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  • Users: Bartje
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  1. Bartje

    interpreting spt in diabase, curacao

    Our company is structural engineer for a project on curacao, a geo-consultancy firm made spt-tests but no longer exist. spt's show diabase-sand that's a little silty and the worst one has following spt-log, 18, 52, 74 and at last 122. These are respectively the 1st, to 4th foot that are tested...
  2. Bartje

    Full stabilization of beam by bracing

    I wonder why full stabilization of a beam (for example by diaphragm bracing) is: S*=1/2*A/fy In which S* is stiffnes of bracing (diaphragm), the Shear Force needed to create an angle of 1 rad, so the Shear Force needed to deform 1 inch over one inch length of diaphragm. 1/2 is a half fy = yield...

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