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  1. lotsofquestions

    Modeling soil

    I'm trying to model soil under a 4m x 4m concrete slab foundation in SAP2000. I am using a shell element to model the slab. I know I can use springs to model the soil but am unclear on the specifics of how to do so. There are lots of spring options in SAP2000. Should I use joint springs or...
  2. lotsofquestions

    Modeling a shaker mounted to the roof

    I'm trying to model a structure in SAP2000 that has a shaker mounted to the underside of the roof slab. I've defined a time history acceleration function to represent the shaker input but I can't figure out how to apply it to a specific node on the roof of my structure. thread801-116070 says...

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