A course in structural drafting; . ?g Rivet. E 211 S*J Distance to l)e added to C. C. length c. WIDTHOFBAR FINISHED LENGTH « ORDERED LENGTH & WIDTHOF BAR DIAM. OF RIVET DIAM. OF RIVET 1 5 S 34 7S 1 .-Js 3-4 7 \\ 11- 21 n 11 li 2| 21 21 1; 2 2| 21- 2i Si 2 2\ 2| 3k 2^ 2i 2| 31- 31 31- 2i 21 3^ 31 21 Fig. 45—As reconiniended by Am. Bridge Co. Cohi?n7is and Lachig 49 being kept standard for all stories; ir-respective of the size or thickness ofZs required, but on account of the tie-plates required in either one or bothdirections increasing the shop costs, anddecreasing the efficiency of the colum
A course in structural drafting; . ?g Rivet. E 211 S*J Distance to l)e added to C. C. length c. WIDTHOFBAR FINISHED LENGTH « ORDERED LENGTH & WIDTHOF BAR DIAM. OF RIVET DIAM. OF RIVET 1 5 S 34 7S 1 .-Js 3-4 7 \\ 11- 21 n 11 li 2| 21 21 1; 2 2| 21- 2i Si 2 2\ 2| 3k 2^ 2i 2| 31- 31 31- 2i 21 3^ 31 21 Fig. 45—As reconiniended by Am. Bridge Co. Cohi?n7is and Lachig 49 being kept standard for all stories; ir-respective of the size or thickness ofZs required, but on account of the tie-plates required in either one or bothdirections increasing the shop costs, anddecreasing the efficiency of the columnunder eccentric loading, the form hasnever come into extensive use. Sec-tions 3 and 4 show heavy columns com-bining Zs with plates and 5 shows a combination ot twoZ-bars with one I-beam. The foregoing examples will serveto show the great number of forms of-fered the designer from which a se-lection may be made; nearly all of themare to be found in prominent examplesof building construction. The rela-tive advantages
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookidcourseinstructur00brow
