Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7755
Browse
30 results
Search Results
Master Thesis Assessment of Wood Laminated Material for Housing Production(Izmir Institute of Technology, 2019) Balkan, Selçuk; İnceköse, ÜlküToday, laminated wood material is used in different types of structures. In many countries such as our country, as well as countries where this usage is intense, laminated wood material is not preferred in housing production yet. Although it seems that reinforced concrete structures have replaced wooden structures today, environmentally sensitive approaches expressed with concepts such as sustainability, ecological balance and repeatability have enabled the reuse of wood material. In this study, the properties of laminated wood technology, which is predicted to be an alternative technology to conventional construction technologies, are evaluated. With this assessment, laminated wood technology could be an alternative structure production technology in our country. At the beginning of the study, wood materials, wood damaging factors, composite wood materials, the use of wood in residential production and the use of laminated wood in residential production were examined under four main headings. The properties of wood materials and laminated wood materials were examined in detail and the methods, advantages and disadvantages of these materials were determined. This study is detailed on the structure of JZ House which was designed and built by architect Serhat AKBAY in Antalya with laminated wood technology. The laminated wooden parts produced for the building were examined based on scientific data on the design process, static resistance of the building, fire resistance, sustainability, environmental and human health contributions. With the evaluation, it is aimed to increase the preference of wooden structures constructed with developing wood technology.Master Thesis Corporate Social Responsibility in the Construction Industry(Izmir Institute of Technology, 2019) Doğan, Ceren; Kale, SerdarThe concept of “Corporate Social Responsibility” is one of the most discussed and debated issues in literature. It argues that firms should behave responsibly to the environment, society, and all stakeholders. Construction firms have been relatively slow, compared to firms operating in other industries, in adopting “Corporate Social Responsibility (CSR)” practices. Yet it is a topical managerial issue for construction firms. The main objective of the research present in this thesis is to explore the concept of Corporate Social Responsibility practices in the context of construction industry. The sample used in this thesis is composed of 205 construction firms listed in ENR‟s 2018 Top 250 International Contractors. CSR discourses of construction firms are explored by using content analysis of CSR reports, financial reports, corporate web pages and other web sources. The research findings suggest that CSR practices/discourses used in the construction industry can be categorized into nine major groups. The most common CSR practices/discourses used in construction industry focuses on customer issues, environmental issues and labour issues. Research results also highlight that nationality of the firms, continent in which construction firms located and the ranking of construction firms in ENR list have significant impact on the use of CSR practices/discourse.Master Thesis Testing Room and Window Design Parameters for Daylight Performance According To Breeam Assessment Criteria: Cases of London and Izmir(Izmir Institute of Technology, 2019) Sönmez, İrem; Kazanasmaz, TuğçeDaylight affects occupants' visual performance in the indoor environment. The amount of daylight determines the quality of the interior. If daylighting is controlled properly, it provides comfortable and healthy spaces for the occupants. It is the primary light source of interior and it saves energy decreasing the use of artificial lighting in the interior. Because of these reasons, daylight performance has a significant role in environmental assessment tools. As BREEAM is the first environmental assessment tool in the world which is published in the UK, it has been the subject matter in this thesis. BREEAM has 'Daylight' section in 'Health and Wellbeing' category. The illuminance value determines whether to get the credits or not in this category. It has been known that there are architectural parameters such as window size and surface reflectance that affect the illuminance value of the interiors. Each color combination of floor, wall, and ceiling results in a significant average reflectance value. Thus, the purpose of this thesis is to test the whole impact of these room and window design parameters on daylight performance according to BREEAM(universities, colleges, and higher education-occupied spaces) criteria with the cases of London and İzmir. The daylight performance simulation models of the reference rooms generated with four material alternatives were built in RELUX, under clear and overcast sky conditions. Simulations run for London and İzmir covering solstice and equinox days. Findings were discussed in the view of daylighting criteria of BREEAM. In general, daylight criteria of BREEAM which is based on conditions of London (UK) were found to be suitable and applicable for cases in İzmir.Master Thesis Process-Centered Modeling Experience From Architect's Perspective: a Case Study in a Residential Building in Izmir(Izmir Institute of Technology, 2019) Gülmez Raafat, Rahşan