VyatSU Scientists Develop an Economical Mathematical Model to Prevent Progressive Collapse

Scientists at VyatSU have designed an innovative method aimed at protecting buildings from progressive collapse. This development relies on a mathematical model that predicts how steel-framed structures with hinged beam–column connections can be modernized to dramatically enhance their stability during unexpected damage. By modifying the structural nodes, the method transforms the building’s behavior so that when one element fails, the system shifts from working primarily in bending to operating in tension, thereby increasing its overall load-bearing capability.

The idea behind this approach is rooted in the observation that under extreme conditions, such as those arising from terrorist attacks, industrial accidents, transport collisions, or subsidence, conventional building designs are pushed beyond their intended limits. In such scenarios, damage to a single structural element can trigger a domino effect, rapidly leading to the collapse of the entire building. The VyatSU team’s model predicts this critical transformation, enabling engineers to prepare for and counteract progressive collapses more effectively.

Under normal circumstances, remedial measures involve reinforcing structures by increasing the rigidity and cross-sectional dimensions of beams and adding supplementary components. However, the new solution promises to be more economical by reducing the need for heavy additional materials and complex technological processes. By leveraging the inherent properties of materials under stress—where bending leads to localized tension and compression failure—the model ensures the structure remains cohesive and can sustain higher loads even after partial damage. Further studies are planned to refine this innovative solution before it is implemented in rebuilding efforts for industrial and public facilities.