BIM 형상정보를 이용한 증강현실기반 가시화 사례

허경진,이석준,정순기 대한공간정보학회 2012 Spatial Information Research Vol.20 No.2

In the current construction planning and designing process, an architectural miniature model was designed to verify the interior or exterior spatial sense of a building structure, but building of the miniature model is demand much more effort and time; in addition to this it has limitation to identify interior information of the building. For a complement of it, CAD would be used in the existing planning and designing process to visualize the building information, but its visualization is not satisfactory for the 3D volume which could be easily verified with the miniature model. CAD is the specific software for designing building structures and the 3D results are usually rendered on 2D monitor screen. Therefore, there is a shortage of cognitive immersion for the 3D space. In this paper, we introduce the conversion process of BIM shape data into the Augmented Reality contents by using a series of softwares. As a result of modification on construction plan or design we reduced the cost and time to reconstruct the final visualization. We have shown that the interior or exterior information of the building structures are easily visualized with BIM shape data on augmented reality environment. Several proposed interaction methods, such as removal of building components, and slice-cut operation, provide the user for the effective manipulation of models on the augmented reality environment. 기존의 건축계획 및 설계과정에서는 건축물 내·외부의 공간감을 확인하기 위해 건물모형을 제작하였으나 건물모형은 비교적 많은 제작 시간과 노력이 들며 건물의 내부 정보를 파악하기에 어려움이 따른다. 이를 보완하기 위해 기존 설계, 계획 과정과 그에 대한 가시화 방법으로써 CAD툴을 사용하여 건물 모형으로는 파악하기 어려운 건물 내부 정보를 가시화 할 수 있었지만, 건물모형에서 확인할 수 있는 부피감을 확인하기에는 부족함이 존재한다. 기본적으로 CAD는 설계에 목적을 두고 만들어진 프로그램이며 일반적인 가시화 환경인 2차원 모니터 화면상에서 3차원 건물을 보여주게 되므로 공간에 대한 인지적 몰입감을 만족시키기에는 부족하다. 본 논문에서는 BIM 형상정보 데이터를 일련의 소프트웨어로 가공하여 증강현실 컨텐츠로 변환하는 과정을 소개한다. 이는 건축계획 및 설계과정에서 형상정보가 수정될 경우 최종 가시화까지 소요되는 비용과 시간을 단축시킬 수 있다. 또한 BIM 형상정보를 증강현실 기법을 이용하여 3차원 인지공간에서 가시화함으로써 3차원 건물의 내·외부 공간정보를 분석하기가 용이하다. 또한 건물의 내·외부 정보를 증강현실 환경에서 효과적으로 조작할 수 있도록 건축 요소의 제거, 슬라이스컷 등 다양한 인터랙션을 제안한다.

BIM을 이용한 ASHRAE PRM 에너지 모델링 프로세스에 관한 연구- BIM 모델링 검증단계를 중심으로 -

류한수,고정림,조병성,박경순 대한건축학회지회연합회 2014 대한건축학회연합논문집 Vol.16 No.6

기후 변화와 에너지 위기로 인하여 건축물의 에너지 소비를 줄이기 위한 많은 연구와 노력들이 이루어지고 있다. 건축물 설계단계에서 비용대비 효율적 외피 선정과 최적의 냉난방공조시스템의 선정은 건축물에서 소비되는 에너지 절감을 위한 필수적인 과정이다. 최적의 설계안 도출을 위한 대안 평가 과정이 필요하며, 에너지 모델링이 이러한 역할을 한다. 하지만 기존의 에너지 모델링은 건물 형상 치수 입력을 위해 많은 시간이 소모되어 설계 단계에서 대안 평가를 위한 도구로 적극적으로 활용되지 못했다. 본 논문은 보다 빠르게 신뢰할 만한 에너지 분석 결과를 도출하기 위해 BIM을 활용한 에너지 모델링 프로세스를 제안한다. BIM을 이용해서 건축 형상에 대한 정보와 조닝 정보를 생성하고, 생성한 정보를 에너지 시뮬레이션 툴로 내보내는데 그 중간 과정으로 형상 정보에 대한 오류검토가 필요하다. 오류검토의 과정은 ‘간섭체크, gbXML Viewer, FZKViewer’의 3가지 단계를 거친다. 오류 검토 과정을 통해 발견한 오류들을 BIM 툴에서 다시 수정하는 과정을 거쳐 오류가 없는 gbXML파일을 추출한다. 추출한 BIM 정보를 기반으로 ‘ASHRAE Standard 90.1’에서 제시하는 ‘PRM(Performance Rating Method)’에 따라 실제 프로젝트에서 에너지 모델링을 수행하는 것이다. 제안된 프로세스를 통해 결과를 건물 형상 모델링에 소요되는 시간과 입력 과정에서 발생할 수 있는 오류를 줄이고, 신뢰할 수 있는 에너지 소비 결과를 얻을 수 있다. With climate change and energy crisis, many researches and efforts have been made to reduce energy consumption in buildings. Selection of effective envelopes compared to cost in the designing stage of architectures and selection of optimal air-conditioning system are an essential process to reduce energy that's consumed in buildings. It requires an alternative assessment process to draw optimal design plans and energy modeling plays this role. However, the existing energy models have not been utilized actively as an alterative assessment tool in the stage of designing as it consumes a lot of time to input building shape dimensions. This study proposes an energy modelling process utilizing BIM to draw reliable energy analysis results more rapidly. Using BIM, it generates information on architectural shapes and zoning information and sends generated information to energy simulation tool. In the intermediate process, it requires a review of errors on shape information. The process of reviewing errors goes through three stages such as interference check, gbXML Viewer, and FZKViewer. The errors discovered through the process of reviewing errors are modified again in BIM tool and then errorless gbXML files are extracted. Energy modeling is performed in an actual project according to the PRM (Performance Rating Method) presented in ASHRAE Standard 90.1 based on the extracted BIM information. Through the proposed process, the time that is consumed to apply results to building shape modelling and the errors that may occur in the input process can be reduced and then reliable energy consumption results can be obtained.

BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS

ChungSuk Cho,Don Chen,Sungkwon Woo 한국BIM학회 2012 KIBIM Magazine Vol.2 No.1

With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.

BIM 기반 인허가 요구정보 생성 방안

김가람(Karam Kim),유정호(Jungho Yu),김인한(Inhan Kim) (사)한국CDE학회 2015 한국CDE학회 논문집 Vol.20 No.1

Using BIM (Building Information Modeling)-based design information to analyze various engineering processes has been widely adopted in construction projects. However, since typical building permit processes often require traditional 2D-based design information for submission and to obtain building approval, there are some challenges in delivering such data thru BIMbased design information. This paper proposed a methodology to generate and meet information requirements for permit applications and approvals based on BIM-based design information. To that end, we analyzed the required information necessary to make submissions for building approvals using the Seumter system. We then suggested a process to collect the required information from BIM-based data, and classified this into two types: BIM-internal and BIM-external information requirements. In addition, we proposed three algorithms to extract and to match between extracted BIM data and BIM-internal information requirements using IFC(Industry Foundation Classes). The proposed methodology enables to ensure the efficiency and the accuracy when providing data for building permit review and approval.

Building Integrated Vegetation Systems into the New Sainsbury's Building Based on BIM

DongKyu Lee 한국BIM학회 2014 KIBIM Magazine Vol.4 No.2

Today, there is a growing need of environment-friendly buildings, so-called ‘green’, facilities, and energy saving buildings to decrease environmental pollutants released into cities by construction activities. Green-Building Information Modeling (Green-BIM) is a purpose-built solution which supports to forecast energy consumption of 3-D model of a building by augmenting its primary 3-D measurements (width, height and depth) with many more dimensions (e.g. time, costs, social impacts and environmental consequences) throughout a series of sequential phases in the lifecycle of a building. The current study was carried out in order to integrate vegetation systems (particularly green roof and green wall systems) and investigate thermal performance of the new Sainsbury’s building which will be built on Melton road, Leicester, United Kingdom. Within this scope, a 3-D building model of the news Sainsbury’s building was first developed in Autodesk?? Revit?? and this model was then simulated in Autodesk?? Ecotect??once weather data of the construction site was obtained from Autodesk?? Green Building Studio??. This study primarily analyzed data from (1) solar radiation, (2) heat gains and losses, and (3) heating and cooling loads simulation to evaluate thermal performance of the building integrated with vegetation system or conventionally available envelops. The results showed that building integrated vegetation system can potentially reduce internal solar gains on the building rooftops by creating a ‘bioshade’. Heat gains and losses through roofs and walls were markedly diminished by offering greater insulation on the building. Annual energy loads for heating and cooling were significantly reduced by vegetation more significantly through the green roof system in comparison to green wall system.

