• 한국건설관리학회논문집
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• 제23권6호
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• pp.89-100
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• 2022

최근, OSC(Off-Site Construction)기반 PC구조의 활성화를 위한 제도적 기반 마련의 일환으로 적정공사비 산정에 필요한 품셈 개발을 요구받고 있다. PC공법의 공사비는 공장제작-운반-현장설치의 단계로 구성된다. 최근 운반과 현장 설치는 부재(subsidiary materials)별 현장실태 조사 결과를 반영한 표준품셈 체계(standard product calculation system)를 제시하는 등 관련 연구가 진행되고 있다(Lee et al., 2021). 반면, 공장 제작 공사비 산정과 관련된 연구는 전무한 실정이다. 본 연구에서는 PC 공법의 공장제작 공사비 산정기준 마련을 위해 공장 제작 환경에 활용할 수 있는 품셈 체계를 제시하였다. 이를 위해 시공절차에 따른 작업 공종을 도출하였으며, 공종별로 연계된 표준품셈을 분석하여 작업 특성에 적합한 표준 투입인력을 산출하였다. 품셈 체계는 PC부재의 현장설치와 동일하게 기둥, 보, 벽체, 슬래브 부재로 구성하였으며, 공종별 기능공을 기준으로 부재별 기본공수를 제시함으로서 직접노무비의 산출이 가능하도록 하였다. 또한, 개별 부재의 규격(m³)에 따라 생산성이 변화되는 특성을 고려하여 부재 크기를 품의 할증 요소로 제시하였다. 본 연구결과는 현재 견적에 의해 재료비료 계상되는 PC공법의 공장제작 비용을 객관적으로 검증할 수 토대 마련에 기여할 수 것이다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.83-84
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• 2018

3D printing technology can be applied to various industries, and is trapped by major technologies that change existing manufacturing processes. 3D printing materials must satisfy designability, economy and productivity, and building materials are required to have strength and economy secured technology. 3D printing technology of construction field can be divided into structural materials and internal and external materials, and is mainly done by extruding and adapting. Particularly when it is applied as an exterior materials, it is mainly applied to an unstructured exterior materials and high accuracy is required. The exterior materials can be used as a cement composite materials, it is suitable also for a lamination type, and the role of a cement base bonding material is important. In this research, we developed a cementitious base binder applicable as a 3D printing exterior materials, confirmed density and strength characteristics for application as an exterior materials, a flame retardancy test for improving the fire resistance of buildings and confirmed its possibility.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.116-117
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• 2019

3D printing technology can be applied to various industries, and is trapped by major technologies that change existing manufacturing processes. 3D printing materials must satisfy designability, economy and productivity, and building materials are required to have strength and economy secured technology. 3D printing technology of construction field can be divided into structural materials and internal and external materials, and is mainly done by extruding and adapting. Particularly when it is applied as an exterior materials, it is mainly applied to an unstructured exterior materials and high accuracy is required. The exterior materials can be used as a cement composite materials, it is suitable also for a lamination type, and the role of a cement base composite material is important. In this research, we developed a cementitious base binder applicable as a 3D printing exterior materials, confirmed high temperature strength characteristics for application as an exterior materials of buildings and confirmed its possibility.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2003년도 학술.기술논문발표회
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• pp.107-111
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• 2003

The need for this study must be considerable, as being activate of green roofs research that the organization and construction obtain access to more development technologies. Nevertheless, the green roofs system has begun to apply since 1980's, the green roofs technology was restricted to develop without verification of technologies such as a load or water leakage. There is a limit as urethane waterproofing to almost domestic waterproofing materials and methods of construction for general green roofs. The introduction of materials and methods of construction which are appropriated to property of green roofs could be a decisive factor in a long-range durability and economical maintenance cost, moreover. it support to variety construction system and organization. This present paper describes a necessity of waterproofing and root barrier system is one of the sub-organization based on green roofs construction. which have enormously large impact on the durability.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.505-510
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• 2007

Concrete track will be constructed in Gyungbu High Speed Railway II(GHSR II) stage construction site from Daegu to Busan. Concrete track is supported by substructure consisting of the original ground and embankment and does not allow the settlement of track because of its structural type. The embankment is composed of rock and soil mixture and settlement is feasible. So management of settlement of embankment is key point in successful construction of the concrete track. Compaction management of mixed fill materials is important in minimizing the settlement of embankment. In this study, in order to assess the compaction characteristics of mixed fill materials, large laboratory compaction tests were conducted. Mixed fill materials were obtained from two construction sites in GHSR II construction site. Modeled mixed fill materials having different rock type, fine content, maximum particle diameter, and moisture contents were prepared. From the test results, compaction characteristics of mixed fill materials were analysed.

• 한국농공학회지
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• 제15권2호
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• pp.3031-3038
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• 1973

The aggregate materials being scottored in districts of the country were investigated to provide the data to the Consturction worker who are working without quality tests of construction materials in the small scale land consolidation, farm building construction and new village Construction projects in the country. Also results of the survey will be helpful to those who want to devise a succerrful plan in concrete execution by means of specifying a standard and technical treatment of construction materials.

• Journal of Construction Engineering and Project Management
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• 제7권1호
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• pp.37-49
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• 2017

The Jinshanling section of the Great Wall of China is a series of fortifications in northern China that was constructed for strategic military defenses. This section was first built in the beginning of the Ming Dynasty in AD 1368 and then underwent major construction, reconstruction and renovation during the late Ming Dynasty, approximately in AD 1569. The Jinshanling section is 10.5 km long, a very short section compared with the entire 21,200 km wall. The wall section is located in Luanping County, Hebei province, China. This research paper focuses on the construction methods and materials of the wall and the towers in the area. The research methodology includes site visits, knowledge acquisition of experts and 3D graphic modeling. This study reveals that the materials selected for the structure include rubbles and rammed earth, bricks, stones, timber, and mortar. The erection sequence of the wall and the towers was a bottom-up fashion using various ancient construction techniques, such as the fire-setting rock blasting techniques and the surveying techniques from the Sea Island Mathematical Manual.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.92-93
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• 2018

This study analyzed the physical properties of insulation materials upon completion of building completion years and found the suitability of the current energy performance analysis methodology to apply the insulation specified in the design drawings to the same thermal conductivity values as the new materials.

• 건축역사연구
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• 제11권3호
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• pp.53-68
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• 2002

Since the 17th century, the finance for the government construction was demanded unlike the early chosun dynasty. It was consequent upon a transition in the supply method of materials and labors for the construction. The government construction being enforced in chronic financial difficulties had to undergo lack of funds. Especially, a rising construction cost by purchasing lots of materials including wood, and by employing labors weighted the difficulties. In order to put forward a construction, new and various efforts besides diversification in sources of finance ad been looked for. The efforts were driven in three parts which were to be the management of labor and materials, and the way of construction execution. As a result of spending a great effort to save cost, an extinguished improvement in the way of construction execution came out with 'Injungjeon-yeongkweon' in the year 1805.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.261-264
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• 2009

Construction projects are managed by focusing on the results of projects. Moreover, cost and schedule are managed separately even though the efficiency of integrated management is very high. This paper proposes existing and progress control research of existing quantity the integrated information uses WBS-CBS. Schedule and cost are most important in construction projects. Specially, progress and cost are relationship of the managing integrated in many construction management. The quantity of materials for the works of construction is the base to create activities and a network. The quantity of materials of materials for the elemens of a building is a base of cost estimation and resource. allocation. This study suggest method for relating the schedule and cost information through the case study of construction field engineers.