What is BIM?

Building Information Modeling (BIM) is a process that begins with the creation of an intelligent 3D model and enables document management, coordination, and simulation during the entire lifecycle of a project (plan, design, build, operation and maintenance).

What is BIM used for?

BIM is used to design and document building and infrastructure designs. Every detail of a building is modeled in BIM. The model can be used for analysis to explore design options and to create visualizations that help stakeholders understand what the building will look like before it’s built. The model is then used to generate the design documentation for construction.

What are BIM Dimensions – 3D, 4D, 5D, 6D, and 7D Explain?

A BIM model is more than a 3d model; it is a multi-dimensional model. Every time a specific type of information is specified into the model a different dimension is set. So, theoretically, there could be various dimensions…infinite dimensions. However, according to BIM fundamentals, there are seven recognized dimensions:
3D = Geometry. The third dimension of BIM gathers the graphical data. It is the most commonly known dimension, as it refers to the “visible” part of a BIM model. Linking different specific models into a federated model allows developing a clash-free project. Model walkthroughs, Clash Detection, Project visualization, Virtual mock-up models, prefabrication are among the outputs that a BIM model may provide.
4D = Time. The fourth dimension of BIM is used for construction site planning related activities. It is possible to visualize and control the progress of the activities through the lifetime of the project. Builders and manufacturers can optimize their activities: all the deliveries can be managed following the “just in time” approach, thereby reducing storage needs.
5D = Cost. This fifth dimension of BIM is used for budget tracking and cost analysis. Quantities may be extracted directly and instantly from the BIM model with a high accuracy level. By assigning a unit cost to the extracted quantities, we automatically obtain precise and reliable cost analysis. As a result, if the total cost does not reflect the client’s request, the designer may efficiently proceed with real-time amendments and change impact assessment.
6D = Sustainability. The sixth dimension of BIM is used for energy assessment during the design phase and operational phase. An efficient data collection from installed sensors enables to better understand the building’s performance and define a strategy aiming to optimize the building’s energy consumption.
7D = Facility Management. The seventh dimension is used to extract and collect relevant information related to the operation and maintenance status of the facility throughout its life cycle. 7D is the main field where the BIM model’s data can make a difference. Starting a Facility Management program based on reliable extracted information from an as-built BIM provides the most effective solutions for the management of a building. Considering the entire life cycle of a building, the operational phase absorbs up to 70% of the overall cost. In a BIM model each system, each terminal, each product is individually determined and its position is tracked in 3d; any product’s maintenance program is scheduled according to the manufacturer’s specification.

Level of Development vs. Level of Detail (LOD):

LOD is sometimes interpreted as Level of Detail rather than Level of Development. This Specification uses the concept of Level of Development. There are important differences. The level of Detail is essentially how much detail is included in the model element. Level of Development is the degree to which the element’s geometry and attached information have been thought through – the degree to which project team members may rely on the information when using the model. In essence, Level of Detail can be thought of as input to the element, while Level of Development is reliable output.

Fundamental LOD Definitions:

LOD 100 - Concept Design: The building 3D model is developed to represent the information on a basic level. Thereby, only conceptual model creation is possible in this stage. Parameters like area, height, volume, location, and orientation are defined.
LOD 200 - Schematic Design: General model where elements are modeled with approximate quantities, size, shape, location, and orientation. We can also attach non-geometric information to the model elements.
LOD 300 - Detailed Design: Accurate modeling and shop drawings where elements are defined with specific assemblies, precise quantity, size, shape, location, and orientation. Here too, we can attach non-geometric information to the model elements.
LOD 350 - Construction Documentation: It includes model detail and element that represent how building elements interface with various systems and other building elements with graphics and written definitions.
LOD 400 - Fabrication & Assembly: Model elements are modeled as specific assemblies, with complete fabrication, assembly, and detailed information in addition to precise quantity, size, shape, location, and orientation. Non- geometric information to the model elements can also be attached.
LOD 500 - As-Built: Elements are modeled as constructed assemblies for Maintenance and operations. In addition to actual and accurate in size, shape, location, quantity, and orientation, non-geometric information is attached to modeled elements.

What is Dynamo?

Dynamo is a visual programming tool that works with Revit. Dynamo extends the power of Revit by providing access to the Revit API (Application Programming Interface) in a more accessible manner. Rather than typing code, with Dynamo you create programs by manipulating graphic elements called “nodes”. It’s an approach to programming better suited for visually oriented types, like architects, designers, and engineers. There are a lot of benefits from using dynamo such as:
• Automate repetitive tasks.
• Access your building data.
• Explore multiple design options.
• Test Performance.
• Think Computationally.

WHAT IS CIVIL 3D?

The Civil 3D software is a solution that creates civil engineering design and documentation that supports Computer-Aided Design (CAD) and Building Information Modeling (BIM) workflows.
With the AutoCAD Civil 3D, it is easy to understand project operations, maintain relevance in processes and data, and gives a super-quick response to your changes.
Civil 3D is creative software used by Civil engineers and Architect professionals to plan, design, and manage civil engineering projects.

WHAT IS CIM? (CONSTRUCTION/CIVIL INFORMATION MODELING)

The concept of CIM (Construction/Civil Information Modeling) is becoming more apparent in the construction industry.
CIM enables Architects and Civil engineers to come together and work on a set of 3D models. In return, it creates an interactive project which collaboration real-time promotions. When Architects and Engineers work on Drafting/Designing, they get effective results on CIM.
Using CIM, any scale of projects can be constructed, and you can design as small as an individual building to a full-fledged town.
CIM can offer excellent results at a lower cost. This is what drives the change from traditional methods in the industry.

What is BIM EXECUTION PLAN?

The BIM Execution Plan (BEP) is an essential document, drafted to provide a reference framework to effectively conduct the building project and optimize the workflow.

What is Clash Detection?

A ‘clash’ is the result of two elements in the design taking up the same space. In Building Information Modeling (BIM), Clash Detection is the technique of identifying if -- and where or how -- two parts of the building (e.g., plumbing, walls, etc.) are interfering with one another.

THERE ARE 3 TYPES OF CLASHES:

1. Hard Clash:

This is when two objects are interfering with one another, such as plumbing running through a wall in the wrong way.

2. Soft Clash:

This is when an object does not have sufficient geometric tolerances in the design. For example, an HVAC system needs space to allow maintenance workers to operate in to service the system. If the building design lacks that space, it will see a soft clash.

3. Workflow Clash:

While not an object clash, in BIM a workflow clash results from inconsistent or conflicting building information. For example, an HVAC maintenance schedule that does not align with the scheduled delivery of spare parts.

Why BIM Coordination & Clash Detection Services Are Important?

BIM Coordination and Clash Detection Services are essential for designing a 3D Model through a process that ultimately helps to make the design more accurate, detailed and easier to read by the clients through a virtual representation of a model.