• Title/Summary/Keyword: historical structure

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Aseismic protection of historical structures using modern retrofitting techniques

  • Syrmakezis, C.A.;Antonopoulos, A.K.;Mavrouli, O.A.
    • Smart Structures and Systems
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    • v.4 no.2
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    • pp.233-245
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    • 2008
  • For historical masonry structures existing in the Mediterranean area, structural strengthening is of primary importance due to the continuous earthquake threat that is posed on them. Proper retrofitting of historical structures involves a thorough understanding of their structural pathology, before proceeding with any intervention measures. In this paper, a methodology is presented for the evaluation of the actual state of historical masonry structures, which can provide a useful tool for the seismic response assessment before and after the retrofitting. The methodology is mainly focused on the failure and vulnerability analysis of masonry structures using the finite element method. Using this methodology the retrofitting of historical structures with innovative techniques is investigated. The innovative technique presented here involves the exploitation of Shape Memory Alloy prestressed bars. This type of intervention is proposed because it ensures increased reversibility and minimization of interventions, in comparison with conventional retrofitting methods. In this paper, a case study is investigated for the demonstration of the proposed methodologies and techniques, which comprises a masonry Byzantine church and a masonry Cistern. Prestressed SMA alloy bars are placed into the load-bearing system of the structure. The seismic response of the non-retrofitted and the retrofitted finite element models are compared in terms of seismic energy dissipation and displacements diminution.

Collapse mechanism estimation of a historical slender minaret

  • Nohutcu, H.;Hokelekli, E.;Ercan, E.;Demir, A.;Altintas, G.
    • Structural Engineering and Mechanics
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    • v.64 no.5
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    • pp.653-660
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    • 2017
  • The aim of this study is to accurately estimate seismic damage and the collapse mechanism of the historical stone masonry minaret "Hafsa Sultan", which was built in 1522. Surveying measurements and material tests were conducted to obtain a 3D solid model and the mechanical properties of the components of the minaret. The initial Finite Element (FE) model is analyzed and numerical dynamic characteristics of the minaret are obtained. The Operational Modal Analysis (OMA) method is conducted to obtain the experimental dynamic characteristics of the minaret and the initial FE model is calibrated by using the experimental results. Then, linear time history (LTH) and nonlinear time history (NLTH) analyses are carried out on the calibrated FE model by using two different ground motions. Iron clamps which used as connection element between the stones of the minaret considerably increase the tensile strength of the masonry system. The Concrete Damage Plasticity (CDP) model is selected in the nonlinear analyses in ABAQUS. The analyses conducted indicate that the results of the linear analyses are not as realistic as the nonlinear analysis results when compared with existing damage.

FE model updating and seismic performance evaluation of a historical masonry clock tower

  • Gunaydin, Murat;Erturk, Esin;Genc, Ali Fuat;Okur, Fatih Yesevi;Altunisik, Ahmet Can;Tavsan, Cengiz
    • Earthquakes and Structures
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    • v.22 no.1
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    • pp.65-82
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    • 2022
  • This paper presents a structural performance assessment of a historical masonry clock tower both using numerical and experimental process. The numerical assessment includes developing of finite element model with considering different types of soil-structure interaction systems, identifying the numerical dynamic characteristics, finite element model updating procedure, nonlinear time-history analysis and evaluation of seismic performance level. The experimental study involves determining experimental dynamic characteristics using operational modal analysis test method. Through the numerical and experimental processes, the current structural behavior of the masonry clock tower was evaluated. The first five experimental natural frequencies were obtained within 1.479-9.991 Hz. Maximum difference between numerical and experimental natural frequencies, obtained as 20.26%, was reduced to 4.90% by means of the use of updating procedure. According to the results of the nonlinear time-history analysis, maximum displacement was calculated as 0.213 m. The maximum and minimum principal stresses were calculated as 0.20 MPa and 1.40 MPa. In terms of displacement control, the clock tower showed only controlled damage level during the applied earthquake record.

Features of the Architecture of Tourism and Tourist Complexes

  • Нnat, Galyna;Ivanochko, Ulyana;Solovii, Liubov;Petrenko, Yurii;Borutska, Yuliia
    • International Journal of Computer Science & Network Security
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    • v.22 no.9
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    • pp.117-122
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    • 2022
  • One of the promising sectors of the economy today is tourism in all forms and types. The multiplier effect of tourism is huge: the income received from one tourist exceeds the amount of money spent by him at the location on the purchase of services and goods in the range from 1.5 to 4 times. Countries known as world centers of tourism have made it a state policy, taking on the functions of forecasting, coordinating and controlling. The architectural monuments of the city historical structure are a pretty resource for tourism. Cultural tourism as a type of sociocultural human activity is one of the popular and mass types of tourism. The number of people wishing to get acquainted with historical and cultural sights is growing every year. In the cultural aspect, tourism has an impact on the spiritual and material spheres of human life, his way of life, value system, social behavior.Thus, the main task of the study is to analyze the features of the architecture of tourism and tourist complexes. As a result of the study, current trends and prerequisites for the architecture of tourism and tourist complexes were investigated.

