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Geometry and geospatial data on the web
Published in Pieter Pauwels, Kris McGlinn, Buildings and Semantics, 2023
Anna Wagner, Mathias Bonduel, Jeroen Werbrouck, Kris McGlinn
IFC is a standard for data exchange to support interoperability between software applications. A method using R2RML for converting geospatial data into ifcOWL, a serialisation of the IFC schema, is presented. It has been demonstrated that from a set of relatively simply geometric inputs, a skeleton ifcOWL model is generated which includes additional semantics not present in the geospatial data, such as the definition of external walls. To adhere to the IFC schema, the required R2RML mappings are largely due to the many different relations in IFC and also the complex Oracle queries which convert the underlying geospatial data, for example the coordinate system, and to generate geometries. The mapping and a sample data output (both as RDF and STEP) can be found here30). The outputs of these mappings have been validated using a combination of constraints in the Shapes Constraint Language (SHACL) and available open source software [371]. The method provides a basis for converting any geospatial dataset into IFC and should be of interest to owners of geospatial datasets as it provides potential new sources of revenue. By taking the linked data approach, this data can then live alongside a growing evolving data space of building data, and through organisations like Ordnance Survey Ireland, authoritative URIs for buildings in Ireland can become available for building data owners to link to and re-use.
BIM and BPS
Published in Jan L.M. Hensen, Roberto Lamberts, Building Performance Simulation for Design and Operation, 2019
Timothy Hemsath, Matthew Goldsberry, Joel Yow
Once information is embedded in the model, this information can be shared. Interoperability is the flow of information from one model to another, from BIM to BPS. Different types of data are more interoperable than are others. The National BIM Standard (NIBS 2018) and the International Organization for Standardization (ISO) level established the Industry Foundation Class (IFC) facilitating interoperability as “the ability of two or more systems or components to exchange information and to use the information that has been exchanged”. The IFC is a neutral exchange format for interoperability, therefore allowing the exchange of information from one software to another. Important to BPS is the way that the BIM defines “structural and energy analyses, cost estimation and schedule the construction, fabrication issues for each subsystem, plus much more. Interoperability identifies the need to pass data between applications, and for multiple applications to jointly contribute to the work at hand” (Eastman et al. 2008). Therefore, an interoperable BIM eliminates the need to replicate data input to facilitate smooth workflows and automation with BPS.
Design-to-design exchange of bridge models using IFC: A case study with Revit and Allplan
Published in Jan Karlshøj, Raimar Scherer, eWork and eBusiness in Architecture, Engineering and Construction, 2018
Maintained by buildingSmart, Industry Foundation Classes is the most prominent vendor-neutral, international standard for exchanging BIM data in the AEC industry. It is widely supported by BIM authoring and downstream tools. In a broader sense, IFC is a Product Data Model (often called “schema”) which provides general definitions of objects to address all building information throughout the whole building lifecycle. In this paper, the reader will come across a term “IFC file” which is a population of the IFC schema. An IFC file follows the patterns and constraints stipulated by the schema and contains the actual instances of the IFC classes. Generally, such models are called populated data models, however, if their content is construction-specific, they are named Building Information Models.
Web-based approach for systematic analysis and interactive visualization of the industry foundation classes data: a case study in duct design
Published in Journal of Asian Architecture and Building Engineering, 2023
Hongxia Deng, Ying Liu, Yumeng Liu, Lei Xu, Chongen Wang
IFC specification is a neutral, open-file format that provides a platform for data exchange throughout the life cycle of building projects. Park et al. (2018) described an information modeling method for steel box girder bridges based on IFC and estimated the carbon emission from the superstructure of a steel bridge model using the quantity take-off and proposed user-defined Psets of each component. The detailed quantities and carbon emissions are listed in text boxes. G. Benndorf et al. (Benndorf et al. 2017) described the application of IFC in building automation and control systems (BACS) and extended IFC files exported from a BIM tool for heating, ventilation, and air-conditioning (HVAC) control using the open-source library IfcOpenShell. Referring to the relationship class IfcRelNests, the sensor, actuator, and controller are connected by ports defined by the IfcDistributionPort class in the temperature-controlled heating circuit. Psets, such as heating curve and time schedule are added to the circuit. This application is one of the examples of using IFC in MEP engineering, but it lacks the description of the whole heating circuit and the control system.
Development of historic building information modelling: a systematic literature review
Published in Building Research & Information, 2022
Sumeyye Sena Bastem, Asli Cekmis
After the point clouds are transformed into a model, an information model is created by adding semantic information (López et al., 2017; Martínez-Carricondo et al., 2020; Quattrini et al., 2016, 2017a; Yang et al., 2016). The added semantic information enhances the data richness of the model and the object library, and allow these to be interpreted (Di Luggo & Scandurra, 2016; Ioannides et al., 2017; Quattrini et al., 2017a) The 3D information model thus created can be used in documentation, analysis, digital application (virtual tours, virtual tourism, and digital reconstruction, etc.), conservation, diagnosis, and restoration and management procedures (Amoruso & Manti, 2016; Antonopoulou & Bryan, 2017; Maietti et al., 2017). Industry Foundation Classes (IFC) are used for transferring the data to different applications. IFC is the interchange format that enables data exchange (Antonopoulou & Bryan, 2017; Arayici, 2008; Bim Dictionary, 2019; Volk et al., 2014).
Building information modelling to mitigate the health and safety risks associated with the construction industry: a review
Published in International Journal of Occupational Safety and Ergonomics, 2021
There are many technologies that are available in the construction industry that can work in collaboration with BIM to enhance safety on site. The Industry Foundation Class (IFC) refers to the open and neutral data format that is used to share construction information pertaining to the building information model. The IFC is an open standard to represent the information in a building information model that can be used to openly exchange and share this information among many different software systems. The IFC specification is owned by buildingSMART, an international non profit organization that aims to develop and maintain the IFC as part of its mission to support companies within the architecture, engineering and construction (AEC)/facilities management (FM) industries. The IFC is open sourced and not owned by a single vendor or group and is developed by individuals who contribute to its progress and allow it to be freely available online [40].