Assessment Of Fire-induced Structural Behavior In A Single Bay Frame Using Multiple Codes

Abstract

Fire Hazards Pose A Significant Threat To Structures In India, Often Leading To Severe Damage And, In Some Cases, Structural Collapse Due To Elevated Temperatures. This Study Primarily Focuses On The Behavior Of Structural Members, Particularly Beams And Columns, Under Fire Conditions. While The Indian Standard (IS) Codes Provide A Standard Fire Curve For Heavy Steel Reinforcement, There Is Limited Guidance Available For Reinforced Concrete Members. To Address This Gap, Multiple International Codes Are Considered, Including IS Code, Eurocode, The National Building Code Of Canada, And The National Construction Code Of Australia. Based On These Codes, Structural Models Are Developed In SAP Software Using Relevant Parameters, With Uniform Temperature Conditions Applied Throughout The Structure. The Models Are Analyzed Iteratively To Assess Failure Conditions And To Refine The Design For Improved Safety. Subsequently, Selected Beam And Column Sections Are Subjected To Detailed Thermal Analysis Using SAFIR Software, Which Operates As A Module Within The GiD Environment. The Thermal Response Results Are Further Processed Using DIAMOND Software To Obtain Detailed Insights. Finally, A Comparative Evaluation Of The Single-bay Frame Under Different Code Provisions Is Presented Through Graphical Representations. The Study Highlights The Differences In Structural Response Based On Various Fire Curves And Design Standards.

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