Building Information Modeling (BIM) is the creation of parametric, or intelligent, 3D models instead of 2D perspective ‘un-intelligent’ drawings. A BIM operates on a digital database and any change made to this database is reflected throughout the entire drawing. This allows everyone involved in the building lifecycle – architects, engineers, contractors, developers, and building owners - to sync together allowing them to view the model in different ways and seamlessly share information
BIM’s produce construction documents that resemble those created by 2D CAD Drafting, but are done much faster and contain information about quantities, materials and other data that can be used in both the construction and management of a building.
We offer Building Information Modeling services creating parametric, sophisticated, intelligent models that expand communication to all members of the project.
About BIM Building Information Modeling(Informations are from http://en.wikipedia.org)
BIM stands for both Building Information Model and Building Information Modeling . The Building Information Model (BIM) is a set of information generated and maintained throughout the life cycle of a building. BIM is the process of generating and managing a building information model  . There are two theories on the origin of the term. The first one is that the term was coined by Autodesk  to describe " 3D , object-oriented , AEC -specific CAD ". The second theory claims that Professor Charles M. Eastman at Georgia Institute of Technology coined the term  . This theory is based on a view that the term Building Information Model is basically the same as Building Product Model , which Professor Eastman has used extensively in his book  and papers since the late 1970s. ('Product model' means 'data model' or 'information model' in engineering.) Nevertheless, it is agreed upon that the term was popularized by Jerry Laiserin  as a common name for a digital representation of the building process to facilitate exchange and interoperability of information in digital format.
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BIM covers geometry, spatial relationships, geographic information, quantities and properties of building components (for example manufacturers' details). BIM can be used to demonstrate the entire building life cycle including the processes of construction and facility operation. Quantities and shared properties of materials can easily be extracted. Scopes of work can be isolated and defined. Systems, assemblies, and sequences are able to be shown in a relative scale with the entire facility or group of facilities. BIM is able to achieve such improvements by modeling representations of the actual parts and pieces being used to build a building. This is a substantial shift from the traditional computer aided drafting method of drawing with vector file based lines that combine to represent objects. The interoperability requirements of construction documents include the drawings , procurement details, environmental conditions, submittal processes and other specifications for building quality. It is anticipated by proponents that BIM can be utilized to bridge the information loss associated with handing a project from design team, to construction team and to building owner/operator, by allowing each group to add to and reference back to all information they acquire during their period of contribution the BIM model. For example, a building owner may find evidence of a leak in his building. Rather than exploring the physical building, s/he may turn to his BIM and see that a water valve is located in the suspect location. S/he could also have in the model the specific valve size, manufacturer, part number, and any other information ever researched in the past, pending adequate computing power. The American Institute of Architects has further defined BIM as "a model-based technology linked with a database of project information"  , and this reflects the general reliance on database technology as the foundation. In the future, structured text documents such as specifications may be able to be searched and linked to regional, national, and international standards.
Anticipated Future Potential
BIM is currently employed by professionals on all building types from the simplest warehouse to many of the most complex new buildings, BIM design method is currently young in its development. BIM provides the potential for a virtual information model to be handed from Design Team ( architects , surveyors , consulting engineers , and others) to Contractor and Subcontractors and then to the Owner, each adding their own additional discipline-specific knowledge and tracking of changes to the single model. The result is anticipated to greatly reduce the information loss that occurs when a new team takes "ownership" of the project as well as in delivering extensive information to owners of complex structures far beyond that which they are currently accustomed to having. BIM can greatly decrease errors made by design team members and the construction team (Contractors and Subcontractors) by allowing the use of conflict detection where the computer actually informs team members about parts of the building in conflict or clashing, and through detailed computer visualization of each part in relation to the total building. As computers and software become more capable of handling more building information, this will become even more pronounced than it is in current design and construction projects. This error reduction is a great part of cost savings realized by all members of a project. Reduction in time required to complete construction directly contributes to the cost savings numbers as well.
gbXML is an emerging schema, a subset of the the Building Information Modeling efforts, focused on green building design and operation.
Building Information Modeling Software
- MagiCAD from Progman
- ArchiCAD from Graphisoft
- Bentley Architecture from Bentley Systems
- Building Explorer BIM Analysis (Estimating, Scheduling, Bidding)
- Constructor from Graphisoft
- Data Design System
- Digital Project from Gehry Technologies LLC.
- NavisWorks JetStream from Autodesk
- VectorWorks Architect (module of VectorWorks ) from Nemetschek N.A. (a subsidiary of Nemetschek AG)
- Tekla Structures from Tekla Corporation
- 1st Pricing BIM Plugin Real Time pricing and Supply
- SPIRIT from SOFTTECH GmbH
- StruCad from AceCad Software Inc.
- IFC Engine Series from TNO
- Revit from Autodesk
- Virtual Environment from Integrated Environmental Solutions
National Building Information Modeling Standard
The first National Standard for Building Information Modeling (NBIMS) is being written by National Institute of Building Sciences (NIBS). The standard will create a standardized method for the data to be formatted that will allow all the users of building information models to be able to easily utilize the information, establish minimum requirements that are implied when marketing BIM, as well as many other benefits to all.
The Associated General Contractors and contracting firms also have developed a variety of working definition of BIM which describe it generally as "an object-oriented building development tool that utilizes 5-D modeling concepts, information technology and software interoperability to design, construct and operate a building project, as well as communicate its details. Although the concept of BIM and relevant processes are being explored by contractors, architects and developers alike, the term itself is under debate  , and it is yet to be seen whether it will win over alternatives, which include:
- Virtual Building Environment (VBE)
- Virtual Building
- Integrated Practice
- Virtual Design and Construction (VDC)
- Improved visualization
- Improved productivity due to easy retrieval of information
- Increased coordination of construction documents
- Embedding and linking of vital information such as vendors for specific materials, location of details and quantities required for estimation and tendering
- Increased speed of delivery
- Reduced costs
In August 2004 the US National Institute of Standards and Technology ( NIST ) issued a report entitled "Cost Analysis of Inadequate Interoperability in the U.S. Capital Facilities Industry" ( NIST GCR 04-867 (PDF) , which came to the conclusion that, as a conservative estimate, $15.8 billion is lost annually by the U.S. capital facilities industry resulting from inadequate interoperability due to "the highly fragmented nature of the industry, the industry's continued paperbased business practices, a lack of standardization, and inconsistent technology adoption among stakeholders".
See alsoExternal links
- What is BIM? - by Professor Charles M. Eastman, Director of AEC Integration Lab at Georgia Tech.
- Managing BIM Technology in the Building Industry - AECbytes Viewpoint #35: February 12, 2008
- Virtual Build Team, LLC - BIM Services company and pioneers in the practical use of CATIA modeling software in BIM practice for the AEC industry.
- AECbytes - Analysis, Research and Reviews of AEC Technology
- Developing the US National BIM Standard - BuildingSMART (NIBS)
- CIS/2 - CIS/2 is the file exchange format that facilitates BIM for structural steel
- GSA National BIM Program - National 3D-4D BIM Program by the U.S. GSA ( General Services Administration )