Conservation and Restoration of Cultural Heritage / Kültür Varlıklarını Koruma ve Onarım
Permanent URI for this collectionhttps://hdl.handle.net/11147/23
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Article Art and Construction Related Qualities of 14th‒15th Century Monuments in a Rural Landscape on the Western Coast of Türkiye(KeAi Communications Co., 2024) Hamamcıoğlu Turan, Mine; Aktaş, Engin; Toköz, Özge DenizThis study aims to contribute to the understanding of the evolution of art and construction in the early settlements established by Turkish communities on the far west Asian coast by focusing on two developed examples in Urla Peninsula. Conventional surveying and evaluation techniques of architectural restoration and civil engineering were utilized. Key findings include the understanding of the hierarchy of rural settlements in the studied landscape: old Çesme the most developed village of peninsula in the 16th century. It was positioned along a valley in distance to coast, but in control of harbor that played significant role in commerce between Europe and Asia. Its mosque and tomb, dated to late 14th – early 15th centuries, used to crown it. Cylindrical minaret tower of mosque, domed tomb tower on a cubical base and squinch in the transition zone of mosque are evidences for Central Asian roots. Usage of local lime stone, re-usage of andesite blocks, framing of the stone blocks with bricks, and pendentive in tomb refer to Roman-Byzantine constructions. The study presents the development of Turkish art and construction on the far west Asian coast in the 14th‒15th centuries. Findings will be a guide for related conservation management in similar contexts. © 2024 The Author(s)Conference Object The Challenges and Advantages of Macro Modeling in Ansys Software for Seismic Vulnerability Assessment of Historic Masonry Structures(National Technical University of Athens, 2023) Demir, Hatice Ayşegül; Yücetürk, Kutay; Aktaş, Engin; Hamamcıoğlu Turan, MineThis study aims at creating an advancement guideline for a software which can be used for seismic vulnerability assessment of historic masonry structures by revealing the results of an experience related to the macro modeling of a historic masonry building. The case study structure is Bergama Bedesten (15th-16th centuries) located in Bergama, Izmir, Turkey. ANSYS software is used for the Finite Element Modeling of the structure. The seismicity at its location is determined and the structural response under lateral loads is obtained together with the dynamic characteristics. Mesh design, component creation according to the used material change in structural elements, contact surface identification, the arrangement of the stress scales, and result interpretation are realized. For these stages, the challenges are discussed with the solutions. The advantageous aspects of the software are explained. For the challenges, in mesh design, the ineffectiveness of cartesian method for some elements was detected and tetrahedrons method was chosen. In contact surface identification, the overlapping portions of structural components could not be detected by the software exactly, so the manual surface separation was realized. In the stress level interpretation, the lack of assignment for material limit strength values to the analysis scale was experienced and the addition of limit values was carried out. The scale also needs manual arrangement for the increase of interval numbers of stress values to emphasize vulnerable zones. This flexibility of scale to be arranged can be seen as an advantage, as well. The 3d section and axonometric view creation provide the presentation of stress changes at inner and outer surfaces of the structure which is another positive side. © 2023 COMPDYN Proceedings. All rights reservedReview Citation - WoS: 8Citation - Scopus: 11A Literature Review on the Management of Underwater Cultural Heritage(Elsevier, 2023) Bulut, Nihan; Yüceer, HülyaManaging cultural heritage is difficult, even when presented with many opportunities. The management of underwater cultural heritage (UCH) expands these challenges, as issues such as mapping, monitoring, access, presentation, and ownership can become more complex. This article reviews the existing literature on theoretical research and various case studies in order to establish common themes on the management of UCH. Initially, a keyword search was carried out in two of the most extensive scientific databases. Publications were reviewed according to several criteria. Various data have been obtained, such as the change in the number of publications over the years, which journals are more interested in the subject, which topics are at the forefront, which places are preferred for case studies, and who are more likely to conduct research. The results show that the studies on the management of UCH mainly focus on evaluating the current management examples and their issues, policy development, legislation, and documentation of the sites. The cultural heritage in the case studies varies from archaeological and architectural remains to shipwrecks and, sometimes, movable objects, despite the emphasis on in-situ built heritage in the search criteria. Meanwhile, the researchers are primarily from universities in Western countries such as the United States and the United Kingdom. Additionally, many publications evaluate national policies and emphasize the importance of public participation, interpretation, and access. While still not much compared to land heritage, the number of studies has increased over the years. As the results