shearwall failure?
shearwall failure?
(OP)
Hi I'm curious for some feedback. I've been parking at this building for the past 8 years and Monday I just noticed these cracks in the attached photos. Being a little nosy I went to the city building planning department to take a look at the permit drawings. The building was constructed in 1982; the building is 8 stories reinforced concrete. The foundation consists of a 3'-6" thick mat slab with one level of underground parking. Shear failure?






RE: shearwall failure?
With eight up, one down, and a raft slab, the building would be a prime candidate for backstay shear amplification/reversal issues in the basement.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: shearwall failure?
RE: shearwall failure?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: shearwall failure?
RE: shearwall failure?
Ingenuity the floors are not post tensioned. The floor above the park axe is quite thick to accommodate a bank vault.
Looking at the drawings, it looks like the only shear walls would have been a bank of elevators ( c shaped) with quite a bit of eccentricity. I'm wondering if the 8 inch walls are taking some lateral load.
RE: shearwall failure?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: shearwall failure?
RE: shearwall failure?
How do the ends of the shearwall look? With a typical shearwall I would expect we'd see some cracking at the chords due to the flexure of the wall.
Professional and Structural Engineer (ME, NH)
American Concrete Industries
www.americanconcrete.com
RE: shearwall failure?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: shearwall failure?
RE: shearwall failure?
RE: shearwall failure?
Mike McCann, PE, SE (WA)
RE: shearwall failure?