Master Degree / Yüksek Lisans Tezleri

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End date: 2009Department: search.filters.department.Thesis (Master)--İzmir Institute of Technology, Architecture

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Now showing 1 - 10 of 43
  • Master Thesis
    Managing the Risk of Contractor Failure
    (Izmir Institute of Technology, 2009) Yağmuroğlu, Zeynep; Günaydın, Hüsnü Murat; Günaydın, Hüsnü Murat; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    The topic of contractor failure has become a major research domain since the beginning of the 1980s. Construction is a risky business with many features like long period of time, complicated process, financial intensity, environment and dynamic organizational structure. The aim of this thesis is to find out the factors effecting contractor failure. In the first phase contractor failure ratio for public procurement is found by investigating the data of the Turkish Ministry of Public Works and Settlement between the years 1999 and 2006. It is found that 10.5% of the public projects end in construction default. The second phase of the study involves a questionnaire survey to find out why construction companies fail in Turkey. The first part of the questionnaire includes the determinants used by Dun and Bradstreet as the causes of failure classified as organizational, environmental, and performance factors. The second part of the questionnaire includes questions about the organizational structure of the company. It is found that the most effective causes of contractor failure are receivable difficulties, insufficient capital, lack of managerial experience, lack of business knowledge, and family problems. It is observed that ego problems, removing performance barriers, monitoring of performance, adaptation to modern work models, and clarified directions are found as major problem areas for the organizational structure of the company. Key Words: Risk Management, Construction Industry, Contractor, Failures.
  • Master Thesis
    Inflatable Pillow System as a Glass Substitute in Terms of Building Envelope
    (Izmir Institute of Technology, 2003) Candemir, Kadri Uygar; Çıkış, Şeniz; Çıkış, Şeniz; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    In the line with the increasing energy demand, there have been many investigations related with the conservation of energy used in buildings. The systems and materials used in buildings have an important role in consumption of energy. Transparent materials and the systems occupies transparent materials contributes this consumption in positive and negative way due to their design and properties. Nevertheless, the transparent materials used in buildings as glazing have importance in order to increase comfort, decrease cost and environmental harm.This study aims to investigate a contemporary construction system; ETFE foil pillow system, which is also known as, Inflatable Pillow System made of ETFE Foil. In the scope of the study, pneumatic pillow system investigated in detail and its performance evaluated due to environmental control criteria, which can be compared with other conventional glass glazing products. The study also involves cost analysis and brief knowledge about contemporary cases that have been completely or partially constructed with this system. The increase in the amount of transparent surfaces in contemporary buildings, pointed out that the conventional glazing system are no more appropriate. Therefore, in specific cases, usage of conventional glass glazing systems results as a cost increase and loss of comfort. The alternatives of the conventional glazing systems don.t have appropriate performance or don.t meet the need of the consumer. Inflatable ETFE foil pillows have better optical properties than glass glazing systems. Generally, thermal properties of this system equal to the advanced double-glazing. Light and heat transmission values vary by changing the foil type and number of layer. Low sound reduction index can be an obstacle or a chance for designers that should be given attention in design phase. The pillow system that relatively provides fire and earthquake protection is also lightweight and flexible. Thus, includes many criteria that are expected in contemporary constructions. The inflatable pillow system made of ETFE foil can be considered as a safe construction method due to mechanical properties of the system and the membrane material that is used as pillows. System reduces operational and maintenance cost for the building. Considerable amount of expenses for lighting and heating can also be reduced by the usage of the pillow system. The lightweight nature of the pillow system affects the construction of the whole building, which also results as a cost reduction.Pillow system is commonly used for greenhouses and botanical gardens and also used for sports and leisure halls as well as institutions ands museums. Addition to its usage as a skylight or façade cover, pillow system can be used as a total envelope that covers the whole construction underneath.As a result, this study investigates ETFE foil pillows and their environmental control properties against conventional glass glazing systems. The results are evaluated in the line with the information gained. The advantages and disadvantages of the system as a glazing are given in detail. Although it.s not expected that ETFE pillow system totally be replaced with the conventional glass glazing system, it constitutes an alternative glazing system in specific cases.Keywords: pillow system, pneumatic membrane, glazing, ETFE foil, glass, fluoropolymer, environmental control criteria.
