Design Memorandum



TO:                  All Design Staff

FROM:            Bijan Khaleghi
DATE:             November 14, 2013
SUBJECT:       Elastic Design In Lieu of Overstrength Forces for Capacity Protection


This Design Memorandum describes WSDOT policy for use of elastic design forces in lieu of design using overstrength plastic hinging forces for capacity protection for members intended to remain essentially elastic at the displacement demand. Elastic response in this case means no inelastic action in any of the reinforcement.   read more....



If you have any questions regarding these issues, please contact Chyuan-Shen Lee at 360-705-7441 or Bijan Khaleghi at 360-705-7181.


cc:   Mark Gaines, Bridge Construction 47354

       F. Posner, Bridge and Structures 47340