• Title/Summary/Keyword: Building Object Information

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Extension of IFC information Modeling for Fire Safety based on WBS (작업분류체계 기반 소방 객체 IFC 정보 모델링 확장 방안 연구)

  • Won, Junghye;Kim, Taehoon;Choo, Seoungyeon
    • Journal of KIBIM
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    • v.13 no.2
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    • pp.37-46
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    • 2023
  • The main objective of this study is to propose a method to enhance building safety using the Industry Foundation Classes (IFC) schema in Building Information Modeling (BIM). To achieve this goal, a fire object relationship diagram is created by using the Model View Definition (MVD) and Property Set (Pset) methodology, as well as the Work Breakdown Structure (WBS) based object relationship analysis. The proposed method illustrates how to represent objects and tasks related to fire prevention and human safety during a building fire, including variables that are relevant to these aspects. Furthermore, the proposed method offers the advantage of considering both the IFC object hierarchy and the project work hierarchy when creating new objects, thereby expanding the attribute information for fire safety and maintenance. However, upon confirmation via an IFC viewer after development, a problem with the accuracy of mapping between attributes and objects arises due to the issue of proxy representation of related object information and newly added object information in standard IFC. Therefore, in future research, a mapping method for fire safety objects will be developed to ensure accurate representation, and the scope of utilization of the fire safety object diagram will be expanded. Furthermore, efforts will be made to enhance the accuracy of object and task representation. This research is expected to contribute significantly to the technological development of building safety and fire facility design in the future.

The Necessity of Development of BIM-Based Object Library for the Improvement of Effectiveness in Maintenance Work (유지관리 업무 효율성 향상을 위한 BIM기반 유지관리 시설물 객체 라이브러리 구축 개발의 필요성)

  • Kim, Ka-Ram;Lim, Chul-Woo;Yu, Jung-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2010.05a
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    • pp.231-234
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    • 2010
  • Recently, the construction industry has been changed more highly and complicacy. According to this, several informational systems of maintenance are introduced suitable the work and the purpose of each maintenance. However there are some problems in the manage the information of maintenance management by without the standization and systematic management of variable information from building life-cycle. This paper purposed the process of creation or management of information which is used for present maintenance through IFC-based facilities object library development is suggested for work efficiency of maintenance management. In addition, it can minimize the reproduce the same information unnecessarily. Fainally, it makes information compatibility through the building life-cycle highly by define the IFC-based object information and standardize the format of information.

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A Framework Development for BIM-based Object-Oriented Physical Modeling for Building Thermal Simulation (객체지향 물리적 모델링 기법을 활용한 BIM기반 통합 건물에너지 성능분석 모델 구축 및 활용을 위한 프레임워크 개발 - 건물 열부하 시뮬레이션 중심으로 -)

  • Jeong, WoonSeong
    • KIEAE Journal
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    • v.15 no.5
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    • pp.95-105
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    • 2015
  • Purpose: This paper presents a framework development for BIM (Building Information Modeling)-based OOPM (Object-Oriented Physical Modeling) for Building Thermal Simulation. The framework facilitates decision-making in the design process by integrating two object-oriented modeling approaches (BIM and OOPM) and efficiently providing object-based thermal simulation results into the BIM environment. Method: The framework consists of a system interface between BIM and OOPM-based building energy modeling (BEM) and the visualization of simulation results for building designers. The interface enables a BIM models to be translated into OOPM-based BEM automatically and the thermal simulation from the created BEM model immediately. The visualization module enables the simulation results to be presented in BIM for building designers to comprehend the relationships between design decisions and the building performances. For the framework implementation, we utilized the Modelica Buildings Library developed by the Lawrence Berkeley National Laboratory as a thermal simulation solver. We also conducted an experiment to validate the framework simulation results and demonstrate our framework. Result: This paper demonstrates a new methodology to integrate BIM and OOPM-based BEM for building thermal simulation, which enables an automatic translation BIM into OOPM-based BEM with high efficiency and accuracy.

Analysis for BIM Object Information Compatibility Problem Classification Among BIM Softwares (BIM 소프트웨어 간의 객체 정보 호완성 문제 유형 분석)

  • Lim, Chul-Woo;Yu, Jung-Ho;Kim, Chang-Duk
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2010.05a
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    • pp.257-260
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    • 2010
  • The Architecture, engineering & construction (AEC) industry domains have grown more complex and larger. BIM is a digital representation of a building to facilitate the exchange and development of construction information integration and interoperability. Industry Foundation Classes (IFCs), under development by International Alliance for Interoperability (IAI), represent the part of buildings or elements of a process. IFC has been adopted as a central information repository in order to deliver integrated information. BIM softwares could open the IFC file, recognize standard objects. However, sometimes, information distortion or information loss occurs during information exchange. As project participants exchange BIM information by using BIM softwares they will need a reliable and efficient exchange of information. This paper suggests the BIM object information compatibility problems among BIM softwares and classify the BIM object information compatibility problems.

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Study on 3D Object (Building) Update and Construction Method for Digital Twin Implementation (디지털 트윈 구현을 위한 3차원 객체(건물) 갱신 및 구축 방안 연구)

  • Kwak, Byung-Yong;Kang, Byoung-Ju
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.44 no.4
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    • pp.186-192
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    • 2021
  • Recently, the demand for more precise and demand-oriented customized spatial information is increasing due to the 4th industrial revolution. In particular, the use of 3D spatial information and digital twins which based on spatial information, and research for solving social problems in cities by using such information are continuously conducted. Globally, non-face-to-face services are increasing due to COVID-19, and the national policy direction is also rapidly progressing digital transformation, digitization and virtualization of the Korean version of the New Deal, which means that 3D spatial information has become an important factor to support it. In this study, physical objects for cities defined by world organizations such as ISO, OGC, and ITU were selected and the target of the 3D object model was limited to buildings. Based on CityGML2.0, the data collected using a drone suitable for building a 3D model of a small area is selected to be updated through road name address and building ledger, which are administrative information related to this, and LoD2.5 data is constructed and urban space. It was intended to suggest an object update method for a 3D building among data.