  • Master Thesis
    Colour Design of Exterior Surfaces as an Expression of Architectural Thought
    (Izmir Institute of Technology, 2001) Kaynak Bayık, Ahenk; Erdoğdu Erkarslan, Özlem; Erkarslan, Özlem; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    Based on the postulation of the architectural end products communicate with the context by means of their exterior surfaces, this study claims that colour as a design concept is one of the main elements in expressing the architectural thought through out the products' surfaces. Being in a universe where human beings identify the three dimensionality with their perceptions, surface becomes one of the main concepts in identifying and communicating with the environment which they live in. The identification and communication of an object exposes itself through the way which it have been created. This exposition can be the structural and physical properties of the object where as it can be a semantic reflection of its designers' thoughts and personal expressions. The architect utilises the surfaces of the architectural end-products as a canvas in order to reflect their architectural thoughts. However, apart from the other objects, architects' canvases is three dimensional and they are two sided as inner and exterior surfaces. The architectural product's inner surface can be considered as the bordering surface of the designed space. On the other hand, the exterior surface should be considered as the inner skin of the environment.Within this thesis the components which visualises the thoughts of the designer, as the exterior facades of the building becomes the surfaces of environmental borders, these components will be studied as a part of this design process. Since colour is an important concept of the design process, it will be emphasised within its exterior surface application and its design notions. Especially, in the developing countries colour concept usually comes to the fore just as an esthetical component on the surfaces of the architectural products and can not go further than being a dye which is chosen during the last stage of the construction process. In these circumstances, colour as a surface property becomes one of the main reasons of the visual decay in the cityscapes. In this respect, this thesis does not only point out that colour is one of the main components of the design process but also indicates that colour is an inherent part of the expression of the architectural thought on the exterior surfaces of the architectural design objects which should be considered in relating with the characteristics of the environment. Keywords: Surface, Architectural Surface, Exterior Surface, Environmental Skin, Colour, Colour Perception, Functional Colour, Surface Colour, Colour in Architecture.
  • Master Thesis
    The Reflections of Modernization in Turkey on the Architectural Artifacts of Izmir Culturepark Between 1930-1950
    (Izmir Institute of Technology, 2000) Pöğün, Yüksel; Eyüce, Emine Özen; Eyüce, Özen; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    This study aims to analyze the movements of modern architecture following the foundation of the Turkish Republic, through the Culturepark in izmir. The analyses will cover the period between 1930 and 1950, starting with the foundation of the Turkish Republic and covering the initial planning phase of the izmir Fair and Culturepark idea.The modernisation and Westernization trends in architecture in Turkey during the specified period are observed in the izmir Culturepark. The political ideology, involving the attributes of the single party system, and the prevailing economical conditions, reflecting the state socialism approach, had important influence on the changing understanding in architectural expression. These reflections concern both the inclusion of the Culturepark in the urban design of izmir and the temporary pavilion buildings designed and constructed for the izmir International Fair. These characteristics make the izmir Fair different from comparable InternationalFairs of the World and give a unique identity: The International Fair in izmir of Turkey. Furthermore, in addition to providing a medium to display the technological advancements of the time, like other similar fairs, the izmir International Fair has been aimed to be a demonstration of the political, social, or economicpower of a nation, that has just conquerred the war independence. The objective of the Fair was to show the world and the citizens of Turkey, the determination of the young Turkish Republic in modernisation through reforms.Analyzing the form and design characteristics of architectural artifacts in the izmir Culturepark will reflect the existing architectural understanding of the period as well as providing insights relating to future developments.
