A Study of the Behavior of Steel and Composite Structures under Fire Influence and Methods of Protecting Them

Abstract

This study highlights the behavior of structural steel under fire conditions, analyzing the impact of temperatures on its mechanical and thermal properties. The research found that elevated temperatures significantly reduce steel's strength and modulus of elasticity, leading to compromised load-bearing capacity and potential structural failure in severe fires. The results demonstrate that traditional protective measures, such as reflective coatings and insulation, effectively minimize damage and delay the loss of structural integrity. Modern solutions further enhance steel's fire resistance and improve its performance during emergencies. The study emphasizes risk management and the design of fire-resistant structures to ensure the safety of occupants and property. Based on experimental and numerical models, the finding recommend the development of integrated protective technologies that increase the steel's resilience to prolonged heat exposure, fostering sustainability and flexibility in structural applications.