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25-551: The format was developed by Tekla and Solibri and later adopted as a standard by buildingSMART . Most major BIM modelling software platforms support some integration with BCF, typically through plug-ins provided by the BCF server vendor. Although the BCF was originally conceived as a file base there are now many implementations using the cloud-based collaborative workflow described in the BCF API, including Open Source implementation as part of

50-462: A concept of identity (having a GUID ), along with attributes for name, description, and revision control. Non-rooted entities do not have identity and instances only exist if referenced from a rooted instance directly or indirectly. IfcRoot is subdivided into three abstract concepts: object definitions, relationships, and property sets: IfcObjectDefinition is split into object occurrences and object types. IfcObject captures object occurrences such as

75-513: A concept of ports where elements may have specific connections for various services, and connected together using cables, pipes, or ducts to form a system. Various connectivity relationships are used for building elements such as walls having openings filled by doors or windows. Materials may be defined for products as a whole, or as layers, profiles, or constituents for specified parts. Representations may be defined for explicit 3D shape, and optionally as parametric constraints. Each representation

100-694: A product installation having serial number and physical placement. IfcTypeObject captures type definitions (or templates) such as a product type having a particular model number and common shape. Occurrences and types are further subdivided into six fundamental concepts: actors ("who"), controls ("why"), groups ("what"), products ("where"), processes ("when"), and resources ("how"). IfcRelationship captures relationships among objects. There are five fundamental relationship types: composition, assignment, connectivity, association, and definition. IfcPropertyDefinition captures dynamically extensible property sets. A property set contains one or more properties which may be

125-517: A research project experimenting with turning IFC into a binary format. IFC defines an EXPRESS based entity-relationship model consisting of several hundred entities organized into an object-based inheritance hierarchy. Examples of entities include building elements such as IfcWall, geometry such as IfcExtrudedAreaSolid, and basic constructs such as IfcCartesianPoint. At the most abstract level, IFC divides all entities into rooted and non-rooted entities. Rooted entities derive from IfcRoot and have

150-801: A single value (e.g. string, number, unit measurement), a bounded value (having minimum and maximum), an enumeration, a list of values, a table of values, or a data structure. While IFC defines several hundred property sets for specific types, custom property sets may be defined by application vendors or end users. IfcProduct is the base class for all physical objects and is subdivided into spatial elements, physical elements, structural analysis items, and other concepts. Products may have associated materials, shape representations, and placement in space. Spatial elements include IfcSite, IfcBuilding, IfcBuildingStorey, and IfcSpace. Physical building elements include IfcWall, IfcBeam, IfcDoor, IfcWindow, IfcStair, etc. Distribution elements ( HVAC , electrical , plumbing ) have

175-490: Is a CAD data exchange data schema intended for description of architectural, building and construction industry data. It is a platform-neutral, open data schema specification that is not controlled by a single vendor or group of vendors. It is an object-based data schema with a data model developed by buildingSMART (formerly the International Alliance for Interoperability, IAI) to facilitate interoperability in

200-485: Is a stub . You can help Misplaced Pages by expanding it . Tekla Tekla is a software product family that consists of programs for analysis and design, detailing and project communication. Tekla software is produced by Trimble , the publicly listed US-based technology company. Between 1966 and 2015 , Tekla Corporation was a software engineering company specialised in model-based software products for building, construction and infrastructure management. The company

225-788: Is an application for automating repetitive structural and civil calculations. The software is used in engineering for creating output such as calculations, sketches and notes. Tekla BIMsight is a software application for building information model-based construction project collaboration. It can import models from other BIM applications using the Industry Foundation Classes (IFC) format, also DWG and DGN. With Tekla BIMsight, users can perform spatial co-ordination (clash or conflict checking) to avoid design and constructability issues, and communicate with others in their construction project by sharing models and notes. Industry Foundation Classes The Industry Foundation Classes ( IFC )

250-488: Is automated. Along with the creation of CNC-files , files for controlling reinforcement bending machines, controlling precast concrete manufacturing, importing in PLM-systems etc. Tekla Structures is available in different configurations and localised environments to suit different segment- and culture-specific needs. Tekla Structural Designer is software for analysis and design concrete and steel buildings. Tekla Tedds

275-401: Is identified by IfcShapeRepresentation with a well-known name. Placement may indicate position, vertical angle, and horizontal angle. Quantities may be defined for take-off purposes such as Gross Area, Gross Volume, Gross Weight, Net Weight, etc. IFC defines various quantities specific to each element type and the method of calculation according to geometry and relationships. IfcProcess is

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300-806: Is most powerful at coordinating issues and presenting a user interface for the management and tracking of issues. Coordination software is typically a web-based service which allows for real-time coordination across multiple authoring software platforms and geographies. Most BIM software has a mix of these functions. The BCF is supported natively by authoring software such as Vectorworks , ArchiCAD , Tekla Structures , Quadri, DDS CAD , BIMcollab Zoom, BIMsight, Solibri, Navisworks , and Simplebim. Standalone BCF plugins include BCF Manager, and BCFier. Coordination software as cloud services offering BCF based issue tracking include BIMcollab, Newforma Konekt, Vrex, Catenda's Bimsync, Bricks app, ACCA software's usBIM.platform, and OpenProject . This technology-related article

