Strand Hold Down 40K

PRESTRESS HOLD DOWNS

Meadow Burke has been producing quality prestress strand hold down devices since 1978. All hold
downs produced by Meadow Burke have dependable and predictable mechanical connections. There are
no weld-dependent connections.

PRESTRESS HOLD DOWN TECHNICAL AND SAFETY DATA

• All anticipated loads should be determined by a qualified structural engineer and should include an
  additional 5% for friction losses. Use the comparison of the total anticipated loading and the published
  safe working loads of the hold downs to select the appropriate hold down unit for the intended
  application.
• Exercise care in the hold down selection process. Hold downs are load rated by the unit and by
  individual strand. Both load ratings must be checked and compared. The lower of the two values is
  the controlling factor. Do not exceed either; use the next higher rated hold down, if necessary.
• The allowable number of strands per unit can be determined by dividing the unit’s safe working load
  by the calculated individual strand load (include the 5% friction loss).
• It is extremely important for an engineer to verify loads when a hold down unit is used in a hold up
  application. This type of application usually produces a load double the hold down load and requires
  two “hold up” units to satisfy the safe work load requirement.
• It is imperative that high strength coil rod and heavy hex nuts be used in all hold down and hold up
  applications in order to ensure safe working loads.
• IMPORTANT: in prestress operations all working hardware must be periodically inspected and replaced
  if signs of wear or bending are present. Worn or bent bolts should be immediately discarded. Never use
  a worn or bent bolt for any purpose and never attempt to straighten a bent bolt. Discard any bolt or coil
  rod that is suspected of being used at loads of 70% or more of ultimate capacity.

Note: Standard finish is plain. Please call for special configurations and finishes.

How To Order for Special Configurations & Finishes: Specify quantity, unit number, number of strands, “B” dimension, “C” dimension, and “C1” dimension if required.

Caution: Contact Engineering Department for any unit requiring a “B” dimension > 4-3/4″.

Total strand load shall not exceed unit safe working load.

Performance Data