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  1. mcox

    AASHTO LRFD 4th edition Torsion and Shear in Deep Beams

    I am currently designing a post-tensioned hammerhead pier cap and have run into a design issue with the wording in AASHTO and I am looking for some help. My cantilever cap is 10 feet wide and 12.5 feet deep at the pier shaft. The load is placed only 7 feet from the edge of the pier shaft. In...
  2. mcox

    Mass Concrete Special Provision

    Can anyone direct me to a good special provision for structural mass concrete? Texas appears to have a good one but I was curious if many other states have developed one. Thanks!
  3. mcox

    LRFD Temperature Multiplier

    We are working on a three span deck truss design which has hollow stem piers. These piers were designed using the LRFD design specs. After the design was complete we decided to cross check it with the Group V loading of LFD and found that the hollow stem pier would require approx. 25% more...
  4. mcox

    LRFD vs. LFD temperature load

    We are working on a three span deck truss design which has hollow stem piers. These piers were designed using the LRFD design specs. After the design was complete we decided to cross check it with the Group V loading of LFD and found that the hollow stem pier would require approx. 25% more...

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