of the review are discussed, suggestions are offered for possible future publications.Article Citation - Scopus: 1Characteristics and Production Technologies of Byzantine Building Bricks From the Anaia Church in Western Anatolia(Springer, 2023) Çam, Elif; Uğurlu Sağın, ElifFired bricks were valued as essential building materials in the central tradition of Byzantine architecture in Constantinople (Istanbul), Anatolia, and the Balkans. In this study, Byzantine bricks from three construction periods, covering nearly nine centuries (fifth-fourteenth centuries), of Anaia Church (Kadikalesi) in Western Anatolia were investigated to determine their characteristics, raw material properties, and production technologies. The characteristics of the bricks were evaluated and compared in order to identify similarities and differences between the periods and to investigate the continuity of the tradition of brick production over centuries. Basic physical and colorimetric properties, chemical and mineralogical compositions, thermal behavior, and microstructural and mechanical properties of bricks were determined by scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (SEM-EDS), Fourier-transform infrared spectrometry (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and mechanical tests. The results indicated that all the bricks in the Anaia Church were brown-beige colored, highly porous, low-density materials with low mechanical strength. They were produced from Ca-rich clays, probably obtained from two different sources used during all construction periods. The mineralogical composition and thermal properties revealed that the bricks from the first and second periods were fired at between 800 and 900 & DEG;C and the bricks from the third period were fired at < 850 & DEG;C. Greater calcium content and firing temperatures were found to reduce the total porosity and the number of small pores (< 10 & mu;m) and increase the mechanical strength of the bricks. The results of the study revealed no significant differences in the production of bricks, including raw material sources and kiln conditions, for the different construction periods of the church.Article Defining the Impacts of Historical Development Activities on Urban Heritage of Iskenderun (alexandretta)(Konya Teknik Üniversitesi, 2023) Nalça Kıssaboylu, Canan; Kul, Fatma Nurşen; Rifaioğlu, Mert NezihIskenderun, also known as Alexandretta in antiquity, has long been a strategically significant port city in the Eastern Mediterranean thanks to its natural harbour. Due to its advantageous location, the settlement began to rapidly urbanize after the mid-19th century as a result of the impacts of Ottoman and later the French Mandate period development activities. This article focuses on defining the influences of historical development activities on the urban heritage of Iskenderun by understanding and evaluating various efforts that lie behind the formation of the city as an important trade centre and port city connecting the Middle East, Asia Minor, and Europe. By doing so, the formation, development and transformation of the settlement are chronologically deciphered regarding its historical turning points: the mid-19th century Ottoman period, the beginning of the French Mandate period (1919), and the joining of Iskenderun to the Republic of Turkiye (1939). Accordingly, the characteristics of the urban form, the ways these characteristics were transformed, and the problems and strategies encountered within different periods are decoded. This decoding employed a combined methodology, including historical interpretation and case study research methods. The results of the study reveal that Iskenderun has experienced different solutions for problems of infrastructure within the different periods, as a reflection of different political understandings and public and social needs among those periods.Article Characteristic Architectural Elements of Traditional Barbaros Houses With a Single-Living Space and Their Relationship With Daily Life(Istanbul University Press, 2023) Saribekiroǧlu, Ş.; Kul, F.N.Barbaros is a rural settlement in Urla, Izmir, Turkey. This study aims to understand the architectural elements of Barbaros houses with a single-living space, their spatial organization, relation with daily life, and the local terminology for them. Moreover, it is aimed to reveal possible similarities and dissimilarities between architectural elements of other singleliving space rural houses in different settlements in close geography. The site survey data was collected in 2016, 2017, and 2020. Fourteen houses were examined, all of which still preserve their original spatial characteristics and architectural elements. The plans and architectural elements of each of the 14 buildings were documented in sketches and photographs. The architectural elements of each house and their characteristics, including form, material, and location in space, were analyzed. The Barbaros case was compared with other rural settlements in Çeşme, Karaburun and Urla. Oral interviews were conducted with 13 people to reveal the relationship between architectural elements and daily life. © 2023 The Author(s).Article Citation - WoS: 1On-Site Measurements of Temperature and Humidity Conditions for the Comparison of Urban and Rural Sub-Spaces of Traditional Settlements: Historical City of Mugla, Turkey(Taylor & Francis, 2023) Timur, Barış Ali; Başaran, Tahsin; İpekoğlu, BaşakOne of the significant processes that ensures realistic determination of the energy needs of historical buildings is case-specific definition of