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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Economic considerations for adaptability in buildings

Manewa, R. M. A. S. January 2012 (has links)
The existing buildings in the UK are not designed to be functionally adaptive to fit a spectrum of purposes. Alternatively, scrapping these buildings and building anew does not appear to be an economically viable and environmentally sustainable solution either. Proactive solutions to respond to future potential changes of use are rare in previous and current building designs, which ultimately make these buildings functionally redundant. At present, curiosity about adaptable buildings is spreading among owners, developers and policy makers; however, no detailed investigation has been undertaken to identify the economic costs and benefits of adaptability in new buildings. Thus, the present endeavour was designed to bridge this gap. The research exploited both case studies and survey designs to explore the answers to the above problem. Two case studies were undertaken to establish that building changes occur over time, as well as to assess their economic implications in the current built environment at both macro and micro levels. Three web-based surveys (WBS) were designed and circulated among quantity surveyors and architects of the 100 leading consultancy practices in the UK to identify both the design and economic aspects of adaptability in buildings. The total numbers of respondents to WBS1, WBS2 and WBS3 were 13, 32 and 42, respectively. In addition, data was collected from semi-structured interviews with two policy makers, two structural engineers, a quantity surveyor and a facilities manager. Unstructured interviews with a senior planner, a project manager, two architects and a services engineer were used to clarify the issues of design and planning for adaptability in buildings. The findings were interwoven to develop a conceptual framework to identify the economic considerations for adaptability in new buildings. Two workshops were undertaken with the industry partners for the Adaptable Futures research project to verify the results obtained from the case studies and to test the usability of the developed conceptual framework. The group members had multi-disciplinary backgrounds of architecture, quantity surveying and structural engineering, allowing a robust grounding for verification. The results contribute to the body of knowledge in two ways. Firstly, the developed conceptual framework identifies the economic considerations (costs and benefits) for change of use in buildings within the wider context of adaptability over the lifecycle aspects. This will assist owners/clients and developers in their economic decisions for designing new buildings for potential adaptations. Secondly, the research findings strengthen the reliability of the existing body of knowledge whilst confirming the urgent need for designing new buildings towards potential adaptations. In addition, the findings strongly emphasise plan depth and floor to ceiling height as the most influential design parameters for building change of use, the details of which are not highlighted in the previous literature.
12

De l'usage du concept de contradiction en phase amont de la conception architecturale : incidences de la théorie TRIZ sur le programme architectural : une étude empirique / On the use of the concept of contradiction in early phases of architectural design : contributions of TRIZ theory to architectural problem statement : an empirical study

