최저통합환산가격 개념을 적용한 기술제안 기반 입찰제도

조건희,강승희,이정석,손정락,방종대,Cho, Gun-Hee,Kang, Seung-Hee,Lee, Jeong-Seok,Sohn, Jeong-Rak,Bang, Jong-Dae 한국건설관리학회 2010 한국건설관리학회 논문집 Vol.11 No.2

최근 도시내 기반시설이 노후화된 불량지구에 거주하는 사회적 약자(저소득층, 도시빈곤층)가 도시재생과정에서 지불능력한계 등에 의하여 재정착하지 못하고 있는 문제는 사회적 이슈로 부각되고 있다. 이에 본 연구에서는 사회적 약자의 재정착을 위한 방안 중 하나로 '입찰가격 최적화 및 생산비용 절감', '공기단축을 통한 비용절감', '적정 품질 만족'을 목적으로 한 '최저통합환산가격(입찰가격+공사기간환산가격) 개념의 기술제안 기반 입찰제도'를 제시하였으며, 이는 프로젝트단위 기술제안, 공종단위 기술제안, 공기단축 기술제안을 기반으로 이루어진다. 본 연구에서 제안한 최저통합환산가격 개념의 기술제안 기반 입찰제도는 공기단축에 의한 추가적인 인력 및 장비의 투입과 품질향상 등에 의하여 직접비는 상승되나 공기단축에 의한 발주자 비용, 감리비, 원주민 보상비에 대한 이자비용, 간접비, 이자 지급비, 물가 상승비 등의 절감이 기대된다. 이와 더불어 공기단축 및 공사비 절감 관련 기술 지식의 축적은 향후 프로젝트 공사비 및 공사기간 최적화가 가능함은 물론 국가 및 기업 경쟁력 향상이 기대된다. Recently, resettlement problems of low income groups in the urban regeneration area have been issued in Korea because they have no capability to purchase (or lease) redeveloped housing (or apartment). There are several approaches for supplying affordable housing and one of these is the bidding system which can reduce construction cost. However, the lowest bidding system has many problems such as dumping and substandard quality. In this context, this study proposed bidding system based on technical proposal applying the concept of the lowest total combined bid price for optimization of bid price, reduction of construction cost and period, and maintenance of suitable quality. This bidding system embraces the best value and cost plus time concept on the basis of an improved lowest price bidding system. It consists of the following components: work unit based, project unit based, and period reducing technical proposals. The proposed bidding system for determining bidders are designed to evaluate the adequacy of each technical proposal in the order of the combined minimum price in an effort to effectively optimize bid prices and reduce the construction periods, as well as to maintain a minimum appropriate quality.

안드로이드 시간 조작 취약점과 보안 문제

조건희 ( Gun-hee Cho ),이연준 ( Yeonjoon Lee ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.1

공동주택 에너지 경제성평가에 영향을 미치는 평가인자 도출 방안 연구

조건희 ( Cho Gun Hee ),김길태 ( Kim Gil Tae ),김경식 ( Kim Kyoung Sik ),김종엽 ( Kim Jong Yeob ) 한국구조물진단유지관리공학회 2015 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.19 No.1

음향 Air-Gap 공격의 최신 동향과 실용성에 대한 연구

조건희 ( Gun-hee Cho ),이연준 ( Yeonjoon Lee ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2

본 논문은 에어갭 (물리적 분리된 네트워크 환경) 공격 벡터 중 음향 신호를 중점적으로 다루며, 음향 신호 공격 벡터에 대한 연구 동향과 실제 사용 가능성을 조사한다. 연구 결과, 에어갭 공격은 높은 수준의 스텔스와 무결성이 필요하며, 환경적 제약과 사회적 요소도 고려해야 한다. 또한, 실제 공격에는 다단계 프로세스와 통합된 모듈이 필요하며, 이러한 조건을 충족하는 공격은 제한적일 것으로 보인다. 제한적인 공격이 실제로 가능하더라도, 공격 성공 시 파급력이 크기 때문에, 본 논문은 에어갭 보안에 대한 중요성을 강조하며, 공격을 무력화 할 수 있는 높은 보안 수준을 유지하기 위한 연구와 대응책이 필요함을 강조한다.

