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Recent content by Ronengo

  1. R

    Stayform as a bulkhead for water bearing structure construction joint - corrosion concerns?

    Thanks guys. To close this out: we decided to reject the use of Stayform for the joints in the wastewater structure, given that ACI 350 is silent on the issue. We couldn't find any resource that assessed these forms in hydraulic structures, and had concerns given that the water is aerated and...
  2. R

    Oversized hole considerations for anchoring overhead conduit supports - Unistrut P2073A Post Base and Hilti HDA-PR M10 undercut anchors

    Thanks both. @HDStructural I'd love to be able to make a judgement call that forces are low and slip is fine because of expansion joints in the conduit, but RCSC 3.3.2.1 states "For snug-tightened or pretensioned joints subject to shear or combined shear and tension, oversized holes are not...
  3. R

    Oversized hole considerations for anchoring overhead conduit supports - Unistrut P2073A Post Base and Hilti HDA-PR M10 undercut anchors

    Hi all, I am working on some designs for overhead conduit supports in a seismic region (SDC D). The contractor is proposing to use Unistrut frames to support the conduit. The anchorage they are proposing is Unistrut P2073A Post Bases and Hilti HDA-PR M10 undercut anchors. My concern: Per the...
  4. R

    Stayform as a bulkhead for water bearing structure construction joint - corrosion concerns?

    I have a contractor pushing hard to use Stayform (galvanized stay in place forms) for the base slab of a water bearing structure. The manufacturer themselves have a page dedicated to the use of Stayform as a bulkhead for mat slabs...
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