• Title/Summary/Keyword: Quality of Construction

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A study on the Application Scheme of the Warranty contract in constructions (건설공사의 성능계약 도입방안에 관한 연구)

  • Kim, Dae-Gil;Jeong, Ho-Geun;Seo, Young-Chil;Lee, Sang-Beom
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.89-92
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    • 2007
  • Since 1960s, advanced constructions have introduced warranty contract which is warranted to quality and performance for need of owner in determined term to ensure the quality of construction. However, the interior of a country encounter another problem result from Defects Liability what indefiniteness of defects standard, excess responsibility period, social recognition of be identical fraudulent work and defects, and contract with ascendancy of owners. etc, so builders concerned more excess defects liability than the quality of construction. The purpose of this study is to analysis of warranty contract in order to solve the problem such as stated above.

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A Study on the Direction of the Warranty Contract in Constructions (건설공사 성능계약제도 도입방향에 관한 연구)

  • Kim, Hyun;Park, Sung-Yong;Seo, Young-Chil;Lee, Sang-Beom
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.05a
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    • pp.153-157
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    • 2008
  • The construction market has gradually become complexity, variety and specialization, and then owner's requirements about quality has become various. In order to solve the problem such as stated above, advanced constructions in United Kingdom, Japan and United States have introduced warranty contract which is warranted to quality and performance for need of owner in determined term to ensure the quality of construction since 1960s. However, the interior of a country encounter another problem result from defects liability what indefiniteness of defects standard, excess responsibility period, social recognition of be identical fraudulent work and defects, and contract with ascendancy of owners. etc, so builders concerned more excess defects liability than the quality of construction. The purpose of this study is to analysis of warranty contract in order to solve the problem such as stated above.

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A Study on the Performance Analysis of Construction Supervision System (건설감리제도의 성과분석에 관한 연구(설문조사를 중심으로))

  • Han, Jae-Goo;Park, Hwan-Pyo;Chin, Kyung-Ho;Oh, Eun-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.05b
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    • pp.137-138
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    • 2011
  • This paper aims to analyze the performance of Construction Supervision System that contributed to domestic construction projects in public area with respect to reduction of shoddy constructions and improvement of the quality of construction results. Thus research suggested qualitative and quantitative criteria for assessing outcomes and analyzed the performance of Construction Supervision System based on the result of survey questionnaires.

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Study of the Variety Tests of the Condensation for Windows at the Residential Building (주거현장에서 창호 결로저항 성능을 확인하기 위한 다양한 실험 방법에 대한 고찰)

  • Jang, Duk-Bae;Hong, Goo-Pyo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.28 no.6
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    • pp.283-290
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    • 2012
  • Condensation has been a persistent and often misunderstood problem associated with windows. The purpose of this study was to analyze the tests about the condensation resistance for windows. We tested the condensation by Computer Simulation (WINDOW & THERM), Mock-up Test and Field Test. First, We conducted the simulation as pre-analysis. Second, We did Mock-up Test in the official approval laboratory, and last we made same condition in the residential building and measured the window surface's temperatures. TDR values were calculated by measured temperatures and We observed the condensation of windows. It is possible that we could use three methods(Simulation, Mock-up Test and Field Test) to analyze the condensation resistance. Analyzing the condensation resistance result from the Field Test, we can verify the level of air tightness and quality of construction finish and also possible to improve it.

An Analysis on the Relationship between Occurrence Type and Influence Factor of Construction Safety Accident using SNA Method (SNA 기법을 활용한 건설안전재해 발생형태와 영향요인의 관계성 분석)

  • Shin, Won-Sang;Son, Chang-Baek
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.33 no.4
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    • pp.47-54
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    • 2017
  • The purpose of this study is to understand the relationship among factors that influence the safety accident according to main occupations of reinforced concrete works which dominate structural safety and quality of construction works and account for substantial portion of the cost of construction, by using SNA(Social Network Analysis) and consider effective safety management methodology of future construction fields by analyzing the intensity of accident. The findings are as follows: First, various influencing factors were divided by analyzing data of construction safety accident. Second, important influencing factors were drawn depending on occurrence types by occupation and their relations are analyzed. Third, management directions were suggested by analyzing the intensity of accident according to occurrence types by occupation.

