Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Bim Execution Process of Construction Companies for Building Projects(İzmir Institute of Technology, 2016) Gerçek, Bilge; İlal, Mustafa Emre; Günaydın, Hüsnü Murat; Tokdemir, Onur BehzatBuilding Information Modeling (BIM) is an emerging concept in architecture, engineering and construction (AEC) industry promising to replace traditional 2D based construction documentation and management procedures and to reduce rework and cost in project execution. The level of information that could be assigned to building objects in BIM technologies could provide vast amounts of benefits to construction projects throughout projects’ life-cycle. Implementation of BIM, however, requires strategic planning to enable achieving these potential benefits. Industry-wide and organizational implementation guidelines and standards have been published around the world either to encourage organizations to adopt BIM or to present the minimum requirements to be followed where BIM implementation is a statutory obligation. In contrast, BIM implementation and/or deliverables has not been mandated by government or organizations yet in Turkey, therefore organizations which plan to adopt BIM processes have to develop their own implementation plans. The purpose of this study is to provide guidance in BIM implementation for construction companies particularly during the construction phase of the building projects. BIM standards and guidelines, and studies related to BIM implementation have been reviewed and important aspects of implementation have been identified. A case study of BIM implementation at a large construction company in Turkey to conduct quantity takeoff and cost estimation are presented and unique challenges of BIM implementation in Turkish AEC industry are discussed.Master Thesis Managing the Risk of Contractor Failure(Izmir Institute of Technology, 2009) Yağmuroğlu, Zeynep; Günaydın, Hüsnü MuratThe 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 Development of Intelligent Buildings and Their Impacts on Architecture in Turkey(Izmir Institute of Technology, 2002) Zağpus, Selin; Günaydın, Hüsnü MuratRelated to every period.s life conditions the community.s needs show differences. Today.s people giving prior importance to business life and depending on this priority and the incoming intense, active life flow bring up the need of .facilitating life. and again one of the most main problems in today.s life described as energy loss is reduced by designing .energy conscious. buildings. At this point of view, developing technologic and construction sector take on the roles as two important inputs to help design concept. Considerably the technological developments that took place with .Industrial Revolution. started the use of machine power, created new bazaars and new work areas, and brought up the creation of new life styles with itself. With these points, this process came across the new trends in architecture and construction. Spreading use of information technologies, make differences in expectations about daily life standards. As men can adapt the changing needs and obtain maximum suitability, need buildings with minimum cost for usage and upkeep. The main aim of the buildings described as .intelligent buildings. is use of minimum energy and besides to obtain system works and comfort at an optimal level. To be considered as intelligent, building must; With these points, besides the advantages that intelligent buildings bring up, they can cause important problems to take place. With their electrical infrastructure they may cause the inhabitants to be abstracted from the outer life, and with respect the people working in multi-storey buildings have health problems like .building syndrome. or because of the computer aided structure of these buildings .accessibility. problems can occur. These problems come in the first places on the problems rank. In the solutions of the problems occurring by intensive use and by the way increasing demands, at the point architectural solutions become insufficient electro-mechanical systems join. For providing high life standards complete for today and tomorrow.s life, the buildings which are designed bye using series of technological solutions, are composed of the integration of these systems. All these developments, different than the conventional design process, need the information flow with the other science branches -interdisciplinary approach-. A building to be formed as intelligent by .architectural concepts., with a large proportion is related to the .architect.s intelligence.. In these terms architect must be following all new developments in technology. In other ways, intelligent buildings will be the buildings designed by engineers. Nearly in the past ten years, intelligent building applications are also seen in our country. But whether the lack of investigation about the abroad works or these buildings participated in our lives with the unnecessary ambition of consumption, so with these facts intelligent buildings cannot deserve their attribute. To state that a building is totally intelligent, from the design process, the project must be taken up as a total work with the sub-systems providing central supervision and administrating. But the approach in our country sees the sufficiency as a building that owns one of the named systems or any residence full of intelligent house products. Of course these terms are not enough for intelligence. As