Integration of the design and construction phase is a
realistic and obtainable goal with BIM software. This results in any errors or
foreseeable shortcomings being brought to light before and during the design
phase. A Design build project makes this early integration of BIM software
easier due to the general contractor being involved from beginning but projects
are not always design build.
BIM tools help construction in areas of estimation,
construction planning, fabrication and procurement. With the use of clash
detection, contractors are able to quickly identify where objects collide or do
not allow adequate access for insulation and maintenance. This feature is far
better and faster than overlaying the traditional drawings to determine where
design errors occur. The result of this clash detection should prevent most
design errors from carrying over to the construction phase.
The use of BIM provides a unique benefit for estimators
performing quantity takeoffs and cost estimates. Information for material and
component quantities can be quickly put into schedules and understood so proper
quantities are ordered. BIM lacks the capability to identify existing
conditions with the site or certain materials, which provides a more accurate
price due to the incorporation of location and demand.
Offsite fabrication is becoming more and more popular
because of costs and risks that arise with site fabrication. Contractors using
BIM to communicate to fabricators ultimately save time and reduce errors due to
the accuracy and universal language of BIM. As a result of the fabricators
being involved earlier in the construction process, more errors will inevitably
be caught or avoided.
BIM tools for construction offer a wide range of uses
throughout the entire project and can save time and money when implemented from
the beginning of the project. The ability to perform tasks in estimation,
construction planning, fabrication and procurement will only help its continued
raise in popularity.
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