Historical masonry arch bridges which are important components of the transportation in many places worldwide are invaluable part of architectural and cultural heritage. These bridges, which date back to hundreds of years, have frequently been damaged or ruined because of unexpected events such as earthquakes. In this study, earthquake behaviour of a historical masonry arch bridge which called Dutpınar is analysed using 2003 Bingöl earthquake acceleration records. The bridge is modelled with three dimensional finite element software. Dynamic response of the bridge is investigated. For this purpose, displacement of the nodal point located at the top of the bridge is achieved. Also, maximum and minimum principal stress and strains are obtained and potential locations of initial damages are evaluated.

Historical masonry arch bridges which might be vulnerable to natural disasters are important part of the cultural heritage. Natural disasters, especially earthquakes can inflict damage to these structural systems. This paper aims to investigate a comparison of the effects of near and far-fault ground motions on the seismic response of masonry arch bridges under different earthquakes. Kalender masonry arch bridge which is located in Ergani, Turkey is selected as a numerical model. For this purpose, three-dimensional finite element model of the bridge is generated with ANSYS finite element software with macro modelling approach. Seismic response of the bridge is assessed by means of time-history analyses. The near-fault and far-fault ground motions, which have approximately equal peak ground accelerations, of 1979 Imperial Valley, 1999 Chi-Chi, 1999 Kocaeli and 2010 Darfield earthquakes are considered for the analyses. Comparisons between maximum displacements, maximum and minimum stress, which were acquired from the dynamic analyses of the masonry bridge subjected to each fault effect, are obtained. The study demonstrates that far-fault ground motions are as important as near-fault ground motions and it can be used together with near-fault ground motion for further evaluation of such historical masonry bridges.

Historical masonry structures that connecting the past to the present have great importance because they represent the experiences and characteristics of various cultures. Therefore, the protection of historical structures is important. In this study, the structural response of the historical masonry Mosque was evaluated through dynamic analyses. For this purpose, the Sütlü Minaret Mosque which is located in Malatya, Turkey, was investigated. The three-dimensional model of the historical mosque was generated with ANSYS software. The material properties of the mosque were obtained with experimental tests. The time history analyses were used to obtain the seismic behavior of masonry mosque. In the time history analyses, six different strong ground motion records, including the 2020 Elazığ earthquake, were used. After the analysis, displacement and stress values in the mosque were given. The absolute peak displacement value among these earthquake records was obtained from the 1999 Düzce earthquake and the highest principal compressive and tensile stress values were determined for the 2010 Darfield earthquake. Also, the crack regions which occurred in the mosque after the 2020 Elazığ earthquake were compared with the dynamic analysis result of the 2020 Elazığ earthquake. The crack regions formed after the Elazığ earthquake are similar to the possible crack regions formed after the dynamic analysis.

Tarihi yığma kemerli köprüler eski dönemlerden beri geçmiş uygarlıkların kültürel mirasını günümüze aktaran en önemli yapılardan biridir. Tarihi yığma kemerli köprüler geçmişte ulaşım, ticaret ve mimarinin en önemli unsurlarından biridir. Ancak yeni yapı malzemelerinin ve yapım yöntemlerinin gelişmesiyle günümüzde artık yığma kemerli köprüler inşa edilmemektedir. Bu yapılar deprem, sel, yangın ve savaşlar gibi dış etkenlerle zarar görebilmektedir. Ülkemizde de tarihi köprüler gibi geçmişi günümüze bağlayan önemli mühendislik yapılarının mevcut durumlarının tespit edilerek geleceğe güvenle devredilmesi amacıyla çeşitli çalışmalar yapılmaktadır. Bu çalışmanın temel hedefi tarihi yığma kemerli bir köprünün lineer dinamik analizlerini gerçekleştirerek köprünün deprem etkisi altındaki davranışını incelemektir. Bu amaçla tek açıklıklı yığma kemerli bir köprü sayısal örnek olarak ele alınmıştır. Köprünün 3 boyutlu sonlu elemanlar modeli ANSYS sonlu elemanlar programı ile makro modelleme yaklaşımı dikkate alınarak oluşturulmuştur. Lineer dinamik analizlerde köprünün bulunduğu konum da göz önünde bulundurularak 2011 Simav ve 2002 Sultandağı depremlerine ait ivme kayıtları sismik etki olarak kullanılmıştır. Yapılan analizlerden köprüye ait yer değiştirmeler ve maksimum-minimum asal gerilmeler elde edilmiş ve köprünün sismik tepkileri değerlendirilmiştir.

Turkey is located on a seismically active region. The active fault zones, primarily the North Anatolian Fault and East Anatolian Fault, constitute a center to the movements. On 24 January 2020 at local time 20:55, an earthquake of Mw = 6.8 struck Sivrice, Elazığ located in eastern part of Turkey. After this main shock, 1185 aftershocks were recorded until February 8, 2020. The main event resulted in 41 human casualties and 1632 injured. Also, 45 people were salvaged from the debris. The earthquake mostly affected to Elazığ and Malatya provinces. 633 buildings were demolished, 10492 buildings were severely damaged, 2161 buildings were moderately damaged, and 16046 buildings were slightly damaged in the affected region. This paper focus on evaluating the damages and failures of masonry, adobe, and historical structures in the affected areas around Elazığ and Malatya provinces.