducting partially non-ergodic site-specific PSHA using recorded ground motions or site response analysis. The main challenge in estimating local site effects using recorded data …
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Seismic hazard analysis and seismic slope stability evaluation using discrete faults in northwestern Pakistan
… and mitigating structures based on proper seismic hazard and seismic slope stability analyses. This study presents the methodology and results of seismic hazard and slope stability analyses in northwestern Pakistan. The first part of the thesis describes the methodology used to perform …
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Seismic evaluation of the U3ax/bl landfill in the Area 3 Rwms, Nevada Test Site, Nevada
A site evaluation, a seismic hazard analysis and a site response analysis were performed for the U3ax/b1 landfill which is located within the Area 3 Radioactive Waste Management Site of the Nevada Test Site. The site evaluation included application of the Spectral-Analysis-of-Surface-Waves method …
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Seismic Analysis of a United States Navy Structure Using Finite Element Modeling
… to disengage from the structure due to seismic activity. A concern about the seismic loading of the structure was raised by an inspection team. The concern was that, in the event of an earthquake, the lifting rod would disengage from the structure due to vertical seismic actions. In …
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Seismic Site Response and Extraction of Dynamic Soil Behavior From Downhole Array Measurements
… surface motions. PSHA-NL, probabilistic seismic hazard analysis with nonlinear site effects, can be used to estimate seismic hazard with the effect of deep deposits. This thesis extends the PSHA-NL procedure to incorporate a finite fault model in PSHA without applying artificial caps on …
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An investigation into the geomorphology of the Hebron Fault, Namibia, using a satellite-derived, high-resolution digital elevation model (DEM)
… plate. The country also has little recorded seismicity with the largest earthquake on the International Seismological Center (ISC) catalogue being MW 5.4. If the Hebron fault scarp was formed in a single event, this would represent a MW 7.3 earthquake. SCRs do occasionally experience large …
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Disaggregated Seismic Hazard and the Elastic Input Energy Spectrum: An Approach to Design Earthquake Selection
… Disaggregation of a probabilistic model of the seismic hazard offers a rational and objective approach that can identify the most likely earthquake scenario(s) contributing to hazard. An ensemble of time series can be selected on the basis of the modal earthquakes derived from the …
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Estimation of Non-Linear Seismic Site Effects for Deep Deposits of the Mississippi Embayment
… part of the thesis describes the probabilistic seismic hazard analysis with non-linear site effect performed in the ME to develop site coefficients. Current site coefficients, proposed in National Earthquake Hazard Reduction Program (NEHRP), are used with USGS hazard maps to develop site …
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Improvements to the Assessment of Site-Specific Seismic Hazards
… is crucial for improving the assessment of seismic hazards. Site response analyses (SRA) can numerically accommodate the mechanics behind the wave propagation phenomena near the surface as well as the variability associated with the input motion and soil properties. As a result, SRA …
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Partitioning Uncertainty for Non-Ergodic Probabilistic Seismic Hazard Analyses
… motion parameters is critical for Probabilistic Seismic Hazard Analyses (PSHA). This is particularly important for critical facilities that are designed for long return period motions. Non-ergodic PSHA is a framework that allows for this proper accounting of uncertainties. This, in turn, allows …
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The significance of seismic hazard on structural design in Zambia
… Zambia have tended to neglect the risk posed by seismicity on structures, and no earthquake design and construction guides exist. The recent earthquake occurrences suggest that earthquake incidences can no longer be ignored. The research studied the occurrence and significance of earthquakes on …
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Considering a Seismically Active Leech River Valley Fault Zone in Southwestern British Columbia
… of Victoria, British Columbia, Canada. New paleoseismic studies suggest at least three surface-rupturing earthquakes have exceeded a moment magnitude (M) of 6 within a proposed Leech River Valley Fault Zone (LRVFZ) within the last 9,000 years. We examine the impact of an active LRVFZ to predicted …
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Bayesian Methods for Intensity Measure and Ground Motion Selection in Performance-Based Earthquake Engineering
… ground motions and Intensity Measures (IM) for seismic analysis. This open-ended nature changes the quantified building performance depending upon the ground motions and IMs selected. So, improper ground motion and IM selection can lead to errors in structural performance prediction and thus to …
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Numerical and experimental methods for seismic risk assessment of civil and industrial structures
Due to high seismic vulnerability and severity of possible failure consequences, petrochemical installations are often considered as “special risk” plants. Although tanks, pipes, elbows and bolted flanges have been a major concern in terms of seismic design, generally, they have not been analysed …
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Improved ground motion intensity measures for reliability-based demand analysis of structures
… Earthquake Engineering (PBEE), evaluating the seismic performance (or seismic risk) of a structure at a designed site has gained major attention, especially in the past decade. One of the objectives in PBEE is to quantify the seismic reliability of a structure (due to the future random …
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Development of Computational Tools for Characterization, Evaluation, and Modification of Strong Ground Motions within a Performance-Based Seismic Design Framework
… they can be input into time-domain nonlinear analysis of structures. The generation of these acceleration histories is cumbersome and daunting. This is especially so due to the sheer magnitude of the data processing involved. The purpose of this thesis is the development and documentation of …
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Multi-objective optimal seismic design of buildings using advanced engineering materials
Although seismic safety remains a major concern of society--and unfortunately this observation has been underpinned by recent earthquakes--economy and sustainability in seismic design are growing issues that the engineering community must face due to increasing human population and excessive use of …