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  1. concacc

    Punching Shear

    ACI has a new techincal document that discusses alternative shear reinfocement (like Decon studrail). I don't know the name of the document, but you should be able to find through ACI publications order desk.
  2. concacc

    BOND MODELS FOR PRESTRESSING STRANDS

    contact PCI; Prestressed and Precast Concrete Institute, Chicago.
  3. concacc

    Hairpin clip design source needed

    your problem definition is incomplete. more info is needed to solve your deisgn problem. direction of loading, materials, geometry of weld joint. etc. hire a consulting engineer if you have no one on staff that can solve this design problem for you.
  4. concacc

    Suggestions for plastcs in tool handles to resist hammer impacts

    Poycarbonates are available with high impact resistance.<br>Used in many sporting goods. Helmets, etc.
  5. concacc

    Concrete Tilt-Up Drawings

    There are a couple of industry committees that you may wish to check out.&nbsp;&nbsp;ACI-551 (Tilt-up Concrete Construction), Gary Weiler current chariman [<A HREF="mailto:gweiler@home.com">gweiler@home.com</A>] and TCA (Tilt-up Concrete Association) Ed Sauter Executive Director [<A...
  6. concacc

    Connection Details for Precast Concrete Wall Panels

    Tilt-up Concrete Association
  7. concacc

    Connection Details for Precast Concrete Wall Panels

    Try PCI 312-786-0300<br>and TCA - Mr. Ed Sauter 319- 895-6911
  8. concacc

    Seminars

    contact university of Wisconsin. They offer many many seminars and courses.<br>
  9. concacc

    wood roof trusses

    Your question can not be answered without more details of the truss design, loads, deflection requirements, etc.<br> The manufacturers of prefab roof trusses publish span and load capacity information for their trusses. I suggest that you contact the manufacturers.<br>
  10. concacc

    carbon / steel galvanic couple

    Does the use of carbon fiber impregnated concrete create a galvanic couple with the steel rebar that leads to deterioration of the carbon fibers or the steel rebar?
  11. concacc

    Seismic Design

    We do place a dollar value on life in engineering design. Most structures and many mechanical devices (cars, airplanes, etc.) can be made safer for the user, but only at higher cost. <br> We all accept a certain level or risk upon our birth. We compound this when we buy and use potentially...
  12. concacc

    Applicable Dead Loads

    There is a release ASCE 7-95 and one about to be released ASCE 7-99. This is the industry wide bible for building loads.
  13. concacc

    Carbon Fiber Material Compatibility

    Post your question to ACI concrete forum. ACI publishes a structural journal and a material journal bimonthly. Over the past few years both magazines have included many articles relevant to your inquiry. The authors of these articles can surely lead you to the products that you need.<br>
  14. concacc

    FRP rebar and Pultruded Rods

    Thanks for the help.<br> I am David Niday.<br>
  15. concacc

    FRP rebar and Pultruded Rods

    merbas;<br> Sorry for the delay. If your offer still stands, send to:<br> Engineering Services<br> 721 Richard Street<br> Miamisburg, Ohio 45342<br> Thanks, I appreciate the help<br>
  16. concacc

    Carbon Fiber Material Compatibility

    I am concerned for the compatibility of Carbon Fiber Reinforced Polymerics in use in Concrete Structures. Is there a problem with galvanic corrosion due to the dissimilarity of Carbon fibers in close proximity to steel rebar or strand materials? Any responses are appreciated.
  17. concacc

    Carbon Fiber Material Compatibility

    I am concerned for the compatibility of Carbon Fiber Reinforced Polymerics in use in Concrete Structures. Is there a problem with galvanic corrosion due to the dissimilarity of Carbon fibers in close proximity to steel rebar or strand materials? Any responses are appreciated.
  18. concacc

    Safety factor for material handling

    OSHA requires a safety factor of 5:1 for all lifting hardware. This safety factor is found in OSHA Part 1910.<br>
  19. concacc

    allowable stress in rebar ??

    Most rebar in use today is manufactured in accordance with ASTM A 615, grade 60. That is, 60 ksi yield min and 90 ksi tensile min.<br> There are other grades, grade 40, grade 75, etc.<br> and other specifications, ASTM A 706, eg.<br> I would assume ASTM A 615 grade 60 in most applications.<br>
  20. concacc

    Plastic Materials for Impact Loads

    I am developing a product that must withstand impact loads. I need a plastic injection moldable material that can withstand these type loadings. Any suggestions will be helpful.

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