WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7150

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Language: search.filters.language.enPublisher: search.filters.publisher.Middle East Technical University

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Now showing 1 - 6 of 6
  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Scale-Model and Simulation-Based Assessments for Design Alternatives of Daylight Redirecting Systems for Side-Lighting in an Educational Design Room
    (Middle East Technical University, 2017) Grobe, Lars Oliver; Hancı Geçit, Burcu; Sevinç, Zeynep; Altınkaya, Gülce; Aksakarya, Gizem; Ergin, Meltem; Öztürk, Yasemin; Kazanasmaz, Zehra Tuğçe
    Daylight has been proven to have positive effects on well-being, comfort and performance of occupants in buildings; it specifically increases learning performance in educational buildings. Side-lighting from one direction leads to unbalanced and insufficient illuminance, especially in large and deep spaces. A design studio at the Izmir Institute of Technology (IZTECH) in Urla, Turkey, has been chosen as an example of a space in such a context. Its geometrical attributes has taken to be the baseline. First, four daylight redirecting systems are applied on its 1/15 scale model to understand and compare their redirection behavior visually. Second, measurements on the scale model are taken to compare the daylight illuminance distributions. Third, to assess the overall performance in the sunny climate, illuminance and luminance maps for photorealistic visualization are calculated in monthly steps over one year. For efficient calculation of the time-steps to be considered, the daylight coefficient method has been applied. Though light ducts are found to be effective for high sun angles, in summer and equinoxes; very low illuminance in entire space make them fail in winter. Light shelves are determined to be the most convenient ones for this space, since they provided sufficient, uniform and high illuminance in equinoxes and winter.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 2
    The Masonry Techniques of a Historical Bridge in Hypokremnos (i̇çmeler)
    (Middle East Technical University, 2017) Uygun Gençer, Funda; Turan, Mine
    This study focuses on characteristics of a historical bridge in Içmeler, Urla, Izmir. Urla, a historical settlement on the west of Izmir, has been part of a commercial network between Karaburun, çesme and Anatolia throughout history. The aim is to understand the construction technique and material usage in Hypokremnos Bridge and identify a possible sequence of the original construction. The linear bridge was constructed by using masonry technique. It has three openings with various sizes and supported with rounded arches. The bridge wall is crowned with a road way making a crest at its center a inclined façade. This study is composed of four phases; documentation, analysis of construction technique and material usage, historical evaluation and restitution. In the first phase, by using Tgi3D Su Photoscan 2.13 and Trimble SketchUp 2013 software, three dimensional model was prepared. Visual analysis of construction technique and material usage was carried out and the mortar sample from the bridge was investigated in the conservation laboratory in the second phase. Three dimensional manual photogrammetric documentation of the historical bridge has provided the advantage of conceiving many constructional details. This condensed observation of constructional features supported with comparative study on historical bridges in Anatolia has revealed that the elements and composition of the studied bridge presents Roman characteristics, but the masonry techniques used recall those of Turkish period. The detailed data about structural system gathered from different locations of the bridge was used for the production of reconstitution of system detail. Reconstitution model of the bridge was produced by using reconstitution of system detail. To identify construction phases of the bridge, literature survey was carried out. According to structural elements and composition of the bridge, it is thought to be constructred in Roman Period, however, both the randomness in the composition of the rough cut lime stones used in the outer shells of the bridge wall, and lack of system in the form and color composition of the cut sand stones in the arches and the sea façade may be interpreted as an end result of a comprehensive repair on total reconstruction in the Turkish period.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 13
    Critical Success Factors of Partnering in the Building Design Process
    (Middle East Technical University, 2015) Doğan, Sevgi Zeynep; Kılıç Çalğıcı, Pınar; Arditi, David; Günaydın, Hüseyin Murat
    The construction industry is vertically fragmented because of the inherent nature of construction projects, which require planning, design, letting, construction, and operation in distinct phases (Fellows and Liu, 2012; Fong and Lung, 2007). The construction industry is also horizontally fragmented because of the general tendency of participants to work independently in all phases of the project (Fellows and Liu, 2012; Saram and Ahmed, 2001). Given the increasing number of construction projects in the current global environment, geographical fragmentation is caused by project participants that are frequently geographically separated. The construction industry is also temporally fragmented, as the phases of construction projects diverge over an estimated time period (Luck, 1996). According to Evbuomwan and Anumba (1998), the fragmentation in the industry results in costly engineering changes and design iterations, time and cost increases, poor communication between project participants, neglect of the application of sustainability principles throughout the life cycle of the building, and inadequate coordination and integration of the various participants. The root cause of much of these problems encountered in the management of building projects can be traced back to the design phase.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 5
