• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.6-7
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• 2018

Although the importance of the construction lift is increasing, no improvements are being made to its operating system. This study proposed an optimal call-response algorithm of the construction lift for high-rise building construction by using image sensing technology, height measuring sensor, and load cell. This algorithm makes turn-around decision of the construction lift by considering the information and the number of user. It occurs when the call comes from a floor where the construction lift already have passed. The purpose of this study is to reduce the total latency of the construction lift user. Furthermore, it is possible to prevent delay in construction duration by carrying out a priority operation of the construction lift for the critical workforce.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.72-73
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• 2014

Recently the concurrent construction method of framework and windows work has been applied for early beginning of exterior finishing works in tall building construction. However, the conventional method makes difficulties in auto-climbing of gang-form and climbing work of lift car since the removal of ACS(auto climbing system) should be preceded for operation of lift car up to the top floor. This study propose a concept model of integrated ACS and lift car system to resolve these problems and begin windows works early in tall building construction.

• Magazine of the Korea Institute for Structural Maintenance and Inspection
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• v.21 no.1
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• pp.4-13
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• 2017

• Korean Journal of Construction Engineering and Management
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• v.5 no.4 s.20
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• pp.71-78
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• 2004

In this study, the concept of Just-In-Time, Lean Construction and Supply Chain Management have been applied to furniture works of high-rise residental building. For the purpose of systematic furniture work planning, it should be established to analyse furniture-work process from design phase through contract, and procurement to construction phase. The analysis of process and data for furniture-work provides the roles of conducting subjects and presents management items at each phase. This proposal will provide the systematic furniture-work managements and reduce construction time and cost, and also raise the quality of furniture works.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.622-625
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• 2003

The purpose of the study is to propose a simple formula of lifting times of finishing materials on establishing the high-rise complex building, it is expected to help the efficient planning of lifting. The planning of lifting the finishing materials becomes important as the buildings get higher. The efficient level of lifting times has been calculated from 'Packaging' to improve the existing studies on the planning of lifting ; 'Packaging' means 'Making a bundle as one unit' basing on the characteristics of the individual materials. The simple formula has been produced regarding two variables of the typical floor area and the number of rooms per area.

• Korean Journal of Construction Engineering and Management
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• v.9 no.3
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• pp.118-125
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• 2008

In Korea, five days per week system, duration reduction bidding system, and post sale system have recently stimulated an interest in productivity improvement in construction project. However, analysis result of productivity in Korean construction industry found that the productivity is too low. APC (Architectural PC) is alternative of reveal wall and parapet in apartment housing prcjects and is used abroad broadly because of duration reduction for productivity improving. APC is used as external curtain wall in Dubai, North America, and Southeast Asia. Therefore, it is proposed that necessary to Introduce APC in Korea. The objective of this study is to draw up introduction of APC in apartment housing projects. We analysed the feasibility of the use of APC. The survey results reported that APC would be able to improve the productivity in the eight productivity factors.

• 월간 기계설비
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• no.2 s.211
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• pp.65-70
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• 2008

두산건설(주)은 1960년 동산토건으로 시작, 해외공사 및 국내 유수의 시공실적과 함께 지난 반세기에 걸쳐 앞선 기술과 품질로 건설산업을 이끌어 왔다. IMF당시 과감한 구조조정을 단행 하였고, 두산개발, 고려산업개발을 인수합병한 후 외형적인 성장 뿐 아니라 내실경영에 만전을 기하고 있다. 또한 시장환경변화에 대한 중장기 성장동력으로 복합개발사업, SOC민자사업, 도시개발사업 등 디벨로퍼(Developer)형 사업확대를 중점적으로 추진할 계획이며 이 중 복합개발사업은 후발주자로 시장에 진입했지만 지난해 1조3,000억원의 물량을 확보하는 등의 성과를 거둬 앞으로의 사업전망이 밝을 것으로 예상하고 있다. 두산건설(주)은 최근 부산 해운대에 아시아 최고 높이인 80층 주상복합아파트를 분양함으로써 초고층건물 시장에서의 입지를 다지고 있다.

• Korean Journal of Construction Engineering and Management
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• v.18 no.2
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• pp.58-70
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• 2017

The planning for material lifting operations is one of the key processes in high-rise building construction. Several previous studies have used rough calculations by referring to existing practices or establishing a target value for lifting cycle time or operating rate. Therefore, the purpose of this study is to propose a material lifting process optimization method for reducing the lifting cycle time and increasing the operating rate. In this study, we improve the cyclic operation network (CYCLONE) modeling method that considers the duration and zone information of each work task. This method can be used to hand over work tasks to another crew group in the work process. According to this methodology, this study optimizes the material lifting process, performs a sensitivity analysis, and evaluates the field applicability of the proposed material lifting process optimization method. Therefore, the optimized process was then applied to a high-rise building construction site. The lifting work process time and operating rate for the simulated as - is lifting process data, optimized process data, and field application result data were compared for each lifting height. From this comparison, the effectiveness of the optimization methodology was confirmed.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2006.05a
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• pp.129-132
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• 2006

Recently, Society increasingly need the hish-rise building because of urban population concentration. and The hish-rise building need new systematic work-planning method. but it didn't use the construction project's work plan and management. his paper investigated efficient work-planning method. and the work-planning method in using domestic High-rise building's structure work. A investigated result is TACT, DOC LOB etc. and domestic using method is 3day and 4day-Cycle among the Tact. This paper is to compare and analysis two method. a purpose of paper is to analyse application through the case of using the work-planning method. also To find efficient method.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.539-542
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• 2004

Nowadays, High-rise building becomes higher and bigger than ever. As a result, lots of construction materials are needed at the same times. Because of divided diverse process of construction, several different Processes concur simultaneously with complexity of procurement. So, effective construction material supply and lift-up are essential part of the spot. Especially, when ending part of construction, there are much conflict between finishing and equipment materials also problems of folding lift-up. The Purpose of this paper is suggesting better effective lift-up system through analysis of loading factors.