Architecture / Mimarlık

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Now showing 1 - 10 of 134
  • Data Paper
    Citation - WoS: 3
    Citation - Scopus: 4
    Experimental data showing the thermal behavior of a flat roof with phase change material
    (Elsevier, 2015) Tokuç, Ayça; Başaran, Tahsin; Yesügey, Sadık Cengiz
    The selection and configuration of building materials for optimal energy efficiency in a building require some assumptions and models for the thermal behavior of the utilized materials. Although the models for many materials can be considered acceptable for simulation and calculation purposes, the work for modeling the real time behavior of phase change materials is still under development. The data given in this article shows the thermal behavior of a flat roof element with a phase change material (PCM) layer. The temperature and energy given to and taken from the building element are reported. In addition the solid-liquid behavior of the PCM is tracked through images. The resulting thermal behavior of the phase change material is discussed and simulated in [1] A. Tokuç, T. Başaran, S.C. Yesügey, An experimental and numerical investigation on the use of phase change materials in building elements: the case of a flat roof in Istanbul, Build. Energy, vol. 102, 2015, pp. 91-104.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Comparison of Advanced Daylighting Systems To Improve Illuminance and Uniformity Through Simulation Modelling
    (Znack Publishing House, 2014) Kazanasmaz, Zehra Tuğçe; Fırat Örs, Pelin
    Deficiencies in daylighting performance (illuminance and uniformity) of educational facilities may cause health problems, work performance loss and excessive energy consumption. The varying nature of daylight in daily and yearly basis is a strong challenge on that matter. Advanced daylighting systems have been developed to overcome this challenge. Improving the daylighting performance of existing buildings is another difficulty in daylighting design. Daylighting design needs should be carefully considered at the initial design stages of the buildings. So, the aim of this study was to improve the illuminance and uniformity in four selected architectural design studios in Izmir. Measurements of daylight illuminance were conducted in May and June 2012. Simulation models were built in Ecotect/Radiance. To reach the best daylighting performance, simulations were carried out by Desktop Radiance with applying laser cut panels, prismatic panels and light shelves. It is considered that retrofitting efforts after the construction would be inadequate regarding daylighting, unless complying with the standards during the design process.
  • Article
    Citation - Scopus: 2
    Mısır, Etrüsk, Roma: Piranesi ve Bir On Sekizinci Yüzyıl Tartışması
    (Orta Doğu Teknik Üniversitesi, 2008) Ek, Fatma İpek; Şengel, Deniz
    One crucial debate that resonated in eighteenth-century Europe concerned the origins of European architecture whose effects continue to inform present-day notions of the same. Numerous important eighteenth-century works were produced in the context of emergence of the discipline of architectural history. In this architectural, historical, and archaeological framework, Venetian architect and scholar Giovanni Battista Piranesi (1720- 1778) played an important role by his visual and literary works as well as original approach to history. Piranesi developed a history of architecture that was not based on the East/West division and the separation of continents. In opposition to writers like Winckelmann who rooted the origin of Roman architecture in the Greek, he claimed that Roman architecture derived from the Etruscan which found its roots in Egypt. Discussion of roots depended on the eighteenth century on aesthetical theory interpreting Grecian architecture as ‘beautiful’ and Roman -thus Egyptian- as ‘sublime’. It was in this lively intellectual environment that Piranesi searched the origins of Roman -and thus the whole Europeanarchitecture. His works were, however, misinterpreted as being Orientalist by contemporary scholars following Said.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 3
    Çok Fonksiyonlu Form Değiştirebilir Köprü Tasarımı için İki Serbestlikli Strüktürel Mekanizma Önerisi
    (Gazi Üniversitesi, 2017) Gür, Şebnem; Yar, Müjde; Korkmaz, Koray
