Steel Detailing | Precast Detailing | Estimation

Tag: Ferrules

  • SHOP DRAWING AND ITS COMPONENTS

    Shop Drawing:
    Shop drawings is detailed drawing of the original design of the building. It’s a drawing or set of drawings given to our consultant or Fabricator. It is used to produce the individual precast panels in the factory. Shop drawings are typically required some prefabricated components, they are Listed below.

    Shop Drawing Components:

    1. Lifter’s [Edge lifters – (Top & side) and face lifter’s].
    2. Grout tubes & Dowel bars (Top & Bottom).
    3. Props. (Face & Edge props)
    4. Ferrules (Handrail, Temporary connection ferrule & Slab rebate ferrule,
    steel connection ferrule).
    5. Couplers.
    6. Pull-out bars and starter bars.
    7. Cast in Plate.
    8. Strong back.
    9. ID tag.
    10. Any special components required for some special cases like Conduits etc.



                   SAMPLE SHOP DRAWING ELEVATION WITH COMPONENTS

  • Ferrules and bolt length

    Items to take care

    1. Refer Ferrule Catalogue – https://reid.com.au/upload/modules/document_loader/Anchoring_Solutions_Design_Guide_2011.pdf
    2. Check whether ferrule face is flush with concrete or rebated.
    3. Check Thread length in Ferrule
    4. Check total thickness of bolted items including washer.
    5. Make sure that the bolt specified is at least 5 mm less than (WASHER THICKNESS + Plate thicknesses + Rebate in concrete + thread Length)

    Traps

    1. Bolt too long – If thread length in ferrule not taken into consideration
    2. Bolt too short – If washer, Rebate Plate thicknesses not taken into consideration

    Main issue here is the entire length of bolt is decided by the Cut length the modeler provides.

    If proper care is not taken, then there will be a site issue