BIM Knowledge by Raveen R

BIM D's (dimensions) ?  – 2D, 3D, 4D, 5D, 6D, 7D, 8D. 2D BIM  – 2D drawings (with x & y axis) & documentation, views, plans, etc. 3D BIM  – shared information model used for visualization purposes, coordination, etc. 4D BIM -  (4D = 3D + TIME SCHEDULE) adds an extra dimension of information to a project information model in the form of scheduling data. 5D BIM -  (5D = 3D + TIME SCHEDULE + COST) assemblies with time schedule constraints and then with cost-related information. 6D BIM -  (6D = 3D + TIME SCHEDULE + COST + MAINTENANCE) assemblies with all aspects of project life-cycle management information. 7D BIM -  (7D = 3D + TIME SCHEDULE + COST + MAINTENANCE + SUSTAINABILITY) optimizes asset management from design to demolition. 8D BIM  - (8D = 3D + TIME SCHEDULE + COST + MAINTENANCE + SUSTAINABILITY + PREVENTION) for accident prevention through Design.

  What is  COBie  ? COBie -  Construction Operations Building Information Exchange. COBie  is an international standard for building data exchange & most common use is in product data handover from construction to operations. The most common representation of  COBie  is the COBie spreadsheet . The idea behind  COBie  is that the key information is all pulled into one format and shared between the construction team at defined stages in a project. COBie  helps organizations to electronically capture and record important project data at the point of origin, including equipment lists, product data sheets, warranties, spare parts lists, and preventive maintenance schedules. This information is essential to support operations, maintenance and asset management once the built asset is in service. Replacing reliance on uncoordinated, often paper-based, handover information typically created by people who did not participate in the project and delivered many months after the client has take

 What is BIM ? BIM is a process that with the correct implementation, will make life easier for everyone involved in projects. It is a way for your business to reduce risk, cost, time, waste and energy from your project. Instantaneous modification & less time consumption, in  Revit  compared to  AutoCAD . Top Benefits:- Improved Coordination and Clash Detection Model-Based Cost Estimation Resolve conflicts before they happen Increased Productivity and Prefabrication Access it anywhere Save time and effort Make perfect presentations Improved Scheduling/Sequencing Better Collaboration and Communication Preconstruction Project Visualization

  What is  Dynamo   ?  Why should we  Learn  ? Dynamo  is an open source graphical programming environment for design (a Visual Programming Language ). It is a visual scripting tool and gives its users the capability to automate a chain of commands that might otherwise be extremely time consuming. These scripts can aid in anything from automating repetitive tasks, managing data, or generating complex geometry in Revit . Dynamo is connected to Revi t in a way that if the user changes something in Revit, it changes in Dynamo too and vice versa. With Dynamo , the user can create shapes for a construction that would require much longer time with Revit only. For eg :- Dynamo   can create dozens of sheets in seconds, rather creating sheets in Revit individually. It can read Excel spreadsheets & map sheet numbers paired with sheet names into Sheets within a Revit project .

What is the use of  AR ,  VR ,  MR  &  in  BIM  ? VR  -  Virtual Reality Involves virtual environments which are digital with a complete cut from the physical environment. Uses head-mounted display or glasses. AR  -  Augmented Reality Involves real environments with the addition of digital elements, the live view can be captured using camera & digital elements will be added on top of the live view. Uses a smartphone, tablet or other mobile device. MR  -  Mixed Reality Involves a mix of aspects from both virtual & real environments with the involvement of digital elements, the virtual objects can be mapped to the physical environment.

  What is  Asset Management  ?  Asset management is defined as the coordinated activity of an organization to realize value from assets. The availability of appropriate and reliable information about assets is vital for effective asset management as it supports decision making, planning and execution of activities on assets. By providing a structured framework for the creation, collation and exchange of information about assets, BIM supports effective asset management. Thus, BIM must provide information covering the whole life cycle of assets. Benefits of  BIM  in  Asset Management  are :- Reduced project start-up costs. Reduced construction and operational costs. Better life cycle management. Reduced management process costs. Greater clarity on long-term in-service performance expectations and the consequences of design-stage decisions over life cycle performance and cost.

What is a  CDE  (Common Data Environment)   ? Common Data Environment ( CDE ) is the single source of information for the project, used to collect, manage and share model, non-graphical data and all documentation amongst all project team members, facilitating collaboration and avoiding duplication and errors. An application, generally available in the cloud , accessible from any device from which it is possible to manage in a structured and unique way. A real-time, single database which is always available and up to date. The main areas covered by a CDE are: Document Management ; Task Management and Asset Management. Top   5 Common Data Environments (CDE) for BIM are :- Autodesk BIM 360 Trimble Connect Bentley Projectwise Procore Allplan Bimplus