공동주택 에너지 효율화에 영향을 미치는 경제성 평가인자 도출 및 적용방안에 관한 연구

조건희(Cho, Gun-Hee),김길태(Kim, Gil-Tae),김종엽(Kim, Jong-Yeob) 한국건축친환경설비학회 2016 한국건축친환경설비학회 논문집 Vol.10 No.1

In this paper, derived assessment factors that may affect the orientation for the ECM (Energy Conservation Measure) List making. First we derive the key elements of economic evaluation in terms of performance, energy based on the practical design of the apartment houses. Secondly, in order to set the factors for the energy performance rating, the parameters related to domestic institutions(Eco-housing construction standards and performance evaluation guidelines, Energy-saving plan design standards, Green standard for energy and environmental design, Building energy rating system) were analyzed. Thirdly, analyzed the factors related assessment economic evaluation and energy performance evaluation were derived by an economic evaluation factors affecting energy efficiency. The results are divided into classification schemes, such as construction, electrical and mechanical equipment, renewable energy. The factors of the construction part are windows/doors, glass, insulation and so on, the electrical and mechanical part are high-efficiency lighting equipment, high-efficiency electric equipment, ventilation, cooling and heating system, hot water supply system, duct/pipe insulation and so on, and the renewable energy part is renewable energy system. In addition, derived economic evaluation factors affecting the energy efficiency of apartment houses and suggested apply to it.

차세대 장수명 공동주택의 가변성능향상을 위한 건축요소기술 우선순위결정에 관한 연구

이정석,조건희,손정락,김재준,Lee, Jeong-Seok,Cho, Gun-Hee,Sohn, Jeong-Rak,Kim, Jae-Jun 한국건설관리학회 2009 한국건설관리학회 논문집 Vol.2 No.3

최근 가변성능에 관하여 공간, 재료, 구조, 공법 등 건설 산업 전반에 걸쳐 많은 연구가 진행 중이며, 이와 더불어 공동주택의 노후화 문제로 인하여 건축요소기술의 개발이 가속화되고 있다. 이에 따라 본 연구에서는 최근 사회적으로 부각되고 있는 가변성능에 관한 공동주택의 요소기술 선정 및 대상사례를 중심으로 한 설문조사와 전문가 의견을 거쳐 건축요소기술의 평가항목을 1차적으로 선정하고자 한다. 그리고 선정된 건축요소기술 항목 중에서 타당성 및 객관성 검증절차를 통하여 건축요소기술을 재정립 및 분류하고, 최종적으로 적용 가능한 다양한 건축요소기술 가운데 우선순위가 높은 항목들을 결정하여 분석 및 평가함으로써 향후 장수명 공동주택의 가변성능향상을 위한 지침을 제시하고자 한다. Recently, lots of the research aspects of space, materials, structure, construction method relation to improving the flexibility going on throughout the construction industry, moreover the development of construction key technology has been accelerating by reason of deterioration in the apartment housing. Therefore, this study should firstly suggests assessment list of construction key technology through investigation of questionnaire and consultation of the expert on the basis of case studies, and should select it about the flexibility which making social issues lastly in the apartment housing. Secondly, this study should classify, reestablish core technology through inspection procedure of feasibility study among lists of deduced key technology. Finally, this study will suggest the manual & guideline for improving the flexibility for a long-life apartment housing at the next generation by selecting, analyzing and estimating higher score items of all key technology.

