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Pier calculations

Pile moment capacity

Calculation of pile moment

Type of pile
Type of pile
Comments
Bored cast in-situ
Stiffness is different

Depth of fixity (for Seismic case)

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L1=L_1 =
Height above ground level of lateral Forces
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T=(E∗I/hh)1/5T = ( E * I/h_h)^{1/5}

Maximum moment in pile

Fixed end moment in pile is given by,
MF=Q∗(L1+LF)/2M_F = Q * (L_1 + L_F) / 2
(For fixed head piles, refer to IS 2911 (part 1/Sec 2-2010) Cl. C.4.3 of Appendix C)
Actual maximum moment in pile is given by,
M=m∗MFM = m * M_F
From IS: 2911 (Part 1/ Sec 2-2010), from fig. 5b of Append. C, corresponding to
L1/TL_1 / T
.
Maximum moment in pile,
m=12.29∗Qm = 12.29 * Q
Pile moments are calculated in this fashion in this book.
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