a result, this work examines the approach to the subject in our country by evaluating sub-systems of intelligent building concept, design criteria, the advantages and disadvantages of these buildings, and the degree of intelligence. Key words: intelligent building, building automation system, office automation system, telecommunications system, information technology, and energy conscious buildings.Master Thesis Engineering Concepts in Industrial Product Desing With a Case Study of Bicycle Desing(01. Izmir Institute of Technology, 2004) Kocabıyık, Elif; Günaydın, Hüsnü Murat; Özcan, A. CanIndustrial product design, as a field of design discipline, borrows concepts and methods from other disciplines, one of which is engineering, in order to develop its own knowledge in research and industry contexts. In the means of strengthening its place among other disciplines, a concentration on .designerly. ways of knowing, thinking and acting should be provided. Therefore, in this study, the intersection between industrial product design field and engineering discipline is searched for revealing the engineering concepts and non-intuitive design methods within intuitive design methods used in industrial product design. Engineering design field is stated, since its being close to industrial product design, and a comparison is made between industrial product design and some engineering fields through their approach to design problems and the tools they use. Engineering design methods are stated and their advantages in design activity are revealed. This study is a part of design systems area, with formal approaches to models of design processes and knowledge. Finally, a case study of bicycles is carried out in order to prove the design approaches and the priorities of engineering and industrial product design on a product.Keywords: industrial product design, design criteria, engineering design, design methods, bicycle.Master Thesis Life Cycle Cost Awareness Among Architects: the Case of Turkey(Izmir Institute of Technology, 2009) Kayaş, Ece; Günaydın, Hüsnü MuratBuilding construction industry considers both construction and life-cycle cost (LCC) of a building as an important success factor for projects. In order to achieve the lowest cost of product, the study of LCC enables comparative cost assessments to be made over a specified period of time; taking into account relevant economic factors in terms of both initial costs and future maintenance and operational costs the latter of which are generally ignored in building industry especially at the design stage. For this research, the methods of LCC such as present worth cost approach and equivalance annual cost approach were evaluated. The objectives of this study are (1) to analyse these LCC analysis methods, in order to identify those that are being employed by architects practising in Turkey and (2) define the life-cycle costing awareness among architects working in building industry and architectural offices in Turkey. For this reason, a questionnaire survey was developed and sent to freelance architects. A total of 114 participants took part in this research. Some results appear that many architects expand LCC calculations in the design process that this condition is really important for LCC. Most of architects use LCC when making investment decisions but they do not take maintenance cost into consideration. The lack of significant input-cost data and lack of experience appears to be the most important problem in this respect. Keywords: Life-Cycle-Costing, Methods, Building Construction, Production-Process oriented approaches, Design process, Architects, Turkey.Master Thesis Political Tactics in Building Construction Industry From the Architects' Perspectives(Izmir Institute of Technology, 2009) Ülkeryıldız, R. Evren; Günaydın, Hüsnü Murat; Günaydın, Hüsnü MuratPolitical behavior in organizations has been the subject of numerous studies. The emergent picture from these studies is that political behavior in organizations is an inevitable part of any human-based activity. Architectural design practice is one of those human-based activities. Political behaviors are inevitable reality of any human based activity. Political behavior can have functional or dysfunctional consequences. The key challenge facing architects is managing political behavior in order to reduce or eliminate dysfunctional consequences of political behavior. Managing political behavior starts with understanding and identifying political tactics used by social actors involved in architectural design practice. The research presented in this thesis builds on this premise. It empirically explores (1) the use of political tactics by primary social actors of any construction project (i.e., clients, main-contractors and subcontractors) (2) communication channel used in send politically motivated messages by social actors and (3) frequency of political tactics used throughout different stages of a construction project. The research findings reveal that political tactics are commonly used in architectural design practice and political tactics are most frequently used by social actors in the construction process. Furthermore, research findings suggest that social actors use oral communication channels rather than written communication channels for sending politically motivated messages, and the main-contractors heavily use political behavior in the architectural design practice. Key words: organizational