설계의 안전성 검토를 위한 건설공사의단위작업 분석: OO공사의 발주공사를 중심으로

김진원,조건희,송상훈,방종대,손정락,Kim, Jin-Won,Cho, Gun-Hee,Song, Sang-Hoon,Bang, Jong-Dae,Sohn, Jeong-Rak 한국토지주택공사 토지주택연구원 2016 LHI journal of land, housing, and urban affairs Vol.7 No.4

Recently, Ministry of Land, Infrastructure and Transport has amended the law to Design for Safety in working design stage of construction work. There should be informed the disaster likelihood and severity of unit-works to decide risk of unit-works in Design for Safety. Therefore, the construction disaster data of ${\bigcirc}{\bigcirc}$ corporation were classified as 24 unit-works and the disaster likelihood and severity of unit works were analyzed in this study. The safety management level of unit-works which based on analysis data was suggested 3 groups; special management and emphasis management, regular management. The results of this study can be used as basic information to perform Design for Safety in construction. And this information will be able to reduce the disaster. 최근 국토교통부는 실시설계 단계에서 설계의 안전성 검토를 실시할 수 있도록 건설기술진흥법을 일부 개정하였다. 설계의 안전성 검토에서 위험성을 판단하기 위해서는 단위작업별 재해의 발생빈도수와 심각성을 파악해야 한다. 따라서 본 연구에서는 ${\bigcirc}{\bigcirc}$ 공사의 건설재해자료(471건)를 24개 단위작업으로 분류하고, 각 단위작업별 재해발생 빈도수 및 심각성을 분석하였다. 그 결과를 토대로 단위작업별 안전관리 수준을 3개 그룹(특별관리, 중점관리, 상시 관리)으로 제안하였다. 본 연구결과는 건설공사에서 설계의 안전성 검토를 하는데 있어 기초정보로 활용될 수 있을 것이다. 또한 이 정보를 활용하여 재해발생률을 저감시킬 수 있을 것으로 판단된다.

임대주택단지의 생활안전 위해요인 해소방안

손정락,조건희,김진원,송상훈,Sohn, Jeong-Rak,Cho, Gun-Hee,Kim, Jin-Won,Song, Sang-Hoon 한국토지주택공사 토지주택연구원 2017 LHI journal of land, housing, and urban affairs Vol.8 No.1

The government has been constructing and supplying public rental housing to ordinary people in order to stabilize housing since 1989. However, the public rental houses initially supplied to ordinary people are at high risk for safety accidents due to the deterioration of the facilities. Therefore, this study is aimed to propose a solution to solve the life safety hazards of the old rental housing complex as a follow-up study of Analysis of Accident Patterns and Hazard Factor for Life Safety in Rental Housing Complex. Types of life safety accidents that occur in public rental housing complexes are sliding, falling, crash, falling objects, breakage, fire accidents, traffic accidents and criminal accidents. The types of safety accidents that occur in rental housing complexes analyzed in this study are sliding, crashes, falling objects, and fire accidents. Although the incidence of safety accidents such as falling, breakage, traffic accidents and crime accidents in public rental housing complexes is low, these types are likely to cause safety accidents. The method of this study utilized interviews and seminar results, and it suggested ways to solve the life safety hazards in rental housing complexes. Interviews were conducted with residents and managers of rental housing complexes. Seminars were conducted twice with experts in construction, maintenance, asset management, housing welfare and safety. Through interviews and seminars, this study categorizes the life safety hazards that occur in rental housing complexes by types of accidents and suggests ways to resolve them as follows. (1) sliding ; use of flooring materials with high friction coefficient, installation of safety devices such as safety handles, implementation of maintenance, safety inspections and safety education, etc. (2) falling ; supplementation of safety facilities, Improvement of the design method of the falling parts, Safety education, etc. (3) crash ; increase the effective width of the elevator door, increase the effective width of the lamp, improve the lamp type (U type ${\rightarrow}$ I type), etc. (4) falling objects and breakage ; design of furniture considering the usability of residents, replacement of old facilities, enhancement of safety consciousness of residents, safety education, etc. (5) fire accidents ; installation of fire safety equipment, improvement by emergency evacuation, safety inspection and safety education, etc. (6) traffic accidents ; securing parking spaces, installing safety facilities, conducting safety education, etc. (7) criminal accidents; improvement of CCTV pixels, installation of street lights, removal of blind spots in the complex, securing of security, etc. The roles of suppliers, administrators and users of public rental housing proposed in this study are summarized as follows. Suppliers of rental housing should take into consideration the risk factors that may arise not only in the design and construction but also in the maintenance phase and should consider the possibility of easily repairing old facilities considering the life cycle of rental housing. Next, Administrators of rental housing should consider the safety of the users of the rental housing, conduct safety checks from time to time, and immediately remove any hazardous elements within the apartment complex. Finally, the users of the rental housing needs to form a sense of ownership of all the facilities in the rental housing complex, and efforts should be made not to cause safety accidents caused by the user's carelessness. The results of this study can provide the necessary information to enable residents of rental housing complexes to live a safe and comfortable residential life. It is also expected that this information will be used to reduce the incidence of safety accidents in rental housing complexes.

