This thesis examines the pre-design documentation from the renovation of three historic theaters located in Detroit, Michigan. Two theaters hired architectural firms to produce a pre-design document. The third theater utilized a design-build approach to renovation. Interviews were conducted to review the approach and final outcomes. It became evident through the analysis of the documentation and interviews that it was beneficial in the renovation of a historic theater to have a comprehensive predesign process that identifies: the nature of the pre-design document, the nature of the client, the nature of the pre-design team, and the scope of work and time available. It also became apparent that the organizational approach that would apply to most any document for a heritage building should follow the Problem Seeking format of: Form, Function, Time and Economy. Utilizing this format for a pre-design record should yield a document that is concise, comprehensive and flexible.

Essa dissertação apresenta um estudo analítico sobre a obra do arquiteto Louis I. Kahn, desde o ponto de vista da sua qualidade espacial, compreendida esta no modo como ocorre a interação entre espaço e usuário. Foram selecionados três edifícios como estudos de caso capazes de representar a síntese evolutiva da concepção de espaço ao longo da obra de Kahn, os quais foram submetidos a uma análise empírica baseada na experiência espacial do observador em movimento, lançando mão de um conjunto de ferramentas no assim denominado método do observador. Os edifícios estudados viabilizam o desenvolvimento de análises que abrangem desde as primeiras obras de Kahn, na década de 1930, até o seu falecimento, em 1974. A análise realizada registra o desempenho dos edifícios em termos de sua legibilidade e funcionalidade, compreendidas como qualidades inerentes ao espaço e ao modo como este condiciona a experiência do usuário, relacionandoas à concepção espacial do edifício. Procura-se ampliar a compreensão dos resultados obtidos à luz da evolução da obra teórica do autor, traçando relações de causa e efeito entre esta e os fenômenos registrados na realidade concreta dos edifícios. O trabalho busca ainda ampliar a compreensão da relação da obra de Kahn com o contexto da produção arquitetônica de sua época, investigando as influências que recebe e as contribuições que oferece, especialmente no que tange à continuidade da arquitetura moderna. / The present dissertation is as an analytical study about the work of architect Louis I. Kahn, focusing on its spatial quality, as funded in the interaction between space and people in motion. Three buildings were selected as case studies in order to capture the evolutionary synthesis of space conception happened during Kahn’s career. Each building was submitted to an empirical scrutiny based upon the spatial experience of a moving observer, using a set of tools named as the “method of the observer”. The buildings investigated are put in relation with other Kahn’s buildings, so allowing the development of an analytical discourse embracing since his first works, in the 1930’s, until his death, in 1974. The analysis registers the performance of the buildings in terms of their legibility and their functionality, both understood as qualities inherent to space and the way they shape the user’s experience, so relating them to the building’s spatial conception. The dissertation intends to enlarge the understanding of the findings by considering the evolution of Kahn’s theoretical work, so bringing cause-effect connections between theory and the registered phenomena in the concrete reality of buildings. Eventually, this study aims to enlarge the understanding of the link between Kahn’s work and the architectural environment of the time, so exploring the influences he received and contributions he gave, especially concerning the evolution of modern architecture.

Essa dissertação apresenta um estudo analítico sobre a obra do arquiteto Louis I. Kahn, desde o ponto de vista da sua qualidade espacial, compreendida esta no modo como ocorre a interação entre espaço e usuário. Foram selecionados três edifícios como estudos de caso capazes de representar a síntese evolutiva da concepção de espaço ao longo da obra de Kahn, os quais foram submetidos a uma análise empírica baseada na experiência espacial do observador em movimento, lançando mão de um conjunto de ferramentas no assim denominado método do observador. Os edifícios estudados viabilizam o desenvolvimento de análises que abrangem desde as primeiras obras de Kahn, na década de 1930, até o seu falecimento, em 1974. A análise realizada registra o desempenho dos edifícios em termos de sua legibilidade e funcionalidade, compreendidas como qualidades inerentes ao espaço e ao modo como este condiciona a experiência do usuário, relacionandoas à concepção espacial do edifício. Procura-se ampliar a compreensão dos resultados obtidos à luz da evolução da obra teórica do autor, traçando relações de causa e efeito entre esta e os fenômenos registrados na realidade concreta dos edifícios. O trabalho busca ainda ampliar a compreensão da relação da obra de Kahn com o contexto da produção arquitetônica de sua época, investigando as influências que recebe e as contribuições que oferece, especialmente no que tange à continuidade da arquitetura moderna. / The present dissertation is as an analytical study about the work of architect Louis I. Kahn, focusing on its spatial quality, as funded in the interaction between space and people in motion. Three buildings were selected as case studies in order to capture the evolutionary synthesis of space conception happened during Kahn’s career. Each building was submitted to an empirical scrutiny based upon the spatial experience of a moving observer, using a set of tools named as the “method of the observer”. The buildings investigated are put in relation with other Kahn’s buildings, so allowing the development of an analytical discourse embracing since his first works, in the 1930’s, until his death, in 1974. The analysis registers the performance of the buildings in terms of their legibility and their functionality, both understood as qualities inherent to space and the way they shape the user’s experience, so relating them to the building’s spatial conception. The dissertation intends to enlarge the understanding of the findings by considering the evolution of Kahn’s theoretical work, so bringing cause-effect connections between theory and the registered phenomena in the concrete reality of buildings. Eventually, this study aims to enlarge the understanding of the link between Kahn’s work and the architectural environment of the time, so exploring the influences he received and contributions he gave, especially concerning the evolution of modern architecture.

