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 17 of 17 for “"retrofit design"”.
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Analytical and experimental evaluation of steel sheets for blast retrofit design
… MISSOURI AT AUTHOR'S REQUEST.] Blast resistant design has come to the forefront of engineering concerns in the wake of recent terrorist threats to the United States. The focus of this research is to evaluate the use of thin steel sheets as a suitable retrofit material that will assist a wall …
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Passive solar for urban tenement housing : case study and retrofit design for West-Berlin
… All the factors related to climatic responsible design under local conditions are explained in a step-by-step procedure suitable for use by any architectural office concerned with using passive solar energy in an urban context.
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Urban building energy modeling and retrofit design as a means to inform effective public policy : Boston case study
… the potential savings associated with energy retrofits in selected neighborhoods in the city of Boston, by developing a comprehensive urban energy model and implementing two retrofit strategies. As part of the methodology, this thesis will combine GIS data with building construction, use, and …
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Using shape memory alloy as dampers : design methodology
… are suited only to forward analysis and not to design. This project proposes a generalized friction element, the lambda box, to model the stress-strain curve of SMA during pseudoelasticity. Simulation is carried out to study the dynamic response of such a system under harmonic loading. Three …
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Automated retrofit of heat exchanger networks
… Reducing process heat demand often centres on retrofitting the heat exchanger network to improve heat recovery and lower the hot utility consumption. This thesis presents a comprehensive automated retrofit design method for heat exchanger networks, fulfilling several gaps in current knowledge. …
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Seismic vulnerability assessment of off-ramp structures of the Las Vegas downtown viaduct
… by moment-curvature analysis. Then, the existing design of the bridge columns was compared to the requirements of the current bridge design codes. In the second stage, the moment, shear and deformation demands on the columns due to a strong earthquake were determined using the seismic provisions …
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Evaluation study for an ammonia-fed and solid-oxide fuel cell powered trailing suction hopper dredger for Van Oord Offshore Contractors
… analysis concerning a hybrid power system, a retrofit design of a TSHD and a cost estimation study of the implementation of the researched technologies. It was found that the implementation of an Ammonia-fed and Solid-Oxide-Fuel-Cell will significantly decrease the autonomy of the TSHD by 80%. …
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Hydrologic Response of Alternative Valley Fill Reclamation Designs
… of the western U.S. is geomorphic landform design. Geomorphic reclamation is based upon creating landforms that resemble the mature surrounding watersheds in both topography and hydrologic response. The objective of this research was to predict the hydrologic response of a mine site …
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Retrofitting of reinforced concrete beams with CFRP straps to enhance shear capacity
… shear cracks to form on lower energy paths. Design equations were developed by comparing the predictions of existing shear models using the straps. The most accurate model, a shear friction approach, was then used to develop a retrofit design procedure for use with the straps. To evaluate the …
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Retrofitting of reinforced concrete beams with CFRP straps to enhance shear capacity
… shear cracks to form on lower energy paths. Design equations were developed by comparing the predictions of existing shear models using the straps. The most accurate model, a shear friction approach, was then used to develop a retrofit design procedure for use with the straps. To evaluate the …
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Experimental and Analytical Investigation of Seismic Performance and Retrofit Techniques for Non-Ductile RC Structural Walls
… systems. Despite the interest in retrofitting techniques, critical knowledge gaps remain regarding the reliability and validity of current retrofit design guidelines and procedures, particularly for barbell walls with single sided retrofit strategies, and barbell walls with …
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Multi-hazard performance of bridge timber piles retrofitted with fiber reinforced polymer composites
… in the 1950’s and 60’s using simplified design approaches largely based on convention and empirical data. Since only gravity loads were considered in their original design, many timber pile bridges are deficient by modern standards. Further exacerbating this problem is their age and the …
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Seismic Performance of Unreinforced Masonry Walls Retrofitted with Post-tensioning Tendons
… brittle manner is continually cause for concern. Retrofit of these walls is necessary in order to prevent severe damage and injury to occupants. This paper is concerned with the retrofit of unreinforced masonry (URM) walls in response to out-of-plane loading. A retrofit design was developed and …
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Experimental Program for Fiber Reinforced Polymer Retrofit of Reinforced Concrete Diaphragms
… fiber reinforced polymer (FRP) composites to retrofit deficient diaphragms. However, this application is beyond the scope of current FRP-related design documents, including ACI PRC-440.2R-17 "Guide for the Design and Construction of Externally bonded FRP Systems for Strengthening Concrete …
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Computer Simulation and Optimization of the NOx Abatement System at the Radford Facility and Army Ammunition Plant
… and a kinetic model for the SCR. We explore retrofit options using this combined model and propose process improvements. We end this work with observations of the entire project in the form of conclusions and recommendations for improving the operation of the NOx abatement system through …
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Performance-based seismic retrofit (PBSR) methodology for multi-story buildings with full-scale experimental validation
… of existing buildings. Many older buildings were designed prior to the implementation of modern seismic design codes. Although building codes have clearly evolved, the problem is still unresolved for older buildings that are code-deficient such as soft-story wood-frame buildings. Many retrofit …
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Seismic assessment and strengthening of monumental masonry structures, with a particular focus on churches [Valutazione della vulnerabilità sismica e strategie di miglioramento per strutture monumentali in muratura, con particolare attenzione alle chiese]
… per la progettazione degli interventi di retrofit degli elementi secondari vulnerabili. Dopo una revisione critica delle procedure disponibili in letteratura per la valutazione sismica delle chiese URM, la tesi assume come caso studio la Chiesa di Nostra Signora delle Grazie e Sant’Egidio …