scholarly journals An Algorithm to Translate Building Topology in Building Information Modeling into Object-Oriented Physical Modeling-Based Building Energy Modeling

Energies ◽  
2016 ◽  
Vol 9 (1) ◽  
pp. 50 ◽  
Author(s):  
WoonSeong Jeong ◽  
JeongWook Son
Keyword(s):  
Physical Modeling ◽  
Building Information Modeling ◽  
Object Oriented ◽  
Building Energy ◽  
Energy Modeling ◽  
Information Modeling ◽  
Building Energy Modeling ◽  
Building Information

scholarly journals Building Information Modeling-Based Building Energy Modeling: Investigation of Interoperability and Simulation Results

2020 ◽  
Vol 6 ◽  
Author(s):  
Mohamed H. Elnabawi
Keyword(s):  
Large Scale ◽  
Building Information Modeling ◽  
Data Transfer ◽  
Building Design ◽  
Building Energy ◽  
Energy Modeling ◽  
Low Energy ◽  
Information Modeling ◽  
Building Energy Modeling ◽  
Building Information

There is increasing need to apply building information modeling (BIM) to low energy buildings, this includes building energy modeling (BEM). If a building energy model can be flawlessly generated from a BIM model, the energy simulation process can be better integrated within the design, can be more competent, and timesaving. However, concerns about both the reliability and integrity of the data transfer process and the interoperability between the BIM and BEM prevent any implementation of BIM-based energy modeling on a large scale. This study addresses the accuracy and integrity of BIM-based energy modeling by investigating how well Autodesk's Revit (BIM), in conjunction with two of the most used energy modeling programs (BEM) known as DesignBuilder and Virtual Environment (IES-ve), were integrated in terms of interoperability, including location and weather files, geometry, construction and materials, thermal zones, occupancy operating schedules, and HVAC systems. All misrepresented data during the interoperability process were identified, followed by benchmarking between the BIM-based energy modeling simulation outcomes and the actual energy consumption of the case study, to assess the reliability of the process. The investigation has revealed a number of interoperability issues regarding the BIM data input and BEM data interpretation. Overall, BIM-based energy modeling proved to be a promising tool for sustainable and low energy building design, however, the BIM to BEM process is a non-standardized method of producing building energy models as it varies from one modeler to another, and the BIM to BEM process. All these might slow down any possible application for the process and might cause some uncertainties for the professionals in the field applying it.

scholarly journals Translating Building Information Modeling to Building Energy Modeling Using Model View Definition

2014 ◽  
Vol 2014 ◽  
pp. 1-21 ◽  
Author(s):  
WoonSeong Jeong ◽  
Jong Bum Kim ◽  
Mark J. Clayton ◽  
Jeff S. Haberl ◽  
Wei Yan
Keyword(s):  
Process Model ◽  
Building Information Modeling ◽  
Data Modeling ◽  
Building Energy ◽  
Energy Modeling ◽  
Information Modeling ◽  
Class Diagram ◽  
Building Energy Modeling ◽  
Building Information ◽  
Model View

This paper presents a new approach to translate between Building Information Modeling (BIM) and Building Energy Modeling (BEM) that uses Modelica, an object-oriented declarative, equation-based simulation environment. The approach (BIM2BEM) has been developed using a data modeling method to enable seamless model translations of building geometry, materials, and topology. Using data modeling, we created a Model View Definition (MVD) consisting of a process model and a class diagram. The process model demonstrates object-mapping between BIM and Modelica-based BEM (ModelicaBEM) and facilitates the definition of required information during model translations. The class diagram represents the information and object relationships to produce a class package intermediate between the BIM and BEM. The implementation of the intermediate class package enables system interface (Revit2Modelica) development for automatic BIM data translation intoModelicaBEM. In order to demonstrate and validate our approach, simulation result comparisons have been conducted via three test cases using (1) the BIM-based Modelica models generated fromRevit2Modelicaand (2) BEM models manually created using LBNL Modelica Buildings library. Our implementation shows thatBIM2BEM(1) enables BIM models to be translated intoModelicaBEMmodels, (2) enables system interface development based on the MVD for thermal simulation, and (3) facilitates the reuse of original BIM data into building energy simulation without an import/export process.

Ein Modell zur objektorientierten Gefährdungsbeurteilung im Hochbau/A model for object-oriented hazards assessment in building construction

Bauingenieur ◽  
2019 ◽  
Vol 94 (07-08) ◽  
pp. 276-284
Author(s):  
Jürgen Melzner ◽  
Hans-Joachim Bargstädt
Keyword(s):  
Building Information Modeling ◽  
Object Oriented ◽  
Building Construction ◽  
Information Modeling ◽  
Hazards Assessment ◽  
Sind Eine ◽  
Building Information

