Post-fire Safety Identification of Steel Structure Factory
The mechanical properties and bearing capacity of steel structures will be weakened after a fire.Post-fire safety identification,repair and reinforcement of components and connecting nodes are required to reduce indirect economic losses after a fire.Based on an example of a post-fire steel structure factory,the post-fire detection and identification process of steel structures is introduced.Through on-site detection of damage and deformation of steel columns,steel beams and other components as well as node connection structural measures,the mechanical properties and residual bearing capacity of steel structure factory components and connection nodes after a fire were analyzed.A practical calculation method for the remaining bearing capacity of bolts was proposed based on the specifications,and the research direction of post-fire detection of steel structures is prospected.
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