건물정보모델링과 공간객체중심 디자인모델의 활용

이진국 한양대학교 2012 韓國 生活 科學 硏究 Vol.32 No.1

This study aims to prepaThis paper describes how Building Information Modeling (BIM)-based design approach enables us to change the process of building design in terms of its computational representation and process. This paper also presents a newly developed way of building design approach using space objects. It is so-called BIM-enabled space object-centered building design. IFC (Industry Foundation Classes), as a neutral file format that is recently adopted in AEC-FM (Architecture, engineering, construction and facility management) industry for data exchange, provides the common building model schema from which several analyses and reviews are carried out even in early phase of building design. Space objects, like other building objects, can carry their information-rich space objects and space use semantics properties internally to the model. This article tackles some issues of space object, how building space objects can be organized and classified within BIM systems based on their semantics, and the reflection on best practices learned from some projects and application development. All the research and development features noted in this article are implemented as a plug-in or stand-alone application module that constitutes a broad range of BIM applications.re a suitable checklist for evaluating the facilities for children in Kid‘s cafes, based on the precedent studies about the facilities for infant and children who are the main users of Kid‘s cafes and the regulations for the facility management, and then suggest the base data for installing the facilities for children in Kid‘s cafes and organizing safety control standards. For this, a checklist which emphasized the safety for infants and children most and positively reflected their emotional and behavioral aspects in the evaluation items for the facilities, were organized and suggested. In this checklist with 47 items suggested through this study, the evaluation items for securing the safety and the sanitary facilities for infants and children, which guardians thought most importantly, accounted for the largest portion. This was the content of the standards for facilities which was not included in the standards for the approval of simple business, but this was considered as the essential evaluation items required for the prevention of the safety accidents for infants and children in Kid‘s cafes.

BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS

Cho, Chung-Suk,Chen, Don,Woo, Sungkwon Korean Institute of Building Information Modeling 2012 KIBIM Magazine Vol.2 No.1

With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.

Building Integrated Vegetation Systems into the New Sainsbury's Building Based on BIM

Lee, Dong-Kyu Korean Institute of Building Information Modeling 2014 KIBIM Magazine Vol.4 No.2

Today, there is a growing need of environment-friendly buildings, so-called 'green', facilities, and energy saving buildings to decrease environmental pollutants released into cities by construction activities. Green-Building Information Modeling (Green-BIM) is a purpose-built solution which supports to forecast energy consumption of 3-D model of a building by augmenting its primary 3-D measurements (width, height and depth) with many more dimensions (e.g. time, costs, social impacts and environmental consequences) throughout a series of sequential phases in the lifecycle of a building. The current study was carried out in order to integrate vegetation systems (particularly green roof and green wall systems) and investigate thermal performance of the new Sainsbury's building which will be built on Melton road, Leicester, United Kingdom. Within this scope, a 3-D building model of the news Sainsbury's building was first developed in $Autodesk^{(R)}$ $Revit^{(R)}$ and this model was then simulated in $Autodesk^{(R)}$ $Ecotect^{(R)}$once weather data of the construction site was obtained from $Autodesk^{(R)}$ Green Building $Studio^{(R)}$. This study primarily analyzed data from (1) solar radiation, (2) heat gains and losses, and (3) heating and cooling loads simulation to evaluate thermal performance of the building integrated with vegetation system or conventionally available envelops. The results showed that building integrated vegetation system can potentially reduce internal solar gains on the building rooftops by creating a 'bioshade'. Heat gains and losses through roofs and walls were markedly diminished by offering greater insulation on the building. Annual energy loads for heating and cooling were significantly reduced by vegetation more significantly through the green roof system in comparison to green wall system.

API(Application Program Interface)를 활용한 건축설계분야 BIM(Building Information Modeling) 업무환경 개선을 위한 연구

