Formwork Design Tables - EXAMPLEWall Forms

• WALES (Cont’d)

  • For example, if double 2x6 wales are used the spacing between ties that support the wales can be a maximum of 33 in.
  • A check of the load capacity of available ties might help in confirming the wale selection.
  • If the double 2x6 were used with supporting ties spaced at 33 in., the average tie load would be
    33/12 x 36/12 x 600 = 4950 lb
    
  • A tie with a safe working load of 5000 lb should be selected.
  • With a tie spacing of 24 in., the necessary tie capacity will be 3600 lb. [ 24/12 x 36/12 x 600 = 3600 lb]

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