Adaptive reuse of existing structures with 3D modelling and ETABS

by Mohamed Aly El-Safty Abdalla | May 7, 2026

In refurbishment projects, the real challenge is rarely the new structure, it’s understanding the limits of what already exists.

On a recent project, we were required to redistribute vertical loads away from a distressed façade system and redirect them into the main tower structure.

The catch? The receiving elements were already operating close to capacity.
This turned a seemingly straightforward modification into a high-risk structural problem, where any misjudgment could overstress critical members.

To manage this, we developed a detailed 3D model in ETABS, going beyond the final condition to simulate the full construction sequence. This allowed us to track how loads would transfer incrementally as connections were altered and strengthening works were introduced.

By understanding when and how forces moved through the structure—not just where—we were able to:
- Maintain structural integrity throughout construction
- Minimise temporary overstressing
- Provide a safe and practical methodology for execution

This project reinforced a key lesson:
Advanced modelling is not just about design verification, it’s a powerful tool for managing construction risk and unlocking value in existing assets.

If you’re interested in learning more, please reach out to the Ironbridge Engineering team.