their local microclimatic conditions. Accordingly, the aim of this study is to determine differences for the parameters of temperature and humidity in urban and rural sub-settlements of the historical city, Mugla/Turkey. Study method consists of on-site measurements of these variables in sub-settlements for comparisons. As a result, it was identified urban zone shows heat island characteristics with warmer, drier, and more stable conditions; while rural sub-settlement remains cooler, more humid, and more erratic. In parallel, calculated extents of these differences demonstrate the significance and necessity of on-site measurements and consequential microclimatic zoning of historical cities as conservation/planning tools for responding to the thermal needs of architectural heritage. A key application of these processes would be the establishment of local databases of case-specific weather data to be used in thermal simulation assessments.Article Citation - Scopus: 3Characteristics of Byzantine-Period Lime Mortars and Plasters From the Anaia Church (kadikalesi)(Institute of Metals Technology, Ljubljana, 2022) Işık, Tuğçe; Uğurlu Sağın, ElifIn this study, Byzantine- period lime mortars and plasters used in the Anaia Church in Ku degrees adasy- Aydyn were examined in order to determine their characteristics and investigate the continuity of the lime mortar technology through centuries in the Anaia Church. The results will also contribute to future conservation studies at the site. Basic physical properties, raw-material compositions and hydraulic properties of lime mortars and plasters; mineralogical and chemical compositions, microstructural properties of binders, aggregates and limes; and pozzolanic activities of aggregates were determined using RILEM test methods, XRD, SEM-EDS and TGA. Mortar samples were comprised of natural aggregates whereas lime plasters were made of brick aggregates. Analyses revealed that plasters were slightly less dense and more porous than mortars due to the porous structure of the brick aggregates. All mortars and plasters were hydraulic due to the use of highly reactive pozzolanic aggregates. The basic physical properties, raw-material compositions, mineralogical and chemical compositions of mortars and plasters were found to be similar throughout the construction periods spread over different centuries. These similarities revealed the conscious knowledge of the lime mortar technology during the Byzantine period in Western Anatolia.Article Citation - WoS: 2Citation - Scopus: 3Integration of Archaeological Heritage in Metropolitan City Centres With Urban Life: Agora of Smyrna(Taylor & Francis, 2022) Çalışkan, Merve; Hamamcıoğlu Turan, MineArchaeological sites located in metropolitan city centres in Turkey are subjected to diverse interventions. However, they are mostly isolated from the rest of the historical environment and become alienated from urban life. The aim is to identify an integration framework for archaeological sites in metropolitan city centres with contemporary urban life. A case study approach is employed, focusing on the Agora of Smyrna in İzmir, Turkey. Literature review on the case and similar cases, analysis of similar cases, literature review on integration criteria, survey, and a Delphi study to understand expert opinion were carried out. As a result, improving the quality of urban life and the good reputation of Agora’s vicinity, and the presentation, management, and usage of Agora itself support its integration. Nevertheless, the ‘presence of public concern for the conservation of the site’ is still the most important for the integration of the Agora with urban life.Article Characterization of Yellow Patina on Stone Surfaces by Instrumental Analysis Including Libs(Taylor & Francis, 2022) Badur, Fulya; Aras, Nadir; Yalçın, Şerife; Böke, HasanYellow patina formed on the stone surfaces of historical buildings, monuments, and archaeological structures due to weathering is considered a value of the building in the conservation of cultural heritage studies. Although yellow patina layers can be easily distinguished on white marble surfaces, it is not possible to distinguish them on the yellow travertine surfaces with the naked eye. It should be taken into account in yellow travertines as well as marble surfaces before conservation treatments of the stone. In this study, mineralogical and chemical compositions and the thicknesses of yellow patina layers formed on yellow travertine and marble surfaces in Aizanoi, Aphrodisias, and Hierapolis archaeological sites in Turkey were analyzed in order to constitute a conservation approach in the archaeological sites. In this respect, XRD, FT-IR, SEM-EDX, and LIBS were used in the determination of compositions and thicknesses of yellow patina. Although LIBS analysis is a more convenient method to investigate patina layers on stone surfaces, this technique is not as well known as the others. Yellow patina layers contained calcium oxalate in the form of whewellite (CaC2O4.H2O). Their thicknesses were between 15 and 100 μm and should be protective against weathering on travertine and marble surfaces. Highlights LIBS analysis seems to be the most convenient micro-destructive method to estimate the thickness of the yellow patina layers on the marble and yellow travertine surfaces. The determination of the thickness of the yellow patina is critical to keep irreversible cleaning interventions, especially for the yellow travertines due to their similar colors. Yellow patina is mainly composed of calcium oxalate with clay minerals and organic compounds.