Why Does Historical Drama Need Romance? -Focused on the Television Drama Mr. Sunshine (역사드라마는 왜 로맨스를 필요로 하는가 -<미스터 션샤인>(2018)을 중심으로)

  • Yang, Geunae
    • Journal of Popular Narrative
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    • v.26 no.2
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    • pp.123-153
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    • 2020
  • As the importance of documented fact has weakened in historical dramas, the combination with other genres has become prominent. By reviewing the way romance is dealt with in historical dramas, this research examines how the properties of historical events adopted by historical dramas are related to the motif of love, and how the narrative of love and romance contributes to the historical effects, with a focus on the television drama Mr. Sunshine. Mr. Sunshine is the first historical drama written by Kim Eun-sook, combining deliberately rearranged history with the writer's unique grammar of romance. The failed resistance movement of the righteous army in the drama is matched with the love that cannot be achieved based on self-negation. The drama, which deals with the tyranny of Japanese imperialism and the independence of Joseon, fictionalizes key characters and events, transforming the desire of love into the passion of patriotism. Romance in Mr. Sunshine serves as a catalyst for emphasizing the tragedy of historical events and reconstitutes cultural memories. In historical dramas, the fictional plot of romance leads viewers to reflect on human life in history that flows from the past to the future. How does an individual's inner feelings contribute to the historical representation? This research is significant as it is the first attempt to examine the relationship between historical drama and romance in various ways.

Shaking Table Test of Full Scale Parapet Models for the Evaluation of Intensities of Historical Earthquakes (성첩 모델의 진동대 실험과 역사지진의 세기 평가)

  • 김재관
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2001.04a
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    • pp.461-467
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    • 2001
  • Shaking table tests were performed with full scale models of stone parapet on the ancient rampart. The objectives of these tests are to study the seismic behavior of the parapet and to obtain quantitative estimation of the intensities of historical earthquakes. Two test models were made based on the structure of the parapet remnant of a mountain fortress in Bukhan-San located in Seoul. Two types of infilling material are considered. The responses to models were tested subjected to three kinds of input motion.

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Historical Review on the Family Studies (가족연구의 역사적 고찰)

  • 이정연;유영주
    • Journal of Families and Better Life
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    • v.8 no.1
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    • pp.1-14
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    • 1990
  • Scientific studies on the family have been done since 1960, considerable amounts have been accumulated quantitatively and qualitatively. But, it is a pity that research results from many other disciplines were not classified systematically nor exchanged each other. This historical review includes results on the family studies in Americal and Korea, in the latter, 1191 literatures are analyzed into 7 major domains : marriage and family values, family relationships, family structure, family problems, family studies trend, sex-roles, etc. Based on this article, more desirable theory building in Korean families is required.

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A Study on the Architectural History of Popular Housing in City - the Case of Chun-cheon City - (도시(都市)의 일반주택(一般住宅) 변천(變遷)에 관(關)한 연구(硏究) - 춘천시(春川市)를 중심(中心)으로 -)

  • Ryu, Seung-Yong
    • Journal of Industrial Technology
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    • v.12
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    • pp.3-13
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    • 1992
  • The purpose of this study is to investigate the historical changes in popular house form of chuncheon city. 177 samples of the houses built in the period of 1951~1992 were selected. The house structure, size, equipment system were analyzed as well as material, color and types of roof along the historical development.

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A Proposal for Use in Research Methodology of Traditional Medicine in East Asia - Historical Evidence-Based Medicine - (전통한의학 연구방법론의 현대화에 대한 소고(小考) - 역사적 근거중심의학에 대한 제언 -)

  • Eom, Seok-Ki;Kim, Se-Hyun;Choi, Won-Cheol
    • Journal of Korean Medical classics
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    • v.23 no.2
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    • pp.89-105
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    • 2010
  • Research methodology on Traditional Medicine in East Asia refers to logical thinking system, empirical positivism system and methodology of developing these knowledge systems. Logical thinking system of abstract concepts such as analogy or abduction and positivism system of reasonable explanation such as the five elements and their characteristic theory have been used in various ways empirically or in the form of humanities and knowledge system was developed through parallel structure of empirical positivism and exegetical studies. After the 16th century, evidence was required along with the tradition of putting emphasis on rationality, logicality and empirical positivism and characteristics of medical humanities can be found in emphasizing on medical ethics. Data that can be considered as structural review paper or meta analysis from original data of research on Traditional East Asian Medicine should be evaluated as historical evidence which is equivalent to specialist opinion, descriptive disease research, single case report or case series. Historical evidence based medicine is a research method using Historical evidence to selectively support data that are faithful to traditional theory with higher possibility to be used in future traditional east Asian medicine that links between traditional knowledge and scientific research methodology. Moreover, historical evidence based medicine tries to re-evaluate the value of traditional knowledge and ultimately, guides the direction of development of traditional medicine through scientific rationality based on history and culture.

Transformation of Urban Spatial Structure by Using Historical Geographic Information - Case Study of Shenyang in China - (역사지리정보를 활용한 도시공간구조 변화에 관한 형태학적 연구 - 근대 심양의 도시성장을 대상으로 -)

  • Lee, Kyung-Chan;Choi, Bong-Moon
    • The Journal of the Korea Contents Association
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    • v.6 no.12
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    • pp.147-154
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    • 2006
  • The final purpose of this study is to explore morphological change of Shenyang in the period of the rising Chung Dynasty. For that purpose we have tried to build the historical GIS DB of site and analysis of the structure and shape pattern of the city by using the functions of GIS. From the view of spatial structure and cultural context, main characteristics, which is derived from the analysis of ancient map of Shenyang, can be summarized into five things as follows ; transformation of open spatial structure into closed structure, combination of horizontal spatial structure with vertical structure, transformation of practical spatial structure into symbolic structure, transformation of natural spatial structure into institutional form of ancient Chinese capital city, conservation of traditional Manchurian culture.

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