# Pier calculations #### Calculation of pile moment Type of pile | Type of pile | Comments | | ------------------ | ---------------------- | | Bored cast in-situ | Stiffness is different | #### Depth of fixity (for Seismic case) $$L\_1 =$$ Height above ground level of lateral Forces $$T = ( E \* I/h\_h)^{1/5}$$ #### Maximum moment in pile Fixed end moment in pile is given by, $$M\_F = Q \* (L\_1 + L\_F) / 2$$ (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, $$M = m \* M\_F$$ From IS: 2911 (Part 1/ Sec 2-2010), from fig. 5b of Append. C, corresponding to $$L\_1 / T$$ . Maximum moment in pile, $$m = 12.29 \* Q$$ {% hint style="info" %} Pile moments are calculated in this fashion in this book. {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://i.janardhanpulivarthi.com/bridge-engineering/pier-calculations.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.