Eccentric load in shallow foundation design.

1. ECCENTRIC LOAD By : CrystinPanjaitan Edwin Serano EkiSinaga Ricky Bancin

4. B' = B - 2ey (modified length)

5. ex = (eccentricities in the directions of length)

9. For design the minimum dimensions of a rectangular footing with a central column of dimensions “Wx x Wy”are required to be Bmin = 4ey + Wy B’ = 2ey + Wy Lmin = 4ex + Wx B’ = 2ex + Wx

11. 2) Bebanbatas yang bekerjapadafondasitelapakmenimbulkankeruntuhandukungsebagaiberikut: Pu = qultB’L’

12. The ultimate bearing capacity for footings with eccentricity, using either the Meyerhof or Hansen/Vesic equations, is found in either of two ways:

13. 1) Use either the Hansen or Vesic bearing-capacity equation

14. a. Use B' in the yBNy term. b. Use B' and L' in computing the shape factors. c. Use actual B and L for all depth factors. The computed ultimate bearing capacity qult is then reduced to an allowable value qa with an appropriate safety factor SF as (and Pa = qaB'L') qa = qult/ SF

15. 2) Use the Meyerhof general bearing-capacity equation and a reduction factor Re

27. THANK YOU… ^^