Structural failures occur when a building or structure cannot support the loads placed upon it, leading to collapse or significant damage. This can happen due to various reasons, such as poor design, inadequate materials, or unexpected environmental conditions. For example, a bridge may fail if it is not designed to handle heavy traffic or if it is exposed to severe weather without proper reinforcement. These failures can have serious consequences, including loss of life and property. Engineers and architects must carefully consider factors like load-bearing capacity and safety codes to prevent such incidents. Regular inspections and maintenance are also crucial to ensure the longevity and safety of structures like skyscrapers and dams.