Architecture / Mimarlık
Permanent URI for this collectionhttps://hdl.handle.net/11147/24
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Article Citation - WoS: 14Citation - Scopus: 15Photon Mapping in Image-Based Visual Comfort Assessments With Bsdf Models of High Resolution(Taylor and Francis Ltd., 2019) Grobe, Lars OliverData-driven models replicate the irregular Bidirectional Scattering Distribution Functions (BSDFs) of optically Complex Fenestration Systems in daylight simulation. RADIANCE employs the tensor tree to store the BSDF at high directional resolution. Its application in backward ray-tracing is however challenging, since the density of stochastic samples must match the model resolution. BSDF proxy and peak extraction address this problem, but are limited to cases when either the fenestration geometry, or the shape and direction of the transmission peak are known. Photon Mapping is proposed to efficiently sample arbitrary BSDFs from the known sun direction. The existing implementation in RADIANCE is extended to account for light sources and their reflections in the field of view, that are of particular importance for visual comfort assessments. The method achieves a high degree of accordance with ray-tracing, and reduces simulation times by approximate to 95% with data-driven models of high resolution.Article Citation - WoS: 1Citation - Scopus: 1Dovecotes in Kayabağ Village: an Assessment of Landscape and Architectural Characteristics(Taylor and Francis Ltd., 2020) İnceköse, ÜlküThe dovecotes of Kayseri-Gesi stand out as unique examples of indigenous architecture of Anatolia. They are considered significant elements of the rural landscape. The purpose of the construction, the constructional and spatial characteristics peculiar to these dovecotes, make them an important element of global cultural and architectural heritage. Dovecotes that are built upon rocks, with mere building stones provided from the same rocks, look like a shaped form of the topography itself. This is very much to do with the geological features of the Cappadocia Region where Kayseri is located. In terms of construction techniques and spatial organization, the dramatic differences in the dovecotes’ underground and aboveground parts make them even more outstanding. This research is based on the field studies conducted in the dovecotes of Kayabağ. The landscape was studied in all aspects and each dovecote is studied for its placement, topographical interactions, plan and section typologies, materiality and construction techniques. The structural problems stemmed from the geological features and the deterioration caused by external factors are taken into consideration. The study concludes with an overall approach for preservation, sustainability and conservation process of the heritage landscape of Dovecotes [Güvercinlik] of Kayabağ.Article Citation - WoS: 12Citation - Scopus: 12An Evaluation Methodology Proposal for Building Envelopes Containing Phase Change Materials: the Case of a Flat Roof in Turkey’s Climate Zones(Taylor and Francis Ltd., 2017) Tokuç, Ayça; Yesügey, Sadık Cengiz; Başaran, TahsinPhase change materials (PCMs) can be used to enhance the thermal energy storage capacity of a building element to improve indoor thermal comfort conditions and decrease energy usage, yet these effects need to be carefully analysed to achieve the desired benefits. This paper proposes an evaluation methodology for building envelopes: first, a numerical computational fluid dynamics model is validated by experimental work; then, time-dependent simulations are used to analyse monthly energy requirements and heat flux. A sample flat roof is evaluated in terms of required cooling load with and without PCM in Turkey’s climate zones. Graphical phase change representations and heat flux results were used to evaluate the cooling load reduction in addition to the effects of PCM type and PCM amount and the necessity for night cooling. In conclusion, the methodology is flexible and can be utilized to evaluate the building element for various parameters.Article Citation - WoS: 6Citation - Scopus: 9Reconstruction of Archaeological Sites: Principles Practice and Evaluation(Taylor and Francis Ltd., 2012) Yaka Çetin, Funda; İpekoğlu, Başak; Laroche, DidierThe reconstruction works at archaeological sites need to be approached with caution to prevent disturbing any surviving evidence. This study aims to develop criteria for the evaluation of reconstructions at archaeological sites. The criteria have been developed through review of current international and national conservation charters to help improve reconstruction proposals. These criteria are determined considering the remain scale and the site scale. Accuracy of the reconstruction, avoidance of physical damage, compatibility of materials, distinguishability of the interventions, availability of the interventions for future applications, and reversibility are the criteria concerning the