10 



STEEL ROOF TRUSSES AND MILL BUILDINGS. CHAP. I. 



(3) 30FT-SPAN (b) 40 FT- SPAN 



(c) 50 FT- SPAN 



(d) 60 FT- SPAN 



(e) 80 FT SPAN 



(F) MODIFIED FINK 



(g) CAMBERED FINK 



FINK TRUSSES 



(h) HOWE 



(i) HYBRID 



(j) PRATT 



(k) MODIFIED PRATT 



W QUADRANGULAR (m) CAMEL BACK 



FIG. 5. TYPES OF ROOF TRUSSES. 



