scholarly journals Requirements, Development, and Evaluation of A National Building Standard—A Swedish Case Study

2020 ◽  
Vol 9 (2) ◽  
pp. 78 ◽  
Author(s):  
Helen Eriksson ◽  
Tim Johansson ◽  
Per-Ola Olsson ◽  
Maria Andersson ◽  
Jakob Engvall ◽  
...  
Keyword(s):  
Classification System ◽  
International Standards ◽  
Legal Information ◽  
Industry Foundation Classes ◽  
Building Model ◽  
Information Models ◽  
Building Information ◽  
Requirements Development ◽  
Index Maps

The aim of this paper is to present a proposal for a national building standard in Sweden. We define requirements for the proposed standard, e.g., it should support development of 3D city models, connect to building information models (BIM) and national registers and be based on a national classification system for the urban environment. Based on these requirements we develop an Application Domain Extension (ADE) of the building model in the proposed CityGML 3.0 standard denoted CityGML Sve-Test. CityGML 3.0 includes several new features of interest, e.g., the space concept, enhanced possibilities to convert data, and to link to other standards. In our study we create test data according to CityGML Sve-Test and evaluate it against the requirements. It is shown that BIM models (in Industry Foundation Classes, IFC, format) can be converted to CityGML Sve-Test and that a classification system facilitates this conversion. The CityGML Sve-Test dataset can be used to increase the automation level in building permissions checking and a related study shows that CityGML 3.0 has capabilities to link to legal information and be a base for 3D cadastral index maps. Based on our experience, we suggest that the national building standard should conform to international standards and, if possible, include a classification system. The exchange format (GML, JSON etc.) might change, but to be based on a standardized data model ensures harmonized structures and concepts.

scholarly journals Data transfer between digital models of built assets and their operation & maintenance systems

2020 ◽  
Vol 25 ◽  
pp. 469-481
Author(s):  
Kay Rogage ◽  
David Greenwood
Keyword(s):  
Data Transfer ◽  
Hybrid Approach ◽  
Facilities Management ◽  
Industry Foundation Classes ◽  
Building Model ◽  
Building Models ◽  
Information Models ◽  
Building Information ◽  
The Many ◽  
Transfer Of Information

The operation and maintenance of built assets is crucial for optimising their whole life cost and efficiency. Historically, however, there has been a general failure in the transfer information between the design-and-construct (D&C) and operate-and-maintain (O&M) phases of the asset lifecycle. The recent steady uptake of digital technologies, such as Building Information Modelling (BIM) in the D&C phase has been accompanied by an expectation that this would enable better transfer of information to those responsible for O&M. Progress has been slow, with practitioners being unsure as to how to incorporate BIM into their working practices. Three types of challenge are identified, related to communication, experience and technology. In examining the last aspect, it appears that a major problem has been that of interoperability between building information models and the many computer-aided facilities management (CAFM) systems in use. The successful and automatic transfer of information from a building model to an FM tool is, in theory, achievable through the medium of the Industry Foundation Classes (IFC) schema. However, this relies upon the authoring of the model in terms of how well its structure permits the identification of relevant objects, their relationships and attributes. The testing of over 100 anonymised building models revealed that very few did; prohibiting their straightforward mapping to the maintenance database we had selected for the test. An alternative, hybrid approach was developed using an open-source software toolkit to identify objects by their geometry as well as their classification, thus enabling their automatic transfer. In some cases, manual transfer proved necessary. The implications are that while these problems can be overcome on a case-by-case basis, interoperability between D&C and O&M systems will not become standard until it is accommodated by appropriate and informed authoring of building models.

