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  • Aaron Jamalzadeh

    Administrator
    May 22, 2020 at 11:27 am

    It depends, the reason we do initial stressing is to prevent early age shrinkage cracks in PT slabs. If you have mesh or reo throughout in the slab (at least at top), you can skip the initial however, it is still recommended to do the initial even in case of having reo.

  • Aaron Jamalzadeh

    Administrator
    May 18, 2020 at 3:25 pm

    Hi Matthew,

    Poor grouting and not satisfying min. edge distance for shim have caused this bearing failure in the precast connection. Quite common one.

  • Aaron Jamalzadeh

    Administrator
    May 18, 2020 at 12:42 pm

    Hi Harvey,

    1. First stud is sitting over the column, that is outside shear perimeter and it is useless now, start of rail should align with the face of column.

    2. PT drapes at both directions are sitting at highest possible. causing clash and not being able to install studs in right layer, and cover may not be satisfied now.

    3. Studs are not tighten up yet, it could be work in progress but they have to be tied in multiple points as otherwise they can easily rotate during the concrete pour.

    4. There are max. lateral spacing between rails in plan view, this design doesn’t seem to be satisfying that. Unless there are provisions to allow that.

    To find out more on what can potentially go wrong with steel reinforcement, check out ‘Steel Reinforcement’ course. ( https://teletraining.com.au/courses/steel-reinforcement/ )

    Steel Reinforcement – Concrete Structure Series (3/7)

Viewing 1 - 3 of 3 posts