Review of Freeform Buildings using the Digital Fabrication (디지털 패브리케이션을 활용한 비정형 건축물의 시공공법 고찰)

  • Kim, Sung-Jin;Park, Young-Mi;Park, Sung-Jin;Park, Ki-Hong
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.11a
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    • pp.175-176
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    • 2015
  • Starting from Guggenheim Bilbao Museum in 1997, it has been increased steadily that complex geometry buildings using digital designs and construction process. Since 2010, the domestic Freeform design has been widely used for buildings such as Dongdaemoon Design Plaza, Seoul City Hall, Tri-Bowl, and etc. But there are many defects such as the increased cost and period of construction, and the declined quality of construction because of the lack of optimized method and engineering experiences. Therefore, this study has an effort to review case study of the recent freeform buildings and construction methods using digital fabrications. And this study proposed the improve method for the construction quality for freeform buildings.

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A Study on the intensity of the concrete which is made out of the steel bar and cement which is imported from foreign. (수입용 철근 및 시멘트를 사용한 콘크리트의 강도 조사 연구)

  • 이리형;정헌수;정상진
    • Proceedings of the Korea Concrete Institute Conference
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    • 1992.10a
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    • pp.70-75
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    • 1992
  • As new city apartment construction of five brought about the short of the domestic output rocal construction materials , therefore the construction materials have been in part imported from foreign, here it is important that it is ensured the warranty of the quality for the construction materials lacking K.S. mark. Therefore in this research, we are trying to grasp the degree of strength of the concrete made as the cement from china and the intensity power of the estimate for the quality of construction materials and the guide in making a construction.

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Study on Temperature History and Compressive Strength of Mock-up Concrete Considering Seasonal Change (매스콘크리트의 계절에 따른 온도이력과 압축강도에 관한 실험)

  • Kim Young-Joo;Gong Min-Ho;Kim Kwang-Ki;Yang Dong-Il;Pack Moo-Young;Jung Sang-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.11a
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    • pp.89-92
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    • 2005
  • Our country has experienced variations in temperature as belong to the area of the continental climate that shows four significant seasons. These occur quality of construction. As the hydration of cement processes, the strength of concrete is developed. In order to improve the quality of concrete, various conditions including temperature and humidity should be maintained appropriately and concrete itself should be cured sufficiently This paper is basic experiment for estimating influence of strength by seasonal mock-up concrete's heat of hydration and estimate relationship of compressive strength development by curing temperature. And show basic document as quality control.

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Ultimate strength of long-span buildings with P.E.B (Pre-Engineered Building) system

  • Lee, Seong-Hui;Kim, Young-Ho;Choi, Sung-Mo
    • Steel and Composite Structures
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    • v.19 no.6
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    • pp.1483-1499
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    • 2015
  • With the improvement of the quality of construction materials and the development of construction technologies, large-scale long-span steel frame buildings have been built recently. The P.E.B system using tapered members is being employed as an economically-efficient long-span structure owing to its advantage of being able to distribute stress appropriately depending on the size of sectional areas of members. However, in December 2005 and in February 2014, P.E.B buildings collapsed due to sudden loads such as snow loads and wind gusts. In this study, the design and construction of the P.E.B system in Korea were analyzed and its structural safety was evaluated using the finite element analysis program to suggest how to improve the P.E.B system in order to promote the efficient and rational application of the system.

An Investigation on Self Certification System of Contractors in the Taiwan High-Speed Rail Project (대만고속철도 건설사업의 시공자 자체 품질관리시스템 운영에 대한 고찰)

  • Lee, Tai-Sik;Lee, Dong-Wook;Bae, Keon;Park, Dong-Chan;Kim, Yul-Kyoo;Sunwoo, Kang;Kim, Young-Hwan;Kim, Dae-Young
    • Proceedings of the KSR Conference
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    • 2001.05a
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    • pp.30-35
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    • 2001
  • THSRC uses the self-certification system for its high-speed rail construction. The self-certification system takes advantages of obtaining good qualify in project and communicating well between contractors and QA/QC organization. But one should understand ISO 9000s and the self-certification system of contractors in advance and contractors try to control Quality of construction spontaneously. Actually, construction progress is slowed down because of increased QA/QC works. For adapting this system in domestic construction, it is need to understand ISO 9000s and the self-certification system.

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