Building Information Modeling (BIM) generally offers the wider construction industry a wide number of productivity benefits including increased coordination, analysis, quantification, safety, sustainability and accuracy.
In 1910 Henry Laurence Gantt, an American mechanical engineer created, what is now known as the Gantt chart, to monitor construction progress over time. It was a popular technique for project scheduling but lacked the ability for users to visualize the steps and permutations of a construction timeline.
ever-increasing amount of global infrastructure, residential and commercial development projects, coupled with the growing complexity of construction projects and the increasing shortage of resources there is an expanding need for more sophisticated and sustainable tools and processes for construction management.
4D Building Information Modeling (4D BIM) is one such process. 4D BIM refers to the intelligent linking of a 3D digital model with time or schedule related information.
The tangible benefits of 4D BIM modeling
The tangible benefits of 4D BIM modelling giving enhanced productivity are :
The key benefit of 4D BIM Modeling is its contribution to project scheduling, facilitating a smoother process of it.
The intangible benefit of 4D BIM modelling
An intangible benefit is the use of 4D digital models for visualization and communication of project parameters, such as the project schedule, visually to construction clients and other stakeholders, including to the less technically minded.
4D BIM modelling visualization incorporates start and finish date data for the supply and installation of construction components and reveals the importance of them in relation to the overall project. It has removed the challenge associated with traditional scheduling of construction sequences of misunderstanding brought about by the lack of visualization.
This includes construction progress information which can be shown through project viewing, review and simulation tools.
4D BIM visualization also assists in resolving any conflicts between sub-contractors or areas of site congestion which could disrupt workflow prior to construction. It can also include access routes and temporary equipment, be used to plan material deliveries, coordinate material handling equipment and ensure their availability.
Objects in a digital model are linked to a CPM schedule in order to do this. This helps stakeholders understand
· firstly, the nature of the construction process
· secondly, the project at any construction stage
· thirdly, the appearance of a completed construction project
he construction process
Effective visualization of the construction process can therefore be provided for view activities in relation to their cost on a daily or weekly basis as needed.
Visualization of the project at any construction stage
By adding schedule dates to model components, a project team can improve the overall schedule and communicate this to all team members as needed at any point during a project. Over time, a schedule can be linked to a digital model to evaluate construction options.
Visualization of a completed construction project
Visualization of a completed construction project can be useful at any stage but particularly prior to construction to mitigate risk, whether from a health and safety perspective or from a time or cost perspective.
Global BIM services provider IndiaCADworks made this investigation on how 4D BIM modeling has a highly positive effect on construction projects.