• 한국전산구조공학회논문집
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• 제14권3호
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• pp.317-327
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• 2001

이 논문에서는 이동식 지보를 이용한 MSS공법에 의해 건설되는 콘크리트 교량의 설계 모멘트를 산정하기 위한 관계식을 제안하고 있다. 각 시공 단계에 따른 시간 의존적 거동해석을 통해 교량의 부재력 변화와 처짐 변화를 고찰하였으며 변위와 하중조건을 토대로 한 지배방정식을 구성한 후 복잡한 장기 거동 해석 없이 탄성 해석 결과를 토대로 설계 부재력과 임의의 시간 경과 후 모멘트 변화를 예측할 수 있는 관계식을 구성하였다. 나아가 다양한 예제 해석을 통해 제안한 관계식의 적용성을 검증하였으며 모멘트 포락선을 토대로 보다 합리석인 설계 부재력의 산정 방안을 소개하였다.

• Advances in Computational Design
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• 제4권2호
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• pp.179-196
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• 2019

Temporary scaffold systems in the construction site play an important role for ensuring the safety of the workers and for constructing the stable structures. To assemble the scaffold, the pipe scaffolding system, the wedge binding scaffolding system and the particular materials have been utilized. To design the material arrangement of a scaffold, firstly the configuration was determined considering the construction geometry. Then, the strength of the scaffold was confirmed and the quantity of the material was accounted. In this paper, the design method of the temporary scaffold was proposed for intending the semi-automatic procedure. In the proposed design method, the geometric design and the safety requirement were specified by the safety standard and the design flow was followed by the designer's knowledge. The size and the quantities of the materials were calculated by referring to the relation between the scaffold and the constructing structure. In the calculating procedure, three dimensional positions of each scaffold materials were calculated and recorded simultaneously. Then, three dimensional scaffold structural was drawn semi-automatically on the CAD software by using the obtained material sizes, positions and directions. The proposed design method provides us the precise quantities of scaffold materials and enables us to reduce the design effort and the cost estimation processes. In addition, the obtained results can be applied to BIM software after converting to IFC format.

• 한국산학기술학회논문지
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• 제20권9호
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• pp.121-126
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• 2019

정부와 기업에서 추진 중인 다양한 방법의 재해 저감 노력으로 전반적인 산업 재해는 감소 추세에 있으나, 건설업의 추락 재해는 줄어들지 않고 오히려 증가 추세를 보이고 있으다. 이러한 건설업의 재해 중 특히 달비계에 의한 재해는 주로 추락 재해이기 때문에 발생 시 대부분 사망사고에 이르는 중대 재해가 발생된다. 이러한 이유로 본 연구에서는 달비계와 관련하여 우선 국내외의 문헌 및 제도 / 규정 분석을 시행하였으며, 그 주요내용은 첫째, 달비계 해외기준을 참고하여 이원화 되어 있거나 규정이 없는 달비계의 규정을 별도로 작성이 요구된다는 사항을 수정하였다. 다음으로, 장비 규정, 작업 사전 계획, 교육, 관리 사항에 대한 안전 계획을 규정에 반영 하였으며, 마지막으로 이러한 안전 계획을 발주자의 주요 책무로 규정화가 필요함을 도출하였다. 아울러 이러한 달비계 재해 저감을 위하여 현장의 관련 사용 실태를 설문 조사 하였으며, 주요 결과를 활용하여 설비개선 및 작업방법 개선으로 재해 다발 요인을 사전에 인지하고, 달비계를 사용하여 공사에 참여하는 작업자 및 관계자, 감독자, 건축주 등이 재해 저감을 위한 공동의 노력을 이행하는 기준이 될 것이다.

• 한국안전학회지
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• 제8권2호
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• pp.16-22
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• 1993

Accidents, especially fatal accidents in construction work are being not reduced, but increased, despite of more concerns of related authority and companies themselves. It is investigated that major reasons of which these accident increase are caused to set up wrong temporary structures : scaffolding with insufficient components or safety guards. Approximately 50% of falling accident, one of three major accidents； falling collapsing of structures or soil, accidents from heavy equipments, are due to defects of temporary structures. Therefore, technical standards for these temporary structures made by the ministry of labour in 1984, should be promptly revised because of its insufficient considerations for structural concepts. A method to effectively ensure the construction safety are shown through an experimental method, mathematical analysis structural planning against overturning and collapsing of scaffold-ing components, consideration of safety factor in loading, formulations of safety structure against falling or dropping from schaffolding.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.194-195
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• 2021

Due to urban regeneration projects or changes in the living environment, there is an increasing need to demolish old buildings that have lost their functions. Demolition of above ground and underground structures is an important construction project that greatly affects the construction period and safety of the entire process. However, it is difficult for the safety officer to manage the demolition work due to the lack of specific and diverse data applicable to the site of the demolition plan. Therefore, in this study, items that need to be improved in structural safety when the above-ground and underground structures are demolished are reviewed and organized. For the main contents of structural safety management in demolition work, 1) structural review reflecting the order of demolition work, 2) installation and dismantling of steel pipe scaffolding and dust nets, 3) installation and dismantling of system scaffolding, 4) installation and dismantling of fall prevention nets, 5) jack support Installation and dismantling, 6) movement of equipment, movement and planning between floors, 7) equipment for demolition of structures, height of remnants, 8) site cleanup, and 9) equipment operators were categorized and arranged.