Ontology Engineering Method for Integrating Building Models

2014 ◽  
pp. 151-185 ◽  
Author(s):  
Mohamed El-Mekawy ◽  
Anders Östman
Keyword(s):  
Spatial Information ◽  
Unified Model ◽  
Industry Foundation Classes ◽  
Geography Markup Language ◽  
Building Model ◽  
Building Models ◽  
Information Models ◽  
Semantic Models ◽  
Great Heterogeneity ◽  
Building Information

The Industry Foundation Classes (IFC) and City Geography Markup Language (CityGML) are the two most prominent semantic models for the representation of Building Information Models (BIM) and geospatial objects. IFC and CityGML use different terminologies to describe the same domain, and there is a great heterogeneity in their semantics. For bidirectional conversions between these models, an intermediate Unified Building Model (UBM) is proposed that facilitates the transfer of spatial information from IFC to CityGML and vice versa. A unified model in the current study is defined as a superset model that is extended to contain all the features and objects from both IFC and CityGML building models. The conversion is a two-steps process in which a model is first converted to the unified model and then to the target model.

scholarly journals Maintenance of Buildings Using BIM Methodology

2014 ◽  
Vol 8 (1) ◽  
pp. 337-342 ◽  
Author(s):  
A.Z. Sampaio ◽  
Diogo Simões
Keyword(s):  
Software Tool ◽  
Good Tool ◽  
Standard Format ◽  
Industry Foundation Classes ◽  
Building Maintenance ◽  
Information Models ◽  
Building Information ◽  
Building Components ◽  
Inspection Data

Building maintenance is the responsibility of its owner which must use, whenever appropriate, a technician to perform the inspection. A good maintenance depends on the analysis of the anomalies detected during the inspection of the site. Building Information Models (BIM) have revealed themselves as a good tool when it comes to supporting maintenance actions, due to their ability to store enough information in one digital model. The aim of the proposed work was to implement the benefits provided by BIM on a software tool used as support to maintenance of buildings. During an inspection activity for maintenance purposes, the implemented application, containing a rigorous database, allows the user to identify each anomaly present in building components, directly onto the BIM model, automatically associating them with probable causes, repair methods and a photograph of the anomaly uploaded at the site. Therefore, gains in productivity and a decrease in the error probability can be achieved. The inspection data is stored in the BIM model, making it suitable for consultation when planning maintenance. Additionally, it was case study the interoperability between BIM modeling and visualizing software, regarding the preservation of information, especially in the standard format Industry Foundation Classes (IFC). This work contributed to demonstrate, not only that there are still problems concerning the interoperability between BIM software, but also the advantages of employing BIM for building maintenance purposes.

Feasibility of Building Information Models for 3D Cadastre in Unified City Models

2012 ◽  
Vol 1 (4) ◽  
pp. 35-58 ◽  
Author(s):  
Mohamed El-Mekawy ◽  
Anders Östman
Keyword(s):  
Building Model ◽  
Building Models ◽  
Information Models ◽  
3D Cadastre ◽  
Building Information ◽  
Hospital Building ◽  
Pdf Format ◽  
Boundary Surfaces ◽  
Cadastral Systems

The current cadastral systems are usually based on a 2D parcel maps and land registries having references to different documents. In many countries, the parcel maps, as well as the registries and referenced documents, are represented digitally. The 3D cadastral systems have usually a similar approach, where the descriptions of the 3D components are represented by drawings in PDF format. This article focuses on creating the 3D geometries corresponding to 3D property based on existing 3D building models. The article investigates shortages of IFC and CityGML, the most prominent semantic building models for representation of BIM and geospatial models respectively, as well as a unified building model (UBM) that was developed earlier for modelling complete and real 3D cadastre information system. The result shows that IFC, CityGML, nor the UBM has capabilities for such tasks. The article proposes an extension to the UBM in adding different subtypes to the boundary surfaces above and underground. The extended UBM is then implemented in a case study of a hospital building in Sweden. The implementation shows that by adding the four subtypes “Building Elements Surfaces,” “Digging Surfaces,” “Protecting Area Surfaces,” and “Real Estate Boundary Surfaces” of boundary surfaces, it has become possible to model all the needed surfaces that define 3D cadastral information of a building.

scholarly journals Design of Railway Track Model with Three-Dimensional Alignment Based on Extended Industry Foundation Classes

2020 ◽  
Vol 10 (10) ◽  
pp. 3649
Author(s):  
Tae Ho Kwon ◽  
Sang I. Park ◽  
Young-Hoon Jang ◽  
Sang-Ho Lee
Keyword(s):  
Classification System ◽  
Building Information Modeling ◽  
Three Dimensional ◽  
Software Tools ◽  
Information Modeling ◽  
Railway Track ◽  
Industry Foundation Classes ◽  
Information Models ◽  
Building Information ◽  
Track Test

