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How is an accelerogram reading applied to specific structural joints?

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ANSWER: AISC beam vibration analysis is available for composite beams by using the composite-design post processor. To study the entire floor system or local systems, such as with a supporting truss assembly, uncheck the Include Lateral Mass Only option through Define > Mass Source, then generate out-of-plane vibration modes. Design may then proceed such that resultant behavior meets the guidelines or requirements of relevant publications or code.

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Related Incidents:

  • Incident 47249: question about AISC vibraion analysis and beams supported by a truss