remain scale; limits of the intervention, retainability of the original characteristics of the site, and perception of the reconstruction are the criteria concerning the site scale. These criteria are applied to the reconstruction works realized at the West Stoa of Agora, zmir, Turkey during 1930s, which had to be dismissed and reimplemented in 2000s. The recent reconstruction was applied with compatible materials; the interventions did not damage the original materials and they are distinguishable. This study of the reconstruction presents the latest architectural information, provides a basis for future studies, and is reversible. The reconstructed structure does not falsify the original characteristics, but enables increased perception of the site.Article Citation - WoS: 7Citation - Scopus: 11Architectural Design Students' Explorations Through Conceptual Diagrams(Taylor and Francis Ltd., 2013) Doğan, FehmiViews of creativity highlight the importance of incubation or the significance of sketching as a means of seeing emergent properties. Both views put design students at a disadvantage. This study investigates the strengths and weaknesses of an alternative approach to design education, in which students were asked to develop a design idea through conceptual diagrams. This study investigates how conceptual diagrams might help architectural students to see the relationships between concepts and space and coordinate their dual development through conceptual diagrams. The study presents the development of the ideas of 13 second-year architectural students. Students' logbooks, together with their midterm and final review presentations, were studied to determine whether students drew any conceptual diagrams, whether they were instrumental in spatial organization, and how they introduced changes during the design process. The findings showed that this particular design education approach helped students start the design process and stay focused throughout the design process.Article Citation - WoS: 75Citation - Scopus: 95A Review of Planar Scissor Structural Mechanisms: Geometric Principles and Design Methods(Taylor and Francis Ltd., 2011) Maden, Feray; Korkmaz, Koray; Akgün, YenalThis study deals with a review of planar scissor structural mechanisms (SSMs) and reports on how they can be easily transformed from a stowed to a deployed configuration. These mechanisms have an important transformation capacity of their extension and rotation properties, and many examples have been proposed that vary in size, type and geometry. Although there are many studies dealing with designing new planar or spatial SSMs and their calculation methods, there is no systematic study demonstrating the basic typologies, geometric principles, design rules and constraints of such SSMs. Further, current calculation methods are based on the inductive approach in which the dimension of one scissor unit (SU) is given, but the span of the whole structure is found later according to the number of SUs that are used to assemble the structure. However, this approach is not convenient for architectural applications, because it requires a deductive approach in which the dimensions and required number of SUs are calculated according to defined span length. On the basis of this concept, this article, first, analyses the geometric design of SSMs systematically in terms of their possible configurations and then develops trigonometric calculation methods for different types of SSMs, using a deductive approach.Article Citation - WoS: 16Citation - Scopus: 17Design of a 2-Dof 8r Linkage for Transformable Hypar Structure(Taylor and Francis Ltd., 2012) Korkmaz, Koray; Akgün, Yenal; Maden, FerayDouble curved geometries including hyperbolicparaboloids (hypars) have become a trend in contemporary architecture. However, most of the constructed architectural examples of the hypars are static and cannot offer any form variability. In this paper, a 2-DOF 8R linkage mechanism is introduced to buildtransformable hypar structures. It is inspired from the basic design principles of Bennett linkage. By its distinctive connection details and additional links, this novel mechanism can change its form fromplanar geometries to various hypars. The paper begins with the brief summary of the applications of hypar structures in architecture. Secondly, main principles and deficiencies of the Bennett linkage are presented. According to these deficiencies, structural synthesis of the novel mechanism is considered. Finally, advantages and potential uses of the proposed novel mechanism are explained. © 2012 Copyright Taylor and Francis Group, LLC.Article Citation - WoS: 3Citation - Scopus: 3The Impact of Planimetric Configuration on Structurally Damaged Residential Buildings(Taylor and Francis Ltd., 2009) Kazanasmaz, Zehra TuğçeThis study was conducted to determine a significant relationship between planimetric configuration and vulnerability of hazardous buildings located in