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 22 for “"Moment resisting frame"”.
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Seismic retrofit of existing reinforced concrete moment resisting frame structures using diagonal prestressing
… experimentally that a 1 bay, 1 storey R/C frame with masonry infill panels, designed based on the ACI 318-1963 building code, hence seismically deficient, could be retrofitted with prestressed cables to reduced lateral drift. In addition, analytical modeling of the 1 storey frame and …
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High-performance braces for seismic design
… sufficient stiffness. Traditional lateral force resisting systems such as the moment resisting frame and the concentrically braced frame are both conventional structural schemes that have been implemented for many years, but result in only mediocre performance levels. The lacking stiffness of a …
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Evaluation of force distribution within a dual special moment-resisting and special concentric-brace frame system
Dual Lateral Force Resisting Systems are currently required by code to include a Moment Resisting Frame capable of resisting at least 25% of the lateral loads. This thesis evaluates the seismic performance of a specific type of dual system: a Special Moment Resisting Frame-Special Concentric Brace …
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Development of Multiobjective Optimization Procedures for Seismic Design of Steel Moment Frame Structures
… of code-compliant regular plane steel special moment resisting frame structures with simultaneous as well as separate treatment of multiple objective functions that reflect steel material usage, initial expenses, degree of design complexity, seismic structural performance indices, and lifetime …
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The Effectiveness of Seismically Designed Steel Framing Systems Subjected to Blast Loading
… to blast loading is investigated. They are: a moment resisting frame (MRF), a concentrically braced frame (CBF) and an eccentrically braced frame (EBF). The blast loads are assumed to be unconfined, free air burst detonated 15 ft from one of the center columns. The structures are modeled and …
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An Investigation of the Behavior of Structural Systems with Modeling Uncertainties
… Despite the progress toward a probabilistic framework, the variability in structural analysis results due to modeling techniques has not been considered. This work investigates the uncertainty associated with modeling geometric nonlinearities and Rayleigh damping models on the response of …
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Impacts of lateral code changes associated with the 2006 International Building Code and the 2008 California Building Code
… Through a comparison of the design of a steel moment-resisting frame low-rise structure, it was determined that the new code will result in design values that differ from those resulting from the previous codes. In order to compare the relevant codes in different areas of the country, this …
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Column Capacity Evaluation For Low-Rise Moment Frame Steel Buildings In Mississippi Subject To Wind And Seismic Hazards
For the design of steel frame structures, AISC outlines approaches of second-order analysis. In this study, two of these approaches are considered: Amplified First-Order Analysis Method and Direct Analysis Method. The methods were studied using SAP2000. Amplification of moments in a two-story plane …
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Effect of Hysteresis Type on Drift Capacity for Global Collapse of Moment Frame Structures for Seismic Loads
… that different hysteresis behavior in moment frames subjected to seismic loads may lead to different levels of response because of degradation in strength and stiffness. To examine the existence and magnitude of this effect, this research aims to: (1) Determine the global collapse …
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Effects of residual stresses and initial imperfections on earthquake response of steel moment frames
… examine these issues, a series of steel special moment-resisting frame models were subjected 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. …
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Semi-active control of elastic and inelastic building structures with piezoelectric friction dampers
… was applied to a 20-story, inelastic, steel moment-resisting frame building to study its seismic effectiveness under four ground motion records. For damper placement in practical applications, a sub-optimal and heuristic procedure was developed to distribute PFDs on the structure. The …
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A Low Cycle Fatigue Testing Framework for Evaluating the Effect of Artifacts on the Seismic Behavior of Moment Frames
… artifacts. For instance, full-scale testing of moment resisting connections is expensive which makes it economically infeasible to experimentally examine the wide range of possible artifact types, artifact locations, and structural configurations. A framework has been developed for evaluating …
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A Variable Stiffness Energy Dissipation Device for Vibration Control of Steel Frames
… enhancing the seismic performance of shear and moment resisting frames. Additionally, design guidelines on how to apply the proposed device to moment resisting frames are provided. Over the years, various types of energy dissipation devices have been developed and used to dissipate energy …
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A Case Study on Medium and High Rise Timber Buildings
… this topic is yet to be discovered. Light frame wood LFW has been used for decades but was always restricted to certain limits. Limits that heavy timber can overcome easily. In this thesis, topics related to the application of heavy timber in the construction of buildings are searched. …
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Integrating Structural Fire Analysis with Hybrid Fire Testing: A Framework for Enhanced Stability, Software development and Full-Scale Evaluation.
… steel tube (CFST) column within a simulated moment-resisting frame. The test captures key system-level behaviours, including axial restraint, load redistribution, and force reversal during heating and contraction, that cannot be reproduced in traditional furnace tests. Comparison with …
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An integrated earthquake impact assessment system
… to as NEES Integrated Seismic Risk Assessment Framework (NISRAF). The software tool combines all necessary components in order to obtain the most reliable earthquake impact assessment results possible. The components are (i) hybrid simulation, (ii) free-field and (iii) structural sensor …
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Application of New Materials and Innovative Detailing for Reinforced Concrete Structures
… energy dissipation of rocking columns and frames. Deformed reinforcing steel bars without any reduction of the section enclosed in steel pipes was proposed as external energy dissipaters, entitled as buckling restrained reinforcement (BRR) in the present study. The test results showed that …
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Modeling and Behavior of the Beam/Column Joint Region of Steel Moment Resisting Frames
… yielding on the stiffness and strength of steel moment resisting frames (SMRF) has been the topic of numerous papers over the past thirty years. When properly detailed, the PZ is an excellent source of energy dissipation, even under large inelastic deformations. Due to these large inelastic …
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Numerical and experimental methods for seismic risk assessment of civil and industrial structures
… the performance-based earthquake engineering framework. Particular attention is paid to component resistance to leakage and loss of containment (LoC) even though several different limit states are investigated. The LNG tank, support structures and pipework, including elbows and flanges, are …
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Development and Validation of a Twelve Bolt Extended Stiffened End-Plate Moment Connection
Three end-plate moment connection configurations are prequalified for special moment frames for seismic applications in AISC 358-10. The eight bolt extended stiffened connection is the strongest of the three configurations, but it can only develop approximately 30 percent of currently available …
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