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This thesis confronts the possibility of an architecture which limits and reveals, freedom for a way to live, for the activities of man which are vital to a good life. An architecture which is investigated and projected through making. Architecture Separates and makes Distinct, while finding meaningful connection. The work of drawing here attempts to project an architecture which is vital to man, by providing a connection to the activities of Man, in which the spirit of their beginning is recaptured and renewed through a reimagining of the Institutions of Man. Where a sense of Wonder is imperative, and the sense of the eternal in architecture is cultivated. One where a renewal is possible and sense of the cosmos is more evident. On the Threshold of 'Where the desire to express meets the possible' (Kahn) using architectural form. Awareness What is the form? Beginning with the room / Master of Architecture

The effect of individual and combined zirconium and manganese additions have been compared for an AA2198 6 mm thick sheet in T351 temper regarding their influence primarily on recrystallisation resistance and secondly on fracture toughness and overageing resistance. A complete characterisation of the dispersoid distributions was carried out for a deeper understanding of the effects of the Al3Zr and Al20Cu2Mn3 particles, involving studying their formation from the as-cast and homogenised stage.The most important finding in this work was the lower recrystallisation resistance in the alloy containing 0.1 wt%Zr + 0.3 wt%Mn compared to that containing only 0.1 wt%Zr. This result was rather unexpected, if one considers the opposite microsegregation patterns of Zr and Mn during casting, which leads to dispersoids occupying the majority of the grains’ volume and minimising dispersoid-free zones that could be potential sites for nucleation of recrystallisation. The other two alloys with dispersoid additions 0.05 wt%Zr + 0.3 wt%Mn and 0.4 wt%Mn, were partially and fully recrystallised respectively in the rolled T351 condition.Equally important in this work, was the observation that the opposite microsegregation trend of Zr and Mn sufficed to restrict grain growth in unrecrystallised areas. The 0.1Zr-0.3Mn alloy exhibited the lowest grain size of all alloys, both in the T351 temper and after annealing at 535oC for up to 144 hours. The reason for this was the combined action of Al20Cu2Mn3 dispersoids and Mn solute in the regions where the Zr concentration was low (i.e. near the grain boundaries), which offered additional pinning pressure to those areas compared to the 0.1Zr alloy.The lower recrystallisation resistance of the 0.1Zr-0.3Mn alloy was explained on the grounds of two main factors. The first was the lower subgrain size and hence stored energy within bands of Al20Cu2Mn3 dispersoids, which increased the driving force for recrystallisation in these regions. The second was the interaction between Zr and Mn that led to a decrease in the Al3Zr number density and pinning pressure. Since Zr was the dominant dispersoid family in terms of inhibiting recrystallisation, inevitably this alloy became more prone to recrystallisation. The Al3Zr pinning pressure was found to be much lower especially within bands of Al20Cu2Mn3 dispersoids. The detrimental effect of the Mn addition on the Al3Zr distribution was proven not to result from the dissolution of Zr within Mn-containing phases, and several other phases, at the grain interior and also in grain boundaries. The observed effect could not be precisely explained at this stage.Concerning mechanical properties, the 0.1Zr alloy exhibited the best combination of properties in the Kahn tear tests for fracture toughness. Further, it had a higher overageing resistance compared to the 0.1Zr-0.3Mn alloy.As an overall conclusion from this work, considering all the studied properties here that are essential for damage tolerant applications, the addition of 0.1 wt%Zr to the AA2198 6 mm thick sheet was found to be superior to that of the combined addition of 0.1 wt%Zr + 0.3 wt%Mn.

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