Yazar "Yurdakul, Muhammet" seçeneğine göre listele
Listeleniyor 1 - 6 / 6
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Bayburt bölgesinde bulunan farklı agregatipleri ile üretilen geleneksel betonlarınmekanik mukavemetleri üzerine bir çalışma(2017) Tekin, İlker; Kotan, Türkay; Yurdakul, Muhammet; Öner, ErdalBu çalışmada Bayburt İli sınırları içinde bulunan kireçtaşı, doğal dere agregası, serpantine ve Bayburt taşı kullanılarak geleneksel beton, Elif lar üretilmiştir. Deneysel çalışmada çimento dozajı ve işlenebilirlik sabit tutulmuştur. Çalışmada çökme, Ve-Be, birim hacim ağırlık ve ilk 2 saat içinde oluşan en yüksek taze beton sıcaklıkları ölçülmüştür. Hazırlanan beton örneklerden Bayburt taşı ile üretilen betonlar 90 gün, diğerleri 28 gün süreyle kirece doygun su içinde küre tabi tutulmuştur. Sertleşmiş haldeki betonların 7 ve 28 gün yaşlarında basınç dayanımı deneyi sırasında alınan deformasyon ve gerilme kayıtları sayesinde gerilme-deformasyon bilgileri edinilmiş ve su emme oranları ölçülmüştür. Sonuçlara göre beton numunelerin 28 günlük basınç dayanımı sonuçları; kireçtaşı, doğal dere ve serpantin agregası için sırasıyla 40, 35 ve 5 MPa olarak elde edilmiştir. Bayburt taşı agregası ile üretilen betonlarda basınç dayanımları 28 günde 16 MPa ve 90 günde 22 MPa değerine ulaşmıştır.Öğe DYNAMIC BEHAVIOUR OF HISTORICAL BAYBURT GRAND MOSQUE(Yildiz Technical Univ, 2020) Yurdakul, Muhammet; Yilmaz, Fatih; Artar, MusaIn this study, the locations of the damages that would occur when a historical building was exposed to different earthquakes were determined. The selected building is Bayburt Ulu Mosque located in the city center of Bayburt and it was built by the Anatolian Seljuk Sultan II. Giyaseddin. This selected historical building is modelled according to the macro modelling technique in the SAP2000 program using the finite element method. Modules of elasticity, poisson's ratio and weight per unit of volume of Bayburt Stone which is used in the mosque are determined by the experiment. Also, the properties of the ground on which the building was built are determined. As earthquake records which recorded on similar grounds, components of DZC180 and DZC270 of 17 August 1999 Kocaeli earthquake, components BOL000 and BOL090 of 12 November 1999 Duzce earthquake and components of ERZE-EW and ERZE-NS of 13 March 1999 Erzincan earthquake are used. In the results of the dynamic analysis made, quantities and locations of the strains that can occur in the historic mosque are determined.Öğe Investigation of time-history response of a historical masonry minaret under seismic loads(Elsevier Science Inc, 2021) Yurdakul, Muhammet; Yilmaz, Fatih; Artar, Musa; Can, Omer; Oner, Erdal; Daloglu, Ayse T.This study presents an investigation of the seismic performance of a historical masonry minaret which was built in the 12th century in Bayburt. The minaret was built as masonry with regional stones and handmade bricks. The most important feature of the minaret is its longitudinally conical geometry. An experimental investigation was made to obtain the mechanical properties of the regional stone used in the historical minaret. A three-dimensional Finite Element Model of the historical minaret was created in SAP2000. Three earthquake ground motions such as Erzincan, Kocaeli-Duzce, and Van-Ercis were used to investigate the seismic performance of the historical minaret. The results show that Erzincan, Kocaeli-Duzce and Van-Ercis earthquakes may cause some damages in the same zone of the minaret body since the tensile stresses occurred due to the earthquakes exceed the limit tensile stress of the masonry brick. The use of the data obtained from the experimental investigation of the Bayburt yellow stone in the analysis is important for the reliability of the results.Öğe Investigation on seismic isolation retrofit of a historical masonry structure(Techno-Press, 2019) Artar, Musa; Coban, Keziban; Yurdakul, Muhammet; Can, Omer; Yilmaz, Fatih; Yildiz, Mehmet B.In this study, seismic vulnerability assessment and seismic isolation retrofit of Bayburt Yakutiye Mosque is investigated. Bayburt Yakutiye Mosque was built in the early 19th century at about 30-meter distance to Coruh river in the center of Bayburt in Turkey. The walls of historical masonry structure were built with regional white and yellow stones and the domes of the mosque was built with masonry bricks. This study is completed in four basic phases. In first phase, experimental determination of the regional white stone used in the historical structure are investigated to determine mechanical properties as modulus of elasticity, poison ratio and compression strengths etc. The required information of the other materials such as masonry brick and the regional yellow stone are obtained from literature studies. In the second phase, three dimensional finite element model (FEM) of the historical masonry structure is prepared with 4738 shell elements and 24789 solid elements in SAP2000 software. In third phase, the vulnerability assessment of the historical mosque is researched under seismic loading such as Erzincan (13 March 1992), Kocaeli (17 August 1999) and Van (23 November 2011) earthquakes. In this phase, the locations where damage can occur are determined. In the final phase, rubber base isolators for seismic isolation retrofit is used in the macro model of historical masonry mosque to prevent the damage risk. The results of all analyses are comparatively evaluated in details and presented in tables and graphs. The results show that the application of rubber base isolators can prevent to occur the destructive effect of earthquakes.Öğe Mechanical Properties of Conventional Concrete Produced With Different Type of Aggregates in Bayburt Region(Gazi Univ, 2017) Tekin, Ilker; Kotan, Turkay; Yurdakul, Muhammet; Oner, ErdalIn this study, the limestone, natural aggregate, serpentine and Bayburt stone located in the province of Bayburt used as aggregate in conventional concrete production. In the experiments, the cement dosage and workability were kept constant. Slump, Ve-Be, unit weight and the highest temperature values in first 2 hours of the fresh concrete were measured. The concrete samples prepared with Bayburt stone were cured for 90 days and the others were cured for 28 days in lime-saturated water. Strain-stress data and water absorption values were measured on the hardened concretes at 7 and 28th days age through the records of stress and strain data during compressive strength tests. According to results of this study, the compressive strengths of the concrete samples with limestone, natural aggregate and serpentine were on average of 40, 35 and 5 MPa, respectively, on the 28th day. Also, in concrete samples with Bayburt stone, the compressive strengths were reached to 16 MPa for 28 days and to 22 MPa for 90 days.Öğe A study on seismic isolation of building used LRB(2020) Yurdakul, Muhammet; Yıldız, Mehmet BurakBase isolation system with lead rubber bearing (LRB) is commonly used to preventstructure against to damage of earthquake. Design of LRB system is detailed in thisstudy. The isolated building with LRB design according to Uniform Building Code(UBC-97) and fixed building were examined. The six-storey building with LRB andfixed building were modelled in SAP2000 with the same dynamic loads. The relativefloor displacement and internal forces of the seismic isolated and fixed building arecompared. In addition, transverse and longitudinal reinforcement of any axis of seismic isolated and fixed building are compared. Analyse results showed that effectiveness of using seismic isolation system on building. The weight of longitudinal andtransverse reinforcement of isolated building is smaller than fixed building about36%, 40% respectively.
