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  • Users: DataAB
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  1. DataAB

    Grout/Concrete-filled pipe legs

    I am looking for information regarding calculation of the compressive capacity of grout-filled pipe legs for a self-support communication tower. The design info I have (from CSA S16.1) appears to be largely empirically derived. I feel like I'm simply plugging in numbers. Is there an accepted...
  2. DataAB

    Screw Piles

    Is there a comprehensive book or manual available on screw (helical) pile design? I have some design literature on screw piles based on: 1) capacity due to bearing capacity of the helices only, and 2) capacity due to a combination of bearing capacity of the bottom helix (pile is in compression)...
  3. DataAB

    Adhesion between concrete and bare steel

    I had a discussion with a colleague regarding the pullout capacity of a bare steel pipe embedded in 25 MPa concrete. What is the adhesion value between concrete and bare steel? How is it related to the 28 day strength of the concrete? Any comments appreciated.
  4. DataAB

    Piles driven into bedrock

    I have two geotechnical reports (prepared by different geotechnical engineering companies) pertaining to two different sites, each with similar soil profiles. The soil profile at both sites consists of clay overlying a weak sandstone bedrock which has layers of shale/siltstone interbedded in the...
  5. DataAB

    Block Footing Foundation for a Self-Support Tower

    I am looking for information regarding footing designs for self-support communication towers. The foundation design (by others) consists of a reinforced concrete block foundation (i.e. there is no pad footing, just a block) with dimensions 6 ft x 6 ft x 8 ft deep. The self-weight of the tower...
  6. DataAB

    Design of Pole Foundations

    I am trying to find literature on the foundation design of wood poles . Assume that the poles are inserted into bored holes and the annulus is backfilled with suitable fill and tamped. The self-weight of the pole is small but the overturning moment due to wind is significant. What I am...

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