264 



BRIDGE ABUTMENTS AND PIERS. 



CHAP. VI. 



Cap A 



Cap 5 



CYLMDER PIERS 



MINIMUM DIAMETER OF 

 STEEL TUBULAR PIERS 

 FORA HE/GHT OF 15 FEET 

 TO CAKRYA SINGLE 5 PAH 



Increase diameter 5 "for each additional 5 feet in height- 



STEEL TUBULAR PIERS 

 AMERICAN BRIDGE COMPANY STANDARDS 



PIER BEAMS 



FOR VARIOUS PANEL LENGTHS 

 AND CLEARANCES BETWEEN BEAMS- 



PIER BRACING 



Supped Size, Wt-perft- 

 tidDi* and 

 tance Details I Rod 



25 



50' 



75' 



too 



125' 



1-KottO* 17%t- I7*ft> I7"/Ft- I7*/ft- !7*/Ft- 



Oet3ih,I-Rod 30 



Det3ik,l-Rod45 



5TRUTS:-Sizes deWts-per Ft- 

 For forious Roadways 



!7*/ft- !7*/fb //% //%- ffVfo 



I-MCS" tfVft- I9*/Ft- 



14'0 



16'0 



18'0 



17*/Fb !7*/Ft !9*/ft- /9*/ft- t?*/ft- 



20'0" 



FIG. 1 6. STEEL TUBULAR PIERS FOR HIGHWAY BRIDGES, 

 AMERICAN BRIDGE COMPANY. 



