Four sided soldier pile shoring system installed to excavate for a bridge pier footing. Drilled shafts to be constructed, then concrete footing placed against shoring.
Any concerns about steel piles and timber lagging left in place next to the new concrete foundation? i.e. corrosion, rot, or...
Does anyone have experience using Dwyidag rod (ASTM A722 Fu=150ksi) as a shear bolt in a bearing connection?
The steel manual permits 0.40Fu for shear stress (LRFD) for other grades of threaded rod. Would you use a different value for PT rod?
The rods are not post-tensioned beyond snug tight...
AASHTO Figure 5.6.2A (in the 17th ed. standard spec) shows a simplified pressure distribution for wall elements embedded in rock. The formula for the passive resistance of the rock is given as:
Pp = s*D /(1+tan B)/(D+2^.5*b)
If s is shear strength of rock in psf, shouldn't the (D+2^.5*b) term...
