Upon your site experience, What do you recommend for inclined column due to casting inaccuracy? And what the range of acceptance?

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Mohannad H. Al-Sherrawi

Dear Sir,

You can refer to ACI 117

" Specification for Tolerances for Concrete Construction and Materials (ACI 117-10) and Commentary "

Also,

BS ISO 1803:1997

" Building construction. Tolerances. Expression of dimensional accuracy. Principles and terminology "

And

BS 5606:1990

" Guide to accuracy in building "

I hope that these specifications are good for your column case.

Haidar Hosamo

For lines, surfaces, corners, arises, and elements: the lesser of 0.3% times the height above the top of foundations as shown on structural drawings or ±1 in. (25 mm). For the outside corner of an exposed corner column and contraction joint grooves in concrete exposed to view: the lesser of 0.2% times the height above the top of foundations as shown on structural drawings or ±1/2 in. (13 mm).

Reference: ACI 117-06 page 31.

Hanan Ashraf Wani

inclined columns if incilned upto ACI limits is managable but excessive inclination mostly happens due to poor foundation or foundation soil not stabalized.