박경준(Park, kyoung Jun) 한국전시산업융합연구원 2017 한국과학예술융합학회 Vol.30 No.-

정보통신 기술의 발전과 빅데이터 활용 환경이 조성 되면서 국내 건설 분야에서도 건설정보 활용에 대한 요구가 점점 높아지고 있다. 이러한 현상은 건설정보를 활용한 새로운 기술 서비스 제공과 신규 사업모델 창출을 통해 기술 경쟁력 확보를 위한 필요성으로 나타나고 있다. 하지만 국내 건설 환경은 분리발주계약 방식의 영향으로 설계, 시공, 유지관리의 각 단계로의 건설 정보에 대한 일관성과 연속성을 확보 할 수 없는 구조적 문제를 지니고 있어 건설정보를 제대로 활용 할 수 없는 상황에 있다. 이러한 구조적 문제를 해결하고자 도입된 새로운 설계 기법이 BIM(Building Information Modeling)기술이다. 하지만 도입된 후 10여 년 동안 새로운 기술의 활용을 위해 많은 노력과 투자가 진행 되었음에도 불구하고 BIM(Building Information Modeling)을 적용하고 있는 기업들의 적용 수준을 전체적으로 보면 초기 단계 수준으로서 3D 모델을 이용한 간섭체크나 설계검토 등에 그치고 있는 실정이다. 이러한 한계를 극복하고자 본 연구에서는 국내 건축설계분야 BIM 활용 실태 조사를 통해 장애요인을 도출 하여 개선 방향을 수립 한 뒤 API(Application Program Interface) 활용한 개선 효과를 분석하여 건축설계 분야 BIM 활용 환경을 위한 새로운 대안을 제시 하였다. 최종적으로, 건축설계분야의 BIM 활용을 위한 업무환경 개선을 위해서는 업무의 편의성(User Friendly)확보, 작업의 효율성(Work efficiency) 향상, 국내 기준의 적합성(Conformity to standards)확보 문제를 해결 하고자 API를 활용한 Add-in 개발을 통해 사용자 중심으로 가능성을 검증하였다. 연구 결과는 다음과 같다. 첫째, 편리한 BIM 업무 환경으로 개선해 줌으로서 신기술에 대한 엔지니어들의 심리적 부담감과 거부감을 덜어 줄 수 있다. 둘째, API를 활용해 BIM작업의 효율성을 확보 할 수 있다. 셋째, 국내 실무환경에 적합한 기능 개선을 통해 건축설계 분야에서 BIM 활용도를 높일 수 있다. As the development of information and communication technology and the environment of utilizing big data are being developed, the demand for utilization of construction information in domestic construction field is increasing. This phenomenon appears to be a necessity to secure technological competitiveness by providing new technology service using construction information and creating new business model. However, the domestic construction environment has a structural problem that can not secure consistency and continuity of construction information at each stage of design, construction and maintenance due to the effect of the contract of separation order contract. is. A new design technique introduced to solve these struc tural problems is BIM (Building Information Modeling) te chnology. However, despite the many efforts and investments made to utilize the new technology for more than 10 years after introduction, the level of application of BIM(Building Information Modeling) And design review. In order to overcome these limitations, in this study, we investigated the application of BIM in the field of architectural design by analyzing the application program interface (API) And presented a new alternative. Finally, in order to improve the work environment for the BIM application in the field of architectural design, we need to improve the work efficiency, work efficiency, and conformity to standards. We verified the possibility of user-centered development through the use of add-in development. The results of the study are as follows. First, it can reduce the psychological burden and rejection of engineers about new technology by improving to convenient BIM work environment. Second, the efficiency of BIM work can be secured by using API. Third, BIM utilization can be improved in the field of architectural design by improving the function suitable for the domestic working environment.

논문 : 개방형 BIM 기반 유지관리를 위한 정보교환체계 구축에 관한 연구 -기계 설비를 중심으로-

조근하 ( Geun Ha Cho ),원지선 ( Ji Sun Won ),주기범 ( Ki Beom Ju ) 디자인융복합학회 2013 디자인융복합연구 Vol.12 No.1

최근 건설 생애주기 동안 발생하는 다양한 정보의 통합 및 관리의 방안으로 BIM(Building Information Modeling) 기술에 대한 관심이 급부상하고 있다. 건축물의 생애주기 중 가장 비용이 많이 들고 오랜 시간이 요구되는 단계는 유지관리 단계라고 할 수 있다. 이러한 측면에서 BIM의 적용효과를 크게 볼 수 있는 단계도 유지관리 단계이다. 하지만 BIM 기반의 유지관리의 이점을 갖추기 위해서는 제도적, 기술적 측면의 문제 해결이 필요하다. 그 중 기술적인 사항으로 각 단계 및 주체별로 생성되는 정보의 입력, 변환, 전달, 활용을 통한 교환체계가 핵심적으로 우선 정의되어야 한다. 본 연구에서는 이를 위해 표준기반의 정보교환체계 구축에 대한 방향성을 제시하고자 하며 특히 유지관리 단계의 주요 관리대상인 장비 및 기기를 중심으로 설계단계에서의 정보 교환체계를 제시함으로써 요구정보의 효과적인 통합을 가능하게 하고 정보가 효율적으로 활용 될 수 있는 기반을 마련할 것으로 기대한다. Recently, there is a growing interest in BIM(Building Information Modeling) technology as a solution for integration and management of created much information throughout life-cycle of the building project. In operation and management phase, the highest cost and time are required through life-cycle of the building. In other words, owners can make highly advantage by using BIM in this phase. However, there are a lot of legal and technical problems must be solved to achieve this. One of the priority is to establish information exchange system includes input, translation, transmission, and utilization of information occurred by each project phase. This paper suggests a direction for establishment of standard based information exchange system at the design phase. Especially the main assets to be managed information such equipment is aimed. As a result, the authors expect to integrate information efficiently and establish basic system for utilizing information effectively.