Slab supporting precast veneer panels has cracked.
Slab supporting precast veneer panels has cracked.
(OP)
I have a situation where a slab supporting precast concrete panel veneer has cracked and I am having trouble determining the cause for the cracks. The foundation system is grade beam on auger cast pile. The structural system is steel framed with brick veneer. However, in this particular side of the building, precast panels with thin brick were used due to limited space. At this location, the slab is structural and spans from grade beam to grade beam, so the slab is sitting directly on the grade beam. The precast panels are then supported on bearing pads sitting directly on the slab. The cracks do not appear to be bearing related, but appear to be bending and shear related. Finally, I have also noticed that bearing pad locations do not match those indicated on the shop drawings. The vertical supports were supposed to be in the same location as the lateral supports, but they are not.






RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
Is there any relationship between the cracks and the vertical support points or between the cracks and the lateral support points?
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
the column, pile, cantilever grade beam is curious to me as well. The columns and not the precast could be the source of the larger loads? Getting the beam in line with the column like C line makes sense, but the roundabout load path at B and D seems to be made a little more difficult than it needed to be.
is there a reason why there are 4 piles at b and D and only 2 at C, the trib areas seem to be the same?
not sure i am helping any, but you have got me curious
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
Dik
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
I'm still curious though, how does a beam with 28 #8 not need ties spaced at least d/2? Or are there other details that account for tighter spacing?
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
That is why it looks to me like the slab may not be bonded to the beam in some locations so there can be wide gaps.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.
RE: Slab supporting precast veneer panels has cracked.