Thanks for your great understanding of my question.
So, you have detected some sort of implicity in AASHTO.
Accordingly,article (4.7.4.4) in AASHTO LRFD BRIDGE DESIGN SPECIFICATION 2012 , proposes a support length for girders(N).But, regarding the article's figure, this length just accomodates...
Thanks.
But would you please refer me to a specific article of AASHTO or any other formula so that I can precisely calculate the required distance between EDGE OF GIRDERS and BACKWALL OF ABUTMENTS.
Hi
Is there any required minimum free length between edge of girders and wall of abutment, when using sliding elastomeric support.(This free length seems to should be larger than displacement due to lateral loads.)