Creep in reinforced concrete
Creep in reinforced concrete
(OP)
I am reviewing a load-bearing wall system in which shot-crete is being used. Am I being overly critical of I comment that the design engineer has not accounted for creep deformation and shrinkage in the wall? I believe this is key to the strength of the wall. Your thoughts pleas!






RE: Creep in reinforced concrete
Professional and Structural Engineer (ME, NH)
American Concrete Industries
www.americanconcrete.com
RE: Creep in reinforced concrete
RE: Creep in reinforced concrete
RE: Creep in reinforced concrete
RE: Creep in reinforced concrete
RE: Creep in reinforced concrete
Professional and Structural Engineer (ME, NH)
American Concrete Industries
www.americanconcrete.com
RE: Creep in reinforced concrete
Another area where creep is important is in high rise building column shortening.
RE: Creep in reinforced concrete
As Hokie has mention, creep is very important in high rise columns and cores. It you have an asymmetric building with a concrete core are one edge with fairly low axial concrete stress under vertical loading, and columns at the far face with relatively high stresses under vertical loading, there will be a large axial shortening difference accentuated by a factor of 2 - 2.5 by creep which can result in significant rotation at the top of the building. I know of one case in the 1980's where the lift shaft was so far off straight that the lifts could not, run! Designers often use vertical prestress in the outside face of the core to compensate for this!
RE: Creep in reinforced concrete
Professional and Structural Engineer (ME, NH)
American Concrete Industries
www.americanconcrete.com
RE: Creep in reinforced concrete
RE: Creep in reinforced concrete