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 14 of 14 for “"nonlinear time history analysis"”.
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Seismic Performance and Damage Risk of Modular CLT Housing Using Nonlinear Time History Analysis
… and calibrated using OpenSees to perform nonlinear static and time history analyses. The Multiple Stripe Analysis procedure was used to derive the conditional probability of collapse fragility curves and interstory drift distributions, which, along with generic damage fragilities and …
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A Comparison of Optimized Nonlinear Time History Analysis and the Equivalent Lateral Forces Method for Brace Design
… braced frames (BRBF's). This procedure uses nonlinear time history analysis and a formal optimization algorithm. The time history analysis includes an elasto-plastic model for the braces. The optimization algorithm is a genetic algorithm. This procedure is referred to throughout the thesis as …
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Seismic Behavior of Pile -Supported Bridges
… modeling technique is applied for seismic analysis of an existing truss-arch bridge spanning across the Mississippi River in southern Illinois (the Cairo Bridge). The nonlinear time-history analysis is performed using input motions obtained from ground response analysis of bedrock motions …
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An investigation of the principles and practices of seismic isolation in bridge structures
… systems is supplemented by a quantitative nonlinear time-history analysis that illustrates the response of a simple span bridge to seismic excitation. The analysis examines the effects of the varying stiffness of a lead-rubber elastometric bearing upon structural response when subjected to …
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A Variable Stiffness Energy Dissipation Device for Vibration Control of Steel Frames
… is conceptualized and numerically studied. Using nonlinear time history analysis, results are obtained to illustrate the effectiveness of the proposed device in enhancing the seismic performance of shear and moment resisting frames. Additionally, design guidelines on how to apply the proposed …
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Probabilistic Assessment of Non-Ductile Reinforced Concrete Frames Susceptible to Mid-America Ground Motions
… tools for efficient uncertainty analysis and seismic vulnerability and risk assessment of such gravity load designed (GLD) RC frames and to use these tools in evaluating the seismic vulnerability of RC frames that are representative of the building inventory in Memphis, TN the …
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Response modification factor of reinforced concrete moment resisting frames in developing countries
… This study utilizes incremental dynamic analysis (IDA) and peak ground parameters to determine the R factor of reinforced concrete (RC) moment resisting frames (MRFs) in Pakistan. A suite of ground motion records from the region is used in the study. Two-dimensional building models are …
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Assessment of Seismic Behaviour of Large LNG Tanks Considering Soil-Foundation- Structure Interaction
… Considering the complexity of the seismic analysis and design of such structures due to the Fluid-Structure Interaction (FSI) and Soil–Foundation-Structure Interaction (SFSI) effects, advanced modelling and analysis are required. This thesis conducts the three-dimensional fully nonlinear …
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A New Visco-Plastic Device for Seismic Protection of Structures
… through different parameters. First, a nonlinear time history analysis was conducted on structures with a preliminary model of the device using SAP2000 program to check the effectiveness of the device on the response of different structures under ground excitations. The device resulted …
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Investigation of Modular Cross-Laminated Timber Rocking Walls and Rocking Wall -- Light-Frame Shear Wall Dual Systems for Seismic Resilience
… fabrication simplicity. Predictive equations and nonlinear numerical models were developed and validated against test data, offering tools to support seismic design and performance assessment of modular PT-CLT-RW systems with and without toe reinforcement.\\ The next part of this dissertation …
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Seismic Vulnerability Assessment of As-Built and Retrofitted Multi-Frame Box-Girder Bridges
… and Loma Prieta. However, the seismic fragility analysis of multi-frame bridges has not been sufficiently studied as other bridge types, and accordingly it is the focus of this study. Fragility curves are conditional probability statements that give the likelihood that a structure will meet or …
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A Comparative Study on Seismic Analysis Methods and the Response of Systems with Classical and Nonclassical Damping
… thesis investigated the application of seismic analysis methods and the response of idealized shear frames subjected to seismic loading. To complete this research, a Design Basis Earthquake (DBE) for a project site in San Luis Obispo, CA, and five past earthquake records were considered. The DBE …
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Seismic Performance Comparison of a Fixed-Base Versus a Base-Isolated Office Building
… performance is compared, and a cost-benefit analysis is completed. The base isolation system that is utilized is composed of Triple Friction Pendulum (TFP) bearings.</p> <p>The work of this thesis is divided into four phases. First, in the building selection phase, the structural systems (SMF …
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Determining seismic response of mid-rise building frames considering dynamic soil-structure interaction
… (SSI), which if not taken into account in analysis and design properly; the accuracy in assessing the structural safety, facing earthquakes, could not be reliable. Performance-based engineering (PBE) is a technique for seismic evaluation and design using performance level prediction for …