AASHTO tells you to use lever rule when determining the forces in exterior open box beam.
Where should I put the the supports to apply the lever rule?
For the first support, should it be the CL of the exterior web or CL of the beam? For the second support - - CL of the second girder, CL if...
I am getting strange behaviour of external tendons. If the tendon is completely inside a member everything seems to be OK. if the tendon is external - strange loss of prestress is occuring. (see attachment). Does anyone have an idea why this is happening and how to avoid it?
Thanks