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 227 for “"Retrofitting"”.
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Retrofitting for resilience
This thesis explores the incentives and barriers to retrofit single-family and small multi-family homes in Boston, in response to the city's declared goal of reaching carbon neutrality by 2050 while protecting citizens from extreme weather events induced by climate change. Considering small …
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Retrofitting the Tennessee Valley Authority
As the flagship of the New Deal, the Tennessee Valley Authority (TVA) was a triumph of regional and environmental design that has since fallen on hard times. When writer James Agee toured the region in 1935, he described the massive dam construction underway as a great skeleton across the valley, …
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Transformative infrastructures: retrofitting the apartheid city
This dissertation is a speculation on the role of infrastructure in shaping the city. By reimagining infrastructure in terms of its social, economic and topographical effects rather than purely on functional terms, the project proposes a method of intervention that transforms the city by …
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Structural retrofitting using fiber reinforced polymers
… has led to increasing applications in structural retrofitting. When compared with other solutions to retrofit bridges or buildings that are in poor state or need to be able to withstand greater loads than the one they where designed for originally, fiber reinforced polymers appear to be an …
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Seismic retrofitting of deficient Canadian buildings
… buildings. It then presents the most common retrofitting strategies applicable to low-rise buildings commonly found in major Canadian cities. A case study assessing the performance of hybrid base isolation systems is then presented. The performance of passive and semi-active hybrid base …
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Techniques of seismic retrofitting for concrete structures
Recent earthquakes, starting with the 1971 San Fernando Earthquake in California, left major destructions, damaged the infrastructure, and raised questions about the vulnerability and design practice of structures, especially concrete structures. Design codes have being updated to include seismic …
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Monopile Foundation Offshore Wind Turbine Simulation and Retrofitting
<p>Offshore wind turbines (OWT) provide a renewable source of energy with great proximity to many large cities. This has caused a major increase in OWT development and implementation, primarily in Europe, but spreading throughout the world. There are a multitude of different foundation options, …
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The retrofitting of existing buildings for seismic criteria
This thesis describes the process for retrofitting a building for seismic criteria. It explains the need for a new, performance-based design code to provide a range of acceptable building behavior. It then outlines the procedure for retrofitting a building. This procedure begins with acquiring …
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Optimization and network sensitivity analysis for process retrofitting
Retrofitting is the redesign of an operating chemical plant to find new configurations and optimal operating conditions. In the chemical industry, 60% of new capital investments in plants and equipment are retrofitting projects, while only 10% goes to building new plants. Investment in retrofitting …
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Design methodologies for the seismic retrofitting of bridges
… is necessary to decide on a retrofit strategy. Retrofitting involves either strengthening the bridge or shifting the period out of the power range of the earthquake. This paper demonstrates the effectiveness of shifting the period by base isolation with two case studies of isolated bridges and a …
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Retrofitting unreinforced concrete masonry to resist tornado loading
… need to reinforce these systems is large, but retrofitting with conventional steel reinforcement is time consuming and costly; however, externally bonded Fiber Reinforced Polymer (FRP) composites represent a high strength, low cost alternative which and can be installed in a fraction of the …
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STRUCTURAL RETROFITTING OF CONCRETE BEAMS USING FRP - Debonding Issues
A 3D nonlinear finite element analysis modelling framework was developed for simulating the behaviour of beams retrofitted with fibre reinforced polymer (FRP). The ABAQUS program was used for this purpose. Concrete was modelled using a plastic damage model. Steel bars were modelled as an elastic …
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Seismic retrofitting of the Ste-Justine Hospital in Montreal
… buildings. This thesis examines the seismic retrofitting project for the Ste-Justine Hospital in Montreal. The hospital was built in the 1950s, at a time when seismic engineering regulations were rudimentary and applied with inconsistency. The total floor area spanned by the hospital exceeds …
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Retrofitting beam-to-column joints for improved seismic performance microform
Before the 1970's, most codes for the design of reinforced concrete structures did not include provisions for ductility during seismic events was not prevalent in most codes. The guidelines that did exist were minimal, and often left a fair amount of room for interpretation by the design engineer. …
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Assessment of energy and cost effectiveness in retrofitting existing buildings
The construction of buildings and their operation contribute to a large proportion of total energy end-use worldwide; indeed, buildings account for 40% of the total energy consumption and for 36% of CO2 emissions in the European Union. The sector is expanding, which is bound to increase its energy …
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Retrofitting of Mechanically Degraded Concrete Structures Using Fibre Reinforced Polymer Composites
This research involves the study of the short term loaded behaviour of mechanically degraded reinforced concrete (RC) flexural elements, which are strengthened with fibre reinforced polymer (FRP) composites. The two main objectives have been: (a) to conduct a series of realistic tests, the results …
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Collapse Analysis and Selective Retrofitting using the Applied Element Method, AEM
L'abstract è presente nell'allegato / the abstract is in the attachment
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