• 한국안전학회지
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• 제33권1호
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• pp.73-80
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• 2018

According to the statistics publication of KOSHA, more than half of serious accidents at the construction sites were related to the temporary works and/or the temporary structures such as scaffoldings, shores, earth retaining walls, etc. The structural failures are occurred because of the overload acting on the structures or lack of performance of the one or more members of the structures. For the prevention of the collapse accidents relating to the temporary structures at the construction sites, we have to control construction processes not to occur the overload and also to control the performance and quality of each member of the temporary structures. MOLIT has amended the "Construction Technology Promotion Act" on Jan. 7th, 2015 to ensure the structural safety of the temporary structures. According to the Act, the designers of the construction design projects should check the structural integrity of the structures including the temporary structures and the construction companies have to let 'the Relative Professionals' confirm the structural integrity of temporary structures, the shores(${\geq}5m$ high) and the scaffolds(${\geq}31m$ high), before construction. Also, MOLIT has amended the "Regulation for Construction Technology Promotion Act" on Jul. 4th, 2016 for quality management and testing of temporary equipments. According th this regulation, the construction companies and supervisors should manage and test the temporary equipments before using them. In this paper, the standard drawings of the shores(< 5 m high) and the scaffolds(< 31 m high) and the amended "Business Guideline for Quality Management of Construction Work" are presented. As the result of this study, MOLIT noticed the amended "Business Guideline for Quality Management of Construction Work" on Jul. 1st, 2017.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.241-242
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• 2023

This paper discusses an innovative acoustic membrane developed by doAZ Co., Ltd., offering enhanced noise barrier and dust control for urban construction and demolition, surpassing the performance of traditional non-woven fabrics. The membrane is made from recyclable bubble sheets and designed to be seamlessly integrated into single and double-row scaffolding systems, ensuring broader applicability and sustainability.

• 한국건설관리학회논문집
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• 제20권6호
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• pp.81-88
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• 2019

최근 정부는 재해 절감을 위한 다양한 노력덕분에 산업과 건설업 전반에 걸쳐 재해 사고는 감소추세를 보이고 있다. 그러나 건설업에서의 추락재해는 감소하지 않고 오히려 증가하고 있다. 특히, 달비계에 의한 추락재해는 매년 발생빈도는 낮지만 발생 시 작업자의 사망과 직결한다는 측면에서 재해강도가 매우 크다고 할 수 있다. 국내 건설업에서의 달비계 작업환경은 매우 열악하다. 더욱이 소규모 건설현장에서의 달비계 작업자들은 안전에 대한 감독과 관리를 받을 수 있는 주체가 없다. 따라서 본 연구는 본 연구를 진행하면서 달비계 추락재해 예방을 위해 가장 근본적으로 개선되어야 할 문제점인 수직구명줄 미설치 및 미부착이다. 또한 로프 풀림, 로프 파단, 고정점불량 등의 다양한 재해발생 원인에 대한 규명을 통해 건설현장 가설공사의 재해예방을 위한 해결방안이 되었길 희망한다.

• Journal of Trauma and Injury
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• 제19권2호
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• pp.183-187
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• 2006

An increase has been see in fall injuries at construction sites and in penetrating injuries by iron bars or pipes associated with the fall. In particular, a thoraco-abdominal penetrating injury had the worse prognosis, and multiple organ injury occurred because of blunt trauma associated with fall. Iron bars were the most common penetrating materials, and pipe penetrating injuries were uncommon. However, because the diameter of the pipes were large than those of the bars, penetrating injuries associated with pipes were more often fatal. A secondary thoraco-abdominal injury worsened the prognosis. We reported a case of a 33-year-old man with a thoraco-abdominal trauma secondary to a penetrating injury with a scaffolding pipe following a fall.

• 한국안전학회지
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• 제36권4호
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• pp.29-36
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• 2021

The allowable strength based on experiments and the design allowable strength calculated using the design criteria were compared, which suggested a ratio between the allowable strengths for the reused vertical members of the system scaffolding and system support. By investigating a total of 421 certification reports for reused vertical members, the experimental allowable strengths were collected. Using design criteria such as the road bridge design and KDS 14 30 10, the design allowable strengths were calculated for various slenderness ratios. For the system scaffolding, the average ratio between the experimental and design allowable strengths was calculated to be 0.880 by assuming a normal distribution for all specimens. However, by analyzing the strength ratio according to the slenderness ratio, the lowest average strength ratio was found to be at least 0.844. Therefore, it is reasonable to assume that the allowable strength of the reused vertical members was 80-84% of the design allowable strength. In addition, assuming the allowable strength to be 85% of the design allowable strength is a possible method for reused vertical members of system supports.