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  • Floor Vibration for Sensitive Equipment according to AISC Design Guide 2nd Edition

    We need to analyze floor vibration for sensitive equipment according to AISC Design Guide 11 2nd Edition. It looks like the FloorVibe integrated in RAM only checks according to the Design Guide 11 1st Edition, is it correct? A quick look at www.floorvibe…
  • RE: Verification of floor vibration

    I went over the floor vibration implementation in detail with a developer this morning and found that all of the four conditions outlined in the table 4.1 was not implemented. Only the first two are currently there but the logic behind when to use which…
  • RE: Verification of floor vibration

    The damping and the acceleration limits are based on the table 4.1 of the design guide 11. Typical damping varies between 2% to 5%. STAAD.Pro uses a 3% damping. The 0.5% acceleration is also typical as the other values correspond to specific structures…
  • RE: STAAD FRF (Frequency Response Function)

    STAAD.Pro can do a floor vibration analysis as per Design guide 11. The software can calculate the frequencies for the joist and girder panel modes and find out the frequencies for the combined mode. Eventually the peak acceleration due walking excitation…
  • A Guide to RAM Concept Information on the Web

    There is a wealth of technical resources available to our RAM Concept user base. Over the past several years our structural product experts have produced how-to video tutorials, product tours, and tech notes that address a wide range of topics and questions…
  • Ram SS Floor Vibrations

    I would like to check floor vibrations using the AISC DG11 method in Ram SS. I have wide-flange girders, bar joists @ 24" o.c. and a 3" slab on 9/16" form deck. The program refuses to run and says that I don't have composite deck properties defined. Form…
  • Floor Vibration Analysis

    Hello, I am trying to use STAADs floor vibration analysis utility to determine the acceleration of an indoor footbridge. I can't find anywhere to change the values from table 4.1 in design guide 11 ( Po, beta, acceleration limit). It would appear…