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Co-ordinated BIM Models using Clash Detection

Clash detection is a significant and indispensable element of the BIM modeling

technique. Clash detection takes place out of the fact that in BIM modeling, there

exists not only a single model but multiple models which are ultimately integrated

into a composite model. Models are created in various domains such as

Architectural, Structural and MEP independently as per the architects’ original

model. The next step after the creation of individual models is clash detection.

Clash Detection is the technique of identifying the location wherein the models

clash i.e. the location where components of individual models occupy the exactly

the same place, or with parameters which are not compatible. In 4D BIM modeling

clash takes place wherein a time sequence is synchronized. Identifying these kinds

of inconsistencies is crucial, because they significantly affect the construction

process, causing delays, design alterations, cost estimation and a cascade of

complications and budget overruns.

Clash Detection is the method of analyzing and figuring out the various

interferences which generally comes up in coordinating procedure of 3D models

developed using advanced software's such as Revit Structural & Revit MEP. 3D

models generating using Revit Structural incorporates components such as beams,

columns, roof, windows, etc whereas 3D models generating in Revit MEP

incorporates mechanical, electrical and plumbing services. These models

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developed in Revit may be incorporated in BIM because these kinds of models

possesses adequate information in addition to high level of detailing making

further task for construction hassle-free. Clash detection concept facilitates

analyzing and tracking of clashes or interferences in 3D models among various

components. Clash Detection is required when virtual 3D models are actually put

into construction as well as installation stage. In construction stage all 3D models

of structural and MEP services are co-ordinated within a single model. During this

period coordinated models shows interferences and clashes and to identify them

clash detection is carried out.

Revit MEP is software that provides design along with high-end construction

documents for mechanical, electrical and plumbing fields. The 3D models

generated in Revit MEP could be easily coordinated with models generated in

Revit architecture or structural. By coordinating such models facilitates engineers

and architects to reduce co-ordination errors as well as design issues.

MEP Clash detection becomes necessary when models with mechanical services

such as HVAC model, electrical 3D model and 3D plumbing models are

synchronized within a model. The software employed in order to coordinate

models offers an added advantage of 4D technology. Incorporating time feature to

3D models leads to 4D BIM models. Standard example of clash is when ducts of

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mechanical HVAC model interfere with the cable of electrical model. Such

interferences lead to severe complications during actual installation process.

Therefore clash detection aids in reducing human errors and leads to optimum

quality of models. After clash detection procedure these models are ready to head

over to sites for actual installation. Thus, Clash Detection enables to create BIM

Co-ordinated Models with accuracy.

Various benefits of Clash Detection are listed below:

Aids in minimizing co-ordination errors and difference of viewpoint

between individuals of various domains.

Probably the greatest benefit of clash detection is that it eliminates several

design combats thus generating error-free projects.

Assists in minimizing overall project cost at the time of installation and

construction phase.

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Contact Us

Australia Office

Tesla CAD & IT Solutions,

17 Tinks Road,

Narre Warren

3805

Melbourne, Victoria

Telephone :( 03)87863814

Mobile: 04 3174 5425

projects@teslacad.com.au