General Construction in Steel — Code of Practice
Third Revision (Limit State Method) · Last reviewed 2024-11
Covers design, fabrication, and erection of steel structures using the Limit State Design approach. Supersedes the Working Stress Method edition.
Key clauses — Rebota's plain-English summary
Paraphrased for working engineers, not a verbatim reproduction of the standard. For compliance documentation, tender submissions, or any use requiring the exact clause text, refer to the official IS 800:2007 document published by the Bureau of Indian Standards (BIS) — this summary is an interpretation aid, not a substitute for it.
- Design philosophy: Limit State Method (LSM) — factored loads, characteristic strengths
- Partial safety factors: γf0 = 1.5 for DL+LL; γm0 = 1.10 for yield; γm1 = 1.25 for ultimate
- Tension member: Tdg = Ag·fy / γm0; Tdn = 0.9·Anet·fu / γm1
- Compression member: Pd = Ae·fcd (design compressive strength per buckling curve)
- Weld effective throat = 0.7 × weld size for fillet welds
