• Title/Summary/Keyword: building applications

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3D/BIM Applications to Large-scale Complex Building Projects in Japan

  • Yamazaki, Yusuke;Tabuchi, Tou;Kataoka, Makoto;Shimazaki, Dai
    • International Journal of High-Rise Buildings
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    • v.3 no.4
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    • pp.311-323
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    • 2014
  • This paper introduces recent applications of three-dimensional building/construction data modeling (3D) and building information modeling (BIM) to large-scale complex building construction projects in Japan. Recently, BIM has been utilized as a tool in construction process innovation through planning, design, engineering, procurement and construction to establish a front-loading-type design building system. Firstly, the background and introduction processes of 3D and BIM are described to clarify their purposes and scopes of applications. Secondly, 3D and BIM applications for typical large-scale complex building construction projects to improve planning and management efficiency in building construction are presented. Finally, future directions and further research issues with 3D and BIM applications are proposed.

A Study on Open BIM based Building Energy Evaluation based on Quantitative Factors

  • Kim, In-han;Jin, Jin;Choi, Jung-Sik
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.4
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    • pp.289-296
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    • 2010
  • Energy consumption by buildings accounts for a large part of the world‘s energy consumption. Methods to analyze building energy consumption before construction have been studied for decades. With BIM (Building Information Modeling) technology, architects can easily export building information to data models in order to analyze the design‘s effect on building energy efficiency. Although several BIM-based energy simulation applications are currently available, utilizing these applications for energy efficiency simulation is difficult. In this paper, by comparing existing BIM-based energy applications, the authors test the building energy efficiencies estimated by some BIM models, offer ideas and solutions to problems that appeared during the test process and propose new methods for BIM-based energy evaluation based on quantitative factors.

An analysis of Classification and Characteristics of PV Modules Applied into Building Roof (PV모듈의 지붕 적용 유형 분류 및 특성 분석)

  • Moon, Jong-Hyeok;Kim, Jin-Hee;Kim, Yong-Jae;Kim, Jun-Tae
    • 한국태양에너지학회:학술대회논문집
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    • 2009.11a
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    • pp.251-258
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    • 2009
  • Building-Integrated Photovoltaics (BIPV) is a photovoltaic (PV) technology which can be incorporated into the roofs walls of both commercial and domestic buildings to provide a source of electricity. BIPV systems can operate as a multi-functional building components, which generates electricity and serves as part of building envelope. It can be regarded as a new architectural elements, adding to the building's aesthetics. Applying PV modules on roof has an advantage over wall applications as they seem to receive more solar radiation on PV modules. There are various types of PV applications on building roofs: attached, on-top and integrated. This paper describes the classification and characteristics of PV applications on roofs.

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A Study on the Improvement of Life Safety Codes for High Fire Risk Building Applications (II) (화재 위험성을 중심으로 한 건축물 용도별 한국형인명안전기준의 개선안 도출에 관한 연구(II))

  • Koo, In-hyuk;Kim, Hye-Won;Jin, Seung-Hyeon;Lee, Byeong-Heun;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.04a
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    • pp.75-76
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    • 2022
  • In Korea, the occurrence and risk of similar fires are high, so setting up fire prevention measures through fire case investigation is considered the most basic measure in securing human safety. Therefore, the purpose of this study is to research status and related regulations of Life Safety Codes for High Fire Risk Building Applications In the future, using this as basic data, it is considered that additional research is need to development Human Safety Standards in Korea.

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A Study on the Improvement of Life Safety Codes for High Fire Risk Building Applications (화재 위험성을 중심으로 한 건축물 용도별 한국형인명안전기준의 개선안 도출에 관한 연구)

  • Koo, In-Hyuk;Kim, Hye-Won;Jin, Seung-Hyeon;Lee, Byeong-Heun;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.11a
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    • pp.88-89
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    • 2021
  • In Korea, the occurrence and risk of similar fires are high, so setting up fire prevention measures through fire case investigation is considered the most basic measure in securing human safety. Therefore, the purpose of this study is to research status and related regulations of Life Safety Codes for High Fire Risk Building Applications In the future, using this as basic data, it is considered that additional research is need to development Human Safety Standards in Korea.

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Analysis of 3D Building Construction Applications in Augmented Reality

  • Khan, Humera Mehfooz;Waseemullah, Waseemullah;Bhutto, Muhammad Aslam;Khan, Shariq Mahmood;Baig, Mirza Adnan
    • International Journal of Computer Science & Network Security
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    • v.22 no.10
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    • pp.340-346
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    • 2022
  • Construction industry is considered as one of the oldest industries in the world since human came into being and the need of their own space is realized. All this led to make the world a space of many beautiful constructive ventures. As per the requirements of today's world, every industry is recognizing the need for use and adoption of modern as well as innovative technologies due to their benefits and timely production. Now construction industry has also started adopting the use of modern and innovative technologies during their projects but still the rate of adoption is so slow. From design to completion, construction projects take a lot to manage for which technology based solutions have continuously been proposed. These include Computer Aided Design (CAD), building information modeling (BIM) and cloud computing have been proved to be much successful until now. The construction projects are high budgeted, and direly require timely and successful completion with quality, resource and other constraints. So, the researchers observe the need of more clear and technology based communication between the construction projects and its constructors and other stakeholders is required before and during the construction to take timely precautions for expected issues. This study has analyzed the use of Augmented Reality (AR) technology adopting GammaAR, and ARki applications in construction industry. It has been found that both applications are light-weighted, upgradable, provide offline availability and collaborative environment as well as fulfil most of the requirements of the construction industry except the cost. These applications also support different screen size for better visualization and deep understanding. Both applications are analyzed, based on construction's application requirements, usability of AR and ratings of applications user collected from application's platform. The purpose of this research is to provide a detail insight of construction applications which are using AR to facilitate both the future developers and consumers.

