• Title/Summary/Keyword: Construction defects

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Analysis of the Contemporary Fashion Research Cases for Handicapped People Since 2000 (2000년대 이후 장애인 의복 연구 사례에 관한 분석)

  • Kim, Kyung-A
    • Journal of the Korean Society of Clothing and Textiles
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    • v.42 no.2
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    • pp.298-310
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    • 2018
  • This study examines how to improve clothes according to types of disability and classify related studies. The study method used a literature review along with studies conducted after 2000. According to the results, the types of disability causing difficulty in terms of clothing habits are limb disorders and sensory defects among the types of physical disability. The results of the quantitative measurement on studies indicated that the number of studies increased almost twice as much before 2000. Particularly with the development of new technology and fashion trends, the number of studies on design increased. The topics of studies are found in design development, construction for disabled, and understanding clothing life. The design development topic is about suggesting functional designs that can protect the human body or aid in the use of rehabilitation devices. The construction topic for the disabled is to improve the inconvenience of wearing clothes, particularly for those with limb disorders. Lastly, the topic of examining clothing life is about using new technology to provide individuals with sensory defects with information about clothing life or the current status of the clothing market for the disabled.

Repair method application for micro-cracks of less than 0.3 mm width in residential apartment buildings (공동주택에 발생되는 0.3mm미만 미세균열의 보수공법 적용을 위한 근거 마련 기초연구)

  • Park, So-Young;Yoo, Jae-Yong;Kim, Soo-Yeon;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.105-106
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    • 2018
  • Cracks are typical defects that occur in concrete structures. When cracks occur in the structure, durability reduction, concrete neutralization, and steel corrosion cause functional safety problems. In order to prevent such cracks, surface repair method is performed for cracks smaller than 0.3 mm and rechargeable method is performed for cracks larger than 0.3 mm. However, even if it is applied by the surface repair method at less than 0.3 mm, re-leakage cracks continue to occur. Recently, the Supreme Court ruled that the rechargeable method should be applied to cracks less than 0.3mm in order to reduce the occurrence of defects. However, it was considered that the repair fees were too high relative to the observed defect rate, resulting in a necessitation of modifying the existing construction analysis administration standards. This study analyzes the differences in the subjective views on the durability degradation with regards to surface repair methods in concrete structures.

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A Study on the Building of Defect Information DB Management System of Apartment House for Defect Prevention (하자예방을 위한 공동주택의 하자정보DB관리시스템 구축에 관한 연구)

  • Jang, Hyo-Seong
    • Journal of the Society of Disaster Information
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    • v.9 no.3
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    • pp.300-314
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    • 2013
  • Defects on apartment which is one of the major residential types in Korea have produced unexpected inconveniences to owners of apartments. If construction companies paid more careful attention to defect information management, a lot of flaws could be prevented. In this situation, this study attempted to seek improved defect information DB management system. First, research on defect information DB management system of large construction firms was conducted to confirm necessities of improved system. Following survey showed problems of current defect information DB management system and the need of improvement. The study came up with remedies expected to contribute to preventing faults.

The Construction of Quality Inspection System for Sunroof Sealer Application Process Using SVM Algorithm (SVM 알고리즘을 활용한 선루프 실러도포 공정 품질검사 시스템 구축)

  • Yang, Hee-Jong;Jang, Gil-Sang
    • Journal of the Korea Safety Management & Science
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    • v.23 no.3
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    • pp.83-88
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    • 2021
  • Recently, due to the aging of workers and the weakening of the labor base in the automobile industry, research on quality inspection methods through ICT(Information and Communication Technology) convergence is being actively conducted. A lot of research has already been done on the development of an automated system for quality inspection in the manufacturing process using image processing. However, there is a limit to detecting defects occurring in the automotive sunroof sealer application process, which is the subject of this study, only by image processing using a general camera. To solve this problem, this paper proposes a system construction method that collects image information using a infrared thermal imaging camera for the sunroof sealer application process and detects possible product defects based on the SVM(Support Vector Machine) algorithm. The proposed system construction method was actually tested and applied to auto parts makers equipped with the sunroof sealer application process, and as a result, the superiority, reliability, and field applicability of the proposed method were proven.

