75 



Strip Footings 



— J J 



1/I >j f^-Unit Lg f 



— hT 



L > 5B 



Cross Strip Footing 



IT 



Use for sand and clay. 

 "Double maximum design 

 bearing force for 

 clean sand. 



0.5 1.0 1.5 2.0 

 Strip Footing Width, B (ft) 



a. Strip Footings 



2.5 



3.0 



6000 



5000 



4000 



u 3000 



<n 2000 



1000 



1 1 



Circular Footi 

 i 



lg 





— 













I 

 Square 



r~ 



Footing 



i 



1 B 









































































Use i 



or all 



sand anc 



clay . 





















bear: 

 sand. 



ng fore 



e for c" 



1 



.ean 



1.0 2.0 3.0 4.0 5.0 6.0 7.0 

 Footing Diameter or Width, B (ft) 

 b. Spread Footing 



Figure 3. Design Loads for Footings 



8.0 



9.0 



10.0 



29 



