3D Measurement in the Construction of Large Structures

Advantages of Using 3D Measurement Technologies in the Construction of Large and Complex Structures

Over the years, the demands of constructing large structures have become increasingly challenging for architects and engineers. Bold designs and the need for structural robustness have made conventional dimensional control methods nearly unfeasible for keeping up with these processes. However, with the advancement of three-dimensional measurement technologies, these challenges can now be overcome more efficiently and reliably.

This technology not only ensures accurate dimensional control, but also speeds up the assembly and alignment processes of structures — regardless of their shape or size — eliminating errors and rework that could delay projects and increase costs.

A clear example of how 3D metrology has revolutionized large-scale construction can be seen in projects like the Arena da Amazônia in Manaus and Maracanã Stadium in Rio de Janeiro. In these iconic structures, 3D technology, combined with the expertise of Tecnimex’s team of professionals, played a crucial role in ensuring that every component was positioned and assembled with absolute precision — resulting in robust, high-impact constructions.
The images captured during these projects illustrate the transformative impact of 3D metrology, not only in the assembly process but also in comprehensive quality control.

How Does 3D Metrology Work in Construction?

3D metrology is applied at various stages of the construction process, especially during the pre-assembly and assisted assembly phases. These stages are critical for ensuring that the final structure meets the safety, quality, and accuracy standards defined in the original design.

1. Component Inspection: Each individual component of the structure is thoroughly inspected using the 3D measurement system to verify that its dimensions fall within the specified tolerances. This step is essential to avoid failures during later assembly. Note: This inspection should preferably be conducted while the part or structure is still at the supplier’s facility.
2. Pre-assembly of Subassemblies: Before final assembly, subassemblies are positioned according to the 3D CAD model, without the need for printed 2D drawings. The measurement system ensures that each part is correctly aligned, reducing the need for manual adjustments later.
3. Final Assembly of Subassemblies: In the final assembly phase, the subassemblies are joined together to form the complete structure. The 3D measurement system ensures that each element is placed with precision, minimizing the risk of misalignments or structural errors.

This entire process takes place in a fully digital 3D environment, using advanced metrology software. Unlike traditional methods, which require the creation of 2D technical drawings, the project is built directly in the three-dimensional CAD model. This eliminates the need for dimension conversions and manual adjustments, making the process significantly faster and more accurate.

Advantages of 3D Metrology

The use of 3D measurement technologies offers several benefits for the construction of large-scale structures:

• Superior Accuracy: 3D technology enables precise analysis and control of component dimensions, ensuring that all structural elements are assembled exactly according to the original project.
• Reduced Rework: With detailed dimensional control at every stage of assembly, the need for post-assembly adjustments or corrections is minimized — saving both time and resources.
• Greater Efficiency: Performing measurements and adjustments directly within the 3D environment streamlines the project timeline by eliminating intermediate steps that traditionally consume time and increase the likelihood of errors.

Real Success Stories: Arena da Amazônia and Maracanã Stadium

The application of 3D metrology was a decisive factor in the construction projects of Arena da Amazônia and Maracanã Stadium. Both stadiums are engineering landmarks, and the precision enabled by 3D technology was essential for their success.

The architectural complexity of these projects required complete control over each step — from the manufacturing of components to their on-site assembly. Without 3D technology, it would have been impossible to achieve the level of accuracy and speed required to complete these builds on time and with the desired quality.

Want to know more about this milestone in our history?

 Read the full case on our website!

Unlock the Potential of 3D Technologies for Your Project

If you’re involved in large-scale projects and are looking for solutions that offer accuracy and efficiency at every step, 3D measurement technologies are essential.

At Tecnimex Group, we offer advanced 3D metrology systems designed to provide full control over the construction process of large and complex structures.