Najari, Amirabbas 12 November 2015 (has links)
Cette thèse, consacrée à la représentation des problèmes et contradictions architecturaux dans la phase amont de la conception, s’inscrit dans la problématique de l’agentivité potentielle de cette phase pour concevoir des concepts et des solutions innovantes. En tant qu’une recherche interdisciplinaire, cette thèse a pour ambition de contribuer aux recherches visant l’appropriation de parts de connaissances élaborées par la TRIZ dans le savoir architectural. Elle se développe donc en transversalité en examinant la possibilité d’appliquer IDM-TRIZ, son ontologie et son formalisme de représentation de contradiction dans les phases amont de la conception architecturale. L’objectif principal est d’évaluer les apports du concept de contradiction de la théorie TRIZ à l’énoncé des problèmes et des contradictions du projet architectural. Si l’accent est mis sur cet objectif, l’évaluation des apports des techniques et outils de la résolution de contradiction de TRIZ en préconception architecturale constitue l’objectif secondaire de cette étude. Ainsi, la contribution scientifique espérée de notre recherche consiste à examiner des apports éventuels de la notion de contradiction au sens TRIZ à la fois comme stratégie conceptuelle en architecture guidant la recherche et la structuration des informations et comme modèle d’interprétation et de représentation des éléments fondamentaux de la conception, à savoir les objectifs, les contraintes et les solutions en phase amont du processus de conception. Un projet réel a été choisi comme l’objet de l’étude empirique effectuée dans le cadre de la thèse. Deux résultats principaux de cette étude sont a) un ensemble des objectifs, des contraintes et des scénarios sous forme de contradiction à travers le Graphe Problèmes – Solution Partielles ; b) un ensemble de dix concepts de solution pour une contradiction du projet liée au problème identifié comme le problème clé. Ces résultats ont été évalués à travers une série d’entretiens semi-directifs avec treize architectes. Ces résultats ainsi que deux questionnaires L’évaluation des résultats montre I) la possibilité d’énoncer les objectifs, les contraintes et les propositions du projet sous forme de contradiction à travers le Graphe Problèmes – Solution Partielles (avec 92.3 % de réponse positive pour ceux qui concernent la fonction et la forme ; et 85 % pour ceux concernant l’économie et le temps); II) la contribution significative du Graphe de Problèmes aux qualités de la clarté des énoncés de problèmes; à la traçabilité des problèmes et à la l’intégralité de la présentation de l’Espace de problèmes ; III) que l’ensemble de techniques et d’outils de TRIZ pourrait contribuer à la génération des concepts de solution en phase amont de la conception architecturale. Le taux d’affirmation varie selon le concept évalué ; cependant, ils attestent la pertinence (avec une moyenne de 58 % d’affirmation) et l’intérêt (avec une moyenne de 67 % d’affirmation) des concepts.La conclusion de la thèse porte sur l’intérêt et l’inconvénient de l’usage du concept de contradiction de TRIZ comme stratégie conceptuelle de la construction de l’Espace de problèmes architecturaux en phase amont de la conception architecturale. De même, elle présente certaines réflexions sur les limites de TRIZ pour une application architecturale. Une discussion est menée sur les développements requis dans IDM-TRIZ pour mieux s’adapter à la pratique architecturale et mieux s’intégrer aux recherches courantes en programmation architecturale. En mettant la contribution de la thèse dans le champ plus large de l’appropriation de parts de connaissances élaborées par la TRIZ dans le savoir architectural, la conclusion se termine par la proposition de certaines pistes d’exploration qui désignent une perspective pour la recherche ultérieure sur les apports potentiels de la TRIZ en conception architecturale. / This thesis is devoted to the representation of architectural problems and contradictions in the early phase of architectural design process. It also focuses on its potential agency to generate new concepts and innovative solutions. This thesis aims to contribute to the research on knowledge transfer from TRIZ to architectural design methodologies. It is a cross-disciplinary study on the applicability of IDM-TRIZ, its ontology and formalism in the early phases of an architectural design. The main objective of this dissertation is to evaluate the contributions of the concept of contradiction of the TRIZ theory to problem and contradiction statement in architectural projects. The secondary objective of this study is to evaluate the contribution of the TRIZ techniques and their tools to architectural contradiction solving. Thereby, the expected scientific contributions of this research is to examine the concept of contradiction as a conceptual strategy for seeking and structuring the information about a project and as a model for interpretation and representation of the objectives, constraints, and alternative solutions in the early phases of the architectural design process.In our empirical study, the IDM-TRIZ method is applied to an architectural program of a real project and has produced two results: A) a structured set of the objectives, constraints, requirements and the alternative solutions of this program presented as contradiction by using Problem Graph, B) a set of ten concepts of solution to resolve one of the contradictions related to the problem identified as the core problem of the project. These results were evaluated through a series of semi-structured interviews. This evaluation shows that I) it is possible to represent the objectives, constraints, and alternative solutions of an architectural project as contradiction by the Problem Graph (with 92.3% positive response for the elements concerning form and function, and 85% for those concerning economy and time), II) the contribution of the Problem Graph to the program qualities, such as clarity of problem statement; traceability of problems and the entirety of the Problems space, is significant, and, III) the TRIZ techniques and their tools could contribute to concept generation in the early phases of architectural designs. The evaluation is different for each concept, but it attests the relevance of the concepts (with an average of 58%) and their interest (with an average of 67%). The findings of this thesis discusses the advantages and the disadvantages of the use of TRIZ concept of contradiction as a conceptual strategy for building the Problem space in the early phases of architectural designs. The conclusion presents some thoughts on TRIZ limitations for an architectural endeavor as well as some perspectives for further research aiming integrating the TRIZ into current research in architectural design. Also, some further developments in the IDM-TRIZ which allows better adapting to architectural practice are discussed.

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