• Title/Summary/Keyword: new city center

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Damage inspection and performance evaluation of Jilin highway double-curved arch concrete bridge in China

  • Naser, Ali Fadhil;Zonglin, Wang
    • Structural Engineering and Mechanics
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    • v.39 no.4
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    • pp.521-539
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    • 2011
  • Jilin highway concrete bridge is located in the center of Jilin City, which is positioned in the middle part in Jilin Province in the east north of China. This bridge crosses the Songhua River and connects the north and the south of Jilin City. The main purpose of damages inspection of the bridge components is to ensure the safety of a bridge and to identify any maintenance, repair, or strengthening which that need to be carried out. The damages that occur in reinforced concrete bridges include different types of cracks, scalling and spalling of concrete, corrosion of steel reinforcement, deformation, excessive deflection, and stain. The main objectives of this study are to inspect the appearance of Jilin highway concrete bridge and describe all the damages in the bridge structural members, and to evaluate the structural performance of the bridge structure under dead and live loads. The tests adopted in this study are: (a) the depth of concrete carbonation test, (b) compressive strength of concrete test, (c) corrosion of steel test, (d) static load test, and (e) dynamic load test. According to the damages inspection of the bridge structure appearance, most components of the bridge are in good conditions with the exception arch waves, spandrel arch, deck pavement of new arch bridge, and corbel of simply supported bridge which suffer from serious damages. Load tests results show that the deflection, strain, and cracks development satisfy the requirements of the standards.

Reflections on society in Francisco Ayala's Cazador en el alba (아방가르드 소설 『여명의 사냥꾼』과 사회 반영)

  • Kim, Chan-kee
    • Cross-Cultural Studies
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    • v.29
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    • pp.133-152
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    • 2012
  • Franciso Ayala's narrative work was published in the collection "Nova novorum" (1926-1929) of Revista de Occidente, founded by $Jos{\acute{e}}$ Ortega y Gasset. The author of Cazador en el alba was well aware of the avant-garde aesthetics and hence he put into practice an artistic rupture of the traditional narrative forms of Realism. The work consists of two short stories: "Cazador en el alba" and "Erika ante el invierno". The use of metaphor, Francisco Ayala's preferred literary device (which Ortega y Gasset already emphasized in The Dehumanization of Art), reveals the influence of $Ram{\acute{o}}n$ $G{\acute{o}}mez$ de la Serna's Aphorisms. Through a metaphoric language, "Cazador en el alba" describes the life of Antonio, a soldier and peasant, who visits Madrid and confronts the urban reality of the metropolis. "Erika ante el invierno" portrays with a singular depth the solitude of a woman living in another metropolis, Berlin. The author confessed that he wrote both short stories influenced by the European avant-garde and its use of poetic imagery and metaphor, common practice at that time. However, the main purpose of this article is to reflect upon the society of the first decades of the $20^{th}$ Century: the city, the people and their lives, the societal changes, as well as the innovative perspective of the new art.

A Study on Policy Alternatives to the Development of Urban Regeneration Project Using AHP Analysis (AHP분석을 이용한 도시재생사업의 발전에 대한 정책적 대안에 관한 연구)

  • Chung, Sam-Seok
    • Journal of the Korean Society of Industry Convergence
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    • v.25 no.6_3
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    • pp.1303-1313
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    • 2022
  • Modern cities need to revitalize the downtown area, which is declining due to population decline, economic recession, and deterioration of the residential environment, economically, socially, and physically by introducing and creating new functions. In addition, the hollowing out of the existing city center is getting worse due to the development of the outskirts of the city. Therefore, the discussion for the development of urban regeneration is the core task of modern cities. This study analyzed based on a basic understanding of urban regeneration projects, and through this, the problems of domestic urban regeneration projects were derived. In addition, the problem factors and major improvement plans of the urban regeneration project were analyzed from the expert's point of view using the AHP analysis technique. Based on this, the purpose is to present policy alternatives for the future development of urban regeneration projects. The problems derived to present the policy alternatives and improvement directions of the urban regeneration project were classified into problems related to goal achievement, problems related to the business itself, and problems related to project results. It was subdivided into sub-categories. This study analyzed the problem factors and major improvements from the expert's point of view by using the AHP analysis technique for the problems of the urban regeneration project. Based on the AHP analysis results and experts' opinions, five policy alternatives for the development of urban regeneration projects were presented.

