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6. Special design provisions and accessories
6.1 Realizing fault continuity
Thin purlins are generally designed as continuous beams, which mechanically reduces span moments and deflections. Depending on the number of spans, it's important to take into account the increased load drop at adjacent edge supports.
Given the lengths of the buildings and the considerations involved in transport or handling/lifting operations, it is necessary to use joints that ensure this continuity.
The continuity of cold-formed purlins is adapted to their particular shape, Z, C or Sigma.
Type Z purlins are made continuous by interlocking at the supports (figure 17 ). This provides...
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Special design provisions and accessories
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Standards and norms
- Continuous hot-dip coated steel flat products for cold forming – Technical delivery conditions - NF EN 10346 AFNOR - 2015
- Hot-rolled flat products in high-strength steel for cold forming – Part 1: General technical delivery conditions - NF EN 10149-1 AFNOR - 2013
- Hot-rolled flat products in high-strength steel for cold forming – Part 2: Technical delivery conditions for thermomechanically rolled steels...
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