Aytül; Durmuş Arsan, ZeynepPredicting current energy demand and future energy consumption of buildings is the challenging experience for architects. Although there are various dynamic simulation tools that enable them to calculate building energy performance, the complexity of tools poses problems to model, understand process-centered simulation studies and interpret the results. This thesis aims to present, test, verify and criticize the modeling, simulation and calibration processes of residential building from architect's perspective. One of the effective ways to overcome global warming problem is by immediate involvement of architects into energy modeling process. Therefore, the study criticizes the role of architect in process-centered modeling. Process-centered modeling is tested with existing residential building conditioned with air-source heat pump in İzmir-Turkey. Indoor and outdoor environment were monitored from July 2009 to June 2010. Digital model of the building was created by using DesignBuilder dynamic modelling tool, and calibrated for three different periods of heating, cooling and transition. The problems faced during modeling and simulation based on professional knowledge of the architect and simulation tool was exemplified. Finally, the survey was conducted to verify the role of architect tool users in modeling process. Consequently, case study exemplified how the architect conducts a processcentered modeling, and survey showed how his/her modelling experience and knowledge is essential for right management of design process. Mechanical systems modeling is still challenging issue requiring knowledge and experience for architect users..Master Thesis Simultaneous Improvement in Visual and Acoustic Performance by Modifying Common Design Components in Lecture Halls(Izmir Institute of Technology, 2017) Öztürk, Yasemin; Kazanasmaz, Zehra TuğçeProviding indoor comfort conditions at optimum level in educational buildings increases the concentration, the desire for learning and occupants’ performance. The learning environment’s appeal for students and teachers are mostly derived from their visual and aural sensations. So, properly-designed lighting and acoustic conditions have become an important concern. Daylighting is a component of energy saving strategy. It provides visual performance and comfort to support executing tasks, additionally to achieve aesthetic and occupants’ appraisal of the physical environment. However, too high background noise and low intelligibility lead to disturbance in hearing and understanding. Such problems mainly cause the lack of concentration, which disturb occupants’ satisfaction with the indoor acoustic environment. Both students and lecturers raise their voices to communicate better when there is poor reverberation and clarity. Yet, measures and precautions to improve one aspect are not enough. Designers/researchers can establish an integrated approach to deal with the aspects of daylighting and acoustics under common design criteria; since, one design alternative developed to improve sound distribution modifies the visual performance either in an effective way or in an unfavorable way. It is necessary to propose common design alternatives, such as ceiling geometry, seating layout and material combination to conclude simultaneous enhancement in visual and acoustic performance. To achieve that, this thesis presents analyses of DIALux and ODEON models of a lecture hall proposing design component choices for ceiling geometry, seating layout, and material combinations. Simulation findings direct out attention to how to design a lecture hall in an integrated approach.Master Thesis Energy and Environmental Performance Based Decision Support Process for Early Design Stage of Residential Buildings(İzmir Institute of Technology, 2016) Gerçek, Mümine; Durmuş Arsan, ZeynepDeficiencies in systematic approaches for design decision support to increase energy and environmental performance of buildings in Turkey are projected as the major problem of this study. Rare usage of computational methods for evaluating and improving building performance, need for informational assistance in design, as well as lack of interaction between systematic knowledge and building practice are the secondary problems. This thesis mainly aims to test usability of the decision support process assisting architects in early design stages of residential buildings. Assessing the uncertainties in building performance caused by design parameters and climate change, in terms of determining the most significant parameters on annual energy consumption for heating, cooling and operational CO2 emissions in hot humid climatic region of Turkey is the significant objective of the study. The relation between input parameters and building performance indicators is examined by the uncertainty and global sensitivity analyses for a residential building in İzmir, Turkey. The process is supported by usability testing held with the architect in practice. The results indicate that, the sensitivity between input and output parameters changes according to the projected weather conditions and different floors of the building. The SHGC of windows on south-west, north-east facades, and window U values are the most effective parameters on energy and environmental performance. The proposed decision support process is approved to be applicable for early design stages of the selected building, and helps creating consciousness about the importance of systematic design decision approach for