The Usage and Classification of Modern Architecture Types in the Modern Historical and Cultural Street of Yeongju (영주 근대역사문화거리의 근대건축물 유형분류 및 활용제안)

  • Do, Hyun-Hak;Byun, Kyeonghwa
    • Journal of the Korean Institute of Rural Architecture
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    • v.25 no.1
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    • pp.25-34
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    • 2023
  • In 2018, the Cultural Heritage Administration of Korea introduced a new system that registers national cultural heritage in street and district units. Yeongju City's Modern Historical and Cultural District was selected as the first trial region. This grouping method breaks through conservation and utilization limitations of cultural heritage in individual building units. Thus, the issue is how will such historical and cultural spaces be grouped, conserved and managed. Hence, this study identifies the current situation of buildings in the Modern Historical and Cultural Street of Yeongju and conducts an experimental survey. Based on this, the types of modern architecture were classified, and the architectural groups were extracted and categorized to preserve and utilize the architecture. For these purposes, priority groups were determined by evaluating them based on five criteria: archetype, placeness, politicalness, typicality and originality. The modern architecture in the Modern Historical and Cultural Street of Yeongju have undergone many changes. The residential transformation of small and medium-sized cities during modern times can be understood as a process of settlement and nativization.

A Study on the Environmental Characteristics of the Pedestrian District in Freiburg, Germany - Focusing on Identity as a Historical City as related to the Waterscape and Paving Environments - (독일 프라이부르크시 보행자전용구역의 환경특성 - 수경 및 포장환경을 통해 본 역사적 정체성을 중심으로 -)

  • Hong, Youn-Soon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.2
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    • pp.64-74
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    • 2010
  • Freiburg, as the German Capital of the Environment, is well known to Koreans, and relationships with Korean cities are deeply extended. This study attempts to grasp the features of the historical and cultural environment in Freiburg's old town center pedestrian district through the investigation of the historical value of environmental elements and the way they are transmitted along with the components of city identity. Through the literature studies confirms that. The main canal in Freiburg, called Gewerbeknale, is valued both for its existence during the city construction period and for being an infrastructure to supply water to the Bachle(small urban canal) and Brunnen(fountain). In spite of a recipient environment in the middle of the 19th century, the traditional mosaic pavement has a new value as an mediator between citizens and the environment through the adaptations that have occurred in the city. This study has verified the dialectical repetition of crisis and conquest through the historical succession of environmental elements. The historical continuance of environmental elements has a strong influence on the acquisition of sameness and Individuality in city identity factors. The result of this study recommends the historical value of environmental elements that have survived in the urban environment, and verifies the necessity of a concrete strategy for preservation and related practical efforts.

A Study for Extension of BIM/GIS Interoperability Platform linked External Open Data (외부개방데이터 연계를 통한 BIM/GIS 상호운용 플랫폼확장에 관한 연구)

  • Park, Seung-Hwa;Hong, Chang-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.3
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    • pp.78-84
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    • 2017
  • Because the 'Internet of Things' and sensor network technology have become a new generation industry competitiveness with a development of Information Communication Technology, each local autonomous entity is trying to adopt a Smart City quickly. This requires an integrated platform inside of a smart city operation center. Established Smart City platform provides various services using CCTV information and ITS transportation information based on a two-dimensional map. The provision of advanced Smart City services will necessitate three-dimensional map information, building and facilities unit information, linked information with public data portal for service to the public. In this paper, the authors reviewed development trends of Smart City integrated platform and proposed mashup methods between BIM/GIS interoperability platform and external open data. BIM/GIS platform can provide spatial information services for indoor and outdoor seamlessly because it was developed based on GIS spatial data with BIM data. The linked external open data are V-World data, Seoul Open Data, and Architectural Data Open. Finally, the authors proposed the direction of development for BIM/GIS integrated platform to provide advanced Smart City services.

A Study on the Planning Technique of High-rised Housing Estates Applying Smart Green City Concept : Focus on Multi-functional Administrative City 2-1 Neighborhood (스마트 그린시티 개념을 적용한 고층주거단지 계획기법에 관한 연구 : 행정중심복합도시 2-1생활권을 중심으로)

  • Lee, Seo-Jeong;Lee, Eung-Hyun;Oh, Deog-Seong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.5
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    • pp.379-387
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    • 2016
  • The goal of this research is to identify the planning techniques of high-rise housing estates applying a smart green city concept in order to understand the necessity of integrating 'planning & building' planning techniques and 'smart system' planning techniques and to analyze the current status of application. For the research, firstl, the definition of smart green city was established and high-rise housing estates planning was categorized according to a three space hierarchy, seven planning directions and 17 major features through literature review. Second, 28 'planning & building' planning techniques and 'smart system' planning techniques were derived through literature review and FGI analysis. Last, four cases in Multi-functional Administrative City were analyzed for the current status of application of planning techniques. In conclusion, planning techniques in 'Transportation Network', 'Environment-friendly layout planning of housing', 'Revitalization of green transportation', 'Utilization of new & renewable energy', 'Crime prevention and accident reduction', 'Use of high performance, and efficiency facility' main feature were identified as important planning techniques for Smart Green City and its implications were estimated.