seismic zones by developing design and construction efficiency indicators. Case study examples were chosen from residential buildings in Bolu, Düzce and Kaynasli in Turkey, which were damaged by the 1999 earthquakes. Utilizing field survey drawings, efficiency quotients; compactness quotients; construction efficiency ratios; aspect ratios and height-to-base ratios were defined as planimetric configuration indicators. The significant relationship between these aspects and the damage level of buildings were determined through statistical analyses and scatter charts. Planimetric configuration - including building geometry, cantilever projections and layout of columns -was reviewed according to the Turkish Earthquake Code. Findings revealed certain dependencies for efficiency ratios, which would satisfactorily predict the seismic vulnerability of buildings based on planimetric configuration. Researchers in the field of architecture who are engaged in earthquake-resistant design may use the general methodology. In addition, architects and structural engineers can use this approach presented here to evaluate their design.Article Citation - WoS: 10Citation - Scopus: 16Conceptualization by Visual and Verbal Representations: an Experience in an Architectural Design Studio(Taylor and Francis Ltd., 2010) Çıkış, Şeniz; Ek, Fatma İpekIn current educational practices within the discipline of architecture, the systematic use of conceptualization within the design process has not yet been extensively developed and applied. Though utilizing concepts within the design process has been discussed hitherto by educators and scholars, the conventional education system in architectural design may prevent its proper application in the studio process. Furthermore, because conceptualization describes an activity that has peculiarly visual and verbal dimensions, the coordinated use of drawing and language as the representation systems also refers to the main character of the design process. In these respects, by offering a systematic alternative for conceptualization within the design process, this study presents a new educational pattern. The study was implemented during the sixth semester of the architectural design studio and includes an examination of the relationships and functions of drawing and language as the very media of conceptualization within the discipline of architecture.Article Citation - Scopus: 4Postwar Visions of Apocalypse and Architectural Culture: the Architectural Review's Turn To Ecology(Taylor and Francis Ltd., 2008) Erten, ErdemIn the post-war era, Hubert de Cronin Hastings, the owner and editor (until 1971) of the English periodical The Architectural Review (AR), saw mankind facing its demise through its own scientific creation, the atom bomb. Hastings's editorial policies for the AR were very much influenced by the prospect of impending nuclear disaster during the Cold War and the decline of the British Empire in a world divided into the mandates of two superpowers. While the post-war period brought mistrust of the promise of emancipation through technology and science for those like Hastings, for others there was all the more reason to believe in these ideals with the dawning of a consumerist society and the development of pop culture. Within this cultural context AR aimed to develop and sustain an environmental culture as a holistic strategy in order to respond to planning problems. Targeting not only architects but local and national authorities as well as the 'man on the street', AR launched a series of campaigns that aimed to increase environmental awareness against post-war industrial transformation and the rise of consumerism. After the decline of the affluent consumer society of the 1960s and the devaluation of the pound in 1967, AR revamped its structure and contents and launched its 'Manplan' campaign, reacting against economic crisis and environmental decline. Taking issue with 'Non-Plan: An Experiment in Freedom' written by Reyner Banham, Peter Hall, Paul Barker and Cedric Price in New Society in 1969, 'Manplan' demanded centralization and comprehensive planning against decentralization and dispersal as a means of planning democracy. According to the editors, scientific progress enjoined to consumer culture and ever-expanding economic growth brought a ruthless exploitation of resources as well as destruction of the natural landscape. Before the journal itself went into economic crisis and Hastings left the editorial board, the first issue of the pioneering journal The Ecologist themed 'A Blueprint for Survival' was brought on the board's agenda by Hastings. In the light of global warming and increasing rate of environmental disasters today, the history of AR's editorial campaigns deserve renewed interest. This paper focuses on the neo-romantic ideology that underlay the post-war editorial policies of AR motivated by approaching environmental disaster within the continuum of a quarter century.