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Showing 1 to 20 of 24 for “"Seismic Damage"”.
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Prediction of seismic damage in reinforced concrete frames
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1980.
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Seismic Damage Analysis and Design of Unreinforced Masonry Buildings
A model for evaluating the structural damage to masonry buildings subjected to earthquake ground motion is proposed. Damage is expressed as a combination of the effects of excessive deformation and repeated loadings. Model parameters for unreinforced brick masonry were obtained from cyclic load …
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Effect of ground motion frequency on non-structural seismic damage
… of structures are significant to structural damage evaluation, and most seismic design methods consider the effect of peak ground acceleration, while the frequency content of seismic activities remains largely unexplored. In order to better understand the impact of low magnitude seismic …
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Seismic Damage Analysis and Damage-Limiting Design for R/c Structures (Earthquake, Building, Reliability, Design)
A model for evaluating structural damage in reinforced concrete structures under earthquake ground motions is proposed. Damage is expressed as a linear combination of the maximum deformation and the effect of repeated cyclic loadings. Available static (monotonic) and dynamic (cyclic) test data were …
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Assessment of seismic damage to civil structures using statistical pattern recognition techniques and time series analysis
The ability to estimate seismic induced damage to civil infrastructure is undoubtedly one of the most important challenges faced by structural engineers. In this research two complementary methods of damage estimation using either knowledge of the structure and earthquake or recorded structural …
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Deep learning-based surrogate models for post-earthquake damage assessment
<p>"Seismic damage assessment is a critical step to enhance community resilience in the wake of an earthquake. This study aims to develop deep learning-based surrogate models for widely used fragility curves to achieve more accurate and rapid assessment in practice. These surrogate models are based …
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Motion based seismic design and loss estimation of diagrid structures
… Little research has been performed on the seismic performance of Diagrids and how it integrates with seismic loss estimation. A motion based design scheme can facilitate the seismic design of Diagrids with the ultimate goal of reducing upfront costs and repair costs. In this thesis we …
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Development of Multiobjective Optimization Procedures for Seismic Design of Steel Moment Frame Structures
Genetic algorithm based automated seismic design procedures are developed in the present study for member sizing optimization of code-compliant regular plane steel special moment resisting frame structures with simultaneous as well as separate treatment of multiple objective functions that reflect …
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Adjustable Frequency Bandgap for Seismic Vibration Isolation of MRE-Based Metamaterial Foundations
… eventually damaging the superstructure. These seismic waves are more frequent in some areas because of their geological variations. The seismic vibration caused by earthquakes can damage the structure, leaving it unrectifiable and unusable. Different types of seismic isolation are used …
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Seismic retrofit of precast panel buildings in Eastern Europe
… explores the effectiveness of global bracing seismic mitigation techniques on an existing precast panel building located in Sofia, Bulgaria. The in-situ building is first analyzed using SAP2000 and then again after the bracing is added to the model. A variety of parameters such as drift, floor …
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Forecasting earthquake losses in port systems
… infrastructure, but are vulnerable to seismic hazards. Downtime and reduced throughput from seismic damage in ports results in significant business interruption losses for port stakeholders. Current risk management practices only focus on the effect of seismic hazards on individual port …
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Rolling-Ball Rubber-Layer system for the lightweight structures seismic protection: experimentation and numerical analyses
Protection of high-value building contents from seismic damage represents a worldwide challenging task. Artefacts, sophisticated medical and electrical equipment, high performance computer installations and other special contents have shown, in the last years, their high vulnerability both for high …
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Seismic performance assessment for structural optimization
… of performance-based design to mitigate damage in addition to protecting human lives. A developing trend is to consider damage directly as a measure of seismic performance. In spite of the ability to estimate the cost of future earthquakes, adjusting the investment in seismic upgrades is …
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Improved seismic design of structures using risk-targeting and cost-minimization considerations
… addresses various topics in the context of seismic design of structures with risk and loss considerations. Three design philosophies are investigated: the one based on uniform-hazard spectra, the risk-targeting technique, and an approach that minimizes the life-cycle costs. While the …
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Performance of shape memory alloy rehabilitated bridge columns under sequential earthquakes
… great potential in retrofitting and/or repairing seismically deficient RC bridge columns. In order to gain recognition as an effective seismic retrofit/repair strategy and systemize its application, however, it is necessary to thoroughly study the unique behavior of this new material and its …
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Characterization of Dynamic Structures Using Parametric and Non-parametric System Identification Methods
… types on the structural behaviors under seismic excitation. Three foundation types were tested including the fixed, pile and box foundations on a hydraulic shake table, and the dynamic responses of the SFS systems were measured with the instrumented sensing devices. Parametric modal …
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Structural control strategies for earthquake response reduction of buildings
Destructive seismic events continue to demonstrate the importance of mitigating these hazards to building structures. Structural control has been considered one of the most effective strategies to protect buildings from extreme dynamic events such as earthquakes and strong winds, and has been …
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