SUSTAINABLE CONSERVATION ISSUES OF Four 14th and 15th Century Mosques In AnkarA: AHİ ELvan MOSQUE, ÖRTMELİ, SABUNî AND POYRAJI MESJIDS
Journal Name:
- Orta Doğu Teknik Üniversitesi Mimarlık Fakültesi Dergisi
Keywords (Original Language):
Author Name | University of Author |
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Abstract (2. Language):
This paper provides a summary of a dissertation recently completed
by the author and its salient findings (1). Mosques and mesjids, or small
neighborhood mosques (2) built in Ankara between the 12th and 15th
centuries are virtually the only buildings remaining from the Seljuq, Ahi
and early Ottoman periods. Aside from hans, or commercial buildings,
hamams and türbes, or mausolea, these structures, distributed throughout
the urban topography, represent examples of buildings from the periods
in which they were built. As may be noted in historiographic accounts
of early Ottoman period such as Atsız (1992) and Neşri (1995), written
documents concerning Ankara are surprisingly few, mentioning the city
merely as a garrison seized or lost in well known battles. According to
Aktüre (1987), a certain amount of documentary evidence from these early
periods exist in vaqf, or foundation records which refer to this area under
individual settlement names. Otherwise, the inscription panels of historic
religious structures (i.e., mosques, or Camisi (3), mesjids and türbes) provide
the only written information available on their dates of construction,
patrons and builders.
According to both Aktüre (1987) and Bakırer (1992), a total of twenty-five
historic mosques and mesjids still exist, both within and in neighborhoods
around Ankara’s Citadel. Few maps of Ankara provide the names and
locations of such historic mosques and mesjids, türbes, as well as hans and
hamams in Ulus, now the historic district of Ankara. A map sketched by
Akçura (n.d.) and a more recent, digitized map (4) provide the locations
of all historic mosques and mesjids in Ulus with their dates which show
their distribution within the Ankara Citadel and throughout Ulus (Figure
1). As Bakırer (1992) rightly indicates, historic religious buildings present
at the Ankara Citadel and its surroundings, although not as well known
as contemporaneous examples in other cities, shed light on the historical
and physical development of the city and form a collection of building
types which share distinct architectural qualities (5). Earlier examples of
such mosques and mesjids not only reflect the transition of Ankara from
a primarily Byzantine garrison to a Turkish commercial and military
establishment, but also bear material evidence of their times. While some
of these historic buildings may be dated based on their inscriptions panels,
others may be grouped by period based on their architectural, structural
and decorative characteristics. Öney (1971) studied these historic buildings
as a whole, defining and evaluating their architectural characteristics based
on the following classification (6):
• Mosques and mesjids from the Seljuq period,
• 14th and 15th century mud brick mosques and mesjids with flat
timber roofs,
• 15th century stone and brick mosques and mesjids,
• 16th century stone and brick mosques and mesjids,
• 17th and 18th century mud brick, stone and brick mosques and
mesjids,
• 19th and early 20th century mud brick and stone mosques and
mesjids.
These six groups, examined with respect to their dates of construction,
architectural and structural characteristics and distribution in Ulus, suggest
that after the Turks took over the administation of Ankara, neighborhoods
spread in concentric circles from the Citadel to the surrounding plain (7).
Öney (1971) cites that only nine of these, one Friday mosque, or cami and
eight mesjids, still remain in their original form. These buildings, though
for the most part of modest scale, not only represent a traditional form of
religious architecture introduced to Anatolia during the Medieval period,
but also shed light on inteventions performed on such structures since the
1920s, whether it be to ensure their continued use or otherwise. All nine of
these historic structures, registered as historic monuments, formed the core
of historic neighborhoods in the Ulus district, once the center of Ankara.
However, it is not just on such historical significance that their intrinsic
values rest. Built mostly with timber framing, stone and mud brick,
perhaps to an even greater extent it is the architectural and artistic practices
of their era they embody that render them worthwhile subjects of study,
especially if the absence of any recent reports or studies on their present
condition is taken into account.
Given that one of the most important factors affecting the physical state
of historic structures is their macro- and micro-climatic environments,
it merely follows that such structures will deteriorate when exposed to
adverse conditions of this environment for any length of time, while due
upkeep of roofs and water drainage systems, coupled with the occasional
application of new rendering can, to a certain extent, alleviate those of the
macro-climate on the exterior, adverse effects of the micro-climate on the
interior are more difficult to detect. What may ordinarily be considered as
regular maintenance activities, such as the application of new rendering
and/or coatings, for the most part carried out merely to improve interior
appearance or the installation of heating and/or ventilation systems for
the comfort of their users, may also compromise the physical integrity of
the structure itself. These aside, even existing and, over time, changing
micro-climatic conditions may themselves lead to a variety of problematic
situations within the structure such as condensation, chemical degradation
through exposure to pollutive substances, decay in/of timber elements,
etc. Delay in the due assessment of such conditions may indeed lead to the
total loss of their physical integrity. Ergo, this investigation, through an
up-to-date assessment in these respects, aims to shed light on how these
structures can be better and more effectively conserved for their continuous
use, if not for mere display as part of our cultural heritage.
