Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7755
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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 TechnologyThe 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.Doctoral Thesis An Evaluation Methodology for Assessing Artificial Lighting Quality in Architecture: the Case of Apikam(Izmir Institute of Technology, 2007) Kutlu, Hilmi Gökhan; Günaydın, Hüsnü Murat; Günaydın, Hüsnü Murat; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of TechnologyThe aim of this dissertation is to design a qualitative evaluation methodology for artificial lighting. There is a problem in the general characteristics of lighting industry, deriving from its technical vocabulary which is mainly based on quantitative parameters, values, and systems which in some ways are neglecting the main ingredient of architecture: the user. The evaluation methodology that is subject of this dissertation was considered as a qualitative approach to lighting quality. The study benefited from the knowledge of environmental psychology, concerning the effect of lighting on behaviors and tried to integrate it to the process of assessing lighting quality. The methodology depends on data collection by various means such as surveys, measurements, and computer simulations. To test the qualitative evaluation methodology, a case study was designed in the exhibition hall of the Ahmet Piritina City Archive and Museum (APIKAM) in zmir. The evaluation methodology was successfully operated and made a detailed evaluation possible on the two lighting systems in the exhibition hall of APIKAM. Both lighting systems failed in functional aspects, because of the high intensity of light they produce, the emission of UV and IR wavelengths, and glare problems. They are simply not appropriate for the selected environment, where organic . based materials are exhibited. Recessed fluorescent lighting system failed in physiological aspects as it triggers less arousal than halogen spotlighting system. Both lighting systems have failed in attention scale under psychological aspects, because none of them supply continuity in the order of visual clues that match with the sequential order of the exhibition. For aesthetic and environmental judgments, the results of the survey showed that halogen lighting system was the preferred one by the subjects. For the sub-part of feelings, recessed fluorescent lighting systems failed, because it influenced generally negative feelings, while positive feelings are generally influenced by halogen spotlighting system.Master Thesis Passive Solar Desing Strategies for Buildings: a Case Study on Improvement of an Existing Residential Building's Thermal Performance by Passive Solar Design Tools(Izmir Institute of Technology, 2003) Bilgiç, Serkan; Günaydın, Hüsnü Murat; Günaydın, Hüsnü Murat; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of TechnologyThis thesis investigates the potentials of the use of Passive Solar Design strategies in existing low-rise residential buildings in the context of energy-efficient building design. Among the ways of developing energy-efficient building design, there are mainly active and passive systems to consider and the thesis focuses on passive ones which require integration of architectural characteristics and energy-efficiency strategies, which can likely be cost-effective and thermally comfortable as a result of that integration.In order to achieve the objective of the study, a methodology has been developed. Fist a thorough literature survey is conducted. Then examples related to subject are investigated. Finally an existing residential building is selected and analysed as the case study. Current thermal performance and improved thermal performance of this building are analysed by the help of a software called Energy-10. Results of both original and improved projects are interpreted accordingly.In buildings, Passive Solar Design strategies can provide fundamental comfort conditions related to heating, cooling for thermal and natural lighting for visual comfort or help building.s conventional mechanical systems achieve these conditions requiring less amount of energy. Some of the Passive Solar Desgin strategies are seem in traditional architecture from harsh cold to hot humid climate, they have been in harmony with their environment and provide comfort conditions adjusting the outdoor climatic features by climatic design strategies and they are called as climate-responsive buildings. Solar orientation, solar apertures, thermal mass, solar chimneys, wind captures, lattice brise-soleils or mushrabiyas are the Passive Solar Design elements which have been used in traditional buildings, now abandoned, running by means of natural air currents.To achieve a low-energy building, thermal insulation ought to be considered as the main energy-efficiency feature. Turkish thermal insulation standarts .TS 825. is deficient for designing low-energy buildings and there is no regulations that make the designers feel the desire to utilize low-energy concepts for their designs. Besides, the building.s morphological organisation should be involved with respect to climatic and environmental data. One of the most important criterion in designing an energy-efficient building is incoprating properties of microclimate of the site that the building is to be placed. Using environmental (climatic, geographic, etc.) data well in building designs can lead to energy efficiency. Solar geometry, latitude, altitude, wind patterns, vegetation, hills and neighbor buildings are the determinants of microclimate of a site.The findings of the study indicate that with the energy-efficiency design strategies by passive solar components having the additional cost of about 9% of the total building cost, it is possible to save the total annual energy used in this specific residential building by 18%. There are three types of energy need for the space conditioning and visual comfort (i. e., heating, cooling and lighting), the maximum energy saving is achieved in heating energy use by 61% decrease, lighting energy use is also decreased by 40%. However, in cooling energy need, there is an increase of 34%. This amount is overshadowed by passive solar gains in other energy savings (i. e., heating and lighting) and when the cooling strategies of the building (i. e., natural ventilation and stack effect ventilation) are considered, the building might be said to perform well in terms of thermaly in annual operation.Doctoral Thesis A Model for Assesing Project Management Maturity Level of Architectural Design Offices (arch-Pmm)(Izmir Institute of Technology, 2007) Beset, Doğan Arda; Günaydın, Hüsnü Murat; Günaydın, Hüsnü Murat; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of TechnologyThe aim of this dissertation is to develop a model to assess .The Project Management Maturity Level of an Architectural Design Office. (Arch-PMM). The purpose of ARCH-PMM is to develop an environment for productive and efficient design conditions. By increasing the levels of ARCH-PMM, architectural design office will create opportunity to focus on its concerns for high quality architectural design process. To determine whether Arch-PMM assessment methodology is working properly, a semi structured survey is conducted with selected architectural design offices. This study is the first attempt that focuses on architectural design offices. PM practices and processes. A 5 leveled PM Maturity Model is developed to assess architectural design offices. current PM Maturity level. Maturity levels are assessed vis a semi-structured survey. 71 Members of the Association of Turkish Independent Architects (ATIA)participated to semi-structured survey to validate the model. A list of demographical questions was asked to draw the demographical picture of the architectural design offices. Both, maturity levels and demographical data are analyzed. The results of the assessment provide the necessary information for the architects to improve their PM processes and activities. Project Integration Management was highly mature among the other function areas and it.s followed by Project Scope Management. The least matured function area was the Project Risk Management. High correlation values between the number of staff and all PM function areas are also observed. Yearly income level and overall maturity level of the architectural design offices are found to be related at correlation high levels (r.0.73). The well defined structure of architectural design process seems to support project management culture and have potentials of high project management maturity levels.