(07-21-2009, 01:20 AM)concreteok Wrote: Robertsas,
So how to u reckon we should do if we have a deep basement wall spanning between foundation piles? Closer supporting piles? or put up another beam below the wall to span?
Dear Concreteok,
Usually, I design the basement wall as a concrete retaining wall (soil pressure, seismic and gravity loading) not design as deep beam. I used to create continous pile cap below the basement wall.
Also check the reaction of your pile, sometimes you must add your number of pile to resist the tension from uplift, seismic or the max combination of loading that you have..
Number and configuration of pile shall be resist the uplift and or tension force from overturning of your whole structure (upper and substructure as a unity)
regards,
robertsasmita