A Sharing Scheme for Connection Mamagement Objects in Different Distributed Processing Environments (이기종 분산처리환경상에서 연결관리 객체의 정보공유)

  • 신영석;오현주
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.22 no.4
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    • pp.793-803
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    • 1997
  • Open networking architecture is required to support new multimedia services as integrated functions of network management and service architecture. In this paper, we propose the methodology of building block modeling using object grouping concepts and the sharing scheme of different distributed processing environments based on open networking architecture. The building block has the functions of object management, security object instance registry and object mapping in object group. It is necessary for the connection management information to be shared on the interworking between two domains. We implemented and validated connection management functions using computational object modeling and building block modeling in different distributed processing environments.

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AN AUTOMATED FORMWORK MODELING SYSTEM DEVELOPMENT FOR QUANTITY TAKE-OFF BASED ON BIM

  • Seong-Ah Kim;Sangyoon Chin;Su-Won Yoon;Tae-Hong Shin;Yea-Sang Kim;Cheolho Choi
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1113-1116
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    • 2009
  • The attempt to use a 3D model each field such as design, structure, construction, facilities, and estimation in the construction project has recently increased more and more while BIM (Building Information Modeling) that manages the process of generating and managing building data has risen during life cycle of a construction project. While the 2D Drawing based work of each field is achieved in the already existing construction project, the BIM based construction project aims at accomplishing 3D model based work of each field efficiently. Accordingly, the solution that fits 3D model based work of each field and supports plans in order to efficiently accomplish the relevant work is demanded. The estimation, one of the fields of the construction project, has applied BIM to calculate quantity and cost of the building materials used to construction works after taking off building quantity information from the 3D model by a item for a Quantity Take-off grouping the materials relevant to a 3D object. A 3D based estimation program has been commonly used in abroad advanced countries using BIM. The program can only calculate quantity related to one 3D object. In other words, it doesn't support the take-off process considering quantity of a contiguous object. In case of temporary materials used in the frame construction, there are instances where quantity is different by the contiguous object. For example, the formwork of the temporary materials quantity is changed by dimensions of the contiguous object because formwork of temporary materials goes through the quantity take-off process that deduces quantity of the connected object when different objects are connected. A worker can compulsorily adjust quantity so as to recognize the different object connected to the contiguous object and deduces quantity, but it mainly causes the confusion of work because it must complexly consider quantity of other materials related to the object besides. Therefore, this study is to propose the solution that automates the formwork 3D modeling to efficiently accomplish the quantity take-off of formwork by preventing the confusion of the work which is caused by the quantity deduction process between the contiguous object and the connected object.

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Design Object Model for Implementation of Integrated Structural Design System for Building Structures (건물 구조 통합 구조설계 시스템의 구현을 위한 설계 객체 모델)

  • 천진호;박연수;이병해
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.13 no.1
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    • pp.115-127
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    • 2000
  • The purpose of this study is to propose the Design Object Model for implementation of an integrated structural design system for building structures. This study outlines the step-by-step development methodologies of the Design Object Model, which covers classification and modeling of the building design information. The Design Object Model has been efficiently developed through the proposed development methodologies. As a result, the Design Object Model has been proved to be efficient in design information management by representing the information from planning perspective, in recognition of structural member in space by the topology design object, and in representation of analysis s design information.

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A design concept on object database of measurement data for building a safety management network of road bridges (도로 교량의 안전관리 네트워크 구축을 위한 계측자료의 객체 데이터베이스 설계 개념)

  • Park, Sang-Il;An, Hyun-Jung;Kim, Hoy-Jin;Lee, Sang-Ho
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2008.04a
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    • pp.518-523
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    • 2008
  • In this study, we analyzed applicability of object database, designed the concept model based on object-oriented idea for measurement data management, and applied the design model to object database. The concept model composes three sub models Infrastructure managing information model, Infrastructure measurement data model, and Measurement unit model. The process to expand measurement data of new type was executed easily without changing database schema in object database. The process to expand measurement data of new type was executed easily without changing database schema in object database. Therefore, applicability of new technology to infrastructures for building a safety management network of road bridges could be increased with object database system.

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Building Information-rich Maps for Intuitive Human Interface Using Networked Knowledge Base

  • Ryu, Jae-Kwan;Kanayama, Chie;Chong, Nak-Young
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.1887-1891
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    • 2005
  • Despite significant advances in multimedia transferring technologies in various fields of robotics, it is sometimes quite difficult for the operator to fully understand the context of 3D remote environments from 2D image feedback. Particularly, in the remote control of mobile robots, the recognition of the object associated with the task is very important, because the operator has to control the robot safely in various situations not through trial and error. Therefore, it is necessary to provide the operator with 3D volumetric models of the object and object-related information as well such as locations, shape, size, material properties, and so on. Thus, in this paper, we propose a vision-based human interface system that provides an interactive, information-rich map through network-based information brokering. The system consists of an object recognition part, a 3D map building part, a networked knowledge base part, and a control part of the mobile robot.

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