Correlation between Board Mortar and Defect Occurrence Rate in Apartment Bathroom Wall Tile (공동주택 욕실 벽타일 뒤채움과 하자발생량의 상관관계분석)

  • Hong, Ki;Nam, Dong-Hee;Koo, Kyo-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.55-56
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    • 2023
  • The number of defect disputes occurring in apartment houses is increasing year by year, and among them, disputes caused by defects in tiles account for 28.2% of the total, which is an important defect in tiles. A representative tile defect in the defect dispute is the lack of tile backfill. Another dispute occurred that the standards for each organization are different as the 100% standard of the Ministry of Land, Infrastructure and Transport's building construction standard and 80% standard of the Architectural Institute of Korea's Building Technology Guidelines. In this study, it was analyzed the relationship between the amount of tile backfill and the amount of tile defects based on 100 defect litigation court appraisal documents. It was observed that the amount of defect in tile works tended to decrease as the amount of tile backfill increased. By presenting an appropriate amount of mortar to fill behind tiles in a defect dispute, the effect of reducing the defect dispute can be expected.

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Study on Development of Management Tools for Technological Document in the Field of Construction (건설 기술문서 관리 도구 개발에 관한 연구)

  • Lee, Tai-Sik;Lee, Dong-Wook;Jun, Young-Joon
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.354-358
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    • 2006
  • In addition to documents or technologies at working place, the importance of technology management riese through increasing know-hows. In particular, in the field of construction, a variety of management systems including ERP and PMIS have been introduced since 90's. Therefore, the range of shared information extends to construction grounds, headquarters or even to collaborating companies. It means that the competitiveness of companies depends on the efficient management of technological documents in the field of construction. Accordingly, this study shows the purpose to develop the construction system which save, search and share technological information in order to improve any problem of current construction systems. The construction system offers you both the searching function and the viewing function for various information. In addition, the system contains the highlighting function to know if any information is available. The Construction system is possible to be used with current systems at the same time because is is designed to make up for them. In addition, it is expected to solve their problems and supplement their defects.

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Amendment for Plasterboard Partition Wall of LH Construction Specifications (LH 전문시방서의 석고보드 복합패널 관련 개정(안))

  • Choi, Soo-Kyung;Yoon, Sang-Chun;JI, Suk-Won
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.11a
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    • pp.213-214
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    • 2019
  • In order to apply the drywall system to the interior wall of the post & beam structure, the existing detail drawings and construction specifications must be revised. LH selected drywall systems suitable for post & beam apartment housings and revised their standard detail drawings and construction specifications. This paper describes the major revision of the plasterboard partition wall in the LH construction specifications and standard detail drawings. The main policy of the revision work was to prevent defects by ensuring the construction quality and to eliminate adverse effects on the subsequent processes.

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A Fundamental Study on the Causes of Defects in Landscape Construction Projects Based on the Ratio of In-House and Supplied Materials -Focused on Incheon Metropolitan City- (조경공사업에서 관급자재·사급자재 비율에 따른 하자 원인에 대한 기초연구 -인천광역시 사례를 중심으로-)

  • Sang-Won Hwang;Sung-Jin Yeom;Chung-In Park
    • Journal of Environmental Science International
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    • v.32 no.11
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    • pp.821-831
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    • 2023
  • Recently, landscaping construction has played a significant role in enhancing the quality of life for citizens by creating and maintaining outdoor spaces. However, landscaping projects vary in material procurement depending on the contracting method, and they also present various challenges in defect occurrence and defect rectification due to their specialized nature. In this study, we classified different types of projects based on material procurement ratios and conducted on-site assessments of defect status by specific processes. We also analyzed the itemization of material ratios and defect rectification costs. The results revealed it was found that projects with a higher proportion of government-provided materials had the poorest defect status in terms of planting works and also incurred the highest defect rectification costs. Moreover, conflicts concerning the responsibility for defects arose. Currently, there are no specific guidelines for setting standards for the proportion of government-provided materials in landscaping construction contracts. Furthermore, there is ambiguity in the management of defect rectification. Therefore, it is necessary to establish a systematic landscaping construction contracting framework by providing institutional guidelines tailored to local governments or the circumstances of contracting entities and to conduct thorough reviews of construction processes.

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 construction technology for major building material to reduce indoor air pollution (실내오염물질방출저감을 위한 주요건축자재의 시공기술에 관한 연구)

  • Heo, Jung-Yong;Choi, Chang-Ho;Ann, Hyung-June;Lee, Yun-Gyu
    • Proceedings of the SAREK Conference
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    • 2007.11a
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    • pp.143-148
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    • 2007
  • Recently indoor air pollution caused by exposing hazardous chemicals (VOCs, formaldehyde) due to undiscriminated use of new construction materials and air-tightness to save energy is becoming a big issue. We have developed technologies to estimate the amounts of contaminants from constructions materials and method. We have further developed construction technologies to reduce and characterize these contaminants. The developed technologies were then refined to eliminate defects through considering field applicability.

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