BIM Dimensions#
BIM is a multidimensional approach to digital construction management that encompasses dimensions that refer to different aspects of a building model and how information is stored, managed, and visualized within the BIM software. The dimensions of BIM typically include:
3D - Virtual walkthrough and project visualization, clash detection, 3D electronic and prefabricated models of elements.#
Objects are modeled in 3D with embedded information for the project. In other words, the model is not just a 3D representation of objects, but it also provides all the necessary information for preparing project documentation. The model serves as a source of information for generating drawing documentation, reports, material combinations, etc. The modeled objects are parametric, and any changes in the model affect the generated drawings or reports.
4D - Construction planning and integration with the construction schedule.#
A 3D model with information about the time and sequence of installation for specific object elements. Construction, manufacturing, assembly and delivery time for construction can also be specified. Through the time-based information in the model, it is possible to create a simulation of the construction process.
5D - Quantity extraction for budgeting assistance and real-time cost estimates depending on workflow.#
A 3D BIM model with information about the installation time of specific elements and their cost. Based on this information, a cost analysis of the construction project is conducted.
6D - Energy analysis of building consumption and performance.#
A 3D model with additional information that analyzes the construction’s impact on the environment and people. This data can be used for energy analysis of installations and determination of the carbon footprint.
7D - Management of building operations and facilities.#
An expanded 3D model with the necessary information for the management and operation of the construction project. The model is often used as a basis for specialized Facility Management (FM) platforms and other concepts like the Internet of Things (IoT).
Attribution:#
This page is based on information from the IBIMD project of whihc DTU is a participant.