Master Degree / Yüksek Lisans Tezleri

Permanent URI for this collectionhttps://hdl.handle.net/11147/3008

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  • Master Thesis
    Finite Element Modeling of Historical Masonry Structures; Case Study: Urla Kamanli Mosque
    (Izmir Institute of Technology, 2004) Teomete, Egemen; Aktaş, Engin; Aktaş, Engin; 03.03. Department of Civil Engineering; 03. Faculty of Engineering; 01. Izmir Institute of Technology
    Historical structures are our cultural values that left behind by the thousands of year.s cultural accumulation. They pass our identity and civilization to the next generations. Conservation of historical structures and carrying them to the future are our inevitable duty.Before restoration and strengthening, historical structures must be analyzed thoroughly. The problems of the structure should be well identified; taking into account the special conditions of the structure, assessmental applications should be planned and applied. The assessment procedure generally consists of history investigation, measurement survey, material and structural tests, foundation survey, long term observations and structural analyses. Today, finite element analyses is the most common method of structural analyses of historical masonries. In this thesis finite element (FE) modeling of historical masonry structures was investigated. The study has been conducted on a case study, Urla Kamanli Mosque. History investigation, measurement survey, long term observations, material tests have been conducted. The seismicity of the region and local soil conditions were investigated. By using the data collected, FE analyses of the structure was performed by use of LUSAS, a commercial FE software. The structure is safe under its self weight while high tensional stresses occur at the drum-dome connections and at the second level windows and drum windows. The seismic analyses were conducted by use of response spectrum. The empty lintel places and the drum-dome connections are vulnerable under seismic loads. Linear elastic settlement analyses with self weight enlightens the reason of the existing cracks of the structure Nonlinear settlement analysis with self weight was conducted by use of concrete material model of LUSAS. The existing cracks' pattern of the structure was approximately simulated by the 1st principal stress contours. The concrete material model of LUSAS is suitable for analysis of masonry structures.
  • Master Thesis
    Investigation of Conservation Problems of the Prophet Ellias (elijah) Church in Izmir
    (Izmir Institute of Technology, 2011) Korkmaz, Doğay; İpekoğlu, Başak; İpekoğlu, Başak; 02.01. Department of Conservation and Restoration of Cultural Heritage; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    The Prophet Elias Church is one of the Greek Orthodox Churches that was built in the 19th century and has survived to the present time together with Aya Voukla and Doğanlar Church in Izmir. The purpose of this study is to examine the architectural characteristics and structural problems of this building while determining its values to be preserved, to assess conservation problems and to ensure that this structure is protected along with its original qualities. In line with this purpose, architectural measurements were taken to determine the present condition of the building by primarily employing conventional techniques, as well as, an electronic tachometer and two-dimensional drawings of the church were created in computer environment. Moreover, by means of visual observation, the architectural and structural characteristics, and structural problems of the building were determined along with the changes it went through in time. The information obtained was transferred to ArcGIS program to establish an information system that can be updated, and questioned and would allow addition of new information determined under different disciplines. By means of comparative study, historical research and a restitution study the original features and values requiring preservation of the building were determined. In the results of these studies a restoration project was prepared and the new function for the building is proposed as a multi-purpose hall. As a result of the study conducted, detailed information regarding the architectural characteristics of the building have been obtained while the conservation problems were examined and recommendations were made in regards to further studies to take place.
  • Master Thesis
    Investigation of the Preservation Problems of the Mescid and Türbe of Akşebe Sultan in Alanya
    (Izmir Institute of Technology, 2010) Tunçoku, Selim Sarp; Tunçoku, Selim Sarp; 02.01. Department of Conservation and Restoration of Cultural Heritage; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    The monument selected to be studied is a Seljuk building composed of a masjid and a türbeh located in the inner fortress of Alanya which was an important settlement during Anatolian Seljuk Period. The aim of the study is the documentation of the building by examining its architectural characteristics and construction techniques, to reveal its missing or altered parts and elements, to determine its structural and material problems occurred by the interventions carried out in the past and to propose solutions to sustain it with its original properties as much as possible. For this purpose, existing conditions, alterations, construction techniques and materials that form the building were determined by measured drawings and observations through fieldwork. For the restitution scheme, other masjids and turbehs of the same period have been evaluated in the light of the information obtained from the literature and archival research. Comparison of Akşebe Sultan with the other Anatolian Seljuk masjids has also been done for the missing and altered parts of the building for a reliable restitution scheme. The building was subjected to some interventions in the past and lost many of its original features. Due to the difficulties in finding reliable information about previous interventions, a restitution-based restoration proposal could not be proposed. Instead, long term studies and minimum interventions are proposed to prolong its life and to save original properties of the monument.