Building information modeling (BIM) has been widely applied in conjunction with the industry foundation class (IFC) for buildings and infrastructure such as railways. However, a limitation of the BIM technology presents limitations that make designing the three-dimensional (3D) alignment-based information models difficult. Thus, the time and effort required to create a railway track model are increased, while the reliability of the model is reduced. In this study, we propose a methodology for developing an alignment-based independent railway track model and extended IFC models containing railway alignment information. The developed algorithm using BIM software tools allows for a discontinuous structure to be designed. The 3D alignment information connects different BIM software tools, and the classification system and IFC schema for expressing railway tracks are extended. Moreover, the classification system is fundamental for assigning IFC entities to railway components. Spatial and hierarchical entities were created through a developed user interface. The proposed methodology was implemented in an actual railway track test. The possibility of managing IFC-based railway track information, including its 3D alignment information, was confirmed. The proposed methodology can reduce the modeling time and can be extended to other alignment-based structures, such as roads.

Developing building information models (BIM) for building handover, operation and maintenance

2019 ◽  
Vol 17 (3) ◽  
pp. 301-316 ◽  
Author(s):  
Marjan Sadeghi ◽  
Jonathan Weston Elliott ◽  
Nick Porro ◽  
Kelly Strong
Keyword(s):  
Information Exchange ◽  
Model Development ◽  
Information Model ◽  
Content Type ◽  
Operation And Maintenance ◽  
Information Models ◽  
Building Information ◽  
Essential Input ◽  
Construction Operation

PurposeThis paper aims to represent the results of a case study to establish a building information model (BIM)-enabled workflow to capture and retrieve facility information to deliver integrated handover deliverables.Design/methodology/approachThe Building Handover Information Model (BHIM) framework proposed herein is contextualized given the Construction Operation Information Exchange (COBie) and the level of development schema. The process uses Autodesk Revit as the primary BIM-authoring tool and Dynamo as an add-in for extending Revit’s parametric functionality, BHIM validation, information retrieval and documentation in generating operation and maintenance (O&M) deliverables in the end-user requested format.FindingsGiven the criticality of semantics for model elements in the BHIM and for appropriate interoperability in BIM collaboration, each discipline should establish model development and exchange protocols that define the elements, geometrical and non-geometrical information requirements and acceptable software applications early in the design phase. In this case study, five information categories (location, specifications, warranty, maintenance instructions and Construction Specifications Institute MasterFormat division) were identified as critical for model elements in the BHIM for handover purposes.Originality/valueDesign- and construction-purposed BIM is a standard platform in collaborative architecture, engineering and construction practice, and the models are available for many recently constructed facilities. However, interoperability issues drastically restrict implementation of these models in building information handover and O&M. This study provides essential input regarding BIM exchange protocols and collaborative BIM libraries for handover purposes in collaborative BIM development.

Managing Real-Time Information Within BIM-Based Processes for Assessing Building Behaviours in Operation

2016 ◽  
Vol 5 (4) ◽  
pp. 25-38
Author(s):  
Daniela Pasini ◽  
Angelo Luigi Camillo Ciribini ◽  
Bruno Daniotti
Keyword(s):  
Real Time ◽  
Asset Management ◽  
Control Strategies ◽  
Industry Foundation Classes ◽  
Information Models ◽  
Building Process ◽  
Building Management ◽  
Building Information ◽  
Physical Assets ◽  
Real Time Information

Considering the remarkable shift that the digitalisation is nowadays bringing about in the building sector, the paper focuses on how the great amount of data collected around assets is changing the way buildings are operated, particularly for what concerns innovation on products, processes and technologies. By establishing a connection between as-designed virtual models and as-delivered physical assets, the paper presents methods and tools based on information management and developed for assessing building behaviours in operation and for defining control strategies for satisfying user needs. The research aims to investigate how the building process could benefit from the availability of multi-faceted information collected in real time (e.g. through sensors) during the operational stages of buildings. Digitally-enabled practices and technologies have been developed and tested for improving a data-driven asset management, by enriching Building Information Models through data gathered through Building Management Systems, according to the Industry Foundation Classes schema.

