Illinois Society of Architects · Chicago · leaf 212
here adjoining fioors areof concrete construction, sill plates may beomitted. (k) Rolling steel doors used as dividingwall doors shall be made eitlier of woodenslats covered with steel or bronze, or ofnumber 20 U. S. gauge painted steel, or ofnumber 24 U. S. gauge galvanized steel.The edges of such… … Section 559j.Fig. 32. (II) ^ inch iron or steel sill. (F) :{ X Ti X % L riveted to iron sill. (G) % inch bolt IS o. c. Exception: Sill plates may be omitted where Hoorsare of concrete construction. number 12 U. S. gauge steel, which shall Dereinforced around the edges by one and one-half inch…
Architecture · Building · Architects
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