• Title/Summary/Keyword: Construction facility

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Understanding the Degradative Effects of Different Climatological Conditions on Architectural Coatings: Progress Report on Korea Institute of Construction Materials Site Comparison Study of Seosan (Korea) Outdoor Exposure Testing Facility

  • Choi, Yoon;Pyo, Soonjin;Seo, Junsik;Yang, Inmo;Kim, Seungjin;Kim, Sangmyoung
    • Corrosion Science and Technology
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    • v.8 no.3
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    • pp.116-118
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    • 2009
  • Korea Institute of Construction Materials founded Seosan Outdoor Exposure Test Site 2005 at Korea, which is a part of Worldwide Exposure Network (WEN). To evaluate the test site along with other exposure test sites, three different types of paints have been under real time weathering conditions at three major weathering test facilities around the world. Using these test specimens several spectroscopic experiments along with physical tests have been performed. Also acceleration tests have been performed using the same paints. The correlation of weathered paints among three different test facilities and accelerated test results has been compared. From the results the reliability of Seosan Weathering Test Facility and reasonable life time prediction tests are discussed.

A study on the application and construction of a rainwater storage tank in apartment complex (공동주택단지에서의 빗물저수조 설치 및 활용방안 연구)

  • Lee, Won-Yeul;Jeong, Sang-Min;Shin, Duck;Lee, Chuel-Hun;Han, Moo-Young
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.4 s.18
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    • pp.165-171
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    • 2005
  • Nowadays, a source of all water, which has been spent by a lot of people, is the rainwater The rainwater is directly relating human being' life. According to how to use rainwater. human being' life is abundant or poor. Due to the lack of underground filtration quantity, the water circulation of the city is discontinued and the underground ecosystem is destroyed. This study suggest that the unused underground space of building and temporary structure can be used into rainwater storage tank in the facility to use rainwater. Moreover, in this study, while the building is constructed, It is showed that the water used in construction can be replaced in the rainwater.

Optimization Algorithms for Site Facility Layout Problems Using Self-Organizing Maps

  • Park, U-Yeol;An, Sung-Hoon
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.6
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    • pp.664-673
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    • 2012
  • Determining the layout of temporary facilities that support construction activities at a site is an important planning activity, as layout can significantly affect cost, quality of work, safety, and other aspects of the project. The construction site layout problem involves difficult combinatorial optimization. Recently, various artificial intelligence(AI)-based algorithms have been applied to solving many complex optimization problems, including neural networks(NN), genetic algorithms(GA), and swarm intelligence(SI) which relates to the collective behavior of social systems such as honey bees and birds. This study proposes a site facility layout optimization algorithm based on self-organizing maps(SOM). Computational experiments are carried out to justify the efficiency of the proposed method and compare it with particle swarm optimization(PSO). The results show that the proposed algorithm can be efficiently employed to solve the problem of site layout.

Design & Construction of PSC Box-Girder Bridge with Central Suspension by Extradosed Cables and Constant Girder Depth (중앙일면식 케이블과 등형고를 갖는 Extradosed PSC 교량의 설계 및 시공)

  • 조의경;김성일;박종화;이수열
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.618-625
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    • 2003
  • The recent development of PSC girder bridges are mostly dedicated for optimization of self-weight, simplification of girder section for easy construction and minimization of maintenance efforts. Moreover some of those bridges are required as a landmark facility which raises the image of locality and harmony with surroundings. An extradosed bridge is one of the best alternates which not only covers the longer span than PSC box girder and also performs the role of landmark facility with much cheaper cost than cable stayed bridge. Hyundai is carrying out the construction of unique style extradosed bridge which have central suspension system and uniform girder depth named Keong-An grand bridge on the Sungnam-Janghowon Express highway. In this paper, major process of design and construction features of Keong-An bridge is presented.

