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IS 12843:1989
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Clauses
IS 12843:1989 — Clause Reference
4 detailed clauses with interactive calculators, reference tables, and practical notes.
Cl. 1
Scope — Erection Tolerances vs Fabrication Tolerances
IS 12843 specifies the permissible deviations of a steel structure as ERECTED — column plumb/verticality, levels, alignm…
Cl. 4
Plumb / Verticality of Columns
IS 12843 limits how far an erected column may deviate from vertical — both per storey and cumulatively over the full hei…
Cl. 5
Level, Alignment & Member Position
IS 12843 limits deviations in the level (elevation), line/alignment and lateral position of erected members and the over…
Cl. 7
Survey, Acceptance & Out-of-Tolerance Action
Acceptance under IS 12843 is by survey: the erected structure's plumb, level and alignment are measured and compared to …
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