Rotational stiffness of soil 1

[ranawaseem]

Please guide me about calculating the rotational stiffness factor for soil. How we calculate this and what are the values used for this factor normally?

 

[Guest262653]

Please check page 7.2-14 of the WSDOT Bridge Design Manual M 23-50.12:

http://www.wsdot.wa.gov/publications/manuals/fulltext/m23-50/chapter7.pdf

 

[JoshPlumSE]

Are you talking about a spread footing, a pile or drilled pier or what?

 

[jsha811]

You can also download the software DFSAP by WSDOT. The method as shown in the reference by avscorreia is also implemented in DFSAP program.
But this program is best suited for shafts not small diameter piles.

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