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Cold Rolled Products

Eaves Brace Sets

Restraint to the eaves beam is required within the span, either at mid-span, third or quarter points according to the design requirements. This can be evaluated using the Hi-Span Design Suite. With each brace set a stiffening cleat is needed to provide rigidity to the web of the member. The eaves brace member is fixed back to the first purlin up the slope, this construction reduces the effective span of the eaves member against horizontal wind forces.
The inclusion of the brace set also helps to resist torsion on the eaves beam when the gutter is positioned outside the building envelope.
Section sizes calculated using the Hi-Span Design Suite assume that the compression flange of the eaves beam is fully restrained by the sheeting or gutter member.

 

  Eaves Tie Type BW1
The eaves tie type BW1 is suitable where there is a boundary wall gutter on top of the eaves beam. Due to the nature of this construction the standard restraint between the eaves beam and the purlin is no longer possible. An additional angle cleat is required in order to offset the restraint member below the gutter sole. This particular detail can vary greatly between jobs and it is ultimately the detailers responsibilty to ensure that the sole of the gutter does not clash with the restraint member.
  Eaves Tie Type EG1
The eaves gutter 1 restraint is a suitable restraint where the gutter sits on the outer face of the building envelope. This particular restraint is suitable for roof pitches up to and including 15o.
 

Eaves Tie Type EG2
Where the roof pitch exceeds 15o the eaves gutter 2 restraint is required. This suits the sag bar configuration as shown here, where the sag bars are positioned from the top gauge line holes to the bottom.

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