Performance of heat sinks for LED luminaires in office buildings - Focused on the variation of air flow rate in duct - (사무소건물의 LED조명기구 방열장치의 성능 분석 연구 - 덕트 내 유량변화 중심으로 -)

  • Park, Ji-Woo;Ahn, Byung-Lip;Kim, Jong-Hun;Jeong, Hak-Geun;Jang, Cheol-Yong;Song, Kyoo-dong
    • KIEAE Journal
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    • v.14 no.6
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    • pp.81-86
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    • 2014
  • In recent years, many researchers have considered the building energy consumption reduction accordingly to deal with abnormal climate changes and greenhouse gas reduction. However, the lighting energy use ratio has increased in spite of the development of the high efficiency lighting device. Therefore, the study aims to produce the LED lighting applications for the effective lighting heat removal by using the heat characteristics of LED lighting and analyzing the heat removal effect. In order to increase radiant heat efficiency, the heat pipe and heat sink was attached on PCB as LED lighting applications. Experiment was conducted to verify the temperature and air velocity of inside duct: thermocouples, anemometer. The heat removal effect of LED lighting applications was measured by observing the temperature of the lighting applications and the change of air velocity in duct. The experiment shows that the temperature change in the duct according to air velocity was $0.9{\sim}5.8^{\circ}C$. It is also concluded that heat removal was calculated from 33 to 81W.

Graph Processing on the Web Environment (웹 환경에서의 그래프 처리)

  • 박성헌;박지헌
    • The Journal of Society for e-Business Studies
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    • v.5 no.2
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    • pp.113-125
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    • 2000
  • There are many web-based applications which need graphs and charts to be generated from data stored in the database. This paper does a comparative study on graph processing techniques for web-based applications through a case study of building a stock information system. The result of this paper can be used for building effective web applications with graphs in areas of EC(electronic commerce), EIS(executive information system), and DM(data mining).

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Development and Wind Speed Evaluation of Ultra High Resolution KMAPP Using Urban Building Information Data (도시건물정보를 반영한 초고해상도 규모상세화 수치자료 산출체계(KMAPP) 구축 및 풍속 평가)

  • Kim, Do-Hyoung;Lee, Seung-Wook;Jeong, Hyeong-Se;Park, Sung-Hwa;Kim, Yeon-Hee
    • Atmosphere
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    • v.32 no.3
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    • pp.179-189
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    • 2022
  • The purpose of this study is to build and evaluate a high-resolution (50 m) KMAPP (Korea Meteorological Administration Post Processing) reflecting building data. KMAPP uses LDAPS (Local Data Assimilation and Prediction System) data to detail ground wind speed through surface roughness and elevation corrections. During the detailing process, we improved the vegetation roughness data to reflect the impact of city buildings. AWS (Automatic Weather Station) data from a total of 48 locations in the metropolitan area including Seoul in 2019 were used as the observation data used for verification. Sensitivity analysis was conducted by dividing the experiment according to the method of improving the vegetation roughness length. KMAPP has been shown to improve the tendency of LDAPS to over simulate surface wind speeds. Compared to LDAPS, Root Mean Square Error (RMSE) is improved by approximately 23% and Mean Bias Error (MBE) by about 47%. However, there is an error in the roughness length around the Han River or the coastline. Accordingly, the surface roughness length was improved in KMAPP and the building information was reflected. In the sensitivity experiment of improved KMAPP, RMSE was further improved to 6% and MBE to 3%. This study shows that high-resolution KMAPP reflecting building information can improve wind speed accuracy in urban areas.

AUTOMATIC 3D BUILDING INFORMATION EXTRACTION FROM A SINGLE QUICKBIRD IMAGE AND DIGITAL MAPS

  • Kim, Hye-Jin;Byun, Young-Gi;Choi, Jae-Wan;Han, You-Kyung;Kim, Yong-Il
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.238-242
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    • 2007
  • Today's commercial high resolution satellite imagery such as that provided by IKONOS and QuickBird, offers the potential to extract useful spatial information for geographical database construction and GIS applications. Digital maps supply the most generally used GIS data probiding topography, road, and building information. Currently, the building information provided by digital maps is incompletely constructed for GIS applications due to planar position error and warped shape. We focus on extracting of the accurate building information including position, shape, and height to update the building information of the digital maps and GIS database. In this paper, we propose a new method of 3D building information extraction with a single high resolution satellite image and digital map. Co-registration between the QuickBird image and the 1:1,000 digital maps was carried out automatically using the RPC adjustment model and the building layer of the digital map was projected onto the image. The building roof boundaries were detected using the building layer from the digital map based on the satellite azimuth. The building shape could be modified using a snake algorithm. Then we measured the building height and traced the building bottom automatically using triangular vector structure (TVS) hypothesis. In order to evaluate the proposed method, we estimated accuracy of the extracted building information using LiDAR DSM.

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