임대주택단지의 생활안전 사고유형 및 위해요인 분석

손정락,방종대,조건희,김진원,Sohn, Jeong-Rak,Bang, Jong-Dae,Cho, Gun-Hee,Kim, Jin-Won 한국토지주택공사 토지주택연구원 2016 LHI journal of land, housing, and urban affairs Vol.7 No.3

정부는 서민들의 주거안정을 위해 1989년부터 공공임대 주택을 지속적으로 공급하고 있다. 하지만 노후 공공임대 주택들은 시설물의 노후화로 인해 안전사고가 발생할 가능성이 높은 편이다. 따라서 본 연구에서는 공공 임대주택단지 내에서 발생하는 생활안전 사고의 유형을 조사하고, 각 유형별 위해요인을 분석하였다. 본 연구의 진행방법은 먼저 선행연구와 인터뷰조사를 통해 아파트단지 내에서 발생하는 생활안전 사고의 유형을 파악하였다. 그리고 설문조사를 통해 공공 임대주택단지에서 주로 발생하는 생활안전 사고의 유형을 파악하고, 사고유형별 생활안전 위해요인을 분석하였다. 본 연구의 결과는 공공임대주택 거주자들이 안전하고 편안한 주거생활을 위해 계획적이고 체계적인 관리를 위한 계획관리의 기본정보가 될 것이며, 향후 신규 임대주택공급 시 설계 및 관리방법 개선의 기초정보로 유용할 것이다. The government has been supplying public rental housing for stable life of low-income group since 1989. However, deteriorated public rental housing are likely to caused accident due to aging facilities. In this study, investigated the types of accidents that occur in the public rental housing and analyzed the hazard factors for each type. First, identified the type of accidents that occur in apartment through previous studies and interviews. Next determined the type of accidents that occur in public rental housing and analyzed the hazard factors through surveys. The results of this study would be basic information of planned and systematic management plan for safe and comfortable residental life in public rental housing. And it can be utilized on the basis information that can improve the design and management method to supply future public rental housing.

아파트 가격에 내재된 친환경 요소의 가치 측정에 관한 연구

고현(Ko Hyun),조건희(Cho Gun-Hee),이윤선(Lee Youn-Sun),김재준(Kim Jae-Jun) 대한건축학회 2007 大韓建築學會論文集 : 構造系 Vol.23 No.12

Resent, interest in eco-friendly building and in well-being of residents is socially increasing. The purpose of this study was to estimate the value of eco-friendly factors within an apartment housing prices focused on the new town ‘Pyong-chon'. The process classifies items of eco-friendly factors through certification system and preceded studies of eco-friendly building. And the following extracted priority ranking of important eco-friendly factors impacting on apartment housing prices through a interview and question research, analyzed influence of eco-friendly factors through hedonic price model and regression of SPSS 12.0. Findings of this study can provide valuable information for a criterion of decision making to consumer and a marketing strategy of housing construction company.