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Research Integrated Change Process for Configuration Management of Construction Nuclear Power Plant (건설원전 형상관리를 위한 통합변경프로세스 연구)

  • Park, Youjin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.05a
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    • pp.231-232
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    • 2016
  • Configuration Management (CM) is a process of identifying and documenting the characteristics of a Structures, Systems and Components (SSCs), and of ensuring that changes to these characteristics are properly assessed, approved, issued, implemented and verified. There are requirement management, change control, facility configuration information management for CM activities. In order to improve safety of Nuclear Power Plant(NPP), it is necessary to manage change item systematically. Existing CM concept is focused on the NPP in operation. On the other hand, NPP under construction is difficult to efficiently manage the change because of different change process from varoius stake-holders. This research considers method of consolidation change process for NPP to ensure that approved changes are accurately reflected in the design requirements, facility configuration information, and the physical configuration.

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Analysis of Field Condition for Proper Waterproofing Materials applied to Green Roof System for Depot (도시철도 차량기지의 기반녹화에 적합한 방수시스템 선정을 위한 환경 조건 분석)

  • Min, Kwang-Man;Kwon, Shi-Won;Choi, Sung-Min;Kwak, Kyu-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.11a
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    • pp.127-131
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    • 2006
  • Depot have a lagged behind structure in the side of building up the view. With this reason, people have been recognized depot as hatred facility causes to have car noise, air pollution. In the other hand, depot become a underground and complex facility as a higher-value added building, and moreover, it need to understand the environment that depot structure have a specific field condition to apply green roof system. 1) Analysis proper waterproofing material and root barrier apply to depot need root penetrating test method 2) Suggest root barrier and waterproofing material relate to maintain and construction for green roof system 3) Construction condition for depot have crack movement of structure by vehicle vibration and root penetrating force by plant growth

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Mock-up Test for Nuclear Power Plant Rebar Modulation Applying Febrication (선조립공법을 활용한 원전구조물 철근모듈화 Mock-up 실험연구)

  • Lim, Sang-Jun;Lee, Byung-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.13-14
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    • 2015
  • To minimize construction of nuclear facility, it is required to reduce reinforcing bar amount and solve reinforcing bar concentration and for this, it is necessary to develop appication design technology and modular of high strength reinforcing bar. Hence, KHNP reduces excessive reinforcing bar amount which can cause possibility of poor construction of concrete through design standard development and modular of nuclear facility structure using high strength reinforcing bar to raise economics and has its purpose to maintain high-level safety and durability as they are. After reviewing the rebar drawing of the NPP structures and performing the mock-up test, the rebar modulation method in the various area of the NPP Structure has been established.

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Performance Evaluation of Welding Method for Modular of High-Strength Reinforcing Bars to the Nuclear Power Plant Structures (원전구조물 고강도철근 모듈화를 위한 용접방법 성능평가)

  • Lim, Sang-Joon;Lee, Han-Woo;Kim, Hyeong-Seob;Bang, Chang-Joon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.278-280
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    • 2013
  • To minimize construction quantity of nuclear facility, it is required to reduce reinforcing bar amount and solve reinforcing bar concentration and for this, it is necessary to develop application design technology and modular of high strength reinforcing bar. Hence, KHNP reduces excessive reinforcing bar amount which can cause possibility of poor construction of concrete through design standard development and modular of nuclear facility structure using high strength reinforcing bar to raise economics and has its purpose to maintain high-level safety and durability as they are.

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Study of application method for the Rebar Modulation of High-Strength Reinforcing Bars to the Nuclear Power Plant Structures (원전구조물 고강도철근 모듈화를 위한 적용방법 연구)

  • Lim, Sang-Joon;Lee, Byung-Soo;Bang, Chang-Joon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.17-18
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    • 2013
  • To minimize construction of nuclear facility, it is required to reduce reinforcing bar amount and solve reinforcing bar concentration and for this, it is necessary to develop appication design technology and modular of high strength reinforcing bar. Hence, KHNP reduces excessive reinforcing bar amount which can cause possibility of poor construction of concrete through design standard development and modular of nuclear facility structure using high strength reinforcing bar to raise economics and has its purpose to maintain high-level safety and durability as they are. This study is to introduce application method for the Rebar Modulation of High-Strength Reinforcing Bars to the Nuclear Power Plant Structures.

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