    Hareketli köprüler ilk zamanlar korunma ihtiyacı ile tasarlanmıştır. Modern zamanlarda ise ulaşımıkolaylaştırmak için geliştirilmeye devam edilmektedir. Sabit köprülerin aksine farklı kullanım senaryolarınıdesteklemeleri sebebiyle tercih edilmektedirler. Bu yazıda mevcut hareketli köprüler kinematik özellikleriaçısından tanıtılmış, hangi kullanım seneryolarını destekledikleri ve eksik kaldıkları yönler açıklanmıştır.Daha sonra güncel bir örnek olan Rolling Bridge'de kullanılmış strüktürel mekanizmanın tasarım prensiplerden yararlanarak, tüm kullanım senaryolarını destekleyen form değiştirebilen köprü için çokdevreli ve iki serbestlikli yeni bir strüktürel mekanizma önerilmiştir. Son olarak mekanizmanın pozisyonanalizi yapılarak Microsoft Excel® ortamında gerçekleştirilen grafik sunulmuştur
  • Article
    Citation - Scopus: 2
    Kırılan Temsiliyet : Libeskind'de Bellek,tarih ve Mimarlık
    (Orta Doğu Teknik Üniversitesi, 2009) Maden, Feray; Şengel, Deniz
    Mimarisini ‘yokluk,’ ‘yitirilmişlik’ ve ‘bellek’ kavramları üzerinden çizgiler, çarpıtılmış açılar, kesişen geometriler ve boşluklar etrafında kurgulayan Daniel Libeskind, çok disiplinli mimarisi ve radikal yaklaşımları ile kuşkusuz mimarlık kuram ve pratiğini etkileyen ustaların başında gelmektedir (1). Bellek ve tarihin ‘izleri’ üzerinde şekillenen projeleri ve çoğunlukla da müze yapıları ile karşımıza çıkan Libeskind, Rönesanstan bu yana süregelen mimarlıkta temsiliyet sorunsalı, mimarî temsil ve temsilin mimarlığı gibi tartışmalara, sergilediği aykırı mimari ile yeni bir yön kazandırmaktadır. Makalenin hedefi, Libeskind’in proje ve çizimleri üzerinden, mimarın tarihi yorumlaması çerçevesinde temsiliyet sorununu irdelemektir. Bu irdeleme, mimarlık ile tarih arasında kurulan ilişki bakımından birbirinden farklılaşan modern ve postmodern dönemler arasında kendisine yeni bir konum bulan Libeskind’in tarih anlayışını bir kez daha gözden geçirerek yorumlamayı amaçlamaktadır. Yazı ayrıca Libeskind mimarisinin, mimarlığın geleneksel temsillerinden farklılaşarak disiplinler arası bir yaklaşımla diğer alanlarla kurduğu ilişkiyi sorgulamayı da hedeflemektedir.
  • Conference Object
    Citation - WoS: 1
    Citation - Scopus: 2
    Computational Design in Distributed Teamwork Using: Digital and Non-Digital Tools in Architectural Design Competitions
    (Education and Research in Computer Aided Architectural Design in Europe, 2019) Erbil Altıntaş, Livanur; Kasalı, Altuğ; Doğan, Fehmi
    This paper reports a case involving computational practices in design process with an aim to understand the role of digital and non-digital tools in the design process. Following an ethnographic approach, we aimed at understanding the nature of the interactions among team participants which are human and non-human in a distributed system. We focused on computational practices in design process and we aimed to understand the role of digital and non-digital tools in the design process. Tools have remarkable role in a distributed system in the sense of propagation of knowledge. It was observed that form exploration by digital tools may not controlled as much as sketching.
  • Conference Object
    Citation - WoS: 1
    Citation - Scopus: 2
    Structural Comparison of Scissor-Hinge Linkages
    (CRC Press, 2019) Maden, Feray; Akgün, Yenal; Yücetürk, Kutay; Aktaş, Engin; Yar Uncu, Müjde; Mitropoulou, C.
    Deployable structures can deploy from a compact to an expanded configuration by changing their sizes. The behaviors of these structures depend on some parameters such as geometric shape, member sizes and kinematic properties. To provide the deployment, not only the arrangements of structural members but also some restrictions must be considered. Moreover, contiguous members of the structures must let the large rotations to provide the transformation between different geometric forms from fully folded to fully deployed configurations. These requirements have an important impact on the fundamental properties of the structures related with structural performance, such as stiffness and strength. In this paper, stiffness of different scissor-hinge linkages are analyzed and compared. These linkages cover the same span with almost the same geometry and have the unit elements with same size and same weight. However, the geometry of unit elements is different from each other. The paper investigates the effect of this difference on the stiffness of whole system. © 2019 Taylor & Francis Group, London.
