CLASH DETECTION
CLASH MATRIX
A Clash matrix is a document representing the clashes among the services, utilities and component pre-defined. The elements are first defined in the first horizontal row and vertical columns, in a way that they are arranged in the same order to coincide in one corresponding cell.
Once we have the Clash detection report, we then put the values in the corresponding coinciding cells of the number of clashes experienced among both the components.
For example, the Clash Matrix for an Infrastructure project can be prepared in the following type:
1. Utility to Utility
2. Roads to Utility
CLASH REPORTS
Clash detection allows for the effective identification, inspection and reporting of interferences in a 3D project model . The report which is generated to describe those clashes in detail is called Clash report . This helps in identifying the position and elements involved in the clashes experienced in the model.
An initial clash detection process is carried out once the LOD 300 model is prepared corresponding to the IFC inputs received, and the model is then coordinated based on the RFI’s raised and resolved with the help of the Clash report generated.
Clash Detection is a continuous process which is carried out throughout the project execution phase. The constant inevitable changes in design demands the Clash reports to be generated and resolved on a periodic basis.
A Clash detection Comprehensive document would be prepared stating the procedure and strategy for clash detection and would also contain the clash reports and the number and description of clashes in a chronological manner . These reports serve as an important medium of communication amongst the project team for execution of hassle free project.
RFI MANAGEMENT
Often in construction projects, a lack of understanding in design as well as a lack of close coordination between project teams cause inconsistencies. These are presented in the form of RFIs (Requests for information) which end up in costing the project stakeholders more time and money than the initial planned budgets.
By simulating building construction just as it would take place on the site, we would provide valuable insight into the constructability of your project. Our multi-disciplinary team raises red flags to all the relevant project partners well before time, allowing you to improve your performance and predictability of construction. The cloud based systems being used to manage RFIs ensures a clear flow of information and quick resolution of issues.
Some of the systems that we recommend are open BIM platforms like BCFier as well as advanced platforms like Aconex and BIM 360 for more complex projects.
CONSTRUCTABILITY ISSUES
At times, Clash Detection and Coordination are simply not enough to prevent the hassles on site. It needs a more sophisticated engineering approach to report certain kinds of issues which might cause problems on the construction site even if it does not clash with any other element. Our team of Architects and Engineers makes the discovery of such issues possible with sheer practical experience of the actual construction procedure. This is where we get an extra edge over the mere draughtsman and adds value to the BIM software skills in terms of real construction engineering.
As you may see in the above example of one of our projects, the structural opening for the skylight was experienced to be 30% larger than the actual facade skylight which was supposed to get installed. Also, the picture on the right in the above image represents an example where the duct does not clash with any component. But when modelled according to the elevation mentioned in the design drawings, the duct seemed to be running below the false ceiling which is would have been a major blunder had the drawings reached the construction site without the BIM modelling process.
Such problems are raised in the form of invaluable RFI’s and are solved before the design goes on-site, making the entire construction process through BIM more efficient and time-saving, the way it’s supposed to be!