325-433: Is not possible, files are slow to parse, and definitions are non-hierarchical. In addition to ifcXML and ifcZIP, modern data formats include RDF/XML or Turtle (using the ifcOWL ontology), ifcJSON ( JavaScript Object Notation , broadly available) and ifcHDF5 ( Hierarchical Data Format v5, binary). In 2020, buildingSmart had two JSON projects underway: ifcJSON v4 (a direct mapping from EXPRESS-based IFC v4) and ifcJSON v5, plus

350-568: The architecture , engineering and construction (AEC) industry, and is a commonly used collaboration format in Building information modeling (BIM) based projects. The IFC model specification is open and available. It is registered by ISO and is an official International Standard ISO 16739-1:2024. Because of its focus on interoperability the Danish government in 2010 made the use of IFC format(s) compulsory for publicly aided building projects. In 2017

375-630: The Finnish state-owned facility management company Senate Properties started to demand use of IFC compatible software and BIM in all their projects. Also the Norwegian Government, Health and Defense client organisations require use of IFC BIM in all projects as well as many municipalities, private clients, contractors and designers have integrated IFC BIM in their business. . The popularity of the IFC data schema in construction has continued to grow, primarily for

400-496: The IFC specification is now developed and maintained by buildingSMART . The following IFC Specification versions are available IFC defines multiple file formats that may be used, supporting various encodings of the same underlying data. IFC-SPF is in ASCII format which, while human-readable, suffers from common ASCII file issues, in that file-sizes are bloated, files must be read sequentially from start to finish, mid-file extraction

425-736: The Industry Alliance for Interoperability, the Alliance opened membership to all interested parties in September, 1995 and changed its name in 1997 to the International Alliance for Interoperability. The new Alliance was reconstituted as a non-profit industry-led organization, with the goal of publishing the Industry Foundation Class (IFC) as a neutral AEC product model responding to the AEC building lifecycle. A further name change occurred in 2005, and

450-555: The Open Source BIM collective. Research work has been done in Denmark looking into using the BCF for a broader range of information management and exchange in the architecture, engineering and construction (AEC) sector. There are two main categories of support for the BCF: authoring software and coordination software. Authoring software can generate and share BCF issues. Coordination software

475-479: The base class for processes and is subdivided into tasks, events, and procedures. Processes may have durations and be scheduled to occur at specific time periods. Processes may be sequenced such that a successor task may start after a predecessor task finishes, following the Critical Path Method . Processes may be nested into sub-processes for summary roll-up. Processes may be assigned to products indicating

500-401: The late 1960s. Tekla Structures is 3D building information modeling (BIM) software used in the building and construction industries for steel and concrete detailing, precast and cast in-situ . The software enables users to create and manage 3D structural models in concrete or steel, and guides them through the process from concept to fabrication. The process of shop drawing creation

525-456: The output produced by the work performed. IfcResource is the base class for resources and is subdivided into materials, labor, equipment, subcontracts, crews, and more. Resources may have various costs and calendars of availability. Resources may be nested into sub-resources for granular allocation. Resources may be assigned to processes indicating tasks performed on behalf of a resource. IfcProject encapsulates an overall project and indicates

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550-551: The project name, description, default units, currency, coordinate system, and other contextual information. A valid IFC file must always include exactly one IfcProject instance, from which all other objects relate directly or indirectly. A project may include multiple buildings, multiple participants, and/or multiple phases according to the particular use. In addition to project-specific information, an IfcProject may also reference external projects from which shared definitions may be imported such as product types. Each external project

575-402: The purpose of exchanging geometry. The IFC initiative began in 1994, when Autodesk formed an industry consortium to advise the company on the development of a set of C++ classes that could support integrated application development. Twelve US companies joined the consortium. These companies included AT&T, HOK Architects, Honeywell, Carrier, Tishman and Butler Manufacturing. Initially named

600-463: Was completed in February 2012. In November 2013, Trimble acquired CSC, a UK-based engineering software company and Tekla's former business partner. This added Fastrack, Orion, and Tedds to their software portfolio. In November 2013, CSC was formally merged with Tekla. In January 2016, Tekla Corporation as an organization changed its name to Trimble. Tekla engineering software has been around since

625-677: Was listed on the Helsinki Stock Exchange from May 2000 until February 2012. The name Tekla is a given name , used in the Nordic countries, in Poland and in Georgia. However, in this case it is an abbreviation of the Finnish words Teknillinen laskenta , which means technical computation. In May 2011, California-based business technology specialist Trimble Navigation announced a public tender offer to acquire Tekla for $ 450 million. The acquisition

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