DIGITAL ASSET DELIVERY
Augmented Reality Visualisation for Precast Element Installation and Inspection
How might we visualise the structural installation requirements of precast elements using Augmented Reality tools for better planning, coordination and execution?
Challenge Statement Owner
Background and Current Practice
Once precast elements, such as pillars, walls and slabs, have been constructed off-site, they are transported to the site and installed using cranes.
The precasters, site supervisors, and engineers currently rely heavily on verbal communication to plan and coordinate the installation, while referencing 3D or 2D drawings. There is still a disconnect between the digital drawings and the realities at the construction site. This could cause misalignment between the stakeholders which leads to incorrect installations and delays in the project.
Both installation and inspection of precast elements involve a lot of manual work. The installation team uses simple markings and manual measuring methods to determine the position and orientation of the precast elements before the elements (pillars, walls and slabs) are lifted in. After installation, the inspection process would once again require the tedious process of cross-referencing documents and drawings, and using manual measuring methods to audit the accuracy of the installations.
Opportunities and Key Challenges
For industrial projects, the number of precast pillars required for installation could amount to thousands. An Augmented Reality (AR) solution that could project the 3D models onto the construction site would help the different stakeholders better visualise the required layout for accurate execution of the precast element installation. Once the installation is done, the AR solution can help the inspector to visualise the installation requirements to verify the accuracy.
For the initial stage of development, our priority is to have the structural elements visualised. But the solution could further expand to mechanical and electrical systems.
The solution needs to be operable from a mobile device or tablet, and could be integrated into the existing Common Data Environment system that is currently used during the inspection process.
The AR solution assists the site stakeholders to visualise and compare the structural installation requirements in 3D. The solution supports better execution of precast element installation.