0 1 ▁Dim ension amento ▁de ▁est rut uras ▁de ▁a ço ▁constitu íd as ▁por ▁perf is ▁form ados ▁a ▁fri o ▁- ▁Pro ced imento ▁( C old - formed ▁steel ▁design ▁- ▁Pro cedure , ▁last ▁update ▁ 2 0 0 1 ) ▁and ▁N BR ▁ 6 3 5 5 : 2 0 0 3 ▁Per f is ▁est rut ur ais ▁de ▁a ço ▁form ados ▁a ▁fri o ▁- ▁Pad ron ização ▁( C old - formed ▁steel ▁struct ural ▁profiles , ▁last ▁update ▁ 2 0 0 3 ) ▁Building ▁Code : ▁AB NT ▁- ▁Ass ocia ção ▁Brasile ira ▁de ▁Norm as ▁T éc n icas ▁( www . ab nt . org . br ) ▁ ▁Chile ▁N CH ▁ 4 2 7 ▁- ▁susp ended ▁because ▁it ▁was ▁written ▁in ▁the ▁ 1 9 7 0 s . ▁Cold - formed ▁steel ▁sections ▁were ▁based ▁in ▁part ▁on ▁A IS I ▁( U . S ). ▁The ▁local ▁Institute ▁for ▁Building ▁code ▁IN N ▁has ▁specified ▁in ▁recent ▁C odes ▁for ▁se ism ic ▁design ▁that ▁design ers ▁must ▁use ▁the ▁last ▁edition ▁of ▁the ▁A IS I ▁Spec ification ▁for ▁cold ▁formed ▁steel ▁and ▁the ▁A IS C ▁for ▁hot ▁rolled , ▁in ▁their ▁original ▁versions ▁in ▁English ▁until ▁some ▁tradu ced ▁ad a ption ▁will ▁be ▁issued ▁here ▁. ▁ ▁Argentina ▁C IR SO C ▁ 3 0 3 ▁for ▁Light ▁Ste el ▁Struct ures ▁where ▁cold ▁formed ▁steel ▁is ▁included