• 월간 기계설비
• /
• s.230
• /
• pp.49-64
• /
• 2009

과거 건설업이 태동되던 시절 구들난방과 수도꼭지가 전부였던 기계설비는 최근들어 건축물의 첨단화, 다양화에 따라 전체 공사비에서 일반건축물은 20% 이내, 병원 및 첨단 인텔리전트빌딩은 30%, LCD, 반도체 크린룸은 50% 이상을 차지하고 있다. 이러한 기계설비의 발전에 견인차 역할을 담당한 대한설비건설협회는 올해로 창립 20 주년을 맞이했다. 본지는 기계설비의 태동과 성장, 그리고 대한설비건설협회의 활동을 통해 기계설비의 발전사를 조명해 보고자 한다.

• Fire Science and Engineering
• /
• v.27 no.4
• /
• pp.7-12
• /
• 2013

Recently, the risk of fire outbreak is going up because of newly developed combustible materials are intended to apply more. Especially the steel framed structure can lose its load-bearing capacity when it is exposed to higher temperature condition such as a fire. So the pre-evaluation of fire resistance of the structure is very essential that the mechanical properties of yield strength and elastic modulus and thermal properties such as conductivity and linear expansion be required. To get the databases for SM 400 or welding structural steels at high temperature, various temperature conditions were used for deriving the yield strength, elastic modulus, linear expansion, and conductivity and the results were compared to those of SS 400, ordinary structural steel, respectively.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2019.11a
• /
• pp.224-225
• /
• 2019

The purpose of this study was to develop a technology to prevent leakage of construction structures for the Chinese market. The first key development factor is to establish a joint quality standard that corresponds to all performance criteria set out in Chinese Standard JC / T 2428-2017. The second key development factor is to develop a product capable of exhibiting performance in a low temperature environment of $-30^{\circ}C$ and coping with 15mm structure behavior.

• Analytical Science and Technology
• /
• v.24 no.3
• /
• pp.168-172
• /
• 2011

The iron frame of building could be collapsed or bent at $500^{\circ}C$. Therefore the fire-resistant paint should be applied for safety. This study performed the comparative analysis to show the characteristics of fireresistant paint. And then 12 products of fire resistant paint and 6 products of paints were used as samples. And the samples were analyzed by TGA (Thermogravimetric Analyzer) as analyzer for measuring the variation of weight on temper of weight by heating. When TGA analyzer could measure the variatiature, and FT-IR was measured for analyze gas components on variation on of weight by heating on 12 products of fire resistance, the samples showed to decrease 40% of weight to $800^{\circ}C$, and because paints had 50% to 40% of loss weight, it showed to be equal with loss weight of fire resistance paint on high temperature or was lower loss weight than it of fire resistance paints. However number 6 sample of fire resistance paints could show to decrease 20% of total weight on $800^{\circ}C$. And then in the case of FT-IR, fire resistance paints could show to have the high intensity of $CO_2$ spectrum as complete combustion. However paints could show to have the lower intensity of $CO_2$ spectrum, have the higher intensity of water spectrum. Therefore the TGA graph of result could be much different until $250^{\circ}C$. When it was burned, FT-IR spectrum could show to confirm the characteristics of fire resistance paints, and the characteristic could be confirmed on inorganic paint of fire resistance by weight loss of TGA.

• Korean Journal of Construction Engineering and Management
• /
• v.16 no.2
• /
• pp.97-105
• /
• 2015

Building information modeling (BIM)-based construction projects have increased and become more varied, and as such the management of BIM-based facility information is also increasingly important for facility maintenance. Information management, and specifically product data mapping, however, has some problems in the area of manual data entry and does not adequately consider the exchange requirements of facility maintenance. Therefore, it is necessary to introduce a method to improve the management of composite object information for BIM-based facility maintenance so that it can handle construction operation building information exchange (COBie) data for a composite object. Therefore, we present a method to map COBie data to related materials of a composite object. This research contributes to increasing the efficiency and accuracy of the required information mapping between a building model and product data using a BIM library through optimal BIM data adoption. Moreover, it allows for the creation and management of specific product data at the design development phase.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2014.10a
• /
• pp.201-202
• /
• 2014

플로팅 건축은 일반 육상 건축과는 달리 건축의 개념을 해양으로 확장시킨 것으로 육상 건축이 가지는 한계를 극복하는 하나의 출발점으로 시작하였다. 하지만 우리나라 플로팅 건축의 역사는 매우 짧으며 축적된 기술도 거의 전무한 실정이다. 아직 초보단계에 그치고 있는 플로팅 건축은 활용측면에서도 단순 기능의 부유식 선착장이나 낚시용 시설 등으로 사용되고 있을 뿐이며 ${\cdots}$(중략)${\cdots}$.

• Fire Science and Engineering
• /
• v.32 no.6
• /
• pp.63-68
• /
• 2018

In this study, to recognize the limitations and problems of fire safety in existing deteriorated buildings in Korea, and to analyze the fire case of Jongno Gooshiwon, the fire life safety assessment was performed and analyzed through fire egress simulation and analyzed the domestic and foreign related codes and regulations. In order to secure the fire safety of existing deteriorated buildings, it is necessary to adopt the systematic introduction and application of fire safety performance evaluation of buildings based on quantitative and objective indicated method for performance maintenance and management for fire life safety.

