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 20 of 20 for “"Earthquake response"”.
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Earthquake Response of Fixed Offshore Structures
Made available in DSpace on 2014-12-10T22:22:02Z (GMT). No. of bitstreams: 1 7405608.pdf: 8079229 bytes, checksum: 9787a6a709acbd666e721b6b88150847 (MD5) Previous issue date: 1973
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Formulating earthquake response modes in Iran
… the optimal distribution of rescuers after an earthquake with a very large magnitude caused major damage in two different cities. A model was developed to optimally divide all of the available rescuer workers such that the expected number of lives saved was maximized. When the method was tested …
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An Evaluation of Scaling Methods for Earthquake Response Spectra
In current practice, design response spectra are scaled or normalized by the three peak ground motion values--displacement in the low, velocity in the intermediate, and acceleration in the high range of frequencies. In this study, alternative scaling factors are evaluated with the purpose of …
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Structural control strategies for earthquake response reduction of buildings
… buildings from extreme dynamic events such as earthquakes and strong winds, and has been applied to numerous real buildings in recent years. Structural control strategies can be divided into four categories: passive, active, semi-active, and hybrid control. Because passive control systems are …
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Experiments to Study the Earthquake Response of Reinforced Concrete Frames With Setbacks
The dynamic behavior of planar reinforced concrete frames with irregular profiles is investigated in this study.
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Experiment to Study Earthquake Response of R/c Structures With Stiffness Interruptions
… was to develop improved understanding of the earthquake response of reinforced concrete structures having abrupt interruptions in the lateral-force-resisting elements in adjacent stories. The study comprises both experimental and analytical phases. Experimental work includes earthquake …
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Earthquake Response of Light Multiple-Degree-of-Freedom Secondary Systemsby Spectrum Techniques
Made available in DSpace on 2014-12-10T22:21:24Z (GMT). No. of bitstreams: 1 7105149.pdf: 6191643 bytes, checksum: 943c2f36bacaefd24665c297895d7a1c (MD5) Previous issue date: 1970
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Detecting and Quantifying Damage in Buildings Using Earthquake Response Data and Capacity Curves
… of a building to resist the demand of strong earthquake ground motions. Compared to estimates and approximations based on numerical nonlinear analyses, a capacity curve constructed from actual building response data would be a more realistic representation of the behavior for the building. A …
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Effects of residual stresses and initial imperfections on earthquake response of steel moment frames
… to monotonic pushover, cyclic pushover and response history analyses. The observed behavior was used to draw comparisons between systems with and without residual stresses and initial imperfections. Cyclic strength degradation at beam-to-column connections was also considered to examine the …
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Autonomous vision-based inspection of RC railway bridges for rapid post-earthquake response and recovery
… (RC) railway bridges to realize rapid post-earthquake response and recovery, which are crucial for minimizing the disruptions to people’s lives and business. Currently, after an earthquake, coarse preliminary structural assessment is performed based on the data immediately available (e.g. …
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Hilbert -Huang -Transform Based Modelling and Simulation of Nonstationary Processes and Applications to Earthquake Engineering
… further applied to generation of Uniform Hazard Earthquake Response Spectrum and Ground Motions. A record-based methodology is proposed and demonstrated by an example at Los Angeles. The resulting UHRS compare well with those of USGS and SAC. The method does not rely on theories or empirical …
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Next generation seismic fragility curves for california bridges incorporating the evolution in seismic design philosophy
… risk to highway bridges is crucial in pre-earthquake planning, and post-earthquake response of transportation systems. Such assessments provide valuable knowledge about a number of principal effects of earthquakes such as traffic disruption of the overall highway system, impact on the …
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Study of base isolation systems
… tension cross bracing is used to compare the response of both fixed base and base isolated schemes to severe earthquake excitations. Techniques for modeling the superstructure and the isolation system are also described. Elastic time-history analyses were carried out using comprehensive finite …
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Seismic Risk Analysis for Mid-America Communities
… communities. Accordingly, the most devastating earthquake for communities in the small and the large source zones (represented by Sikeston and Carbondale, respectively) would be an M8 earthquake along the New Madrid seismic fault, and in the outside source zone (represented by Urbana) an on-site …
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Effect of air on vibration of structures
… vibrations — from acoustic behavior to earthquake response - in practical buildings. The work consists of several primary components: derivation of theories that predict the effect of air on structural vibrations and vice-versa, design of experiments, and determination of the importance …
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Navigating holostic and sustainable learning:Challenges and opportunities in ongoing and creeping emergencies
… case studies of Plan International's Yogyakarta Earthquake Response and Recovery Program in Indonesia and its Rapid Education Pilot Project in Sierra Leone. The examination reveals that the principles and their constituent elements were of varying importance and practicality depending on context. …
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Measuring Liquefied Residual Strength Using Full-Scale Shake Table Cyclic Simple Shear Tests
… was performed at the Parson’s Geotechnical and Earthquake Laboratory at California Polytechnic State University, San Luis Obispo. T-bar penetrometer pullout tests were used to measure residual strength of the liquefied soil during cyclic testing. Cone Penetration Testing (CPT) was performed on …
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Investigating the Dynamic Soil Behaviour of Cape Flat Sands Under Earthquake Cyclic Loading
… due to limited assumptions about soil type, earthquake response, relative density, plasticity, confining pressure, and saturation level. The cyclic properties of the Cape Flat Sands were evaluated at ten different cyclic axial strains (0.005%, 0.01%, 0.02%, 0.05%, 0.1%, 0.2%, 0.4%, 0.6%, 0.8% …
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On-line model updating in earthquake hybrid simulation
… efficient tool for the evaluation of structural response under earthquake loading. In the conventional hybrid simulation, the responses of few critical components are obtained by testing while the numerical module is assumed to follow an analytical idealization. Where there is a much larger …
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Performance assessment of special concentrically-braced frames in moderate seismic regions
… consequence of non-ductile frame behavior during earthquake response. The lateral force resisting behavior of low-ductility CBFs relies on reserve capacity, or secondary stiffness and strength, following initial brittle limit states. This study investigates the behavior of SCBFs designed for …