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 7 of 7 for “"site class"”.
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Sensitivity tests between Vs30 and detailed shear wave profiles using 1D and 3D site response analysis, Las Vegas Valley
Site characterization is an essential aspect of hazard analysis and the time-averaged shear-wave velocity to 30 m depth "Vs30" for site-class has become a critical parameter in site-specific and probabilistic hazard analysis. Yet, the general applicability of Vs30 can be ambiguous and much debate …
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Disaggregated Seismic Hazard and the Elastic Input Energy Spectrum: An Approach to Design Earthquake Selection
… The dependence of Vea and PSV upon (NEHRP) site classification is virtually identical. The variance of Vea is uniformly less than that of PSV, indicating that Vea can be predicted with slightly less uncertainty as a function of magnitude, distance and site classification. The effects of site …
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Even-aged regeneration alternatives for low quality oak hardwood forests in the Virginia Piedmont
The effects of site quality, dormant and growing season harvests, and four even-aged regeneration treatments on natural hardwood and planted loblolly pine (Pinus taeda L.) are examined three years after clear felling and whole-tree harvesting upland hardwood stands in the Virginia Piedmont. Natural …
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Estimation of Earthquake Input Energy, Hysteretic Energy and its Distribution in MDOF Structures
… <p>Earthquake input energy spectra for four site classes (Site Class B, C, D and E as per IBC 2012 soil classifications) and four hysteretic models (bilinear plastic, stiffness degradation, bilinear flag and bilinear slip) are developed for five ductility levels (=1, 2, 3, 4, 5) using ground …
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Impact of Cascadia Subduction Zone Earthquakes on Coastal Bridges in Washington State
… Northwest, amplification factors for each site class were generated for 10 locations in the Washington State. To apply the amplification factors to other locations, the medians and dispersions of the amplification factors of all 10 locations for all soil profiles were computed for each …
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Post-Earthquake Damage Repair and Probabilistic Damage Control Approach for Reinforced Concrete Bridges
… bents. The uncertainties in ground motions, site class, bent configuration, earthquake return period were included in the analyses. In the sixth part of the study, the results of the reliability analyses were investigated, and a direct probabilistic design procedure was developed to calibrate …
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Fundamental Dynamics and Performance Assessment of Three-Dimensional Seismic Isolation
… carried out to evaluate the effect of different site conditions, building aspect ratio and 3D isolation parameters on the structure and bearing response. The results show that effective 3D isolation is achieved by designing the system with vertical isolation period in the range of 0.5 - 1.0 sec. …