From the nine structures, one mosque and eight mesjids, identified by
Öney (1971) as still standing with their original form preserved, all dating
to the 14th and 15th centuries, four structures were selected for this study
to represent a roughly 45% sample. The selection itself was necessarily
purposive rather than random in order to cover as broad a range as
possible regarding not only size and location, but also the degree to which
their original architectural elements and decorative features have been
preserved. Historic religious structures of this time period were chosen as
the focus of this study due primariy to the existence of the highest number
of structures remaining in Ankara from this period. These religious
structures, preserved remarkably intact, though less well known than the
more monumental ones, such as Arslanhane Camisi, may be considered
equally worthwhile subjects of study.
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Abstract (Original Language):
Bu çalışmada, Ankara’da bulunan Ahi Elvan Camisi, Örtmeli Mescidi,
Sabunî Mescidi ve Poyracı Mescidi’lerinin bugünkü fiziksel durumları
ile geçmişte ve günümüzde korunmaları için alınmış bulunan önlemler
değerlendirilmiş, ve gelecekte yaşamlarının sürdürülebilir şekilde
korunabilmesi için öneriler sunulumuştur. Ondördüncü ve onbeşinci
yüzyıllarda inşa edilen bu dört tescilli yapı günümüze kadar özgün
formları ile mimarî elemanlarını büyük ölçüde korumuşlardır. Bu ahşap
direkli, ahşap tavanlı, taş temelli, ve kerpiç ile ahşap duvarlı yapılar,
aynı zamanda inşa edildikleri dönemde Anadolu’ya gelen yeni bir yapı
geleneğini temsil etmektedirler. 1920’lerden itibaren korunmaya başlanan
bu tarihi yapılar farklı şekillerde müdaheleler geçirmiş ve geçmişte çeşitli
malzemelerle sıvanmıştır (ör., çimento bazlı ya da toprak bazlı sıvalar).
Geçmişte gerçekleştirilen bu koruma müdaheleleri ile varolan fiziksel
sorunlar bazen gözle görülebilir olsa da, yapıların özgün malzemeleri
üzerindeki pozitif ve/veya negatif etkilerini saptamak çok daha güçtür.
Bu çalışma sürecinde, bu amaca yönelik olarak, söz konusu yapılarda
tahribatsız bir yöntem ile bir yıl boyunca mikro-klimatik ölçümler alınmış
ve veri toplanmıştır. Ankara’nın uzun vadeli meteorolojik verilerine göre,
Ocak, Nisan, Temmuz ve Ekim aylarında birer haftalık süreler boyunca
Tiny tag® Plus data logger’leriyle, her yapıda iç ve dış sıcaklık ve bağıl nem
oranları ile ahşap tavanlarının yüzey sıcaklıkları ölçülmüştür. Ayrıca,
her mevsim, her yapıda, sıcaklık ve bağıl nem oranlarının dağılımları m2
bazında ölçülmüş ve en kurak ay olan Temmuz ayı dışında, yapıların
iç duvarları ve tavanlarının yüzey sıcaklıkları ölçülmüştür. Yapıların
özgün malzemeleri ile geçmişte ya da günümüzde geçirdikleri koruma
müdaheleri görsel olarak ya da var olan yazılı bilgiler ile Vakıflar Genel
Müdürlüğü’nde bulunan arşiv belgelerinin incelenmesiyle saptanmıştır.
Çalışma sonucunda, bu dört yapının taşıyıcı duvarlarının fiziksel
özellikleri ile iç mekanlarındaki malzemelerin tampon etkisi ve bu iki
faktörün iç mekanlarındaki mikroklimatik koşullar üzerindeki etkileri
incelenmiştir. Ayrıca, iç mekânlarda bulunan özgün ahşap elemanların
ve/veya bezemelerin daha etkili bir şekilde korunabilmeleri için mikroklimatik
veriler çeşitli parametrelere göre incelenmiştir. Böylece, iç
ortamlarında arzulanan gönencin özgün mimarî elemanlarına zarar
vermeksizin sağlanması için gerekli koşullar ile yapıların sürdürülebilir
biçimde korunabilmeleri (bakım, önleyici önlemler, restorasyon) için alınan
önlemler değerlendirilmiştir. Sonuçta bu dört yapının fiziksel bütünlükleri
ile özgünlük değerlerine zarar vermeden gelecekte yaşamlarının
sürdürülebilir biçimde korunabilmeleri için alınabilecek önlemler
geliştirilmiştir.
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