  • Master Thesis
    Architectural Reflections of the Political Thresholds During Interwar Years (1914-1945)
    (Izmir Institute of Technology, 1999) Emir, Özgür Deniz; Eyüce, Emine Özen; Eyüce, Özen; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    This thesis claims that political power and ideology have the ability to transform the building forms of architecture and that power uses architecture as the ideological symbols of the regime in the interactive relationship of 'Architecture and Politics'. The study examines this relationship in Russia, Germany, Italy and Turkey which are experiencing political thresholds during the' Interwar Years' (1914-1945). The architectural reflections of political thresholds have been discussed through architectural trends, styles, built environment and urbanism. Formal and conceptual analyses and readings have been performed in order to determine the architectural transformations and variations that are parallel to political developments, architectural trends before and after the political thresholds have been analyzed comparatively. The concepts that exist similarly both in political ideologies and architectural end-products have been studied with the aim of finding the interaction between 'Architecture and Politics'. These analyses have led to a conclusion that political interference, transforms architectural trends due to its ideologies; monumentality, grandeur, axiality, symmetry order and hierarchy as a result exist in the created architectural language due to this political interference.
  • Master Thesis
    A Study on Technological Expression in Architecture
    (Izmir Institute of Technology, 1998) Yılmaz, Ebru; Eyüce, Ahmet; Yılmaz, Ebru; Eyüce, Ahmet; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    Within the scope of this study, while questioning the relations between technology and architecture, their effects on human life has also been analyzed with all due aspects pertaining to the formation of the architectural end-product. Its role in the process of architectural design is parallel to this relationship.In this study, the idea which is aimed to achieve is that technology which was once a part of an artisanal production, has been taken up as a problem of modernization in the development of industrialization. The study which aims at demonstrating this alterations, tries to question the ways of seeking a tectonically sensitive dimension in architecture in the age of information including a series of comparative analysis.Within the scope of this study, while putting forward the spatial characteristics of high-tech architecture as a follower of a constructive tradition, building technology of the last decade in Turkey has been included in the discussion.The discussion has been enriched by conceptual definitions in order to determine the terminology of the subject. In addition to the retrospective overviews, architectural concepts of the eras have been presented.The findings of the study has been approved that the technical knowledge today is not limited as the knowledge of classical crafts technique, but it should be the rationalization of both the technical and the traditional. Most of the high-tech designs today use a kind of craft technique based on the machine production. In addition, the structural elements accomplished for the sake of visual impact ate not "technological", but "scenographic" and "representational" as a matter of tectonic expression.Keywords: philosophy of technology, modern age, tectonics, information age, hightech, architectural design approaches.
  • Master Thesis
    Transformation in Architectural Drawing:a Study on the Representation of Space During the Renaissance and Avant-Grade
    (Izmir Institute of Technology, 2000) Duruk. R. Kıvılcım; Eyüce, Emine Özen; Eyüce, Özen; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    This study presents a critical look on the architectural drawing, including its reflections and more complex realities behind it. The transformations in architectural drawing as a language of thought have been analysed with the help of two eminent periods; the Renaissance and the Avant-garde. These periods excelled with the representation of their space perception as the most valuable periods in the history of architectural drawing. To gain an accurate evaluation during the study, a contextual reconstruction of the selected periods have been necessary. This "reconstruction" includes the position of the architect, the design methodologies, the role of drawing. Perspective and axonometry drawings are studied as pioneering tools to express the architect's abstract creation, and his ideologies on architectural space in the history of architectural drawing. Keywords: Architectural representation, architectural drawing, space abstract reduction.
  • Master Thesis
    The Concept of Equilibrium and Its Effects of Change From Static To Dynamic on Architectural End-Products
    (Izmir Institute of Technology, 1999) İnceköse, Ülkü; İnceköse, Ülkü; Eyüce, Emine Özen; Eyüce, Özen; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    All of the objectslbuildings on the earth can stand due to their structural orders.Standing of a structural order without suffering any damage (broken down, collapsing ... ) is the result of their state of equilibrium. The most important factor effecting the state of equilibrium of any structural order is the force of gravity.Differantiation in the structural orders formed under this stable effect can be explained by the change in the concept of equilibrium. Therefore, analysing the change in architectural and engineering end-products could only be done by understanding the change in the concept of equilibrium.Scientific developments are the basic factors causing the changes in the concept of equilibrium. Reflections of these developments on concrete products is both in the types of load transfer of structural order and in visual expression of order.Consequently, in the scope of the thesis, depending on developments in the science reflections of the change in the concept of equilibrium on concrete products is tried to be explained by structural and geometrical analses. Expression of these analyses are made through the relationship between equilibrium and movement. It is concluded that the change in the structural orders basing on an acceptance of basic physics that "an object is either stable or movable "; is from structures having no motion to structures having any kind of motion (having tendency to move and/or moving). In other words, it can be said that, this change is from immobile structures having whole connection with the ground, to structures trying to remove from the ground.At the end, in today, it is possible to discuss about solutions having different equilibrium orders that is seen/will be seen basing on scientific developments.Generally it is possible to classify these solutions as solutions that can be expressed by different geometrical orders or solutions towards to be independent from the force of gravity.in the light of these determinations the aim of the thesis is to determine changes in the concept of equilibrium and to analyse their effects on structural end-products and to give some clues about their future effects.Keywords: Structural equilibrium, structural balance, gravity, geometry, energy, structural order.
