• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.146-148
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• 2013

Recently Construction industry is try to minimize effects on the Environment. So, Korea government is provided the Environmental law, but environmental managers who works in construction phase are not easy to understand the Environmental law because the laws are scattered in the several legislations and hardly to find the clauses for the environmental law. Therefore this study intends to deduct the improvement directions of Environmental laws. The basis data is selected through survey targeting environmental managers and analyzed by AHP.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.144-145
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• 2013

With the increasing public concerns on sustainability in construction industry around the world, a variety of standards for sustainable construction have been developed and implemented. However, most of the them focuses operation and maintenance phases and do not have been approached integrally in terms of all construction phases. Especially, considering the quantities of environmental loads occurred intensively at the construction phases, it should not be overlooked. Therefore, the purpose of this study is to deduct primary management works for reduction of the potential environmental loads at the construction phases. In order to assess them quantitatively, we conduct a survey from professionals who are in the relevant fields and analyze these data using Fuzzy-AHP.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.139-141
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• 2013

Construction industry has been participated in the effort for the reduction of environmental pollution such as introduction of green building certification, enactment of environment related regulation. However these efforts are focused on the design and maintenance phases of entire life cycle, construction phase that can occur intensive environmental impact in a short period is insufficient. Therefore this study aim to derive environmental management factors in construction phase and assess them using reliability analysis and factor analysis. As a results, the 20 factors was classified into 4 superordinate such as 'plan and supervision', 'environmental factor management', 'licensing management', 'surrounding environment management'.Based on result of this study, further study should be developed the checklist for effective environmental management in construction phase.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.142-143
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• 2013

Green building certifications and environmental assessments are extensively implemented and studied to decrease the environmental impact during the life cycle of buildings. However, most of them are not appropriate to assess the environmental performance during the construction phase due to the difference of environmental factors. To develop an environmental index of construction projects, normalization should be conducted to compare the relative impact of each factor. As a first step, this study deduced normalization references of 4 environmental factors : noise, waste, greenhouse gas, and dust.

• Electric Engineers Magazine
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• s.281
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• pp.15-20
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• 2006

인텔리전트 빙딜은 건물의 특성상 거주자의 안전과 편의를 최우선적으로 고려해야 하는 첨단 복합빌딩이다. 미 목적을 구체화하기 위한 인텔리전트 빌딩은 빌딩자동화 시스템, 정보통신시스템, 사무자동화 시스템, 시스템 통합3부분으로 나누어서 고찰 할 수 있겠다.이 3가지 시스템의 어느 한 부분이라도 기능을 제대로 발휘하지 못하면 인텔리전트 빌딩으로서 기능을 유지하지 못하므로 이 3가지 부분이 완벽하게 설계, 시공되어 체계적으로 유지관리 될 때 인텔리전트 빌딩으로서의 기능을 발휘하게 된다. 시스템일부의 지장은 시스템 전체에 영향을 미치기 때문에 무엇보다도 시공 품질에 대해서는 일반 빌딩에 비하여 높은 수준을 필요로 함과 동시에 시공의 신뢰도 향상도 요구된다. 특히 시스템의 개획, 즉 설계단계에서 시스템 품질이 대부분 결정되므로 설계단계에서의 충분한 검토가 필요하다. 이장에서는 인텔리전트 빌딩 시스템 (Intelligent building System)의 개념을 알아보고, IBS 건물에 있어 중요한 전원설비의 최적화 방안에 대해 자동제어 설계 및 시공의 입장에서 고찰해 보려한다.

• Journal of the Korea Institute of Building Construction
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• v.3 no.2
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• pp.111-118
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• 2003

Steel frame construction is divided into subsidiary materials with column, beam, girder and bracing. After these are processed in factory for using installing in construction field. These prefabricated furniture is very important in accordance with design drawing about processing and prefabricating. In the case of design process using information transmission in blueprint, omission of material number, processing measure and finishing material, or discordance of each structure drawing and selecting incongruent structural material generated an error in the process of design. These error caused delaying time and increasing cost and increasing safety accident in the steel-structure work operating process. therefore, design process should consider problem of operating process.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.407-408
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• 2023

This article proposes a method to assess construction safety risk during the construction phase based on accident loss costs. Risk assessments for hazardous construction work are required by law, but they lack quantitative criteria. To address this, a survey estimated loss costs due to fatalities in the construction industry, finding labor loss cost and delay reimbursement cost to be the largest factors. The proposed method uses algorithm to calculate expected accidents and risk levels based on project characteristics, work methods, personnel, and environment data. This method is expected to enhance the reliability and usability of risk assessments during the construction phase of construction projects.

• Land and Housing Review
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• v.14 no.1
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• pp.123-134
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• 2023

The BIM (Building Information Modeling) model created in the design stage can be used for prior review and schedule management for the construction stage. However, in the case of actual BIM application cases, additional work is required, such as creating a new model suitable for the construction stage, rather than using the 3D model in the design stage, due to the difference in the purpose of use between the design stage and the construction stage. Therefore, in this study, a division function of BIM model is proposed as a method of recycling it in the construction stage without a remodeling process. In addition, the application to the actual BIM model and the 4D CAD system linkage of the divided object and the comparison with the existing division method are used to verify the usability.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.26 no.2
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• pp.147-155
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• 2013

In this paper structural analysis of underground electrical power cable structures which is excavated below the surface of the earth in the downtown area is carried out considering the effect of construction sequence. There are many various life-line facilities below the surface of the earth in the downtown area. MPDAP was used for finite element analysis of underground electrical power cable structures. Three typical sections are simulated by finite element models. Unbalanced equilibrium problems may be occurred when conventional finite element procedures were used for simulation of tunnel excavation. Therefore equilibrium perturbation concept was applied to solve these problems. The effects of time-dependent deformations in advancing tunnel excavation are considered in the stages of construction sequences as using the load distribution factor. It is shown that values of maximum displacement of both soil and rock surrounding underground electrical power cable structures obtained by our numerical studies are less than allowable values.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.30 no.6
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• pp.559-566
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• 2017

This paper proposes a new composite deckplate system reinforced with inverted triangular truss girders(called 'D Deck'), which does not require the use of temporary supports at construction stage. The proposed system retains increased stiffness and strength while keeping the absolute floor height change to a minimum level and can be utilized as floor systems of various types beam members such as the conventional wide-flange and U-shaped composite beams. In order to evaluate the performance of the proposed system, five specimens with a span of 5.5 m were fabricated and tested under field loading conditions consisting of several intermediate steps. The load-deflection curves of each specimen were plotted and compared with the nonlinear three-dimensional finite element analysis results. The comparison showed that the effective load sharing between the truss girders and floor deck occurs and the maximum deflection under construction stage loading is well below the limit estimated by the provisions in Korea Building Code.