crack width check
crack width check
(OP)
Dear experts
i was designing a big tank with very high straining actions , and i FACED a problem in the check of the crack width should i commit with the following table and equations in ACI224R-01 or only the maximum steel stress and spacing mentioned in ACI350-06


i was designing a big tank with very high straining actions , and i FACED a problem in the check of the crack width should i commit with the following table and equations in ACI224R-01 or only the maximum steel stress and spacing mentioned in ACI350-06


Thank you





RE: crack width check
If it's a round tank limit your working stress to 16,000 psi. If it's rectangular use 6 inch spacing and limit the stress to 24,000 psi. I'm simplifying some stuff from the old ACI 350-89.
RE: crack width check
your suggested near to ACI350-06 for check on the stresses and spacing depend on type of exposure and type of element (one way and two way) also as per the commentary in the same code [b](R10.6.4 — This section replaces the z factor requirements of the 2001 code edition. The maximum allowable stresses are now specified directly as a function of bar spacing),so all above equations which are depend on (Z) are replaced in the last code .
Thank you