The Characteristics and its Change of Community Space in the Old Settlements of Cheongju City (도심 옛마을에 있어서 커뮤니티 공간의 특성 및 변화)

  • Kim, Tai-Young
    • Journal of the Korean Institute of Rural Architecture
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    • v.15 no.4
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    • pp.43-50
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    • 2013
  • This study is to clarify the characteristics and its change of spatial elements for community focused on the existing 22 old settlements in urban area of Cheongju. These community spaces are mainly divided into three parts, that is central space, inner road, and blind alley(cul-de-sac). The transitional characteristics of them are as follows. Firstly, the characteristics of central spaces is lasting, but the function is influenced by changing times. The function of central spaces located at the entrance to the village had been reduced to adjustments to modern lifestyle, and currently changed into senior citizen community center, supermarket, and public area. Secondly, as the width of the existing inner roads passed through old settlements had been extended, they are changed into pedestrian and traffic road, but the shape and function of them have been maintained. When new roads passed through old settlements had been established, the shape of old inner roads is disappeared, and the function of them is changed into byway and alley. Thirdly, cul-de-sacs of old settlements have tended to create a sense of community, but new cul-de-sacs formed by lot division have been only changed to passage. When new roads are established and cul-de-sacs are changed into alleys, the community between individual households is lost.

Effect Analysis on Self-supporting Energy of Newtown Sewage Treatment Facility for Low-carbon Green City (저탄소 녹색도시 조성을 위한 신도시 하수처리시설의 에너지 자립 효과 분석)

  • Ahn, Soo-Jeung;Hyun, Kyoung-Hak;Kim, Jong-Yeob;Choung, Youn-Kyoo
    • Journal of Korean Society of Water and Wastewater
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    • v.24 no.6
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    • pp.683-690
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    • 2010
  • Renewable and unutilized energy (biogas power generation, wind power, solar, small hydro-power, sewage heat source, etc.) seems to be suitable to install for the sewage treatment facilities. There are 357 sewage treatment plants in 2007. 17 plants among these have been operating for self-supporting energy by using solar power, small hydro-power and biogas in 2008. Newly built sewage treatment plant of 96,000 $m^3$/day for a newtown is expected to get up to energy consumption of 10 GWh/yr. If solar energy, small hydro-power and biogas-equipments were applied to the new treatment plant, self-supporting energy of the new sewage treatment plant will get up to 56.1%. As a results, about 2,379ton $CO_2$/yr $CO_2$ emission reduction can be expected by using renewable energy. These efforts for self-supporting energy will lead sewage treatment plant to new energy recycle center.

Influence of Nursing Organizational Culture on Empowerment as Perceived by New Nurses (신규간호사가 지각한 간호조직문화가 임파워먼트에 미치는 영향)

  • Seo, Yang-Yoeb;Ju, Hyeon-Ok
    • Journal of Korean Academy of Nursing Administration
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    • v.17 no.1
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    • pp.88-95
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    • 2011
  • Purpose: This study was done to identify the effect of nursing organizational culture on empowerment as perceived by new clinical nurses. Method: For the objective a sample of 175 new nurses from secondary/tertiary hospitals having not less than 250 beds located in B city was selected to complete a questionnaire. The collected data were analyzed using descriptive statistics, t-test, One-way ANOVA, Scheffe's test, Pearson correlation coefficients and simultaneous multiple regression with the SPSS 14.0 software program. Results: As for nursing organizational culture as perceived by the respondent, relation-oriented culture had the highest average score ($3.60{\pm}.63$) out of a possible 5 points followed by hierarch-oriented culture, innovation-oriented culture and task-oriented culture with $3.45{\pm}.30$, $3.19{\pm}.53$ and $3.05{\pm}.46$, respectively. The respondents' level of perceived empowerment was $3.06{\pm}.41$. The factors influencing empowerment according to nursing organizational culture were innovation-oriented and relation-oriented culture in that order. These 2 variables were statistically significant predictors and explained 48.6% of the variance in empowerment. Conclusions: The results of this study indicate that emphasis should be given to nursing organizational culture strengthened by innovationoriented and relation-oriented culture, rather than task-oriented and hierarch-oriented culture, in order to foster harmonious empowerment among nurses at all levels.