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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 “"Strong Motion"”.
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A Nonstationary Stochastic Model for Strong-Motion Earthquakes
Made available in DSpace on 2014-12-08T23:56:37Z (GMT). No. of bitstreams: 1 6612284.pdf: 3704019 bytes, checksum: b3064ffecf83cb860c4ffbe679263987 (MD5) Previous issue date: 1966
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Analysis and modelling of the effects of the source and medium on strong motion
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1980.
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Stochastic Analysis of Seismic Safety Against Liquefaction
… of the mean and standard deviation of the strong-motion duration of a random seismic loading with a given intensity that causes liquefaction. These statistics are used to define the seismic resistance curves against liquefaction in the deposit. It is assumed that liquefaction occurs when …
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Empirical nonlinear site response applicable to Greater Vancouver, British Columbia
In Greater Vancouver, strong earthquake shaking has not been recorded to quantify expected nonlinear soil response. Earthquake horizontal to vertical spectral ratios (eHVSR) are evaluated at seismic stations located at the edges or deeper center of sedimentary basins in Mexico City, the Kanto basin …
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Inelastic seismic behavior of stiffening systems : multi-span simply-supported (MSSS) bridges
… stiffness, strength, gap size, and mass), 41 strong motion records, and several damage criteria are considered and effects of the stiffening parameters variations on the dynamic response of simple stiffening systems are presented. It is shown that on the average the displacement response is …
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Development of Deep Site Specific and Reference Shear Wave Velocity Profiles in the Canterbury Plains, New Zealand
… developed across the Canterbury basin at nine strong motion stations using a combination of active and passive surface wave methods and horizontal to vertical spectral ratio measurements. A multi-mode, multi-method joint inversion process, which included Rayleigh and Love wave dispersion and …
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Seismic Fragility Assessment for Reinforced Concrete High -Rise Buildings
… demand. Thirty natural and twenty artificial strong motion records were selected for the analyses that would produce an appropriate range in structural response parameters due to variation in magnitude, distance and site condition. The overall approach is generic and can be applied to develop …
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Spatial Variation of Magnitude Scaling Factors During the 2010 Darfield and 2011 Christchurch, New Zealand, Earthquakes
… (MSF) account for the durational effects of strong ground shaking on the inducement of liquefaction within the simplified liquefaction evaluation procedure which is the most commonly used approach for assessing liquefaction potential worldwide. Within the context of the simplified procedure, …
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Disaggregated Seismic Hazard and the Elastic Input Energy Spectrum: An Approach to Design Earthquake Selection
… the seismic hazard, to the extent that a single motion parameter captures the important time-domain characteristics. A possible limitation to this approach arises because most currently available motion prediction models for peak ground motion or oscillator response are essentially independent of …
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Station Delays, Their Standard Deviations, and Event Relocations in the Reno-Area Basin from a Dense USArray Flexible Array Deployment during the 2008 West Reno Earthquake Swarm
… its geometry control the amplification of ground motion. So from the point of earthquake hazard, it is important to know the basin geometry and its depth for the hazard evaluation of an area. Knowing the basin geometry and depth and velocity of sediments will enhance our understanding of ground …
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Evaluation of Deep Learning Algorithms in Predicting Seismic Response of a Reinforced Concrete Structure
… excitation. Given the increasing availability of strong-motion data and expanded usage of deep learning in structural health monitoring, this thesis seeks to evaluate the predictions of purely data-driven and physics-informed architectures using processed instrumentation data in order to more …
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An Examination of Site Response in Columbia, South Carolina: Sensitivity of Site Response to "Rock" Input Motion and the Utility of Vs(30)
… with alternative assumptions regarding input motions and procedures prescribed in the IBC 2000 building code, particularly the use of average shear wave velocity in the upper 30 meters as an index for engineering design response spectra. Site specific subsurface models are developed for four …
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Structural modelling and earthquake analysis of a hospital building located within the Tjörnes fracture zone in Iceland
… system is a part of the multidisciplinary strong motion array,ICEARRAY II, which is in operation in North Iceland. The measurements have been ongoing for one year and three notable events have occurred that provide useful full-scale records of the building excitation and response and which …
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Topographic Effects in Strong Ground Motion
Ground motions from earthquakes are known to be affected by earth's surface topography. Topographic effects are a result of several physical phenomena such as the focusing or defocusing of seismic waves reflected from a topographic feature and the interference between direct and diffracted seismic …
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Multiple earthquake effects on degrading reinforced concrete structures
… of load-displacement loops. Moreover ground motion sequences used in previous studies were randomized and hence the characteristics of ground motions effects on the response were not accurately accounted for. Findings from previous research indicated that repeated shaking has a minimal effect …
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Ductility demands of filtered earthquakes on reinforced concrete frames
… soils. Key characteristics of filtered ground motions are generally amplified acceleration, increased predominant period, and lengthened duration of strong shaking. Filtering of seismic waves through the soft soils in the Fraser River delta in British Columbia was investigated using the …
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Contributions to the analysis and mitigation of liquefaction in loose sand slopes
… for a suite of 58 reference seismic ground motions from the NGA database (Chiou et al., 2008) and from Shakeout simulations (Graves et al., 2008) while a parallel study at the Georgia Institute of Technology (Shafieezadeh, PhD 2011) couples the predicted free-field pore pressures and ground …