  What is  BIM Levels  ? Level  0 BIM - CAD Project promotes zero collaboration and makes use of paper-based 2D CAD drafting techniques. Mainly utilized for Production Information. Level  1 BIM - 2D & 3D 3D CAD is used for conceptual works, 2D is used for the generation of statutory approval documentation and Production Information. Data sharing happens electronically using a common data environment (CDE) managed by the contractor. Level  2 BIM - 4D & 5D This level promotes collaborative working by giving each of the stakeholders its own 3D CAD model An information exchange process which is specific to that project and coordinated between various systems and project participants. Level 2 BIM is prescribed by the UK Government for public sector projects. Level  3 BIM - 6D Level 3 has not yet been fully defined, however the vision for this is outlined in the UK Government's Level 3 Strategic Plan. Level 3 concept enables all the participants to work on the same model simulta

  What is Industry Foundation Classes ( IFC ) ? IFC  data model is intended to describe architectural, building and construction industry data. It is an open,  international  standard (ISO 16739-1:2018). It is a platform neutral, open file format specification that is not controlled by a single vendor or group of vendors. IFC  as the  PDF  of  BIM . Like PDF, an IFC file is a “frozen copy of the original content.” IFC  defines multiple  File Formats  that may be used :- IFC -SPF (.ifc) is a text format defined by ISO 10303-21, most widely used IFC format, having the advantage of compact size yet readable text. IFC -XML (.ifcXML) is an XML format defined by ISO 10303-28, suitable for interoperability with XML tools and exchanging partial building models. Due to the large size of typical building models, this format is less common in practice. IFC -ZIP (.ifcZIP) is a ZIP compressed format consisting of an embedded IFC-SPF file or IFC-XML file.

  What are  EIR 's ? The  Employer's Information Requirements  (EIR)  is an important element of a Project  BIM  Implementation and is used to set out clearly to the Project Team or Supplier what information is required generally and at each project stage. It establishes the BIM framework for a project so that everyone involved understands their own and others information responsibilities.  Benefits of developing an EIR  :- Handover Data  - Obtain the structured asset data that you require in the format. Collaborate  - Establish the project teams, the project meetings and the information required to make the meetings effective. Compliance  - EIR is a Level 2 mandatory requirement. Communicate  - Detail how information and documents will be named, where and when they will be stored and shared. Efficiency  - Focus your design team on the critical work. Checks  - Check that the design is meeting your brief.  Quality  - Obtain model quality reports to catalogue errors and u

  What is  BIM   Level 2   ? image source :   BIM 101 – BIM Levels Explained | Interscale Level  2 involves developing building information in a collaborative 3D environment with data attached, but created in separate discipline models. The key elements contained in  BIM   Level 2  cover the creation of a federated model, the common classification of data, collaborative working, employer’s information requirement, information exchange methods and individually authored models.  There are certain standards that you will have to meet, in order to achieve BIM Compliance , following are :- Pre-construction Stage :  Follow the BIM Protocol Create A Project Plan Design to Construction Stage : Share Data Securely A Common Language Ensure You Use COBie The Handover Stage : Pass On Information A Smooth Handover "While BIM Level 2 is a step in the right direction, there's still a lot more to come from BIM ."

  What is  BIM   Level 3  ? Level 3 proposes the use of an integrated solution built around open standards like  IFC  where a single server stores all the project data.  One of the main requirements for  BIM  Level 3 is the availability (and implementation) of an  international  set of  standards . Another key requirement to deliver  BIM  Level 3 projects is the use of IFC models . Its aim is to describe  Architectural ,  Engineering  and  Construction  data in a common format. It is an open file format specification that is not controlled by a single vendor.  BIM   Level 2   was about processes, whilst  BIM   Level 3  requires fundamental changes in the way we communicate at work. Proper implementation and adoption of Level 3 require :- Development of a fresh ‘Open Data’ standard that facilitates the sharing of project data around the globe. Creation of new contractual frameworks for BIM-based projects for promoting collaboration and ensuring consistency. Training clients in th

What is a  BIM  Execution Plan ( BEP )  ? A  BEP  is defined as a plan prepared by the  suppliers  to explain how the information modelling aspects of a  project  will be carried out. A  BEP  is a comprehensive document that helps the project team recognize and execute the role  BIM  plays in the various stages of construction management.  The execution plans encourage immediate communication among the various teams at the start of the construction project. The biggest challenge in any construction project is a tight schedule in  time . With a well-formed  BEP  focused on the project benefits, nobody is going to be stuck with scrutinized details, which very often cause considerable delays to project deliverables. One of the main benefits of   BEP  are as follows :- All parties will clearly understand and communicate the strategic goals for implementing  BIM  on the  project . Organizations  will understand their roles and responsibilities in the implementation. The team will be able to

  What is  4D   BIM  ? 4D BIM  adds an extra dimension of information to a project information model in the form of scheduling data. This data is added to components which will build in detail as the project progresses. This  information  can be used to obtain accurate program information and visualizations showing how your project will develop sequentially. Planners  can quickly develop accurate program's based on one reliable source of federated information. Data linked to the graphical representation of components, it becomes easy to understand and query project information. Also possible to show how construction will develop, sequentially, over time showing how a structure will visually appear at each stage. Such an approach helps to negate last minute on-site design co-ordination and rework, ultimately eliminating waste from the delivery process and helping to speed it up.