Zusammenfassung Die Unfallhäufigkeit auf deutschen Baustellen ist mehr als doppelt so hoch als in den übrigen Wirtschaftszweigen. Unfälle ereignen sich unter anderem aufgrund von Versäumnissen in der Identifikation von unsicheren Arbeitsbedingungen, bevor ein Arbeitsprozess ausgeführt wird. Die modellbasierte Arbeitsweise in der Bauindustrie ist ein Trend, der sich in den vergangenen Jahren mehr und mehr durchsetzt. In diesem Zusammenhang wird oft der Begriff Building Information Modeling (BIM) verwendet. BIM baut auf dem Konzept der 3D-Modellierung durch die Einbeziehung nicht-grafischer Objektdaten in das Modell auf. Bauwerksinformationsmodelle sind eine vielversprechende Entwicklung im Bausektor und können auch zur Gestaltung sicherer Arbeitsbedingungen genutzt werden. Nur wenige Forschungsaktivitäten weltweit sind bisher auf die Nutzung von Bauwerksinformationsmodellen bei der Identifikation von Gefährdungen von Bauprozessen ausgerichtet. Gegenstand der vorliegenden Arbeit ist die Integration der modellbasierten Arbeitsweise in die Prozesse der Gefährdungsbeurteilung. Auf Grundlage von Algorithmen zur systematischen Identifikation und Kategorisierung von Gefährdungen wurde ein Modell entwickelt, das Gefährdungen objekt-, prozess- und umfeldspezifisch identifiziert und in einer objektorientierten Datenbank erfasst. Das vorgestellte Konzept wurde hinsichtlich Anwendbarkeit und praktischer Relevanz an ausgewählten Beispielszenarien nachgewiesen.

scholarly journals Method for Building Information Modeling Supported Project Control of Nearly Zero-Energy Building Delivery

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5519
Author(s):  
Sanjin Gumbarević ◽  
Ivana Burcar Dunović ◽  
Bojan Milovanović ◽  
Mergim Gaši
Keyword(s):  
Building Information Modeling ◽  
Control Method ◽  
Energy Simulation ◽  
Energy Modeling ◽  
Information Modeling ◽  
Project Delivery ◽  
Control Procedure ◽  
Project Control ◽  
Zero Energy ◽  
Building Information

With the increasing number of nearly zero-energy buildings (NZEB) due to increase of global awareness on climate change, the new concepts of design and control must be developed because of great NZEB dependency on detailing and multidisciplinary approach. This paper proposes a three-level gateway control method for NZEB project delivery by using digital representation of the building in building information modeling (BIM) environment. These controls (C1, C2 and C3) are introduced before three main phases of any project delivery—design phase, construction phase and handover. The proposed project control procedure uses black-box building energy modeling within the BIM environment, so the paper explores the reliability of one tool for direct energy modeling within the BIM-authoring software. The paper shows two types of validation tests with satisfactory results. This leads to conclusion that analyzed tool for energy simulation within BIM environment can be used in a way that is described in a proposed project control procedure. For further research it is proposed to explore reliability of tools for energy simulation connected to other BIM-authoring software, so this project control procedure could be independent of BIM-authoring software used in the paper.

Research on Unified Storage Format for Building Information Modeling

2013 ◽  
Vol 860-863 ◽  
pp. 2834-2837
Author(s):  
Jing Ling Yuan ◽  
Rui Tu ◽  
Yan Yuan ◽  
Jing Xie
Keyword(s):  
Information Exchange ◽  
Building Information Modeling ◽  
Building Energy ◽  
Information Modeling ◽  
Building Industry ◽  
Global Information ◽  
Building Energy Efficiency ◽  
Management Platform ◽  
Building Information ◽  
Storage Format

With the constant development of global information technology in building industry, different vendors utilize their own format to store building information modeling; however the incompatibility among these formats obstructs the use and share of the modeling information. Targeting the information exchange and share in each phase of the whole building lifecycle and promoting the energy saving and emission reducing buildings, this paper introduces the information on IFC standards, then discusses the mainstream share formats (.ifc and .ifcXML) in building industry, and compares and analyzes the differences between them, in order to provide leading support for the management platform of data information on building energy efficiency.

scholarly journals Changing Design Cognition

2021 ◽  
pp. 279-284
Author(s):  
Paolo Fiamma
Keyword(s):  
Building Information Modeling ◽  
Object Oriented ◽  
Digital Design ◽  
Information Modeling ◽  
Digital Representation ◽  
Master Program ◽  
Modeling Methodology ◽  
The World ◽  
Building Information ◽  
Cognitive Paradigms

<p>Building Information Modeling methodology is the current interest for many didactic programs around the world. May be the Master program can be an opportunity to understand the whole BIM concept in the AEC industry. In the Master BIM in Pisa, Italy we are teaching an approach that is not only “tech”. In the Building Information Modeling methodology, the digital representation receives a new strategic task in the world of construction: reducing the gap between the “res aedificanda” and its simulation via object-oriented graphics. Developing research on this way means to offer new powerful opportunities to re-think the link between “the fact” and “its representation”. There is a strong link between graphics approach and cognitive paradigms in design architecture. If the Building Information Modeling could be an answer for the actual needs of the world of AEC, digital design in BIM becomes the way to think the whole project “as one”. In the BIM graphics environment, the digital drawing changes the sign in ontology. To sum up, we are moving beyond vision to "experience" the design before it is built: we design the constructive ontology according to our experience of the “fabrica”. Modeling the interaction means represent the process through the time.</p>

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