52 STANDARD SPECIFICATIONS 



wise defective rivets shall be cut out and replaced. In cutting 

 out rivets great care shall be taken not to injure the adjacent 

 metal. If necessary they shall be drilled out. 



220. Assembling. Riveted, members shall have all parts well 

 pinned up and firmly drawn together with bolts before riveting 

 is commenced. Contact surfaces to be painted. (Par. 250.) 



221. Web Plates. In buildings web plates of girders shall 

 not be recessed from the backs of angles more than J in. 



In bridges web plates of girders which have no cover plates 

 shall be flush with the backs of angles or shall, in the top chord, 

 project above the same not mqre than J in. unless otherwise 

 called for. 



When web plates are spliced not more than J in. clearance 

 between ends of plates will be allowed. 



222. Splice Plates and Fillers. Web splice plates and fillers 

 under stiffeners shall be cut to fit within J in. of flange 

 angles. 



223. Web Stiffeners. Stiffeners shall fit neatly between 

 flanges of girders. Where tight fits are called for the ends of 

 stiffeners shall be faced and shall be brought to a true contact 

 bearing with the flange angles. 



224. Eye-Bars. Eye-bars shall be straight and true to size 

 and shall be free from twists, folds in the neck or head, or any 

 other defect. 



Heads shall be made by upsetting, rolling, or forging. Welding 

 will not be allowed. The form of heads will be determined by 

 the dies in use at the works where the eye-bars are made, if 

 satisfactory to the engineer, but the manufacturer shall guarantee 

 the bars to break in the body when tested to rupture. The 

 thickness of head and neck shall not vary more than ^ in. 

 from that specified. (Par. 248.) 



225. Boring Eye-Bars. Before boring each eye-bar shall 

 be properly annealed and carefully straightened. Pin holes 

 shall be in the center line of bars and in the center of heads. 

 Bars of the same length shall be bored so accurately that, when 

 placed together, pins $2 m - smaller in diameter 'than the pin 

 holes can be passed through the holes at both ends of the bars 

 at the same time without forcing. 



226. Pin Holes. Pin-holes shall be bored true to gauges, 

 smooth and straight; at right angles to the axis of the member 



