This session explores the torsional provisions introduced in IS 1893 (Part 5) 2025 with a focused discussion on Clause 8.2.4.6. This webinar will explain the mechanics, interpretation, and practical implementation of torsional provisions. The discussion connects code formulas with physical behavior and design decisions.
Session Coverage:
• Interpretation of design eccentricity expressions and their application to flexible and rigid building edges
• Physical meaning of torsional flexibility and associated response parameters
• Rationale behind torsion amplification factor for Equivalent Static and Response Spectrum methods
• Step-by-step use of Table 8 for torsional classification
• Worked examples illustrating clause implementation
• Practical flowchart for applying Clause 8.2.4.6 in real projects
• Early thumb rules to detect torsional vulnerability at architectural planning stage
• Physical meaning of torsional flexibility and associated response parameters
• Rationale behind torsion amplification factor for Equivalent Static and Response Spectrum methods
• Step-by-step use of Table 8 for torsional classification
• Worked examples illustrating clause implementation
• Practical flowchart for applying Clause 8.2.4.6 in real projects
• Early thumb rules to detect torsional vulnerability at architectural planning stage
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