  • Master Thesis
    A Prediction Model for Daylighting Illuminance for Office Buildings
    (Izmir Institute of Technology, 2008) Binol, Selcen; Kazanasmaz, Zehra Tuğçe; Kazanasmaz, Zehra Tuğçe; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    Daylight is a primary light source for the office buildings where a comfortable and an efficient working environment should be provided mostly during day time. Evidence that daylight is desirable can be found in research as well as in observations of human behavior and the arrangement of office space. A prediction model was then developed to determine daylight illuminance for the office buildings by using Artificial Neural Networks (ANNs). A field study was performed to collect illuminance data for four months in the subject building of the Faculty of Architecture in .zmir Institute of technology. The study then involved the weather data obtained from the local Weather Station and building parameters from the architectural drawings. A three-layer ANNs model of feed-forward type was constructed by utilizing these parameters. Input variables were date, hour, outdoor temperature, solar radiation, humidity, UV Index, UV dose, distance to windows, number of windows, orientation of rooms, floor identification, room dimensions and point identification. Illuminance was used as the output variable. The first 80 of the data sets were used for training and the remaining 20 for testing the model. Microsoft Excel Solver used simplex optimization method for the optimal weights. Results showed that the prediction power of the model was almost 97.8%. Thus the model was successful within the sample measurements. NeuroSolutions Software performed the sensitivity analysis of the model. On the top of daylight consideration, this model can supply beneficial inputs in designing stage and in daylighting performance assessment of buildings by making predictions and comparisons. Investigation about this subject can be able to support the office buildings. having intended daylighting comfort conditions.
  • Master Thesis
    Retrofitting Existing Mass Housing for Energy Efficincy: a Case Study in Gaziemir Emlank Bank Housing Area, Izmir, Turkey
    (Izmir Institute of Technology, 2008) Yıldız, Yusuf; Durmuş Arsan, Zeynep; Durmuş Arsan, Zeynep; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    Energy consumption in the extant residential building stock of Turkey is excessive owing to an inadequate regulative framework regarding energy-efficient retrofitting, application deficiency and failures in heating insulation detailing regulated by TS 825 Thermal Insulation in Buildings. Mechanical systems through the operation period of buildings are out of inspection and occupant profile pays attention to size rather than the quality of construction. In the framework of research concerning harmonization with the EU, the building regulations of Turkey have been adapted to the EU Directives promoting energy efficiency and reduction of energy demand in existing buildings. The Turkish Energy Efficiency Law, launched in 2007 in this framework, is the most noteworthy step. In the light of retrofitted housing examples from 11 EU countries, the thesis presents effective and case-specific retrofitting scenarios for a selected residential block in Gaziemir Emlak Bank Mass Housing Area in Izmir, Turkey. The objective is to draw attention to the enormous potential for reducing energy consumption in existing mass housing areas through implementation of energy-efficient retrofitting applications. The thesis discusses scenarios to decrease the energy demand for heating and evaluates the effects of predefined scenarios on cooling loads of selected apartment block. The building energy analysis software, Ecotect v5.50, has been used for the assessment of heating and cooling energy loads based on the current and improved conditions of the building. The thesis demonstrates that it is possible to save almost half of the annual energy consumption of the residential block in Gaziemir Emlak Bank Mass Housing Area by applying appropriate retrofitting scenarios.