• Bulletin of the Society of Naval Architects of Korea
• /
• v.32 no.4
• /
• pp.57-63
• /
• 1995

극지개발을 위해서는 극지의 혹독한 자연환경을 대상으로 하는 과학지식과 극지에서 사용되는 특수시설과 장비를 설계, 시공 그리고 운용하는 공학기술이 요구된다. 극지관련 공학기술은 저 온용재료 관련기술, 도로나 교량, 건축물과 같은 극한지 천연자원의 시추와 생산, 수송을 위한 해양구조물과 파이프라인 관련기술, 그리고 얼음의 재료특성에 관한 이론 및 실험으로 크게 구 분할 수 있다. (Table 1). 극지용 구조물과 빙해항행선박 (쇄빙선) 은 일반 해역에서 운용되는 구조물에 비해 형상, 구조강도, 의장, 저온특수설비 등에서 새로운 개념의 기술이 요구되기 때 문에 금후 국내 조선해양산업계가 지향해야 할 고도의 기술집약형 건조물이다. 또한 최근 들어 국내에서도 시베리아 천연자원의 해상운송을 위해 빙해역을 운항할 수 있는 유조선이나 일반 화물선을 확보해야할 필요성이 대두되고 있으며, 또한 국내 조선업계의 생산기술이 비약적으로 발전함에 따라 외국으로부터의 빙해항행선박의 수주도 이루어지고 있으나 아직 이들 선박의 설계를 위한 독자적인 기술은 미흡한 현실이다. 극지개발은 이론적 접근과 함께 실험에 의한 신뢰성 있는 자료를 축적해야 한다. 이를 위해서는 빙해수조(,ice model basin)의 건조나 빙역학 실험을 위한 냉동실험실 (cold room)의 건립을 위한 초기투자가 절실히 요구되며 산업계의 수 요에 따른 포괄적인 산학협동연구가 진행되어야 할 필요가 있다. 빙해수조와 냉동실험실은 빙 해역에 직접 접하지 않은 국가에서 극지공학 연구에 참여하기 위한 필수적인 시설인데 table 2에 대표적인 빙해수조의 설치장소와 규모에 대하여 정리하였다. 이 글은 우리 나라가 쉽게 접할 수 없는 극지환경을 이해하고 가까운 장래에 예상되는 수주경쟁에 대비하여, 국내외의 극지개발 동향을 분석하고 이에 대한 국내의 극지관련 연구의 현황과 앞으로의 전망을 살펴보기 위하여 준비된 것이다. 이 글에서는 극지공학 일반보다는 조선해양분야에 관련된 내용만으로 국한한다.

• Proceedings of the Korean Institute of Industrial Safety Conference
• /
• 2002.11a
• /
• pp.19-27
• /
• 2002

최근 경제구조가 고도화되고 생활수준이 향상됨에 따라 사회간접자본시설 및 각종 용도의 건축물에 대한 요구가 높으며, 특히 고층건물 건축시에 사용되는 리프트카의 수요 또한 증가되고 있다. 일반적으로 기계구조물은 사용기간동안 절대적 안전성을 확보하기 위하여 설계되고 있으나 실제 건설 현장에서 사용중인 피니언축에 균열이 발견되고 있으며 이로 인하여 피니언축 수리보수 기간동안의 공사중지로 공기지연 뿐만 아니라 리프트카 추락으로 인한 인명사고가 발생하는 등 그 위험성이 매우 높다. 이에 따라 각종 구조물, 설비 및 기기의 안전진단을 통한 유지보수가 중요시되고, 결함 검출의 정량화에 대한 연구, 기술 개발이 강력히 요구되고 있다.(중략)

• Tunnel and Underground Space
• /
• v.21 no.6
• /
• pp.471-479
• /
• 2011

The velocity horizontal response spectra using the observed ground motions from the recent 5 macro earthquakes, equal to or larger than 4.8 in magnitude, around Korean Peninsula were analysed and then were compared to the acceleration horizontal response spectra, seismic design response spectra (Reg Guide 1.60), applied to the domestic nuclear power plants, and finally the Korean Standard Design Response Spectrum for general structures and buildings. 102 velocity horizontal ground motions, including NS and EW components, were used for velocity horizontal response spectra and then normalized with respect to the peak velocity value of each ground motion. First, the results showed that velocity horizontal response spectra have larger values at the range of medium natural period, but acceleration horizontal response spectra have larger values at the range of short natural periods. Secondly, the results also showed that velocity horizontal response spectra exceed Reg. Guide 1.60 for longer natural periods bands less than 6-7 Hz. Finally, the results were also compared to the Korean Standard Response Spectrum for the 3 different soil types(SC, SD, and SE soil type) and showed that velocity horizontal response spectra revealed much higher values for the frequency bands below 1.5(SC), 2.0(SD), and 3.0(SE) seconds, respectively, than the Korean Standard Response Spectrum. The results suggest that the fact that acceleration, velocity, and displacement horizontal response spectra have larger values at the range of short, medium, and long natural periods, respectively, can be applied consistently to those form domestic ground motion, especially, the velocity ground motion. Information on response spectrum at such medium range periods can be very important since the domestic design of buildings and structures emphasizes recently medium and long natural periods than short one due to increased super high-rise buildings.