scholarly journals An openBIM Approach to IoT Integration with Incomplete As-Built Data

2020 ◽  
Vol 10 (22) ◽  
pp. 8287
Author(s):  
Nicola Moretti ◽  
Xiang Xie ◽  
Jorge Merino ◽  
Justas Brazauskas ◽  
Ajith Kumar Parlikad
Keyword(s):  
Asset Management ◽  
Time Data ◽  
Industry Foundation Classes ◽  
Semantic Data ◽  
Information Models ◽  
Digital Twins ◽  
Building Information ◽  
Good Potential ◽  
Building Life Cycle ◽  
Asset Data

Digital Twins (DT) are powerful tools to support asset managers in the operation and maintenance of cognitive buildings. Building Information Models (BIM) are critical for Asset Management (AM), especially when used in conjunction with Internet of Things (IoT) and other asset data collected throughout a building’s lifecycle. However, information contained within BIM models is usually outdated, inaccurate, and incomplete as a result of unclear geometric and semantic data modelling procedures during the building life cycle. The aim of this paper is to develop an openBIM methodology to support dynamic AM applications with limited as-built information availability. The workflow is based on the use of the IfcSharedFacilitiesElements schema for processing the geometric and semantic information of both existing and newly created Industry Foundation Classes (IFC) objects, supporting real-time data integration. The methodology is validated using the West Cambridge DT Research Facility data, demonstrating good potential in supporting an asset anomaly detection application. The proposed workflow increases the automation of the digital AM processes, thanks to the adoption of BIM-IoT integration tools and methods within the context of the development of a building DT.

scholarly journals BIM-Based E-Procurement: An Innovative Approach to Construction E-Procurement

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
António Aguiar Costa ◽  
António Grilo
Keyword(s):  
Supply Chain ◽  
Knowledge Base ◽  
Innovative Approach ◽  
Electronic Instrument ◽  
Procurement Process ◽  
Information Models ◽  
Building Information ◽  
Building Information Models

This paper presents an innovative approach to e-procurement in construction, which uses building information models (BIM) to support the construction procurement process. The result is an integrated and electronic instrument connected to a rich knowledge base capable of advanced operations and able to strengthen transaction relationships and collaboration throughout the supply chain. The BIM-based e-procurement prototype has been developed using distinct existing electronic solutions and an IFC server and was tested in a pilot case study, which supported further discussions of the results of the research.

scholarly journals DEVELOPING IFC FOR INFRASTRUCTURE: A CASE STUDY OF THREE HIGHWAY ENTITIES

2019 ◽  
Vol IV-4/W8 ◽  
pp. 59-66
Author(s):  
G. S. Floros ◽  
G. Boyes ◽  
D. Owens ◽  
C. Ellul
Keyword(s):  
Asset Management ◽  
Information Exchange ◽  
Data Exchange ◽  
Retaining Wall ◽  
Maintenance Phase ◽  
Future Research ◽  
Industry Foundation Classes ◽  
Research Fields ◽  
Building Information

<p><strong>Abstract.</strong> Modern cities pay particular attention to upscale their infrastructure systems in order to improve the every-day life of their citizens and lead the way towards a more sustainable environment. As part of this, they invest extensive funds in large infrastructure projects which are challenging to deliver as they require an e efficient communication among different professions, in order to share information efficiently throughout the lifecycle of the project, thus highlighting the importance of standardization to maintain consistency and integrity during data exchange. Building Information Modelling (BIM) aims to facilitate the above-mentioned requirements by describing the life-cycle of the project and Industry Foundation Classes (IFC) is the Standard for BIM that enables an efficient storage, management, exchange and visualization of information. However, there are two important challenges that need to be addressed: (i) IFC focuses particularly on buildings and provides limited support for infrastructure elements and (ii) the information exchange aims to describe mostly the construction phase; highlighting the lack of classes that refer to the operation and maintenance phase. Within this context, this paper proposes the extension of Industry Foundation Classes (IFC) for Asset Management in Infrastructure. A method is developed based on a case study of three highway entities: (i) retaining wall, (ii) gantry and (iii) bridge and a conceptual extension is presented. The results are further discussed and recommendations regarding future research fields are proposed.</p>

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