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ACI 307

ACI 307

(OP)
Per Section 4.2.3.2 of ACI 307, "After solving for Ma, across-wind moments at any height, Ma(z), shall be calculkated..."?

May I ask how to calculate Ma(z)?

Thanks

Michael

RE: ACI 307

Use your mode shape to establish curvatures along the length of the chimney relative to the base curvature. Then multiply those values by Ma to get the set of values corresponding to M(z). At least, that's how it reads to me. I've never had the pleasure of designing a large chimney.

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: ACI 307

(OP)
KootK,

Thank you very much for your reply.

May I ask if you can recommend any literature showing details of calculating Ma(z)?

Best regards,

Michael

RE: ACI 307

I'm afraid that I don't know of such a reference. Most general dynamics texts deal with mode shapes of course.

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.

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