BIM WELL more Than a Simple Extension of The 3D CAD

In the AEC industry, the advent of building information modeling (BIM) concept was considered by many as a move towards better design of 3D technology computer aided (CAD) and 2D. Very few have seen as an interdisciplinary, collaborative tool that will change the workflow of the design-build project, the structure of AEC companies, models of training teams, management distribution models, and the role key disciplines involved.

Unlike vertical communication channels and delivery methods required by approaches using mainly CAD traditional design-build, BIM requires an open horizontal collaboration channel and integrated between all project stakeholders: the owners of the premises, designers / architects MEP (M & E) engineers, consultants and contractors. To realize the benefits of BIM outsourcing compared to 3D CAD modeling tools, companies need to invest significantly in the knowledge / skills development, training of personnel, restructuring management and software tools. However, as these tangible investments, AEC firms need a complete change of mindset if they want to adopt BIM for their projects.

It is a much broader concept that involves a preconstruction planning and multidisciplinary coordination for the construction of facilities virtually model using embedded intelligent parametric objects with precise information rich. This intelligent model can then be used by all stakeholders to take their views and relevant information leading to the capture of timely decision and delivery of the project.

In the traditional 3D CAD, depending on the scope of the project, the architects prepare a set of construction drawings, including plans, sections and elevations. It is prepared in the design and planning phase using the details of all key stakeholders, including designers, engineers, contractors and subcontractors MEP. Since a single database model is focused on the details required for all disciplines, all changes made by one of the team members are automatically updated throughout the model plans, sections and elevations. Thus, all members of the project team are updated on any changes made by other saving time, reducing the cost of duplication and increasing the overall quality of construction drawings sets. So make small changes in the architectural plan would result in these changes appear simultaneously in the section, elevation, or schedule for the same change of plan.

In addition, 3D CAD model building are blocks of lines, circles, arcs, and other graphical entities that do not have the flexibility analysis of data. These models are only geometric objects without detailed settings that are required throughout the supply chain of the ACS. However, BIM models include building components and smart systems, including columns, beams and walls, which contain data for rich settings. Carefully planned and implemented a model of BIM is not only essential in retail construction; valuable information on the spatial coordination, geographic location, statements of quantities, material requirements, schedule and project costs can be retrieved when needed.
In essence, a well planned BIM model accurately represents the entire life cycle of the project design. Although the preparation and implementation of BIM strategies requires a considerable investment of time, money and effort, the benefits are multiple and long term. With BIM modeling can not only help in the design and efficient construction, but also provides prefabrication and benefits of facilities management.