• Earthquakes and Structures
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• 제4권6호
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• pp.587-606
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• 2013

The given paper presents a new approach in design of seismic isolation systems of base isolated buildings. The idea is to install not one big size rubber bearing under the columns and/or shear walls, or one by one with certain spacing under the load-bearing walls, but to install a group/cluster of small size bearings, in order to increase the overall effectiveness of the isolation system. The advantages of this approach are listed and illustrated by the examples. Also the results of analyses of some buildings where the approach on installation of clusters of rubber bearings was used in their isolation systems are given for two cases: i) when the analyses are carried out based on the provisions of the Armenian Seismic Code, and ii) when the time history analyses are carried out. Obtained results are compared and discussed. Paper also presents, as an example, detailed analysis and design of the 18-story unique building in one of the residential complexes in Yerevan. Earthquake response analyses of this building were carried out in two versions, i.e. when the building is base isolated and when it is fixed base. Several time histories were used in the analyses. Comparison of the obtained results indicates the high effectiveness of the proposed structural concepts of isolation systems and the need for further improvement of the Seismic Code provisions regarding the values of the reduction factors. A separate section in the paper dedicated to the design of high damping laminated rubber-steel bearings and to results of their tests.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.247-248
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• 2021

Recently, the government is pursuing to reduce the serious accidents in most industries, including the construction industry, by enacting laws on punishment. The accident rate tends to be depended on the size and type of construction sites, and the accidents occur frequently due to inadequate implementation of safety management system and management standards, especially, in small and medium-sized sites. This study has performed the profiling of 265,000 accident cases on construction sites by attribute analysis such as the ratio of days lost to work, and pattern of days lost to work compared to the size of the construction. It turned out that the proportion of accident cases was high mainly in small-scale construction sites, and long-term labor losses occurred. Shortly, it is necessary to establish an institutional standard for applying a realistic safety management cost calculation and management system centered on small-scale sites. Therefore, this study is expected to be used as fundamental data or guideline for developing a customized safety management and accident prevention system for a worker reflecting the conditions of a construction site in the future.

• 한국전자통신학회논문지
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• 제12권6호
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• pp.1071-1080
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• 2017

최근 4차 산업혁명과 스마트 팩토리라는 용어를 뉴스나 매체를 통해 자주 들을 수 있다. 하지만 스마트 팩토리에 대한 정보와 어떻게 스마트 팩토리를 구축해야 하는지에 대한 구체적인 가이드라인이 없기 때문에 기업들로부터 외면 받고 있다. 스마트 팩토리의 구축은 도입 목적을 고려하여 회사의 규모에 적합하게 수행되어야한다. 기존 논문 연구에서 국내 대 중 소기업들을 대상으로 스마트 팩토리 성공구축 사례들을 분석 하였다. 사례분석 결과, 대기업의 경우 일부공장을 대상으로 시범적으로 스마트 팩토리를 구축한 후 성공적으로 평가될 시 전체공장으로 확대시키는 전략이 효과적이다. 중소기업의 경우, 낮은 수준의 스마트 팩토리 구축레벨에서 높은 수준의 구축레벨로 업그레이드하는 것이 효과적이다. 본 논문에서는 전통제조업체를 1개 선정하고, 3D가상공정설계를 통해 병목 구간과 개선이 필요한 공정을 파악한 후 센서를 설치한다. 최종적으로 센서를 통해 수집 된 데이터를 분석한 후 공정을 개선하고, 생산성이 향상된 스마트 팩토리를 구축하여 그 효과를 검증해 보고자 한다.

• 건축역사연구
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• 제22권1호
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• pp.7-14
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• 2013

Because of the demographic and economic changes and the lifestyle diversification, the new housing types such as the Quasi-housing and urban small-size multi-unit housing are appeared in korea. The current housing use classifications are regulated in accordance with the housing divided ownership, horizontal and vertical size of housing, and the number of units. However, there is a limit to accommodate the new housing type. Therefore, this study proposed the direction of improvement of the housing use classifications through comparative analysis of foreign housing use classifications. Also, building regulations are applied according to the building use classifications. Therefore, the new housing types in building act are very urgent and important. So this study is derived the problems of the current housing use classifications and is proposed the improvement direction of it through the expert opinion survey.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2003년도 정기총회 및 추계학술대회
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• pp.181-187
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• 2003

This study intends to make a counterproposal for re-building existing high-rise/high-dense buildings and for planlessly re-constructing multi-dwellings. Also, it proposes the plan instruction fur reconstruction by small collective housings through annexing parcels in the residence Inner area. This study can be summarized as below: (1) Remained site generated by site boundaries can be utilized by annexing two or more parcels. (2) Vacant lots between buildings can be utilized as building space or common space by small-sized annexation. (3) Bad effect of residential environment caused by simultaneous development of total blocks can be minimized. (4) Formation of site size and plane, which are advantageous to reconstruction, is available. (5) Accessibility to neighboring roads can increase. (6) Residents' participation in development can increase in economical and planning aspect. In order to utilize these planning instruction, residents' participation and improved public ownership system for parcel annexation are required.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.216-224
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• 2013