politics, political tactics, political behavior, architectural design and construction practice in Turkey.Master Thesis 'manufacturing Design for Productivity' :optimization of Assembly Line for Air Conditioning Control Panels(Izmir Institute of Technology, 2006) Çuğ, Özlem; Günaydın, Hüsnü MuratThis thesis investigates .Manufacturing design for productivity. surveying a case study of an assembly line for air conditioning control panels. The main aim is to investigate the possibilities of operational improvement on the production time in a cost-effective manner. The specific objective of this study is to investigate the relationship between manufacturing design and productivity issues. In order to achieve the objective of this study, a methodology has been developed. First a thorough literature survey is conducted. The use of methods engineering in the factory system is explained, then the relationships between analytical techniques of methods engineering are discussed. Then examples related to subject are investigated. Later on, an assembly line is selected as the case study. An ex-assembly is redesigned by using the concepts of methods engineering. Then both cases are analyzed and discussed in terms of their output capacity and manufacturing time. After the analysis of MTM for redesigned assembly line it is observed that we can reduce production cycle time 20 % at the end of this study. And this development project has been chosen for investment. At the end of this project, we increased the production quantity from 600 pcs. to 800 pcs. Because efficiency of workers have increased with the redesigned assembly line, production of the goods of quantity increased 13 % more than originally calculated. The new assembly line is reduce the operators waiting time and increases their efficiency. The ex-assembly line was covering 13,5m² square it reduce to 3,6 m². Finally, because of efficiency and productivity increase of this study, totally we observed 33 % production increase for the same period of time. By the standardization and the elimination of the operations, and reducing the labor cost the factory could increase its competitive strength.Master Thesis Factors Constraining the Development of Professional Project Management in Turkey's Urban Design Practice(Izmir Institute of Technology, 2004) Kılınç, Deniz; Günaydın, Hüsnü MuratProject success is achieved via the obtainment of the product which provides desired quality within definite time and limited resources and with maximum performance. Project management is an occupation which requires utilizing modern management techniques to provide this. Today, project management concepts are utilized in many different fields such as medicine, chemistry, industry.etc. Western countries utilize project management approach in extensive urban design projects aiming especially urban renewal and transformation, too. However, it is not, yet, possible to say that this approach is widely utilized in our country.s urban design practice.This study investigates the perception of project management understanding in Turkey.s urban design practice and the factors constraining the development of professional project management in this field.Master Thesis Design and Thermal Analysis of a Rotating Solar Building(Izmir Institute of Technology, 2005) Karadağ, Çağlar; Günaydın, Hüsnü MuratIn recent years, various rotating buildings such as residential buildings, restaurants and pubs have been designed and constructed. Most of these rotating buildings do not possess passive solar design features or they cannot respond passive solar design principles entirely because the primary design purpose of these rotating buildings is to make all spaces view the landscape as required.Passive solar design is the optimum utilization of architectural peculiarities of a building and appropriate material selection for improving energy efficiency of a building in heating, cooling and natural lighting. While projecting a passive solar building, different factors including building orientation, latitude of the location and climatic properties must be taken into consideration.Although passive solar buildings are superior to conventional buildings in terms of various aspects, they have some deficiencies as well. Despite insulation, largesouthfacing windows which are designed to maximize solar heat gain in winter turn out to be heat loss areas in cold winter nights. They also cause excessive solar heat gain in summer. So as to eliminate such disadvantages of passive solar buildings, direction of buildings can be changed in winter and in summer by rotating them. In this project, a rotating building.s thermal performance is investigated. For doing this, a thorough literature review is carried out. First, passive solar design tools are identified. Second, examples of rotating buildings are analysed. Then, a rotating cafe located at IZTECH Campus . IYTE Cafe - is designed on the basis of passive solar design criteria. The cafe is assumed to be rotating two times a year and performance of the building is compared with a conventional passive solar building by calculating heat gain and heat loss of each building. It is found that, substantial energy savings could be possible through a rotating building. Furthermore, energy savings in summer and in winter conditions are calculated respectively as 14 % and 23 %.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 MuratThis 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.