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Teaching & Learning > eHandbook > eConstruct > Scaffolding I
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SCAFFOLDING.
Pavement frames or gantries.
  • PROCEDURE
  • CONSTRUCTION.
  • BRACING
    		•
  • TYING IN
  • PLATFORMS
  • TUBULAR PICKETS
    		•
    PROCEDURE

    • The construction under spesification.
    • Governed by the loads to be carried.
    • Columns of grouped standards should be joined by transverse beam across and along the top.
    • To makesure the bracing should be rigid.
    • Pavement gantry or framework should be carefully designed.

      1. Construction.
      2. Bracing.
      3. Tying in.
      4. Platforms.
    CONSTRUCTION

    - Soleplates must be placed under all baseplates.
    - Baseplates must be placed under all standards and nailed or screwed.
    - All standards must be plumb.
    - Ledger must be horizontal and fixed to the standards with right angle couplers.
    - Spacing between ledger will vary from job to job.
    BRACING

    -Sway bracing must be fitted to the full height of the scaffold at an angle of about 45 degrees.
    -Zig zag bracing may be fitted to the full height of the end bays and intervals of not less than 30 meters.
    - Diagonal plan bracing is generally fitted under the working platform.

    TYING IN

    - Gantries must be tied into the building throughtout their length and height to prevent movement towards or away from the building.
    PLATFORMS

    - Platform of gantry must be close boarded between front and rear standards, and each board must span at least three supports.
    - 230 x 75 mm timber decking will be used for spanning from ledger.
    - All platform must be fitted with guardrails and toe boards whenever in use.
    TUBULAR PICKETS

    		If the ground is suitable, and other meansare not conveniently available, then good anchorages can be made using scaffold tubes.All fixings must e with right angle couplers. The tubes should be driven into the ground to a depth of at least 1.200 metres at 90º to the pull of the guy. The guy should run at an angle of about 45º