198 



STEEL RAILWAY BRIDGES. 



CHAP. IV. 



V5i 



<M 

 01 



^>! 



*! 



"ih.es 



T*-sT 

 ^J* 



vV>^ 



?! 



W&6**& 



2 Fillers 6"* 

 2L*6*4"x" 



Jj>jJ_c;fo_c-^ oF^Trusses^ 



SI 



IRe!nForcingPI-45xj' 

 this side 



-H- 

 I 



}$ i ?$pKcttyt&'*}* 



i it ' 2 IP 3~7 x3? * "g * shear 



* ?>" *' n" > *' n" < 

 4_-2>?_ i 4-0 : 4^0_ ' 



>7/4Z^ IHTBMED1ATE SECT/ON 

 [git 



Nofe:- 6"f6 turned bolfs af top of each 



Stringer connect/on- 



fffJs of f/o<?r beams to be Faced- 

 z"5faf?c/3rd F/oor Bo/fs, one fo every 



spf/'ce in guard timber- 

 's 5fc/-H0oA, one every third fie, fo 



each stringer- 



i *lO*-Boat Spikes, one to every fie 



except af gi/ffrcF f imber splic 



Cooper's -50 



HALF END ELEVATION 



Rivets to be j diameter- 



.NORTHERN PACIFIC RY- 



STANDARD PLAN 

 I 50 FT- THROUGH SPAN . 



KALPH MODJESKI, 



FIG. 45. SINGLE TRACK THROUGH PIN-CONNECTED RAILWAY BRIDGE. 



