Overview
Clash Detection is the core of a BIM Modelling Process that helps in effective recognition, examine and reporting interferences in a project model. It occurs when there is a different model in BIM Modelling combined to form a complete structure. Models are created from all the disciplines such as architectural model, structural model and so on. Identifying clashes are vital for the construction industry as it directly impacts the process by causing delays, design fluctuations, and material costs.
In the old days, clashes were detected on the construction site which incurred huge expenses and costly delays. In BIM Modelling, clash detection occurs during the design phase resolving the constructed issues before construction starts that result in saving costs, time and better building. To work upon clashes, first, every detailed dimension must be read carefully to propose any changes. Secondly clash reports need to be generated using Revit and Navisworks software.
Types of Clash Detection
Hard Clash: – It occurs when two objects coordinate with each other. For instance, a beam and AC duct cannot be placed at the same place if occurred in the design phase that can be resolved by structural and MEP engineers. BIM delivers a solution to such clashes through the information of 3D building design models. If these clashes are detected on-site, it can turn to be time-consuming and costly.
Soft Clash: – It refers to moderation having objects within their zone for access, insulations or safety. BIM goes to the extent of allowing designers to comply with building codes through soft clash detection. BIM checks for such clashes and makes design comply with codes.
4D/Workflow Clash: – BIM Modelling enables to resolve scheduling clashes for work crews, materials fabrication and deliver clashes and project timeline issues. Works from different construction disciplines are managed on-site without duplication of activities. Information to onsite clearance is enhanced that helps in building operation to facilitate smooth functionality.
Benefits
Clash Detection helps to reduce project errors in completed model work before construction takes place. It is vital to acknowledge and indicate conflicts that occur in BIM while working with multidisciplinary models that are clubbed into one composite model. Automated clash detection not just reduces the manual time to check models but it lowers the overall construction costs which prevent from unnecessary delays to the fabrication process and minimize price.
It integrates several discipline models into one model through BIM Software. Clash detection through BIM can be useful in the situation of objects laid on another object. BIM allows coordination to be done easily and attain the utmost accuracy as it’s a collaborative process.
Challenges
Software that is used to detect clashes work on a separate process on the basis to the core modelling and delivers clashes. Identifying clashes is a time-consuming process and solving these errors takes the enormous cost. Clash detection is not an easy process; it requires efforts to analyze clash and offer a design solution with standards.
Conclusion
Clash Detection is equally essential in BIM Coordination Process as it helps to identify clashes before the construction works begin and can be resolved in the design phase. If BIM software was not implemented clash detected could have been time-consuming, and after construction, the clashes would have detected which requires a lot of rework and other resources making it costly process.