There are the relevant provisions that apply to building regulations about the Building codes, Fire Protection laws, and more Multi-using interior finish materials businesses etc. The differences between these regulations are as follows: The Building codes is defined the main use of the building according to facilities to used to set the scale by the use of the floor space, On the other hand, Fire Protection laws are the basic purpose and the act of using the architectural space(or sales) by separating object by fire. And Multiple-using Businesses Facilities consist of two regulations engaged in the kind of law and the size of the floor area. One building can not be based on operating facilities and together in Multiple use businesses Law. As such, the Buildings are applied to the Building codes, Fire Protection laws, such as Multi-using Businesses Facilities interior construction industry due to the structural differences in the position of the designer feeling a lot of difficulties and confusion. The Multi-use businesses Facilities engage in the kind of law, the size of the floor area and seating capacity. These can not be based on operating facilities, and consists of two regulations together in one building. This study is purposed to help improving the finish of the interior architecture that is related to the Building code regulations, Fire Protection laws, Multi-using Facilities interior finishing material relevant with the provisions from the law through analyze the case of developed countries, and the current Multiple use Businesses Facilities research range from the law of multiple-using facilities, interior finishing, interior architecture for supervision reasonably and compensation for the interior design. So, Result is as follows: First, interior decorations can be separated the fixed material and the moveable things. second, It should be included multi-using Business though small size business space at the basement floor. third, It should be established statute law that design and construction responsibility. forth, re-testing fire resist performance after some period. and finally, it need to mitigate regulation where be installed sprinkler.

• 한국강구조학회 논문집
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• 제29권2호
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• pp.169-180
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• 2017

본 연구에서는 국내 소규모 철골조 건축물에서 실제 시공된 보-기둥 약축 접합부에 대한 현황조사를 바탕으로 시공성을 향상시킨 약축접합부 상세를 제안하였으며, 제안된 약축접합부에 대한 반복가력 실험을 통해 접합부 내진성능을 평가하였다. 실험변수는 보-기둥 접합부에 사용된 볼트의 개수이다. 실험결과, 본 연구에서 제안하고 있는 보-기둥 약축 접합부의 거동은 수평 스티프너에 연결되는 고력볼트의 개수의 의해 결정되는 것으로 나타났다. 접합부에 4개 이상의 볼트접합이 사용될 경우 현행 기준에서 요구하는 부분 강접합 요구조건을 만족시키는 것으로 나타났다. 모든 실험체는 플랜지 연결플레이트의 연단쪽 보 플랜지 볼트 구멍 주위에서 국부적인 지압파괴와 파단 등이 발생하였다. 하지만, 웨브 높이와 플랜지 폭이 작은 기둥을 사용할 경우, 접합부에 사용되는 고력볼트의 개수가 제한적으로 사용되어야 할 것으로 판단되므로 향후 이 부분에 대한 추가적인 연구가 필요하다.

• 한국건축시공학회지
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• 제16권2호
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• pp.169-175
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• 2016

건축공학을 전공한 학생들이 보유해야할 CAD 활용능력을 조사하기 위해 제주지역 중소규모 건설회사를 대상으로 설문을 실시하였다. 소규모 건설회사는 CAD 소프트웨어를 사용하여 기존 도면을 수정하고 있다. 또한 지방의 국립대학의 CAD 수업현황을 분석하였다. 기존의 CAD 수업은 4시간 또는 6시간으로 진행하고 있으며 AutoCAD를 주로 사용하고 있다. CAD 수업은 6시간 실습이 필요하다고 판단되며 2D 도면 작성이 주요 실습내용이 되어야 하고 3D 모델 작성도 수업에 편성되어야 한다. 수업의 결과를 평가할 수 있는 방법의 개선도 필요하며, 인터넷을 활용하거나 스마트폰을 이용한 실시간 피드백을 대안이 될 수 있다.

• KIEAE Journal
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• 제14권3호
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• pp.5-13
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• 2014

This paper introduces emergy(spelled with "m") that is a new environmental indicator in architecture, aiming to clarify conflicting claims of building design components in the process of energy-retrofit. Much of design practitioners' attention on low energy use in operational phases, may simply shift the lowered environmental impact within the building boundary to large consumption of energy in another area. Specifically, building energy reduction strategies without a holistic view starting from natural formation, may lead to the depletion of non-renewable geobiological sources (e.g. minerals, fossil fuels, etc.), which leaves a building with an isolated energy-efficient object. Therefore, to overcome the narrow outlook, this research discusses the total ecological impact of a building which embraces all process energy as well as environmental cost represented by emergy. A case study has been conducted to explore emergy-driven design work. In comparison with operational energy-driven scenarios, the results elucidate how energy and emergy-oriented decision-making bring about different design results, and quantify building components' emergy contribution in the end. An average-size ($101.9m^2$) single family house located in South Korea was sampled as a benchmark case, and the analysis of energy and material use was conducted for establishment of the baseline. Adoption of the small building is effective for the goal of study since this research intends to measure environmental impact according to variation of passive design elements (windows size, building orientation, wall materials) with new metric (emergy) regardless of mechanical systems. Performance simulations of operational energy were developed and analyzed separately from the calculation of emergy magnitudes in building construction, and then the total emergy demand of each proposed design was evaluated. Emergy synthesis results verify that the least operational energy scenario requires greater investment in indirect energy in construction, which clearly reveals that efficiency gains are likely to be overwhelmed by increment of material flows. This result places importance on consideration of indirect energy use underscoring necessity of emergy evaluation towards the environment-friendly building in broader sense.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.159-160
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• 2021

Every year on a construction site safety scale of the crash of an accident, but the large and small, accounting for more than half. In Construction Field wearing safety belts for their safety, but the impact of fracture, including the risk of injury occurs. Accordingly, the death as well as by the crash, injuries that can reduce the size of the invention was driven by safety belts.