    Classifications for Planimetric Efficiency of Nursing Unit Floors
    (Middle East Technical University, 2012) Kazanasmaz, Zehra Tuğçe; Tayfur, Gökmen
    Bu çalışma, Türkiye’deki 15 Devlet Hastanesine ait ‘Hasta Bakım Üniteleri’ verilerini kullanarak, mimarlık alanında oldukça yeni olan Bulanık Mantık metodu ile verimlilik tahmini yapmakta; bu çerçevede bulanık mantık algoritması geliştirerek, Türkiye’de örnek olarak seçilen kamu hastanelerinin plan (planimetric) tasarım verimliliği için sınıflandırmalar geliştirmeye çalışmaktadır. Hasta bakım ve tedavi ünitelerinin kat planlarından hasta kullanım alanları ve dolaşım alanları elde edilerek bulanık mantık modeli alt kümeleri için üyelik fonksiyonları oluşturulmuştur. ‘Mamdanni’ kural sistemi, kuralların ağırlıklarını hesaplamada ‘min’ fonksiyonu, ve ‘max’ kompozisyonu ve ‘centroid’ metodu da bulanık işlemcisi için kullanılmıştır. Girdi değişkenleri olarak hasta kullanım alanları ve dolaşım alanları modellenmiştir. Girdi değişkenleri ile çıktı değişkeni olan tasarım verimliliği arasındaki ilişkiler bulanık mantık kuralları ile ortaya çıkarılmıştır. Varolan hasta bakım ünitelerini incelemek için, verimlilik çıktı değerleri modelden elde edilmiştir. Genel tasarım normları, tasarım ölçütleri ve önceki çalışmalar ışığında ve de bu model aracılığıyla verimlilik sınıfları oluşturulmuştur. Modelde test edilen 15 hastane kat planından altısının düşük verimli sınıf içinde, dokuzunun ise orta verimli sınıf içinde olduğu görülmüştür. Hiçbiri güncel standartlara ve gereksinimlere uygun değildir. Bu çalışmada elde edilen modelin faydası, verimlilik sınıflarının sınır değerlerini belirleme yeteneğinde olmasıdır. Hastanelerin karşılaştırılarak incelenmesi için oluşturulan verimlilik sınıflandırılması başarı ile sonuçlanmıştır. Hastane tasarımcıları ve yöneticileri, mevcut hastanelerin değerlendirmesini ve karşılaştırmaları yapabilmek için bu çalışmadan geribildirim yoluyla bilgi edinebilir. Sonuç olarak, ilgili binalar hakkında karar verme aşmasında(örneğin binanın iyileştirme ihtiyacının olup olmadığı, yeni mekanlara gerek duyulup duyulmadığı gibi) bu modelden faydalanabilirler.
  • Article
    Citation - WoS: 2
    Citation - Scopus: 1
    Primary Schools of İzmir (1923-1950)
    (Middle East Technical University, 2012) Kul, Fatma Nurşen
    This study aims to identify primary school buildings constructed inIzmir between the years 1923 and 1950 and understand them withinthe national context and its reflection on the local. For this purpose, thenational primary education system and school construction policies wereresearched, and their local reflections were discussed through the specificcase of Izmir. The results of this research demonstrate that the national policies,instigating the extension of school buildings throughout the country, weresuccessfully implemented in Izmir, and contrary to numerous other cities,new school buildings were constructed homogenously not only in thecity and sub-province centers but also in the villages. This meant that, awide spectrum of schools differing in their scales and qualities, rangingfrom multi-spaced city and sub-province schools built in highly populatedareas to single-spaced village schools constructed in settlements of lowpopulation levels were built in Izmir. Detailed archival research, sitesurveys and literature reviews showed that 500 new primary schools werebuilt in 1923-1950, 99 of which provided information in more detail in theform of visual and written documents. Based on this data, it was possible toestablish the type of projects that were implemented in Izmir, the designingpersons or institutions, their design criteria and the school constructionprocesses
  • Article
    Citation - WoS: 8
    Citation - Scopus: 10
    Optimization of Product Design Through Quality Function Deployment and Analytical Hierarchy Process: Case Study of a Ceramic Washbasin
    (Middle East Technical University, 2011) Erkarslan, Önder; Yılmaz, Hande
    Quality Function deployment (QFD) is a useful method for optimizing products which can be applied during the design process as well as in the postproduction process for further developments and revisions. This paper aims at examining the applicability of QFD and Analytic Hierarchy Process (AHP) to incorporate customer expectations and design quality into the product through a case study on a ceramic washbasin (1). In the first phase of the study customer needs and satisfaction are surveyed based on the current product design. This data is then merged with a Voice of Engineer (VOE) chart where technical attributes and features corresponding to the items in the Voice of Customer (VOC) are listed. By using the Analytic Hierarchy Process (AHP), the customer needs as well as technical attributes are quantified and prioritized. Quality characteristics are then obtained by the calculation of customer weights according to the level of importance, which were then transformed into measurable technical attributes in the House of Quality (HOQ). Interrelations among customer requirements, technical attributes and planning blocks were put in a matrix in order to get precise evaluations. The findings of this study demonstrate that the application of QFD at an earlier period in the design phase can help to efficiently implement design remediation.