the building professional.Master Thesis An Inquiry Into the Personalization of Space in the Case of Turkish-German Immigrants(Izmir Institute of Technology, 2015) Çıracı Yücel, Naciye; Doğan, FehmiHome is a special place we attach personal importance. The main focus of this study is the different and complementary meanings of “homes” that Turkish migrant families in Germany construct. One immigrant family is chosen as a case to investigate the relationship between person and place, the spatial practices at home and spatial characteristics of homes. The family migrated from Turkey to Germany in the early 1970s for economic reasons. The family still lives in Frankfurt, Germany, and they just retired. After retirement, they decided to buy a home in their homeland in Ankara and a summerhouse in Kuşadası, a seaside town close to Izmir. It was expected that the family had constructed different daily experience and homely environments in these homes. The study investigates the key points of the personalization of place and place attachment through observation and interviews. The study has three specific foci. First, family members are interviewed to investigate the individual and collective meanings of home that contribute to their sense of identity. Second, the physical and social dimensions of place and the context within which they are located were observed to discuss the role of physical environment in self-realization and how individuals construct such physical environments. Third, everyday life experiences of the family were inquired.Master Thesis Design performance evaluation: A data envelopment analysis model(Izmir Institute of Technology, 2015) Yavuz, Mina; Doğan, Sevgi ZeynepDesign performance evaluation has been the center of interest for many social actors since the antique period dating back to Aristoteles and Vitruvius. Numerous performance evaluation models have been developed for assessing design value since then. In this thesis, a Data Envelopment Analysis model is proposed for design performance evaluation in order to support the decision making process of the stakeholders in the built environment. The proposed model is based on the Design Quality Indicator (DQI), Life Cycle Cost Analysis (LCCA) and Data Envelopment Analysis (DEA) methods. DQI is a measure of design quality that measures functionality, build quality and impact assessment of the projects. LCCA is a measure for calculating the life cycle cost (LCC) of the projects. DEA is an efficiency measurement system that depends on the relative performance of the assessed units. In this thesis, a DEA model based on LCCA and DQI is developed for design performance evaluation. LCC values are used as the inputs and DQI values are used as the outputs. Accordingly, the design performance efficiency is conceptualized as the value of design calculated by the ratio of the DQI to the LCC. The developed model is applied to a sample of housing projects in İzmir. Efficient coded design values and relatively inefficient coded design values are determined. Input and output oriented strategies are then developed and discussed for improvement purposes. The proposed model constitutes an effective decision support tool for a thorough evaluation of the design performance of the given projects.Master Thesis Design of a Reconfigurable Deployable Structure for Post Disaster Housing(Izmir Institute of Technology, 2014) Ataer, Fulya; Korkmaz, Koray; Kiper, GökhanIn this thesis, the possibility of constructing reconfigurable deployable structure composed of planar linkage units has been explored. The first part of the thesis is devoted to literature survey on housing recovery. When the current researches on post disaster housing are investigated, it is observed that most of post disaster housing or temporary buildings in the literature are predefined portable, demountable or relocatable buildings. Deployable buildings serve for a single function. A study into the existence of alternative forms of a reconfigurable deployable structure has been done. The conditions for the alternative forms to be a multi-functional building have been derived. Reconfigurable deployable structure presented here is a single degrees-of-freedom (DoF) multi-loop linkage which has more than two configurations. The alternative forms that a linkage is constructed with the same links and connections are called configurations or assembly modes of the linkage. During its motion, the linkage may pass from one assembly mode to another, which is called reconfiguration or assembly mode change. Design and position analysis of the linkage mechanism have been implemented in Microsoft Excel® environment. The link lengths can be varied in this environment and the motion of the structure can be simulated by changing input joint parameters. Four different case studies have been designed in Microsoft Excel®. A reconfigurable deployable structure can be used as a multi-functional shelter or canopy which can take many forms in a few minutes for urgent needs after disasters, military purpose or public needs. Its deployed and retracted (or compact) geometries are explored. As a case study the dimensions of links are presented. Installation process for different functions is explained. The full concept for the structure, from outer covering material to foundation is then detailed. Finally, a sample material cost analysis is performed to determine if the product is financially feasible.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.
- «
- 1 (current)
- 2
- 3
- »