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 3
    Dynamic Shelter Structure
    (CRC Press, 2019) Maden, Feray; Ölmez, Duhan; Gür, Şebnem; Yar Uncu, Müjde; Mitropoulou, Chara
    Dynamic building envelopes have entered the mainstream practice of architecture in the last decades. Such dynamic systems are capable of changing their geometric configurations repeatedly and reversibly relative to environmental conditions and occupant requirements. Thus, they may offer innovative building solutions by folding, expanding or curling. This study proposes a dynamic shelter structure that provides several shape options in response to the changing needs. In order to generate the shelter structure, first, loop assembly method used for developing the structure is introduced. Then, a parametric model is built in Grasshopper® not only to analyze the geometric properties of the loops and their alternative geometric forms but also to develop a flexible tool allowing changes at topological, geometrical and structural levels. Based on the geometric analysis, the structural mechanism is constructed. Transformation capability and possible configurations are studied. The proposed structure can transform itself into multiple forms (from planar configuration to S-shaped and reversed S-shaped configurations) with single DOF although the existing single DOF scissor structures can deploy between two geometric shapes. © 2019 Taylor & Francis Group, London.
  • Conference Object
    Leed Certification: a Comparison of Contractors' Perspectives
    (Research Publishing Services, 2013) Doğan, Sevgi Zeynep; Günhan, Suat; Gerçek, Bilge; Arditi, David
    The Leadership in Energy and Environmental Design (LEED) certification system for green buildings has been used extensively in the US and has gained increased attention in developing countries as well. The related literature focuses extensively on the perspectives of owners and designers, whereas constructors' role receives less attention. One significant research is based on a survey administered to 22 contractors, who built LEED certified green building projects in the US. The survey inquired about earned LEED credits and best practices in LEED certification process regarding past experiences. The same survey was administered to seven Turkish contractors, who also built LEED certified green buildings in Turkey. The similarities and differences between US and Turkish constructors' perspectives were studied. Both groups stated that the LEED process was slightly difficult or was just straightforward. US contractors needed a lot of additional time for the LEED documentation; Turkish contractors required no extra time. LEED certification system incurred a little additional cost for US contractors; however Turkish contractors mentioned about up to 10% additional project costs. The achieved LEED credits from materials and resources, and indoor environmental quality by the two groups of contractors were highly correlated. Both groups emphasized the inclusion of LEED documentation and specifications in coordination meetings and in subcontracts to streamline the process; and emphasized the early collaboration of the entire project team for earning LEED credits. Copyright © 2013 by Research Publishing Services.
  • Conference Object
    Citation - Scopus: 60
    Evaluation of Gis and Bim Roles for the Information Management of Historical Buildings
    (Copernicus GmbH, 2013) Saygı, Gamze; Agugiaro, G.; Turan, Mine; Remondino, F.
    An architectural heritage object carries heterogeneous and multi-layered information beyond physical characteristics. It requires an integrated representation of various types of information for understanding and management prior to the decision-making process of conservation. This requirement is a twofold manner consisting of representation and management processes. There exists a variety of approaches for representation of heritage objects in digital three-dimensional (3D) environment, but the selection of the appropriate one according to the needs is crucial. On one hand, there have been recently great attempts to adopt Building Information Modeling (BIM) for historical buildings. Nevertheless, the related works in the topic focus mainly on pre-processing of data, such as the integration of born-digital material into a BIM environment and the creation of parametric objects according to historical building characteristics. As the information management of a historical building requires enhanced attribute management and integration of different datasets, further investigation on the BIM capabilities in management terms is crucial. On the other hand, Geographical Information Systems (GIS) have great potentials in exploring spatial relationships, but their potential in 3D representation is still somehow limited. The paper reviews and evaluates the roles of BIM and GIS, highlighting their advantages and disadvantages for integration, retrieval and management of heterogeneous data in the context of historical buildings. © 2013 Copernicus. All rights reserved.