What does BIM mean?
Like most industries, BIM represents a move towards greater digital innovation. The term "BIM" stands for "Building Information Modelling" or "Building Information Management". It represents a highly collaborative process allowing architects, engineers, property developers, contractors, manufacturers, and other construction experts to plan, design, and construct a structure or building within a single 3D model.
This also extends to the operation and management of buildings by using data accessible to building or structure owners. This data empowers governments, local authorities, and property managers to make well-informed decisions based on insights derived from the model—even after the building has been constructed.
BIM is an essential and sometimes compulsory process to ensure that building planning, design, and construction are carried out with maximum efficiency.
How does BIM work?
BIM software works by creating three-dimensional objects to form a building model that can be viewed from various angles and perspectives. The model is then infused with data detailing the geometry, materials, systems, and components of the building. The data can produce 2D drawings, analysis reports, schedules, and other documents.
The software provides the framework for applying intelligent insights to the physical aspects of a building, such as geometry, spatial relationships, geographic information, and properties of components. Architects and engineers can use these insights early in the design process to pre-empt potential issues and enhance the building’s performance.
This digital representation helps address the optimisation and performance challenges faced by everyone involved in the construction process and for all types of buildings: residential, industrial, commercial, infrastructure, engineering structures, and more. CIM is BIM applied to the scale of neighborhoods and cities.
What are the benefits of using BIM?
Some of the benefits of using BIM software include:
Enhanced collaboration: One of the benefits of using BIM is that it improves communication among all project team members. By creating a virtual model of the building, all stakeholders gain a clear understanding of the project requirements, helping to prevent misunderstandings and potential delays during construction.
Improved efficiency: BIM tools expedite the production of 2D drawings for designers. By generating plans, sections, and elevations directly from the 3D model, BIM tools can help to reduce the time designers spend on drawing preparations and streamline project workflows.
Better quality control: Engineers can use the virtual model of the structure to identify discrepancies between the in-place construction work and the 3D model. This helps to identify potential design or construction issues early, avoiding errors and defects in the finished product.
Cost savings: Teams can change designs before the project starts by recognising potential issues early in the design process. As a result, engineers can prevent costly mistakes, reduce waste, optimise resource use, and stop further delays during construction.
Faster project delivery: BIM tools can produce more accurate and effective planning and management of the construction process. This helps minimise delays and disruptions during construction, leading to quicker project completion.
More sustainability: The carbon footprint of a building can be minimised by using BIM to optimise the design for energy efficiency. BIM tools assist in evaluating a building's energy performance and identifying methods to reduce its environmental impact.
What are the applications of BIM?
-
- Construction planning:The ability to visualise the complete model of a project before construction starts reduces the risk of time-consuming and costly changes needed to rectify oversights or minor errors. This is particularly beneficial, as before BIM, any necessary rework meant completely redoing the design and project drawings from scratch whenever an issue arose. Now, workers can amend projects, make more informed decisions, and coordinate more effectively without needing to start afresh each time.
-
-
- Project management:Using three-dimensional digital technology, BIM integrates various disciplines through better communication, analyses project systems for constructability, and estimates the costs and duration of projects at any stage using quantity takeoffs. It also improves project visualisation and fosters collaborative teamwork. In addition, it provides strategies to resolve problems.
-
-
- Facility management:Applications of BIM in facility management include various strategic uses. Maintenance planning uses historical data and predictive analytics to schedule maintenance activities. Space allocation involves arranging office space according to real-time needs and organisational changes. With energy monitoring, BIM tracks and optimises energy consumption to improve sustainability and reduce costs. Safety planning uses the software to simulate emergency scenarios, helping to develop effective safety plans. BIM models are also instrumental in planning and visualising renovations or expansions, guaranteeing these processes are well-coordinated and effectively executed.
-
-
- Sustainability and compliance:BIM systems accurately calculate the quantity of material required, preventing over-ordering and reducing waste. Prefabricating fixtures offsite also boosts sustainability. Consequently, fewer deliveries to the construction site mean less waste to remove. BIM also helps monitor and optimise the energy performance of buildings, supporting sustainable facility management practices while making sure that designs and constructions comply with applicable building codes and regulations. It also facilitates the documentation required for compliance verification.
-
-
- International standards:ISO BIM standards provide a unified framework for the conception, design, construction, and maintenance processes within the sector, aiming to improve workflow efficiency. The key standard, ISO 19650, evolved from British standards and is designed to manage information throughout the entire lifecycle of a built facility using BIM. This standard ensures a collaborative management approach, improving the consistency and quality of information processes and promoting international standardisation of the BIM methodology.
-
Other terms of note in the BIM process
IFC: IFC, which stands for International Foundation Class, represents a neutral BIM file format that improves interoperability between different BIM software, allowing for collaboration within the industry. Unlike other formats, IFC files can be used across any BIM platform.
COBie: The Construction-Operations Building Information Exchange (COBie) standard specifies information for assets included as part of a construction project and is used to document data for the process.
LOD: Level of Development (LOD) provides a set of specifications that enables professionals in the field to document, articulate, and specify the content of BIM effectively and clearly. As an industry standard, LOD outlines the development stages of various systems within BIM.
